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annotate org.eclipse.swt.gtk.linux.x86/src/org/eclipse/swt/graphics/Font.d @ 120:536e43f63c81
Comprehensive update for Win32/Linux32 dmd-2.053/dmd-1.068+Tango-r5661
===D2===
* added [Try]Immutable/Const/Shared templates to work with differenses in D1/D2 instead of version statements
used these templates to work with strict type storage rules of dmd-2.053
* com.ibm.icu now also compilable with D2, but not tested yet
* small fixes
Snippet288 - shared data is in TLS
===Phobos===
* fixed critical bugs in Phobos implemention
completely incorrect segfault prone fromStringz (Linux's port ruthless killer)
terrible, incorrect StringBuffer realization (StyledText killer)
* fixed small bugs as well
Snippet72 - misprint in the snippet
* implemented missed functionality for Phobos
ByteArrayOutputStream implemented (image loading available)
formatting correctly works for all DWT's cases
As a result, folowing snippets now works with Phobos (Snippet### - what is fixed):
Snippet24, 42, 111, 115, 130, 235, 276 - bad string formatting
Snippet48, 282 - crash on image loading
Snippet163, 189, 211, 213, 217, 218, 222 - crash on copy/cut in StyledText
Snippet244 - hang-up
===Tango===
* few changes for the latest Tango trunc-r5661
* few small performance improvments
===General===
* implMissing-s for only one version changed to implMissingInTango/InPhobos
* incorrect calls to Format in toString-s fixed
* fixed loading \uXXXX characters in ResourceBundle
* added good UTF-8 support for StyledText, TextLayout (Win32) and friends
UTF functions revised and tested. It is now in java.nonstandard.*Utf modules
StyledText and TextLayout (Win32) modules revised for UTF-8 support
* removed small diferences in most identical files in *.swt.* folders
*.swt.internal.image, *.swt.events and *.swt.custom are identical in Win32/Linux32
now 179 of 576 (~31%) files in *.swt.* folders are fully identical
* Win32: snippets now have right subsystem, pretty icons and native system style controls
* small fixes in snippets
Snippet44 - it's not Snippet44
Snippet212 - functions work with different images and offsets arrays
Win32: Snippet282 - crash on close if the button has an image
Snippet293 - setGrayed is commented
and others
Win32: As a result, folowing snippets now works
Snippet68 - color doesn't change
Snippet163, 189, 211, 213, 217, 218, 222 - UTF-8 issues (see above)
Snippet193 - no tabel headers
| author | Denis Shelomovskij <verylonglogin.reg@gmail.com> |
|---|---|
| date | Sat, 09 Jul 2011 15:50:20 +0300 |
| parents | 70388b0e6dad |
| children |
| rev | line source |
|---|---|
| 25 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2008 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 | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module org.eclipse.swt.graphics.Font; | |
| 14 | |
| 15 import java.lang.all; | |
| 16 | |
| 17 | |
| 18 import org.eclipse.swt.SWT; | |
| 19 import org.eclipse.swt.graphics.Resource; | |
| 20 import org.eclipse.swt.graphics.FontData; | |
| 21 import org.eclipse.swt.graphics.Device; | |
| 22 import org.eclipse.swt.internal.Converter; | |
| 23 import org.eclipse.swt.internal.gtk.OS; | |
| 24 | |
| 25 | |
| 26 /** | |
| 27 * Instances of this class manage operating system resources that | |
| 28 * define how text looks when it is displayed. Fonts may be constructed | |
| 29 * by providing a device and either name, size and style information | |
| 30 * or a <code>FontData</code> object which encapsulates this data. | |
| 31 * <p> | |
| 32 * Application code must explicitly invoke the <code>Font.dispose()</code> | |
| 33 * method to release the operating system resources managed by each instance | |
| 34 * when those instances are no longer required. | |
