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 OtkFocusLabel::OtkFocusLabel(OtkWidget *parent)
  14   : OtkFocusWidget(parent), _text("")
  15 {
  16   const ScreenInfo *info = OBDisplay::screenInfo(getScreen());
  17   _xftdraw = XftDrawCreate(OBDisplay::display, getWindow(), info->getVisual(),
  18                            info->getColormap());
  19   setStyle(getStyle());
  20 }
  21
  22 OtkFocusLabel::~OtkFocusLabel()
  23 {
  24   XftDrawDestroy(_xftdraw);
  25 }
  26
  27
  28 void OtkFocusLabel::setStyle(Style *style)
  29 {
  30   OtkFocusWidget::setStyle(style);
  31
  32   setTexture(getStyle()->getLabelFocus());
  33   setUnfocusTexture(getStyle()->getLabelUnfocus());
  34 }
  35
  36
  37 void OtkFocusLabel::update(void)
  38 {
  39   if (_dirty) {
  40     const BFont &ft = getStyle()->getFont();
  41     BColor *text_color = (isFocused() ? getStyle()->getTextFocus()
  42                           : getStyle()->getTextUnfocus());
  43     unsigned int sidemargin = getStyle()->getBevelWidth() * 2;
  44
  45     std::string t = _text; // the actual text to draw
  46     int x = sidemargin;    // x coord for the text
  47
  48     // find a string that will fit inside the area for text
  49     int max_length = width() - sidemargin * 2;
  50     if (max_length <= 0) {
  51       t = ""; // can't fit anything
  52     } else {
  53       size_t text_len = t.size();
  54       int length;
  55
  56       do {
  57         t.resize(text_len);
  58         length = ft.measureString(t);
  59       } while (length > max_length && text_len-- > 0);
  60
  61       // justify the text
  62       switch (getStyle()->textJustify()) {
  63       case Style::RightJustify:
  64         x += max_length - length;
  65         break;
  66       case Style::CenterJustify:
  67         x += (max_length - length) / 2;
  68         break;
  69       case Style::LeftJustify:
  70         break;
  71       }
  72     }
  73
  74     OtkFocusWidget::update();
  75
  76     ft.drawString(_xftdraw, x, 0, *text_color, t);
  77   } else
  78     OtkFocusWidget::update();
  79 }
  80
  81 }