mirror of
https://git.lyx.org/repos/lyx.git
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1829cdef6a
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@6555 a592a061-630c-0410-9148-cb99ea01b6c8
152 lines
2.4 KiB
C
152 lines
2.4 KiB
C
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#include <config.h>
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#include "metricsinfo.h"
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#include "mathed/math_support.h"
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#include "frontends/Painter.h"
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#include "debug.h"
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MetricsBase::MetricsBase()
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: font(), style(LM_ST_TEXT), fontname("mathnormal"),
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restrictwidth(false), textwidth(0)
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{}
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MetricsInfo::MetricsInfo()
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: fullredraw(false)
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{}
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PainterInfo::PainterInfo(Painter & p)
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: pain(p)
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{}
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void PainterInfo::draw(int x, int y, char c)
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{
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pain.text(x, y, c, base.font);
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}
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Styles smallerScriptStyle(Styles st)
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{
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switch (st) {
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case LM_ST_DISPLAY:
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case LM_ST_TEXT:
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return LM_ST_SCRIPT;
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case LM_ST_SCRIPT:
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case LM_ST_SCRIPTSCRIPT:
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return LM_ST_SCRIPTSCRIPT;
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}
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// shut up compiler
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lyxerr << "should not happen\n";
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return LM_ST_DISPLAY;
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}
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ScriptChanger::ScriptChanger(MetricsBase & mb)
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: StyleChanger(mb, smallerScriptStyle(mb.style))
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{}
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Styles smallerFracStyle(Styles st)
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{
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switch (st) {
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case LM_ST_DISPLAY:
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return LM_ST_TEXT;
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case LM_ST_TEXT:
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return LM_ST_SCRIPT;
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case LM_ST_SCRIPT:
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case LM_ST_SCRIPTSCRIPT:
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return LM_ST_SCRIPTSCRIPT;
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}
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// shut up compiler
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lyxerr << "should not happen\n";
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return LM_ST_DISPLAY;
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}
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FracChanger::FracChanger(MetricsBase & mb)
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: StyleChanger(mb, smallerFracStyle(mb.style))
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{}
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ArrayChanger::ArrayChanger(MetricsBase & mb)
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: StyleChanger(mb, mb.style == LM_ST_DISPLAY ? LM_ST_TEXT : mb.style)
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{}
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ShapeChanger::ShapeChanger(LyXFont & font, LyXFont::FONT_SHAPE shape)
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: Changer<LyXFont, LyXFont::FONT_SHAPE>(font)
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{
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save_ = orig_.shape();
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orig_.setShape(shape);
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}
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ShapeChanger::~ShapeChanger()
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{
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orig_.setShape(save_);
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}
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StyleChanger::StyleChanger(MetricsBase & mb, Styles style)
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: Changer<MetricsBase>(mb)
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{
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static const int diff[4][4] = { { 0, 0, -3, -5 },
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{ 0, 0, -3, -5 },
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{ 3, 3, 0, -2 },
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{ 5, 5, 2, 0 } };
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save_ = mb;
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int t = diff[mb.style][style];
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if (t > 0)
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while (t--)
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mb.font.incSize();
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else
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while (t++)
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mb.font.decSize();
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mb.style = style;
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}
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StyleChanger::~StyleChanger()
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{
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orig_ = save_;
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}
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FontSetChanger::FontSetChanger(MetricsBase & mb, char const * name)
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: Changer<MetricsBase>(mb)
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{
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save_ = mb;
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mb.fontname = name;
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augmentFont(mb.font, name);
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}
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FontSetChanger::~FontSetChanger()
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{
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orig_ = save_;
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}
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WidthChanger::WidthChanger(MetricsBase & mb, int w)
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: Changer<MetricsBase>(mb)
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{
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save_ = mb;
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mb.restrictwidth = true;
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mb.textwidth = w;
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}
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WidthChanger::~WidthChanger()
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{
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orig_ = save_;
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}
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