* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
- * \author André Pönitz
+ * \author André Pönitz
+ * \author Stefan Schimanski
*
* Full author contact details are available in file CREDITS.
*/
#ifndef METRICSINFO_H
#define METRICSINFO_H
+#include "Changes.h"
#include "ColorCode.h"
#include "FontInfo.h"
-#include "support/docstring.h"
+
+#include "support/strfwd.h"
+#include "support/Changer.h"
+
+#include "insets/Inset.h"
+
+
#include <string>
-class BufferView;
namespace lyx {
namespace frontend { class Painter; }
-
-
-/// Standard Sizes (mode styles)
-enum Styles {
- ///
- LM_ST_DISPLAY = 0,
- ///
- LM_ST_TEXT,
- ///
- LM_ST_SCRIPT,
- ///
- LM_ST_SCRIPTSCRIPT
-};
+class BufferView;
+class Length;
+class MacroContext;
//
class MetricsBase {
public:
///
- MetricsBase();
- ///
- MetricsBase(BufferView * bv, FontInfo const & font, int textwidth);
+ MetricsBase(BufferView * bv = 0, FontInfo font = FontInfo(),
+ int textwidth = 0);
/// the current view
BufferView * bv;
/// current font
FontInfo font;
- /// current math style (display/text/script/..)
- Styles style;
/// name of current font - mathed specific
std::string fontname;
/// This is the width available in pixels
int textwidth;
+ /// count wether the current mathdata is nested in macro(s)
+ int macro_nesting;
+
+ /// Temporarily change a full font.
+ Changer changeFontSet(std::string const & name);
+ /// Temporarily change the font to math if needed.
+ Changer changeEnsureMath(Inset::mode_type mode = Inset::MATH_MODE);
+ // Temporarily change to the style suitable for use in fractions
+ Changer changeFrac();
+ // Temporarily change to the style suitable for use in arrays
+ // or to style suitable for smallmatrix when \c small is true.
+ Changer changeArray(bool small = false);
+ // Temporarily change the style to (script)script style
+ Changer changeScript();
+ ///
+ int solidLineThickness() const { return solid_line_thickness_; }
+ ///
+ int solidLineOffset() const { return solid_line_offset_; }
+ ///
+ int dottedLineThickness() const { return dotted_line_thickness_; }
+ /** return the on-screen size of this length
+ *
+ * This version of the function uses the current inset width as
+ * width and the EM value of the current font.
+ */
+ int inPixels(Length const & len) const;
+
+private:
+ int solid_line_thickness_;
+ int solid_line_offset_;
+ int dotted_line_thickness_;
};
///
MetricsInfo();
///
- MetricsInfo(BufferView * bv, FontInfo const & font, int textwidth);
+ MetricsInfo(BufferView * bv, FontInfo font, int textwidth,
+ MacroContext const & mc, bool vm, bool tight_insets);
///
MetricsBase base;
+ /// The context to resolve macros
+ MacroContext const & macrocontext;
+ /// Are we at the start of a paragraph (vertical mode)?
+ bool vmode;
+ /// if true, do not expand insets to max width artificially
+ bool tight_insets;
};
void draw(int x, int y, char_type c);
///
void draw(int x, int y, docstring const & str);
+ /// Determines the background color based on the
+ /// selection state, the background color inherited from the parent inset
+ /// and the inset's own background color (if one is specified).
+ /// \param sel whether to take the selection state into account
+ ColorCode backgroundColor(Inset const * inset = nullptr, bool sel = true) const;
+
+ /// Determines the text color based on the intended color, the
+ /// change tracking state and the selection state.
