Dogcows Code - chaz/openbox/blob - otk/focuslabel.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 "focuslabel.hh"
   8 #include "display.hh"
   9 #include "screeninfo.hh"
  10
  11 namespace otk {
  12
  13 FocusLabel::FocusLabel(Widget *parent)
  14   : FocusWidget(parent), _text("")
  15 {
  16   const ScreenInfo *info = Display::screenInfo(screen());
  17   _xftdraw = XftDrawCreate(Display::display, window(), info->visual(),
  18                            info->colormap());
  19 }
  20
  21 FocusLabel::~FocusLabel()
  22 {
  23   XftDrawDestroy(_xftdraw);
  24 }
  25
  26
  27 void FocusLabel::setStyle(Style *style)
  28 {
  29   FocusWidget::setStyle(style);
  30
  31   setTexture(style->getLabelFocus());
  32   setUnfocusTexture(style->getLabelUnfocus());
  33 }
  34
  35
  36 void FocusLabel::update(void)
  37 {
  38   if (_dirty) {
  39     const Font *ft = style()->getFont();
  40     Color *text_color = (isFocused() ? style()->getTextFocus()
  41                           : style()->getTextUnfocus());
  42     unsigned int sidemargin = style()->getBevelWidth() * 2;
  43
  44     std::string t = _text; // the actual text to draw
  45     int x = sidemargin;    // x coord for the text
  46
  47     // find a string that will fit inside the area for text
  48     int max_length = width() - sidemargin * 2;
  49     if (max_length <= 0) {
  50       t = ""; // can't fit anything
  51     } else {
  52       size_t text_len = t.size();
  53       int length;
  54
  55       do {
  56         t.resize(text_len);
  57         length = ft->measureString(t);
  58       } while (length > max_length && text_len-- > 0);
  59
  60       // justify the text
  61       switch (style()->textJustify()) {
  62       case Style::RightJustify:
  63         x += max_length - length;
  64         break;
  65       case Style::CenterJustify:
  66         x += (max_length - length) / 2;
  67         break;
  68       case Style::LeftJustify:
  69         break;
  70       }
  71     }
  72
  73     FocusWidget::update();
  74
  75     ft->drawString(_xftdraw, x, 0, *text_color, t);
  76   } else
  77     FocusWidget::update();
  78 }
  79
  80 }