Mercurial > projects > dynamin
annotate dynamin/gui/window.d @ 54:3738a2d0bac3
Fix comments and add blank lines.
| author | Jordan Miner <jminer7@gmail.com> |
|---|---|
| date | Sat, 08 Aug 2009 15:31:24 -0500 |
| parents | ad551ec36b75 |
| children | c138461bf845 |
| rev | line source |
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| 0 | 1 // Written in the D programming language |
| 2 // www.digitalmars.com/d/ | |
| 3 | |
| 4 /* | |
| 5 * The contents of this file are subject to the Mozilla Public License Version | |
| 6 * 1.1 (the "License"); you may not use this file except in compliance with | |
| 7 * the License. You may obtain a copy of the License at | |
| 8 * http://www.mozilla.org/MPL/ | |
| 9 * | |
| 10 * Software distributed under the License is distributed on an "AS IS" basis, | |
| 11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License | |
| 12 * for the specific language governing rights and limitations under the | |
| 13 * License. | |
| 14 * | |
| 15 * The Original Code is the Dynamin library. | |
| 16 * | |
| 17 * The Initial Developer of the Original Code is Jordan Miner. | |
| 18 * Portions created by the Initial Developer are Copyright (C) 2006-2009 | |
| 19 * the Initial Developer. All Rights Reserved. | |
| 20 * | |
| 21 * Contributor(s): | |
| 22 * Jordan Miner <jminer7@gmail.com> | |
| 23 * | |
| 24 */ | |
| 25 | |
| 26 module dynamin.gui.window; | |
| 27 | |
| 28 import dynamin.c.cairo; | |
| 29 import dynamin.all_core; | |
| 30 import dynamin.all_painting; | |
| 31 import dynamin.all_gui; | |
| 32 import dynamin.gui.control; | |
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33 import dynamin.gui.cursor; |
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34 import dynamin.gui_backend; |
| 0 | 35 import dynamin.gui.container; |
| 36 import dynamin.gui.events; | |
| 37 import tango.io.Stdout; | |
| 38 import tango.core.Exception; | |
| 39 import tango.core.Thread; | |
| 40 | |
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41 /// |
| 0 | 42 static class Application { |
| 43 static: | |
| 44 mixin ApplicationBackend; | |
| 45 package Thread eventThread; | |
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46 /// Starts event processing. Must be called from main(). |
| 0 | 47 void run(Window w = null) { |
| 48 Window.hasProcessedEvents = true; | |
| 49 | |
| 50 auto thread = Thread.getThis(); | |
| 51 assert(eventThread is null || eventThread is thread, | |
| 52 "Application.run called from two different threads"); | |
| 53 eventThread = thread; | |
| 54 | |
| 55 backend_run(w); | |
| 56 } | |
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57 /** |
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58 * Calls the specified delegate on the event thread and returns without |
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59 * waiting for the delegate to finish. Since the delegate is not called |
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60 * immediately, it must not live on the stack. Instead, it could be a |
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61 * method of a class. In D2, delegates generally are on the heap. |
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62 */ |
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63 void invoke(void delegate() dg) { |
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64 backend_invoke(dg); |
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65 } |
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66 /** |
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67 * Calls the specified delegate on the event thread and blocks until |
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68 * the delegate finishes. |
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69 */ |
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70 void invokeNow(void delegate() dg) { |
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71 backend_invokeNow(dg); |
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72 } |
| 0 | 73 } |
| 74 | |
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75 /// |
| 0 | 76 enum DialogResult { |
| 77 /// | |
| 78 OK, | |
| 79 /// | |
| 80 Yes, | |
| 81 /// | |
| 82 No, | |
| 83 /// | |
| 84 Cancel, | |
| 85 /// | |
| 86 Custom | |
| 87 } | |
| 88 | |
| 89 /// | |
| 90 enum Position { | |
| 91 /// Specifies being at the top-left corner. | |
| 92 TopLeft, | |
| 93 /// Specifies being centered between the top-left corner and the top-right corner. | |
| 94 Top, | |
| 95 /// Specifies being at the top-right corner. | |
| 96 TopRight, | |
| 97 /// Specifies being centered between the top-left corner and the bottom-left corner. | |
