#include "PreviewLoader.h"
#include "PreviewImage.h"
+#include "GraphicsCache.h"
#include "buffer.h"
#include "converter.h"
#include "support/forkedcontr.h"
#include "support/lstrings.h"
#include "support/lyxlib.h"
-#include "support/tostr.h"
+#include "support/convert.h"
#include <boost/bind.hpp>
-#include "support/std_sstream.h"
+#include <sstream>
#include <fstream>
#include <iomanip>
/// Store info on a currently executing, forked process.
-struct InProgress {
+class InProgress {
+public:
///
InProgress() : pid(0) {}
///
namespace lyx {
namespace graphics {
-struct PreviewLoader::Impl : public boost::signals::trackable {
+class PreviewLoader::Impl : public boost::signals::trackable {
+public:
///
Impl(PreviewLoader & p, Buffer const & b);
/// Stop any InProgress items still executing.
void startLoading();
/// Emit this signal when an image is ready for display.
- boost::signal1<void, PreviewImage const &> imageReady;
+ boost::signal<void(PreviewImage const &)> imageReady;
Buffer const & buffer() const { return buffer_; }
namespace {
-struct IncrementedFileName {
+class IncrementedFileName {
+public:
IncrementedFileName(string const & to_format,
string const & filename_base)
: to_format_(to_format), base_(filename_base), counter_(1)
: parent_(p), buffer_(b), font_scaling_factor_(0.0)
{
font_scaling_factor_ = 0.01 * lyxrc.dpi * lyxrc.zoom *
- lyxrc.preview_scale_factor;
+ convert<double>(lyxrc.preview_scale_factor);
lyxerr[Debug::GRAPHICS] << "The font scaling factor is "
<< font_scaling_factor_ << endl;
namespace {
-struct EraseSnippet {
+class EraseSnippet {
+public:
EraseSnippet(string const & s) : snippet_(s) {}
void operator()(InProgressProcess & process)
{
// The conversion command.
ostringstream cs;
- cs << pconverter_->command << ' ' << latexfile << ' '
- << int(font_scaling_factor_) << ' ' << pconverter_->to;
+ cs << pconverter_->command << ' ' << pconverter_->to << ' '
+ << latexfile << ' ' << int(font_scaling_factor_) << ' '
+ << lyx_gui::hexname(LColor::preview) << ' '
+ << lyx_gui::hexname(LColor::background);
- string const command = "sh " + support::LibScriptSearch(cs.str());
+ string const command = support::LibScriptSearch(cs.str());
// Initiate the conversion from LaTeX to bitmap images files.
support::Forkedcall::SignalTypePtr
if (ret != 0) {
lyxerr[Debug::GRAPHICS] << "PreviewLoader::startLoading()\n"
- << "Unable to start process \n"
+ << "Unable to start process\n"
<< command << endl;
return;
}
InsetIterator const end = inset_iterator_end(inset);
for (; it != end; ++it)
- if (it->lyxCode() == InsetOld::MATHMACRO_CODE)
+ if (it->lyxCode() == InsetBase::MATHMACRO_CODE)
it->latex(buffer_, os, runparams);
// All equation lables appear as "(#)" + preview.sty's rendering of
// Use the preview style file to ensure that each snippet appears on a
// fresh page.
os << "\n"
- << "\\usepackage[active,delayed,dvips,tightpage,showlabels,lyx]{preview}\n"
+ << "\\usepackage[active,delayed,dvips,showlabels,lyx]{preview}\n"
<< "\n";
-
- // This piece of PostScript magic ensures that the foreground and
- // background colors are the same as the LyX screen.
- string fg = lyx_gui::hexname(LColor::preview);
- if (fg.empty()) fg = "000000";
-
- string bg = lyx_gui::hexname(LColor::background);
- if (bg.empty()) bg = "ffffff";
-
- os << "\\AtBeginDocument{\\AtBeginDvi{%\n"
- << "\\special{!userdict begin/bop-hook{//bop-hook exec\n"
- << '<' << fg << bg << ">{255 div}forall setrgbcolor\n"
- << "clippath fill setrgbcolor}bind def end}}}\n";
}
string const unique_filename(string const bufferpath)
{
static int theCounter = 0;
- string const filename = tostr(theCounter++) + "lyxpreview";
+ string const filename = convert<string>(theCounter++) + "lyxpreview";
return support::AddName(bufferpath, filename);
}
{
string const from = "lyxpreview";
- Formats::FormatList::const_iterator it = formats.begin();
- Formats::FormatList::const_iterator end = formats.end();
+ typedef vector<string> FmtList;
+ typedef lyx::graphics::Cache GCache;
+ FmtList const loadableFormats = GCache::get().loadableFormats();
+ FmtList::const_iterator it = loadableFormats.begin();
+ FmtList::const_iterator const end = loadableFormats.end();
for (; it != end; ++it) {
- string const to = it->name();
+ string const to = *it;
if (from == to)
continue;
bool error = false;
- // Tightpage dimensions affect all subsequent dimensions
- int tp_ascent;
- int tp_descent;
+ int snippet_counter = 1;
+ while (!in.eof() && it != end) {
+ string snippet;
+ int id;
+ double ascent_fraction;
- int snippet_counter = 0;
- while (!in.eof()) {
- // Expecting lines of the form
- // Preview: Tightpage tp_bl_x tp_bl_y tp_tr_x tp_tr_y
- // Preview: Snippet id ascent descent width
- string preview;
- string type;
- in >> preview >> type;
+ in >> snippet >> id >> ascent_fraction;
if (!in.good())
// eof after all
break;
- error = preview != "Preview:"
- || (type != "Tightpage" && type != "Snippet");
+ error = snippet != "Snippet";
if (error)
break;
- if (type == "Tightpage") {
- int dummy;
- in >> dummy >> tp_descent >> dummy >> tp_ascent;
-
- error = !in.good();
- if (error)
- break;
-
- } else {
- int dummy;
- int snippet_id;
- int ascent;
- int descent;
- in >> snippet_id >> ascent >> descent >> dummy;
-
- error = !in.good() || ++snippet_counter != snippet_id;
- if (error)
- break;
-
- double const a = ascent + tp_ascent;
- double const d = descent - tp_descent;
+ error = id != snippet_counter;
+ if (error)
+ break;
- if (!support::float_equal(a + d, 0, 0.1))
- *it = a / (a + d);
+ *it = ascent_fraction;
- if (++it == end)
- break;
- }
+ ++snippet_counter;
+ ++it;
}
if (error) {
projects / lyx.git / blobdiff