![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/src/extension/internal/latex-text-renderer.cpp b/src/extension/internal/latex-text-renderer.cpp
index 94e1d98934c5d58bba204755fc018be02e42985c..fd99afe31b71f2fedd8c9dd503d97e277ce4d44d 100644 (file)
-#define EXTENSION_INTERNAL_LATEX_TEXT_RENDERER_CPP
-
/** \file
* Rendering LaTeX file (pdf/eps/ps+latex output)
*
* Authors:
* Johan Engelen <goejendaagh@zonnet.nl>
* Miklos Erdelyi <erdelyim@gmail.com>
+ * Jon A. Cruz <jon@joncruz.org>
+ * Abhishek Sharma
*
* Copyright (C) 2006-2010 Authors
*
#include "sp-use.h"
#include "sp-text.h"
#include "sp-flowtext.h"
+#include "sp-rect.h"
#include "text-editing.h"
#include <unit-constants.h>
/**
* This method is called by the PDF, EPS and PS output extensions.
- * @param filename This should be the filename without extension to which the tex code should be written. Output goes to <filename>.tex.
+ * @param filename This should be the filename without '_tex' extension to which the tex code should be written. Output goes to <filename>_tex, note the underscore instead of period.
*/
bool
latex_render_document_text_to_file( SPDocument *doc, gchar const *filename,
- const gchar * const exportId, bool exportDrawing, bool exportCanvas)
+ const gchar * const exportId, bool exportDrawing, bool exportCanvas,
+ bool pdflatex)
{
- sp_document_ensure_up_to_date(doc);
+ doc->ensureUpToDate();
SPItem *base = NULL;
}
else {
// we want to export the entire document from root
- base = SP_ITEM(sp_document_root(doc));
+ base = SP_ITEM(doc->getRoot());
pageBoundingBox = !exportDrawing;
}
return false;
/* Create renderer */
- LaTeXTextRenderer *renderer = new LaTeXTextRenderer();
+ LaTeXTextRenderer *renderer = new LaTeXTextRenderer(pdflatex);
bool ret = renderer->setTargetFile(filename);
if (ret) {
return ret;
}
-LaTeXTextRenderer::LaTeXTextRenderer(void)
+LaTeXTextRenderer::LaTeXTextRenderer(bool pdflatex)
: _stream(NULL),
- _filename(NULL)
+ _filename(NULL),
+ _pdflatex(pdflatex)
{
push_transform(Geom::identity());
}
_filename = g_path_get_basename(filename);
- gchar *filename_ext = g_strdup_printf("%s.tex", filename);
+ gchar *filename_ext = g_strdup_printf("%s_tex", filename);
Inkscape::IO::dump_fopen_call(filename_ext, "K");
FILE *osf = Inkscape::IO::fopen_utf8name(filename_ext, "w+");
if (!osf) {
static char const preamble[] =
"%% To include the image in your LaTeX document, write\n"
-"%% \\input{<filename>.tex}\n"
+"%% \\input{<filename>.pdf_tex}\n"
"%% instead of\n"
"%% \\includegraphics{<filename>.pdf}\n"
"%% To scale the image, write\n"
-"%% \\def{\\svgwidth}{<desired width>}\n"
-"%% \\input{<filename>.tex}\n"
+"%% \\def\\svgwidth{<desired width>}\n"
+"%% \\input{<filename>.pdf_tex}\n"
"%% instead of\n"
"%% \\includegraphics[width=<desired width>]{<filename>.pdf}\n"
+"%%\n"
+"%% Images with a different path to the parent latex file can\n"
+"%% be accessed with the `import' package (which may need to be\n"
+"%% installed) using\n"
+"%% \\usepackage{import}\n"
+"%% in the preamble, and then including the image with\n"
+"%% \\import{<path to file>}{<filename>.pdf_tex}\n"
+"%% Alternatively, one can specify\n"
+"%% \\graphicspath{{<path to file>/}}\n"
+"%% \n"
+"%% For more information, please see info/svg-inkscape on CTAN:\n"
+"%% http://tug.ctan.org/tex-archive/info/svg-inkscape\n"
"\n"
"\\begingroup\n"
" \\makeatletter\n"
" \\providecommand\\color[2][]{%\n"
-" \\GenericError{(Inkscape) \\space\\space\\@spaces}{%\n"
-" Color is used for the text in Inkscape, but the color package color is not loaded.\n"
-" }{Either use black text in Inkscape or load the package\n"
-" color.sty in LaTeX.}%\n"
+" \\errmessage{(Inkscape) Color is used for the text in Inkscape, but the package \'color.sty\' is not loaded}\n"
" \\renewcommand\\color[2][]{}%\n"
" }\n"
+" \\providecommand\\transparent[1]{%\n"
+" \\errmessage{(Inkscape) Transparency is used (non-zero) for the text in Inkscape, but the package \'transparent.sty\' is not loaded}\n"
+" \\renewcommand\\transparent[1]{}%\n"
+" }\n"
" \\providecommand\\rotatebox[2]{#2}\n";
static char const postamble[] =
// get position and alignment
// Align vertically on the baseline of the font (retreived from the anchor point)
// Align horizontally on anchorpoint
- gchar *alignment = NULL;
+ gchar const *alignment = NULL;
switch (style->text_anchor.computed) {
case SP_CSS_TEXT_ANCHOR_START:
alignment = "[lb]";
Geom::Point anchor = textobj->attributes.firstXY() * transform();
Geom::Point pos(anchor);
- // determine color (for now, use rgb color model as it is most native to Inkscape)
+ // determine color and transparency (for now, use rgb color model as it is most native to Inkscape)
bool has_color = false; // if the item has no color set, don't force black color
+ bool has_transparency = false;
// TODO: how to handle ICC colors?
