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c3a34a64f1
* undo_funcs.h: Removed setCursorParUndo to simplify things a bit. Renamed setUndo family to recordUndo. Renamed FINISH to ATOMIC which I think is a bit clearer. EDIT is gone, since it was premature optimisation, and broken for mathed anyway. * undo_funcs.C (performUndoOrRedo): Cleaned up and made it work with cursor positioning in insets as well (math insets still do not work, but that's a different story anyway.) It mysteriously crashes sometimes with undo in the first paragraph, but I'm fairly confident that this is a compiler bug. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@7358 a592a061-630c-0410-9148-cb99ea01b6c8
168 lines
2.9 KiB
C++
168 lines
2.9 KiB
C++
#ifndef METRICSINFO_H
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#define METRICSINFO_H
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#include "lyxfont.h"
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#include "LString.h"
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class Painter;
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class BufferView;
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/// Standard Sizes (mode styles)
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enum Styles {
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///
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LM_ST_DISPLAY = 0,
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///
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LM_ST_TEXT,
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///
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LM_ST_SCRIPT,
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///
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LM_ST_SCRIPTSCRIPT
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};
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//
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// This is the part common to MetricsInfo and PainterInfo
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//
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struct MetricsBase {
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///
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MetricsBase();
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///
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MetricsBase(BufferView * bv, LyXFont const & font, int textwidth);
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/// the current view
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BufferView * bv;
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/// current font
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LyXFont font;
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/// current math style (display/text/script/..)
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Styles style;
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/// name of current font - mathed specific
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string fontname;
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/// This is the width available in pixels
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int textwidth;
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};
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//
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// This contains a Metricsbase and Information that's only relevant during
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// the first phase of the two-phase draw
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//
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struct MetricsInfo {
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///
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MetricsInfo();
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///
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MetricsInfo(BufferView * bv, LyXFont const & font, int textwidth);
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///
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MetricsBase base;
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};
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//
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// This contains a Metricsbase and Information that's only relevant during
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// the second phase of the two-phase draw
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//
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struct PainterInfo {
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///
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explicit PainterInfo(BufferView * bv);
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///
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void draw(int x, int y, char c);
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///
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MetricsBase base;
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///
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Painter & pain;
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/// width of current item
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int width;
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};
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struct TextMetricsInfo {};
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// Generic base for temporarily changing things.
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// The original state gets restored when the Changer is destructed.
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template <class Struct, class Temp = Struct>
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struct Changer {
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///
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Changer(Struct & orig) : orig_(orig) {}
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protected:
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///
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Struct & orig_;
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///
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Temp save_;
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};
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// temporarily change some aspect of a font
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struct FontChanger : public Changer<LyXFont> {
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///
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FontChanger(LyXFont & orig, char const * font);
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///
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~FontChanger();
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};
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// temporarily change a full font
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struct FontSetChanger : public Changer<MetricsBase> {
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///
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FontSetChanger(MetricsBase & mb, char const * font);
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///
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~FontSetChanger();
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};
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// temporarily change the style
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struct StyleChanger : public Changer<MetricsBase> {
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///
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StyleChanger(MetricsBase & mb, Styles style);
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///
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~StyleChanger();
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};
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// temporarily change the style to script style
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struct ScriptChanger : public StyleChanger {
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///
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ScriptChanger(MetricsBase & mb);
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};
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// temporarily change the style suitable for use in fractions
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struct FracChanger : public StyleChanger {
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///
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FracChanger(MetricsBase & mb);
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};
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// temporarily change the style suitable for use in tabulars and arrays
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struct ArrayChanger : public StyleChanger {
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///
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ArrayChanger(MetricsBase & mb);
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};
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// temporarily change the shape of a font
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struct ShapeChanger : public Changer<LyXFont, LyXFont::FONT_SHAPE> {
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///
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ShapeChanger(LyXFont & font, LyXFont::FONT_SHAPE shape);
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///
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~ShapeChanger();
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};
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// temporarily change the available text width
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struct WidthChanger : public Changer<MetricsBase>
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{
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///
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WidthChanger(MetricsBase & mb, int width);
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///
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~WidthChanger();
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};
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#endif
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