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raw | patch | inline | side by side (parent: a63e9e7)
| author | miklosh <miklosh@users.sourceforge.net> | |
| Thu, 12 Jul 2007 17:05:34 +0000 (17:05 +0000) | ||
| committer | miklosh <miklosh@users.sourceforge.net> | |
| Thu, 12 Jul 2007 17:05:34 +0000 (17:05 +0000) |
| src/Makefile.am | patch | blob | history | |
| src/extension/init.cpp | patch | blob | history | |
| src/extension/internal/Makefile_insert | patch | blob | history | |
| src/extension/internal/pdfinput/pdf-input.cpp | [new file with mode: 0644] | patch | blob |
| src/extension/internal/pdfinput/pdf-input.h | [new file with mode: 0644] | patch | blob |
| src/extension/internal/pdfinput/pdf-parser.cpp | [new file with mode: 0644] | patch | blob |
| src/extension/internal/pdfinput/pdf-parser.h | [new file with mode: 0644] | patch | blob |
| src/extension/internal/pdfinput/svg-builder.cpp | [new file with mode: 0644] | patch | blob |
| src/extension/internal/pdfinput/svg-builder.h | [new file with mode: 0644] | patch | blob |
diff --git a/src/Makefile.am b/src/Makefile.am
index 0f8cd9e4b796807f63916cd85ab690f973dd86f1..9f33ae5f4e6ce6ca8353d37e90a7f61b5bb44d89 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
$(INKBOARD_CFLAGS) \
$(XFT_CFLAGS) \
$(GTK_UNIX_PRINT_CFLAGS) \
+ $(POPPLER_CFLAGS) \
+ $(POPPLER_GLIB_CFLAGS) \
-DPOTRACE=\"potrace\" \
$(INKSCAPE_CFLAGS) \
-I$(top_srcdir)/cxxtest
diff --git a/src/extension/init.cpp b/src/extension/init.cpp
index a6471be257f9d8348769cefcfcd65257b254cf91..9a11097827bec8a0b6c8119b5c3323cb4b1da6c3 100644 (file)
--- a/src/extension/init.cpp
+++ b/src/extension/init.cpp
# include "internal/cairo-png-out.h"
# include "internal/cairo-ps-out.h"
#endif
+#ifdef HAVE_POPPLER
+# include "internal/pdfinput/pdf-input.h"
+#endif
#ifdef HAVE_POPPLER_GLIB
# include "internal/pdf-input-cairo.h"
#endif
}
Internal::CairoPsOutput::init();
#endif
+#ifdef HAVE_POPPLER
+// Internal::PdfInput::init();
+#endif
#ifdef HAVE_POPPLER_GLIB
Internal::PdfInputCairo::init();
#endif
index 8886254dad8973d0f6248e51891022b014317e43..f615e02fd3a82fcccf47eda22fcbcab0b9b1c07b 100644 (file)
extension/internal/eps-out.cpp \
extension/internal/gdkpixbuf-input.h \
extension/internal/gdkpixbuf-input.cpp \
+ extension/internal/pdfinput/svg-builder.h \
+ extension/internal/pdfinput/svg-builder.cpp \
+ extension/internal/pdfinput/pdf-parser.h \
+ extension/internal/pdfinput/pdf-parser.cpp \
+ extension/internal/pdfinput/pdf-input.h \
+ extension/internal/pdfinput/pdf-input.cpp \
extension/internal/pov-out.cpp \
extension/internal/pov-out.h \
extension/internal/odf.cpp \
diff --git a/src/extension/internal/pdfinput/pdf-input.cpp b/src/extension/internal/pdfinput/pdf-input.cpp
--- /dev/null
@@ -0,0 +1,139 @@
+ /** \file
+ * Native PDF import using libpoppler.
+ *
+ * Authors:
+ * miklos erdelyi
+ *
+ * Copyright (C) 2007 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef HAVE_POPPLER
+
+#include "goo/GooString.h"
+#include "ErrorCodes.h"
+#include "GlobalParams.h"
+#include "PDFDoc.h"
+#include "Page.h"
+#include "Catalog.h"
+
+#include "pdf-input.h"
+#include "extension/system.h"
+#include "extension/input.h"
+#include "svg-builder.h"
+#include "pdf-parser.h"
+
+#include "document-private.h"
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+
+/**
+ * Parses the first page of the given PDF document using PdfParser.
+ */
+SPDocument *
+PdfInput::open(::Inkscape::Extension::Input * mod, const gchar * uri) {
+
+ // Initialize the globalParams variable for poppler
+ if (!globalParams) {
+ globalParams = new GlobalParams();
+ g_message("Created globalParams");
+ }
+ GooString *filename_goo = new GooString(uri);
+ PDFDoc *pdf_doc = new PDFDoc(filename_goo, NULL, NULL, NULL); // TODO: Could ask for password
+ if (!pdf_doc->isOk()) {
+ int error = pdf_doc->getErrorCode();
+ delete pdf_doc;
+ if (error == errEncrypted) {
+ g_message("Document is encrypted.");
+ } else {
+ g_message("Failed to load document from data (error %d)", error);
+ }
+
+ return NULL;
+ }
+
+ // Get needed page
+ int page_num = 1;
+ Catalog *catalog = pdf_doc->getCatalog();
+ Page *page = catalog->getPage(page_num);
+
+ double width, height;
+ int rotate = page->getRotate();
+ if (rotate == 90 || rotate == 270) {
+ width = page->getCropHeight();
+ height = page->getCropWidth();
+ } else {
+ width = page->getCropWidth();
+ height = page->getCropHeight();
+ }
+
+ SPDocument *doc = sp_document_new(NULL, TRUE, TRUE);
+ bool saved = sp_document_get_undo_sensitive(doc);
+ sp_document_set_undo_sensitive(doc, false); // No need to undo in this temporary document
+
+ // Create builder and parser
+ SvgBuilder *builder = new SvgBuilder(doc);
+ PdfParser *pdf_parser = new PdfParser(pdf_doc->getXRef(), builder, page_num-1,
+ page->getResourceDict(), page->getCropBox());
+
+ // Parse the document structure
+ Object obj;
+ page->getContents(&obj);
+ if (!obj.isNull()) {
+ pdf_parser->saveState();
+ pdf_parser->parse(&obj);
+ pdf_parser->restoreState();
+ }
+
+ // Cleanup
+ obj.free();
+ delete pdf_parser;
+ delete builder;
+
+ // Restore undo
+ sp_document_set_undo_sensitive(doc, saved);
+
+ return doc;
+}
+
+#include "../clear-n_.h"
+
+void
+PdfInput::init(void) {
+ Inkscape::Extension::Extension * ext;
+
+ ext = Inkscape::Extension::build_from_mem(
+ "<inkscape-extension>\n"
+ "<name>PDF Input</name>\n"
+ "<id>org.inkscape.input.pdf</id>\n"
+ "<input>\n"
+ "<extension>.pdf</extension>\n"
+ "<mimetype>application/pdf</mimetype>\n"
+ "<filetypename>Adobe PDF (*.pdf) [native]</filetypename>\n"
+ "<filetypetooltip>PDF Document</filetypetooltip>\n"
+ "</input>\n"
+ "</inkscape-extension>", new PdfInput());
+} // init
+
+} } } /* namespace Inkscape, Extension, Implementation */
+
+#endif /* HAVE_POPPLER */
+
+/*
+ Local Variables:
+ mode:c++
+ c-file-style:"stroustrup"
+ c-file-offsets:((innamespace . 0)(inline-open . 0))
+ indent-tabs-mode:nil
+ fill-column:99
+ End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
diff --git a/src/extension/internal/pdfinput/pdf-input.h b/src/extension/internal/pdfinput/pdf-input.h
--- /dev/null
@@ -0,0 +1,51 @@
+#ifndef __EXTENSION_INTERNAL_PDFINPUT_H__
+#define __EXTENSION_INTERNAL_PDFINPUT_H__
+
+ /** \file
+ * PDF import using libpoppler.
+ *
+ * Authors:
+ * miklos erdelyi
+ *
+ * Copyright (C) 2007 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef HAVE_POPPLER
+
+#include "../../implementation/implementation.h"
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+
+class PdfInput: public Inkscape::Extension::Implementation::Implementation {
+ PdfInput () { };
+public:
+ SPDocument *open( Inkscape::Extension::Input *mod,
+ const gchar *uri );
+ static void init( void );
+
+};
+
+} } } /* namespace Inkscape, Extension, Implementation */
+
+#endif /* HAVE_POPPLER */
+
+#endif /* __EXTENSION_INTERNAL_PDFINPUT_H__ */
+
+/*
+ Local Variables:
+ mode:c++
+ c-file-style:"stroustrup"
+ c-file-offsets:((innamespace . 0)(inline-open . 0))
+ indent-tabs-mode:nil
+ fill-column:99
+ End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
diff --git a/src/extension/internal/pdfinput/pdf-parser.cpp b/src/extension/internal/pdfinput/pdf-parser.cpp
--- /dev/null
@@ -0,0 +1,3031 @@
+
+ /** \file
+ * PDF parsing using libpoppler
+ *
+ * Derived from poppler's Gfx.cc
+ *
+ * Copyright 1996-2003 Glyph & Cog, LLC
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef HAVE_POPPLER
+
+#ifdef USE_GCC_PRAGMAS
+#pragma implementation
+#endif
+
+extern "C" {
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stddef.h>
+#include <string.h>
+#include <math.h>
+
+}
+
+#include "svg-builder.h"
+#include "Gfx.h"
+#include "pdf-parser.h"
+#include "unit-constants.h"
+
+#include "goo/gmem.h"
+#include "goo/GooTimer.h"
+#include "goo/GooHash.h"
+#include "GlobalParams.h"
+#include "CharTypes.h"
+#include "Object.h"
+#include "Array.h"
+#include "Dict.h"
+#include "Stream.h"
+#include "Lexer.h"
+#include "Parser.h"
+#include "GfxFont.h"
+#include "GfxState.h"
+#include "OutputDev.h"
+#include "Page.h"
+#include "Annot.h"
+#include "Error.h"
+
+// the MSVC math.h doesn't define this
+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#endif
+
+//------------------------------------------------------------------------
+// constants
+//------------------------------------------------------------------------
+
+// Max recursive depth for a function shading fill.
+#define functionMaxDepth 6
+
+// Max delta allowed in any color component for a function shading fill.
+#define functionColorDelta (dblToCol(1 / 256.0))
+
+// Max number of splits along the t axis for an axial shading fill.
+#define axialMaxSplits 256
+
+// Max delta allowed in any color component for an axial shading fill.
+#define axialColorDelta (dblToCol(1 / 256.0))
+
+// Max number of splits along the t axis for a radial shading fill.
+#define radialMaxSplits 256
+
+// Max delta allowed in any color component for a radial shading fill.
+#define radialColorDelta (dblToCol(1 / 256.0))
+
+// Max recursive depth for a Gouraud triangle shading fill.
+#define gouraudMaxDepth 6
+
+// Max delta allowed in any color component for a Gouraud triangle
+// shading fill.
+#define gouraudColorDelta (dblToCol(1 / 256.0))
+
+// Max recursive depth for a patch mesh shading fill.
+#define patchMaxDepth 6
+
+// Max delta allowed in any color component for a patch mesh shading
+// fill.
+#define patchColorDelta (dblToCol(1 / 256.0))
+
+// Max number of operators kept in the history list.
+#define maxOperatorHistoryDepth 5
+
+//------------------------------------------------------------------------
+// Operator table
+//------------------------------------------------------------------------
+
+#ifdef WIN32 // this works around a bug in the VC7 compiler
+# pragma optimize("",off)
+#endif
+
+PdfOperator PdfParser::opTab[] = {
+ {"\"", 3, {tchkNum, tchkNum, tchkString},
+ &PdfParser::opMoveSetShowText},
+ {"'", 1, {tchkString},
+ &PdfParser::opMoveShowText},
+ {"B", 0, {tchkNone},
+ &PdfParser::opFillStroke},
+ {"B*", 0, {tchkNone},
+ &PdfParser::opEOFillStroke},
+ {"BDC", 2, {tchkName, tchkProps},
+ &PdfParser::opBeginMarkedContent},
+ {"BI", 0, {tchkNone},
+ &PdfParser::opBeginImage},
+ {"BMC", 1, {tchkName},
+ &PdfParser::opBeginMarkedContent},
+ {"BT", 0, {tchkNone},
+ &PdfParser::opBeginText},
+ {"BX", 0, {tchkNone},
+ &PdfParser::opBeginIgnoreUndef},
+ {"CS", 1, {tchkName},
+ &PdfParser::opSetStrokeColorSpace},
+ {"DP", 2, {tchkName, tchkProps},
+ &PdfParser::opMarkPoint},
+ {"Do", 1, {tchkName},
+ &PdfParser::opXObject},
+ {"EI", 0, {tchkNone},
+ &PdfParser::opEndImage},
+ {"EMC", 0, {tchkNone},
+ &PdfParser::opEndMarkedContent},
+ {"ET", 0, {tchkNone},
+ &PdfParser::opEndText},
+ {"EX", 0, {tchkNone},
+ &PdfParser::opEndIgnoreUndef},
+ {"F", 0, {tchkNone},
+ &PdfParser::opFill},
+ {"G", 1, {tchkNum},
+ &PdfParser::opSetStrokeGray},
+ {"ID", 0, {tchkNone},
+ &PdfParser::opImageData},
+ {"J", 1, {tchkInt},
+ &PdfParser::opSetLineCap},
+ {"K", 4, {tchkNum, tchkNum, tchkNum, tchkNum},
+ &PdfParser::opSetStrokeCMYKColor},
+ {"M", 1, {tchkNum},
+ &PdfParser::opSetMiterLimit},
+ {"MP", 1, {tchkName},
+ &PdfParser::opMarkPoint},
+ {"Q", 0, {tchkNone},
+ &PdfParser::opRestore},
+ {"RG", 3, {tchkNum, tchkNum, tchkNum},
+ &PdfParser::opSetStrokeRGBColor},
+ {"S", 0, {tchkNone},
+ &PdfParser::opStroke},
+ {"SC", -4, {tchkNum, tchkNum, tchkNum, tchkNum},
+ &PdfParser::opSetStrokeColor},
+ {"SCN", -33, {tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN},
+ &PdfParser::opSetStrokeColorN},
+ {"T*", 0, {tchkNone},
+ &PdfParser::opTextNextLine},
+ {"TD", 2, {tchkNum, tchkNum},
+ &PdfParser::opTextMoveSet},
+ {"TJ", 1, {tchkArray},
+ &PdfParser::opShowSpaceText},
+ {"TL", 1, {tchkNum},
+ &PdfParser::opSetTextLeading},
+ {"Tc", 1, {tchkNum},
+ &PdfParser::opSetCharSpacing},
+ {"Td", 2, {tchkNum, tchkNum},
+ &PdfParser::opTextMove},
+ {"Tf", 2, {tchkName, tchkNum},
+ &PdfParser::opSetFont},
+ {"Tj", 1, {tchkString},
+ &PdfParser::opShowText},
+ {"Tm", 6, {tchkNum, tchkNum, tchkNum, tchkNum,
+ tchkNum, tchkNum},
+ &PdfParser::opSetTextMatrix},
+ {"Tr", 1, {tchkInt},
+ &PdfParser::opSetTextRender},
+ {"Ts", 1, {tchkNum},
+ &PdfParser::opSetTextRise},
+ {"Tw", 1, {tchkNum},
+ &PdfParser::opSetWordSpacing},
+ {"Tz", 1, {tchkNum},
+ &PdfParser::opSetHorizScaling},
+ {"W", 0, {tchkNone},
+ &PdfParser::opClip},
+ {"W*", 0, {tchkNone},
+ &PdfParser::opEOClip},
+ {"b", 0, {tchkNone},
+ &PdfParser::opCloseFillStroke},
+ {"b*", 0, {tchkNone},
+ &PdfParser::opCloseEOFillStroke},
+ {"c", 6, {tchkNum, tchkNum, tchkNum, tchkNum,
+ tchkNum, tchkNum},
+ &PdfParser::opCurveTo},
+ {"cm", 6, {tchkNum, tchkNum, tchkNum, tchkNum,
+ tchkNum, tchkNum},
+ &PdfParser::opConcat},
+ {"cs", 1, {tchkName},
+ &PdfParser::opSetFillColorSpace},
+ {"d", 2, {tchkArray, tchkNum},
+ &PdfParser::opSetDash},
+ {"d0", 2, {tchkNum, tchkNum},
+ &PdfParser::opSetCharWidth},
+ {"d1", 6, {tchkNum, tchkNum, tchkNum, tchkNum,
+ tchkNum, tchkNum},
+ &PdfParser::opSetCacheDevice},
+ {"f", 0, {tchkNone},
+ &PdfParser::opFill},
+ {"f*", 0, {tchkNone},
+ &PdfParser::opEOFill},
+ {"g", 1, {tchkNum},
+ &PdfParser::opSetFillGray},
+ {"gs", 1, {tchkName},
+ &PdfParser::opSetExtGState},
+ {"h", 0, {tchkNone},
+ &PdfParser::opClosePath},
+ {"i", 1, {tchkNum},
+ &PdfParser::opSetFlat},
+ {"j", 1, {tchkInt},
+ &PdfParser::opSetLineJoin},
+ {"k", 4, {tchkNum, tchkNum, tchkNum, tchkNum},
+ &PdfParser::opSetFillCMYKColor},
+ {"l", 2, {tchkNum, tchkNum},
+ &PdfParser::opLineTo},
+ {"m", 2, {tchkNum, tchkNum},
+ &PdfParser::opMoveTo},
+ {"n", 0, {tchkNone},
+ &PdfParser::opEndPath},
+ {"q", 0, {tchkNone},
+ &PdfParser::opSave},
+ {"re", 4, {tchkNum, tchkNum, tchkNum, tchkNum},
+ &PdfParser::opRectangle},
+ {"rg", 3, {tchkNum, tchkNum, tchkNum},
+ &PdfParser::opSetFillRGBColor},
+ {"ri", 1, {tchkName},
+ &PdfParser::opSetRenderingIntent},
+ {"s", 0, {tchkNone},
