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

   1 #include "widget.hh"
   2 #include "display.hh"
   3 #include "assassin.hh"
   4 #include "screeninfo.hh"
   5
   6 #include <algorithm>
   7 #include <iostream>
   8
   9 namespace otk {
  10
  11 OtkWidget::OtkWidget(OtkWidget *parent, Direction direction)
  12   : _parent(parent), _style(parent->getStyle()), _direction(direction),
  13     _cursor(parent->getCursor()), _bevel_width(parent->getBevelWidth()),
  14     _ignore_config(0),
  15     _visible(false), _focused(false), _grabbed_mouse(false),
  16     _grabbed_keyboard(false), _stretchable_vert(false),
  17     _stretchable_horz(false), _texture(0), _bg_pixmap(0), _bg_pixel(0),
  18     _screen(parent->getScreen()), _fixed_width(false), _fixed_height(false),
  19     _dirty(false)
  20 {
  21   parent->addChild(this);
  22   create();
  23 }
  24
  25 OtkWidget::OtkWidget(Style *style, Direction direction,
  26                      Cursor cursor, int bevel_width)
  27   : _parent(0), _style(style), _direction(direction), _cursor(cursor),
  28     _bevel_width(bevel_width), _ignore_config(0), _visible(false),
  29     _focused(false), _grabbed_mouse(false), _grabbed_keyboard(false),
  30     _stretchable_vert(false), _stretchable_horz(false), _texture(0),
  31     _bg_pixmap(0), _bg_pixel(0), _screen(style->getScreen()),
  32     _fixed_width(false), _fixed_height(false), _dirty(false)
  33 {
  34   assert(style);
  35   create();
  36 }
  37
  38 OtkWidget::~OtkWidget()
  39 {
  40   if (_visible)
  41     hide();
  42
  43   std::for_each(_children.begin(), _children.end(), PointerAssassin());
  44
  45   if (_parent)
  46     _parent->removeChild(this);
  47
  48   XDestroyWindow(otk::OBDisplay::display, _window);
  49 }
  50
  51 void OtkWidget::create(void)
  52 {
  53   const ScreenInfo *scr_info = otk::OBDisplay::screenInfo(_screen);
  54   Window p_window = _parent ? _parent->getWindow() : scr_info->getRootWindow();
  55
  56   _rect.setRect(0, 0, 1, 1); // just some initial values
  57
  58   XSetWindowAttributes attrib_create;
  59   unsigned long create_mask = CWBackPixmap | CWBorderPixel | CWEventMask;
  60
  61   attrib_create.background_pixmap = None;
  62   attrib_create.colormap = scr_info->getColormap();
  63   attrib_create.event_mask = ButtonPressMask | ButtonReleaseMask |
  64     ButtonMotionMask | ExposureMask | StructureNotifyMask;
  65
  66   if (_cursor) {
  67     create_mask |= CWCursor;
  68     attrib_create.cursor = _cursor;
  69   }
  70
  71   _window = XCreateWindow(otk::OBDisplay::display, p_window, _rect.x(),
  72                           _rect.y(), _rect.width(), _rect.height(), 0,
  73                           scr_info->getDepth(), InputOutput,
  74                           scr_info->getVisual(), create_mask, &attrib_create);
  75 }
  76
  77 void OtkWidget::setWidth(int w)
  78 {
  79   assert(w > 0);
  80   _fixed_width = true;
  81   setGeometry(_rect.x(), _rect.y(), w, _rect.height());
  82 }
  83
  84 void OtkWidget::setHeight(int h)
  85 {
  86   assert(h > 0);
  87   _fixed_height = true;
  88   setGeometry(_rect.x(), _rect.y(), _rect.width(), h);
  89 }
  90
  91 void OtkWidget::move(const Point &to)
  92 {
  93   move(to.x(), to.y());
  94 }
  95
  96 void OtkWidget::move(int x, int y)
  97 {
  98   _rect.setPos(x, y);
  99   XMoveWindow(otk::OBDisplay::display, _window, x, y);
 100 }
 101
 102 void OtkWidget::resize(const Point &to)
 103 {
 104   resize(to.x(), to.y());
 105 }
 106
 107 void OtkWidget::resize(int w, int h)
 108 {
 109   assert(w > 0 && h > 0);
 110   _fixed_width = _fixed_height = true;
 111   setGeometry(_rect.x(), _rect.y(), w, h);
 112 }
 113
 114 void OtkWidget::setGeometry(const Rect &new_geom)
 115 {
 116   setGeometry(new_geom.x(), new_geom.y(), new_geom.width(), new_geom.height());
 117 }
 118
 119 void OtkWidget::setGeometry(const Point &topleft, int width, int height)
 120 {
 121   setGeometry(topleft.x(), topleft.y(), width, height);
 122 }
 123
 124 void OtkWidget::setGeometry(int x, int y, int width, int height)
