Mercurial > projects > dwt-linux
annotate dwt/widgets/Button.d @ 238:380bad9f6852
reverted char[] to String
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Mon, 05 May 2008 00:42:55 +0200 |
| parents | 17f8449522fd |
| children | ce446666f5a2 |
| rev | line source |
|---|---|
| 72 | 1 /******************************************************************************* |
| 37 | 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 | |
| 72 | 10 * Port to the D programming language: |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 37 | 12 *******************************************************************************/ |
| 13 module dwt.widgets.Button; | |
| 14 | |
| 238 | 15 import dwt.dwthelper.utils; |
| 16 | |
| 37 | 17 import dwt.widgets.Control; |
| 18 | |
| 44 | 19 import dwt.internal.gtk.OS; |
| 71 | 20 import dwt.DWT; |
| 44 | 21 import dwt.graphics.Point; |
| 22 import dwt.graphics.Image; | |
| 23 import dwt.widgets.ImageList; | |
| 24 import dwt.widgets.Composite; | |
| 25 import dwt.events.SelectionListener; | |
| 26 import dwt.widgets.TypedListener; | |
| 27 import dwt.widgets.Decorations; | |
| 37 | 28 |
| 44 | 29 import tango.stdc.stringz; |
| 60 | 30 import tango.io.Stdout; |
| 37 | 31 |
| 32 /** | |
| 33 * Instances of this class represent a selectable user interface object that | |
| 34 * issues notification when pressed and released. | |
| 35 * <dl> | |
| 36 * <dt><b>Styles:</b></dt> | |
| 37 * <dd>ARROW, CHECK, PUSH, RADIO, TOGGLE, FLAT</dd> | |
| 38 * <dd>UP, DOWN, LEFT, RIGHT, CENTER</dd> | |
| 39 * <dt><b>Events:</b></dt> | |
| 40 * <dd>Selection</dd> | |
| 41 * </dl> | |
| 42 * <p> | |
| 43 * Note: Only one of the styles ARROW, CHECK, PUSH, RADIO, and TOGGLE | |
| 44 * may be specified. | |
| 45 * </p><p> | |
| 46 * Note: Only one of the styles LEFT, RIGHT, and CENTER may be specified. | |
| 47 * </p><p> | |
| 48 * Note: Only one of the styles UP, DOWN, LEFT, and RIGHT may be specified | |
| 49 * when the ARROW style is specified. | |
| 50 * </p><p> | |
| 51 * IMPORTANT: This class is intended to be subclassed <em>only</em> | |
| 71 | 52 * within the DWT implementation. |
| 37 | 53 * </p> |
| 54 */ | |
| 44 | 55 public class Button : Control { |
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56 |
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57 alias Control.computeSize computeSize; |
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58 alias Control.mnemonicHit mnemonicHit; |
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59 alias Control.mnemonicMatch mnemonicMatch; |
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60 alias Control.setBackgroundColor setBackgroundColor; |
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61 alias Control.setForegroundColor setForegroundColor; |
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62 |
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63 GtkWidget* boxHandle, labelHandle, imageHandle, arrowHandle, groupHandle; |
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64 bool selected; |
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65 ImageList imageList; |
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66 Image image; |
| 238 | 67 String text; |
| 37 | 68 |
| 69 /** | |
| 70 * Constructs a new instance of this class given its parent | |
| 71 * and a style value describing its behavior and appearance. | |
| 72 * <p> | |
| 73 * The style value is either one of the style constants defined in | |
| 71 | 74 * class <code>DWT</code> which is applicable to instances of this |
| 37 | 75 * class, or must be built by <em>bitwise OR</em>'ing together |
| 76 * (that is, using the <code>int</code> "|" operator) two or more | |
| 71 | 77 * of those <code>DWT</code> style constants. The class description |
| 37 | 78 * lists the style constants that are applicable to the class. |
| 79 * Style bits are also inherited from superclasses. | |
| 80 * </p> | |
| 81 * | |
| 82 * @param parent a composite control which will be the parent of the new instance (cannot be null) | |
| 83 * @param style the style of control to construct | |
| 84 * | |
| 85 * @exception IllegalArgumentException <ul> | |
| 86 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> | |
| 87 * </ul> | |
| 71 | 88 * @exception DWTException <ul> |
| 37 | 89 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| 90 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> | |
| 91 * </ul> | |
| 92 * | |
| 71 | 93 * @see DWT#ARROW |
| 94 * @see DWT#CHECK | |
| 95 * @see DWT#PUSH | |
| 96 * @see DWT#RADIO | |
| 97 * @see DWT#TOGGLE | |
| 98 * @see DWT#FLAT | |
| 99 * @see DWT#LEFT | |
| 100 * @see DWT#RIGHT | |
| 101 * @see DWT#CENTER | |
| 37 | 102 * @see Widget#checkSubclass |
| 103 * @see Widget#getStyle | |
| 104 */ | |
| 44 | 105 public this (Composite parent, int style) { |
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106 super (parent, checkStyle (style)); |
| 37 | 107 } |
| 108 | |
| 109 static int checkStyle (int style) { | |
| 71 | 110 style = checkBits (style, DWT.PUSH, DWT.ARROW, DWT.CHECK, DWT.RADIO, DWT.TOGGLE, 0); |
| 111 if ((style & (DWT.PUSH | DWT.TOGGLE)) !is 0) { | |
| 112 return checkBits (style, DWT.CENTER, DWT.LEFT, DWT.RIGHT, 0, 0, 0); | |
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113 } |
| 71 | 114 if ((style & (DWT.CHECK | DWT.RADIO)) !is 0) { |
| 115 return checkBits (style, DWT.LEFT, DWT.RIGHT, DWT.CENTER, 0, 0, 0); | |
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116 } |
| 71 | 117 if ((style & DWT.ARROW) !is 0) { |
| 118 style |= DWT.NO_FOCUS; | |
| 119 return checkBits (style, DWT.UP, DWT.DOWN, DWT.LEFT, DWT.RIGHT, 0, 0); | |
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120 } |
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121 return style; |
| 37 | 122 } |
| 123 | |
| 124 /** | |
| 125 * Adds the listener to the collection of listeners who will | |
| 126 * be notified when the control is selected by the user, by sending | |
| 127 * it one of the messages defined in the <code>SelectionListener</code> | |
| 128 * interface. | |
| 129 * <p> | |
| 130 * <code>widgetSelected</code> is called when the control is selected by the user. | |
| 131 * <code>widgetDefaultSelected</code> is not called. | |
| 132 * </p> | |
| 133 * | |
| 134 * @param listener the listener which should be notified | |
| 135 * | |
| 136 * @exception IllegalArgumentException <ul> | |
