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

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 #ifdef    HAVE_CONFIG_H
   4 #  include "../config.h"
   5 #endif // HAVE_CONFIG_H
   6
   7 #include "widget.hh"
   8
   9 #include <algorithm>
  10
  11 namespace otk {
  12
  13 OtkWidget::OtkWidget(OtkWidget *parent, Direction direction)
  14   : OtkBaseWidget(parent),
  15     _direction(direction), _stretchable_vert(false), _stretchable_horz(false),
  16     _event_dispatcher(parent->getEventDispatcher())
  17 {
  18   assert(parent);
  19   _event_dispatcher->registerHandler(getWindow(), this);
  20 }
  21
  22 OtkWidget::OtkWidget(OtkEventDispatcher *event_dispatcher, Style *style,
  23                      Direction direction, Cursor cursor, int bevel_width)
  24   : OtkBaseWidget(style, cursor, bevel_width),
  25     _direction(direction), _stretchable_vert(false), _stretchable_horz(false),
  26     _event_dispatcher(event_dispatcher)
  27 {
  28   assert(event_dispatcher);
  29   _event_dispatcher->registerHandler(getWindow(), this);
  30 }
  31
  32 OtkWidget::~OtkWidget()
  33 {
  34   _event_dispatcher->clearHandler(_window);
  35 }
  36
  37 void OtkWidget::adjust(void)
  38 {
  39   if (_direction == Horizontal)
  40     adjustHorz();
  41   else
  42     adjustVert();
  43 }
  44
  45 void OtkWidget::adjustHorz(void)
  46 {
  47   if (_children.size() == 0)
  48     return;
  49
  50   OtkWidget *tmp;
  51   OtkBaseWidgetList::iterator it, end = _children.end();
  52
  53   int tallest = 0;
  54   int width = _bevel_width;
  55   OtkBaseWidgetList stretchable;
  56
  57   for (it = _children.begin(); it != end; ++it) {
  58     if (!(tmp = dynamic_cast<OtkWidget*>(*it))) continue;
  59     if (tmp->isStretchableVert())
  60       tmp->setHeight(_rect.height() > _bevel_width * 2 ?
  61                      _rect.height() - _bevel_width * 2 : _bevel_width);
  62     if (tmp->isStretchableHorz())
  63       stretchable.push_back(tmp);
  64     else
  65       width += tmp->_rect.width() + _bevel_width;
  66
  67     if (tmp->_rect.height() > tallest)
  68       tallest = tmp->_rect.height();
  69   }
  70
  71   if (stretchable.size() > 0) {
  72     OtkBaseWidgetList::iterator str_it = stretchable.begin(),
  73       str_end = stretchable.end();
  74
  75     int str_width = _rect.width() - width / stretchable.size();
  76
  77     for (; str_it != str_end; ++str_it)
  78       (*str_it)->setWidth(str_width > _bevel_width ? str_width - _bevel_width
  79                           : _bevel_width);
  80   }
  81
  82   OtkWidget *prev_widget = 0;
  83
  84   for (it = _children.begin(); it != end; ++it) {
  85     if (!(tmp = dynamic_cast<OtkWidget*>(*it))) continue;
  86     int x, y;
  87
  88     if (prev_widget)
  89       x = prev_widget->_rect.x() + prev_widget->_rect.width() + _bevel_width;
  90     else
  91       x = _rect.x() + _bevel_width;
  92     y = (tallest - tmp->_rect.height()) / 2 + _bevel_width;
  93
  94     tmp->move(x, y);
  95
  96     prev_widget = tmp;
  97   }
  98
  99   internalResize(width, tallest + _bevel_width * 2);
 100 }
 101
 102 void OtkWidget::adjustVert(void)
 103 {
 104   if (_children.size() == 0)
 105     return;
 106
 107   OtkWidget *tmp;
 108   OtkBaseWidgetList::iterator it, end = _children.end();
 109
 110   int widest = 0;
 111   int height = _bevel_width;
 112   OtkBaseWidgetList stretchable;
 113
 114   for (it = _children.begin(); it != end; ++it) {
 115     if (!(tmp = dynamic_cast<OtkWidget*>(*it))) continue;
 116     if (tmp->isStretchableHorz())
 117       tmp->setWidth(_rect.width() > _bevel_width * 2 ?
 118                     _rect.width() - _bevel_width * 2 : _bevel_width);
 119     if (tmp->isStretchableVert())
 120       stretchable.push_back(tmp);
 121     else
 122       height += tmp->_rect.height() + _bevel_width;
 123
 124     if (tmp->_rect.width() > widest)
 125       widest = tmp->_rect.width();
 126   }
 127
 128   if (stretchable.size() > 0) {
 129     OtkBaseWidgetList::iterator str_it = stretchable.begin(),
 130       str_end = stretchable.end();
 131
 132     int str_height = _rect.height() - height / stretchable.size();
 133
 134     for (; str_it != str_end; ++str_it)
 135       (*str_it)->setHeight(str_height > _bevel_width ?
 136                            str_height - _bevel_width : _bevel_width);
 137   }
 138
 139   OtkWidget *prev_widget = 0;
 140
 141   for (it = _children.begin(); it != end; ++it) {
 142     if (!(tmp = dynamic_cast<OtkWidget*>(*it))) continue;
 143     int x, y;
 144
 145     if (prev_widget)
 146       y = prev_widget->_rect.y() + prev_widget->_rect.height() + _bevel_width;
 147     else
 148       y = _rect.y() + _bevel_width;
 149     x = (widest - tmp->_rect.width()) / 2 + _bevel_width;
 150
 151     tmp->move(x, y);
 152
 153     prev_widget = tmp;
 154   }
 155
 156   internalResize(widest + _bevel_width * 2, height);
 157 }
 158
 159 void OtkWidget::update(void)
 160 {
 161   if (_dirty)
 162     adjust();
 163
 164   OtkBaseWidget::update();
 165 }
 166
 167 void OtkWidget::internalResize(int w, int h)
 168 {
 169   assert(w > 0 && h > 0);
 170
 171 //  if (! _fixed_width && ! _fixed_height)
 172     resize(w, h);
 173 //  else if (! _fixed_width)
 174 //    resize(w, _rect.height());
 175 //  else if (! _fixed_height)
 176 //    resize(_rect.width(), h);
 177 }
 178
 179 void OtkWidget::setEventDispatcher(OtkEventDispatcher *disp)
 180 {
 181   if (_event_dispatcher)
 182     _event_dispatcher->clearHandler(_window);
 183   _event_dispatcher = disp;
 184   _event_dispatcher->registerHandler(_window, this);
 185 }
 186
 187
 188 }