| 98 Left, | |
| 99 /// Specifies being centered between all corners. | |
| 100 Center, | |
| 101 /// Specifies being centered between the top-right corner and the bottom-right corner. | |
| 102 Right, | |
| 103 /// Specifies being at the bottom-left corner. | |
| 104 BottomLeft, | |
| 105 /// Specifies being centered between the bottom-left corner and the bottom-right corner. | |
| 106 Bottom, | |
| 107 /// Specifies being at the bottom-right corner. | |
| 108 BottomRight | |
| 109 } | |
| 110 | |
| 111 /** | |
| 112 * The different types of borders that a window may have. | |
| 113 * These do not affect whether the window is resizable-- | |
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114 * use Window.resizable for that. |
| 0 | 115 */ |
| 116 enum WindowBorderStyle { | |
| 117 /** Specifies that the window has no border around the content area. */ | |
| 118 None, | |
| 119 /** | |
| 120 * Specifies that the window has a normal border with a title bar, icon, | |
| 121 * and minimize button. | |
| 122 */ | |
| 123 Normal, | |
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124 /** |
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125 * Specifies that the window has a normal border without a minimize button. |
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126 */ |
| 0 | 127 Dialog, |
| 128 /** Specifies that the window has the border of a floating tool box. */ | |
| 129 Tool | |
| 130 } | |
| 131 | |
| 132 alias List!(Control) ControlList; | |
| 133 //Frames and Dialogs are identical except that Dialogs do not have minimize and | |
| 134 //maximize buttons, are not shown on the taskbar, and can be modal. | |
| 135 /** | |
| 136 * A window is a top level control that has no parent. Its location is relative | |
| 137 * to the top-left corner of the screen. | |
| 138 * A window can have no border, the border of a normal window, or the border | |
| 139 * of a tool window. | |
| 140 * | |
| 141 * The appearance of a window with Windows Classic: | |
| 142 * | |
| 143 * $(IMAGE ../web/example_window.png) | |
| 144 */ | |
| 145 class Window : Container { | |
| 146 private static hasProcessedEvents = false; | |
| 147 ~this() { // this should be a static ~this, but I get a circular dep error | |
| 148 if(!hasProcessedEvents) { | |
| 149 Stdout("Warning: a window was created, but Application.run"); | |
| 150 Stdout(" was not called to process events").newline; | |
| 151 } | |
| 152 } | |
| 153 protected: | |
| 154 mixin WindowBackend; | |
| 155 BorderSize _borderSize; | |
| 156 Window _owner; | |
| 157 WindowBorderStyle _borderStyle; | |
| 158 bool _resizable = true; | |
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159 Panel _content; |
| 0 | 160 Control _focusedControl; |
| 161 package Control focusedControl() { return _focusedControl; } | |
| 162 package void focusedControl(Control c) { | |
| 163 _focusedControl = c; | |
| 164 } | |
| 165 override void dispatchPainting(PaintingEventArgs e) { | |
| 166 Theme.current.Window_paint(this, e.graphics); | |
| 167 super.dispatchPainting(e); | |
| 168 } | |
| 169 public: | |
| 170 this() { | |
| 171 _children = new ControlList(); | |
| 172 content = new Panel; | |
| 173 | |
| 174 _visible = false; | |
| 175 _minSize = Size(0, 0); | |
| 176 _maxSize = Size(0, 0); | |
| 177 _borderStyle = WindowBorderStyle.Normal; | |
| 178 recreateHandle(); | |
| 179 } | |
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180 /// ditto |
| 0 | 181 this(string text) { |
| 182 this(); | |
| 183 this.text = text; | |
| 184 } | |
| 185 | |
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186 void content(Panel panel) { |
| 0 | 187 if(panel is null) |
| 188 throw new IllegalArgumentException("content must not be null"); | |
| 189 // TODO: remove handlers | |
| 190 super.remove(panel); | |
| 191 super.add(_content = panel); | |
| 192 _content.resized += &whenContentResized; | |
| 193 _content.minSizeChanged += &whenContentMinSizeChanged; | |
| 194 _content.maxSizeChanged += &whenContentMaxSizeChanged; | |
| 195 | |
| 196 auto best = _content.bestSize; | |
| 197 _content.minSize = best; | |
| 198 _content.maxSize = Size(_content.elasticX ? 0 : best.width, | |
| 199 _content.elasticY ? 0 : best.height); | |
| 200 resizable = _content.maxSize != best; // avoid calling elasticX/Y again | |
| 201 _content.size = best; | |
| 202 | |
| 203 } | |
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204 |
| 0 | 205 bool ignoreResize; |
| 206 void whenContentResized(EventArgs e) { | |
| 207 if(ignoreResize) | |
| 208 return; | |
| 209 ignoreResize = true; | |
| 210 size = _content.size + _borderSize; | |