| 137 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 138 * </ul> | |
| 71 | 139 * @exception DWTException <ul> |
| 37 | 140 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 141 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 142 * </ul> | |
| 143 * | |
| 144 * @see SelectionListener | |
| 145 * @see #removeSelectionListener | |
| 146 * @see SelectionEvent | |
| 147 */ | |
| 148 public void addSelectionListener (SelectionListener listener) { | |
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149 checkWidget (); |
| 71 | 150 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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151 TypedListener typedListener = new TypedListener (listener); |
| 71 | 152 addListener (DWT.Selection,typedListener); |
| 153 addListener (DWT.DefaultSelection,typedListener); | |
| 37 | 154 } |
| 155 | |
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156 override public Point computeSize (int wHint, int hHint, bool changed) { |
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157 checkWidget (); |
| 71 | 158 if (wHint !is DWT.DEFAULT && wHint < 0) wHint = 0; |
| 159 if (hHint !is DWT.DEFAULT && hHint < 0) hHint = 0; | |
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160 /* |
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161 * Feature in GTK, GtkCheckButton and GtkRadioButton allocate |
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162 * only the minimum size necessary for its child. This causes the child |
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163 * alignment to fail. The fix is to set the child size to the size |
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164 * of the button. |
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165 */ |
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166 forceResize (); |
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167 int reqWidth = -1, reqHeight = -1; |
| 71 | 168 if ((style & (DWT.CHECK | DWT.RADIO)) !is 0) { |
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169 OS.gtk_widget_get_size_request (boxHandle, &reqWidth, &reqHeight); |
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170 OS.gtk_widget_set_size_request (boxHandle, -1, -1); |
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171 } |
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172 Point size = computeNativeSize (handle, wHint, hHint, changed); |
| 71 | 173 if ((style & (DWT.CHECK | DWT.RADIO)) !is 0) { |
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174 OS.gtk_widget_set_size_request (boxHandle, reqWidth, reqHeight); |
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175 } |
| 71 | 176 if (wHint !is DWT.DEFAULT || hHint !is DWT.DEFAULT) { |
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177 if ((OS.GTK_WIDGET_FLAGS (handle) & OS.GTK_CAN_DEFAULT) !is 0) { |
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178 GtkBorder border; |
| 44 | 179 GtkBorder* buffer; |
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180 OS.gtk_widget_style_get1 (handle, OS.default_border.ptr, cast(int*)&buffer ); |
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181 if (buffer !is null) { |
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182 border = *buffer; |
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183 } else { |
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184 /* Use the GTK+ default value of 1 for each. */ |
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185 border.left = border.right = border.top = border.bottom = 1; |
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186 } |
| 71 | 187 if (wHint !is DWT.DEFAULT) size.x += border.left + border.right; |
| 188 if (hHint !is DWT.DEFAULT) size.y += border.top + border.bottom; | |
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189 } |
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190 } |
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191 return size; |
| 37 | 192 } |
| 193 | |
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194 override void createHandle (int index) { |
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195 state |= HANDLE; |
| 71 | 196 if ((style & DWT.PUSH) is 0) state |= THEME_BACKGROUND; |
| 197 int bits = DWT.ARROW | DWT.TOGGLE | DWT.CHECK | DWT.RADIO | DWT.PUSH; | |
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198 fixedHandle = cast(GtkWidget*)OS.g_object_new (display.gtk_fixed_get_type (), null); |
| 71 | 199 if (fixedHandle is null) error (DWT.ERROR_NO_HANDLES); |
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200 OS.gtk_fixed_set_has_window (cast(GtkFixed*)fixedHandle, true); |
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201 switch (style & bits) { |
| 71 | 202 case DWT.ARROW: |
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203 int arrow_type = OS.GTK_ARROW_UP; |
| 71 | 204 if ((style & DWT.UP) !is 0) arrow_type = OS.GTK_ARROW_UP; |
| 205 if ((style & DWT.DOWN) !is 0) arrow_type = OS.GTK_ARROW_DOWN; | |
| 206 if ((style & DWT.LEFT) !is 0) arrow_type = OS.GTK_ARROW_LEFT; | |
| 207 if ((style & DWT.RIGHT) !is 0) arrow_type = OS.GTK_ARROW_RIGHT; | |
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208 handle = OS.gtk_button_new (); |
| 71 | 209 if (handle is null) error (DWT.ERROR_NO_HANDLES); |
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210 arrowHandle = OS.gtk_arrow_new (arrow_type, OS.GTK_SHADOW_OUT); |
| 71 | 211 if (arrowHandle is null) error (DWT.ERROR_NO_HANDLES); |
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212 break; |
| 71 | 213 case DWT.TOGGLE: |
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214 handle = OS.gtk_toggle_button_new (); |
| 71 | 215 if (handle is null) error (DWT.ERROR_NO_HANDLES); |
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216 break; |
| 71 | 217 case DWT.CHECK: |
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218 handle = OS.gtk_check_button_new (); |
| 71 | 219 if (handle is null) error (DWT.ERROR_NO_HANDLES); |
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220 break; |
| 71 | 221 case DWT.RADIO: |
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222 /* |
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223 * Feature in GTK. In GTK, radio button must always be part of |
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224 * a radio button group. In a GTK radio group, one button is always |