 125 {
 126   _rect = Rect(x, y, width, height);
 127   _dirty = true;
 128   _ignore_config++;
 129
 130   XMoveResizeWindow(otk::OBDisplay::display, _window, x, y, width, height);
 131 }
 132
 133 void OtkWidget::show(void)
 134 {
 135   if (_visible)
 136     return;
 137
 138   // make sure the internal state isn't mangled
 139   if (_dirty)
 140     update();
 141
 142   OtkWidgetList::iterator it = _children.begin(), end = _children.end();
 143   for (; it != end; ++it)
 144     (*it)->show();
 145
 146   XMapWindow(otk::OBDisplay::display, _window);
 147   _visible = true;
 148 }
 149
 150 void OtkWidget::hide(void)
 151 {
 152   if (! _visible)
 153     return;
 154
 155   OtkWidgetList::iterator it = _children.begin(), end = _children.end();
 156   for (; it != end; ++it)
 157     (*it)->hide();
 158
 159   XUnmapWindow(otk::OBDisplay::display, _window);
 160   _visible = false;
 161 }
 162
 163 void OtkWidget::focus(void)
 164 {
 165   if (! _visible)
 166     return;
 167
 168   XSetInputFocus(otk::OBDisplay::display, _window, RevertToPointerRoot,
 169                  CurrentTime);
 170 }
 171
 172 bool OtkWidget::grabMouse(void)
 173 {
 174   Status ret = XGrabPointer(otk::OBDisplay::display, _window, True,
 175                             (ButtonPressMask | ButtonReleaseMask |
 176                              ButtonMotionMask | EnterWindowMask |
 177                              LeaveWindowMask | PointerMotionMask),
 178                             GrabModeSync, GrabModeAsync, None, None,
 179                             CurrentTime);
 180   _grabbed_mouse = (ret == GrabSuccess);
 181   return _grabbed_mouse;
 182 }
 183
 184 void OtkWidget::ungrabMouse(void)
 185 {
 186   if (! _grabbed_mouse)
 187     return;
 188
 189   XUngrabPointer(otk::OBDisplay::display, CurrentTime);
 190   _grabbed_mouse = false;
 191 }
 192
 193 bool OtkWidget::grabKeyboard(void)
 194 {
 195   Status ret = XGrabKeyboard(otk::OBDisplay::display, _window, True,
 196                              GrabModeSync, GrabModeAsync, CurrentTime);
 197   _grabbed_keyboard = (ret == GrabSuccess);
 198   return _grabbed_keyboard;
 199
 200 }
 201
 202 void OtkWidget::ungrabKeyboard(void)
 203 {
 204   if (! _grabbed_keyboard)
 205     return;
 206
 207   XUngrabKeyboard(otk::OBDisplay::display, CurrentTime);
 208   _grabbed_keyboard = false;
 209 }
 210
 211 void OtkWidget::render(void)
 212 {
 213   _bg_pixmap = _texture->render(_rect.width(), _rect.height(), _bg_pixmap);
 214
 215   if (_bg_pixmap)
 216     XSetWindowBackgroundPixmap(otk::OBDisplay::display, _window, _bg_pixmap);
 217   else {
 218     unsigned int pix = _texture->color().pixel();
 219     if (pix != _bg_pixel) {
 220       _bg_pixel = pix;
 221       XSetWindowBackground(otk::OBDisplay::display, _window, pix);
 222     }
 223   }
 224 }
 225
 226 void OtkWidget::adjust(void)
 227 {
 228   if (_direction == Horizontal)
 229     adjustHorz();
 230   else
 231     adjustVert();
 232 }
 233
 234 void OtkWidget::adjustHorz(void)
 235 {
 236   if (_children.size() == 0)
 237     return;
 238
 239   OtkWidget *tmp;
 240   OtkWidgetList::iterator it, end = _children.end();
 241
 242   int tallest = 0;
 243   int width = _bevel_width;
 244   OtkWidgetList stretchable;
 245
 246   for (it = _children.begin(); it != end; ++it) {
 247     tmp = *it;
 248     if (tmp->isStretchableHorz() && _fixed_width)
 249       stretchable.push_back(tmp);
 250     else
 251       width += tmp->_rect.width() + _bevel_width;
 252
 253     if (tmp->_rect.height() > tallest)
 254       tallest = tmp->_rect.height();
 255   }
 256
 257   if (stretchable.size() > 0) {
 258     OtkWidgetList::iterator str_it = stretchable.begin(),
 259       str_end = stretchable.end();
 260
 261     int str_width = _rect.width() - width / stretchable.size();
 262
 263     for (; str_it != str_end; ++str_it) {
 264       (*str_it)->setWidth(str_width - _bevel_width);
 265       //(*str_it)->update();
 266     }
 267   }
 268
 269   OtkWidget *prev_widget = 0;
 270
 271   for (it = _children.begin(); it != end; ++it) {