| 211 ignoreResize = false; | |
| 212 } | |
| 213 void whenContentMinSizeChanged(EventArgs e) { | |
| 214 if(!handleCreated) | |
| 215 return; | |
| 216 backend_contentMinSizeChanged; | |
| 217 } | |
| 218 void whenContentMaxSizeChanged(EventArgs e) { | |
| 219 if(!handleCreated) | |
| 220 return; | |
| 221 backend_contentMaxSizeChanged; | |
| 222 } | |
| 223 override void whenResized(EventArgs e) { | |
| 224 if(ignoreResize) | |
| 225 return; | |
| 226 _content._location = Point(_borderSize.left, _borderSize.top); | |
| 227 ignoreResize = true; | |
| 228 _content.size = _size-_borderSize; | |
| 229 ignoreResize = false; | |
| 230 } | |
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231 Panel content() { |
| 0 | 232 return _content; |
| 233 } | |
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234 |
| 0 | 235 /** |
| 236 * If the handle has not yet been created, calling this will cause it to be. | |
| 237 * Under the Windows backend, returns a HWND. | |
| 238 * Under the X backend, returns a Window. | |
| 239 * Returns: the backend specific native handle. | |
| 240 */ | |
| 241 typeof(_handle) handle() { | |
| 242 if(!handleCreated) | |
| 243 recreateHandle(); | |
| 244 assert(Thread.getThis() is Application.eventThread || | |
| 245 Application.eventThread is null, | |
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246 "Controls must be accessed and changed only on the event thread. Use invokeNow() from other threads."); |
| 0 | 247 return _handle; |
| 248 } | |
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249 |
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250 /// |
| 0 | 251 bool handleCreated() { return backend_handleCreated; } |
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252 |
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253 /// |
| 0 | 254 void recreateHandle() { |
| 255 backend_recreateHandle(); | |
| 256 } | |
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257 |
| 0 | 258 override protected Graphics quickCreateGraphics() { |
| 259 if(!handleCreated) | |
| 260 return null; | |
| 261 return backend_quickCreateGraphics(); | |
| 262 } | |
| 263 override bool onScreen() { | |
| 264 return true; | |
| 265 } | |
| 266 override Point screenLocation() { | |
| 267 return location; | |
| 268 } | |
| 269 override Point contentToScreen(Point pt) { | |
| 270 return pt + location; | |
| 271 } | |
| 272 override Point screenToContent(Point pt) { | |
| 273 return pt - location; | |
| 274 } | |
| 275 override bool topLevel() { return true; } | |
| 276 override Container parent() { return null; } | |
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277 |
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278 // TODO: because you should always be able to click a window from |
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279 // the taskbar, then show it on taskbar if window has an owner, |
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280 // but don't if it does not |
| 0 | 281 void owner(Window w) { |
| 282 _owner = w; | |
| 283 if(!handleCreated) | |
| 284 return; | |
| 285 recreateHandle(); | |
| 286 } | |
| 287 Window owner() { return _owner; } | |
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288 |
| 0 | 289 alias Control.visible visible; |
| 290 void visible(bool b) { | |
| 291 _visible = b; | |
| 292 backend_visible = b; | |
| 293 } | |
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294 |
| 0 | 295 /** |
| 296 * Gets or sets what border this window will have around its contents. | |
| 297 * The default is WindowBorderStyle.Normal. | |
| 298 */ | |
| 299 WindowBorderStyle borderStyle() { return _borderStyle; } | |
| 300 /// ditto | |
| 301 void borderStyle(WindowBorderStyle border) { | |
| 302 if(border > WindowBorderStyle.Tool) | |
| 303 throw new IllegalArgumentException("Window.borderStyle(): invalid border style"); | |
| 304 _borderStyle = border; | |
| 305 backend_borderStyle = border; | |
| 306 } | |
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307 |
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308 override void setCurrentCursor(Cursor cur) { |
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309 if(!handleCreated) |
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310 return; |
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311 backend_setCurrentCursor(cur); |
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312 } |
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313 |
| 0 | 314 alias Control.repaint repaint; |
| 315 void repaint(Rect rect) { | |
| 316 if(!handleCreated) | |
| 317 return; | |
| 318 backend_repaint(rect); | |
| 319 } | |