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225 * selected. This means that it is not possible to have a single |
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226 * radio button that is unselected. This is necessary to allow |
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227 * applications to implement their own radio behavior or use radio |
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228 * buttons outside of radio groups. The fix is to create a hidden |
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229 * radio button for each radio button we create and add them |
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230 * to the same group. This allows the visible button to be |
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231 * unselected. |
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232 */ |
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233 groupHandle = cast(GtkWidget*)OS.gtk_radio_button_new (null); |
| 71 | 234 if (groupHandle is null) error (DWT.ERROR_NO_HANDLES); |
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235 OS.g_object_ref (groupHandle); |
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236 OS.gtk_object_sink (cast(GtkObject*)groupHandle); |
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237 handle = OS.gtk_radio_button_new ( OS.gtk_radio_button_get_group (cast(GtkRadioButton*)groupHandle)); |
| 71 | 238 if (handle is null) error (DWT.ERROR_NO_HANDLES); |
|
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239 break; |
| 71 | 240 case DWT.PUSH: |
|
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241 default: |
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242 handle = OS.gtk_button_new (); |
| 71 | 243 if (handle is null) error (DWT.ERROR_NO_HANDLES); |
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244 OS.GTK_WIDGET_SET_FLAGS(handle, OS.GTK_CAN_DEFAULT); |
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245 break; |
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246 } |
| 71 | 247 if ((style & DWT.ARROW) !is 0) { |
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248 OS.gtk_container_add (cast(GtkContainer*)handle, arrowHandle); |
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249 } else { |
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250 boxHandle = OS.gtk_hbox_new (false, 4); |
| 71 | 251 if (boxHandle is null) error (DWT.ERROR_NO_HANDLES); |
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252 labelHandle = OS.gtk_label_new_with_mnemonic (null); |
| 71 | 253 if (labelHandle is null) error (DWT.ERROR_NO_HANDLES); |
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254 imageHandle = OS.gtk_image_new (); |
| 71 | 255 if (imageHandle is null) error (DWT.ERROR_NO_HANDLES); |
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256 OS.gtk_container_add (cast(GtkContainer*)handle, boxHandle); |
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257 OS.gtk_container_add (cast(GtkContainer*)boxHandle, imageHandle); |
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258 OS.gtk_container_add (cast(GtkContainer*)boxHandle, labelHandle); |
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259 } |
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260 OS.gtk_container_add (cast(GtkContainer*)fixedHandle, handle); |
| 37 | 261 |
| 71 | 262 if ((style & DWT.ARROW) !is 0) return; |
| 263 _setAlignment (style & (DWT.LEFT | DWT.CENTER | DWT.RIGHT)); | |
| 37 | 264 } |
| 265 | |
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266 override void createWidget (int index) { |
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267 super.createWidget (index); |
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268 text = ""; |
| 37 | 269 } |
| 270 | |
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271 override void deregister () { |
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272 super.deregister (); |
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273 if (boxHandle !is null) display.removeWidget (boxHandle); |
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274 if (labelHandle !is null) display.removeWidget (labelHandle); |
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275 if (imageHandle !is null) display.removeWidget (imageHandle); |
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276 if (arrowHandle !is null) display.removeWidget (arrowHandle); |
| 37 | 277 } |
| 278 | |
| 44 | 279 override GtkWidget* fontHandle () { |
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280 if (labelHandle !is null) return labelHandle; |
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281 return super.fontHandle (); |
| 37 | 282 } |
| 283 | |
| 284 /** | |
| 285 * Returns a value which describes the position of the | |
| 286 * text or image in the receiver. The value will be one of | |
| 287 * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code> | |
| 288 * unless the receiver is an <code>ARROW</code> button, in | |
| 289 * which case, the alignment will indicate the direction of | |
| 290 * the arrow (one of <code>LEFT</code>, <code>RIGHT</code>, | |
| 291 * <code>UP</code> or <code>DOWN</code>). | |
| 292 * | |
| 293 * @return the alignment | |
| 294 * | |
| 71 | 295 * @exception DWTException <ul> |
| 37 | 296 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 297 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 298 * </ul> | |
| 299 */ | |
| 300 public int getAlignment () { | |
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301 checkWidget (); |
| 71 | 302 if ((style & DWT.ARROW) !is 0) { |
| 303 if ((style & DWT.UP) !is 0) return DWT.UP; | |
| 304 if ((style & DWT.DOWN) !is 0) return DWT.DOWN; | |
| 305 if ((style & DWT.LEFT) !is 0) return DWT.LEFT; | |
| 306 if ((style & DWT.RIGHT) !is 0) return DWT.RIGHT; | |
| 307 return DWT.UP; | |
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308 } |
| 71 | 309 if ((style & DWT.LEFT) !is 0) return DWT.LEFT; |
| 310 if ((style & DWT.CENTER) !is 0) return DWT.CENTER; | |
| 311 if ((style & DWT.RIGHT) !is 0) return DWT.RIGHT; | |
| 312 return DWT.LEFT; | |
| 37 | 313 } |
| 314 | |
| 315 /** | |
| 316 * Returns the receiver's image if it has one, or null | |
| 317 * if it does not. | |
| 318 * | |
| 319 * @return the receiver's image | |
| 320 * | |
| 71 | 321 * @exception DWTException <ul> |
| 37 | 322 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 323 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 324 * </ul> | |
