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

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   3
   4 #ifdef HAVE_CONFIG_H
   5 # include "../config.h"
   6 #endif
   7
   8 #include "otk/screeninfo.hh"
   9 #include "otk/display.hh"
  10 #include "labelwidget.hh"
  11
  12 namespace ob {
  13
  14 LabelWidget::LabelWidget(otk::Widget *parent, WidgetBase::WidgetType type)
  15   : otk::Widget(parent),
  16     WidgetBase(type)
  17 {
  18   const otk::ScreenInfo *info = otk::Display::screenInfo(_screen);
  19   _xftdraw = XftDrawCreate(otk::Display::display, _window, info->visual(),
  20                            info->colormap());
  21 }
  22
  23
  24 LabelWidget::~LabelWidget()
  25 {
  26   XftDrawDestroy(_xftdraw);
  27 }
  28
  29
  30 void LabelWidget::setText(const std::string &text)
  31 {
  32   _text = text;
  33   _dirty = true;
  34 }
  35
  36
  37 void LabelWidget::setTextures()
  38 {
  39   if (_focused) {
  40     setTexture(_style->getLabelFocus());
  41     _text_color = _style->getTextFocus();
  42   } else {
  43     setTexture(_style->getLabelUnfocus());
  44     _text_color = _style->getTextUnfocus();
  45   }
  46 }
  47
  48
  49 void LabelWidget::setStyle(otk::Style *style)
  50 {
  51   otk::Widget::setStyle(style);
  52   setTextures();
  53   _font = style->getFont();
  54   assert(_font);
  55   _sidemargin = style->getBevelWidth() * 2;
  56   _justify = style->textJustify();
  57 }
  58
  59
  60 void LabelWidget::focus()
  61 {
  62   otk::Widget::focus();
  63   setTextures();
  64 }
  65
  66
  67 void LabelWidget::unfocus()
  68 {
  69   otk::Widget::unfocus();
  70   setTextures();
  71 }
  72
  73
  74 void LabelWidget::update()
  75 {
  76   bool draw = _dirty;
  77
  78   otk::Widget::update();
  79
  80   if (draw) {
  81     std::string t = _text;
  82     int x = _sidemargin;    // x coord for the text
  83
  84     // find a string that will fit inside the area for text
  85     int max_length = width() - _sidemargin * 2;
  86     if (max_length <= 0) {
  87       t = ""; // can't fit anything
  88     } else {
  89       size_t text_len = t.size();
  90       int length;
  91
  92       do {
  93         t.resize(text_len);
  94         length = _font->measureString(t);
  95       } while (length > max_length && text_len-- > 0);
  96
  97       // justify the text
  98       switch (_justify) {
  99       case otk::Style::RightJustify:
 100         x += max_length - length;
 101         break;
 102       case otk::Style::CenterJustify:
 103         x += (max_length - length) / 2;
 104         break;
 105       case otk::Style::LeftJustify:
 106         break;
 107       }
 108     }
 109
 110     _font->drawString(_xftdraw, x, 0, *_text_color, t);
 111   }
 112 }
 113
 114
 115 void LabelWidget::adjust()
 116 {
 117   // nothing to adjust. no children.
 118 }
 119
 120 }