2 * \file MetricsInfo.cpp
3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
8 * Full author contact details are available in file CREDITS.
13 #include "BufferView.h"
15 #include "MetricsInfo.h"
17 #include "mathed/MathSupport.h"
19 #include "frontends/Painter.h"
21 #include "support/docstring.h"
23 #include <boost/assert.hpp>
30 MetricsBase::MetricsBase()
31 : bv(0), font(), style(LM_ST_TEXT), fontname("mathnormal"),
36 MetricsBase::MetricsBase(BufferView * b, FontInfo const & f, int w)
37 : bv(b), font(f), style(LM_ST_TEXT), fontname("mathnormal"),
42 MetricsInfo::MetricsInfo(BufferView * bv, FontInfo const & font, int textwidth,
43 MacroContext const & mc)
44 : base(bv, font, textwidth), macrocontext(mc)
48 PainterInfo::PainterInfo(BufferView * bv, lyx::frontend::Painter & painter)
49 : pain(painter), ltr_pos(false), erased_(false), full_repaint(true),
50 background_color(Color_background)
56 void PainterInfo::draw(int x, int y, char_type c)
58 pain.text(x, y, c, base.font);
62 void PainterInfo::draw(int x, int y, docstring const & str)
64 pain.text(x, y, str, base.font);
68 Styles smallerScriptStyle(Styles st)
75 case LM_ST_SCRIPTSCRIPT:
76 default: // shut up compiler
77 return LM_ST_SCRIPTSCRIPT;
81 ScriptChanger::ScriptChanger(MetricsBase & mb)
82 : StyleChanger(mb, smallerScriptStyle(mb.style))
87 Styles smallerFracStyle(Styles st)
95 case LM_ST_SCRIPTSCRIPT:
96 default: // shut up compiler
97 return LM_ST_SCRIPTSCRIPT;
102 FracChanger::FracChanger(MetricsBase & mb)
103 : StyleChanger(mb, smallerFracStyle(mb.style))
108 ArrayChanger::ArrayChanger(MetricsBase & mb)
109 : StyleChanger(mb, mb.style == LM_ST_DISPLAY ? LM_ST_TEXT : mb.style)
113 ShapeChanger::ShapeChanger(FontInfo & font, FontShape shape)
114 : Changer<FontInfo, FontShape>(font)
116 save_ = orig_.shape();
117 orig_.setShape(shape);
121 ShapeChanger::~ShapeChanger()
123 orig_.setShape(save_);
128 StyleChanger::StyleChanger(MetricsBase & mb, Styles style)
129 : Changer<MetricsBase>(mb)
131 static const int diff[4][4] =
137 int t = diff[mb.style][style];
148 StyleChanger::~StyleChanger()
155 FontSetChanger::FontSetChanger(MetricsBase & mb, char const * name)
156 : Changer<MetricsBase>(mb)
159 FontSize oldsize = save_.font.size();
162 augmentFont(mb.font, from_ascii(name));
163 mb.font.setSize(oldsize);
167 FontSetChanger::FontSetChanger(MetricsBase & mb, docstring const & name)
168 : Changer<MetricsBase>(mb)
171 FontSize oldsize = save_.font.size();
172 mb.fontname = to_utf8(name);
174 augmentFont(mb.font, name);
175 mb.font.setSize(oldsize);
179 FontSetChanger::~FontSetChanger()
185 WidthChanger::WidthChanger(MetricsBase & mb, int w)
186 : Changer<MetricsBase>(mb)
193 WidthChanger::~WidthChanger()
201 ColorChanger::ColorChanger(FontInfo & font, string const & color)
202 : Changer<FontInfo, string>(font)
204 save_ = lcolor.getFromLyXName(color);
205 font.setColor(lcolor.getFromLyXName(color));
209 ColorChanger::~ColorChanger()
211 orig_.setColor(lcolor.getFromLyXName(save_));