| 325 */ | |
| 326 public Image getImage () { | |
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327 checkWidget (); |
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328 return image; |
| 37 | 329 } |
| 330 | |
| 238 | 331 override String getNameText () { |
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332 return getText (); |
| 37 | 333 } |
| 334 | |
| 335 /** | |
| 336 * Returns <code>true</code> if the receiver is selected, | |
| 337 * and false otherwise. | |
| 338 * <p> | |
| 339 * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, | |
| 340 * it is selected when it is checked. When it is of type <code>TOGGLE</code>, | |
| 341 * it is selected when it is pushed in. If the receiver is of any other type, | |
| 342 * this method returns false. | |
| 343 * | |
| 344 * @return the selection state | |
| 345 * | |
| 71 | 346 * @exception DWTException <ul> |
| 37 | 347 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 348 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 349 * </ul> | |
| 350 */ | |
| 44 | 351 public bool getSelection () { |
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352 checkWidget (); |
| 71 | 353 if ((style & (DWT.CHECK | DWT.RADIO | DWT.TOGGLE)) is 0) return false; |
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354 return cast(bool)OS.gtk_toggle_button_get_active (cast(GtkToggleButton*)handle); |
| 37 | 355 } |
| 356 | |
| 357 /** | |
| 358 * Returns the receiver's text, which will be an empty | |
| 359 * string if it has never been set or if the receiver is | |
| 360 * an <code>ARROW</code> button. | |
| 361 * | |
| 362 * @return the receiver's text | |
| 363 * | |
| 71 | 364 * @exception DWTException <ul> |
| 37 | 365 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 366 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 367 * </ul> | |
| 368 */ | |
| 238 | 369 public String getText () { |
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370 checkWidget(); |
| 71 | 371 if ((style & DWT.ARROW) !is 0) return ""; |
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372 return text; |
| 37 | 373 } |
| 374 | |
| 44 | 375 override int /*long*/ gtk_button_press_event (GtkWidget* widget, GdkEventButton* event) { |
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376 auto result = super.gtk_button_press_event (widget, event); |
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377 if (result !is 0) return result; |
| 71 | 378 if ((style & DWT.RADIO) !is 0) selected = getSelection (); |
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379 return result; |
| 37 | 380 } |
| 381 | |
| 44 | 382 override int /*long*/ gtk_clicked (GtkWidget* widget) { |
| 71 | 383 if ((style & DWT.RADIO) !is 0) { |
| 384 if ((parent.getStyle () & DWT.NO_RADIO_GROUP) !is 0) { | |
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385 setSelection (!selected); |
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386 } else { |
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387 selectRadio (); |
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388 } |
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389 } |
| 71 | 390 postEvent (DWT.Selection); |
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391 return 0; |
| 37 | 392 } |
| 393 | |
| 44 | 394 override int /*long*/ gtk_focus_in_event (GtkWidget* widget, GdkEventFocus* event) { |
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395 auto result = super.gtk_focus_in_event (widget, event); |
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396 // widget could be disposed at this point |
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397 if (handle is null) return 0; |
| 71 | 398 if ((style & DWT.PUSH) !is 0 && OS.GTK_WIDGET_HAS_DEFAULT (handle)) { |
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399 Decorations menuShell = menuShell (); |
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400 menuShell.defaultButton = this; |
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401 } |
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402 return result; |
| 37 | 403 } |
| 404 | |
| 44 | 405 override int /*long*/ gtk_focus_out_event (GtkWidget* widget, GdkEventFocus* event) { |
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406 auto result = super.gtk_focus_out_event (widget, event); |
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407 // widget could be disposed at this point |
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408 if (handle is null) return 0; |
| 71 | 409 if ((style & DWT.PUSH) !is 0 && !OS.GTK_WIDGET_HAS_DEFAULT (handle)) { |
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410 Decorations menuShell = menuShell (); |
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411 if (menuShell.defaultButton is this) { |
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412 menuShell.defaultButton = null; |
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413 } |
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414 } |
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415 return result; |
| 37 | 416 } |
| 417 | |
| 44 | 418 override int /*long*/ gtk_key_press_event (GtkWidget* widget, GdkEventKey* event) { |
|
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419 auto result = super.gtk_key_press_event (widget, event); |
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420 if (result !is 0) return result; |
| 71 | 421 if ((style & DWT.RADIO) !is 0) selected = getSelection (); |
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422 return result; |
| 37 | 423 } |
| 424 | |
|
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425 override void hookEvents () { |
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426 super.hookEvents(); |
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427 OS.g_signal_connect_closure (handle, OS.clicked.ptr, display.closures [CLICKED], false); |
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428 if (labelHandle !is null) { |
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429 OS.g_signal_connect_closure_by_id (cast(void*)labelHandle, display.signalIds [MNEMONIC_ACTIVATE], 0, display.closures [MNEMONIC_ACTIVATE], false); |
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430 } |
| 37 | 431 } |
| 432 | |
|
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433 override bool isDescribedByLabel () { |
