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