+ &PdfParser::opCloseStroke},
+ {"sc", -4, {tchkNum, tchkNum, tchkNum, tchkNum},
+ &PdfParser::opSetFillColor},
+ {"scn", -33, {tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN, tchkSCN, tchkSCN, tchkSCN,
+ tchkSCN},
+ &PdfParser::opSetFillColorN},
+ {"sh", 1, {tchkName},
+ &PdfParser::opShFill},
+ {"v", 4, {tchkNum, tchkNum, tchkNum, tchkNum},
+ &PdfParser::opCurveTo1},
+ {"w", 1, {tchkNum},
+ &PdfParser::opSetLineWidth},
+ {"y", 4, {tchkNum, tchkNum, tchkNum, tchkNum},
+ &PdfParser::opCurveTo2}
+};
+
+#ifdef WIN32 // this works around a bug in the VC7 compiler
+# pragma optimize("",on)
+#endif
+
+#define numOps (sizeof(opTab) / sizeof(PdfOperator))
+
+//------------------------------------------------------------------------
+// PdfParser
+//------------------------------------------------------------------------
+
+PdfParser::PdfParser(XRef *xrefA, Inkscape::Extension::Internal::SvgBuilder *builderA,
+ int pageNum, Dict *resDict, PDFRectangle *cropBox,
+ GBool (*abortCheckCbkA)(void *data),
+ void *abortCheckCbkDataA) {
+ int i;
+
+ xref = xrefA;
+ subPage = gFalse;
+ printCommands = false;
+
+ // start the resource stack
+ res = new GfxResources(xref, resDict, NULL);
+
+ // initialize
+ state = new GfxState(72.0, 72.0, cropBox, 0, gFalse);
+ fontChanged = gFalse;
+ clip = clipNone;
+ ignoreUndef = 0;
+ operatorHistory = NULL;
+ builder = builderA;
+ builder->setDocumentSize(state->getPageWidth()*PX_PER_PT,
+ state->getPageHeight()*PX_PER_PT);
+
+ for (i = 0; i < 6; ++i) {
+ baseMatrix[i] = state->getCTM()[i];
+ }
+ // scale by PX_PER_PT and flip by the y axis
+ builder->setTransform(PX_PER_PT, 0.0, 0.0, -PX_PER_PT, 0.0,
+ state->getPageHeight()*PX_PER_PT);
+ formDepth = 0;
+ abortCheckCbk = abortCheckCbkA;
+ abortCheckCbkData = abortCheckCbkDataA;
+
+ // set crop box
+ if (cropBox) {
+ if (printCommands)
+ printf("cropBox: %f %f %f %f\n", cropBox->x1, cropBox->y1, cropBox->x2, cropBox->y2);
+ // do not clip if it's not needed
+ if (cropBox->x1 != 0.0 || cropBox->y1 != 0.0 ||
+ cropBox->x2 != state->getPageWidth() || cropBox->y2 != state->getPageHeight()) {
+
+ state->moveTo(cropBox->x1, cropBox->y1);
+ state->lineTo(cropBox->x2, cropBox->y1);
+ state->lineTo(cropBox->x2, cropBox->y2);
+ state->lineTo(cropBox->x1, cropBox->y2);
+ state->closePath();
+ state->clip();
+ builder->setClipPath(state);
+ state->clearPath();
+ }
+ }
+ pushOperator("startPage");
+}
+
+PdfParser::~PdfParser() {
+ while (state->hasSaves()) {
+ restoreState();
+ }
+ if (!subPage) {
+ //out->endPage();
+ }
+ while (res) {
+ popResources();
+ }
+ if (state) {
+ delete state;
+ }
+}
+
+void PdfParser::parse(Object *obj, GBool topLevel) {
+ Object obj2;
+ int i;
+
+ if (obj->isArray()) {
+ for (i = 0; i < obj->arrayGetLength(); ++i) {
+ obj->arrayGet(i, &obj2);
+ if (!obj2.isStream()) {
+ error(-1, "Weird page contents");
+ obj2.free();
+ return;
+ }
+ obj2.free();
+ }
+ } else if (!obj->isStream()) {
+ error(-1, "Weird page contents");
+ return;
+ }
+ parser = new Parser(xref, new Lexer(xref, obj), gFalse);
+ go(topLevel);
+ delete parser;
+ parser = NULL;
+}
+
+void PdfParser::go(GBool topLevel) {
+ Object obj;
+ Object args[maxArgs];
+ int numArgs, i;
+ int lastAbortCheck;
+
+ // scan a sequence of objects
+ updateLevel = lastAbortCheck = 0;
+ numArgs = 0;
+ parser->getObj(&obj);
+ while (!obj.isEOF()) {
+
+ // got a command - execute it
+ if (obj.isCmd()) {
+ if (printCommands) {
+ obj.print(stdout);
+ for (i = 0; i < numArgs; ++i) {
+ printf(" ");
+ args[i].print(stdout);
+ }
+ printf("\n");
+ fflush(stdout);
+ }
+
+ // Run the operation
+ execOp(&obj, args, numArgs);
+
+ obj.free();
+ for (i = 0; i < numArgs; ++i)
+ args[i].free();
+ numArgs = 0;
+
+ // check for an abort
+ if (abortCheckCbk) {
+ if (updateLevel - lastAbortCheck > 10) {
+ if ((*abortCheckCbk)(abortCheckCbkData)) {
+ break;
+ }
+ lastAbortCheck = updateLevel;
+ }
+ }
+
+ // got an argument - save it
+ } else if (numArgs < maxArgs) {
+ args[numArgs++] = obj;
+
+ // too many arguments - something is wrong
+ } else {
+ error(getPos(), "Too many args in content stream");
+ if (printCommands) {
+ printf("throwing away arg: ");
+ obj.print(stdout);
+ printf("\n");
+ fflush(stdout);
+ }
+ obj.free();
+ }
+
+ // grab the next object
+ parser->getObj(&obj);
+ }
+ obj.free();
+
+ // args at end with no command
+ if (numArgs > 0) {
+ error(getPos(), "Leftover args in content stream");
+ if (printCommands) {
+ printf("%d leftovers:", numArgs);
+ for (i = 0; i < numArgs; ++i) {
+ printf(" ");
+ args[i].print(stdout);
+ }
+ printf("\n");
+ fflush(stdout);
+ }
+ for (i = 0; i < numArgs; ++i)
+ args[i].free();
+ }
+}
+
+void PdfParser::pushOperator(const char *name) {
+ OpHistoryEntry *newEntry = new OpHistoryEntry;
+ newEntry->name = name;
+ newEntry->state = NULL;
+ newEntry->depth = (operatorHistory != NULL ? (operatorHistory->depth+1) : 0);
+ newEntry->next = operatorHistory;
+ operatorHistory = newEntry;
+
+ // Truncate list if needed
+ if (operatorHistory->depth > maxOperatorHistoryDepth) {
+ OpHistoryEntry *curr = operatorHistory;
+ OpHistoryEntry *prev = NULL;
+ while (curr && curr->next != NULL) {
+ curr->depth--;
+ prev = curr;
+ curr = curr->next;
+ }
+ if (prev) {
+ if (curr->state != NULL)
+ delete curr->state;
+ delete curr;
+ prev->next = NULL;
+ }
+ }
+}
+
+const char *PdfParser::getPreviousOperator() {
+ OpHistoryEntry *prev = NULL;
+ if (operatorHistory != NULL) {
+ prev = operatorHistory->next;
+ }
+ if (prev != NULL) {
+ return prev->name;
+ } else {
+ return "";
+ }
+}
+
+void PdfParser::execOp(Object *cmd, Object args[], int numArgs) {
+ PdfOperator *op;
+ char *name;
+ Object *argPtr;
+ int i;
+
+ // find operator
+ name = cmd->getCmd();
+ if (!(op = findOp(name))) {
+ if (ignoreUndef == 0)
+ error(getPos(), "Unknown operator '%s'", name);
+ return;
+ }
+
+ // type check args
+ argPtr = args;
+ if (op->numArgs >= 0) {
+ if (numArgs < op->numArgs) {
+ error(getPos(), "Too few (%d) args to '%s' operator", numArgs, name);
+ return;
+ }
+ if (numArgs > op->numArgs) {
+#if 0
+ error(getPos(), "Too many (%d) args to '%s' operator", numArgs, name);
+#endif
+ argPtr += numArgs - op->numArgs;
+ numArgs = op->numArgs;
+ }
+ } else {
+ if (numArgs > -op->numArgs) {
+ error(getPos(), "Too many (%d) args to '%s' operator",
+ numArgs, name);
+ return;
+ }
+ }
+ for (i = 0; i < numArgs; ++i) {
+ if (!checkArg(&argPtr[i], op->tchk[i])) {
+ error(getPos(), "Arg #%d to '%s' operator is wrong type (%s)",
+ i, name, argPtr[i].getTypeName());
+ return;
+ }
+ }
+
+ // add to history
+ pushOperator((char*)&op->name);
+
+ // do it
+ (this->*op->func)(argPtr, numArgs);
+}
+
+PdfOperator *PdfParser::findOp(char *name) {
+ int a, b, m, cmp;
+
+ a = -1;
+ b = numOps;
+ // invariant: opTab[a] < name < opTab[b]
+ while (b - a > 1) {
+ m = (a + b) / 2;
+ cmp = strcmp(opTab[m].name, name);
+ if (cmp < 0)
+ a = m;
+ else if (cmp > 0)
+ b = m;
+ else
+ a = b = m;
+ }
+ if (cmp != 0)
+ return NULL;
+ return &opTab[a];
+}
+
+GBool PdfParser::checkArg(Object *arg, TchkType type) {
+ switch (type) {
+ case tchkBool: return arg->isBool();
+ case tchkInt: return arg->isInt();
+ case tchkNum: return arg->isNum();
+ case tchkString: return arg->isString();
+ case tchkName: return arg->isName();
+ case tchkArray: return arg->isArray();
+ case tchkProps: return arg->isDict() || arg->isName();
+ case tchkSCN: return arg->isNum() || arg->isName();
+ case tchkNone: return gFalse;
+ }
+ return gFalse;
+}
+
+int PdfParser::getPos() {
+ return parser ? parser->getPos() : -1;
+}
+
+//------------------------------------------------------------------------
+// graphics state operators
+//------------------------------------------------------------------------
+
+void PdfParser::opSave(Object args[], int numArgs) {
+ saveState();
+}
+
+void PdfParser::opRestore(Object args[], int numArgs) {
+ restoreState();
+}
+
+void PdfParser::opConcat(Object args[], int numArgs) {
+ state->concatCTM(args[0].getNum(), args[1].getNum(),
+ args[2].getNum(), args[3].getNum(),
+ args[4].getNum(), args[5].getNum());
+ const char *prevOp = getPreviousOperator();
+ double a0 = args[0].getNum();
+ double a1 = args[1].getNum();
+ double a2 = args[2].getNum();
+ double a3 = args[3].getNum();
+ double a4 = args[4].getNum();
+ double a5 = args[5].getNum();
+ if (!strcmp(prevOp, "q")) {
+ builder->setTransform(a0, a1, a2, a3, a4, a5);
+ } else if (!strcmp(prevOp, "startPage")) {
+ // multiply it with the current baseMatrix
+ double c0 = baseMatrix[0]*a0 + baseMatrix[1]*a2;
+ double c1 = baseMatrix[0]*a1 + baseMatrix[1]*a3;
+ double c2 = baseMatrix[2]*a0 + baseMatrix[3]*a2;
+ double c3 = baseMatrix[2]*a1 + baseMatrix[3]*a3;
+ double c4 = baseMatrix[4]*a0 + baseMatrix[5]*a2 + a4;
+ double c5 = baseMatrix[4]*a1 + baseMatrix[5]*a3 + a5;
+ builder->setTransform(c0, c1, c2, c3, c4, c5);
+ } else {
+ builder->pushGroup();
+ builder->setTransform(a0, a1, a2, a3, a4, a5);
+ }
+ fontChanged = gTrue;
+}
+
+void PdfParser::opSetDash(Object args[], int numArgs) {
+ Array *a;
+ int length;
+ Object obj;
+ double *dash;
+ int i;
+
+ a = args[0].getArray();
+ length = a->getLength();
+ if (length == 0) {
+ dash = NULL;
+ } else {
+ dash = (double *)gmallocn(length, sizeof(double));
+ for (i = 0; i < length; ++i) {
+ dash[i] = a->get(i, &obj)->getNum();
+ obj.free();
+ }
+ }
+ state->setLineDash(dash, length, args[1].getNum());
+}
+
+void PdfParser::opSetFlat(Object args[], int numArgs) {
+ state->setFlatness((int)args[0].getNum());
+}
+
+void PdfParser::opSetLineJoin(Object args[], int numArgs) {
+ state->setLineJoin(args[0].getInt());
+}
+
+void PdfParser::opSetLineCap(Object args[], int numArgs) {
+ state->setLineCap(args[0].getInt());
+}
+
+void PdfParser::opSetMiterLimit(Object args[], int numArgs) {
+ state->setMiterLimit(args[0].getNum());
+}
+
+void PdfParser::opSetLineWidth(Object args[], int numArgs) {
+ state->setLineWidth(args[0].getNum());
+}
+
+void PdfParser::opSetExtGState(Object args[], int numArgs) {
+ Object obj1, obj2, obj3, obj4, obj5;
+ GfxBlendMode mode;
+ GBool haveFillOP;
+ Function *funcs[4];
+ GfxColor backdropColor;
+ GBool haveBackdropColor;
+ GfxColorSpace *blendingColorSpace;
+ GBool alpha, isolated, knockout;
+ int i;
+
+ if (!res->lookupGState(args[0].getName(), &obj1)) {
+ return;
+ }
+ if (!obj1.isDict()) {
+ error(getPos(), "ExtGState '%s' is wrong type", args[0].getName());
+ obj1.free();
+ return;
+ }
+ if (printCommands) {
+ printf(" gfx state dict: ");
+ obj1.print();
+ printf("\n");
+ }
+
+ // transparency support: blend mode, fill/stroke opacity
+ if (!obj1.dictLookup("BM", &obj2)->isNull()) {
+ if (state->parseBlendMode(&obj2, &mode)) {
+ state->setBlendMode(mode);
+ } else {
+ error(getPos(), "Invalid blend mode in ExtGState");
+ }
+ }
+ obj2.free();
+ if (obj1.dictLookup("ca", &obj2)->isNum()) {
+ state->setFillOpacity(obj2.getNum());
+ }
+ obj2.free();
+ if (obj1.dictLookup("CA", &obj2)->isNum()) {
+ state->setStrokeOpacity(obj2.getNum());
+ }
+ obj2.free();
+
+ // fill/stroke overprint
+ if ((haveFillOP = (obj1.dictLookup("op", &obj2)->isBool()))) {
+ state->setFillOverprint(obj2.getBool());
+ }
+ obj2.free();
+ if (obj1.dictLookup("OP", &obj2)->isBool()) {
+ state->setStrokeOverprint(obj2.getBool());
+ if (!haveFillOP) {
+ state->setFillOverprint(obj2.getBool());
+ }
+ }
+ obj2.free();
+
+ // stroke adjust
+ if (obj1.dictLookup("SA", &obj2)->isBool()) {
+ state->setStrokeAdjust(obj2.getBool());
+ }
+ obj2.free();
+
+ // transfer function
+ if (obj1.dictLookup("TR2", &obj2)->isNull()) {
+ obj2.free();
+ obj1.dictLookup("TR", &obj2);
+ }
+ if (obj2.isName("Default") ||
+ obj2.isName("Identity")) {
+ funcs[0] = funcs[1] = funcs[2] = funcs[3] = NULL;
+ state->setTransfer(funcs);
+ } else if (obj2.isArray() && obj2.arrayGetLength() == 4) {
+ for (i = 0; i < 4; ++i) {
+ obj2.arrayGet(i, &obj3);
+ funcs[i] = Function::parse(&obj3);
+ obj3.free();
+ if (!funcs[i]) {
+ break;
+ }
+ }
+ if (i == 4) {
+ state->setTransfer(funcs);
+ }
+ } else if (obj2.isName() || obj2.isDict() || obj2.isStream()) {
+ if ((funcs[0] = Function::parse(&obj2))) {
+ funcs[1] = funcs[2] = funcs[3] = NULL;
+ state->setTransfer(funcs);
+ }
+ } else if (!obj2.isNull()) {
+ error(getPos(), "Invalid transfer function in ExtGState");
+ }
+ obj2.free();
+
+ // soft mask
+ if (!obj1.dictLookup("SMask", &obj2)->isNull()) {
+ if (obj2.isName("None")) {
+ //out->clearSoftMask(state);
+ } else if (obj2.isDict()) {
+ if (obj2.dictLookup("S", &obj3)->isName("Alpha")) {
+ alpha = gTrue;
+ } else { // "Luminosity"
+ alpha = gFalse;
+ }
+ obj3.free();
+ funcs[0] = NULL;
+ if (!obj2.dictLookup("TR", &obj3)->isNull()) {
+ funcs[0] = Function::parse(&obj3);
+ if (funcs[0]->getInputSize() != 1 ||
+ funcs[0]->getOutputSize() != 1) {
+ error(getPos(),
+ "Invalid transfer function in soft mask in ExtGState");
+ delete funcs[0];
+ funcs[0] = NULL;
+ }
+ }
+ obj3.free();
+ if ((haveBackdropColor = obj2.dictLookup("BC", &obj3)->isArray())) {
+ for (i = 0; i < gfxColorMaxComps; ++i) {
+ backdropColor.c[i] = 0;
+ }
+ for (i = 0; i < obj3.arrayGetLength() && i < gfxColorMaxComps; ++i) {
+ obj3.arrayGet(i, &obj4);
+ if (obj4.isNum()) {
+ backdropColor.c[i] = dblToCol(obj4.getNum());
+ }
+ obj4.free();
+ }
+ }
+ obj3.free();
+ if (obj2.dictLookup("G", &obj3)->isStream()) {
+ if (obj3.streamGetDict()->lookup("Group", &obj4)->isDict()) {
+ blendingColorSpace = NULL;
+ isolated = knockout = gFalse;
+ if (!obj4.dictLookup("CS", &obj5)->isNull()) {
+ blendingColorSpace = GfxColorSpace::parse(&obj5);
+ }
+ obj5.free();
+ if (obj4.dictLookup("I", &obj5)->isBool()) {
+ isolated = obj5.getBool();
+ }
+ obj5.free();
+ if (obj4.dictLookup("K", &obj5)->isBool()) {
+ knockout = obj5.getBool();
+ }
+ obj5.free();
+ if (!haveBackdropColor) {
+ if (blendingColorSpace) {
+ blendingColorSpace->getDefaultColor(&backdropColor);
+ } else {
+ //~ need to get the parent or default color space (?)