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434 return false; |
| 37 | 435 } |
| 436 | |
|
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437 override bool mnemonicHit (wchar key) { |
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438 if (labelHandle is null) return false; |
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439 bool result = super.mnemonicHit (labelHandle, key); |
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440 if (result) setFocus (); |
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441 return result; |
| 37 | 442 } |
| 443 | |
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444 override bool mnemonicMatch (wchar key) { |
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445 if (labelHandle is null) return false; |
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446 return mnemonicMatch (labelHandle, key); |
| 37 | 447 } |
| 448 | |
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449 override void register () { |
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450 super.register (); |
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451 if (boxHandle !is null) display.addWidget (boxHandle, this); |
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452 if (labelHandle !is null) display.addWidget (labelHandle, this); |
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453 if (imageHandle !is null) display.addWidget (imageHandle, this); |
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454 if (arrowHandle !is null) display.addWidget (arrowHandle, this); |
| 37 | 455 } |
| 456 | |
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457 override void releaseHandle () { |
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458 super.releaseHandle (); |
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459 boxHandle = imageHandle = labelHandle = arrowHandle = null; |
| 37 | 460 } |
| 461 | |
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462 override void releaseWidget () { |
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463 super.releaseWidget (); |
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464 if (groupHandle !is null) OS.g_object_unref (groupHandle); |
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465 groupHandle = null; |
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466 if (imageList !is null) imageList.dispose (); |
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467 imageList = null; |
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468 image = null; |
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469 text = null; |
| 37 | 470 } |
| 471 | |
| 472 /** | |
| 473 * Removes the listener from the collection of listeners who will | |
| 474 * be notified when the control is selected by the user. | |
| 475 * | |
| 476 * @param listener the listener which should no longer be notified | |
| 477 * | |
| 478 * @exception IllegalArgumentException <ul> | |
| 479 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 480 * </ul> | |
| 71 | 481 * @exception DWTException <ul> |
| 37 | 482 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 483 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 484 * </ul> | |
| 485 * | |
| 486 * @see SelectionListener | |
| 487 * @see #addSelectionListener | |
| 488 */ | |
| 489 public void removeSelectionListener (SelectionListener listener) { | |
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490 checkWidget(); |
| 71 | 491 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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492 if (eventTable is null) return; |
| 71 | 493 eventTable.unhook (DWT.Selection, listener); |
| 494 eventTable.unhook (DWT.DefaultSelection,listener); | |
| 37 | 495 } |
| 496 | |
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497 override void resizeHandle (int width, int height) { |
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498 super.resizeHandle (width, height); |
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499 /* |
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500 * Feature in GTK, GtkCheckButton and GtkRadioButton allocate |
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501 * only the minimum size necessary for its child. This causes the child |
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502 * alignment to fail. The fix is to set the child size to the size |
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503 * of the button. |
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504 */ |
| 71 | 505 if ((style & (DWT.CHECK | DWT.RADIO)) !is 0) { |
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506 OS.gtk_widget_set_size_request (boxHandle, width, -1); |
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507 } |
| 37 | 508 } |
| 509 | |
| 510 void selectRadio () { | |
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511 /* |
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512 * This code is intentionally commented. When two groups |
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513 * of radio buttons with the same parent are separated by |
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514 * another control, the correct behavior should be that |
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515 * the two groups act independently. This is consistent |
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516 * with radio tool and menu items. The commented code |
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517 * implements this behavior. |
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518 */ |
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519 // int index = 0; |
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520 // Control [] children = parent._getChildren (); |
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521 // while (index < children.length && children [index] !is this) index++; |
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522 // int i = index - 1; |
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523 // while (i >= 0 && children [i].setRadioSelection (false)) --i; |
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524 // int j = index + 1; |
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525 // while (j < children.length && children [j].setRadioSelection (false)) j++; |
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526 // setSelection (true); |
