mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-12-26 22:17:41 +00:00
d77b05db80
A basic class like Length should not depend on something from frontend. This change allows to remove several dummy implementations of theFontMetrics().
152 lines
3.8 KiB
C++
152 lines
3.8 KiB
C++
// -*- C++ -*-
|
|
/**
|
|
* \file MetricsInfo.h
|
|
* This file is part of LyX, the document processor.
|
|
* Licence details can be found in the file COPYING.
|
|
*
|
|
* \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/strfwd.h"
|
|
#include "support/Changer.h"
|
|
|
|
#include "insets/Inset.h"
|
|
|
|
|
|
#include <string>
|
|
|
|
|
|
namespace lyx {
|
|
|
|
namespace frontend { class Painter; }
|
|
class BufferView;
|
|
class Length;
|
|
class MacroContext;
|
|
|
|
|
|
//
|
|
// This is the part common to MetricsInfo and PainterInfo
|
|
//
|
|
class MetricsBase {
|
|
public:
|
|
///
|
|
MetricsBase(BufferView * bv = 0, FontInfo font = FontInfo(),
|
|
int textwidth = 0);
|
|
|
|
/// the current view
|
|
BufferView * bv;
|
|
/// current font
|
|
FontInfo font;
|
|
/// 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 & font);
|
|
/// 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
|
|
Changer changeArray();
|
|
// 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_;
|
|
};
|
|
|
|
|
|
//
|
|
// This contains a MetricsBase and information that's only relevant during
|
|
// the first phase of the two-phase draw
|
|
//
|
|
class MetricsInfo {
|
|
public:
|
|
///
|
|
MetricsInfo();
|
|
///
|
|
MetricsInfo(BufferView * bv, FontInfo font, int textwidth,
|
|
MacroContext const & mc);
|
|
|
|
///
|
|
MetricsBase base;
|
|
/// The context to resolve macros
|
|
MacroContext const & macrocontext;
|
|
};
|
|
|
|
|
|
//
|
|
// This contains a MetricsBase and information that's only relevant during
|
|
// the second phase of the two-phase draw
|
|
//
|
|
class PainterInfo {
|
|
public:
|
|
///
|
|
PainterInfo(BufferView * bv, frontend::Painter & pain);
|
|
///
|
|
void draw(int x, int y, char_type c);
|
|
///
|
|
void draw(int x, int y, docstring const & str);
|
|
/// Determines the background color for the specified inset based on the
|
|
/// selection state, the background color inherited from the parent inset
|
|
/// and the inset's own background color.
|
|
/// \param sel whether to take the selection state into account
|
|
ColorCode backgroundColor(Inset const * inset, 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)
|
|
bool ltr_pos;
|
|
/// The change the parent is part of (change tracking)
|
|
Change change_;
|
|
/// Whether the parent is selected as a whole
|
|
bool selected;
|
|
/// 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;
|
|
};
|
|
|
|
class TextMetricsInfo {};
|
|
|
|
} // namespace lyx
|
|
|
|
#endif
|