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   _ignore_config++;
  76 }
  77
  78 void OtkWidget::setWidth(int w)
  79 {
  80   assert(w > 0);
  81   _fixed_width = true;
  82   setGeometry(_rect.x(), _rect.y(), w, _rect.height());
  83 }
  84
  85 void OtkWidget::setHeight(int h)
  86 {
  87   assert(h > 0);
  88   _fixed_height = true;
  89   setGeometry(_rect.x(), _rect.y(), _rect.width(), h);
  90 }
  91
  92 void OtkWidget::move(const Point &to)
  93 {
  94   move(to.x(), to.y());
  95 }
  96
  97 void OtkWidget::move(int x, int y)
  98 {
  99   _rect.setPos(x, y);
 100   XMoveWindow(otk::OBDisplay::display, _window, x, y);
 101   _ignore_config++;
 102 }
 103
 104 void OtkWidget::resize(const Point &to)
 105 {
 106   resize(to.x(), to.y());
 107 }
 108
 109 void OtkWidget::resize(int w, int h)
 110 {
 111   assert(w > 0 && h > 0);
 112   _fixed_width = _fixed_height = true;
 113   setGeometry(_rect.x(), _rect.y(), w, h);
 114 }
 115
 116 void OtkWidget::setGeometry(const Rect &new_geom)
 117 {
 118   setGeometry(new_geom.x(), new_geom.y(), new_geom.width(), new_geom.height());
 119 }
 120
 121 void OtkWidget::setGeometry(const Point &topleft, int width, int height)
 122 {
 123   setGeometry(topleft.x(), topleft.y(), width, height);
 124 }
 125
 126 void OtkWidget::setGeometry(int x, int y, int width, int height)
 127 {
 128   _rect = Rect(x, y, width, height);
 129   _dirty = true;
 130
 131   XMoveResizeWindow(otk::OBDisplay::display, _window, x, y, width, height);
 132   _ignore_config++;
 133 }
 134
 135 void OtkWidget::show(void)
 136 {
 137   if (_visible)
 138     return;
 139
 140   // make sure the internal state isn't mangled
 141   if (_dirty)
 142     update();
 143
 144   OtkWidgetList::iterator it = _children.begin(), end = _children.end();
 145   for (; it != end; ++it)
 146     (*it)->show();
 147
 148   XMapWindow(otk::OBDisplay::display, _window);
 149   _visible = true;
 150 }
 151
 152 void OtkWidget::hide(void)
 153 {
 154   if (! _visible)
 155     return;
 156
 157   OtkWidgetList::iterator it = _children.begin(), end = _children.end();
 158   for (; it != end; ++it)
 159     (*it)->hide();
 160
 161   XUnmapWindow(otk::OBDisplay::display, _window);
 162   _visible = false;
 163 }
 164
 165 void OtkWidget::focus(void)
 166 {
 167   if (! _visible)
 168     return;
 169
 170   XSetInputFocus(otk::OBDisplay::display, _window, RevertToPointerRoot,
 171                  CurrentTime);
 172 }
 173
 174 bool OtkWidget::grabMouse(void)
 175 {
 176   Status ret = XGrabPointer(otk::OBDisplay::display, _window, True,
 177                             (ButtonPressMask | ButtonReleaseMask |
 178                              ButtonMotionMask | EnterWindowMask |
 179                              LeaveWindowMask | PointerMotionMask),
 180                             GrabModeSync, GrabModeAsync, None, None,
 181                             CurrentTime);
 182   _grabbed_mouse = (ret == GrabSuccess);
 183   return _grabbed_mouse;
 184 }
 185
 186 void OtkWidget::ungrabMouse(void)
 187 {
 188   if (! _grabbed_mouse)
 189     return;
 190
 191   XUngrabPointer(otk::OBDisplay::display, CurrentTime);
 192   _grabbed_mouse = false;
 193 }
 194
 195 bool OtkWidget::grabKeyboard(void)
