Dogcows Code - chaz/openbox/blob - otk/label.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 "label.hh"
   8
   9 namespace otk {
  10
  11 Label::Label(Widget *parent)
  12   : Widget(parent), _text("")
  13 {
  14   setStyle(_style);
  15 }
  16
  17 Label::~Label()
  18 {
  19 }
  20
  21 void Label::setStyle(RenderStyle *style)
  22 {
  23   Widget::setStyle(style);
  24
  25   setTexture(style->labelUnfocusBackground());
  26 }
  27
  28 void Label::fitString(const std::string &str)
  29 {
  30   const Font *ft = style()->labelFont();
  31   fitSize(ft->measureString(str), ft->height());
  32 }
  33
  34 void Label::fitSize(int w, int h)
  35 {
  36   unsigned int sidemargin = _bevel_width * 2;
  37   resize(w + sidemargin * 2, h + _bevel_width * 2);
  38 }
  39
  40 void Label::update()
  41 {
  42   if (_dirty) {
  43     int w = _rect.width(), h = _rect.height();
  44     const Font *ft = style()->labelFont();
  45     unsigned int sidemargin = _bevel_width * 2;
  46     if (!_fixed_width)
  47       w = ft->measureString(_text) + sidemargin * 2;
  48     if (!_fixed_height)
  49       h = ft->height();
  50
  51     // enforce a minimum size
  52     if (w > _rect.width()) {
  53       if (h > _rect.height())
  54         internalResize(w, h);
  55       else
  56         internalResize(w, _rect.height());
  57     } else if (h > _rect.height())
  58       internalResize(_rect.width(), h);
  59   }
  60   Widget::update();
  61 }
  62
  63
  64 void Label::renderForeground(void)
  65 {
  66   Widget::renderForeground();
  67
  68   const Font *ft = style()->labelFont();
  69   unsigned int sidemargin = _bevel_width * 2;
  70
  71   ustring t = _text; // the actual text to draw
  72   int x = sidemargin;    // x coord for the text
  73
  74   // find a string that will fit inside the area for text
  75   int max_length = width() - sidemargin * 2;
  76   if (max_length <= 0) {
  77     t = ""; // can't fit anything
  78   } else {
  79     size_t text_len = t.size();
  80     int length;
  81
  82     do {
  83       t.resize(text_len);
  84       length = ft->measureString(t);
  85     } while (length > max_length && text_len-- > 0);
  86
  87     // justify the text
  88     switch (style()->labelTextJustify()) {
  89     case RenderStyle::RightJustify:
  90       x += max_length - length;
  91       break;
  92     case RenderStyle::CenterJustify:
  93       x += (max_length - length) / 2;
  94       break;
  95     case RenderStyle::LeftJustify:
  96       break;
  97     }
  98   }
  99
 100   display->renderControl(_screen)->
 101     drawString(*_surface, *ft, x, _bevel_width, *style()->textUnfocusColor(), t);
 102 }
 103
 104 }