Mercurial > projects > dwt-win
annotate dwt/graphics/Device.d @ 113:f353be82b6be
More "static if" changes
| author | John Reimer <terminal.node@gmail.com |
|---|---|
| date | Sun, 10 Feb 2008 18:42:25 -0800 |
| parents | 00a333240696 |
| children | 640928daee8c |
| rev | line source |
|---|---|
| 18 | 1 /******************************************************************************* |
| 14 | 2 * Copyright (c) 2000, 2007 IBM Corporation and others. |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 23 | 10 * Port to the D programming language: |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 14 | 12 *******************************************************************************/ |
| 13 module dwt.graphics.Device; | |
| 14 | |
| 19 | 15 /++ //PORTING_TYPE |
| 15 | 16 import dwt.internal.win32.OS; |
| 14 | 17 class Device{ |
| 15 | 18 static Device getDevice(); |
| 19 void new_Object (Object object); | |
| 20 bool tracking; | |
| 21 public bool isDisposed () ; | |
| 22 void dispose_Object (Object object) ; | |
| 23 float computePoints(LOGFONT* logFont, HFONT hFont); | |
| 24 int computePixels(float height) ; | |
| 18 | 25 public HPALETTE hPalette; |
| 26 int [] colorRefCount; | |
| 27 | |
| 14 | 28 } |
| 19 | 29 ++/ |
| 18 | 30 |
| 14 | 31 import dwt.DWT; |
| 32 import dwt.DWTException; | |
| 33 import dwt.internal.gdip.Gdip; | |
| 34 import dwt.internal.win32.OS; | |
| 19 | 35 |
| 36 import dwt.graphics.Drawable; | |
| 37 import dwt.graphics.DeviceData; | |
| 38 import dwt.graphics.Rectangle; | |
| 39 import dwt.graphics.FontData; | |
| 40 import dwt.graphics.Font; | |
| 41 import dwt.graphics.GCData; | |
| 42 import dwt.graphics.Color; | |
| 43 | |
| 44 import dwt.dwthelper.Runnable; | |
| 45 import dwt.dwthelper.System; | |
| 46 import dwt.dwthelper.utils; | |
| 47 import tango.core.Exception; | |
| 14 | 48 |
| 49 /** | |
| 50 * This class is the abstract superclass of all device objects, | |
| 51 * such as the Display device and the Printer device. Devices | |
| 52 * can have a graphics context (GC) created for them, and they | |
| 53 * can be drawn on by sending messages to the associated GC. | |
| 54 */ | |
| 19 | 55 public abstract class Device : Drawable { |
| 56 | |
| 57 private struct CallbackData { | |
| 58 Device device; | |
| 59 bool scalable; | |
| 60 } | |
| 18 | 61 |
| 14 | 62 /* Debugging */ |
| 63 public static bool DEBUG; | |
| 19 | 64 bool debug_; |
| 65 bool tracking; | |
|
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66 Exception [] errors; |
| 14 | 67 Object [] objects; |
| 18 | 68 |
| 14 | 69 /** |
| 18 | 70 * Palette |
| 14 | 71 * (Warning: This field is platform dependent) |
| 72 * <p> | |
| 73 * <b>IMPORTANT:</b> This field is <em>not</em> part of the DWT | |
| 74 * public API. It is marked public only so that it can be shared | |
| 75 * within the packages provided by DWT. It is not available on all | |
| 76 * platforms and should never be accessed from application code. | |
| 77 * </p> | |
| 78 */ | |
| 19 | 79 public HPALETTE hPalette; |
| 14 | 80 int [] colorRefCount; |
| 18 | 81 |
| 14 | 82 /* System Font */ |
| 19 | 83 HFONT systemFont; |
| 14 | 84 |
| 85 /* Font Enumeration */ | |
| 86 int nFonts = 256; | |
| 19 | 87 LOGFONT* [] logFonts; |
| 14 | 88 TEXTMETRIC metrics; |
| 89 int[] pixels; | |
| 90 | |
| 91 /* Scripts */ | |
| 19 | 92 SCRIPT_PROPERTIES*[] scripts; |
| 14 | 93 |
| 94 /* Advanced Graphics */ | |
|
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95 ULONG_PTR gdipToken; |
| 14 | 96 |
| 97 bool disposed; | |
| 18 | 98 |
| 14 | 99 /* |
| 100 * TEMPORARY CODE. When a graphics object is | |
| 101 * created and the device parameter is null, | |
| 102 * the current Display is used. This presents | |
| 103 * a problem because DWT graphics does not | |
| 104 * reference classes in DWT widgets. The correct | |
| 105 * fix is to remove this feature. Unfortunately, | |
| 106 * too many application programs rely on this | |
| 107 * feature. | |
| 108 * | |
| 109 * This code will be removed in the future. | |
| 110 */ | |
| 111 protected static Device CurrentDevice; | |
| 112 protected static Runnable DeviceFinder; | |
| 19 | 113 |
| 14 | 114 |
| 115 /* | |
| 116 * TEMPORARY CODE. | |
| 117 */ | |
| 118 static synchronized Device getDevice () { | |
| 119 if (DeviceFinder !is null) DeviceFinder.run(); | |
| 18 | 120 Device device = CurrentDevice; |
| 14 | 121 CurrentDevice = null; |
| 122 return device; | |
| 123 } | |
| 124 | |
| 125 /** | |
| 126 * Constructs a new instance of this class. | |
| 127 * <p> | |
| 18 | 128 * You must dispose the device when it is no longer required. |
| 14 | 129 * </p> |
| 130 * | |
| 131 * @see #create | |
| 132 * @see #init | |
| 18 | 133 * |
| 14 | 134 * @since 3.1 |
| 135 */ | |
| 19 | 136 public this() { |
| 14 | 137 this(null); |
| 138 } | |
| 139 | |
| 140 /** | |
| 141 * Constructs a new instance of this class. | |
| 142 * <p> | |
| 18 | 143 * You must dispose the device when it is no longer required. |
| 14 | 144 * </p> |
| 145 * | |
| 146 * @param data the DeviceData which describes the receiver | |
| 147 * | |
| 148 * @see #create | |
| 149 * @see #init | |
| 150 * @see DeviceData | |
| 151 */ | |
| 19 | 152 public this(DeviceData data) { |
| 153 synchronized (this.classinfo) { | |
| 154 debug_ = DEBUG; | |
| 155 tracking = DEBUG; | |
| 14 | 156 if (data !is null) { |
| 19 | 157 debug_ = data.debug_; |
| 14 | 158 tracking = data.tracking; |
| 159 } | |
| 160 create (data); | |
| 161 init (); | |
| 162 if (tracking) { | |
|
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Update to tango trunk -r3152. Thanks DavidLeon for the adjustment of TracedException to Exception and creating the patch.