+ for (i = 0; i < gfxColorMaxComps; ++i) {
+ backdropColor.c[i] = 0;
+ }
+ }
+ }
+ doSoftMask(&obj3, alpha, blendingColorSpace,
+ isolated, knockout, funcs[0], &backdropColor);
+ if (funcs[0]) {
+ delete funcs[0];
+ }
+ } else {
+ error(getPos(), "Invalid soft mask in ExtGState - missing group");
+ }
+ obj4.free();
+ } else {
+ error(getPos(), "Invalid soft mask in ExtGState - missing group");
+ }
+ obj3.free();
+ } else if (!obj2.isNull()) {
+ error(getPos(), "Invalid soft mask in ExtGState");
+ }
+ }
+ obj2.free();
+
+ obj1.free();
+}
+
+void PdfParser::doSoftMask(Object *str, GBool alpha,
+ GfxColorSpace *blendingColorSpace,
+ GBool isolated, GBool knockout,
+ Function *transferFunc, GfxColor *backdropColor) {
+ Dict *dict, *resDict;
+ double m[6], bbox[4];
+ Object obj1, obj2;
+ int i;
+
+ // check for excessive recursion
+ if (formDepth > 20) {
+ return;
+ }
+
+ // get stream dict
+ dict = str->streamGetDict();
+
+ // check form type
+ dict->lookup("FormType", &obj1);
+ if (!(obj1.isNull() || (obj1.isInt() && obj1.getInt() == 1))) {
+ error(getPos(), "Unknown form type");
+ }
+ obj1.free();
+
+ // get bounding box
+ dict->lookup("BBox", &obj1);
+ if (!obj1.isArray()) {
+ obj1.free();
+ error(getPos(), "Bad form bounding box");
+ return;
+ }
+ for (i = 0; i < 4; ++i) {
+ obj1.arrayGet(i, &obj2);
+ bbox[i] = obj2.getNum();
+ obj2.free();
+ }
+ obj1.free();
+
+ // get matrix
+ dict->lookup("Matrix", &obj1);
+ if (obj1.isArray()) {
+ for (i = 0; i < 6; ++i) {
+ obj1.arrayGet(i, &obj2);
+ m[i] = obj2.getNum();
+ obj2.free();
+ }
+ } else {
+ m[0] = 1; m[1] = 0;
+ m[2] = 0; m[3] = 1;
+ m[4] = 0; m[5] = 0;
+ }
+ obj1.free();
+
+ // get resources
+ dict->lookup("Resources", &obj1);
+ resDict = obj1.isDict() ? obj1.getDict() : (Dict *)NULL;
+
+ // draw it
+ ++formDepth;
+ doForm1(str, resDict, m, bbox, gTrue, gTrue,
+ blendingColorSpace, isolated, knockout,
+ alpha, transferFunc, backdropColor);
+ --formDepth;
+
+ if (blendingColorSpace) {
+ delete blendingColorSpace;
+ }
+ obj1.free();
+}
+
+void PdfParser::opSetRenderingIntent(Object args[], int numArgs) {
+}
+
+//------------------------------------------------------------------------
+// color operators
+//------------------------------------------------------------------------
+
+void PdfParser::opSetFillGray(Object args[], int numArgs) {
+ GfxColor color;
+
+ state->setFillPattern(NULL);
+ state->setFillColorSpace(new GfxDeviceGrayColorSpace());
+ color.c[0] = dblToCol(args[0].getNum());
+ state->setFillColor(&color);
+}
+
+void PdfParser::opSetStrokeGray(Object args[], int numArgs) {
+ GfxColor color;
+
+ state->setStrokePattern(NULL);
+ state->setStrokeColorSpace(new GfxDeviceGrayColorSpace());
+ color.c[0] = dblToCol(args[0].getNum());
+ state->setStrokeColor(&color);
+}
+
+void PdfParser::opSetFillCMYKColor(Object args[], int numArgs) {
+ GfxColor color;
+ int i;
+
+ state->setFillPattern(NULL);
+ state->setFillColorSpace(new GfxDeviceCMYKColorSpace());
+ for (i = 0; i < 4; ++i) {
+ color.c[i] = dblToCol(args[i].getNum());
+ }
+ state->setFillColor(&color);
+}
+
+void PdfParser::opSetStrokeCMYKColor(Object args[], int numArgs) {
+ GfxColor color;
+ int i;
+
+ state->setStrokePattern(NULL);
+ state->setStrokeColorSpace(new GfxDeviceCMYKColorSpace());
+ for (i = 0; i < 4; ++i) {
+ color.c[i] = dblToCol(args[i].getNum());
+ }
+ state->setStrokeColor(&color);
+}
+
+void PdfParser::opSetFillRGBColor(Object args[], int numArgs) {
+ GfxColor color;
+ int i;
+
+ state->setFillPattern(NULL);
+ state->setFillColorSpace(new GfxDeviceRGBColorSpace());
+ for (i = 0; i < 3; ++i) {
+ color.c[i] = dblToCol(args[i].getNum());
+ }
+ state->setFillColor(&color);
+}
+
+void PdfParser::opSetStrokeRGBColor(Object args[], int numArgs) {
+ GfxColor color;
+ int i;
+
+ state->setStrokePattern(NULL);
+ state->setStrokeColorSpace(new GfxDeviceRGBColorSpace());
+ for (i = 0; i < 3; ++i) {
+ color.c[i] = dblToCol(args[i].getNum());
+ }
+ state->setStrokeColor(&color);
+}
+
+void PdfParser::opSetFillColorSpace(Object args[], int numArgs) {
+ Object obj;
+ GfxColorSpace *colorSpace;
+ GfxColor color;
+
+ state->setFillPattern(NULL);
+ res->lookupColorSpace(args[0].getName(), &obj);
+ if (obj.isNull()) {
+ colorSpace = GfxColorSpace::parse(&args[0]);
+ } else {
+ colorSpace = GfxColorSpace::parse(&obj);
+ }
+ obj.free();
+ if (colorSpace) {
+ state->setFillColorSpace(colorSpace);
+ colorSpace->getDefaultColor(&color);
+ state->setFillColor(&color);
+ } else {
+ error(getPos(), "Bad color space (fill)");
+ }
+}
+
+void PdfParser::opSetStrokeColorSpace(Object args[], int numArgs) {
+ Object obj;
+ GfxColorSpace *colorSpace;
+ GfxColor color;
+
+ state->setStrokePattern(NULL);
+ res->lookupColorSpace(args[0].getName(), &obj);
+ if (obj.isNull()) {
+ colorSpace = GfxColorSpace::parse(&args[0]);
+ } else {
+ colorSpace = GfxColorSpace::parse(&obj);
+ }
+ obj.free();
+ if (colorSpace) {
+ state->setStrokeColorSpace(colorSpace);
+ colorSpace->getDefaultColor(&color);
+ state->setStrokeColor(&color);
+ } else {
+ error(getPos(), "Bad color space (stroke)");
+ }
+}
+
+void PdfParser::opSetFillColor(Object args[], int numArgs) {
+ GfxColor color;
+ int i;
+
+ if (numArgs != state->getFillColorSpace()->getNComps()) {
+ error(getPos(), "Incorrect number of arguments in 'sc' command");
+ return;
+ }
+ state->setFillPattern(NULL);
+ for (i = 0; i < numArgs; ++i) {
+ color.c[i] = dblToCol(args[i].getNum());
+ }
+ state->setFillColor(&color);
+}
+
+void PdfParser::opSetStrokeColor(Object args[], int numArgs) {
+ GfxColor color;
+ int i;
+
+ if (numArgs != state->getStrokeColorSpace()->getNComps()) {
+ error(getPos(), "Incorrect number of arguments in 'SC' command");
+ return;
+ }
+ state->setStrokePattern(NULL);
+ for (i = 0; i < numArgs; ++i) {
+ color.c[i] = dblToCol(args[i].getNum());
+ }
+ state->setStrokeColor(&color);
+}
+
+void PdfParser::opSetFillColorN(Object args[], int numArgs) {
+ GfxColor color;
+ GfxPattern *pattern;
+ int i;
+
+ if (state->getFillColorSpace()->getMode() == csPattern) {
+ if (numArgs > 1) {
+ if (!((GfxPatternColorSpace *)state->getFillColorSpace())->getUnder() ||
+ numArgs - 1 != ((GfxPatternColorSpace *)state->getFillColorSpace())
+ ->getUnder()->getNComps()) {
+ error(getPos(), "Incorrect number of arguments in 'scn' command");
+ return;
+ }
+ for (i = 0; i < numArgs - 1 && i < gfxColorMaxComps; ++i) {
+ if (args[i].isNum()) {
+ color.c[i] = dblToCol(args[i].getNum());
+ }
+ }
+ state->setFillColor(&color);
+ }
+ if (args[numArgs-1].isName() &&
+ (pattern = res->lookupPattern(args[numArgs-1].getName()))) {
+ state->setFillPattern(pattern);
+ }
+
+ } else {
+ if (numArgs != state->getFillColorSpace()->getNComps()) {
+ error(getPos(), "Incorrect number of arguments in 'scn' command");
+ return;
+ }
+ state->setFillPattern(NULL);
+ for (i = 0; i < numArgs && i < gfxColorMaxComps; ++i) {
+ if (args[i].isNum()) {
+ color.c[i] = dblToCol(args[i].getNum());
+ }
+ }
+ state->setFillColor(&color);
+ }
+}
+
+void PdfParser::opSetStrokeColorN(Object args[], int numArgs) {
+ GfxColor color;
+ GfxPattern *pattern;
+ int i;
+
+ if (state->getStrokeColorSpace()->getMode() == csPattern) {
+ if (numArgs > 1) {
+ if (!((GfxPatternColorSpace *)state->getStrokeColorSpace())
+ ->getUnder() ||
+ numArgs - 1 != ((GfxPatternColorSpace *)state->getStrokeColorSpace())
+ ->getUnder()->getNComps()) {
+ error(getPos(), "Incorrect number of arguments in 'SCN' command");
+ return;
+ }
+ for (i = 0; i < numArgs - 1 && i < gfxColorMaxComps; ++i) {
+ if (args[i].isNum()) {
+ color.c[i] = dblToCol(args[i].getNum());
+ }
+ }
+ state->setStrokeColor(&color);
+ }
+ if (args[numArgs-1].isName() &&
+ (pattern = res->lookupPattern(args[numArgs-1].getName()))) {
+ state->setStrokePattern(pattern);
+ }
+
+ } else {
+ if (numArgs != state->getStrokeColorSpace()->getNComps()) {
+ error(getPos(), "Incorrect number of arguments in 'SCN' command");
+ return;
+ }
+ state->setStrokePattern(NULL);
+ for (i = 0; i < numArgs && i < gfxColorMaxComps; ++i) {
+ if (args[i].isNum()) {
+ color.c[i] = dblToCol(args[i].getNum());
+ }
+ }
+ state->setStrokeColor(&color);
+ }
+}
+
+//------------------------------------------------------------------------
+// path segment operators
+//------------------------------------------------------------------------
+
+void PdfParser::opMoveTo(Object args[], int numArgs) {
+ state->moveTo(args[0].getNum(), args[1].getNum());
+}
+
+void PdfParser::opLineTo(Object args[], int numArgs) {
+ if (!state->isCurPt()) {
+ error(getPos(), "No current point in lineto");
+ return;
+ }
+ state->lineTo(args[0].getNum(), args[1].getNum());
+}
+
+void PdfParser::opCurveTo(Object args[], int numArgs) {
+ double x1, y1, x2, y2, x3, y3;
+
+ if (!state->isCurPt()) {
+ error(getPos(), "No current point in curveto");
+ return;
+ }
+ x1 = args[0].getNum();
+ y1 = args[1].getNum();
+ x2 = args[2].getNum();
+ y2 = args[3].getNum();
+ x3 = args[4].getNum();
+ y3 = args[5].getNum();
+ state->curveTo(x1, y1, x2, y2, x3, y3);
+}
+
+void PdfParser::opCurveTo1(Object args[], int numArgs) {
+ double x1, y1, x2, y2, x3, y3;
+
+ if (!state->isCurPt()) {
+ error(getPos(), "No current point in curveto1");
+ return;
+ }
+ x1 = state->getCurX();
+ y1 = state->getCurY();
+ x2 = args[0].getNum();
+ y2 = args[1].getNum();
+ x3 = args[2].getNum();
+ y3 = args[3].getNum();
+ state->curveTo(x1, y1, x2, y2, x3, y3);
+}
+
+void PdfParser::opCurveTo2(Object args[], int numArgs) {
+ double x1, y1, x2, y2, x3, y3;
+
+ if (!state->isCurPt()) {
+ error(getPos(), "No current point in curveto2");
+ return;
+ }
+ x1 = args[0].getNum();
+ y1 = args[1].getNum();
+ x2 = args[2].getNum();
+ y2 = args[3].getNum();
+ x3 = x2;
+ y3 = y2;
+ state->curveTo(x1, y1, x2, y2, x3, y3);
+}
+
+void PdfParser::opRectangle(Object args[], int numArgs) {
+ double x, y, w, h;
+
+ x = args[0].getNum();
+ y = args[1].getNum();
+ w = args[2].getNum();
+ h = args[3].getNum();
+ state->moveTo(x, y);
+ state->lineTo(x + w, y);
+ state->lineTo(x + w, y + h);
+ state->lineTo(x, y + h);
+ state->closePath();
+}
+
+void PdfParser::opClosePath(Object args[], int numArgs) {
+ if (!state->isCurPt()) {
+ error(getPos(), "No current point in closepath");
+ return;
+ }
+ state->closePath();
+}
+
+//------------------------------------------------------------------------
+// path painting operators
+//------------------------------------------------------------------------
+
+void PdfParser::opEndPath(Object args[], int numArgs) {
+ doEndPath();
+}
+
+void PdfParser::opStroke(Object args[], int numArgs) {
+ if (!state->isCurPt()) {
+ //error(getPos(), "No path in stroke");
+ return;
+ }
+ if (state->isPath()) {
+ if (state->getStrokeColorSpace()->getMode() == csPattern &&
+ !builder->isPatternTypeSupported(state->getStrokePattern())) {
+ doPatternStrokeFallback();
+ } else {
+ builder->addPath(state, false, true);
+ }
+ }
+ doEndPath();
+}
+
+void PdfParser::opCloseStroke(Object * /*args[]*/, int /*numArgs*/) {
+ if (!state->isCurPt()) {
+ //error(getPos(), "No path in closepath/stroke");
+ return;
+ }
+ state->closePath();
+ if (state->isPath()) {
+ if (state->getStrokeColorSpace()->getMode() == csPattern &&
+ !builder->isPatternTypeSupported(state->getStrokePattern())) {
+ doPatternStrokeFallback();
+ } else {
+ builder->addPath(state, false, true);
+ }
+ }
+ doEndPath();
+}
+
+void PdfParser::opFill(Object args[], int numArgs) {
+ if (!state->isCurPt()) {
+ //error(getPos(), "No path in fill");
+ return;
+ }
+ if (state->isPath()) {
+ if (state->getFillColorSpace()->getMode() == csPattern &&
+ !builder->isPatternTypeSupported(state->getFillPattern())) {
+ doPatternFillFallback(gFalse);
+ } else {
+ builder->addPath(state, true, false);
+ }
+ }
+ doEndPath();
+}
+
+void PdfParser::opEOFill(Object args[], int numArgs) {
+ if (!state->isCurPt()) {
+ //error(getPos(), "No path in eofill");
+ return;
+ }
+ if (state->isPath()) {
+ if (state->getFillColorSpace()->getMode() == csPattern &&
+ !builder->isPatternTypeSupported(state->getFillPattern())) {
+ doPatternFillFallback(gTrue);
+ } else {
+ builder->addPath(state, true, false, true);
+ }
+ }
+ doEndPath();
+}
+
+void PdfParser::opFillStroke(Object args[], int numArgs) {
+ if (!state->isCurPt()) {
+ //error(getPos(), "No path in fill/stroke");
+ return;
+ }
+ if (state->isPath()) {
+ doFillAndStroke(gFalse);
+ } else {
+ builder->addPath(state, true, true);
+ }
+ doEndPath();
+}
+
+void PdfParser::opCloseFillStroke(Object args[], int numArgs) {
+ if (!state->isCurPt()) {
+ //error(getPos(), "No path in closepath/fill/stroke");
+ return;
+ }
+ if (state->isPath()) {
+ state->closePath();
+ doFillAndStroke(gFalse);
+ }
+ doEndPath();
+}
+
+void PdfParser::opEOFillStroke(Object args[], int numArgs) {
+ if (!state->isCurPt()) {
+ //error(getPos(), "No path in eofill/stroke");
+ return;
+ }
+ if (state->isPath()) {
+ doFillAndStroke(gTrue);
+ }
+ doEndPath();
+}
+
+void PdfParser::opCloseEOFillStroke(Object args[], int numArgs) {
+ if (!state->isCurPt()) {
+ //error(getPos(), "No path in closepath/eofill/stroke");
+ return;
+ }
+ if (state->isPath()) {
+ state->closePath();
+ doFillAndStroke(gTrue);
+ }
+ doEndPath();
+}
+
+void PdfParser::doFillAndStroke(GBool eoFill) {
+ GBool fillOk = gTrue, strokeOk = gTrue;
+ if (state->getFillColorSpace()->getMode() == csPattern &&
+ !builder->isPatternTypeSupported(state->getFillPattern())) {
+ fillOk = gFalse;
+ }
+ if (state->getStrokeColorSpace()->getMode() == csPattern &&
+ !builder->isPatternTypeSupported(state->getStrokePattern())) {
+ strokeOk = gFalse;
+ }
+ if (fillOk && strokeOk) {
+ builder->addPath(state, true, true, eoFill);
+ } else {
+ doPatternFillFallback(eoFill);
+ doPatternStrokeFallback();
+ }
+}
+
+void PdfParser::doPatternFillFallback(GBool eoFill) {
+ GfxPattern *pattern;
+
+ if (!(pattern = state->getFillPattern())) {
+ return;
+ }
+ switch (pattern->getType()) {
+ case 1:
+ break;
+ case 2:
+ doShadingPatternFillFallback((GfxShadingPattern *)pattern, gFalse, eoFill);
+ break;
+ default:
+ error(getPos(), "Unimplemented pattern type (%d) in fill",
+ pattern->getType());
+ break;
+ }
+}
+
+void PdfParser::doPatternStrokeFallback() {
+ GfxPattern *pattern;
+
+ if (!(pattern = state->getStrokePattern())) {
+ return;
+ }
+ switch (pattern->getType()) {
+ case 1:
+ break;
+ case 2:
+ doShadingPatternFillFallback((GfxShadingPattern *)pattern, gTrue, gFalse);
+ break;
+ default:
+ error(getPos(), "Unimplemented pattern type (%d) in stroke",
