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 }
  17
  18 FocusLabel::~FocusLabel()
  19 {
  20 }
  21
  22
  23 void FocusLabel::setStyle(RenderStyle *style)
  24 {
  25   FocusWidget::setStyle(style);
  26
  27   setTexture(style->labelFocusBackground());
  28   setUnfocusTexture(style->labelUnfocusBackground());
  29 }
  30
  31
  32 void FocusLabel::renderForeground()
  33 {
  34   otk::Widget::renderForeground();
  35
  36   const Font *ft = style()->labelFont();
  37   RenderColor *text_color = (isFocused() ? style()->textFocusColor()
  38                              : style()->textUnfocusColor());
  39   unsigned int sidemargin = style()->bevelWidth() * 2;
  40
  41   ustring t = _text; // the actual text to draw
  42   int x = sidemargin;    // x coord for the text
  43
  44   // find a string that will fit inside the area for text
  45   int max_length = width() - sidemargin * 2;
  46   if (max_length <= 0) {
  47     t = ""; // can't fit anything
  48   } else {
  49     size_t text_len = t.size();
  50     int length;
  51
  52     do {
  53       t.resize(text_len);
  54       length = ft->measureString(t);
  55     } while (length > max_length && text_len-- > 0);
  56
  57     // justify the text
  58     switch (style()->labelTextJustify()) {
  59     case RenderStyle::RightJustify:
  60       x += max_length - length;
  61       break;
  62     case RenderStyle::CenterJustify:
  63       x += (max_length - length) / 2;
  64       break;
  65     case RenderStyle::LeftJustify:
  66       break;
  67     }
  68   }
  69
  70   display->renderControl(_screen)->
  71     drawString(*_surface, *ft, x, 0, *text_color, t);
  72 }
  73
  74 }