#include "BufferView.h"
#include "gettext.h"
#include "debug.h"
-#include "frontends/Alert.h"
#include "support/LOstream.h"
#include "support/LAssert.h"
-#include "support/filetools.h" // LibFileSearch
+#include "support/lyxlib.h"
+#include "support/systemcall.h"
+#include "support/filetools.h"
+#include "frontends/Alert.h"
#include "frontends/LyXView.h"
#include "frontends/Painter.h"
+#include "graphics/GraphicsImage.h"
#include "lyxrc.h"
#include "math_hullinset.h"
#include "math_support.h"
#include "textpainter.h"
#include "preview.h"
-#include "graphics/GraphicsCacheItem.h"
+#include <fstream>
+#include <boost/bind.hpp>
+#include <boost/utility.hpp>
using std::ostream;
using std::ifstream;
InsetFormula::InsetFormula()
: par_(MathAtom(new MathHullInset))
-{}
+{
+ init();
+}
+
+
+InsetFormula::InsetFormula(InsetFormula const & f)
+ : InsetFormulaBase(f), par_(f.par_), loader_(f.loader_.filename())
+{
+ init();
+}
InsetFormula::InsetFormula(MathInsetTypes t)
: par_(MathAtom(new MathHullInset(t)))
-{}
+{
+ init();
+}
InsetFormula::InsetFormula(string const & s)
par_ = MathAtom(new MathHullInset(LM_OT_SIMPLE));
}
}
+ init();
metrics();
}
void InsetFormula::draw(BufferView * bv, LyXFont const & font,
int y, float & xx, bool) const
{
- metrics(bv, font);
-
int const x = int(xx);
- int const w = par_->width();
- int const h = par_->height();
- int const a = par_->ascent();
+ int const w = width(bv, font);
+ int const d = descent(bv, font);
+ int const a = ascent(bv, font);
+ int const h = a + d;
MathPainterInfo pi(bv->painter());
- pi.base.style = display() ? LM_ST_DISPLAY : LM_ST_TEXT;
- pi.base.font = font;
- pi.base.font.setColor(LColor::math);
-
- if (lcolor.getX11Name(LColor::mathbg)!=lcolor.getX11Name(LColor::background))
- pi.pain.fillRectangle(x, y - a, w, h, LColor::mathbg);
-
- if (mathcursor &&
- const_cast<InsetFormulaBase const *>(mathcursor->formula()) == this)
- {
- mathcursor->drawSelection(pi);
- pi.pain.rectangle(x, y - a, w, h, LColor::mathframe);
- }
- par_->draw(pi, x, y);
-
- // preview stuff
- if (lyxrc.preview) {
- ostringstream os;
- WriteStream wi(os, false, false);
- par_->write(wi);
- if (preview(os.str(), preview_)) {
- lyxerr << "image could be drawn\n";
- pi.pain.image(x + w + 2, y - a + 1, w - 2, h - 2, *(preview_->image()));
- } else {
- pi.pain.fillRectangle(x + w, y - a, w, h, LColor::white);
+ if (canPreview()) {
+ pi.pain.image(x + 1, y - a + 1, w - 2, h - 2, *(loader_.image()));
+ } else {
+ pi.base.style = display() ? LM_ST_DISPLAY : LM_ST_TEXT;
+ pi.base.font = font;
+ pi.base.font.setColor(LColor::math);
+ if (lcolor.getX11Name(LColor::mathbg)
+ != lcolor.getX11Name(LColor::background))
+ pi.pain.fillRectangle(x, y - a, w, h, LColor::mathbg);
+
+ if (mathcursor &&
+ const_cast<InsetFormulaBase const *>(mathcursor->formula()) == this)
+ {
+ mathcursor->drawSelection(pi);
+ pi.pain.rectangle(x, y - a, w, h, LColor::mathframe);
}
- pi.pain.rectangle(x + w, y - a, w, h, LColor::mathframe);
- xx += w;
+
+ par_->draw(pi, x, y);
}
xx += w;
int InsetFormula::ascent(BufferView *, LyXFont const &) const
{
- return par_->ascent() + 1;
+ const int a = par_->ascent();
+ if (!canPreview())
+ return a + 1;
+ return a + 1 - (par_->height() - loader_.image()->getHeight()) / 2;
}
int InsetFormula::descent(BufferView *, LyXFont const &) const
{
- return par_->descent() + 1;
+ const int d = par_->descent();
+ if (!canPreview())
+ return d + 1;
+ return d + 1 - (par_->height() - loader_.image()->getHeight()) / 2;
}
int InsetFormula::width(BufferView * bv, LyXFont const & font) const
{
metrics(bv, font);
- int const w = par_->width();
- // double the space for the preview if needed
- return lyxrc.preview ? 2 * w : w;
+ return canPreview() ? loader_.image()->getWidth() : par_->width();
}
{
return hull()->getType();
}
+
+
+//
+// preview stuff
+//
+
+bool InsetFormula::canPreview() const
+{
+ return lyxrc.preview && !par_->asNestInset()->editing()
+ && loader_.status() == grfx::Ready;
+}
+
+
+void InsetFormula::statusChanged()
+{
+ //lyxerr << "### InsetFormula::statusChanged called!, status: "
+ // << loader_.status() << "\n";
+ if (loader_.status() == grfx::Ready)
+ view()->updateInset(this, false);
+ else if (loader_.status() == grfx::WaitingToLoad)
+ loader_.startLoading();
+}
+
+
+void InsetFormula::init()
+{
+ if (lyxrc.preview)
+ loader_.statusChanged.connect
+ (boost::bind(&InsetFormula::statusChanged, this));
+}
+
+
+void InsetFormula::updatePreview() const
+{
+ // nothing to be done if no preview requested
+ if (!lyxrc.preview)
+ return;
+ //lyxerr << "### updatePreview() called\n";
+
+ // get LaTeX
+ ostringstream ls;
+ WriteStream wi(ls, false, false);
+ par_->write(wi);
+ string const data = ls.str();
+
+ // built some unique filename
+ ostringstream os;
+ os << "preview_";
+ for (string::const_iterator it = data.begin(); it != data.end(); ++it)
+ os << char('A' + (*it & 15)) << char('a' + (*it >> 4));
+ string base = os.str();
+ string dir = OnlyPath(lyx::tempName());
+ string file = dir + base + ".eps";
+
+ // everything is fine already
+ if (loader_.filename() == file)
+ return;
+
+ // The real work starts.