 196 {
 197   Status ret = XGrabKeyboard(otk::OBDisplay::display, _window, True,
 198                              GrabModeSync, GrabModeAsync, CurrentTime);
 199   _grabbed_keyboard = (ret == GrabSuccess);
 200   return _grabbed_keyboard;
 201
 202 }
 203
 204 void OtkWidget::ungrabKeyboard(void)
 205 {
 206   if (! _grabbed_keyboard)
 207     return;
 208
 209   XUngrabKeyboard(otk::OBDisplay::display, CurrentTime);
 210   _grabbed_keyboard = false;
 211 }
 212
 213 void OtkWidget::render(void)
 214 {
 215   _bg_pixmap = _texture->render(_rect.width(), _rect.height(), _bg_pixmap);
 216
 217   if (_bg_pixmap)
 218     XSetWindowBackgroundPixmap(otk::OBDisplay::display, _window, _bg_pixmap);
 219   else {
 220     unsigned int pix = _texture->color().pixel();
 221     if (pix != _bg_pixel) {
 222       _bg_pixel = pix;
 223       XSetWindowBackground(otk::OBDisplay::display, _window, pix);
 224     }
 225   }
 226 }
 227
 228 void OtkWidget::adjust(void)
 229 {
 230   if (_direction == Horizontal)
 231     adjustHorz();
 232   else
 233     adjustVert();
 234 }
 235
 236 void OtkWidget::adjustHorz(void)
 237 {
 238   if (_children.size() == 0)
 239     return;
 240
 241   OtkWidget *tmp;
 242   OtkWidgetList::iterator it, end = _children.end();
 243
 244   int tallest = 0;
 245   int width = _bevel_width;
 246   OtkWidgetList stretchable;
 247
 248   for (it = _children.begin(); it != end; ++it) {
 249     tmp = *it;
 250     if (tmp->isStretchableVert())
 251       tmp->setHeight(_rect.height() > _bevel_width * 2 ?
 252                      _rect.height() - _bevel_width * 2 : _bevel_width);
 253     if (tmp->isStretchableHorz())
 254       stretchable.push_back(tmp);
 255     else
 256       width += tmp->_rect.width() + _bevel_width;
 257
 258     if (tmp->_rect.height() > tallest)
 259       tallest = tmp->_rect.height();
 260   }
 261
 262   if (stretchable.size() > 0) {
 263     OtkWidgetList::iterator str_it = stretchable.begin(),
 264       str_end = stretchable.end();
 265
 266     int str_width = _rect.width() - width / stretchable.size();
 267
 268     for (; str_it != str_end; ++str_it)
 269       (*str_it)->setWidth(str_width > _bevel_width ? str_width - _bevel_width
 270                           : _bevel_width);
 271   }
 272
 273   OtkWidget *prev_widget = 0;
 274
 275   for (it = _children.begin(); it != end; ++it) {
 276     tmp = *it;
 277     int x, y;
 278
 279     if (prev_widget)
 280       x = prev_widget->_rect.x() + prev_widget->_rect.width() + _bevel_width;
 281     else
 282       x = _rect.x() + _bevel_width;
 283     y = (tallest - tmp->_rect.height()) / 2 + _bevel_width;
 284
 285     tmp->move(x, y);
 286
 287     prev_widget = tmp;
 288   }
 289
 290   internalResize(width, tallest + _bevel_width * 2);
 291 }
 292
 293 void OtkWidget::adjustVert(void)
 294 {
 295   if (_children.size() == 0)
 296     return;
 297
 298   OtkWidget *tmp;
 299   OtkWidgetList::iterator it, end = _children.end();
 300
 301   int widest = 0;
 302   int height = _bevel_width;
 303   OtkWidgetList stretchable;
 304
 305   for (it = _children.begin(); it != end; ++it) {
 306     tmp = *it;
 307     if (tmp->isStretchableHorz())
 308       tmp->setWidth(_rect.width() > _bevel_width * 2 ?