// give priority to fill color
guint32 rgba = 0;
+ float opacity = SP_SCALE24_TO_FLOAT(style->opacity.value);
if (style->fill.set && style->fill.isColor()) {
has_color = true;
rgba = style->fill.value.color.toRGBA32(1.);
+ opacity *= SP_SCALE24_TO_FLOAT(style->fill_opacity.value);
} else if (style->stroke.set && style->stroke.isColor()) {
has_color = true;
rgba = style->stroke.value.color.toRGBA32(1.);
+ opacity *= SP_SCALE24_TO_FLOAT(style->stroke_opacity.value);
+ }
+ if (opacity < 1.0) {
+ has_transparency = true;
}
-
// get rotation
- Geom::Matrix i2doc = sp_item_i2doc_affine(item);
+ Geom::Matrix i2doc = item->i2doc_affine();
Geom::Matrix wotransl = i2doc.without_translation();
double degrees = -180/M_PI * Geom::atan2(wotransl.xAxis());
bool has_rotation = !Geom::are_near(degrees,0.);
if (has_color) {
os << "\\color[rgb]{" << SP_RGBA32_R_F(rgba) << "," << SP_RGBA32_G_F(rgba) << "," << SP_RGBA32_B_F(rgba) << "}";
}
+ if (_pdflatex && has_transparency) {
+ os << "\\transparent{" << opacity << "}";
+ }
if (has_rotation) {
os << "\\rotatebox{" << degrees << "}{";
}
}
void
-LaTeXTextRenderer::sp_flowtext_render(SPItem *item)
+LaTeXTextRenderer::sp_flowtext_render(SPItem * item)
{
-/* SPFlowtext *group = SP_FLOWTEXT(item);
+/*
+Flowtext is possible by using a minipage! :)
+Flowing in rectangle is possible, not in arb shape.
+*/
+
+ SPFlowtext *flowtext = SP_FLOWTEXT(item);
+ SPStyle *style = SP_OBJECT_STYLE (SP_OBJECT(item));
+
+ gchar *strtext = sp_te_get_string_multiline(item);
+ if (!strtext) {
+ return;
+ }
+ // replace carriage return with double slash
+ gchar ** splitstr = g_strsplit(strtext, "\n", -1);
+ gchar *str = g_strjoinv("\\\\ ", splitstr);
+ g_free(strtext);
+ g_strfreev(splitstr);
+
+ SPItem *frame_item = flowtext->get_frame(NULL);
+ if (!frame_item || !SP_IS_RECT(frame_item)) {
+ g_warning("LaTeX export: non-rectangular flowed text shapes are not supported, skipping text.");
+ return; // don't know how to handle non-rect frames yet. is quite uncommon for latex users i think
+ }
+
+ SPRect *frame = SP_RECT(frame_item);
+ Geom::Rect framebox = sp_rect_get_rect(frame) * transform();
+
+ // get position and alignment
+ // Align on topleft corner.
+ gchar const *alignment = "[lt]";
+ gchar const *justification = "";
+ switch (flowtext->layout.paragraphAlignment(flowtext->layout.begin())) {
+ case Inkscape::Text::Layout::LEFT:
+ justification = "\\raggedright ";
+ break;
+ case Inkscape::Text::Layout::RIGHT:
+ justification = "\\raggedleft ";
+ break;
+ case Inkscape::Text::Layout::CENTER:
+ justification = "\\centering ";
+ case Inkscape::Text::Layout::FULL:
+ default:
+ // no need to add LaTeX code for standard justified output :)
+ break;
+ }
+ Geom::Point pos(framebox.corner(3)); //topleft corner
+
+ // determine color and transparency (for now, use rgb color model as it is most native to Inkscape)
+ bool has_color = false; // if the item has no color set, don't force black color
+ bool has_transparency = false;
+ // TODO: how to handle ICC colors?