+ pattern->getType());
+ break;
+ }
+}
+
+void PdfParser::doShadingPatternFillFallback(GfxShadingPattern *sPat,
+ GBool stroke, GBool eoFill) {
+ GfxShading *shading;
+ GfxPath *savedPath;
+ double *ctm, *btm, *ptm;
+ double m[6], ictm[6], m1[6];
+ double xMin, yMin, xMax, yMax;
+ double det;
+
+ shading = sPat->getShading();
+
+ // save current graphics state
+ savedPath = state->getPath()->copy();
+ saveState();
+
+ // clip to bbox
+ if (0 ){//shading->getHasBBox()) {
+ shading->getBBox(&xMin, &yMin, &xMax, &yMax);
+ state->moveTo(xMin, yMin);
+ state->lineTo(xMax, yMin);
+ state->lineTo(xMax, yMax);
+ state->lineTo(xMin, yMax);
+ state->closePath();
+ state->clip();
+ //builder->clip(state);
+ state->setPath(savedPath->copy());
+ }
+
+ // clip to current path
+ if (stroke) {
+ state->clipToStrokePath();
+ //out->clipToStrokePath(state);
+ } else {
+ state->clip();
+ if (eoFill) {
+ builder->clip(state, true);
+ } else {
+ builder->clip(state);
+ }
+ }
+
+ // set the color space
+ state->setFillColorSpace(shading->getColorSpace()->copy());
+
+ // background color fill
+ if (shading->getHasBackground()) {
+ state->setFillColor(shading->getBackground());
+ builder->addPath(state, true, false);
+ }
+ state->clearPath();
+
+ // construct a (pattern space) -> (current space) transform matrix
+ ctm = state->getCTM();
+ btm = baseMatrix;
+ ptm = sPat->getMatrix();
+ // iCTM = invert CTM
+ det = 1 / (ctm[0] * ctm[3] - ctm[1] * ctm[2]);
+ ictm[0] = ctm[3] * det;
+ ictm[1] = -ctm[1] * det;
+ ictm[2] = -ctm[2] * det;
+ ictm[3] = ctm[0] * det;
+ ictm[4] = (ctm[2] * ctm[5] - ctm[3] * ctm[4]) * det;
+ ictm[5] = (ctm[1] * ctm[4] - ctm[0] * ctm[5]) * det;
+ // m1 = PTM * BTM = PTM * base transform matrix
+ m1[0] = ptm[0] * btm[0] + ptm[1] * btm[2];
+ m1[1] = ptm[0] * btm[1] + ptm[1] * btm[3];
+ m1[2] = ptm[2] * btm[0] + ptm[3] * btm[2];
+ m1[3] = ptm[2] * btm[1] + ptm[3] * btm[3];
+ m1[4] = ptm[4] * btm[0] + ptm[5] * btm[2] + btm[4];
+ m1[5] = ptm[4] * btm[1] + ptm[5] * btm[3] + btm[5];
+ // m = m1 * iCTM = (PTM * BTM) * (iCTM)
+ m[0] = m1[0] * ictm[0] + m1[1] * ictm[2];
+ m[1] = m1[0] * ictm[1] + m1[1] * ictm[3];
+ m[2] = m1[2] * ictm[0] + m1[3] * ictm[2];
+ m[3] = m1[2] * ictm[1] + m1[3] * ictm[3];
+ m[4] = m1[4] * ictm[0] + m1[5] * ictm[2] + ictm[4];
+ m[5] = m1[4] * ictm[1] + m1[5] * ictm[3] + ictm[5];
+
+ // set the new matrix
+ state->concatCTM(m[0], m[1], m[2], m[3], m[4], m[5]);
+ builder->setTransform(m[0], m[1], m[2], m[3], m[4], m[5]);
+
+ // do shading type-specific operations
+ switch (shading->getType()) {
+ case 1:
+ doFunctionShFill((GfxFunctionShading *)shading);
+ break;
+ case 2:
+ case 3:
+ // no need to implement these
+ break;
+ case 4:
+ case 5:
+ doGouraudTriangleShFill((GfxGouraudTriangleShading *)shading);
+ break;
+ case 6:
+ case 7:
+ doPatchMeshShFill((GfxPatchMeshShading *)shading);
+ break;
+ }
+
+ // restore graphics state
+ restoreState();
+ state->setPath(savedPath);
+}
+
+void PdfParser::opShFill(Object args[], int numArgs) {
+ GfxShading *shading;
+ GfxPath *savedPath;
+ double xMin, yMin, xMax, yMax;
+
+ if (!(shading = res->lookupShading(args[0].getName()))) {
+ return;
+ }
+
+ // save current graphics state
+ savedPath = state->getPath()->copy();
+ saveState();
+
+ // clip to bbox
+ if (shading->getHasBBox()) {
+ shading->getBBox(&xMin, &yMin, &xMax, &yMax);
+ state->moveTo(xMin, yMin);
+ state->lineTo(xMax, yMin);
+ state->lineTo(xMax, yMax);
+ state->lineTo(xMin, yMax);
+ state->closePath();
+ state->clip();
+ builder->clip(state);
+ state->clearPath();
+ }
+
+ // set the color space
+ state->setFillColorSpace(shading->getColorSpace()->copy());
+
+ // do shading type-specific operations
+ switch (shading->getType()) {
+ case 1:
+ doFunctionShFill((GfxFunctionShading *)shading);
+ break;
+ case 2:
+ case 3:
+ // no need to implement these
+ break;
+ case 4:
+ case 5:
+ doGouraudTriangleShFill((GfxGouraudTriangleShading *)shading);
+ break;
+ case 6:
+ case 7:
+ doPatchMeshShFill((GfxPatchMeshShading *)shading);
+ break;
+ }
+
+ // restore graphics state
+ restoreState();
+ state->setPath(savedPath);
+
+ delete shading;
+}
+
+void PdfParser::doFunctionShFill(GfxFunctionShading *shading) {
+ double x0, y0, x1, y1;
+ GfxColor colors[4];
+
+ shading->getDomain(&x0, &y0, &x1, &y1);
+ shading->getColor(x0, y0, &colors[0]);
+ shading->getColor(x0, y1, &colors[1]);
+ shading->getColor(x1, y0, &colors[2]);
+ shading->getColor(x1, y1, &colors[3]);
+ doFunctionShFill1(shading, x0, y0, x1, y1, colors, 0);
+}
+
+void PdfParser::doFunctionShFill1(GfxFunctionShading *shading,
+ double x0, double y0,
+ double x1, double y1,
+ GfxColor *colors, int depth) {
+ GfxColor fillColor;
+ GfxColor color0M, color1M, colorM0, colorM1, colorMM;
+ GfxColor colors2[4];
+ double *matrix;
+ double xM, yM;
+ int nComps, i, j;
+
+ nComps = shading->getColorSpace()->getNComps();
+ matrix = shading->getMatrix();
+
+ // compare the four corner colors
+ for (i = 0; i < 4; ++i) {
+ for (j = 0; j < nComps; ++j) {
+ if (abs(colors[i].c[j] - colors[(i+1)&3].c[j]) > functionColorDelta) {
+ break;
+ }
+ }
+ if (j < nComps) {
+ break;
+ }
+ }
+
+ // center of the rectangle
+ xM = 0.5 * (x0 + x1);
+ yM = 0.5 * (y0 + y1);
+
+ // the four corner colors are close (or we hit the recursive limit)
+ // -- fill the rectangle; but require at least one subdivision
+ // (depth==0) to avoid problems when the four outer corners of the
+ // shaded region are the same color
+ if ((i == 4 && depth > 0) || depth == functionMaxDepth) {
+
+ // use the center color
+ shading->getColor(xM, yM, &fillColor);
+ state->setFillColor(&fillColor);
+
+ // fill the rectangle
+ state->moveTo(x0 * matrix[0] + y0 * matrix[2] + matrix[4],
+ x0 * matrix[1] + y0 * matrix[3] + matrix[5]);
+ state->lineTo(x1 * matrix[0] + y0 * matrix[2] + matrix[4],
+ x1 * matrix[1] + y0 * matrix[3] + matrix[5]);
+ state->lineTo(x1 * matrix[0] + y1 * matrix[2] + matrix[4],
+ x1 * matrix[1] + y1 * matrix[3] + matrix[5]);
+ state->lineTo(x0 * matrix[0] + y1 * matrix[2] + matrix[4],
+ x0 * matrix[1] + y1 * matrix[3] + matrix[5]);
+ state->closePath();
+ builder->addPath(state, true, false);
+ state->clearPath();
+
+ // the four corner colors are not close enough -- subdivide the
+ // rectangle
+ } else {
+
+ // colors[0] colorM0 colors[2]
+ // (x0,y0) (xM,y0) (x1,y0)
+ // +----------+----------+
+ // | | |
+ // | UL | UR |
+ // color0M | colorMM | color1M
+ // (x0,yM) +----------+----------+ (x1,yM)
+ // | (xM,yM) |
+ // | LL | LR |
+ // | | |
+ // +----------+----------+
+ // colors[1] colorM1 colors[3]
+ // (x0,y1) (xM,y1) (x1,y1)
+
+ shading->getColor(x0, yM, &color0M);
+ shading->getColor(x1, yM, &color1M);
+ shading->getColor(xM, y0, &colorM0);
+ shading->getColor(xM, y1, &colorM1);
+ shading->getColor(xM, yM, &colorMM);
+
+ // upper-left sub-rectangle
+ colors2[0] = colors[0];
+ colors2[1] = color0M;
+ colors2[2] = colorM0;
+ colors2[3] = colorMM;
+ doFunctionShFill1(shading, x0, y0, xM, yM, colors2, depth + 1);
+
+ // lower-left sub-rectangle
+ colors2[0] = color0M;
+ colors2[1] = colors[1];
+ colors2[2] = colorMM;
+ colors2[3] = colorM1;
+ doFunctionShFill1(shading, x0, yM, xM, y1, colors2, depth + 1);
+
+ // upper-right sub-rectangle
+ colors2[0] = colorM0;
+ colors2[1] = colorMM;
+ colors2[2] = colors[2];
+ colors2[3] = color1M;
+ doFunctionShFill1(shading, xM, y0, x1, yM, colors2, depth + 1);
+
+ // lower-right sub-rectangle
+ colors2[0] = colorMM;
+ colors2[1] = colorM1;
+ colors2[2] = color1M;
+ colors2[3] = colors[3];
+ doFunctionShFill1(shading, xM, yM, x1, y1, colors2, depth + 1);
+ }
+}
+
+void PdfParser::doGouraudTriangleShFill(GfxGouraudTriangleShading *shading) {
+ double x0, y0, x1, y1, x2, y2;
+ GfxColor color0, color1, color2;
+ int i;
+
+ for (i = 0; i < shading->getNTriangles(); ++i) {
+ shading->getTriangle(i, &x0, &y0, &color0,
+ &x1, &y1, &color1,
+ &x2, &y2, &color2);
+ gouraudFillTriangle(x0, y0, &color0, x1, y1, &color1, x2, y2, &color2,
+ shading->getColorSpace()->getNComps(), 0);
+ }
+}
+
+void PdfParser::gouraudFillTriangle(double x0, double y0, GfxColor *color0,
+ double x1, double y1, GfxColor *color1,
+ double x2, double y2, GfxColor *color2,
+ int nComps, int depth) {
+ double x01, y01, x12, y12, x20, y20;
+ GfxColor color01, color12, color20;
+ int i;
+
+ for (i = 0; i < nComps; ++i) {
+ if (abs(color0->c[i] - color1->c[i]) > gouraudColorDelta ||
+ abs(color1->c[i] - color2->c[i]) > gouraudColorDelta) {
+ break;
+ }
+ }
+ if (i == nComps || depth == gouraudMaxDepth) {
+ state->setFillColor(color0);
+ state->moveTo(x0, y0);
+ state->lineTo(x1, y1);
+ state->lineTo(x2, y2);
+ state->closePath();
+ builder->addPath(state, true, false);
+ state->clearPath();
+ } else {
+ x01 = 0.5 * (x0 + x1);
+ y01 = 0.5 * (y0 + y1);
+ x12 = 0.5 * (x1 + x2);
+ y12 = 0.5 * (y1 + y2);
+ x20 = 0.5 * (x2 + x0);
+ y20 = 0.5 * (y2 + y0);
+ //~ if the shading has a Function, this should interpolate on the
+ //~ function parameter, not on the color components
+ for (i = 0; i < nComps; ++i) {
+ color01.c[i] = (color0->c[i] + color1->c[i]) / 2;
+ color12.c[i] = (color1->c[i] + color2->c[i]) / 2;
+ color20.c[i] = (color2->c[i] + color0->c[i]) / 2;
+ }
+ gouraudFillTriangle(x0, y0, color0, x01, y01, &color01,
+ x20, y20, &color20, nComps, depth + 1);
+ gouraudFillTriangle(x01, y01, &color01, x1, y1, color1,
+ x12, y12, &color12, nComps, depth + 1);
+ gouraudFillTriangle(x01, y01, &color01, x12, y12, &color12,
+ x20, y20, &color20, nComps, depth + 1);
+ gouraudFillTriangle(x20, y20, &color20, x12, y12, &color12,
+ x2, y2, color2, nComps, depth + 1);
+ }
+}
+
+void PdfParser::doPatchMeshShFill(GfxPatchMeshShading *shading) {
+ int start, i;
+
+ if (shading->getNPatches() > 128) {
+ start = 3;
+ } else if (shading->getNPatches() > 64) {
+ start = 2;
+ } else if (shading->getNPatches() > 16) {
+ start = 1;
+ } else {
+ start = 0;
+ }
+ for (i = 0; i < shading->getNPatches(); ++i) {
+ fillPatch(shading->getPatch(i), shading->getColorSpace()->getNComps(),
+ start);
+ }
+}
+
+void PdfParser::fillPatch(GfxPatch *patch, int nComps, int depth) {
+ GfxPatch patch00, patch01, patch10, patch11;
+ double xx[4][8], yy[4][8];
+ double xxm, yym;
+ int i;
+
+ for (i = 0; i < nComps; ++i) {
+ if (abs(patch->color[0][0].c[i] - patch->color[0][1].c[i])
+ > patchColorDelta ||
+ abs(patch->color[0][1].c[i] - patch->color[1][1].c[i])
+ > patchColorDelta ||
+ abs(patch->color[1][1].c[i] - patch->color[1][0].c[i])
+ > patchColorDelta ||
+ abs(patch->color[1][0].c[i] - patch->color[0][0].c[i])
+ > patchColorDelta) {
+ break;
+ }
+ }
+ if (i == nComps || depth == patchMaxDepth) {
+ state->setFillColor(&patch->color[0][0]);
+ state->moveTo(patch->x[0][0], patch->y[0][0]);
+ state->curveTo(patch->x[0][1], patch->y[0][1],
+ patch->x[0][2], patch->y[0][2],
+ patch->x[0][3], patch->y[0][3]);
+ state->curveTo(patch->x[1][3], patch->y[1][3],
+ patch->x[2][3], patch->y[2][3],
+ patch->x[3][3], patch->y[3][3]);
+ state->curveTo(patch->x[3][2], patch->y[3][2],
+ patch->x[3][1], patch->y[3][1],
+ patch->x[3][0], patch->y[3][0]);
+ state->curveTo(patch->x[2][0], patch->y[2][0],
+ patch->x[1][0], patch->y[1][0],
+ patch->x[0][0], patch->y[0][0]);
+ state->closePath();
+ builder->addPath(state, true, false);
+ state->clearPath();
+ } else {
+ for (i = 0; i < 4; ++i) {
+ xx[i][0] = patch->x[i][0];
+ yy[i][0] = patch->y[i][0];
+ xx[i][1] = 0.5 * (patch->x[i][0] + patch->x[i][1]);
+ yy[i][1] = 0.5 * (patch->y[i][0] + patch->y[i][1]);
+ xxm = 0.5 * (patch->x[i][1] + patch->x[i][2]);
+ yym = 0.5 * (patch->y[i][1] + patch->y[i][2]);
+ xx[i][6] = 0.5 * (patch->x[i][2] + patch->x[i][3]);
+ yy[i][6] = 0.5 * (patch->y[i][2] + patch->y[i][3]);
+ xx[i][2] = 0.5 * (xx[i][1] + xxm);
+ yy[i][2] = 0.5 * (yy[i][1] + yym);
+ xx[i][5] = 0.5 * (xxm + xx[i][6]);
+ yy[i][5] = 0.5 * (yym + yy[i][6]);
+ xx[i][3] = xx[i][4] = 0.5 * (xx[i][2] + xx[i][5]);
+ yy[i][3] = yy[i][4] = 0.5 * (yy[i][2] + yy[i][5]);
+ xx[i][7] = patch->x[i][3];
+ yy[i][7] = patch->y[i][3];
+ }
+ for (i = 0; i < 4; ++i) {
+ patch00.x[0][i] = xx[0][i];
+ patch00.y[0][i] = yy[0][i];
+ patch00.x[1][i] = 0.5 * (xx[0][i] + xx[1][i]);
+ patch00.y[1][i] = 0.5 * (yy[0][i] + yy[1][i]);
+ xxm = 0.5 * (xx[1][i] + xx[2][i]);
+ yym = 0.5 * (yy[1][i] + yy[2][i]);
+ patch10.x[2][i] = 0.5 * (xx[2][i] + xx[3][i]);
+ patch10.y[2][i] = 0.5 * (yy[2][i] + yy[3][i]);
+ patch00.x[2][i] = 0.5 * (patch00.x[1][i] + xxm);
+ patch00.y[2][i] = 0.5 * (patch00.y[1][i] + yym);
+ patch10.x[1][i] = 0.5 * (xxm + patch10.x[2][i]);
+ patch10.y[1][i] = 0.5 * (yym + patch10.y[2][i]);
+ patch00.x[3][i] = 0.5 * (patch00.x[2][i] + patch10.x[1][i]);
+ patch00.y[3][i] = 0.5 * (patch00.y[2][i] + patch10.y[1][i]);
+ patch10.x[0][i] = patch00.x[3][i];
+ patch10.y[0][i] = patch00.y[3][i];
+ patch10.x[3][i] = xx[3][i];
+ patch10.y[3][i] = yy[3][i];
+ }
+ for (i = 4; i < 8; ++i) {
+ patch01.x[0][i-4] = xx[0][i];
+ patch01.y[0][i-4] = yy[0][i];
+ patch01.x[1][i-4] = 0.5 * (xx[0][i] + xx[1][i]);
+ patch01.y[1][i-4] = 0.5 * (yy[0][i] + yy[1][i]);
+ xxm = 0.5 * (xx[1][i] + xx[2][i]);
+ yym = 0.5 * (yy[1][i] + yy[2][i]);
+ patch11.x[2][i-4] = 0.5 * (xx[2][i] + xx[3][i]);
+ patch11.y[2][i-4] = 0.5 * (yy[2][i] + yy[3][i]);
+ patch01.x[2][i-4] = 0.5 * (patch01.x[1][i-4] + xxm);
+ patch01.y[2][i-4] = 0.5 * (patch01.y[1][i-4] + yym);
+ patch11.x[1][i-4] = 0.5 * (xxm + patch11.x[2][i-4]);
+ patch11.y[1][i-4] = 0.5 * (yym + patch11.y[2][i-4]);
+ patch01.x[3][i-4] = 0.5 * (patch01.x[2][i-4] + patch11.x[1][i-4]);
+ patch01.y[3][i-4] = 0.5 * (patch01.y[2][i-4] + patch11.y[1][i-4]);
+ patch11.x[0][i-4] = patch01.x[3][i-4];
+ patch11.y[0][i-4] = patch01.y[3][i-4];
+ patch11.x[3][i-4] = xx[3][i];
+ patch11.y[3][i-4] = yy[3][i];
+ }
+ //~ if the shading has a Function, this should interpolate on the
+ //~ function parameter, not on the color components
+ for (i = 0; i < nComps; ++i) {
+ patch00.color[0][0].c[i] = patch->color[0][0].c[i];
+ patch00.color[0][1].c[i] = (patch->color[0][0].c[i] +
+ patch->color[0][1].c[i]) / 2;
+ patch01.color[0][0].c[i] = patch00.color[0][1].c[i];
+ patch01.color[0][1].c[i] = patch->color[0][1].c[i];
+ patch01.color[1][1].c[i] = (patch->color[0][1].c[i] +
+ patch->color[1][1].c[i]) / 2;
+ patch11.color[0][1].c[i] = patch01.color[1][1].c[i];
+ patch11.color[1][1].c[i] = patch->color[1][1].c[i];
+ patch11.color[1][0].c[i] = (patch->color[1][1].c[i] +
+ patch->color[1][0].c[i]) / 2;
+ patch10.color[1][1].c[i] = patch11.color[1][0].c[i];
+ patch10.color[1][0].c[i] = patch->color[1][0].c[i];