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527 Control [] children = parent._getChildren (); |
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528 for (int i=0; i<children.length; i++) { |
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529 Control child = children [i]; |
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530 if (this !is child) child.setRadioSelection (false); |
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531 } |
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532 setSelection (true); |
| 37 | 533 } |
| 534 | |
| 535 /** | |
| 536 * Controls how text, images and arrows will be displayed | |
| 537 * in the receiver. The argument should be one of | |
| 538 * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code> | |
| 539 * unless the receiver is an <code>ARROW</code> button, in | |
| 540 * which case, the argument indicates the direction of | |
| 541 * the arrow (one of <code>LEFT</code>, <code>RIGHT</code>, | |
| 542 * <code>UP</code> or <code>DOWN</code>). | |
| 543 * | |
| 544 * @param alignment the new alignment | |
| 545 * | |
| 71 | 546 * @exception DWTException <ul> |
| 37 | 547 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 548 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 549 * </ul> | |
| 550 */ | |
| 551 public void setAlignment (int alignment) { | |
|
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552 checkWidget (); |
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553 _setAlignment (alignment); |
| 37 | 554 } |
| 555 | |
| 556 void _setAlignment (int alignment) { | |
| 71 | 557 if ((style & DWT.ARROW) !is 0) { |
| 558 if ((style & (DWT.UP | DWT.DOWN | DWT.LEFT | DWT.RIGHT)) is 0) return; | |
| 559 style &= ~(DWT.UP | DWT.DOWN | DWT.LEFT | DWT.RIGHT); | |
| 560 style |= alignment & (DWT.UP | DWT.DOWN | DWT.LEFT | DWT.RIGHT); | |
|
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561 int arrow_type = OS.GTK_ARROW_UP; |
| 71 | 562 bool isRTL = (style & DWT.RIGHT_TO_LEFT) !is 0; |
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563 switch (alignment) { |
| 71 | 564 case DWT.UP: arrow_type = OS.GTK_ARROW_UP; break; |
| 565 case DWT.DOWN: arrow_type = OS.GTK_ARROW_DOWN; break; | |
| 566 case DWT.LEFT: arrow_type = isRTL ? OS.GTK_ARROW_RIGHT : OS.GTK_ARROW_LEFT; break; | |
| 567 case DWT.RIGHT: arrow_type = isRTL ? OS.GTK_ARROW_LEFT : OS.GTK_ARROW_RIGHT; break; | |
|
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568 default: |
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569 } |
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570 OS.gtk_arrow_set (cast(GtkArrow*)arrowHandle, arrow_type, OS.GTK_SHADOW_OUT); |
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571 return; |
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572 } |
| 71 | 573 if ((alignment & (DWT.LEFT | DWT.RIGHT | DWT.CENTER)) is 0) return; |
| 574 style &= ~(DWT.LEFT | DWT.RIGHT | DWT.CENTER); | |
| 575 style |= alignment & (DWT.LEFT | DWT.RIGHT | DWT.CENTER); | |
|
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576 /* Alignment not honoured when image and text are visible */ |
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577 bool bothVisible = OS.GTK_WIDGET_VISIBLE (labelHandle) && OS.GTK_WIDGET_VISIBLE (imageHandle); |
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578 if (bothVisible) { |
| 71 | 579 if ((style & (DWT.RADIO | DWT.CHECK)) !is 0) alignment = DWT.LEFT; |
| 580 if ((style & (DWT.PUSH | DWT.TOGGLE)) !is 0) alignment = DWT.CENTER; | |
|
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581 } |
| 71 | 582 if ((alignment & DWT.LEFT) !is 0) { |
|
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583 if (bothVisible) { |
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584 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, labelHandle, false, false, 0, OS.GTK_PACK_START); |
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|
585 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, imageHandle, false, false, 0, OS.GTK_PACK_START); |
|
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586 } |
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587 OS.gtk_misc_set_alignment (cast(GtkMisc*)labelHandle, 0.0f, 0.5f); |
|
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588 OS.gtk_label_set_justify (cast(GtkLabel*)labelHandle, OS.GTK_JUSTIFY_LEFT); |
|
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589 OS.gtk_misc_set_alignment (cast(GtkMisc*)imageHandle, 0.0f, 0.5f); |
|
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590 return; |
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591 } |
| 71 | 592 if ((alignment & DWT.CENTER) !is 0) { |
|
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593 if (bothVisible) { |
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594 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, labelHandle, true, true, 0, OS.GTK_PACK_END); |
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595 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, imageHandle, true, true, 0, OS.GTK_PACK_START); |
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596 OS.gtk_misc_set_alignment (cast(GtkMisc*)labelHandle, 0f, 0.5f); |
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597 OS.gtk_misc_set_alignment (cast(GtkMisc*)imageHandle, 1f, 0.5f); |
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598 } else { |
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599 OS.gtk_misc_set_alignment (cast(GtkMisc*)labelHandle, 0.5f, 0.5f); |
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600 OS.gtk_label_set_justify (cast(GtkLabel*)labelHandle, OS.GTK_JUSTIFY_CENTER); |
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601 OS.gtk_misc_set_alignment (cast(GtkMisc*)imageHandle, 0.5f, 0.5f); |
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602 } |
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603 return; |
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604 } |
| 71 | 605 if ((alignment & DWT.RIGHT) !is 0) { |
|
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606 if (bothVisible) { |
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607 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, labelHandle, false, false, 0, OS.GTK_PACK_END); |
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608 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, imageHandle, false, false, 0, OS.GTK_PACK_END); |
