src/mathed/math_metricsinfo.C

   1
   2 #include <config.h>
   3
   4 #include "math_metricsinfo.h"
   5 #include "math_support.h"
   6 #include "debug.h"
   7 #include "frontends/Painter.h"
   8
   9
  10
  11 MathMetricsBase::MathMetricsBase()
  12         : font(), style(LM_ST_TEXT), fontname("mathnormal"),
  13           restrictwidth(false), textwidth(0)
  14 {}
  15
  16
  17
  18
  19 MathMetricsInfo::MathMetricsInfo()
  20         : view(0), fullredraw(false)
  21 {}
  22
  23
  24
  25
  26 MathPainterInfo::MathPainterInfo(Painter & p)
  27         : pain(p)
  28 {}
  29
  30
  31 void MathPainterInfo::draw(int x, int y, char c)
  32 {
  33         pain.text(x, y, c, base.font);
  34 }
  35
  36
  37
  38
  39 MathScriptChanger::MathScriptChanger(MathMetricsBase & mb)
  40         : MathChanger<MathMetricsBase>(mb)
  41 {
  42         save_ = mb;
  43         switch (mb.style) {
  44                 case LM_ST_DISPLAY:
  45                 case LM_ST_TEXT:
  46                         mb.style = LM_ST_SCRIPT;
  47                         mb.font.decSize();
  48                         mb.font.decSize();
  49                         break;
  50                 case LM_ST_SCRIPT:
  51                         mb.style = LM_ST_SCRIPTSCRIPT;
  52                         mb.font.decSize();
  53                 default:
  54                         break;
  55         }
  56 }
  57
  58 MathScriptChanger::~MathScriptChanger()
  59 {
  60         orig_ = save_;
  61 }
  62
  63
  64
  65
  66 // decrease math size for fractions
  67 MathFracChanger::MathFracChanger(MathMetricsBase & mb)
  68         : MathChanger<MathMetricsBase>(mb)
  69 {
  70         save_ = mb;
  71         switch (mb.style) {
  72                 case LM_ST_DISPLAY:
  73                         mb.style = LM_ST_TEXT;
  74                         break;
  75                 case LM_ST_TEXT:
  76                         mb.style = LM_ST_SCRIPT;
  77                         mb.font.decSize();
  78                         mb.font.decSize();
  79                         break;
  80                 case LM_ST_SCRIPT:
  81                         mb.style = LM_ST_SCRIPTSCRIPT;
  82                         mb.font.decSize();
  83                         break;
  84                 default:
  85                         break;
  86         }
  87 }
  88
  89 MathFracChanger::~MathFracChanger()
  90 {
  91         orig_ = save_;
  92 }
  93
  94
  95
  96
  97 MathShapeChanger::MathShapeChanger(LyXFont & font, LyXFont::FONT_SHAPE shape)
  98         : MathChanger<LyXFont, LyXFont::FONT_SHAPE>(font)
  99 {
 100         save_ = orig_.shape();
 101         orig_.setShape(shape);
 102 }
 103
 104 MathShapeChanger::~MathShapeChanger()
 105 {
 106         orig_.setShape(save_);
 107 }
 108
 109
 110
 111
 112 void changeSize(LyXFont & font, int diff)
 113 {
 114         if (diff < 0) {
 115                 font.decSize();
 116                 changeSize(font, diff + 1);
 117         } else if (diff > 0) {
 118                 font.incSize();
 119                 changeSize(font, diff - 1);
 120         }
 121 }
 122
 123 MathStyleChanger::MathStyleChanger(MathMetricsBase & mb, MathStyles style)
 124         :       MathChanger<MathMetricsBase>(mb)
 125 {
 126         save_ = mb;
 127         changeSize(mb.font, mb.style - style);
 128 }
 129
 130
 131 MathStyleChanger::~MathStyleChanger()
 132 {
 133         orig_ = save_;
 134 }
 135
 136
 137
 138
 139 MathFontSetChanger::MathFontSetChanger(MathMetricsBase & mb, char const * name)
 140         :       MathChanger<MathMetricsBase>(mb)
 141 {
 142         save_ = mb;
 143         mb.fontname = name;
 144         augmentFont(mb.font, name);
 145 }
 146
 147 MathFontSetChanger::~MathFontSetChanger()
 148 {
 149         orig_ = save_;
 150 }
 151
 152
 153 MathWidthChanger::MathWidthChanger(MathMetricsBase & mb, int w)
 154         :       MathChanger<MathMetricsBase>(mb)
 155 {
 156         save_ = mb;
 157         mb.restrictwidth = true;
 158         mb.textwidth     = w;
 159 }
 160
 161
 162 MathWidthChanger::~MathWidthChanger()
 163 {
 164         orig_ = save_;
 165 }
 166