+ patch10.color[0][0].c[i] = (patch->color[1][0].c[i] +
+ patch->color[0][0].c[i]) / 2;
+ patch00.color[1][0].c[i] = patch10.color[0][0].c[i];
+ patch00.color[1][1].c[i] = (patch00.color[1][0].c[i] +
+ patch01.color[1][1].c[i]) / 2;
+ patch01.color[1][0].c[i] = patch00.color[1][1].c[i];
+ patch11.color[0][0].c[i] = patch00.color[1][1].c[i];
+ patch10.color[0][1].c[i] = patch00.color[1][1].c[i];
+ }
+ fillPatch(&patch00, nComps, depth + 1);
+ fillPatch(&patch10, nComps, depth + 1);
+ fillPatch(&patch01, nComps, depth + 1);
+ fillPatch(&patch11, nComps, depth + 1);
+ }
+}
+
+void PdfParser::doEndPath() {
+ if (state->isCurPt() && clip != clipNone) {
+ state->clip();
+ if (clip == clipNormal) {
+ builder->clip(state);
+ } else {
+ builder->clip(state, true);
+ }
+ }
+ clip = clipNone;
+ state->clearPath();
+}
+
+//------------------------------------------------------------------------
+// path clipping operators
+//------------------------------------------------------------------------
+
+void PdfParser::opClip(Object args[], int numArgs) {
+ clip = clipNormal;
+}
+
+void PdfParser::opEOClip(Object args[], int numArgs) {
+ clip = clipEO;
+}
+
+//------------------------------------------------------------------------
+// text object operators
+//------------------------------------------------------------------------
+
+void PdfParser::opBeginText(Object args[], int numArgs) {
+ state->setTextMat(1, 0, 0, 1, 0, 0);
+ state->textMoveTo(0, 0);
+ fontChanged = gTrue;
+}
+
+void PdfParser::opEndText(Object args[], int numArgs) {
+ //NEEDED out->endTextObject(state);
+}
+
+//------------------------------------------------------------------------
+// text state operators
+//------------------------------------------------------------------------
+
+void PdfParser::opSetCharSpacing(Object args[], int numArgs) {
+ state->setCharSpace(args[0].getNum());
+}
+
+void PdfParser::opSetFont(Object args[], int numArgs) {
+ GfxFont *font;
+
+ if (!(font = res->lookupFont(args[0].getName()))) {
+ return;
+ }
+ if (printCommands) {
+ printf(" font: tag=%s name='%s' %g\n",
+ font->getTag()->getCString(),
+ font->getName() ? font->getName()->getCString() : "???",
+ args[1].getNum());
+ fflush(stdout);
+ }
+
+ font->incRefCnt();
+ state->setFont(font, args[1].getNum());
+ fontChanged = gTrue;
+}
+
+void PdfParser::opSetTextLeading(Object args[], int numArgs) {
+ state->setLeading(args[0].getNum());
+}
+
+void PdfParser::opSetTextRender(Object args[], int numArgs) {
+ state->setRender(args[0].getInt());
+}
+
+void PdfParser::opSetTextRise(Object args[], int numArgs) {
+ state->setRise(args[0].getNum());
+}
+
+void PdfParser::opSetWordSpacing(Object args[], int numArgs) {
+ state->setWordSpace(args[0].getNum());
+ //out->updateWordSpace(state);
+}
+
+void PdfParser::opSetHorizScaling(Object args[], int numArgs) {
+ state->setHorizScaling(args[0].getNum());
+ //out->updateHorizScaling(state);
+ fontChanged = gTrue;
+}
+
+//------------------------------------------------------------------------
+// text positioning operators
+//------------------------------------------------------------------------
+
+void PdfParser::opTextMove(Object args[], int numArgs) {
+ double tx, ty;
+
+ tx = state->getLineX() + args[0].getNum();
+ ty = state->getLineY() + args[1].getNum();
+ state->textMoveTo(tx, ty);
+}
+
+void PdfParser::opTextMoveSet(Object args[], int numArgs) {
+ double tx, ty;
+
+ tx = state->getLineX() + args[0].getNum();
+ ty = args[1].getNum();
+ state->setLeading(-ty);
+ ty += state->getLineY();
+ state->textMoveTo(tx, ty);
+}
+
+void PdfParser::opSetTextMatrix(Object args[], int numArgs) {
+ state->setTextMat(args[0].getNum(), args[1].getNum(),
+ args[2].getNum(), args[3].getNum(),
+ args[4].getNum(), args[5].getNum());
+ state->textMoveTo(0, 0);
+ fontChanged = gTrue;
+}
+
+void PdfParser::opTextNextLine(Object args[], int numArgs) {
+ double tx, ty;
+
+ tx = state->getLineX();
+ ty = state->getLineY() - state->getLeading();
+ state->textMoveTo(tx, ty);
+}
+
+//------------------------------------------------------------------------
+// text string operators
+//------------------------------------------------------------------------
+
+void PdfParser::opShowText(Object args[], int numArgs) {
+ if (!state->getFont()) {
+ error(getPos(), "No font in show");
+ return;
+ }
+ if (fontChanged) {
+ //NEEDED out->updateFont(state);
+ fontChanged = gFalse;
+ }
+ //out->beginStringOp(state);
+ doShowText(args[0].getString());
+ //out->endStringOp(state);
+}
+
+void PdfParser::opMoveShowText(Object args[], int numArgs) {
+ double tx, ty;
+
+ if (!state->getFont()) {
+ error(getPos(), "No font in move/show");
+ return;
+ }
+ if (fontChanged) {
+ //out->updateFont(state);
+ fontChanged = gFalse;
+ }
+ tx = state->getLineX();
+ ty = state->getLineY() - state->getLeading();
+ state->textMoveTo(tx, ty);
+ //out->beginStringOp(state);
+ doShowText(args[0].getString());
+ //out->endStringOp(state);
+}
+
+void PdfParser::opMoveSetShowText(Object args[], int numArgs) {
+ double tx, ty;
+
+ if (!state->getFont()) {
+ error(getPos(), "No font in move/set/show");
+ return;
+ }
+ if (fontChanged) {
+ //out->updateFont(state);
+ fontChanged = gFalse;
+ }
+ state->setWordSpace(args[0].getNum());
+ state->setCharSpace(args[1].getNum());
+ tx = state->getLineX();
+ ty = state->getLineY() - state->getLeading();
+ state->textMoveTo(tx, ty);
+ //out->beginStringOp(state);
+ doShowText(args[2].getString());
+ //out->endStringOp(state);
+}
+
+void PdfParser::opShowSpaceText(Object args[], int numArgs) {
+ Array *a;
+ Object obj;
+ int wMode;
+ int i;
+
+ if (!state->getFont()) {
+ error(getPos(), "No font in show/space");
+ return;
+ }
+ if (fontChanged) {
+ //out->updateFont(state);
+ fontChanged = gFalse;
+ }
+ //out->beginStringOp(state);
+ wMode = state->getFont()->getWMode();
+ a = args[0].getArray();
+ for (i = 0; i < a->getLength(); ++i) {
+ a->get(i, &obj);
+ if (obj.isNum()) {
+ // this uses the absolute value of the font size to match
+ // Acrobat's behavior
+ if (wMode) {
+ state->textShift(0, -obj.getNum() * 0.001 *
+ fabs(state->getFontSize()));
+ } else {
+ state->textShift(-obj.getNum() * 0.001 *
+ fabs(state->getFontSize()), 0);
+ }
+ } else if (obj.isString()) {
+ doShowText(obj.getString());
+ } else {
+ error(getPos(), "Element of show/space array must be number or string");
+ }
+ obj.free();
+ }
+ //out->endStringOp(state);
+}
+
+#include <glib-object.h>
+#include <UnicodeMap.h>
+
+static gchar *
+unicode_to_char (Unicode *unicode,
+ int len)
+{
+ static UnicodeMap *uMap = NULL;
+ if (uMap == NULL) {
+ GooString *enc = new GooString("UTF-8");
+ uMap = globalParams->getUnicodeMap(enc);
+ uMap->incRefCnt ();
+ delete enc;
+ }
+
+ GooString gstr;
+ gchar buf[8]; /* 8 is enough for mapping an unicode char to a string */
+ int i, n;
+
+ for (i = 0; i < len; ++i) {
+ n = uMap->mapUnicode(unicode[i], buf, sizeof(buf));
+ gstr.append(buf, n);
+ }
+
+ return g_strdup (gstr.getCString ());
+}
+
+
+void PdfParser::doShowText(GooString *s) {
+ GfxFont *font;
+ int wMode;
+ double riseX, riseY;
+ CharCode code;
+ Unicode u[8];
+ double x, y, dx, dy, dx2, dy2, curX, curY, tdx, tdy, lineX, lineY;
+ double originX, originY, tOriginX, tOriginY;
+ double oldCTM[6], newCTM[6];
+ double *mat;
+ Object charProc;
+ Dict *resDict;
+ Parser *oldParser;
+ char *p;
+ int len, n, uLen, nChars, nSpaces, i;
+
+ font = state->getFont();
+ wMode = font->getWMode();
+printf("doShowText() called\n");
+// if (out->useDrawChar()) {
+// out->beginString(state, s);
+// }
+
+ // handle a Type 3 char
+ if (font->getType() == fontType3 && 0) {//out->interpretType3Chars()) {
+ mat = state->getCTM();
+ for (i = 0; i < 6; ++i) {
+ oldCTM[i] = mat[i];
+ }
+ mat = state->getTextMat();
+ newCTM[0] = mat[0] * oldCTM[0] + mat[1] * oldCTM[2];
+ newCTM[1] = mat[0] * oldCTM[1] + mat[1] * oldCTM[3];
+ newCTM[2] = mat[2] * oldCTM[0] + mat[3] * oldCTM[2];
+ newCTM[3] = mat[2] * oldCTM[1] + mat[3] * oldCTM[3];
+ mat = font->getFontMatrix();
+ newCTM[0] = mat[0] * newCTM[0] + mat[1] * newCTM[2];
+ newCTM[1] = mat[0] * newCTM[1] + mat[1] * newCTM[3];
+ newCTM[2] = mat[2] * newCTM[0] + mat[3] * newCTM[2];
+ newCTM[3] = mat[2] * newCTM[1] + mat[3] * newCTM[3];
+ newCTM[0] *= state->getFontSize();
+ newCTM[1] *= state->getFontSize();
+ newCTM[2] *= state->getFontSize();
+ newCTM[3] *= state->getFontSize();
+ newCTM[0] *= state->getHorizScaling();
+ newCTM[2] *= state->getHorizScaling();
+ state->textTransformDelta(0, state->getRise(), &riseX, &riseY);
+ curX = state->getCurX();
+ curY = state->getCurY();
+ lineX = state->getLineX();
+ lineY = state->getLineY();
+ oldParser = parser;
+ p = s->getCString();
+ len = s->getLength();
+ while (len > 0) {
+ n = font->getNextChar(p, len, &code,
+ u, (int)(sizeof(u) / sizeof(Unicode)), &uLen,
+ &dx, &dy, &originX, &originY);
+ dx = dx * state->getFontSize() + state->getCharSpace();
+ if (n == 1 && *p == ' ') {
+ dx += state->getWordSpace();
+ }
+ dx *= state->getHorizScaling();
+ dy *= state->getFontSize();
+ state->textTransformDelta(dx, dy, &tdx, &tdy);
+ state->transform(curX + riseX, curY + riseY, &x, &y);
+ saveState();
+ state->setCTM(newCTM[0], newCTM[1], newCTM[2], newCTM[3], x, y);
+ //~ the CTM concat values here are wrong (but never used)
+ //out->updateCTM(state, 1, 0, 0, 1, 0, 0);
+ if (0){ /*!out->beginType3Char(state, curX + riseX, curY + riseY, tdx, tdy,
+ code, u, uLen)) {*/
+ ((Gfx8BitFont *)font)->getCharProc(code, &charProc);
+ if ((resDict = ((Gfx8BitFont *)font)->getResources())) {
+ pushResources(resDict);
+ }
+ if (charProc.isStream()) {
+ //parse(&charProc, gFalse); // TODO: parse into SVG font
+ } else {
+ error(getPos(), "Missing or bad Type3 CharProc entry");
+ }
+ //out->endType3Char(state);
+ if (resDict) {
+ popResources();
+ }
+ charProc.free();
+ }
+ restoreState();
+ // GfxState::restore() does *not* restore the current position,
+ // so we deal with it here using (curX, curY) and (lineX, lineY)
+ curX += tdx;
+ curY += tdy;
+ state->moveTo(curX, curY);
+ state->textSetPos(lineX, lineY);
+ p += n;
+ len -= n;
+ }
+ parser = oldParser;
+
+ } else if (1){//out->useDrawChar()) {
+ state->textTransformDelta(0, state->getRise(), &riseX, &riseY);
+ p = s->getCString();
+ len = s->getLength();
+ while (len > 0) {
+ n = font->getNextChar(p, len, &code,
+ u, (int)(sizeof(u) / sizeof(Unicode)), &uLen,
+ &dx, &dy, &originX, &originY);
+
+ if (uLen > 0) {
+ gchar *sc = unicode_to_char((Unicode*)&u, uLen);
+ printf("%s", sc);
+ g_free(sc);
+ }
+ if (wMode) {
+ dx *= state->getFontSize();
+ dy = dy * state->getFontSize() + state->getCharSpace();
+ if (n == 1 && *p == ' ') {
+ dy += state->getWordSpace();
+ }
+ } else {
+ dx = dx * state->getFontSize() + state->getCharSpace();
+ if (n == 1 && *p == ' ') {
+ dx += state->getWordSpace();
+ }
+ dx *= state->getHorizScaling();
+ dy *= state->getFontSize();
+ }
+ state->textTransformDelta(dx, dy, &tdx, &tdy);
+ originX *= state->getFontSize();
+ originY *= state->getFontSize();
+ state->textTransformDelta(originX, originY, &tOriginX, &tOriginY);
+// out->drawChar(state, state->getCurX() + riseX, state->getCurY() + riseY,
+// tdx, tdy, tOriginX, tOriginY, code, n, u, uLen);
+ state->shift(tdx, tdy);
+ p += n;
+ len -= n;
+ }
+
+ } else {
+ dx = dy = 0;
+ p = s->getCString();
+ len = s->getLength();
+ nChars = nSpaces = 0;
+ while (len > 0) {
+ n = font->getNextChar(p, len, &code,
+ u, (int)(sizeof(u) / sizeof(Unicode)), &uLen,
+ &dx2, &dy2, &originX, &originY);
+ dx += dx2;
+ dy += dy2;
+ if (n == 1 && *p == ' ') {
+ ++nSpaces;
+ }
+ ++nChars;
+ p += n;
+ len -= n;
+ }
+ if (wMode) {
+ dx *= state->getFontSize();
+ dy = dy * state->getFontSize()
+ + nChars * state->getCharSpace()
+ + nSpaces * state->getWordSpace();
+ } else {
+ dx = dx * state->getFontSize()
+ + nChars * state->getCharSpace()
+ + nSpaces * state->getWordSpace();
+ dx *= state->getHorizScaling();
+ dy *= state->getFontSize();
+ }
+ state->textTransformDelta(dx, dy, &tdx, &tdy);
+// out->drawString(state, s);
+ state->shift(tdx, tdy);
+ }
+
+// if (out->useDrawChar()) {
+// out->endString(state);
+// }
+
+ updateLevel += 10 * s->getLength();
+}
+
+//------------------------------------------------------------------------
+// XObject operators
+//------------------------------------------------------------------------
+
+void PdfParser::opXObject(Object args[], int numArgs) {
+ char *name;
+ Object obj1, obj2, obj3, refObj;
+
+ name = args[0].getName();
+ if (!res->lookupXObject(name, &obj1)) {
+ return;
+ }
+ if (!obj1.isStream()) {
+ error(getPos(), "XObject '%s' is wrong type", name);
+ obj1.free();
+ return;
+ }
+ obj1.streamGetDict()->lookup("Subtype", &obj2);
+ if (obj2.isName("Image")) {
+ res->lookupXObjectNF(name, &refObj);
+ doImage(&refObj, obj1.getStream(), gFalse);
+ refObj.free();
+ } else if (obj2.isName("Form")) {
+ doForm(&obj1);
+ } else if (obj2.isName("PS")) {
+ obj1.streamGetDict()->lookup("Level1", &obj3);
+/* out->psXObject(obj1.getStream(),
+ obj3.isStream() ? obj3.getStream() : (Stream *)NULL);*/
+ } else if (obj2.isName()) {
+ error(getPos(), "Unknown XObject subtype '%s'", obj2.getName());
+ } else {
+ error(getPos(), "XObject subtype is missing or wrong type");
+ }
+ obj2.free();
+ obj1.free();
+}
+
+void PdfParser::doImage(Object *ref, Stream *str, GBool inlineImg) {
+ Dict *dict, *maskDict;
+ int width, height;
+ int bits, maskBits;
+ StreamColorSpaceMode csMode;
+ GBool mask;
+ GBool invert;
+ GfxColorSpace *colorSpace, *maskColorSpace;
+ GfxImageColorMap *colorMap, *maskColorMap;
+ Object maskObj, smaskObj;
+ GBool haveColorKeyMask, haveExplicitMask, haveSoftMask;
+ int maskColors[2*gfxColorMaxComps];
+ int maskWidth, maskHeight;
+ GBool maskInvert;
+ Stream *maskStr;
+ Object obj1, obj2;
+ int i;
+
+ // get info from the stream
+ bits = 0;
+ csMode = streamCSNone;
+ str->getImageParams(&bits, &csMode);
+
+ // get stream dict
+ dict = str->getDict();
+
+ // get size
+ dict->lookup("Width", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ dict->lookup("W", &obj1);
+ }
+ if (obj1.isInt())
+ width = obj1.getInt();
+ else if (obj1.isReal())
+ width = (int)obj1.getReal();
+ else
+ goto err2;
+ obj1.free();
+ dict->lookup("Height", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ dict->lookup("H", &obj1);
+ }
+ if (obj1.isInt())
+ height = obj1.getInt();
+ else if (obj1.isReal())
+ height = (int)obj1.getReal();
+ else
+ goto err2;
+ obj1.free();
+
+ // image or mask?