 272     tmp = *it;
 273     int x, y;
 274
 275     if (prev_widget)
 276       x = prev_widget->_rect.x() + prev_widget->_rect.width() + _bevel_width;
 277     else
 278       x = _rect.x() + _bevel_width;
 279     y = (tallest - tmp->_rect.height()) / 2 + _bevel_width;
 280
 281     tmp->move(x, y);
 282
 283     prev_widget = tmp;
 284   }
 285
 286   internalResize(width, tallest + _bevel_width * 2);
 287 }
 288
 289 void OtkWidget::adjustVert(void)
 290 {
 291   if (_children.size() == 0)
 292     return;
 293
 294   OtkWidget *tmp;
 295   OtkWidgetList::iterator it, end = _children.end();
 296
 297   int widest = 0;
 298   int height = _bevel_width;
 299   OtkWidgetList stretchable;
 300
 301   for (it = _children.begin(); it != end; ++it) {
 302     tmp = *it;
 303     if (tmp->isStretchableVert() && _fixed_height)
 304       stretchable.push_back(tmp);
 305     else
 306       height += tmp->_rect.height() + _bevel_width;
 307
 308     if (tmp->_rect.width() > widest)
 309       widest = tmp->_rect.width();
 310   }
 311
 312   if (stretchable.size() > 0) {
 313     OtkWidgetList::iterator str_it = stretchable.begin(),
 314       str_end = stretchable.end();
 315
 316     int str_height = _rect.height() - height / stretchable.size();
 317
 318     for (; str_it != str_end; ++str_it) {
 319       (*str_it)->setHeight(str_height - _bevel_width);
 320       //(*str_it)->update();
 321     }
 322   }
 323
 324   OtkWidget *prev_widget = 0;
 325
 326   for (it = _children.begin(); it != end; ++it) {
 327     tmp = *it;
 328     int x, y;
 329
 330     if (prev_widget)
 331       y = prev_widget->_rect.y() + prev_widget->_rect.height() + _bevel_width;
 332     else
 333       y = _rect.y() + _bevel_width;
 334     x = (widest - tmp->_rect.width()) / 2 + _bevel_width;
 335
 336     tmp->move(x, y);
 337
 338     prev_widget = tmp;
 339   }
 340
 341   internalResize(widest + _bevel_width * 2, height);
 342 }
 343
 344 void OtkWidget::update(void)
 345 {
 346   OtkWidgetList::iterator it = _children.begin(), end = _children.end();
 347   for (; it != end; ++it)
 348     (*it)->update();
 349
 350   if (_dirty) {
 351     adjust();
 352     render();
 353     XClearWindow(OBDisplay::display, _window);
 354   }
 355
 356   _dirty = false;
 357 }
 358
 359 void OtkWidget::internalResize(int w, int h)
 360 {
 361   assert(w > 0 && h > 0);
 362
 363   if (! _fixed_width && ! _fixed_height)
 364     resize(w, h);
 365   else if (! _fixed_width)
 366     resize(w, _rect.height());
 367   else if (! _fixed_height)
 368     resize(_rect.width(), h);
 369 }
 370
 371 void OtkWidget::addChild(OtkWidget *child, bool front)
 372 {
 373   assert(child);
 374   if (front)
 375     _children.push_front(child);
 376   else
 377     _children.push_back(child);
 378 }
 379
 380 void OtkWidget::removeChild(OtkWidget *child)
 381 {
 382   assert(child);
 383   OtkWidgetList::iterator it, end = _children.end();
 384   for (it = _children.begin(); it != end; ++it) {
 385     if ((*it) == child)
 386       break;
 387   }
 388
 389   if (it != _children.end())
 390     _children.erase(it);
 391 }
 392
 393 bool OtkWidget::expose(const XExposeEvent &e)
 394 {
 395   if (e.window == _window) {
 396     _dirty = true;
 397     update();
 398     return true;
 399   } else {
 400     OtkWidgetList::iterator it = _children.begin(), end = _children.end();
 401     for (; it != end; ++it)
 402       if ((*it)->expose(e))
 403         return true;
 404   }
 405   return false;
 406 }
 407
 408 bool OtkWidget::configure(const XConfigureEvent &e)
 409 {
 410   if (e.window == _window) {
 411     if (_ignore_config) {
 412       _ignore_config--;
 413     } else {
 414       _dirty = true;
 415       _rect.setRect(e.x, e.y, e.width, e.height);
 416       update();
 417     }
 418     return true;
 419   } else {
 420     OtkWidgetList::iterator it = _children.begin(), end = _children.end();
 421     for (; it != end; ++it)
 422       if ((*it)->configure(e))
 423         return true;
 424   }
 425   return false;
 426 }
 427
 428 }