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609 } |
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610 OS.gtk_misc_set_alignment (cast(GtkMisc*)labelHandle, 1.0f, 0.5f); |
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611 OS.gtk_label_set_justify (cast(GtkLabel*)labelHandle, OS.GTK_JUSTIFY_RIGHT); |
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612 OS.gtk_misc_set_alignment (cast(GtkMisc*)imageHandle, 1.0f, 0.5f); |
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613 return; |
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614 } |
| 37 | 615 } |
| 616 | |
| 44 | 617 override void setBackgroundColor (GdkColor* color) { |
|
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618 super.setBackgroundColor (color); |
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619 setBackgroundColor(fixedHandle, color); |
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620 if (labelHandle !is null) setBackgroundColor(labelHandle, color); |
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621 if (imageHandle !is null) setBackgroundColor(imageHandle, color); |
| 37 | 622 } |
| 623 | |
|
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624 override void setFontDescription (PangoFontDescription* font) { |
|
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625 super.setFontDescription (font); |
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626 if (labelHandle !is null) OS.gtk_widget_modify_font (labelHandle, font); |
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627 if (imageHandle !is null) OS.gtk_widget_modify_font (imageHandle, font); |
| 37 | 628 } |
| 629 | |
|
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630 override bool setRadioSelection (bool value) { |
| 71 | 631 if ((style & DWT.RADIO) is 0) return false; |
|
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632 if (getSelection () !is value) { |
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633 setSelection (value); |
| 71 | 634 postEvent (DWT.Selection); |
|
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635 } |
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636 return true; |
| 37 | 637 } |
| 638 | |
| 44 | 639 override void setForegroundColor (GdkColor* color) { |
|
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640 super.setForegroundColor (color); |
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641 setForegroundColor (fixedHandle, color); |
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642 if (labelHandle !is null) setForegroundColor (labelHandle, color); |
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643 if (imageHandle !is null) setForegroundColor (imageHandle, color); |
| 37 | 644 } |
| 645 | |
| 646 /** | |
| 647 * Sets the receiver's image to the argument, which may be | |
| 648 * <code>null</code> indicating that no image should be displayed. | |
| 649 * <p> | |
| 650 * Note that a Button can display an image and text simultaneously | |
| 651 * on Windows (starting with XP), GTK+ and OSX. On other platforms, | |
| 652 * a Button that has an image and text set into it will display the | |
| 653 * image or text that was set most recently. | |
| 654 * </p> | |
| 655 * @param image the image to display on the receiver (may be <code>null</code>) | |
| 656 * | |
| 657 * @exception IllegalArgumentException <ul> | |
| 658 * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> | |
| 659 * </ul> | |
| 71 | 660 * @exception DWTException <ul> |
| 37 | 661 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 662 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 663 * </ul> | |
| 664 */ | |
| 665 public void setImage (Image image) { | |
|
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666 checkWidget (); |
| 71 | 667 if ((style & DWT.ARROW) !is 0) return; |
|
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668 if (imageList !is null) imageList.dispose (); |
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669 imageList = null; |
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670 if (image !is null) { |
| 71 | 671 if (image.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT); |
|
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672 imageList = new ImageList (); |
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673 int imageIndex = imageList.add (image); |
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674 auto pixbuf = imageList.getPixbuf (imageIndex); |
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675 OS.gtk_image_set_from_pixbuf (cast(GtkImage*)imageHandle, pixbuf); |
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676 if (text.length is 0) OS.gtk_widget_hide (labelHandle); |
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677 OS.gtk_widget_show (imageHandle); |
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678 } else { |
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679 OS.gtk_image_set_from_pixbuf (cast(GtkImage*)imageHandle, null); |
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680 OS.gtk_widget_show (labelHandle); |
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681 OS.gtk_widget_hide (imageHandle); |
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682 } |
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683 this.image = image; |
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684 _setAlignment (style); |
| 37 | 685 } |
| 686 | |
|
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|
687 override void setOrientation () { |
|
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688 super.setOrientation (); |
| 71 | 689 if ((style & DWT.RIGHT_TO_LEFT) !is 0) { |
|
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690 if (labelHandle !is null) OS.gtk_widget_set_direction (labelHandle, OS.GTK_TEXT_DIR_RTL); |
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691 if (imageHandle !is null) OS.gtk_widget_set_direction (imageHandle, OS.GTK_TEXT_DIR_RTL); |
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692 if (arrowHandle !is null) { |
| 71 | 693 switch (style & (DWT.LEFT | DWT.RIGHT)) { |
| 694 case DWT.LEFT: OS.gtk_arrow_set (cast(GtkArrow*)arrowHandle, OS.GTK_ARROW_RIGHT, OS.GTK_SHADOW_OUT); break; | |
| 695 case DWT.RIGHT: OS.gtk_arrow_set (cast(GtkArrow*)arrowHandle, OS.GTK_ARROW_LEFT, OS.GTK_SHADOW_OUT); break; | |
|
55
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Checked and inserted missing default switch cases.
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|
696 default: |
|
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697 } |
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698 } |
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699 } |
| 37 | 700 } |
| 701 | |
| 702 /** | |
| 703 * Sets the selection state of the receiver, if it is of type <code>CHECK</code>, | |
| 704 * <code>RADIO</code>, or <code>TOGGLE</code>. | |
| 705 * | |
| 706 * <p> | |
| 707 * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, | |
| 708 * it is selected when it is checked. When it is of type <code>TOGGLE</code>, | |
| 709 * it is selected when it is pushed in. | |
| 710 * | |
| 711 * @param selected the new selection state | |
| 712 * | |
| 71 | 713 * @exception DWTException <ul> |
| 37 | 714 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 715 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 716 * </ul> | |
| 717 */ | |
| 44 | 718 public void setSelection (bool selected) { |
|
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719 checkWidget(); |
| 71 | 720 if ((style & (DWT.CHECK | DWT.RADIO | DWT.TOGGLE)) is 0) return; |
|
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|
721 OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCLICKED); |
|
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722 OS.gtk_toggle_button_set_active (cast(GtkToggleButton*)handle, selected); |
| 71 | 723 if ((style & DWT.RADIO) !is 0) OS.gtk_toggle_button_set_active (cast(GtkToggleButton*)groupHandle, !selected); |
|
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|
724 OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCLICKED); |
| 37 | 725 } |
| 726 | |
| 727 /** | |
| 728 * Sets the receiver's text. | |
| 729 * <p> | |
| 730 * This method sets the button label. The label may include | |
| 731 * the mnemonic character but must not contain line delimiters. | |
| 732 * </p> | |
| 733 * <p> | |
| 734 * Mnemonics are indicated by an '&' that causes the next | |
| 735 * character to be the mnemonic. When the user presses a | |
| 736 * key sequence that matches the mnemonic, a selection | |
| 737 * event occurs. On most platforms, the mnemonic appears | |
| 738 * underlined but may be emphasized in a platform specific | |
| 739 * manner. The mnemonic indicator character '&' can be | |
| 740 * escaped by doubling it in the string, causing a single | |
| 741 * '&' to be displayed. | |
| 742 * </p><p> | |
| 743 * Note that a Button can display an image and text simultaneously | |
| 744 * on Windows (starting with XP), GTK+ and OSX. On other platforms, | |
| 745 * a Button that has an image and text set into it will display the | |
| 746 * image or text that was set most recently. | |
| 747 * </p> | |
| 748 * @param string the new text | |
| 749 * | |
| 750 * @exception IllegalArgumentException <ul> | |
| 751 * <li>ERROR_NULL_ARGUMENT - if the text is null</li> | |
| 752 * </ul> | |
| 71 | 753 * @exception DWTException <ul> |
| 37 | 754 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 755 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 756 * </ul> | |
| 757 */ | |
| 238 | 758 public void setText (String string) { |
|
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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changeset
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759 checkWidget (); |
| 71 | 760 if (string is null) error (DWT.ERROR_NULL_ARGUMENT); |
| 761 if ((style & DWT.ARROW) !is 0) return; | |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
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parents:
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changeset
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762 text = string; |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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changeset
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763 char [] chars = fixMnemonic (string); |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
58
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changeset
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764 OS.gtk_label_set_text_with_mnemonic (cast(GtkLabel*)labelHandle, toStringz(chars)); |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
58
diff
changeset
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765 if (image is null) OS.gtk_widget_hide (imageHandle); |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
58
diff
changeset
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766 OS.gtk_widget_show (labelHandle); |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
58
diff
changeset
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767 _setAlignment (style); |
| 37 | 768 } |
| 769 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
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diff
changeset
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770 override void showWidget () { |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
58
diff
changeset
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771 super.showWidget (); |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
58
diff
changeset
|
772 if (boxHandle !is null) OS.gtk_widget_show (boxHandle); |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
58
diff
changeset
|
773 if (labelHandle !is null) OS.gtk_widget_show (labelHandle); |
|
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
58
diff
changeset
|
774 if (arrowHandle !is null) OS.gtk_widget_show (arrowHandle); |
| 37 | 775 } |
| 776 | |
| 44 | 777 override int traversalCode (int key, GdkEventKey* event) { |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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changeset
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778 int code = super.traversalCode (key, event); |
| 71 | 779 if ((style & DWT.RADIO) !is 0) code |= DWT.TRAVERSE_ARROW_NEXT | DWT.TRAVERSE_ARROW_PREVIOUS; |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
58
diff
changeset
|
780 return code; |
| 37 | 781 } |
| 782 | |
| 783 } |