 309                     _rect.width() - _bevel_width * 2 : _bevel_width);
 310     if (tmp->isStretchableVert())
 311       stretchable.push_back(tmp);
 312     else
 313       height += tmp->_rect.height() + _bevel_width;
 314
 315     if (tmp->_rect.width() > widest)
 316       widest = tmp->_rect.width();
 317   }
 318
 319   if (stretchable.size() > 0) {
 320     OtkWidgetList::iterator str_it = stretchable.begin(),
 321       str_end = stretchable.end();
 322
 323     int str_height = _rect.height() - height / stretchable.size();
 324
 325     for (; str_it != str_end; ++str_it)
 326       (*str_it)->setHeight(str_height > _bevel_width ?
 327                            str_height - _bevel_width : _bevel_width);
 328   }
 329
 330   OtkWidget *prev_widget = 0;
 331
 332   for (it = _children.begin(); it != end; ++it) {
 333     tmp = *it;
 334     int x, y;
 335
 336     if (prev_widget)
 337       y = prev_widget->_rect.y() + prev_widget->_rect.height() + _bevel_width;
 338     else
 339       y = _rect.y() + _bevel_width;
 340     x = (widest - tmp->_rect.width()) / 2 + _bevel_width;
 341
 342     tmp->move(x, y);
 343
 344     prev_widget = tmp;
 345   }
 346
 347   internalResize(widest + _bevel_width * 2, height);
 348 }
 349
 350 void OtkWidget::update(void)
 351 {
 352   if (_dirty) {
 353     adjust();
 354     render();
 355     XClearWindow(OBDisplay::display, _window);
 356   }
 357
 358   OtkWidgetList::iterator it = _children.begin(), end = _children.end();
 359   for (; it != end; ++it)
 360     (*it)->update();
 361
 362   _dirty = false;
 363 }
 364
 365 void OtkWidget::internalResize(int w, int h)
 366 {
 367   assert(w > 0 && h > 0);
 368
 369   if (! _fixed_width && ! _fixed_height)
 370     resize(w, h);
 371   else if (! _fixed_width)
 372     resize(w, _rect.height());
 373   else if (! _fixed_height)
 374     resize(_rect.width(), h);
 375 }
 376
 377 void OtkWidget::addChild(OtkWidget *child, bool front)
 378 {
 379   assert(child);
 380   if (front)
 381     _children.push_front(child);
 382   else
 383     _children.push_back(child);
 384 }
 385
 386 void OtkWidget::removeChild(OtkWidget *child)
 387 {
 388   assert(child);
 389   OtkWidgetList::iterator it, end = _children.end();
 390   for (it = _children.begin(); it != end; ++it) {
 391     if ((*it) == child)
 392       break;
 393   }
 394
 395   if (it != _children.end())
 396     _children.erase(it);
 397 }
 398
 399 bool OtkWidget::expose(const XExposeEvent &e)
 400 {
 401   if (e.window == _window) {
 402     _dirty = true;
 403     update();
 404     return true;
 405   } else {
 406     OtkWidgetList::iterator it = _children.begin(), end = _children.end();
 407     for (; it != end; ++it)
 408       if ((*it)->expose(e))
 409         return true;
 410   }
 411   return false;
 412 }
 413
 414 bool OtkWidget::configure(const XConfigureEvent &e)
 415 {
 416   if (e.window == _window) {
 417     if (_ignore_config) {
 418       _ignore_config--;
 419     } else {
 420       std::cout << "configure\n";
 421       if (!(e.width == _rect.width() && e.height == _rect.height())) {
 422         _dirty = true;
 423         _rect.setSize(e.width, e.height);
 424       }
 425       update();
 426     }
 427     return true;
 428   } else {
 429     OtkWidgetList::iterator it = _children.begin(), end = _children.end();
 430     for (; it != end; ++it)
 431       if ((*it)->configure(e))
 432         return true;
 433   }
 434   return false;
 435 }
 436
 437 }