+ dict->lookup("ImageMask", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ dict->lookup("IM", &obj1);
+ }
+ mask = gFalse;
+ if (obj1.isBool())
+ mask = obj1.getBool();
+ else if (!obj1.isNull())
+ goto err2;
+ obj1.free();
+
+ // bit depth
+ if (bits == 0) {
+ dict->lookup("BitsPerComponent", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ dict->lookup("BPC", &obj1);
+ }
+ if (obj1.isInt()) {
+ bits = obj1.getInt();
+ } else if (mask) {
+ bits = 1;
+ } else {
+ goto err2;
+ }
+ obj1.free();
+ }
+
+ // display a mask
+ if (mask) {
+
+ // check for inverted mask
+ if (bits != 1)
+ goto err1;
+ invert = gFalse;
+ dict->lookup("Decode", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ dict->lookup("D", &obj1);
+ }
+ if (obj1.isArray()) {
+ obj1.arrayGet(0, &obj2);
+ if (obj2.isInt() && obj2.getInt() == 1)
+ invert = gTrue;
+ obj2.free();
+ } else if (!obj1.isNull()) {
+ goto err2;
+ }
+ obj1.free();
+
+ // draw it
+ //out->drawImageMask(state, ref, str, width, height, invert, inlineImg);
+
+ } else {
+
+ // get color space and color map
+ dict->lookup("ColorSpace", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ dict->lookup("CS", &obj1);
+ }
+ if (obj1.isName()) {
+ res->lookupColorSpace(obj1.getName(), &obj2);
+ if (!obj2.isNull()) {
+ obj1.free();
+ obj1 = obj2;
+ } else {
+ obj2.free();
+ }
+ }
+ if (!obj1.isNull()) {
+ colorSpace = GfxColorSpace::parse(&obj1);
+ } else if (csMode == streamCSDeviceGray) {
+ colorSpace = new GfxDeviceGrayColorSpace();
+ } else if (csMode == streamCSDeviceRGB) {
+ colorSpace = new GfxDeviceRGBColorSpace();
+ } else if (csMode == streamCSDeviceCMYK) {
+ colorSpace = new GfxDeviceCMYKColorSpace();
+ } else {
+ colorSpace = NULL;
+ }
+ obj1.free();
+ if (!colorSpace) {
+ goto err1;
+ }
+ dict->lookup("Decode", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ dict->lookup("D", &obj1);
+ }
+ colorMap = new GfxImageColorMap(bits, &obj1, colorSpace);
+ obj1.free();
+ if (!colorMap->isOk()) {
+ delete colorMap;
+ goto err1;
+ }
+
+ // get the mask
+ haveColorKeyMask = haveExplicitMask = haveSoftMask = gFalse;
+ maskStr = NULL; // make gcc happy
+ maskWidth = maskHeight = 0; // make gcc happy
+ maskInvert = gFalse; // make gcc happy
+ maskColorMap = NULL; // make gcc happy
+ dict->lookup("Mask", &maskObj);
+ dict->lookup("SMask", &smaskObj);
+ if (smaskObj.isStream()) {
+ // soft mask
+ if (inlineImg) {
+ goto err1;
+ }
+ maskStr = smaskObj.getStream();
+ maskDict = smaskObj.streamGetDict();
+ maskDict->lookup("Width", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ maskDict->lookup("W", &obj1);
+ }
+ if (!obj1.isInt()) {
+ goto err2;
+ }
+ maskWidth = obj1.getInt();
+ obj1.free();
+ maskDict->lookup("Height", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ maskDict->lookup("H", &obj1);
+ }
+ if (!obj1.isInt()) {
+ goto err2;
+ }
+ maskHeight = obj1.getInt();
+ obj1.free();
+ maskDict->lookup("BitsPerComponent", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ maskDict->lookup("BPC", &obj1);
+ }
+ if (!obj1.isInt()) {
+ goto err2;
+ }
+ maskBits = obj1.getInt();
+ obj1.free();
+ maskDict->lookup("ColorSpace", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ maskDict->lookup("CS", &obj1);
+ }
+ if (obj1.isName()) {
+ res->lookupColorSpace(obj1.getName(), &obj2);
+ if (!obj2.isNull()) {
+ obj1.free();
+ obj1 = obj2;
+ } else {
+ obj2.free();
+ }
+ }
+ maskColorSpace = GfxColorSpace::parse(&obj1);
+ obj1.free();
+ if (!maskColorSpace || maskColorSpace->getMode() != csDeviceGray) {
+ goto err1;
+ }
+ maskDict->lookup("Decode", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ maskDict->lookup("D", &obj1);
+ }
+ maskColorMap = new GfxImageColorMap(maskBits, &obj1, maskColorSpace);
+ obj1.free();
+ if (!maskColorMap->isOk()) {
+ delete maskColorMap;
+ goto err1;
+ }
+ //~ handle the Matte entry
+ haveSoftMask = gTrue;
+ } else if (maskObj.isArray()) {
+ // color key mask
+ for (i = 0;
+ i < maskObj.arrayGetLength() && i < 2*gfxColorMaxComps;
+ ++i) {
+ maskObj.arrayGet(i, &obj1);
+ maskColors[i] = obj1.getInt();
+ obj1.free();
+ }
+ haveColorKeyMask = gTrue;
+ } else if (maskObj.isStream()) {
+ // explicit mask
+ if (inlineImg) {
+ goto err1;
+ }
+ maskStr = maskObj.getStream();
+ maskDict = maskObj.streamGetDict();
+ maskDict->lookup("Width", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ maskDict->lookup("W", &obj1);
+ }
+ if (!obj1.isInt()) {
+ goto err2;
+ }
+ maskWidth = obj1.getInt();
+ obj1.free();
+ maskDict->lookup("Height", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ maskDict->lookup("H", &obj1);
+ }
+ if (!obj1.isInt()) {
+ goto err2;
+ }
+ maskHeight = obj1.getInt();
+ obj1.free();
+ maskDict->lookup("ImageMask", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ maskDict->lookup("IM", &obj1);
+ }
+ if (!obj1.isBool() || !obj1.getBool()) {
+ goto err2;
+ }
+ obj1.free();
+ maskInvert = gFalse;
+ maskDict->lookup("Decode", &obj1);
+ if (obj1.isNull()) {
+ obj1.free();
+ maskDict->lookup("D", &obj1);
+ }
+ if (obj1.isArray()) {
+ obj1.arrayGet(0, &obj2);
+ if (obj2.isInt() && obj2.getInt() == 1) {
+ maskInvert = gTrue;
+ }
+ obj2.free();
+ } else if (!obj1.isNull()) {
+ goto err2;
+ }
+ obj1.free();
+ haveExplicitMask = gTrue;
+ }
+
+ // draw it
+ if (haveSoftMask) {
+/* out->drawSoftMaskedImage(state, ref, str, width, height, colorMap,
+ maskStr, maskWidth, maskHeight, maskColorMap);*/
+ delete maskColorMap;
+ } else if (haveExplicitMask) {
+/* out->drawMaskedImage(state, ref, str, width, height, colorMap,
+ maskStr, maskWidth, maskHeight, maskInvert);*/
+ } else {
+/* out->drawImage(state, ref, str, width, height, colorMap,
+ haveColorKeyMask ? maskColors : (int *)NULL, inlineImg);*/
+ }
+ delete colorMap;
+
+ maskObj.free();
+ smaskObj.free();
+ }
+
+ if ((i = width * height) > 1000) {
+ i = 1000;
+ }
+ updateLevel += i;
+
+ return;
+
+ err2:
+ obj1.free();
+ err1:
+ error(getPos(), "Bad image parameters");
+}
+
+void PdfParser::doForm(Object *str) {
+ Dict *dict;
+ GBool transpGroup, isolated, knockout;
+ GfxColorSpace *blendingColorSpace;
+ Object matrixObj, bboxObj;
+ double m[6], bbox[4];
+ Object resObj;
+ Dict *resDict;
+ Object obj1, obj2, obj3;
+ int i;
+
+ // check for excessive recursion
+ if (formDepth > 20) {
+ return;
+ }
+
+ // get stream dict
+ dict = str->streamGetDict();
+
+ // check form type
+ dict->lookup("FormType", &obj1);
+ if (!(obj1.isNull() || (obj1.isInt() && obj1.getInt() == 1))) {
+ error(getPos(), "Unknown form type");
+ }
+ obj1.free();
+
+ // get bounding box
+ dict->lookup("BBox", &bboxObj);
+ if (!bboxObj.isArray()) {
+ bboxObj.free();
+ error(getPos(), "Bad form bounding box");
+ return;
+ }
+ for (i = 0; i < 4; ++i) {
+ bboxObj.arrayGet(i, &obj1);
+ bbox[i] = obj1.getNum();
+ obj1.free();
+ }
+ bboxObj.free();
+
+ // get matrix
+ dict->lookup("Matrix", &matrixObj);
+ if (matrixObj.isArray()) {
+ for (i = 0; i < 6; ++i) {
+ matrixObj.arrayGet(i, &obj1);
+ m[i] = obj1.getNum();
+ obj1.free();
+ }
+ } else {
+ m[0] = 1; m[1] = 0;
+ m[2] = 0; m[3] = 1;
+ m[4] = 0; m[5] = 0;
+ }
+ matrixObj.free();
+
+ // get resources
+ dict->lookup("Resources", &resObj);
+ resDict = resObj.isDict() ? resObj.getDict() : (Dict *)NULL;
+
+ // check for a transparency group
+ transpGroup = isolated = knockout = gFalse;
+ blendingColorSpace = NULL;
+ if (dict->lookup("Group", &obj1)->isDict()) {
+ if (obj1.dictLookup("S", &obj2)->isName("Transparency")) {
+ transpGroup = gTrue;
+ if (!obj1.dictLookup("CS", &obj3)->isNull()) {
+ blendingColorSpace = GfxColorSpace::parse(&obj3);
+ }
+ obj3.free();
+ if (obj1.dictLookup("I", &obj3)->isBool()) {
+ isolated = obj3.getBool();
+ }
+ obj3.free();
+ if (obj1.dictLookup("K", &obj3)->isBool()) {
+ knockout = obj3.getBool();
+ }
+ obj3.free();
+ }
+ obj2.free();
+ }
+ obj1.free();
+
+ // draw it
+ ++formDepth;
+ doForm1(str, resDict, m, bbox,
+ transpGroup, gFalse, blendingColorSpace, isolated, knockout);
+ --formDepth;
+
+ if (blendingColorSpace) {
+ delete blendingColorSpace;
+ }
+ resObj.free();
+}
+
+void PdfParser::doForm1(Object *str, Dict *resDict, double *matrix, double *bbox,
+ GBool transpGroup, GBool softMask,
+ GfxColorSpace *blendingColorSpace,
+ GBool isolated, GBool knockout,
+ GBool alpha, Function *transferFunc,
+ GfxColor *backdropColor) {
+ Parser *oldParser;
+ double oldBaseMatrix[6];
+ int i;
+
+ // push new resources on stack
+ pushResources(resDict);
+
+ // save current graphics state
+ saveState();
+
+ // kill any pre-existing path
+ state->clearPath();
+
+ // save current parser
+ oldParser = parser;
+
+ // set form transformation matrix
+ state->concatCTM(matrix[0], matrix[1], matrix[2],
+ matrix[3], matrix[4], matrix[5]);
+ builder->setTransform(matrix[0], matrix[1], matrix[2],
+ matrix[3], matrix[4], matrix[5]);
+
+ // set form bounding box
+ state->moveTo(bbox[0], bbox[1]);
+ state->lineTo(bbox[2], bbox[1]);
+ state->lineTo(bbox[2], bbox[3]);
+ state->lineTo(bbox[0], bbox[3]);
+ state->closePath();
+ state->clip();
+ builder->clip(state);
+ state->clearPath();
+
+ if (softMask || transpGroup) {
+ if (state->getBlendMode() != gfxBlendNormal) {
+ state->setBlendMode(gfxBlendNormal);
+ }
+ if (state->getFillOpacity() != 1) {
+ state->setFillOpacity(1);
+ }
+ if (state->getStrokeOpacity() != 1) {
+ state->setStrokeOpacity(1);
+ }
+ //out->clearSoftMask(state);
+ //out->beginTransparencyGroup(state, bbox, blendingColorSpace,
+ // isolated, knockout, softMask);
+ }
+
+ // set new base matrix
+ for (i = 0; i < 6; ++i) {
+ oldBaseMatrix[i] = baseMatrix[i];
+ baseMatrix[i] = state->getCTM()[i];
+ }
+
+ // draw the form
+ parse(str, gFalse);
+
+ if (softMask || transpGroup) {
+ //out->endTransparencyGroup(state);
+ }
+
+ // restore base matrix
+ for (i = 0; i < 6; ++i) {
+ baseMatrix[i] = oldBaseMatrix[i];
+ }
+
+ // restore parser
+ parser = oldParser;
+
+ // restore graphics state
+ restoreState();
+
+ // pop resource stack
+ popResources();
+
+ if (softMask) {
+ //out->setSoftMask(state, bbox, alpha, transferFunc, backdropColor);
+ } else if (transpGroup) {
+ //out->paintTransparencyGroup(state, bbox);
+ }
+
+ return;
+}
+
+//------------------------------------------------------------------------
+// in-line image operators
+//------------------------------------------------------------------------
+
+void PdfParser::opBeginImage(Object args[], int numArgs) {
+ Stream *str;
+ int c1, c2;
+
+ // build dict/stream
+ str = buildImageStream();
+
+ // display the image
+ if (str) {
+ doImage(NULL, str, gTrue);
+
+ // skip 'EI' tag
+ c1 = str->getUndecodedStream()->getChar();
+ c2 = str->getUndecodedStream()->getChar();
+ while (!(c1 == 'E' && c2 == 'I') && c2 != EOF) {
+ c1 = c2;
+ c2 = str->getUndecodedStream()->getChar();
+ }
+ delete str;
+ }
+}
+
+Stream *PdfParser::buildImageStream() {
+ Object dict;
+ Object obj;
+ char *key;
+ Stream *str;
+
+ // build dictionary
+ dict.initDict(xref);
+ parser->getObj(&obj);
+ while (!obj.isCmd("ID") && !obj.isEOF()) {
+ if (!obj.isName()) {
+ error(getPos(), "Inline image dictionary key must be a name object");
+ obj.free();
+ } else {
+ key = copyString(obj.getName());
+ obj.free();
+ parser->getObj(&obj);
+ if (obj.isEOF() || obj.isError()) {
+ gfree(key);
+ break;
+ }
+ dict.dictAdd(key, &obj);
+ }
+ parser->getObj(&obj);
+ }
+ if (obj.isEOF()) {
+ error(getPos(), "End of file in inline image");
+ obj.free();
+ dict.free();
+ return NULL;
+ }
+ obj.free();
+
+ // make stream
+ str = new EmbedStream(parser->getStream(), &dict, gFalse, 0);
+ str = str->addFilters(&dict);
+
+ return str;
+}
+
+void PdfParser::opImageData(Object args[], int numArgs) {
+ error(getPos(), "Internal: got 'ID' operator");
+}
+
+void PdfParser::opEndImage(Object args[], int numArgs) {
+ error(getPos(), "Internal: got 'EI' operator");
+}
+
+//------------------------------------------------------------------------
+// type 3 font operators
+//------------------------------------------------------------------------
+
+void PdfParser::opSetCharWidth(Object args[], int numArgs) {
+}
+
+void PdfParser::opSetCacheDevice(Object args[], int numArgs) {
+}
+
+//------------------------------------------------------------------------
+// compatibility operators
+//------------------------------------------------------------------------
+
+void PdfParser::opBeginIgnoreUndef(Object args[], int numArgs) {
+ ++ignoreUndef;
+}
+
+void PdfParser::opEndIgnoreUndef(Object args[], int numArgs) {
+ if (ignoreUndef > 0)
+ --ignoreUndef;
+}
+
+//------------------------------------------------------------------------
+// marked content operators
+//------------------------------------------------------------------------
+
+void PdfParser::opBeginMarkedContent(Object args[], int numArgs) {
+ if (printCommands) {
+ printf(" marked content: %s ", args[0].getName());
+ if (numArgs == 2)
+ args[2].print(stdout);
+ printf("\n");
+ fflush(stdout);
+ }
+
+ if(numArgs == 2) {
+ //out->beginMarkedContent(args[0].getName(),args[1].getDict());
+ } else {
+ //out->beginMarkedContent(args[0].getName());
+ }
+}
+
+void PdfParser::opEndMarkedContent(Object args[], int numArgs) {
+ //out->endMarkedContent();
+}
+
+void PdfParser::opMarkPoint(Object args[], int numArgs) {
+ if (printCommands) {
+ printf(" mark point: %s ", args[0].getName());
+ if (numArgs == 2)
+ args[2].print(stdout);
+ printf("\n");
+ fflush(stdout);
+ }
+
+ if(numArgs == 2) {
+ //out->markPoint(args[0].getName(),args[1].getDict());
+ } else {
+ //out->markPoint(args[0].getName());
+ }
+
+}
+
+//------------------------------------------------------------------------
+// misc
+//------------------------------------------------------------------------
+
+void PdfParser::saveState() {
+ builder->saveState();
+ state = state->save();
+}
+
+void PdfParser::restoreState() {
+ state = state->restore();
+ builder->restoreState();
+}
+
+void PdfParser::pushResources(Dict *resDict) {
+ res = new GfxResources(xref, resDict, res);
+}
+
+void PdfParser::popResources() {
+ GfxResources *resPtr;
+
+ resPtr = res->getNext();
+ delete res;
+ res = resPtr;
+}
+
+#endif /* HAVE_POPPLER */
diff --git a/src/extension/internal/pdfinput/pdf-parser.h b/src/extension/internal/pdfinput/pdf-parser.h
--- /dev/null
@@ -0,0 +1,303 @@
+
+ /** \file
+ * PDF parsing module using libpoppler's facilities
+ *
+ * Derived from Gfx.h
+ *
+ * Copyright 1996-2003 Glyph & Cog, LLC
+ *
+ */
+
+#ifndef PDF_PARSER_H
+#define PDF_PARSER_H
+
+#ifdef HAVE_POPPLER
+
+#ifdef USE_GCC_PRAGMAS
+#pragma interface
+#endif
+
+namespace Inkscape {
+ namespace Extension {
+ namespace Internal {
+ class SvgBuilder;
+ }
+ }
+}
+using Inkscape::Extension::Internal::SvgBuilder;
+
+#include "goo/gtypes.h"
+#include "Object.h"
+
+class GooString;
+class XRef;
+class Array;
+class Stream;
+class Parser;
+class Dict;
+class Function;
+class OutputDev;
+class GfxFontDict;
+class GfxFont;
+class GfxPattern;
+class GfxTilingPattern;
+class GfxShadingPattern;
+class GfxShading;
+class GfxFunctionShading;
+class GfxAxialShading;
+class GfxRadialShading;
+class GfxGouraudTriangleShading;
+class GfxPatchMeshShading;
+struct GfxPatch;
+class GfxState;
+struct GfxColor;
+class GfxColorSpace;
+class Gfx;
+class GfxResources;
+class PDFRectangle;
+class AnnotBorderStyle;
+
+class PdfParser;
+
+//------------------------------------------------------------------------
+
+#ifndef GFX_H
+enum GfxClipType {
+ clipNone,
+ clipNormal,
+ clipEO
+};
+
+enum TchkType {
+ tchkBool, // boolean
+ tchkInt, // integer
+ tchkNum, // number (integer or real)
+ tchkString, // string
+ tchkName, // name
+ tchkArray, // array
+ tchkProps, // properties (dictionary or name)
+ tchkSCN, // scn/SCN args (number of name)
+ tchkNone // used to avoid empty initializer lists
+};
+#endif /* GFX_H */
+
+#define maxOperatorArgs 33
+
+struct PdfOperator {
+ char name[4];
+ int numArgs;
+ TchkType tchk[maxOperatorArgs];
+ void (PdfParser::*func)(Object args[], int numArgs);
+};
+
+#undef maxOperatorArgs
+
+struct OpHistoryEntry {
+ const char *name; // operator's name
+ GfxState *state; // saved state, NULL if none
+ GBool executed; // whether the operator has been executed
+
+ OpHistoryEntry *next; // next entry on stack
+ unsigned depth; // total number of entries descending from this
+};
+
+//------------------------------------------------------------------------
+// PdfParser
+//------------------------------------------------------------------------
+
+class PdfParser {
+public:
+
+ // Constructor for regular output.