+ string const texfile = dir + base + ".tex";
+ std::ofstream of(texfile.c_str());
+ of << "\\batchmode"
+ << "\\documentclass{article}"
+ << "\\usepackage{amssymb}"
+ << "\\thispagestyle{empty}"
+ << "\\pdfoutput=0"
+ << "\\begin{document}"
+ << data
+ << "\\end{document}\n";
+ of.close();
+
+ string const cmd =
+// "latex " + base + ".tex ; " + "
+// "dvips -x 2500 -R -E -o " + base + ".eps " + base + ".dvi ";
+ // Herbert says this is faster
+ "pdflatex --interaction batchmode " + base + "; " +
+ "dvips -x 2000 -R -E -o " + base + ".eps " + base + ".dvi ";
+ //lyxerr << "calling: '" << "(cd " + dir + "; " + cmd + ")\n";
+ Systemcall sc;
+ sc.startscript(Systemcall::Wait, "(cd " + dir + "; " + cmd + ")");
+
+ // now we are done, start actual loading
+ loader_.reset(file);
+ //lyxerr << "file '" << file << "' registered for preview\n";
+
+ // clean up a bit
+ lyx::unlink(dir + base + ".tex");
+ lyx::unlink(dir + base + ".aux");
+ lyx::unlink(dir + base + ".dvi");
+ lyx::unlink(dir + base + ".log");
+}
-#include <config.h>
-
-#include "debug.h"
-#include "support/systemcall.h"
-#include "graphics/GraphicsTypes.h"
-#include "graphics/GraphicsImage.h"
-#include "graphics/GraphicsCache.h"
-#include "graphics/GraphicsImage.h"
-#include "graphics/GraphicsParams.h"
-#include "graphics/GraphicsCacheItem.h"
-#include "Lsstream.h"
-
-#include <fstream>
-
-#include <boost/utility.hpp>
-#include <boost/bind.hpp>
-
-using namespace std;
-
-
-// built some unique filename
-string canonical_name(string const & str)
-{
- ostringstream os;
- for (string::const_iterator it = str.begin(); it != str.end(); ++it)
- os << char('A' + (*it & 15)) << char('a' + (*it >> 4));
- return os.str();
-}
-
-
-bool preview(string const & str, grfx::GraphicPtr & graphic)
-{
- string base = canonical_name(str);
- string dir = "/tmp/lyx/";
- string file = dir + base + ".eps";
- cerr << "writing '" << str << "' to '" << file << "'\n";
-
- // get the cache
- grfx::GCache & gc = grfx::GCache::get();
-
- // look up the file
- if (gc.inCache(file)) {
-
- // it's already in there. Get hold of it.
- grfx::GraphicPtr gr = grfx::GraphicPtr(gc.graphic(file));
-
- // is it already loaded?
- if (gr->status() == grfx::Loaded) {
- cerr << "file '" << file << "' ready for display\n";
- graphic = gr;
- grfx::GParams pars;
- bool const res = graphic->image()->setPixmap(pars);
- return res;
- }
-
- // otherwise we have to wait again
- cerr << "file '" << file << "' not finished loading\n";
- return false;
- }
-
- // The real work starts.
- string const texfile = dir + base + ".tex";
- std::ofstream of(texfile.c_str());
- of << "\\batchmode"
- << "\\documentclass{article}"
- << "\\usepackage{amssymb}"
- << "\\thispagestyle{empty}"
- << "\\pdfoutput=0"
- << "\\begin{document}"
- << str
- << "\\end{document}\n";
- of.close();
-
- string const cmd =
-// "latex " + base + ".tex ; " + "
-// "dvips -x 2500 -R -E -o " + base + ".eps " + base + ".dvi ";
- // Herbert says this is faster
- "pdflatex --interaction batchmode " + base + "; " +
- "dvips -x 2000 -R -E -o " + base + ".eps " + base + ".dvi ";
- //cerr << "calling: '" << "(cd " + dir + "; " + cmd + ")\n";
- Systemcall sc;
- sc.startscript(Systemcall::Wait, "(cd " + dir + "; " + cmd + ")");
-
- // now we are done, add the file to the cache
- gc.add(file);
- gc.graphic(file)->startLoading();
-
- // This might take a while. Wait for the next round.
- cerr << "file '" << file << "' registered\n";
- return false;
-}
+// code is currently directly inseide InsetFormula
projects / lyx.git / commitdiff