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parents:
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diff
changeset
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163 errors = new Exception [128]; |
| 14 | 164 objects = new Object [128]; |
| 165 } | |
| 18 | 166 |
| 14 | 167 /* Initialize the system font slot */ |
| 168 systemFont = getSystemFont().handle; | |
|
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169 gdipToken = 0; |
| 14 | 170 } |
| 171 } | |
| 172 | |
| 173 /** | |
| 174 * Throws an <code>DWTException</code> if the receiver can not | |
| 175 * be accessed by the caller. This may include both checks on | |
| 176 * the state of the receiver and more generally on the entire | |
| 177 * execution context. This method <em>should</em> be called by | |
| 178 * device implementors to enforce the standard DWT invariants. | |
| 179 * <p> | |
| 180 * Currently, it is an error to invoke any method (other than | |
| 181 * <code>isDisposed()</code> and <code>dispose()</code>) on a | |
| 182 * device that has had its <code>dispose()</code> method called. | |
| 183 * </p><p> | |
| 184 * In future releases of DWT, there may be more or fewer error | |
| 185 * checks and exceptions may be thrown for different reasons. | |
| 186 * <p> | |
| 187 * | |
| 188 * @exception DWTException <ul> | |
| 189 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 190 * </ul> | |
| 191 */ | |
| 192 protected void checkDevice () { | |
| 193 if (disposed) DWT.error(DWT.ERROR_DEVICE_DISPOSED); | |
| 194 } | |
| 195 | |
| 196 void checkGDIP() { | |
|
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197 if (gdipToken) return; |
|
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198 static if (OS.IsWinCE) DWT.error(DWT.ERROR_NOT_IMPLEMENTED); |
| 14 | 199 int oldErrorMode = OS.SetErrorMode (OS.SEM_FAILCRITICALERRORS); |
| 200 try { | |
|
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201 ULONG_PTR token; |
| 19 | 202 GdiplusStartupInput input; |
| 14 | 203 input.GdiplusVersion = 1; |
|
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Gdiplus implemented - test build of dwt.lib successful; updated graphics package as necessary
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204 if (Gdip.GdiplusStartup ( &token, &input, null ) is 0) { |
| 14 | 205 gdipToken = token; |
| 206 } | |
|
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Update to tango trunk -r3152. Thanks DavidLeon for the adjustment of TracedException to Exception and creating the patch.