+ /// \param color what the color should be by default
+ Color textColor(Color const & color) const;
///
MetricsBase base;
///
frontend::Painter & pain;
- /// Whether the text at this point is right-to-left (for InsetNewline)
+ /// Whether the text at this point is right-to-left (for insets)
bool ltr_pos;
- /// Whether the parent is deleted (change tracking)
- bool erased_;
- ///
+ /// The change the parent is part of (change tracking)
+ Change change;
+ /// Whether the parent is selected as a whole
+ bool selected;
+ /// Whether the left/right margins are selected
+ bool selected_left, selected_right;
+ /// Whether the spell checker is enabled for the parent
+ bool do_spellcheck;
+ /// True when it can be assumed that the screen has been cleared
bool full_repaint;
- ///
+ /// Current background color
ColorCode background_color;
+ /// The left and right position of current line (inside margins).
+ /// Useful for drawing display math numbering
+ int leftx, rightx;
};
class TextMetricsInfo {};
-enum ScreenUpdateStrategy {
- NoScreenUpdate,
- SingleParUpdate,
- FullScreenUpdate,
- DecorationUpdate
-};
-
-class ViewMetricsInfo
-{
-public:
- ViewMetricsInfo()
- : p1(0), p2(0), y1(0), y2(0),
- update_strategy(FullScreenUpdate), size(0)
- {}
- ViewMetricsInfo(pit_type p1, pit_type p2, int y1, int y2,
- ScreenUpdateStrategy updatestrategy, pit_type size)
- : p1(p1), p2(p2), y1(y1), y2(y2),
- update_strategy(updatestrategy), size(size)
- {}
-
- pit_type p1;
- pit_type p2;
- int y1;
- int y2;
- ScreenUpdateStrategy update_strategy;
- pit_type size;
-};
-
-
-// Generic base for temporarily changing things.
-// The original state gets restored when the Changer is destructed.
-
-template <class Struct, class Temp = Struct>
-class Changer {
-public:
- ///
- Changer(Struct & orig) : orig_(orig) {}
-protected:
- ///
- Struct & orig_;
- ///
- Temp save_;
-};
-
-
-
-// temporarily change some aspect of a font
-class FontChanger : public Changer<FontInfo> {
-public:
- ///
- FontChanger(FontInfo & orig, docstring const & font);
- FontChanger(MetricsBase & mb, char const * const font);
- ///
- ~FontChanger();
-};
-
-
-// temporarily change a full font
-class FontSetChanger : public Changer<MetricsBase> {
-public:
- ///
- FontSetChanger(MetricsBase & mb, docstring const & font);
- FontSetChanger(MetricsBase & mb, char const * const font);
- ///
- ~FontSetChanger();
-};
-
-
-// temporarily change the style
-class StyleChanger : public Changer<MetricsBase> {
-public:
- ///
- StyleChanger(MetricsBase & mb, Styles style);
- ///
- ~StyleChanger();
-};
-
-
-// temporarily change the style to script style
-class ScriptChanger : public StyleChanger {
-public:
- ///
- ScriptChanger(MetricsBase & mb);
-};
-
-
-// temporarily change the style suitable for use in fractions
-class FracChanger : public StyleChanger {
-public:
- ///
- FracChanger(MetricsBase & mb);
-};
-
-
-// temporarily change the style suitable for use in tabulars and arrays
-class ArrayChanger : public StyleChanger {
-public:
- ///
- ArrayChanger(MetricsBase & mb);
-};
-
-
-
-// temporarily change the shape of a font
-class ShapeChanger : public Changer<FontInfo, FontShape> {
-public:
- ///
- ShapeChanger(FontInfo & font, FontShape shape);
- ///
- ~ShapeChanger();
-};
-
-
-// temporarily change the available text width
-class WidthChanger : public Changer<MetricsBase>
-{
-public:
- ///
- WidthChanger(MetricsBase & mb, int width);
- ///
- ~WidthChanger();
-};
-
-
-// temporarily change the used color
-class ColorChanger : public Changer<FontInfo, std::string> {
-public:
- ///
- ColorChanger(FontInfo & font, std::string const & color);
- ///
- ~ColorChanger();
-};
-
} // namespace lyx
#endif
projects / lyx.git / blobdiff