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diff --git a/src/extension/internal/latex-text-renderer.cpp b/src/extension/internal/latex-text-renderer.cpp
index e07b17fb83b8ce8a431ff9bdf8d13f547f528fe0..28bba1bebcec4271a54e4cfa7e434525d024825d 100644 (file)
#include "sp-use.h"
#include "sp-text.h"
#include "sp-flowtext.h"
+#include "sp-rect.h"
#include "text-editing.h"
#include <unit-constants.h>
* @param filename This should be the filename without extension to which the tex code should be written. Output goes to <filename>.tex.
*/
bool
-latex_render_document_text_to_file( SPDocument *doc, gchar const *filename,
- const gchar * const exportId, bool exportDrawing, bool exportCanvas)
+latex_render_document_text_to_file( SPDocument *doc, gchar const *filename,
+ const gchar * const exportId, bool exportDrawing, bool exportCanvas,
+ bool pdflatex)
{
sp_document_ensure_up_to_date(doc);
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());
}
LaTeXTextRenderer::setTargetFile(gchar const *filename) {
if (filename != NULL) {
while (isspace(*filename)) filename += 1;
-
+
_filename = g_path_get_basename(filename);
gchar *filename_ext = g_strdup_printf("%s.tex", filename);
fprintf(_stream, "%%%% Creator: Inkscape %s, www.inkscape.org\n", PACKAGE_STRING);
fprintf(_stream, "%%%% PDF/EPS/PS + LaTeX output extension by Johan Engelen, 2010\n");
fprintf(_stream, "%%%% Accompanies image file '%s' (pdf, eps, ps)\n", _filename);
- fprintf(_stream, "%%%%");
+ fprintf(_stream, "%%%%\n");
/* flush this to test output stream as early as possible */
if (fflush(_stream)) {
if (ferror(_stream)) {
static char const preamble[] =
"%% To include the image in your LaTeX document, write\n"
-"%% \\setlength{\\unitlength}{<desired width>}\n"
"%% \\input{<filename>.tex}\n"
-"%% instead of\n"
+"%% instead of\n"
+"%% \\includegraphics{<filename>.pdf}\n"
+"%% To scale the image, write\n"
+"%% \\def{\\svgwidth}{<desired width>}\n"
+"%% \\input{<filename>.tex}\n"
+"%% instead of\n"
"%% \\includegraphics[width=<desired width>]{<filename>.pdf}\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"
-" \\renewcommand\\color[2][]{}% \n"
-" }%% \n"
-" \\providecommand\\rotatebox[2]{#2}% \n"
-" \\makeatother \n";
+"\\begingroup\n"
+" \\makeatletter\n"
+" \\providecommand\\color[2][]{%\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[] =
-" \\end{picture}% \n"
-"\\endgroup \n";
+" \\end{picture}%\n"
+"\\endgroup\n";
void
LaTeXTextRenderer::writePreamble()
void
LaTeXTextRenderer::sp_use_render(SPItem *item)
{
-/*
bool translated = false;
SPUse *use = SP_USE(item);
if (translated) {
pop_transform();
}
-*/
}
void
SPStyle *style = SP_OBJECT_STYLE (SP_OBJECT(item));
gchar *str = sp_te_get_string_multiline(item);
+ if (!str) {
+ return;
+ }
// get position and alignment
- Geom::Point pos;
- gchar *alignment = NULL;
- Geom::OptRect bbox = item->getBounds(transform());
- Geom::Interval bbox_x = (*bbox)[Geom::X];
- Geom::Interval bbox_y = (*bbox)[Geom::Y];
+ // Align vertically on the baseline of the font (retreived from the anchor point)
+ // Align horizontally on anchorpoint
+ gchar const *alignment = NULL;
switch (style->text_anchor.computed) {
case SP_CSS_TEXT_ANCHOR_START:
- pos = Geom::Point( bbox_x.min() , bbox_y.middle() );
- alignment = "[l]";
+ alignment = "[lb]";
break;
case SP_CSS_TEXT_ANCHOR_END:
- pos = Geom::Point( bbox_x.max() , bbox_y.middle() );
- alignment = "[r]";
+ alignment = "[rb]";
break;
case SP_CSS_TEXT_ANCHOR_MIDDLE:
default:
- pos = bbox->midpoint();
- alignment = "";
+ alignment = "[b]";
break;
}
+ 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;
- if (style->fill.set && style->fill.isColor()) {
+ 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.);
- } else if (style->stroke.set && style->stroke.isColor()) {
+ 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);
// write to LaTeX
Inkscape::SVGOStringStream os;
+ os.setf(std::ios::fixed); // don't use scientific notation
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) << "}";
}
- os << "\\makebox(0,0)" << alignment << "{";
+ if (_pdflatex && has_transparency) {
+ os << "\\transparent{" << opacity << "}";
+ }
if (has_rotation) {
os << "\\rotatebox{" << degrees << "}{";
}
- os << str;
+ os << "\\makebox(0,0)" << alignment << "{";
+ os << "\\smash{" << str << "}"; // smash the text, to be able to put the makebox coordinates at the baseline
if (has_rotation) {
os << "}"; // rotatebox end
}
}
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);
+
+ if (!flowtext->has_internal_frame()) {
+ // has_internal_frame includes a check that frame is a SPRect
+ 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(flowtext->get_frame(NULL));
+ 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 = sp_item_i2doc_affine(item);
+ 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); // 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
@@ -386,6 +488,10 @@ LaTeXTextRenderer::setupDocument(SPDocument *doc, bool pageBoundingBox, SPItem *
} else {
sp_item_invoke_bbox(base, d, sp_item_i2d_affine(base), TRUE, SPItem::RENDERING_BBOX);
}
+ if (!d) {
+ g_message("LaTeXTextRenderer: could not retrieve boundingbox.");
+ return false;
+ }
// scale all coordinates, such that the width of the image is 1, this is convenient for scaling the image in LaTeX
double scale = 1/(d->width());
@@ -395,8 +501,6 @@ LaTeXTextRenderer::setupDocument(SPDocument *doc, bool pageBoundingBox, SPItem *
if (!pageBoundingBox)
{
- double high = sp_document_height(doc);
-
push_transform( Geom::Translate( - d->min() ) );
}
@@ -405,6 +509,17 @@ LaTeXTextRenderer::setupDocument(SPDocument *doc, bool pageBoundingBox, SPItem *
// write the info to LaTeX
Inkscape::SVGOStringStream os;
+ os.setf(std::ios::fixed); // no scientific notation
+
+ // scaling of the image when including it in LaTeX
+
+ 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\\undefined\n";
+ os << " \\makeatother\n";
os << " \\begin{picture}(" << _width << "," << _height << ")%\n";
// strip pathname, as it is probably desired. Having a specific path in the TeX file is not convenient.