Dogcows Code - chaz/openbox/blob - src/labelwidget.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 #ifdef HAVE_CONFIG_H
   4 # include "../config.h"
   5 #endif
   6
   7 #include "otk/screeninfo.hh"
   8 #include "otk/display.hh"
   9 #include "labelwidget.hh"
  10
  11 namespace ob {
  12
  13 LabelWidget::LabelWidget(otk::Widget *parent, WidgetBase::WidgetType type)
  14   : otk::Widget(parent),
  15     WidgetBase(type)
  16 {
  17 }
  18
  19
  20 LabelWidget::~LabelWidget()
  21 {
  22 }
  23
  24
  25 void LabelWidget::setText(const otk::ustring &text)
  26 {
  27   _text = text;
  28   _dirty = true;
  29 }
  30
  31
  32 void LabelWidget::setTextures()
  33 {
  34   if (_focused) {
  35     setTexture(_style->labelFocusBackground());
  36     _text_color = _style->textFocusColor();
  37   } else {
  38     setTexture(_style->labelUnfocusBackground());
  39     _text_color = _style->textUnfocusColor();
  40   }
  41 }
  42
  43
  44 void LabelWidget::setStyle(otk::RenderStyle *style)
  45 {
  46   otk::Widget::setStyle(style);
  47   setTextures();
  48   _font = style->labelFont();
  49   _sidemargin = style->bevelWidth() * 2;
  50   _justify = style->labelTextJustify();
  51
  52   assert(_font);
  53 }
  54
  55
  56 void LabelWidget::focus()
  57 {
  58   otk::Widget::focus();
  59   setTextures();
  60 }
  61
  62
  63 void LabelWidget::unfocus()
  64 {
  65   otk::Widget::unfocus();
  66   setTextures();
  67 }
  68
  69
  70 void LabelWidget::renderForeground()
  71 {
  72   bool draw = _dirty;
  73
  74   otk::Widget::renderForeground();
  75
  76   if (draw) {
  77     otk::ustring t = _text;
  78     int x = _sidemargin;    // x coord for the text
  79
  80     // find a string that will fit inside the area for text
  81     int max_length = width() - _sidemargin * 2;
  82     if (max_length <= 0) {
  83       t = ""; // can't fit anything
  84     } else {
  85       size_t text_len = t.size();
  86       int length;
  87
  88       do {
  89         t.resize(text_len);
  90         length = _font->measureString(t);
  91       } while (length > max_length && text_len-- > 0);
  92
  93       // justify the text
  94       switch (_justify) {
  95       case otk::RenderStyle::RightJustify:
  96         x += max_length - length;
  97         break;
  98       case otk::RenderStyle::CenterJustify:
  99         x += (max_length - length) / 2;
 100         break;
 101       case otk::RenderStyle::LeftJustify:
 102         break;
 103       }
 104     }
 105
 106     otk::display->renderControl(_screen)->drawString
 107       (*_surface, *_font, x, 0, *_text_color, t);
 108   }
 109 }
 110
 111
 112 void LabelWidget::adjust()
 113 {
 114   // nothing to adjust. no children.
 115 }
 116
 117 }