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           restrictwidth(false), textwidth(0)
  13 {}
  14
  15
  16
  17
  18 MathMetricsInfo::MathMetricsInfo()
  19         : view(0), fullredraw(false)
  20 {}
  21
  22
  23
  24
  25 MathPainterInfo::MathPainterInfo(Painter & p)
  26         : pain(p)
  27 {}
  28
  29
  30 void MathPainterInfo::draw(int x, int y, char c)
  31 {
  32         pain.text(x, y, c, base.font);
  33 }
  34
  35
  36
  37
  38 MathScriptChanger::MathScriptChanger(MathMetricsBase & mb)
  39         : MathChanger<MathMetricsBase>(mb)
  40 {
  41         save_ = mb;
  42         switch (mb.style) {
  43                 case LM_ST_DISPLAY:
  44                 case LM_ST_TEXT:
  45                         mb.style = LM_ST_SCRIPT;
  46                         mb.font.decSize();
  47                         mb.font.decSize();
  48                         break;
  49                 case LM_ST_SCRIPT:
  50                         mb.style = LM_ST_SCRIPTSCRIPT;
  51                         mb.font.decSize();
  52                 default:
  53                         break;
  54         }
  55 }
  56
  57 MathScriptChanger::~MathScriptChanger()
  58 {
  59         orig_ = save_;
  60 }
  61
  62
  63
  64
  65 // decrease math size for fractions
  66 MathFracChanger::MathFracChanger(MathMetricsBase & mb)
  67         : MathChanger<MathMetricsBase>(mb)
  68 {
  69         save_ = mb;
  70         switch (mb.style) {
  71                 case LM_ST_DISPLAY:
  72                         mb.style = LM_ST_TEXT;
  73                         break;
  74                 case LM_ST_TEXT:
  75                         mb.style = LM_ST_SCRIPT;
  76                         mb.font.decSize();
  77                         mb.font.decSize();
  78                         break;
  79                 case LM_ST_SCRIPT:
  80                         mb.style = LM_ST_SCRIPTSCRIPT;
  81                         mb.font.decSize();
  82                         break;
  83                 default:
  84                         break;
  85         }
  86 }
  87
  88 MathFracChanger::~MathFracChanger()
  89 {
  90         orig_ = save_;
  91 }
  92
  93
  94
  95
  96 MathShapeChanger::MathShapeChanger(LyXFont & font, LyXFont::FONT_SHAPE shape)
  97         : MathChanger<LyXFont, LyXFont::FONT_SHAPE>(font)
  98 {
  99         save_ = orig_.shape();
 100         orig_.setShape(shape);
 101 }
 102
 103 MathShapeChanger::~MathShapeChanger()
 104 {
 105         orig_.setShape(save_);
 106 }
 107
 108
 109
 110
 111 void changeSize(LyXFont & font, int diff)
 112 {
 113         if (diff < 0) {
 114                 font.decSize();
 115                 changeSize(font, diff + 1);
 116         } else if (diff > 0) {
 117                 font.incSize();
 118                 changeSize(font, diff - 1);
 119         }
 120 }
 121
 122 MathStyleChanger::MathStyleChanger(MathMetricsBase & mb, MathStyles style)
 123         :       MathChanger<MathMetricsBase>(mb)
 124 {
 125         save_ = mb;
 126         changeSize(mb.font, mb.style - style);
 127 }
 128
 129
 130 MathStyleChanger::~MathStyleChanger()
 131 {
 132         orig_ = save_;
 133 }
 134
 135
 136
 137
 138 MathFontSetChanger::MathFontSetChanger(MathMetricsBase & mb, char const * name)
 139         :       MathChanger<MathMetricsBase>(mb)
 140 {
 141         save_ = mb;
 142         mb.fontname = name;
 143         augmentFont(mb.font, name);
 144 }
 145
 146 MathFontSetChanger::~MathFontSetChanger()
 147 {
 148         orig_ = save_;
 149 }
 150
 151
 152 MathWidthChanger::MathWidthChanger(MathMetricsBase & mb, int w)
 153         :       MathChanger<MathMetricsBase>(mb)
 154 {
 155         save_ = mb;
 156         mb.restrictwidth = true;
 157         mb.textwidth     = w;
 158 }
 159
 160
 161 MathWidthChanger::~MathWidthChanger()
 162 {
 163         orig_ = save_;
 164 }
 165