| 35 * </p> | |
| 36 * | |
| 37 * @see FontData | |
| 38 * @see <a href="http://www.eclipse.org/swt/snippets/#font">Font snippets</a> | |
| 39 * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Examples: GraphicsExample, PaintExample</a> | |
| 40 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
| 41 */ | |
| 42 public final class Font : Resource { | |
| 43 | |
| 44 alias Resource.init_ init_; | |
| 45 /** | |
| 46 * the handle to the OS font resource | |
| 47 * (Warning: This field is platform dependent) | |
| 48 * <p> | |
| 49 * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT | |
| 50 * public API. It is marked public only so that it can be shared | |
| 51 * within the packages provided by SWT. It is not available on all | |
| 52 * platforms and should never be accessed from application code. | |
| 53 * </p> | |
| 54 */ | |
| 55 public PangoFontDescription* handle; | |
| 56 | |
| 57 this(Device device) { | |
| 58 super(device); | |
| 59 } | |
| 60 | |
| 61 /** | |
| 62 * Constructs a new font given a device and font data | |
| 63 * which describes the desired font's appearance. | |
| 64 * <p> | |
| 65 * You must dispose the font when it is no longer required. | |
| 66 * </p> | |
| 67 * | |
| 68 * @param device the device to create the font on | |
| 69 * @param fd the FontData that describes the desired font (must not be null) | |
| 70 * | |
| 71 * @exception IllegalArgumentException <ul> | |
| 72 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 73 * <li>ERROR_NULL_ARGUMENT - if the fd argument is null</li> | |
| 74 * </ul> | |
| 75 * @exception SWTError <ul> | |
| 76 * <li>ERROR_NO_HANDLES - if a font could not be created from the given font data</li> | |
| 77 * </ul> | |
| 78 */ | |
| 79 public this(Device device, FontData fd) { | |
| 80 super(device); | |
| 81 if (fd is null) SWT.error(SWT.ERROR_NULL_ARGUMENT); | |
| 82 init_(fd.getName(), fd.getHeightF(), fd.getStyle(), fd.str); | |
| 83 init_(); | |
| 84 } | |
| 85 | |
| 86 /** | |
| 87 * Constructs a new font given a device and an array | |
| 88 * of font data which describes the desired font's | |
| 89 * appearance. | |
| 90 * <p> | |
| 91 * You must dispose the font when it is no longer required. | |
| 92 * </p> | |
| 93 * | |
| 94 * @param device the device to create the font on | |
| 95 * @param fds the array of FontData that describes the desired font (must not be null) | |
| 96 * | |
| 97 * @exception IllegalArgumentException <ul> | |
| 98 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 99 * <li>ERROR_NULL_ARGUMENT - if the fds argument is null</li> | |
| 100 * <li>ERROR_INVALID_ARGUMENT - if the length of fds is zero</li> | |
| 101 * <li>ERROR_NULL_ARGUMENT - if any fd in the array is null</li> | |
| 102 * </ul> | |
| 103 * @exception SWTError <ul> | |
| 104 * <li>ERROR_NO_HANDLES - if a font could not be created from the given font data</li> | |
| 105 * </ul> | |
| 106 * | |
| 107 * @since 2.1 | |
| 108 */ | |
| 109 public this(Device device, FontData[] fds) { | |
| 110 super(device); | |
| 111 if (fds is null) SWT.error(SWT.ERROR_NULL_ARGUMENT); | |
| 112 if (fds.length is 0) SWT.error(SWT.ERROR_INVALID_ARGUMENT); | |
| 113 for (int i=0; i<fds.length; i++) { | |
| 114 if (fds[i] is null) SWT.error(SWT.ERROR_INVALID_ARGUMENT); | |
| 115 } | |
| 116 FontData fd = fds[0]; | |
| 117 init_(fd.getName(), fd.getHeightF(), fd.getStyle(), fd.str); | |
| 118 init_(); | |
| 119 } | |
| 120 | |
| 121 /** | |
| 122 * Constructs a new font given a device, a font name, | |
| 123 * the height of the desired font in points, and a font | |
| 124 * style. | |
| 125 * <p> | |
| 126 * You must dispose the font when it is no longer required. | |
| 127 * </p> | |
| 128 * | |
| 129 * @param device the device to create the font on | |