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parents:
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diff
changeset
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207 } catch (Exception t) { |
| 14 | 208 DWT.error (DWT.ERROR_NO_GRAPHICS_LIBRARY, t, " [GDI+ is required]"); //$NON-NLS-1$ |
| 209 } finally { | |
| 210 OS.SetErrorMode (oldErrorMode); | |
| 211 } | |
| 212 } | |
| 213 | |
| 214 /** | |
| 215 * Creates the device in the operating system. If the device | |
| 216 * does not have a handle, this method may do nothing depending | |
| 217 * on the device. | |
| 218 * <p> | |
| 219 * This method is called before <code>init</code>. | |
| 220 * </p><p> | |
| 221 * Subclasses are supposed to reimplement this method and not | |
| 222 * call the <code>super</code> implementation. | |
| 223 * </p> | |
| 224 * | |
| 225 * @param data the DeviceData which describes the receiver | |
| 226 * | |
| 227 * @see #init | |
| 228 */ | |
| 229 protected void create (DeviceData data) { | |
| 230 } | |
| 231 | |
| 232 int computePixels(float height) { | |
| 19 | 233 auto hDC = internal_new_GC (null); |
| 234 int pixels = -cast(int)(0.5f + (height * OS.GetDeviceCaps(hDC, OS.LOGPIXELSY) / 72f)); | |
| 14 | 235 internal_dispose_GC (hDC, null); |
| 236 return pixels; | |
| 237 } | |
| 238 | |
| 19 | 239 float computePoints(LOGFONT* logFont, HFONT hFont) { |
| 240 auto hDC = internal_new_GC (null); | |
| 14 | 241 int logPixelsY = OS.GetDeviceCaps(hDC, OS.LOGPIXELSY); |
| 18 | 242 int pixels = 0; |
| 14 | 243 if (logFont.lfHeight > 0) { |
| 244 /* | |
| 245 * Feature in Windows. If the lfHeight of the LOGFONT structure | |
| 246 * is positive, the lfHeight measures the height of the entire | |
| 247 * cell, including internal leading, in logical units. Since the | |
| 248 * height of a font in points does not include the internal leading, | |
| 249 * we must subtract the internal leading, which requires a TEXTMETRIC. | |
| 250 */ | |
| 19 | 251 auto oldFont = OS.SelectObject(hDC, hFont); |
| 252 TEXTMETRIC* lptm = new TEXTMETRIC(); | |
| 14 | 253 OS.GetTextMetrics(hDC, lptm); |
| 254 OS.SelectObject(hDC, oldFont); | |
| 255 pixels = logFont.lfHeight - lptm.tmInternalLeading; | |
| 256 } else { | |
| 257 pixels = -logFont.lfHeight; | |
| 258 } | |
| 259 internal_dispose_GC (hDC, null); | |
| 260 return pixels * 72f / logPixelsY; | |
| 261 } | |
| 262 | |
| 263 /** | |
| 264 * Destroys the device in the operating system and releases | |
| 265 * the device's handle. If the device does not have a handle, | |
| 266 * this method may do nothing depending on the device. | |
| 267 * <p> | |
| 268 * This method is called after <code>release</code>. | |
| 269 * </p><p> | |
| 270 * Subclasses are supposed to reimplement this method and not | |
| 271 * call the <code>super</code> implementation. | |
| 272 * </p> | |
| 273 * | |
| 274 * @see #dispose | |
| 275 * @see #release | |
| 276 */ | |
| 277 protected void destroy () { | |
| 278 } | |
| 279 | |
| 280 /** | |
| 281 * Disposes of the operating system resources associated with | |
| 282 * the receiver. After this method has been invoked, the receiver | |
| 283 * will answer <code>true</code> when sent the message | |
| 284 * <code>isDisposed()</code>. | |
| 285 * | |
| 286 * @see #release | |
| 287 * @see #destroy | |
| 288 * @see #checkDevice | |
| 289 */ | |
| 290 public void dispose () { | |
| 291 if (isDisposed()) return; | |
| 292 checkDevice (); | |
| 293 release (); | |
| 294 destroy (); | |
| 295 disposed = true; | |
| 296 if (tracking) { | |
| 297 objects = null; | |
| 298 errors = null; | |
| 299 } | |
| 300 } | |
| 301 | |
| 302 void dispose_Object (Object object) { | |
| 303 for (int i=0; i<objects.length; i++) { | |
| 304 if (objects [i] is object) { | |
| 305 objects [i] = null; | |
| 306 errors [i] = null; | |
| 307 return; | |
| 308 } | |
| 309 } | |
| 310 } | |
| 311 | |
| 19 | 312 static extern(Windows) int EnumFontFamFunc (ENUMLOGFONT* lpelfe, NEWTEXTMETRIC* lpntme, int FontType, int lParam) { |
| 313 auto cbdata = cast(CallbackData*)lParam; | |
| 314 return cbdata.device.EnumFontFamProc( lpelfe, lpntme, FontType, cbdata.scalable ); | |
| 315 } | |
| 316 | |
| 317 int EnumFontFamProc (ENUMLOGFONT* lpelfe, NEWTEXTMETRIC* lpntme, DWORD FontType, bool scalable) { | |
| 14 | 318 bool isScalable = (FontType & OS.RASTER_FONTTYPE) is 0; |
| 319 if (isScalable is scalable) { | |
| 320 /* Add the log font to the list of log fonts */ | |
| 321 if (nFonts is logFonts.length) { | |
| 19 | 322 LOGFONT* [] newLogFonts = new LOGFONT* [logFonts.length + 128]; |
| 323 SimpleType!(LOGFONT*).arraycopy (logFonts, 0, newLogFonts, 0, nFonts); | |
| 14 | 324 logFonts = newLogFonts; |
