Dogcows Code - chaz/openbox/blob - otk/label.cc

   1 #include "label.hh"
   2
   3 namespace otk {
   4
   5 OtkLabel::OtkLabel(OtkWidget *parent)
   6   : OtkWidget(parent), _text(""), _dirty(false)
   7 {
   8   setTexture(getStyle()->getLabelUnfocus());
   9 }
  10
  11 OtkLabel::~OtkLabel()
  12 {
  13 }
  14
  15 void OtkLabel::update(void)
  16 {
  17   if (_dirty) {
  18     const BFont &ft = getStyle()->getFont();
  19     unsigned int bevel = getStyle()->getBevelWidth();
  20
  21     std::string t = _text; // the actual text to draw
  22     int x = bevel;         // x coord for the text
  23
  24     // find a string that will fit inside the area for text
  25     int max_length = width() - getBevelWidth() * 2;
  26     if (max_length <= 0) {
  27       t = ""; // can't fit anything
  28     } else {
  29       size_t text_len = t.size();
  30       int length;
  31
  32       do {
  33         t.resize(text_len);
  34         length = ft.measureString(t);
  35       } while (length > max_length && text_len-- > 0);
  36
  37       // justify the text
  38       switch (getStyle()->textJustify()) {
  39       case Style::RightJustify:
  40         x += max_length - length;
  41         break;
  42       case Style::CenterJustify:
  43         x += (max_length - length) / 2;
  44         break;
  45       case Style::LeftJustify:
  46         break;
  47       }
  48     }
  49
  50     OtkWidget::update();
  51
  52     ft.drawString(getWindow(), x, bevel, *getStyle()->getTextUnfocus(), t);
  53   } else
  54     OtkWidget::update();
  55
  56   _dirty = false;
  57 }
  58
  59 int OtkLabel::exposeHandler(const XExposeEvent &e)
  60 {
  61   _dirty = true;
  62   return OtkWidget::exposeHandler(e);
  63 }
  64
  65 int OtkLabel::configureHandler(const XConfigureEvent &e)
  66 {
  67   if (!(e.width == width() && e.height == height()))
  68     _dirty = true;
  69   return OtkWidget::configureHandler(e);
  70 }
  71
  72 }