| 130 * @param name the name of the font (must not be null) | |
| 131 * @param height the font height in points | |
| 132 * @param style a bit or combination of NORMAL, BOLD, ITALIC | |
| 133 * | |
| 134 * @exception IllegalArgumentException <ul> | |
| 135 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 136 * <li>ERROR_NULL_ARGUMENT - if the name argument is null</li> | |
| 137 * <li>ERROR_INVALID_ARGUMENT - if the height is negative</li> | |
| 138 * </ul> | |
| 139 * @exception SWTError <ul> | |
| 140 * <li>ERROR_NO_HANDLES - if a font could not be created from the given arguments</li> | |
| 141 * </ul> | |
| 142 */ | |
|
120
536e43f63c81
Comprehensive update for Win32/Linux32 dmd-2.053/dmd-1.068+Tango-r5661
Denis Shelomovskij <verylonglogin.reg@gmail.com>
parents:
54
diff
changeset
|
143 public this(Device device, String name, int height, int style) { |
| 25 | 144 super(device); |
| 145 init_(name, height, style, null); | |
| 146 init_(); | |
| 147 } | |
| 148 | |
|
120
536e43f63c81
Comprehensive update for Win32/Linux32 dmd-2.053/dmd-1.068+Tango-r5661
Denis Shelomovskij <verylonglogin.reg@gmail.com>
parents:
54
diff
changeset
|
149 /*public*/ this(Device device, String name, float height, int style) { |
| 25 | 150 super(device); |
| 151 init_(name, height, style, null); | |
| 152 init_(); | |
| 153 } | |
| 154 | |
| 155 void destroy() { | |
| 156 OS.pango_font_description_free(handle); | |
| 157 handle = null; | |
| 158 } | |
| 159 | |
| 160 /** | |
| 161 * Compares the argument to the receiver, and returns true | |
| 162 * if they represent the <em>same</em> object using a class | |
| 163 * specific comparison. | |
| 164 * | |
| 165 * @param object the object to compare with this object | |
| 166 * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise | |
| 167 * | |
| 168 * @see #hashCode | |
| 169 */ | |
| 26 | 170 public override equals_t opEquals(Object object) { |
| 25 | 171 if (object is this) return true; |
| 172 if ( auto font = cast(Font)object ){ | |
| 173 return handle is font.handle; | |
| 174 } | |
| 175 return false; | |
| 176 } | |
| 177 | |
| 178 | |
| 179 /** | |
| 180 * Returns an array of <code>FontData</code>s representing the receiver. | |
| 181 * On Windows, only one FontData will be returned per font. On X however, | |
| 182 * a <code>Font</code> object <em>may</em> be composed of multiple X | |
| 183 * fonts. To support this case, we return an array of font data objects. | |
| 184 * | |
| 185 * @return an array of font data objects describing the receiver | |
| 186 * | |
| 187 * @exception SWTException <ul> | |
| 188 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 189 * </ul> | |
| 190 */ | |
| 191 public FontData[] getFontData() { | |
| 192 if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); | |
| 193 | |
| 194 auto family = OS.pango_font_description_get_family(handle); | |
| 54 | 195 String name = fromStringz( family )._idup(); |
| 25 | 196 float height = cast(float)OS.pango_font_description_get_size(handle) / OS.PANGO_SCALE; |
| 197 int pangoStyle = OS.pango_font_description_get_style(handle); | |
| 198 int pangoWeight = OS.pango_font_description_get_weight(handle); | |
| 199 int style = SWT.NORMAL; | |
| 200 if (pangoStyle is OS.PANGO_STYLE_ITALIC) style |= SWT.ITALIC; | |
| 201 if (pangoStyle is OS.PANGO_STYLE_OBLIQUE) style |= SWT.ROMAN; | |
| 202 if (pangoWeight >= OS.PANGO_WEIGHT_BOLD) style |= SWT.BOLD; | |
| 203 auto fontString = OS.pango_font_description_to_string (handle); | |
| 54 | 204 auto buffer = fromStringz( fontString )._idup(); |
| 25 | 205 FontData data = new FontData( buffer , height, style); |
| 206 OS.g_free (fontString); | |
| 207 data.str = buffer; | |
| 208 return [data]; | |
| 209 } | |