| 325 int[] newPixels = new int[newLogFonts.length]; | |
| 326 System.arraycopy (pixels, 0, newPixels, 0, nFonts); | |
| 327 pixels = newPixels; | |
| 328 } | |
| 19 | 329 LOGFONT* logFont = logFonts [nFonts]; |
| 330 if (logFont is null) logFont = new LOGFONT (); | |
| 331 *logFont = *cast(LOGFONT*)lpelfe; | |
| 14 | 332 logFonts [nFonts] = logFont; |
| 333 if (logFont.lfHeight > 0) { | |
| 334 /* | |
| 335 * Feature in Windows. If the lfHeight of the LOGFONT structure | |
| 336 * is positive, the lfHeight measures the height of the entire | |
| 337 * cell, including internal leading, in logical units. Since the | |
| 338 * height of a font in points does not include the internal leading, | |
| 339 * we must subtract the internal leading, which requires a TEXTMETRIC, | |
| 340 * which in turn requires font creation. | |
| 341 */ | |
| 19 | 342 metrics = *cast(TEXTMETRIC*)lpntme; |
| 14 | 343 pixels[nFonts] = logFont.lfHeight - metrics.tmInternalLeading; |
| 344 } else { | |
| 345 pixels[nFonts] = -logFont.lfHeight; | |
| 346 } | |
| 347 nFonts++; | |
| 348 } | |
| 349 return 1; | |
| 350 } | |
| 351 | |
| 352 /** | |
| 353 * Returns a rectangle describing the receiver's size and location. | |
| 354 * | |
| 355 * @return the bounding rectangle | |
| 356 * | |
| 357 * @exception DWTException <ul> | |
| 358 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 359 * </ul> | |
| 360 */ | |
| 361 public Rectangle getBounds () { | |
| 362 checkDevice (); | |
| 19 | 363 auto hDC = internal_new_GC (null); |
| 14 | 364 int width = OS.GetDeviceCaps (hDC, OS.HORZRES); |
| 365 int height = OS.GetDeviceCaps (hDC, OS.VERTRES); | |
| 366 internal_dispose_GC (hDC, null); | |
| 367 return new Rectangle (0, 0, width, height); | |
| 368 } | |
| 369 | |
| 370 /** | |
| 371 * Returns a <code>DeviceData</code> based on the receiver. | |
| 372 * Modifications made to this <code>DeviceData</code> will not | |
| 373 * affect the receiver. | |
| 374 * | |
| 375 * @return a <code>DeviceData</code> containing the device's data and attributes | |
| 376 * | |
| 377 * @exception DWTException <ul> | |
| 378 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 379 * </ul> | |
| 380 * | |
| 381 * @see DeviceData | |
| 382 */ | |
| 383 public DeviceData getDeviceData () { | |
| 384 checkDevice(); | |
| 385 DeviceData data = new DeviceData (); | |
| 19 | 386 data.debug_ = debug_; |
| 14 | 387 data.tracking = tracking; |
| 388 int count = 0, length = 0; | |
| 389 if (tracking) length = objects.length; | |
| 390 for (int i=0; i<length; i++) { | |
| 391 if (objects [i] !is null) count++; | |
| 392 } | |
| 393 int index = 0; | |
| 394 data.objects = new Object [count]; | |
|
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Update to tango trunk -r3152. Thanks DavidLeon for the adjustment of TracedException to Exception and creating the patch.
Frank Benoit <benoit@tionex.de>
parents:
53
diff
changeset
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395 data.errors = new Exception [count]; |
| 14 | 396 for (int i=0; i<length; i++) { |
| 397 if (objects [i] !is null) { | |
| 398 data.objects [index] = objects [i]; | |
| 399 data.errors [index] = errors [i]; | |
| 400 index++; | |
| 401 } | |
| 402 } | |
| 403 return data; | |
| 404 } | |
| 405 | |
| 406 /** | |
| 407 * Returns a rectangle which describes the area of the | |
| 408 * receiver which is capable of displaying data. | |
| 18 | 409 * |
| 14 | 410 * @return the client area |
| 411 * | |
| 412 * @exception DWTException <ul> | |
| 413 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 414 * </ul> | |
| 415 * | |
| 416 * @see #getBounds | |
| 417 */ | |
| 418 public Rectangle getClientArea () { | |
| 419 return getBounds (); | |
| 420 } | |
| 421 | |
| 422 /** | |
| 423 * Returns the bit depth of the screen, which is the number of | |
| 424 * bits it takes to represent the number of unique colors that | |
| 18 | 425 * the screen is currently capable of displaying. This number |
| 14 | 426 * will typically be one of 1, 8, 15, 16, 24 or 32. |
| 427 * | |
| 428 * @return the depth of the screen | |
| 429 * | |
| 430 * @exception DWTException <ul> | |
| 431 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 432 * </ul> | |
| 433 */ | |
| 434 public int getDepth () { | |
| 435 checkDevice (); | |
| 19 | 436 auto hDC = internal_new_GC (null); |
| 14 | 437 int bits = OS.GetDeviceCaps (hDC, OS.BITSPIXEL); |
| 438 int planes = OS.GetDeviceCaps (hDC, OS.PLANES); | |
| 439 internal_dispose_GC (hDC, null); | |
| 440 return bits * planes; | |
| 441 } | |
| 442 | |
| 443 /** | |
| 444 * Returns a point whose x coordinate is the horizontal | |
| 445 * dots per inch of the display, and whose y coordinate | |
| 446 * is the vertical dots per inch of the display. | |
