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   setStyle(_style);
  17 }
  18
  19 FocusLabel::~FocusLabel()
  20 {
  21 }
  22
  23
  24 void FocusLabel::setStyle(RenderStyle *style)
  25 {
  26   FocusWidget::setStyle(style);
  27
  28   setTexture(style->labelFocusBackground());
  29   setUnfocusTexture(style->labelUnfocusBackground());
  30 }
  31
  32 void FocusLabel::fitString(const std::string &str)
  33 {
  34   const Font *ft = style()->labelFont();
  35   fitSize(ft->measureString(str), ft->height());
  36 }
  37
  38 void FocusLabel::fitSize(int w, int h)
  39 {
  40   unsigned int sidemargin = _bevel_width * 2;
  41   resize(w + sidemargin * 2, h);
  42 }
  43
  44 void FocusLabel::update()
  45 {
  46   if (_dirty) {
  47     int w = _rect.width(), h = _rect.height();
  48     const Font *ft = style()->labelFont();
  49     unsigned int sidemargin = _bevel_width * 2;
  50     if (!_fixed_width)
  51       w = ft->measureString(_text) + sidemargin * 2;
  52     if (!_fixed_height)
  53       h = ft->height();
  54
  55     // enforce a minimum size
  56     if (w > _rect.width()) {
  57       if (h > _rect.height())
  58         internalResize(w, h);
  59       else
  60         internalResize(w, _rect.height());
  61     } else if (h > _rect.height())
  62       internalResize(_rect.width(), h);
  63   }
  64   FocusWidget::update();
  65 }
  66
  67
  68 void FocusLabel::renderForeground()
  69 {
  70   FocusWidget::renderForeground();
  71
  72   const Font *ft = style()->labelFont();
  73   RenderColor *text_color = (isFocused() ? style()->textFocusColor()
  74                              : style()->textUnfocusColor());
  75   unsigned int sidemargin = _bevel_width * 2;
  76
  77   ustring t = _text; // the actual text to draw
  78   int x = sidemargin;    // x coord for the text
  79
  80   // find a string that will fit inside the area for text
  81   int max_length = width() - sidemargin * 2;
  82   if (max_length <= 0) {
  83     t = ""; // can't fit anything
  84   } else {
  85     size_t text_len = t.size();
  86     int length;
  87
  88     do {
  89       t.resize(text_len);
  90       length = ft->measureString(t);
  91     } while (length > max_length && text_len-- > 0);
  92
  93     // justify the text
  94     switch (style()->labelTextJustify()) {
  95     case RenderStyle::RightJustify:
  96       x += max_length - length;
  97       break;
  98     case RenderStyle::CenterJustify:
  99       x += (max_length - length) / 2;
 100       break;
 101     case RenderStyle::LeftJustify:
 102       break;
 103     }
 104   }
 105
 106   display->renderControl(_screen)->
 107     drawString(*_surface, *ft, x, 0, *text_color, t);
 108 }
 109
 110 }