| 210 | |
| 211 /** | |
| 212 * Invokes platform specific functionality to allocate a new font. | |
| 213 * <p> | |
| 214 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 215 * API for <code>Font</code>. It is marked public only so that it | |
| 216 * can be shared within the packages provided by SWT. It is not | |
| 217 * available on all platforms, and should never be called from | |
| 218 * application code. | |
| 219 * </p> | |
| 220 * | |
| 221 * @param device the device on which to allocate the color | |
| 222 * @param handle the handle for the font | |
| 223 * | |
| 224 * @private | |
| 225 */ | |
| 226 public static Font gtk_new(Device device, PangoFontDescription* handle) { | |
| 227 Font font = new Font(device); | |
| 228 font.handle = handle; | |
| 229 return font; | |
| 230 } | |
| 231 | |
| 232 /** | |
| 233 * Returns an integer hash code for the receiver. Any two | |
| 234 * objects that return <code>true</code> when passed to | |
| 235 * <code>equals</code> must return the same value for this | |
| 236 * method. | |
| 237 * | |
| 238 * @return the receiver's hash | |
| 239 * | |
| 240 * @see #equals | |
| 241 */ | |
| 242 public override hash_t toHash() { | |
| 243 return cast(hash_t)/*64*/handle; | |
| 244 } | |
| 245 | |
|
120
536e43f63c81
Comprehensive update for Win32/Linux32 dmd-2.053/dmd-1.068+Tango-r5661
Denis Shelomovskij <verylonglogin.reg@gmail.com>
parents:
54
diff
changeset
|
246 void init_( String name, float height, int style, String fontString) { |
| 25 | 247 if (name is null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| 248 if (height < 0) SWT.error(SWT.ERROR_INVALID_ARGUMENT); | |
| 249 if (fontString !is null) { | |
| 250 handle = OS.pango_font_description_from_string (toStringz(fontString)); | |
| 251 if (handle is null) SWT.error(SWT.ERROR_NO_HANDLES); | |
| 252 } else { | |
| 253 handle = OS.pango_font_description_new(); | |
| 254 if (handle is null) SWT.error(SWT.ERROR_NO_HANDLES); | |
| 255 //byte[] buffer = Converter.wcsToMbcs(null, name, true); | |
| 256 OS.pango_font_description_set_family(handle, toStringz(name) ); | |
| 257 if (height > 0) { | |
| 258 OS.pango_font_description_set_size(handle, cast(int)(0.5f + height * OS.PANGO_SCALE)); | |
| 259 } | |
| 260 OS.pango_font_description_set_stretch(handle, OS.PANGO_STRETCH_NORMAL); | |
| 261 int pangoStyle = OS.PANGO_STYLE_NORMAL; | |
| 262 int pangoWeight = OS.PANGO_WEIGHT_NORMAL; | |
| 263 if ((style & SWT.ITALIC) !is 0) pangoStyle = OS.PANGO_STYLE_ITALIC; | |
| 264 if ((style & SWT.ROMAN) !is 0) pangoStyle = OS.PANGO_STYLE_OBLIQUE; | |
| 265 if ((style & SWT.BOLD) !is 0) pangoWeight = OS.PANGO_WEIGHT_BOLD; | |
| 266 OS.pango_font_description_set_style(handle, pangoStyle); | |
| 267 OS.pango_font_description_set_weight(handle, pangoWeight); | |
| 268 } | |
| 269 } | |
| 270 | |
| 271 /** | |
| 272 * Returns <code>true</code> if the font has been disposed, | |
| 273 * and <code>false</code> otherwise. | |
| 274 * <p> | |
| 275 * This method gets the dispose state for the font. | |
| 276 * When a font has been disposed, it is an error to | |
| 277 * invoke any other method using the font. | |
| 278 * | |
| 279 * @return <code>true</code> when the font is disposed and <code>false</code> otherwise | |
| 280 */ | |
| 281 public override bool isDisposed() { | |
| 282 return handle is null; | |
| 283 } | |
| 284 | |
| 285 /** | |
| 286 * Returns a string containing a concise, human-readable | |
| 287 * description of the receiver. | |
| 288 * | |
| 289 * @return a string representation of the receiver | |
| 290 */ | |
| 291 public String toString () { | |
| 292 if (isDisposed()) return "Font {*DISPOSED*}"; | |
| 293 return Format( "Font {{{}}", handle ); | |
| 294 } | |
| 295 | |
| 296 } |