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102 lines
2.4 KiB
C++
102 lines
2.4 KiB
C++
// -*- C++ -*-
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/**
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* \file InsetPreview.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Vincent van Ravesteijn
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef INSETPREVIEW_H
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#define INSETPREVIEW_H
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#include "InsetText.h"
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#include "support/unique_ptr.h"
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namespace lyx {
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class Dimension;
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class MacroNameSet;
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class RenderPreview;
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namespace graphics {
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class PreviewLoader;
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}
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/// An inset with an instant preview
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class InsetPreview : public InsetText {
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public:
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///
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explicit InsetPreview(Buffer *);
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///
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~InsetPreview();
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///
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InsetPreview(InsetPreview const & other);
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///
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InsetPreview & operator=(InsetPreview const & other);
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/// \name Methods inherited from Inset class
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//@{
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Inset * clone() const override { return new InsetPreview(*this); }
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bool neverIndent() const override { return true; }
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InsetCode lyxCode() const override { return PREVIEW_CODE; }
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docstring layoutName() const override { return from_ascii("Preview"); }
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bool descendable(BufferView const & /*bv*/) const override { return true; }
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std::string contextMenuName() const override
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{ return "context-preview"; }
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void metrics(MetricsInfo & mi, Dimension & dim) const override;
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Inset * editXY(Cursor & cur, int x, int y) override;
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void draw(PainterInfo & pi, int x, int y) const override;
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void addPreview(DocIterator const & inset_pos,
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graphics::PreviewLoader & ploader) const override;
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bool notifyCursorLeaves(Cursor const & old, Cursor & cur) override;
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void write(std::ostream & os) const override;
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void edit(Cursor & cur, bool front, EntryDirection entry_from) override;
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bool canPaintChange(BufferView const &) const override { return true; }
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//@}
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protected:
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/// Retrieves the preview state. Returns true if preview
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/// is enabled and the preview image is available.
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bool previewState(BufferView * bv) const;
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/// Recreates the preview if preview is enabled.
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void reloadPreview(DocIterator const & pos) const;
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/// Prepare the preview if preview is enabled.
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void preparePreview(DocIterator const & pos) const;
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///
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unique_ptr<RenderPreview> preview_;
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};
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/// gathers the list of macro definitions used in the given inset
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MacroNameSet gatherMacroDefinitions(const Buffer* buffer, const Inset * inset);
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/// returns the LaTeX snippet to compute the preview of the given inset
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docstring insetToLaTeXSnippet(const Buffer* buffer, const Inset * inset);
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} // namespace lyx
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#endif
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