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320 |
| 0 | 321 /** |
| 322 * An array of rectangles in screen coordinates that the window will be | |
| 323 * snapped to. | |
| 324 */ | |
| 325 Rect[] snapRects = null; | |
| 326 /** | |
| 327 * Convenience method that sets SnapRects to an array | |
| 328 * with just the specified Rect. | |
| 329 */ | |
| 330 void snapRect(Rect rect) { | |
| 331 snapRects = [rect]; | |
| 332 } | |
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333 |
| 0 | 334 /** |
| 335 * The SnapDistance specifies how close a window has to be to a | |
| 336 * snap rectangle for the window to snap to it. The default is 10 pixels. | |
| 337 */ | |
| 338 uint snapDistance = 10; | |
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339 |
| 0 | 340 /** |
| 341 * Gets or sets whether this window can be resized by the user. | |
| 342 * The default is true. | |
| 343 */ | |
| 344 bool resizable() { return _resizable; } | |
| 345 /// ditto | |
| 346 void resizable(bool b) { // TODO: set based upon whether content is elastic? | |
| 347 _resizable = b; | |
| 348 if(!handleCreated) | |
| 349 return; | |
| 350 backend_resizable = b; | |
| 351 } | |
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352 |
| 0 | 353 // TODO: 1.0 MinSize -> contentMinSize MaxSize -> contentMaxSize |
| 354 alias Control.location location; | |
| 355 void location(Point pt) { | |
| 356 super.location(pt); | |
| 357 if(!handleCreated) | |
| 358 return; | |
| 359 backend_location = pt; | |
| 360 } | |
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361 |
| 0 | 362 alias Control.size size; |
| 363 void size(Size size) { | |
| 364 super.size(size); | |
| 365 _content.size = size - _borderSize; | |
| 366 if(!handleCreated) | |
| 367 return; | |
| 368 backend_size = size; | |
| 369 } | |
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370 |
| 0 | 371 alias Control.text text; |
| 372 void text(string str) { | |
| 373 super.text(str); | |
| 374 if(!handleCreated) | |
| 375 return; | |
| 376 backend_text = str; | |
| 377 } | |
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378 |
| 0 | 379 /** |
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380 * Gets the size of the border/frame around this window. |
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381 */ |
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382 BorderSize borderSize() { |
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Fix comments and add blank lines.
Jordan Miner <jminer7@gmail.com>
parents:
44
diff
changeset
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383 return _borderSize; |
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3738a2d0bac3
Fix comments and add blank lines.
Jordan Miner <jminer7@gmail.com>
parents:
44
diff
changeset
|
384 } |
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3738a2d0bac3
Fix comments and add blank lines.
Jordan Miner <jminer7@gmail.com>
parents:
44
diff
changeset
|
385 |
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3738a2d0bac3
Fix comments and add blank lines.
Jordan Miner <jminer7@gmail.com>
parents:
44
diff
changeset
|
386 /** |
| 0 | 387 * Moves this window to the specified position relative to |
| 388 * the specified control. If no control is specified, the | |
| 389 * window is positioned relative to the screen. | |
| 390 */ | |
| 391 void position(Position pos, Control c = null) { | |
| 392 Rect rect; | |
| 393 if(c && c.onScreen) { | |
| 394 rect = c.screenLocation + c.size; | |
| 395 } else { | |
| 396 rect = desktopRect; | |
| 397 } | |
| 398 Point newLoc = Point(); | |
| 399 switch(pos) { | |
| 400 case Position.TopLeft: | |
| 401 case Position.Left: | |
| 402 case Position.BottomLeft: | |
| 403 newLoc.x = rect.x; | |
| 404 break; | |
| 405 case Position.Top: | |
| 406 case Position.Center: | |
| 407 case Position.Bottom: | |
| 408 newLoc.x = rect.x + (rect.width - width)/2; | |
| 409 break; | |
| 410 case Position.TopRight: | |
| 411 case Position.Right: | |
| 412 case Position.BottomRight: | |
| 413 newLoc.x = rect.x + rect.width - width; | |
| 414 break; | |
| 415 } | |
| 416 switch(pos) { | |
| 417 case Position.TopLeft: | |
| 418 case Position.Top: | |
| 419 case Position.TopRight: | |
| 420 newLoc.y = rect.y; | |
| 421 break; | |
| 422 case Position.Left: | |
| 423 case Position.Center: | |
| 424 case Position.Right: | |
| 425 newLoc.y = rect.y + (rect.height - height)/2; | |
| 426 break; | |
| 427 case Position.BottomLeft: | |
| 428 case Position.Bottom: | |
| 429 case Position.BottomRight: | |
| 430 newLoc.y = rect.y + rect.height - height; | |
| 431 break; | |
| 432 } | |
| 433 location = newLoc; | |
| 434 } | |
| 435 } | |
| 436 |