src/mathed/math_metricsinfo.C

   1
   2 #include <config.h>
   3
   4 #include "math_metricsinfo.h"
   5 #include "math_support.h"
   6 #include "frontends/Painter.h"
   7
   8
   9
  10 MathMetricsBase::MathMetricsBase()
  11         : font(), style(LM_ST_TEXT), fontname("mathnormal")
  12 {}
  13
  14
  15
  16
  17 MathMetricsInfo::MathMetricsInfo()
  18         : view(0), inset(0), idx(0), fullredraw(false)
  19 {}
  20
  21
  22
  23
  24 MathPainterInfo::MathPainterInfo(Painter & p)
  25         : pain(p)
  26 {}
  27
  28
  29 void MathPainterInfo::draw(int x, int y, char c)
  30 {
  31         pain.text(x, y, c, base.font);
  32 }
  33
  34
  35
  36
  37 MathScriptChanger::MathScriptChanger(MathMetricsBase & mb)
  38         : MathChanger<MathMetricsBase>(mb)
  39 {
  40         save_ = mb;
  41         switch (mb.style) {
  42                 case LM_ST_DISPLAY:
  43                 case LM_ST_TEXT:
  44                         mb.style = LM_ST_SCRIPT;
  45                         mb.font.decSize();
  46                         mb.font.decSize();
  47                         break;
  48                 case LM_ST_SCRIPT:
  49                         mb.style = LM_ST_SCRIPTSCRIPT;
  50                         mb.font.decSize();
  51                 default:
  52                         break;
  53         }
  54 }
  55
  56 MathScriptChanger::~MathScriptChanger()
  57 {
  58         orig_ = save_;
  59 }
  60
  61
  62
  63
  64 // decrease math size for fractions
  65 MathFracChanger::MathFracChanger(MathMetricsBase & mb)
  66         : MathChanger<MathMetricsBase>(mb)
  67 {
  68         save_ = mb;
  69         switch (mb.style) {
  70                 case LM_ST_DISPLAY:
  71                         mb.style = LM_ST_TEXT;
  72                         break;
  73                 case LM_ST_TEXT:
  74                         mb.style = LM_ST_SCRIPT;
  75                         mb.font.decSize();
  76                         mb.font.decSize();
  77                         break;
  78                 case LM_ST_SCRIPT:
  79                         mb.style = LM_ST_SCRIPTSCRIPT;
  80                         mb.font.decSize();
  81                         break;
  82                 default:
  83                         break;
  84         }
  85 }
  86
  87 MathFracChanger::~MathFracChanger()
  88 {
  89         orig_ = save_;
  90 }
  91
  92
  93
  94
  95 MathShapeChanger::MathShapeChanger(LyXFont & font, LyXFont::FONT_SHAPE shape)
  96         : MathChanger<LyXFont, LyXFont::FONT_SHAPE>(font)
  97 {
  98         save_ = orig_.shape();
  99         orig_.setShape(shape);
 100 }
 101
 102 MathShapeChanger::~MathShapeChanger()
 103 {
 104         orig_.setShape(save_);
 105 }
 106
 107
 108
 109
 110 void changeSize(LyXFont & font, int diff)
 111 {
 112         if (diff < 0) {
 113                 font.decSize();
 114                 changeSize(font, diff + 1);
 115         } else if (diff > 0) {
 116                 font.incSize();
 117                 changeSize(font, diff - 1);
 118         }
 119 }
 120
 121 MathStyleChanger::MathStyleChanger(MathMetricsBase & mb, MathStyles style)
 122         :       MathChanger<MathMetricsBase>(mb)
 123 {
 124         save_ = mb;
 125         changeSize(mb.font, mb.style - style);
 126 }
 127
 128
 129 MathStyleChanger::~MathStyleChanger()
 130 {
 131         orig_ = save_;
 132 }
 133
 134
 135
 136
 137 MathFontSetChanger::MathFontSetChanger(MathMetricsBase & mb, char const * name)
 138         :       MathChanger<MathMetricsBase>(mb)
 139 {
 140         save_ = mb;
 141         mb.fontname = name;
 142         augmentFont(mb.font, name);
 143 }
 144
 145 MathFontSetChanger::~MathFontSetChanger()
 146 {
 147         orig_ = save_;
 148 }
 149