lib/gui/elabel.cpp

   1 #include <lib/gui/elabel.h>
   2 #include <lib/gdi/font.h>
   3
   4 eLabel::eLabel(eWidget *parent, int markedPos): eWidget(parent)
   5 {
   6         m_pos = markedPos;
   7         ePtr<eWindowStyle> style;
   8         getStyle(style);
   9
  10         style->getFont(eWindowStyle::fontStatic, m_font);
  11
  12                 /* default to topleft alignment */
  13         m_valign = alignTop;
  14         m_halign = alignLeft;
  15
  16         m_have_foreground_color = 0;
  17 }
  18
  19 int eLabel::event(int event, void *data, void *data2)
  20 {
  21         switch (event)
  22         {
  23         case evtPaint:
  24         {
  25                 ePtr<eWindowStyle> style;
  26
  27                 getStyle(style);
  28
  29                 eWidget::event(event, data, data2);
  30
  31                 gPainter &painter = *(gPainter*)data2;
  32
  33                 if (m_pos != -1)
  34                 {
  35                         style->setStyle(painter, eWindowStyle::styleLabel);
  36                         ePtr<eTextPara> para = new eTextPara(eRect(0, 0, size().width(), size().height()));
  37                         para->setFont(m_font);
  38                         para->renderString(m_text, 0);
  39                         para->realign(eTextPara::dirLeft);
  40                         int glyphs = para->size();
  41
  42                         if ((m_pos < 0) || (m_pos >= glyphs))
  43                                 eWarning("glyph index %d in eLabel out of bounds!", m_pos);
  44                         else
  45                         {
  46                                 para->setGlyphFlag(m_pos, GS_INVERT);
  47                                 eRect bbox;
  48                                 bbox = para->getGlyphBBox(m_pos);
  49                                 bbox = eRect(bbox.left(), 0, bbox.width(), size().height());
  50                                 painter.fill(bbox);
  51                         }
  52
  53                         painter.renderPara(para, ePoint(0, 0));
  54                         return 0;
  55                 }
  56                 else
  57                 {
  58                         painter.setFont(m_font);
  59                         style->setStyle(painter, eWindowStyle::styleLabel);
  60
  61                         if (m_have_foreground_color)
  62                                 painter.setForegroundColor(m_foreground_color);
  63
  64                         int flags = 0;
  65                         if (m_valign == alignTop)
  66                                 flags |= gPainter::RT_VALIGN_TOP;
  67                         else if (m_valign == alignCenter)
  68                                 flags |= gPainter::RT_VALIGN_CENTER;
  69                         else if (m_valign == alignBottom)
  70                                 flags |= gPainter::RT_VALIGN_BOTTOM;
  71
  72                         if (m_halign == alignLeft)
  73                                 flags |= gPainter::RT_HALIGN_LEFT;
  74                         else if (m_halign == alignCenter)
  75                                 flags |= gPainter::RT_HALIGN_CENTER;
  76                         else if (m_halign == alignRight)
  77                                 flags |= gPainter::RT_HALIGN_RIGHT;
  78                         else if (m_halign == alignBlock)
  79                                 flags |= gPainter::RT_HALIGN_BLOCK;
  80
  81                         flags |= gPainter::RT_WRAP;
  82                         painter.renderText(eRect(0, 0, size().width(), size().height()), m_text, flags);
  83
  84                         return 0;
  85                 }
  86         }
  87         case evtChangedFont:
  88         case evtChangedText:
  89         case evtChangedAlignment:
  90         case evtChangedMarkedPos:
  91                 invalidate();
  92                 return 0;
  93         default:
  94                 return eWidget::event(event, data, data2);
  95         }
  96 }
  97
  98 void eLabel::setText(const std::string &string)
  99 {
 100         if (m_text == string)
 101                 return;
 102         m_text = string;
 103         event(evtChangedText);
 104 }
 105
 106 void eLabel::setMarkedPos(int markedPos)
 107 {
 108         m_pos = markedPos;
 109         event(evtChangedMarkedPos);
 110 }
 111
 112 void eLabel::setFont(gFont *font)
 113 {
 114         m_font = font;
 115         event(evtChangedFont);
 116 }
 117
 118 gFont* eLabel::getFont()
 119 {
 120         return m_font;
 121 }
 122
 123 void eLabel::setVAlign(int align)
 124 {
 125         m_valign = align;
 126         event(evtChangedAlignment);
 127 }
 128
 129 void eLabel::setHAlign(int align)
 130 {
 131         m_halign = align;
 132         event(evtChangedAlignment);
 133 }
 134
 135 void eLabel::setForegroundColor(const gRGB &col)
 136 {
 137         if ((!m_have_foreground_color) || !(m_foreground_color == col))
 138         {
 139                 m_foreground_color = col;
 140                 m_have_foreground_color = 1;
 141                 invalidate();
 142         }
 143 }
 144
 145 void eLabel::clearForegroundColor()
 146 {
 147         if (m_have_foreground_color)
 148         {
 149                 m_have_foreground_color = 0;
 150                 invalidate();
 151         }
 152 }
 153
 154 eSize eLabel::calculateSize()
 155 {
 156         ePtr<eTextPara> p = new eTextPara(eRect(0, 0, size().width(), size().height()));
 157
 158         p->setFont(m_font);
 159         p->renderString(m_text, RS_WRAP);
 160
 161         eRect bbox = p->getBoundBox();
 162         return bbox.size();
 163 }