+ // give priority to fill color
+ guint32 rgba = 0;
+ float opacity = SP_SCALE24_TO_FLOAT(style->opacity.value);
+ if (style->fill.set && style->fill.isColor()) {
+ has_color = true;
+ rgba = style->fill.value.color.toRGBA32(1.);
+ opacity *= SP_SCALE24_TO_FLOAT(style->fill_opacity.value);
+ } else if (style->stroke.set && style->stroke.isColor()) {
+ has_color = true;
+ rgba = style->stroke.value.color.toRGBA32(1.);
+ opacity *= SP_SCALE24_TO_FLOAT(style->stroke_opacity.value);
+ }
+ if (opacity < 1.0) {
+ has_transparency = true;
+ }
+
+ // get rotation
+ Geom::Matrix i2doc = item->i2doc_affine();
+ Geom::Matrix wotransl = i2doc.without_translation();
+ double degrees = -180/M_PI * Geom::atan2(wotransl.xAxis());
+ bool has_rotation = !Geom::are_near(degrees,0.);
// write to LaTeX
Inkscape::SVGOStringStream os;
- os.setf(std::ios::fixed); // no scientific notation
+ os.setf(std::ios::fixed); // don't use scientific notation
- os << " \\begin{picture}(" << _width << "," << _height << ")%%\n";
- os << " \\gplgaddtomacro\\gplbacktext{%%\n";
- os << " \\csname LTb\\endcsname%%\n";
- os << "\\put(0,0){\\makebox(0,0)[lb]{\\strut{}Position}}%%\n";
+ os << " \\put(" << pos[Geom::X] << "," << pos[Geom::Y] << "){";
+ if (has_color) {
+ os << "\\color[rgb]{" << SP_RGBA32_R_F(rgba) << "," << SP_RGBA32_G_F(rgba) << "," << SP_RGBA32_B_F(rgba) << "}";
+ }
+ if (_pdflatex && has_transparency) {
+ os << "\\transparent{" << opacity << "}";
+ }
+ if (has_rotation) {
+ os << "\\rotatebox{" << degrees << "}{";
+ }
+ os << "\\makebox(0,0)" << alignment << "{";
+ os << "\\begin{minipage}{" << framebox.width() << "\\unitlength}";
+ os << justification;
+ os << str;
+ os << "\\end{minipage}";
+ if (has_rotation) {
+ os << "}"; // rotatebox end
+ }
+ os << "}"; //makebox end
+ os << "}%\n"; // put end
fprintf(_stream, "%s", os.str().c_str());
-*/
}
void
@@ -379,15 +490,16 @@ LaTeXTextRenderer::setupDocument(SPDocument *doc, bool pageBoundingBox, SPItem *
{
// The boundingbox calculation here should be exactly the same as the one by CairoRenderer::setupDocument !
- if (!base)
- base = SP_ITEM(sp_document_root(doc));
+ if (!base) {
+ base = SP_ITEM(doc->getRoot());
+ }
Geom::OptRect d;
if (pageBoundingBox) {
d = Geom::Rect( Geom::Point(0,0),
- Geom::Point(sp_document_width(doc), sp_document_height(doc)) );
+ Geom::Point(doc->getWidth(), doc->getHeight()) );
} else {
- sp_item_invoke_bbox(base, d, sp_item_i2d_affine(base), TRUE, SPItem::RENDERING_BBOX);
+ base->invoke_bbox( d, base->i2d_affine(), TRUE, SPItem::RENDERING_BBOX);
}
if (!d) {
g_message("LaTeXTextRenderer: could not retrieve boundingbox.");
@@ -402,13 +514,11 @@ LaTeXTextRenderer::setupDocument(SPDocument *doc, bool pageBoundingBox, SPItem *
if (!pageBoundingBox)
{
- double high = sp_document_height(doc);
-
push_transform( Geom::Translate( - d->min() ) );
}
// flip y-axis
- push_transform( Geom::Scale(1,-1) * Geom::Translate(0, sp_document_height(doc)) );
+ push_transform( Geom::Scale(1,-1) * Geom::Translate(0, doc->getHeight()) );
// write the info to LaTeX
Inkscape::SVGOStringStream os;
@@ -416,12 +526,12 @@ LaTeXTextRenderer::setupDocument(SPDocument *doc, bool pageBoundingBox, SPItem *
// scaling of the image when including it in LaTeX
- os << " \\ifx \\svgwidth \\@empty\n";
+ os << " \\ifx\\svgwidth\\undefined\n";
os << " \\setlength{\\unitlength}{" << d->width() * PT_PER_PX << "pt}\n";
os << " \\else\n";
os << " \\setlength{\\unitlength}{\\svgwidth}\n";
os << " \\fi\n";
- os << " \\global\\let\\svgwidth\\@empty\n";
+ os << " \\global\\let\\svgwidth\\undefined\n";
os << " \\makeatother\n";
os << " \\begin{picture}(" << _width << "," << _height << ")%\n";
fill-column:99
End:
*/
-// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :