anne/lyx_mirror
1
0
Fork 0
mirror of https://git.lyx.org/repos/lyx.git synced 2024-11-22 01:59:02 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Factor out the list of macro definitions for InsetPreview.

Browse Source 
This will be soon reused in InsetText to generate images for DocBook.
This commit is contained in:
Thibaut Cuvelier 2021-10-08 03:14:18 +02:00
parent 48a507694e
commit 46b8101800
3 changed files with 38 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/DocIterator.h
View File

@ -28,8 +28,8 @@ class MathAtom;
class Paragraph;
class Text;
DocIterator doc_iterator_begin(Buffer const * buf, Inset const * inset = 0);
DocIterator doc_iterator_end(Buffer const * buf, Inset const * inset = 0);
DocIterator doc_iterator_begin(Buffer const * buf, Inset const * inset = nullptr);
DocIterator doc_iterator_end(Buffer const * buf, Inset const * inset = nullptr);
class DocIterator

53
src/insets/InsetPreview.cpp
View File

@ -79,6 +79,34 @@ void InsetPreview::addPreview(DocIterator const & inset_pos,
}
MacroNameSet gatherMacroDefinitions(const Buffer* buffer, const Inset * inset)
{
// Collect macros for this inset.
// Not done yet: this function returns a list of macro *definitions*.
MacroNameSet macros;
buffer->listMacroNames(macros);
// Look for math insets and collect definitions for the used macros.
MacroNameSet defs;
DocIterator const dbeg = doc_iterator_begin(buffer, inset);
DocIterator dit = dbeg;
DocIterator const dend = doc_iterator_end(buffer, inset);
if (!dit.nextInset())
dit.forwardInset();
for (; dit != dend; dit.forwardInset()) {
InsetMath * im = dit.nextInset()->asInsetMath();
InsetMathHull * hull = im ? im->asHullInset() : nullptr;
if (!hull)
continue;
for (idx_type idx = 0; idx < hull->nargs(); ++idx)
hull->usedMacros(hull->cell(idx), dbeg, macros, defs);
}
return defs;
}
void InsetPreview::preparePreview(DocIterator const & pos) const
{
odocstringstream str;
@ -86,29 +114,10 @@ void InsetPreview::preparePreview(DocIterator const & pos) const
OutputParams runparams(&pos.buffer()->params().encoding());
latex(os, runparams);
// collect macros at this position
MacroNameSet macros;
pos.buffer()->listMacroNames(macros);
// look for math insets and collect definitions for the used macros
MacroNameSet defs;
DocIterator dit = doc_iterator_begin(pos.buffer(), this);
DocIterator const dend = doc_iterator_end(pos.buffer(), this);
if (!dit.nextInset())
dit.forwardInset();
for (; dit != dend; dit.forwardInset()) {
InsetMath * im = dit.nextInset()->asInsetMath();
InsetMathHull * hull = im ? im->asHullInset() : nullptr;
if (!hull)
continue;
for (idx_type idx = 0; idx < hull->nargs(); ++idx)
hull->usedMacros(hull->cell(idx), pos, macros, defs);
}
MacroNameSet::iterator it = defs.begin();
MacroNameSet::iterator end = defs.end();
MacroNameSet defs = gatherMacroDefinitions(pos.buffer(), this);
docstring macro_preamble;
for (; it != end; ++it)
macro_preamble.append(*it);
for (const auto& def : defs)
macro_preamble.append(def);
docstring const snippet = macro_preamble + str.str();
preview_->addPreview(snippet, *pos.buffer());

5
src/insets/InsetPreview.h
View File

@ -20,6 +20,7 @@
namespace lyx {
class Dimension;
class MacroNameSet;
class RenderPreview;
namespace graphics {
@ -87,6 +88,10 @@ protected:
};
/// gathers the list of macro definitions used in the given inset
MacroNameSet gatherMacroDefinitions(const Buffer* buffer, const Inset * inset);
} // namespace lyx