lyx_mirror/src/insets/InsetPreview.h
Guillaume Munch 8e1a869c45 Change tracking cue: for instant preview
Strike through deleted previews (expect for inline math where it is already taken care of by RowPainter).
2016-07-03 17:28:47 +02:00

96 lines
2.0 KiB
C++

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