+ PdfParser(XRef *xrefA, SvgBuilder *builderA,
+ int pageNum, Dict *resDict, PDFRectangle *cropBox,
+ GBool (*abortCheckCbkA)(void *data) = NULL,
+ void *abortCheckCbkDataA = NULL);
+
+ ~PdfParser();
+
+ // Interpret a stream or array of streams.
+ void parse(Object *obj, GBool topLevel = gTrue);
+
+ // Save graphics state.
+ void saveState();
+
+ // Restore graphics state.
+ void restoreState();
+
+ // Get the current graphics state object.
+ GfxState *getState() { return state; }
+
+private:
+
+ XRef *xref; // the xref table for this PDF file
+ SvgBuilder *builder; // SVG generator
+ GBool subPage; // is this a sub-page object?
+ GBool printCommands; // print the drawing commands (for debugging)
+ GfxResources *res; // resource stack
+ int updateLevel;
+
+ GfxState *state; // current graphics state
+ GBool fontChanged; // set if font or text matrix has changed
+ GfxClipType clip; // do a clip?
+ int ignoreUndef; // current BX/EX nesting level
+ double baseMatrix[6]; // default matrix for most recent
+ // page/form/pattern
+ int formDepth;
+
+ Parser *parser; // parser for page content stream(s)
+
+ GBool // callback to check for an abort
+ (*abortCheckCbk)(void *data);
+ void *abortCheckCbkData;
+
+ static PdfOperator opTab[]; // table of operators
+
+ OpHistoryEntry *operatorHistory; // list containing the last N operators
+ void pushOperator(const char *name);
+ OpHistoryEntry *popOperator();
+ const char *getPreviousOperator(); // returns the previous operator's name
+
+ void go(GBool topLevel);
+ void execOp(Object *cmd, Object args[], int numArgs);
+ PdfOperator *findOp(char *name);
+ GBool checkArg(Object *arg, TchkType type);
+ int getPos();
+
+ // graphics state operators
+ void opSave(Object args[], int numArgs);
+ void opRestore(Object args[], int numArgs);
+ void opConcat(Object args[], int numArgs);
+ void opSetDash(Object args[], int numArgs);
+ void opSetFlat(Object args[], int numArgs);
+ void opSetLineJoin(Object args[], int numArgs);
+ void opSetLineCap(Object args[], int numArgs);
+ void opSetMiterLimit(Object args[], int numArgs);
+ void opSetLineWidth(Object args[], int numArgs);
+ void opSetExtGState(Object args[], int numArgs);
+ void doSoftMask(Object *str, GBool alpha,
+ GfxColorSpace *blendingColorSpace,
+ GBool isolated, GBool knockout,
+ Function *transferFunc, GfxColor *backdropColor);
+ void opSetRenderingIntent(Object args[], int numArgs);
+
+ // color operators
+ void opSetFillGray(Object args[], int numArgs);
+ void opSetStrokeGray(Object args[], int numArgs);
+ void opSetFillCMYKColor(Object args[], int numArgs);
+ void opSetStrokeCMYKColor(Object args[], int numArgs);
+ void opSetFillRGBColor(Object args[], int numArgs);
+ void opSetStrokeRGBColor(Object args[], int numArgs);
+ void opSetFillColorSpace(Object args[], int numArgs);
+ void opSetStrokeColorSpace(Object args[], int numArgs);
+ void opSetFillColor(Object args[], int numArgs);
+ void opSetStrokeColor(Object args[], int numArgs);
+ void opSetFillColorN(Object args[], int numArgs);
+ void opSetStrokeColorN(Object args[], int numArgs);
+
+ // path segment operators
+ void opMoveTo(Object args[], int numArgs);
+ void opLineTo(Object args[], int numArgs);
+ void opCurveTo(Object args[], int numArgs);
+ void opCurveTo1(Object args[], int numArgs);
+ void opCurveTo2(Object args[], int numArgs);
+ void opRectangle(Object args[], int numArgs);
+ void opClosePath(Object args[], int numArgs);
+
+ // path painting operators
+ void opEndPath(Object args[], int numArgs);
+ void opStroke(Object args[], int numArgs);
+ void opCloseStroke(Object args[], int numArgs);
+ void opFill(Object args[], int numArgs);
+ void opEOFill(Object args[], int numArgs);
+ void opFillStroke(Object args[], int numArgs);
+ void opCloseFillStroke(Object args[], int numArgs);
+ void opEOFillStroke(Object args[], int numArgs);
+ void opCloseEOFillStroke(Object args[], int numArgs);
+ void doFillAndStroke(GBool eoFill);
+ void doPatternFillFallback(GBool eoFill);
+ void doPatternStrokeFallback();
+ void doShadingPatternFillFallback(GfxShadingPattern *sPat,
+ GBool stroke, GBool eoFill);
+ void opShFill(Object args[], int numArgs);
+ void doFunctionShFill(GfxFunctionShading *shading);
+ void doFunctionShFill1(GfxFunctionShading *shading,
+ double x0, double y0,
+ double x1, double y1,
+ GfxColor *colors, int depth);
+ void doGouraudTriangleShFill(GfxGouraudTriangleShading *shading);
+ void gouraudFillTriangle(double x0, double y0, GfxColor *color0,
+ double x1, double y1, GfxColor *color1,
+ double x2, double y2, GfxColor *color2,
+ int nComps, int depth);
+ void doPatchMeshShFill(GfxPatchMeshShading *shading);
+ void fillPatch(GfxPatch *patch, int nComps, int depth);
+ void doEndPath();
+
+ // path clipping operators
+ void opClip(Object args[], int numArgs);
+ void opEOClip(Object args[], int numArgs);
+
+ // text object operators
+ void opBeginText(Object args[], int numArgs);
+ void opEndText(Object args[], int numArgs);
+
+ // text state operators
+ void opSetCharSpacing(Object args[], int numArgs);
+ void opSetFont(Object args[], int numArgs);
+ void opSetTextLeading(Object args[], int numArgs);
+ void opSetTextRender(Object args[], int numArgs);
+ void opSetTextRise(Object args[], int numArgs);
+ void opSetWordSpacing(Object args[], int numArgs);
+ void opSetHorizScaling(Object args[], int numArgs);
+
+ // text positioning operators
+ void opTextMove(Object args[], int numArgs);
+ void opTextMoveSet(Object args[], int numArgs);
+ void opSetTextMatrix(Object args[], int numArgs);
+ void opTextNextLine(Object args[], int numArgs);
+
+ // text string operators
+ void opShowText(Object args[], int numArgs);
+ void opMoveShowText(Object args[], int numArgs);
+ void opMoveSetShowText(Object args[], int numArgs);
+ void opShowSpaceText(Object args[], int numArgs);
+ void doShowText(GooString *s);
+
+ // XObject operators
+ void opXObject(Object args[], int numArgs);
+ void doImage(Object *ref, Stream *str, GBool inlineImg);
+ void doForm(Object *str);
+ void doForm1(Object *str, Dict *resDict, double *matrix, double *bbox,
+ GBool transpGroup = gFalse, GBool softMask = gFalse,
+ GfxColorSpace *blendingColorSpace = NULL,
+ GBool isolated = gFalse, GBool knockout = gFalse,
+ GBool alpha = gFalse, Function *transferFunc = NULL,
+ GfxColor *backdropColor = NULL);
+
+ // in-line image operators
+ void opBeginImage(Object args[], int numArgs);
+ Stream *buildImageStream();
+ void opImageData(Object args[], int numArgs);
+ void opEndImage(Object args[], int numArgs);
+
+ // type 3 font operators
+ void opSetCharWidth(Object args[], int numArgs);
+ void opSetCacheDevice(Object args[], int numArgs);
+
+ // compatibility operators
+ void opBeginIgnoreUndef(Object args[], int numArgs);
+ void opEndIgnoreUndef(Object args[], int numArgs);
+
+ // marked content operators
+ void opBeginMarkedContent(Object args[], int numArgs);
+ void opEndMarkedContent(Object args[], int numArgs);
+ void opMarkPoint(Object args[], int numArgs);
+
+ void pushResources(Dict *resDict);
+ void popResources();
+};
+
+#endif /* HAVE_POPPLER */
+
+#endif /* PDF_PARSER_H */
diff --git a/src/extension/internal/pdfinput/svg-builder.cpp b/src/extension/internal/pdfinput/svg-builder.cpp
--- /dev/null
@@ -0,0 +1,608 @@
+ /** \file
+ * Native PDF import using libpoppler.
+ *
+ * Authors:
+ * miklos erdelyi
+ *
+ * Copyright (C) 2007 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef HAVE_POPPLER
+
+#include "svg-builder.h"
+#include "pdf-parser.h"
+
+#include "document-private.h"
+#include "xml/document.h"
+#include "xml/node.h"
+#include "xml/repr.h"
+#include "svg/svg.h"
+#include "svg/path-string.h"
+#include "svg/css-ostringstream.h"
+#include "svg/svg-color.h"
+#include "color.h"
+#include "unit-constants.h"
+
+#include "Function.h"
+#include "GfxState.h"
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+
+#define LOG(expr) ( expr );
+
+/**
+ * \class SvgBuilder
+ *
+ */
+
+SvgBuilder::SvgBuilder(SPDocument *document) {
+ doc = document;
+ xml_doc = sp_document_repr_doc(doc);
+ container = root = doc->rroot;
+}
+
+SvgBuilder::SvgBuilder(SvgBuilder *parent, Inkscape::XML::Node *root) {
+ doc = parent->doc;
+ xml_doc = parent->xml_doc;
+ container = this->root = root;
+}
+
+SvgBuilder::~SvgBuilder() {
+}
+
+void SvgBuilder::setDocumentSize(double width, double height) {
+ sp_repr_set_svg_double(root, "width", width);
+ sp_repr_set_svg_double(root, "height", height);
+ this->width = width;
+ this->height = height;
+}
+
+void SvgBuilder::saveState() {
+ groupDepth.push_back(0);
+ pushGroup();
+}
+
+void SvgBuilder::restoreState() {
+ int depth = groupDepth.back();
+ while (groupDepth.back() > 0) {
+ popGroup();
+ }
+ groupDepth.pop_back();
+}
+
+Inkscape::XML::Node *SvgBuilder::pushGroup() {
+ Inkscape::XML::Node *node = xml_doc->createElement("svg:g");
+ container->appendChild(node);
+ container = node;
+ Inkscape::GC::release(node);
+ groupDepth.back()++;
+
+ return container;
+}
+
+Inkscape::XML::Node *SvgBuilder::popGroup() {
+ if (container != root) { // Pop if the current container isn't root
+ container = container->parent();
+ groupDepth[groupDepth.size()-1] = --groupDepth.back();
+ }
+
+ return container;
+}
+
+Inkscape::XML::Node *SvgBuilder::getContainer() {
+ return container;
+}
+
+static gchar *svgConvertRGBToText(double r, double g, double b) {
+ static gchar tmp[1023] = {0};
+ snprintf(tmp, 1023,
+ "rgb(%i, %i, %i)",
+ SP_COLOR_F_TO_U(r),
+ SP_COLOR_F_TO_U(g),
+ SP_COLOR_F_TO_U(b));
+ return (gchar*)&tmp;
+}
+
+static gchar *svgConvertGfxRGB(GfxRGB *color) {
+ double r = color->r / 65535.0;
+ double g = color->g / 65535.0;
+ double b = color->b / 65535.0;
+ return svgConvertRGBToText(r, g, b);
+}
+
+static gchar *svgInterpretTransform(double c0, double c1, double c2, double c3,
+ double c4, double c5) {
+ NR::Matrix matrix(c0, c1, c2, c3, c4, c5);
+ return sp_svg_transform_write(matrix);
+}
+
+static gchar *svgInterpretTransform(double *transform) {
+ return svgInterpretTransform(transform[0], transform[1], transform[2],
+ transform[3], transform[4], transform[5]);
+}
+
+static gchar *svgInterpretPath(GfxPath *path) {
+ GfxSubpath *subpath;
+ Inkscape::SVG::PathString pathString;
+ int i, j;
+ for (i = 0; i < path->getNumSubpaths(); ++i) {
+ subpath = path->getSubpath(i);
+ if (subpath->getNumPoints() > 0) {
+ pathString.moveTo(subpath->getX(0), subpath->getY(0));
+ j = 1;
+ while (j < subpath->getNumPoints()) {
+ if (subpath->getCurve(j)) {
+ pathString.curveTo(subpath->getX(j), subpath->getY(j),
+ subpath->getX(j+1), subpath->getY(j+1),
+ subpath->getX(j+2), subpath->getY(j+2));
+
+ j += 3;
+ } else {
+ pathString.lineTo(subpath->getX(j), subpath->getY(j));
+ ++j;
+ }
+ }
+ if (subpath->isClosed()) {
+ pathString.closePath();
+ }
+ }
+ }
+
+ return g_strdup(pathString.c_str());
+}
+
+/**
+ * \brief Sets stroke style from poppler's GfxState data structure
+ * Uses the given SPCSSAttr for storing the style properties
+ */
+void SvgBuilder::setStrokeStyle(SPCSSAttr *css, GfxState *state) {
+
+ // Check line width
+ if (state->getLineWidth() <= 0.0) {
+ // Ignore stroke
+ return;
+ }
+
+ // Stroke color/pattern
+ if (state->getStrokeColorSpace()->getMode() == csPattern) {
+ gchar *urltext = createPattern(state->getStrokePattern());
+ sp_repr_css_set_property(css, "stroke", urltext);
+ if (urltext) {
+ g_free(urltext);
+ }
+ } else {
+ GfxRGB stroke_color;
+ state->getStrokeRGB(&stroke_color);
+ sp_repr_css_set_property(css, "stroke", svgConvertGfxRGB(&stroke_color));
+ }
+
+ // Opacity
+ Inkscape::CSSOStringStream os_opacity;
+ os_opacity << state->getStrokeOpacity();
+ sp_repr_css_set_property(css, "stroke-opacity", os_opacity.str().c_str());
+
+ // Line width
+ Inkscape::CSSOStringStream os_width;
+ os_width << state->getLineWidth();
+ sp_repr_css_set_property(css, "stroke-width", os_width.str().c_str());
+
+ // Line cap
+ switch (state->getLineCap()) {
+ case 0:
+ sp_repr_css_set_property(css, "stroke-linecap", "butt");
+ break;
+ case 1:
+ sp_repr_css_set_property(css, "stroke-linecap", "round");
+ break;
+ case 2:
+ sp_repr_css_set_property(css, "stroke-linecap", "square");
+ break;
+ }
+
+ // Line join
+ switch (state->getLineJoin()) {
+ case 0:
+ sp_repr_css_set_property(css, "stroke-linejoin", "miter");
+ break;
+ case 1:
+ sp_repr_css_set_property(css, "stroke-linejoin", "round");
+ break;
+ case 2:
+ sp_repr_css_set_property(css, "stroke-linejoin", "bevel");
+ break;
+ }
+
+ // Miterlimit
+ Inkscape::CSSOStringStream os_ml;
+ os_ml << state->getMiterLimit();
+ sp_repr_css_set_property(css, "stroke-miterlimit", os_ml.str().c_str());
+
+ // Line dash
+ double *dash_pattern;
+ int dash_length;
+ double dash_start;
+ state->getLineDash(&dash_pattern, &dash_length, &dash_start);
+ if (dash_length > 0) {
+ Inkscape::CSSOStringStream os_array;
+ for (int i = 0; i < dash_length; i++) {
+ os_array << dash_pattern[i];
+ if (i < (dash_length - 1)) {
+ os_array << ",";
+ }
+ }
+ printf("aaaa %s\n", os_array.str().c_str());
+ sp_repr_css_set_property(css, "stroke-dasharray", os_array.str().c_str());
+
+ Inkscape::CSSOStringStream os_offset;
+ os_offset << dash_start;
+ sp_repr_css_set_property(css, "stroke-dashoffset", os_offset.str().c_str());
+ } else {
+ sp_repr_css_set_property(css, "stroke-dasharray", "none");
+ sp_repr_css_set_property(css, "stroke-dashoffset", NULL);
+ }
+}
+
+/**
+ * \brief Sets fill style from poppler's GfxState data structure
+ * Uses the given SPCSSAttr for storing the style properties.
