4 * This file is part of LyX, the document processor.
5 * Licence details can be found in the file COPYING.
8 * \author Stefan Schimanski
10 * Full author contact details are available in file CREDITS.
17 #include "ColorCode.h"
20 #include "support/strfwd.h"
21 #include "support/types.h"
29 namespace frontend
{ class Painter
; }
34 /// Standard Sizes (mode styles)
48 // This is the part common to MetricsInfo and PainterInfo
55 MetricsBase(BufferView
* bv
, FontInfo
const & font
, int textwidth
);
61 /// current math style (display/text/script/..)
63 /// name of current font - mathed specific
65 /// This is the width available in pixels
71 // This contains a MetricsBase and information that's only relevant during
72 // the first phase of the two-phase draw
79 MetricsInfo(BufferView
* bv
, FontInfo
const & font
, int textwidth
, MacroContext
const & mc
);
83 /// The context to resolve macros
84 MacroContext
const & macrocontext
;
89 // This contains a MetricsBase and information that's only relevant during
90 // the second phase of the two-phase draw
95 PainterInfo(BufferView
* bv
, frontend::Painter
& pain
);
97 void draw(int x
, int y
, char_type c
);
99 void draw(int x
, int y
, docstring
const & str
);
100 /// Determines the background color for the specified inset based on the
101 /// selection state, the background color inherited from the parent inset
102 /// and the inset's own background color.
103 /// \param sel whether to take the selection state into account
104 ColorCode
backgroundColor(Inset
const * inset
, bool sel
= true) const;
109 frontend::Painter
& pain
;
110 /// Whether the text at this point is right-to-left (for InsetNewline)
112 /// The change the parent is part of (change tracking)
114 /// Whether the parent is selected as a whole
118 /// Current background color
119 ColorCode background_color
;
122 class TextMetricsInfo
{};
125 /// Generic base for temporarily changing things.
126 /// The original state gets restored when the Changer is destructed.
127 template <class Struct
, class Temp
= Struct
>
131 Changer(Struct
& orig
) : orig_(orig
) {}
141 // temporarily change some aspect of a font
142 class FontChanger
: public Changer
<FontInfo
> {
145 FontChanger(FontInfo
& orig
, docstring
const & font
);
146 FontChanger(MetricsBase
& mb
, char const * const font
);
152 // temporarily change a full font
153 class FontSetChanger
: public Changer
<MetricsBase
> {
156 FontSetChanger(MetricsBase
& mb
, docstring
const & font
);
157 FontSetChanger(MetricsBase
& mb
, char const * const font
);
163 // temporarily change the style
164 class StyleChanger
: public Changer
<MetricsBase
> {
167 StyleChanger(MetricsBase
& mb
, Styles style
);
173 // temporarily change the style to script style
174 class ScriptChanger
: public StyleChanger
{
177 ScriptChanger(MetricsBase
& mb
);
181 // temporarily change the style suitable for use in fractions
182 class FracChanger
: public StyleChanger
{
185 FracChanger(MetricsBase
& mb
);
189 // temporarily change the style suitable for use in tabulars and arrays
190 class ArrayChanger
: public StyleChanger
{
193 ArrayChanger(MetricsBase
& mb
);
198 // temporarily change the shape of a font
199 class ShapeChanger
: public Changer
<FontInfo
, FontShape
> {
202 ShapeChanger(FontInfo
& font
, FontShape shape
);
208 // temporarily change the available text width
209 class WidthChanger
: public Changer
<MetricsBase
>
213 WidthChanger(MetricsBase
& mb
, int width
);
219 // temporarily change the used color
220 class ColorChanger
: public Changer
<FontInfo
, std::string
> {
223 ColorChanger(FontInfo
& font
, std::string
const & color
);