| 447 * | |
| 448 * @return the horizontal and vertical DPI | |
| 449 * | |
| 450 * @exception DWTException <ul> | |
| 451 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 452 * </ul> | |
| 453 */ | |
| 454 public Point getDPI () { | |
| 455 checkDevice (); | |
| 19 | 456 auto hDC = internal_new_GC (null); |
| 14 | 457 int dpiX = OS.GetDeviceCaps (hDC, OS.LOGPIXELSX); |
| 458 int dpiY = OS.GetDeviceCaps (hDC, OS.LOGPIXELSY); | |
| 459 internal_dispose_GC (hDC, null); | |
| 460 return new Point (dpiX, dpiY); | |
| 461 } | |
| 462 | |
| 463 /** | |
| 464 * Returns <code>FontData</code> objects which describe | |
| 465 * the fonts that match the given arguments. If the | |
| 466 * <code>faceName</code> is null, all fonts will be returned. | |
| 467 * | |
| 468 * @param faceName the name of the font to look for, or null | |
| 469 * @param scalable if true only scalable fonts are returned, otherwise only non-scalable fonts are returned. | |
| 470 * @return the matching font data | |
| 471 * | |
| 472 * @exception DWTException <ul> | |
| 473 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 474 * </ul> | |
| 475 */ | |
| 19 | 476 public FontData [] getFontList (char[] faceName, bool scalable) { |
| 14 | 477 checkDevice (); |
| 18 | 478 |
| 14 | 479 /* Create the callback */ |
| 19 | 480 CallbackData cbdata; |
| 481 cbdata.device = this; | |
| 18 | 482 |
| 14 | 483 /* Initialize the instance variables */ |
| 19 | 484 metrics = TEXTMETRIC.init; |
| 14 | 485 pixels = new int[nFonts]; |
| 19 | 486 logFonts = new LOGFONT* [nFonts]; |
| 14 | 487 for (int i=0; i<logFonts.length; i++) { |
| 19 | 488 logFonts [i] = new LOGFONT(); |
| 14 | 489 } |
| 490 nFonts = 0; | |
| 491 | |
| 492 /* Enumerate */ | |
| 493 int offset = 0; | |
| 19 | 494 auto hDC = internal_new_GC (null); |
| 18 | 495 if (faceName is null) { |
| 14 | 496 /* The user did not specify a face name, so they want all versions of all available face names */ |
| 19 | 497 cbdata.scalable = scalable; |
| 498 OS.EnumFontFamilies (hDC, null, &EnumFontFamFunc, cast(int)&cbdata ); | |
| 18 | 499 |
| 14 | 500 /** |
| 501 * For bitmapped fonts, EnumFontFamilies only enumerates once for each font, regardless | |
| 502 * of how many styles are available. If the user wants bitmapped fonts, enumerate on | |
| 503 * each face name now. | |
| 504 */ | |
| 505 offset = nFonts; | |
| 506 for (int i=0; i<offset; i++) { | |
| 19 | 507 LOGFONT* lf = logFonts [i]; |
| 14 | 508 /** |
| 509 * Bug in Windows 98. When EnumFontFamiliesEx is called with a specified face name, it | |
| 510 * should enumerate for each available style of that font. Instead, it only enumerates | |
| 511 * once. The fix is to call EnumFontFamilies, which works as expected. | |
| 512 */ | |
| 19 | 513 cbdata.scalable = scalable; |
|
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514 static if (OS.IsUnicode) { |
| 19 | 515 OS.EnumFontFamiliesW (hDC, (cast(LOGFONTW*)lf).lfFaceName.ptr, &EnumFontFamFunc, cast(int)&cbdata); |
| 14 | 516 } else { |
| 19 | 517 OS.EnumFontFamiliesA (hDC, (cast(LOGFONTA*)lf).lfFaceName.ptr, &EnumFontFamFunc, cast(int)&cbdata); |
| 14 | 518 } |
| 519 } | |
| 520 } else { | |
| 521 /* Use the character encoding for the default locale */ | |
| 522 /** | |
| 523 * Bug in Windows 98. When EnumFontFamiliesEx is called with a specified face name, it | |
| 524 * should enumerate for each available style of that font. Instead, it only enumerates | |
| 525 * once. The fix is to call EnumFontFamilies, which works as expected. | |
| 526 */ | |
| 19 | 527 cbdata.scalable = scalable; |
| 528 OS.EnumFontFamilies (hDC, .StrToTCHARz(faceName), &EnumFontFamFunc, cast(int)&cbdata); | |
| 14 | 529 } |
| 530 int logPixelsY = OS.GetDeviceCaps(hDC, OS.LOGPIXELSY); | |
| 531 internal_dispose_GC (hDC, null); | |
| 532 | |
| 533 /* Create the fontData from the logfonts */ | |
| 534 int count = 0; | |
| 535 FontData [] result = new FontData [nFonts - offset]; | |
| 536 for (int i=offset; i<nFonts; i++) { | |
| 537 FontData fd = FontData.win32_new (logFonts [i], pixels [i] * 72f / logPixelsY); | |
| 538 int j; | |
| 539 for (j = 0; j < count; j++) { | |
| 19 | 540 if (fd == result [j]) break; |
| 14 | 541 } |
| 542 if (j is count) result [count++] = fd; | |
| 543 } | |
| 544 if (count !is result.length) { | |
| 545 FontData [] newResult = new FontData [count]; | |
| 546 System.arraycopy (result, 0, newResult, 0, count); | |
| 547 result = newResult; | |
| 548 } | |
| 18 | 549 |
| 14 | 550 /* Clean up */ |
| 551 logFonts = null; | |
| 552 pixels = null; | |
| 19 | 553 metrics = TEXTMETRIC.init; |
| 14 | 554 return result; |
| 555 } | |
| 556 | |
| 19 | 557 char[] getLastError () { |
| 14 | 558 int error = OS.GetLastError(); |
| 559 if (error is 0) return ""; //$NON-NLS-1$ | |
| 19 | 560 return " [GetLastError=0x" ~ .toHex(error) ~ "]"; //$NON-NLS-1$ //$NON-NLS-2$ |
| 14 | 561 } |
| 562 | |
| 19 | 563 char[] getLastErrorText () { |
| 14 | 564 int error = OS.GetLastError(); |
| 565 if (error is 0) return ""; //$NON-NLS-1$ | |
| 19 | 566 TCHAR* buffer = null; |
| 14 | 567 int dwFlags = OS.FORMAT_MESSAGE_ALLOCATE_BUFFER | OS.FORMAT_MESSAGE_FROM_SYSTEM | OS.FORMAT_MESSAGE_IGNORE_INSERTS; |
| 19 | 568 int length = OS.FormatMessage(dwFlags, null, error, OS.LANG_USER_DEFAULT, cast(TCHAR*)&buffer, 0, null); |
| 569 char[] errorNum = ("[GetLastError=") ~ .toHex(error) ~ "] "; | |
| 570 if (length == 0) return errorNum; | |
| 571 char[] buffer1 = .TCHARzToStr(buffer, length); | |
| 572 if ( *buffer != 0) | |
| 573 OS.LocalFree(cast(HLOCAL)buffer); | |
| 574 return errorNum ~ buffer1; | |
| 14 | 575 } |
| 576 | |
| 577 /** | |
| 578 * Returns the matching standard color for the given | |
| 579 * constant, which should be one of the color constants | |
| 580 * specified in class <code>DWT</code>. Any value other | |
| 581 * than one of the DWT color constants which is passed | |
| 582 * in will result in the color black. This color should | |
| 583 * not be freed because it was allocated by the system, | |
| 584 * not the application. | |
| 585 * | |
| 586 * @param id the color constant | |
| 587 * @return the matching color | |
| 588 * | |
| 589 * @exception DWTException <ul> | |
| 590 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 591 * </ul> | |
| 592 * | |
| 593 * @see DWT | |
| 594 */ | |
| 595 public Color getSystemColor (int id) { | |
| 596 checkDevice (); | |
| 597 int pixel = 0x00000000; | |
| 598 switch (id) { | |
| 599 case DWT.COLOR_WHITE: pixel = 0x00FFFFFF; break; | |
| 600 case DWT.COLOR_BLACK: pixel = 0x00000000; break; | |
| 601 case DWT.COLOR_RED: pixel = 0x000000FF; break; | |
| 602 case DWT.COLOR_DARK_RED: pixel = 0x00000080; break; | |
| 603 case DWT.COLOR_GREEN: pixel = 0x0000FF00; break; | |
| 604 case DWT.COLOR_DARK_GREEN: pixel = 0x00008000; break; | |
| 605 case DWT.COLOR_YELLOW: pixel = 0x0000FFFF; break; | |
| 606 case DWT.COLOR_DARK_YELLOW: pixel = 0x00008080; break; | |
| 607 case DWT.COLOR_BLUE: pixel = 0x00FF0000; break; | |
| 608 case DWT.COLOR_DARK_BLUE: pixel = 0x00800000; break; | |
| 609 case DWT.COLOR_MAGENTA: pixel = 0x00FF00FF; break; | |
| 610 case DWT.COLOR_DARK_MAGENTA: pixel = 0x00800080; break; | |
| 611 case DWT.COLOR_CYAN: pixel = 0x00FFFF00; break; | |
| 612 case DWT.COLOR_DARK_CYAN: pixel = 0x00808000; break; | |
| 613 case DWT.COLOR_GRAY: pixel = 0x00C0C0C0; break; | |
| 614 case DWT.COLOR_DARK_GRAY: pixel = 0x00808080; break; | |
| 81 | 615 default: |
| 14 | 616 } |
| 617 return Color.win32_new (this, pixel); | |
| 618 } | |
| 619 | |
| 620 /** | |
| 621 * Returns a reasonable font for applications to use. | |
| 622 * On some platforms, this will match the "default font" | |
| 623 * or "system font" if such can be found. This font | |
| 624 * should not be freed because it was allocated by the | |
| 625 * system, not the application. | |
| 626 * <p> | |
| 627 * Typically, applications which want the default look | |
| 628 * should simply not set the font on the widgets they | |
| 629 * create. Widgets are always created with the correct | |
| 630 * default font for the class of user-interface component | |
| 631 * they represent. | |
| 632 * </p> | |
| 633 * | |
| 634 * @return a font | |
| 635 * | |
| 636 * @exception DWTException <ul> | |
| 637 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 638 * </ul> | |
| 639 */ | |
| 640 public Font getSystemFont () { | |
| 641 checkDevice (); | |
| 19 | 642 auto hFont = OS.GetStockObject (OS.SYSTEM_FONT); |
| 14 | 643 return Font.win32_new (this, hFont); |
| 644 } | |
| 645 | |
| 646 /** | |
| 647 * Returns <code>true</code> if the underlying window system prints out | |
| 648 * warning messages on the console, and <code>setWarnings</code> | |
| 649 * had previously been called with <code>true</code>. | |
| 650 * | |
| 651 * @return <code>true</code>if warnings are being handled, and <code>false</code> otherwise | |
| 652 * | |
| 653 * @exception DWTException <ul> | |
| 654 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 655 * </ul> | |
| 656 */ | |
| 657 public bool getWarnings () { | |
| 658 checkDevice (); | |
| 659 return false; | |
| 660 } | |
| 661 | |
| 662 /** | |
| 663 * Initializes any internal resources needed by the | |
| 664 * device. | |
| 665 * <p> | |
| 666 * This method is called after <code>create</code>. | |
| 667 * </p><p> | |
| 668 * If subclasses reimplement this method, they must | |
| 669 * call the <code>super</code> implementation. | |
| 670 * </p> | |
| 18 | 671 * |
| 14 | 672 * @see #create |
| 673 */ | |
| 674 protected void init () { | |
| 19 | 675 if (debug_) { |
|
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676 static if (!OS.IsWinCE) OS.GdiSetBatchLimit(1); |
| 14 | 677 } |
| 678 | |
| 679 /* Initialize scripts list */ | |
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680 static if (!OS.IsWinCE) { |
| 19 | 681 SCRIPT_PROPERTIES** ppSp; |
| 682 int piNumScripts; | |
| 683 OS.ScriptGetProperties (&ppSp, &piNumScripts); | |
| 684 scripts = ppSp[ 0 .. piNumScripts ].dup; | |
| 14 | 685 } |
| 18 | 686 |
| 14 | 687 /* |
| 688 * If we're not on a device which supports palettes, | |
| 689 * don't create one. | |
| 690 */ | |
| 19 | 691 auto hDC = internal_new_GC (null); |
| 14 | 692 int rc = OS.GetDeviceCaps (hDC, OS.RASTERCAPS); |
| 693 int bits = OS.GetDeviceCaps (hDC, OS.BITSPIXEL); | |
| 694 int planes = OS.GetDeviceCaps (hDC, OS.PLANES); | |
| 18 | 695 |
| 14 | 696 bits *= planes; |
| 697 if ((rc & OS.RC_PALETTE) is 0 || bits !is 8) { | |
| 698 internal_dispose_GC (hDC, null); | |
| 699 return; | |
| 700 } | |
| 18 | 701 |
| 14 | 702 int numReserved = OS.GetDeviceCaps (hDC, OS.NUMRESERVED); |
| 703 int numEntries = OS.GetDeviceCaps (hDC, OS.SIZEPALETTE); | |
| 704 | |
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705 static if (OS.IsWinCE) { |
| 14 | 706 /* |
| 707 * Feature on WinCE. For some reason, certain 8 bit WinCE | |
| 708 * devices return 0 for the number of reserved entries in | |
| 709 * the system palette. Their system palette correctly contains | |
| 710 * the usual 20 system colors. The workaround is to assume | |
| 711 * there are 20 reserved system colors instead of 0. | |
| 712 */ | |
| 713 if (numReserved is 0 && numEntries >= 20) numReserved = 20; | |
| 714 } | |
| 715 | |
| 716 /* Create the palette and reference counter */ | |
| 717 colorRefCount = new int [numEntries]; | |
| 718 | |
| 719 /* 4 bytes header + 4 bytes per entry * numEntries entries */ | |
| 720 byte [] logPalette = new byte [4 + 4 * numEntries]; | |
| 18 | 721 |
| 14 | 722 /* 2 bytes = special header */ |
| 723 logPalette [0] = 0x00; | |
| 724 logPalette [1] = 0x03; | |
| 18 | 725 |
| 14 | 726 /* 2 bytes = number of colors, LSB first */ |
| 727 logPalette [2] = 0; | |
| 728 logPalette [3] = 1; | |
| 729 | |
| 18 | 730 /* |
| 14 | 731 * Create a palette which contains the system entries |
| 732 * as they are located in the system palette. The | |
| 733 * MSDN article 'Memory Device Contexts' describes | |
| 734 * where system entries are located. On an 8 bit | |
| 735 * display with 20 reserved colors, the system colors | |
| 736 * will be the first 10 entries and the last 10 ones. | |
| 737 */ | |
| 738 byte[] lppe = new byte [4 * numEntries]; | |
| 19 | 739 OS.GetSystemPaletteEntries (hDC, 0, numEntries, cast(PALETTEENTRY*)lppe.ptr); |
| 14 | 740 /* Copy all entries from the system palette */ |
| 741 System.arraycopy (lppe, 0, logPalette, 4, 4 * numEntries); | |
| 742 /* Lock the indices corresponding to the system entries */ | |
| 743 for (int i = 0; i < numReserved / 2; i++) { | |
| 744 colorRefCount [i] = 1; | |
| 745 colorRefCount [numEntries - 1 - i] = 1; | |
| 746 } | |
| 747 internal_dispose_GC (hDC, null); | |
| 19 | 748 hPalette = OS.CreatePalette (cast(LOGPALETTE*)logPalette.ptr); |
| 14 | 749 } |
| 18 | 750 /** |
| 14 | 751 * Invokes platform specific functionality to allocate a new GC handle. |
| 752 * <p> | |
| 753 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 754 * API for <code>Device</code>. It is marked public only so that it | |
| 755 * can be shared within the packages provided by DWT. It is not | |
| 756 * available on all platforms, and should never be called from | |
| 757 * application code. | |
| 758 * </p> | |
| 759 * | |
| 18 | 760 * @param data the platform specific GC data |
| 14 | 761 * @return the platform specific GC handle |
| 762 */ | |
| 19 | 763 public abstract HDC internal_new_GC (GCData data); |
| 14 | 764 |
| 18 | 765 /** |
| 14 | 766 * Invokes platform specific functionality to dispose a GC handle. |
| 767 * <p> | |
| 768 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 769 * API for <code>Device</code>. It is marked public only so that it | |
| 770 * can be shared within the packages provided by DWT. It is not | |
| 771 * available on all platforms, and should never be called from | |
| 772 * application code. | |
| 773 * </p> | |
| 774 * | |
| 775 * @param hDC the platform specific GC handle | |
| 18 | 776 * @param data the platform specific GC data |
| 14 | 777 */ |
| 19 | 778 public abstract void internal_dispose_GC (HDC hDC, GCData data); |
| 14 | 779 |
| 780 /** | |
| 781 * Returns <code>true</code> if the device has been disposed, | |
| 782 * and <code>false</code> otherwise. | |
| 783 * <p> | |
| 784 * This method gets the dispose state for the device. | |
| 785 * When a device has been disposed, it is an error to | |
| 786 * invoke any other method using the device. | |
| 787 * | |
| 788 * @return <code>true</code> when the device is disposed and <code>false</code> otherwise | |
| 789 */ | |
| 790 public bool isDisposed () { | |
| 791 return disposed; | |
| 792 } | |
| 793 | |
| 794 /** | |
| 795 * Loads the font specified by a file. The font will be | |
| 796 * present in the list of fonts available to the application. | |
| 797 * | |
| 798 * @param path the font file path | |
| 799 * @return whether the font was successfully loaded | |
| 800 * | |
| 801 * @exception DWTException <ul> | |
| 802 * <li>ERROR_NULL_ARGUMENT - if path is null</li> | |
| 803 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 804 * </ul> | |
| 805 * | |
| 806 * @see Font | |
| 18 | 807 * |
| 14 | 808 * @since 3.3 |
| 809 */ | |
| 19 | 810 public bool loadFont (char[] path) { |
| 14 | 811 checkDevice(); |
| 812 if (path is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); | |
| 813 if (OS.IsWinNT && OS.WIN32_VERSION >= OS.VERSION (4, 10)) { | |
| 19 | 814 //TCHAR lpszFilename = new TCHAR (0, path, true); |
| 815 return OS.AddFontResourceEx ( .StrToTCHARz(path), OS.FR_PRIVATE, null) !is 0; | |
| 14 | 816 } |
| 817 return false; | |
| 818 } | |
| 819 | |
| 820 void new_Object (Object object) { | |
| 821 for (int i=0; i<objects.length; i++) { | |
| 822 if (objects [i] is null) { | |
| 823 objects [i] = object; | |
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824 errors [i] = new Exception ( "" ); |
| 14 | 825 return; |
| 826 } | |
| 827 } | |
| 828 Object [] newObjects = new Object [objects.length + 128]; | |
| 829 System.arraycopy (objects, 0, newObjects, 0, objects.length); | |
| 830 newObjects [objects.length] = object; | |
| 831 objects = newObjects; | |
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832 Exception [] newErrors = new Exception [errors.length + 128]; |
| 14 | 833 System.arraycopy (errors, 0, newErrors, 0, errors.length); |
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834 newErrors [errors.length] = new Exception (""); |
| 14 | 835 errors = newErrors; |
| 836 } | |
| 837 | |
| 838 /** | |
| 839 * Releases any internal resources back to the operating | |
| 840 * system and clears all fields except the device handle. | |
| 841 * <p> | |
| 842 * When a device is destroyed, resources that were acquired | |
| 843 * on behalf of the programmer need to be returned to the | |
| 844 * operating system. For example, if the device allocated a | |
| 845 * font to be used as the system font, this font would be | |
| 846 * freed in <code>release</code>. Also,to assist the garbage | |
| 847 * collector and minimize the amount of memory that is not | |
| 848 * reclaimed when the programmer keeps a reference to a | |
| 849 * disposed device, all fields except the handle are zero'd. | |
| 850 * The handle is needed by <code>destroy</code>. | |
| 851 * </p> | |
| 852 * This method is called before <code>destroy</code>. | |
| 853 * </p><p> | |
| 854 * If subclasses reimplement this method, they must | |
| 855 * call the <code>super</code> implementation. | |
| 856 * </p> | |
| 857 * | |
| 858 * @see #dispose | |
| 859 * @see #destroy | |
| 860 */ | |
| 861 protected void release () { | |
|
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862 if (gdipToken) { |
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863 Gdip.GdiplusShutdown ( gdipToken ); |
| 14 | 864 } |
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865 gdipToken = 0; // TODO: assignment of 0 might not be valid for token |
| 14 | 866 scripts = null; |
| 19 | 867 if (hPalette !is null) OS.DeleteObject (hPalette); |
| 868 hPalette = null; | |
| 14 | 869 colorRefCount = null; |
| 870 logFonts = null; | |
| 871 nFonts = 0; | |
| 872 } | |
| 873 | |
| 874 /** | |
| 875 * If the underlying window system supports printing warning messages | |
| 876 * to the console, setting warnings to <code>false</code> prevents these | |
| 877 * messages from being printed. If the argument is <code>true</code> then | |
| 878 * message printing is not blocked. | |
| 879 * | |
| 880 * @param warnings <code>true</code>if warnings should be printed, and <code>false</code> otherwise | |
| 881 * | |
| 882 * @exception DWTException <ul> | |
| 883 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 884 * </ul> | |
| 885 */ | |
| 886 public void setWarnings (bool warnings) { | |
| 887 checkDevice (); | |
| 888 } | |
| 889 | |
| 890 } | |
| 891 | |
| 892 |