+ */
+void SvgBuilder::setFillStyle(SPCSSAttr *css, GfxState *state, bool even_odd) {
+
+ // Fill color/pattern
+ if (state->getFillColorSpace()->getMode() == csPattern) {
+ gchar *urltext = createPattern(state->getFillPattern());
+ sp_repr_css_set_property(css, "fill", urltext);
+ if (urltext) {
+ g_free(urltext);
+ }
+ } else {
+ GfxRGB fill_color;
+ state->getFillRGB(&fill_color);
+ sp_repr_css_set_property(css, "fill", svgConvertGfxRGB(&fill_color));
+ }
+
+ // Opacity
+ Inkscape::CSSOStringStream os_opacity;
+ os_opacity << state->getFillOpacity();
+ sp_repr_css_set_property(css, "fill-opacity", os_opacity.str().c_str());
+
+ // Fill rule
+ sp_repr_css_set_property(css, "fill-rule", even_odd ? "evenodd" : "nonzero");
+}
+
+/**
+ * \brief Sets style properties from poppler's GfxState data structure
+ * \return SPCSSAttr with all the relevant properties set
+ */
+SPCSSAttr *SvgBuilder::setStyle(GfxState *state, bool fill, bool stroke, bool even_odd) {
+ SPCSSAttr *css = sp_repr_css_attr_new();
+ if (fill) {
+ setFillStyle(css, state, even_odd);
+ } else {
+ sp_repr_css_set_property(css, "fill", "none");
+ }
+
+ if (stroke) {
+ setStrokeStyle(css, state);
+ } else {
+ sp_repr_css_set_property(css, "stroke", "none");
+ }
+
+ return css;
+}
+
+/**
+ * \brief Emits the current path in poppler's GfxState data structure
+ * Can be used to do filling and stroking at once.
+ *
+ * \param fill whether the path should be filled
+ * \param stroke whether the path should be stroked
+ * \param even_odd whether the even-odd rule should be used when filling the path
+ */
+void SvgBuilder::addPath(GfxState *state, bool fill, bool stroke, bool even_odd) {
+ Inkscape::XML::Node *path = xml_doc->createElement("svg:path");
+ gchar *pathtext = svgInterpretPath(state->getPath());
+ path->setAttribute("d", pathtext);
+ g_free(pathtext);
+
+ // Set style
+ SPCSSAttr *css = setStyle(state, fill, stroke, even_odd);
+ sp_repr_css_change(path, css, "style");
+ sp_repr_css_attr_unref(css);
+
+ container->appendChild(path);
+ Inkscape::GC::release(path);
+}
+
+void SvgBuilder::clip(GfxState *state, bool even_odd) {
+ pushGroup();
+ setClipPath(state, even_odd);
+}
+
+void SvgBuilder::setClipPath(GfxState *state, bool even_odd) {
+ // Create the clipPath repr
+ Inkscape::XML::Node *clip_path = xml_doc->createElement("svg:clipPath");
+ clip_path->setAttribute("clipPathUnits", "userSpaceOnUse");
+ // Create the path
+ Inkscape::XML::Node *path = xml_doc->createElement("svg:path");
+ gchar *pathtext = svgInterpretPath(state->getPath());
+ path->setAttribute("d", pathtext);
+ g_free(pathtext);
+ clip_path->appendChild(path);
+ Inkscape::GC::release(path);
+ // Append clipPath to defs and get id
+ SP_OBJECT_REPR (SP_DOCUMENT_DEFS (doc))->appendChild(clip_path);
+ gchar *urltext = g_strdup_printf ("url(#%s)", clip_path->attribute("id"));
+ Inkscape::GC::release(clip_path);
+ container->setAttribute("clip-path", urltext);
+ g_free(urltext);
+}
+
+bool SvgBuilder::getTransform(double *transform) {
+ NR::Matrix svd;
+ gchar const *tr = container->attribute("transform");
+ bool valid = sp_svg_transform_read(tr, &svd);
+ if (valid) {
+ for (unsigned i = 0; i < 6; i++) {
+ transform[i] = svd[i];
+ }
+ return true;
+ } else {
+ return false;
+ }
+}
+
+void SvgBuilder::setTransform(double c0, double c1, double c2, double c3,
+ double c4, double c5) {
+
+ gchar *transform_text = svgInterpretTransform(c0, c1, c2, c3, c4, c5);
+ LOG(g_message("setTransform: %f %f %f %f %f %f", c0, c1, c2, c3, c4, c5));
+ container->setAttribute("transform", transform_text);
+ g_free(transform_text);
+}
+
+void SvgBuilder::setTransform(double *transform) {
+ setTransform(transform[0], transform[1], transform[2], transform[3],
+ transform[4], transform[5]);
+}
+
+/**
+ * \brief Checks whether the given pattern type can be represented in SVG
+ * Used by PdfParser to decide when to do fallback operations.
+ */
+bool SvgBuilder::isPatternTypeSupported(GfxPattern *pattern) {
+ if (pattern != NULL) {
+ if (pattern->getType() == 2) { // shading pattern
+ GfxShading *shading = ((GfxShadingPattern *)pattern)->getShading();
+ int shadingType = shading->getType();
+ if (shadingType == 2 || // axial shading
+ shadingType == 3) { // radial shading
+ return true;
+ }
+ return false;
+ } else if (pattern->getType() == 1) { // tiling pattern
+ return true;
+ }
+ }
+
+ return false;
+}
+
+/**
+ * \brief Creates a pattern from poppler's data structure
+ * Handles linear and radial gradients. Creates a new PdfParser and uses it to
+ * build a tiling pattern.
+ * \return an url pointing to the created pattern
+ */
+gchar *SvgBuilder::createPattern(GfxPattern *pattern) {
+ gchar *id = NULL;
+ if (pattern != NULL) {
+ if (pattern->getType() == 2) { // Shading pattern
+ id = createGradient((GfxShadingPattern*)pattern);
+ } else if (pattern->getType() == 1) { // Tiling pattern
+ id = createTilingPattern((GfxTilingPattern*)pattern);
+ }
+ } else {
+ return NULL;
+ }
+ gchar *urltext = g_strdup_printf ("url(#%s)", id);
+ g_free(id);
+ return urltext;
+}
+
+gchar *SvgBuilder::createTilingPattern(GfxTilingPattern *tiling_pattern) {
+ return NULL;
+}
+
+/**
+ * \brief Creates a linear or radial gradient from poppler's data structure
+ * \return id of the created object
+ */
+gchar *SvgBuilder::createGradient(GfxShadingPattern *shading_pattern) {
+ GfxShading *shading = shading_pattern->getShading();
+ Inkscape::XML::Node *gradient;
+ Function *func;
+ int num_funcs;
+ bool extend0, extend1;
+ if (shading->getType() == 2) { // Axial shading
+ gradient = xml_doc->createElement("svg:linearGradient");
+ GfxAxialShading *axial_shading = (GfxAxialShading*)shading;
+ double x1, y1, x2, y2;
+ axial_shading->getCoords(&x1, &y1, &x2, &y2);
+ sp_repr_set_svg_double(gradient, "x1", x1);
+ sp_repr_set_svg_double(gradient, "y1", y1);
+ sp_repr_set_svg_double(gradient, "x2", x2);
+ sp_repr_set_svg_double(gradient, "y2", y2);
+ extend0 = axial_shading->getExtend0();
+ extend1 = axial_shading->getExtend1();
+ num_funcs = axial_shading->getNFuncs();
+ func = axial_shading->getFunc(0);
+ } else if (shading->getType() == 3) { // Radial shading
+ gradient = xml_doc->createElement("svg:radialGradient");
+ GfxRadialShading *radial_shading = (GfxRadialShading*)shading;
+ double x1, y1, r1, x2, y2, r2;
+ radial_shading->getCoords(&x1, &y1, &r1, &x2, &y2, &r2);
+ // FIXME: the inner circle's radius is ignored here
+ sp_repr_set_svg_double(gradient, "fx", x1);
+ sp_repr_set_svg_double(gradient, "fy", y1);
+ sp_repr_set_svg_double(gradient, "cx", x2);
+ sp_repr_set_svg_double(gradient, "cy", y2);
+ sp_repr_set_svg_double(gradient, "r", r2);
+ extend0 = radial_shading->getExtend0();
+ extend1 = radial_shading->getExtend1();
+ num_funcs = radial_shading->getNFuncs();
+ func = radial_shading->getFunc(0);
+ } else { // Unsupported shading type
+ return NULL;
+ }
+ gradient->setAttribute("gradientUnits", "userSpaceOnUse");
+ // Flip the gradient transform around the y axis
+ double *p2u = shading_pattern->getMatrix();
+ NR::Matrix pat_matrix(p2u[0], p2u[1], p2u[2], p2u[3], p2u[4], p2u[5]);
+ NR::Matrix flip(1.0, 0.0, 0.0, -1.0, 0.0, height*PT_PER_PX);
+ pat_matrix *= flip;
+ gradient->setAttribute("gradientTransform", sp_svg_transform_write(pat_matrix));
+
+ if (extend0 && extend1) {
+ gradient->setAttribute("spreadMethod", "pad");
+ }
+ if (num_funcs > 1 || !addStopsToGradient(gradient, func, 1.0)) {
+ Inkscape::GC::release(gradient);
+ return NULL;
+ }
+
+ Inkscape::XML::Node *defs = SP_OBJECT_REPR (SP_DOCUMENT_DEFS (doc));
+ defs->appendChild(gradient);
+ gchar *id = g_strdup(gradient->attribute("id"));
+ Inkscape::GC::release(gradient);
+
+ return id;
+}
+
+#define EPSILON 0.0001
+bool SvgBuilder::addSamplesToGradient(Inkscape::XML::Node *gradient,
+ SampledFunction *func, double offset0,
+ double offset1, double opacity) {
+
+ // Check whether this sampled function can be converted to color stops
+ int sample_size = func->getSampleSize(0);
+ if (sample_size != 2)
+ return false;
+ int num_comps = func->getOutputSize();
+ if (num_comps != 3)
+ return false;
+
+ double *samples = func->getSamples();
+ // See if this is the continuation of the previous sampled function
+ bool is_continuation = false;
+ unsigned stop_count = gradient->childCount();
+ if (stop_count > 0) {
+ // Get previous stop
+ Inkscape::XML::Node *prev_stop = gradient->nthChild(stop_count-1);
+
+ // Read its properties
+ double offset;
+ sp_repr_get_double(prev_stop, "offset", &offset);
+ SPCSSAttr *css = sp_repr_css_attr(prev_stop, "style");
+ guint32 prev_color = sp_svg_read_color(sp_repr_css_property(css, "stop-color", NULL), 0);
+ double alpha = sp_repr_css_double_property(css, "stop-opacity", 1.0);
+ sp_repr_css_attr_unref(css);
+ // Convert colors
+ double r = SP_RGBA32_R_F(prev_color);
+ double g = SP_RGBA32_G_F(prev_color);
+ double b = SP_RGBA32_B_F(prev_color);
+
+ if (fabs(offset - offset0) < EPSILON &&
+ fabs(samples[0] - r) < EPSILON &&
+ fabs(samples[1] - g) < EPSILON &&
+ fabs(samples[2] - b) < EPSILON &&
+ fabs(alpha - opacity) < EPSILON) { // Identical
+
+ is_continuation = true;
+ LOG(g_message("gradient offsets merged"));
+ }
+ }
+
+ int i = 0;
+ if (is_continuation)
+ i = num_comps;
+ while (i < sample_size*num_comps) {
+ Inkscape::XML::Node *stop = xml_doc->createElement("svg:stop");
+ SPCSSAttr *css = sp_repr_css_attr_new();
+ Inkscape::CSSOStringStream os_opacity;
+ os_opacity << opacity;
+ sp_repr_css_set_property(css, "stop-opacity", os_opacity.str().c_str());
+ sp_repr_css_set_property(css, "stop-color",
+ svgConvertRGBToText(samples[i], samples[i+1],
+ samples[i+2]));
+ sp_repr_css_change(stop, css, "style");
+ sp_repr_css_attr_unref(css);
+ sp_repr_set_css_double(stop, "offset", (i < num_comps) ? offset0 : offset1);
+
+ gradient->appendChild(stop);
+ Inkscape::GC::release(stop);
+ i += num_comps;
+ }
+
+ return true;
+}
+
+bool SvgBuilder::addStopsToGradient(Inkscape::XML::Node *gradient, Function *func,
+ double opacity) {
+
+ int type = func->getType();
+ if (type == 0) { // Sampled
+ SampledFunction *sampledFunc = (SampledFunction*)func;
+ addSamplesToGradient(gradient, sampledFunc, 0.0, 1.0, opacity);
+ } else if (type == 3) { // Stitching
+ StitchingFunction *stitchingFunc = (StitchingFunction*)func;
+ double *bounds = stitchingFunc->getBounds();
+ // bounds might be outside of [0..1]!!!!
+ double *encode = stitchingFunc->getEncode();
+ // should check whether all of them are [0..1]
+ int num_funcs = stitchingFunc->getNumFuncs();
+ // Add samples from all the stitched functions
+ for (int i=0; i<num_funcs; i++) {
+ Function *func = stitchingFunc->getFunc(i);
+ if (func->getType() != 0) // Only sampled functions are supported
+ continue;
+
+ LOG(g_message("t%i i%i o%i m%f m%f",
+ func->getType(),
+ func->getInputSize(), func->getOutputSize(),
+ func->getDomainMin(0), func->getDomainMax(0)));
+
+ SampledFunction *sampledFunc = (SampledFunction*)func;
+ addSamplesToGradient(gradient, sampledFunc, bounds[i],
+ bounds[i+1], opacity);
+ }
+ } else { // Unsupported function type
+ return false;
+ }
+
+ return true;
+}
+
+} } } /* namespace Inkscape, Extension, Internal, PdfInput */
+
+#endif /* HAVE_POPPLER */
+
+/*
+ Local Variables:
+ mode:c++
+ c-file-style:"stroustrup"
+ c-file-offsets:((innamespace . 0)(inline-open . 0))
+ indent-tabs-mode:nil
+ fill-column:99
+ End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
diff --git a/src/extension/internal/pdfinput/svg-builder.h b/src/extension/internal/pdfinput/svg-builder.h
--- /dev/null
@@ -0,0 +1,122 @@
+#ifndef __EXTENSION_INTERNAL_PDFINPUT_SVGBUILDER_H__
+#define __EXTENSION_INTERNAL_PDFINPUT_SVGBUILDER_H__
+
+ /** \file
+ * SVG representation creator using libpoppler.
+ *
+ * Authors:
+ * miklos erdelyi
+ *
+ * Copyright (C) 2007 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef HAVE_POPPLER
+
+class SPDocument;
+namespace Inkscape {
+ namespace XML {
+ class Document;
+ class Node;
+ }
+}
+
+class Function;
+class SampledFunction;
+struct GfxState;
+class GfxPattern;
+class GfxShadingPattern;
+class GfxTilingPattern;
+
+class SPCSSAttr;
+
+#include <vector>
+#include <glib/gtypes.h>
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+
+/**
+ * \class SvgBuilder
+ *
+ * Builds the inner SVG representation from the calls of PdfParser
+ *
+ */
+class SvgBuilder {
+public:
+ SvgBuilder(SPDocument *document);
+ SvgBuilder(SvgBuilder *parent, Inkscape::XML::Node *root);
+ ~SvgBuilder();
+
+ // Property setting
+ void setDocumentSize(double width, double height); // Document size in px
+
+ // Handling the node stack
+ Inkscape::XML::Node *pushGroup();
+ Inkscape::XML::Node *popGroup();
+ Inkscape::XML::Node *getContainer(); // Returns current group node
+
+ // Path adding
+ void addPath(GfxState *state, bool fill, bool stroke, bool even_odd=false);
+
+ bool isPatternTypeSupported(GfxPattern *pattern);
+
+ // State manipulation
+ void saveState();
+ void restoreState();
+
+ // Clipping
+ void clip(GfxState *state, bool even_odd=false);
+ void setClipPath(GfxState *state, bool even_odd=false);
+
+ // Transforming
+ void setTransform(double c0, double c1, double c2, double c3, double c4,
+ double c5);
+ void setTransform(double *transform);
+ bool getTransform(double *transform);
+
+private:
+ // Pattern creation
+ gchar *createPattern(GfxPattern *pattern);
+ gchar *createGradient(GfxShadingPattern *shading_pattern);
+ bool addStopsToGradient(Inkscape::XML::Node *gradient, Function *func, double opacity);
+ bool addSamplesToGradient(Inkscape::XML::Node *gradient, SampledFunction *func,
+ double offset0, double offset1, double opacity);
+ gchar *createTilingPattern(GfxTilingPattern *tiling_pattern);
+ // Style setting
+ SPCSSAttr *setStyle(GfxState *state, bool fill, bool stroke, bool even_odd);
+ void setStrokeStyle(SPCSSAttr *css, GfxState *state);
+ void setFillStyle(SPCSSAttr *css, GfxState *state, bool even_odd);
+
+ std::vector<int> groupDepth; // Depth of nesting groups
+
+ SPDocument *doc;
+ Inkscape::XML::Document *xml_doc;
+ Inkscape::XML::Node *root; // Root node from the point of view of this SvgBuilder
+ Inkscape::XML::Node *container; // Current container (group/pattern/mask)
+ double width, height; // Document size in px
+};
+
+
+} } } /* namespace Inkscape, Extension, Internal, PdfInput */
+
+#endif /* HAVE_POPPLER */
+
+#endif /* __EXTENSION_INTERNAL_PDFINPUT_SVGBUILDER_H__ */
+
+/*
+ Local Variables:
+ mode:c++
+ c-file-style:"stroustrup"
+ c-file-offsets:((innamespace . 0)(inline-open . 0))
+ indent-tabs-mode:nil
+ fill-column:99
+ End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :