Mercurial > projects > dwt-linux
annotate dwt/widgets/Button.d @ 255:5a30aa9820f3
removed tango.stdc.stringz imports and allow null for arrays and string arguments.
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 15 Jun 2008 22:32:20 +0200 |
| parents | 34409a2fc053 |
| children | c0d810de7093 |
| 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 |
| 60 | 29 import tango.io.Stdout; |
| 37 | 30 |
| 31 /** | |
| 32 * Instances of this class represent a selectable user interface object that | |
| 33 * issues notification when pressed and released. | |
| 34 * <dl> | |
| 35 * <dt><b>Styles:</b></dt> | |
| 36 * <dd>ARROW, CHECK, PUSH, RADIO, TOGGLE, FLAT</dd> | |
| 37 * <dd>UP, DOWN, LEFT, RIGHT, CENTER</dd> | |
| 38 * <dt><b>Events:</b></dt> | |
| 39 * <dd>Selection</dd> | |
| 40 * </dl> | |
| 41 * <p> | |
| 42 * Note: Only one of the styles ARROW, CHECK, PUSH, RADIO, and TOGGLE | |
| 43 * may be specified. | |
| 44 * </p><p> | |
| 45 * Note: Only one of the styles LEFT, RIGHT, and CENTER may be specified. | |
| 46 * </p><p> | |
| 47 * Note: Only one of the styles UP, DOWN, LEFT, and RIGHT may be specified | |
| 48 * when the ARROW style is specified. | |
| 49 * </p><p> | |
| 50 * IMPORTANT: This class is intended to be subclassed <em>only</em> | |
| 71 | 51 * within the DWT implementation. |
| 37 | 52 * </p> |
| 53 */ | |
| 44 | 54 public class Button : Control { |
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55 |
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56 alias Control.computeSize computeSize; |
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57 alias Control.mnemonicHit mnemonicHit; |
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58 alias Control.mnemonicMatch mnemonicMatch; |
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59 alias Control.setBackgroundColor setBackgroundColor; |
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60 alias Control.setForegroundColor setForegroundColor; |
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61 |
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62 GtkWidget* boxHandle, labelHandle, imageHandle, arrowHandle, groupHandle; |
| 240 | 63 bool selected, grayed; |
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64 ImageList imageList; |
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65 Image image; |
| 238 | 66 String text; |
| 37 | 67 |
| 68 /** | |
| 69 * Constructs a new instance of this class given its parent | |
| 70 * and a style value describing its behavior and appearance. | |
| 71 * <p> | |
| 72 * The style value is either one of the style constants defined in | |
| 71 | 73 * class <code>DWT</code> which is applicable to instances of this |
| 37 | 74 * class, or must be built by <em>bitwise OR</em>'ing together |
| 75 * (that is, using the <code>int</code> "|" operator) two or more | |
| 71 | 76 * of those <code>DWT</code> style constants. The class description |
| 37 | 77 * lists the style constants that are applicable to the class. |
| 78 * Style bits are also inherited from superclasses. | |
| 79 * </p> | |
| 80 * | |
| 81 * @param parent a composite control which will be the parent of the new instance (cannot be null) | |
| 82 * @param style the style of control to construct | |
| 83 * | |
| 84 * @exception IllegalArgumentException <ul> | |
| 85 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> | |
| 86 * </ul> | |
| 71 | 87 * @exception DWTException <ul> |
| 37 | 88 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| 89 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> | |
| 90 * </ul> | |
| 91 * | |
| 71 | 92 * @see DWT#ARROW |
| 93 * @see DWT#CHECK | |
| 94 * @see DWT#PUSH | |
| 95 * @see DWT#RADIO | |
| 96 * @see DWT#TOGGLE | |
| 97 * @see DWT#FLAT | |
| 98 * @see DWT#LEFT | |
| 99 * @see DWT#RIGHT | |
| 100 * @see DWT#CENTER | |
| 37 | 101 * @see Widget#checkSubclass |
| 102 * @see Widget#getStyle | |
| 103 */ | |
| 44 | 104 public this (Composite parent, int style) { |
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105 super (parent, checkStyle (style)); |
| 37 | 106 } |
| 107 | |
| 108 static int checkStyle (int style) { | |
| 71 | 109 style = checkBits (style, DWT.PUSH, DWT.ARROW, DWT.CHECK, DWT.RADIO, DWT.TOGGLE, 0); |
| 110 if ((style & (DWT.PUSH | DWT.TOGGLE)) !is 0) { | |
| 111 return checkBits (style, DWT.CENTER, DWT.LEFT, DWT.RIGHT, 0, 0, 0); | |
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112 } |
| 71 | 113 if ((style & (DWT.CHECK | DWT.RADIO)) !is 0) { |
| 114 return checkBits (style, DWT.LEFT, DWT.RIGHT, DWT.CENTER, 0, 0, 0); | |
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115 } |
| 71 | 116 if ((style & DWT.ARROW) !is 0) { |
| 117 style |= DWT.NO_FOCUS; | |
| 118 return checkBits (style, DWT.UP, DWT.DOWN, DWT.LEFT, DWT.RIGHT, 0, 0); | |
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119 } |
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120 return style; |
| 37 | 121 } |
| 122 | |
| 123 /** | |
| 124 * Adds the listener to the collection of listeners who will | |
| 125 * be notified when the control is selected by the user, by sending | |
| 126 * it one of the messages defined in the <code>SelectionListener</code> | |
| 127 * interface. | |
| 128 * <p> | |
| 129 * <code>widgetSelected</code> is called when the control is selected by the user. | |
| 130 * <code>widgetDefaultSelected</code> is not called. | |
| 131 * </p> | |
| 132 * | |
| 133 * @param listener the listener which should be notified | |
| 134 * | |
| 135 * @exception IllegalArgumentException <ul> | |
| 136 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 137 * </ul> | |
| 71 | 138 * @exception DWTException <ul> |
| 37 | 139 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 140 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 141 * </ul> | |
| 142 * | |
| 143 * @see SelectionListener | |
| 144 * @see #removeSelectionListener | |
| 145 * @see SelectionEvent | |
| 146 */ | |
| 147 public void addSelectionListener (SelectionListener listener) { | |
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148 checkWidget (); |
| 71 | 149 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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150 TypedListener typedListener = new TypedListener (listener); |
| 71 | 151 addListener (DWT.Selection,typedListener); |
| 152 addListener (DWT.DefaultSelection,typedListener); | |
| 37 | 153 } |
| 154 | |
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155 override public Point computeSize (int wHint, int hHint, bool changed) { |
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156 checkWidget (); |
| 71 | 157 if (wHint !is DWT.DEFAULT && wHint < 0) wHint = 0; |
| 158 if (hHint !is DWT.DEFAULT && hHint < 0) hHint = 0; | |
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159 /* |
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160 * Feature in GTK, GtkCheckButton and GtkRadioButton allocate |
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161 * only the minimum size necessary for its child. This causes the child |
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162 * alignment to fail. The fix is to set the child size to the size |
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163 * of the button. |
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164 */ |
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165 forceResize (); |
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166 int reqWidth = -1, reqHeight = -1; |
| 71 | 167 if ((style & (DWT.CHECK | DWT.RADIO)) !is 0) { |
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168 OS.gtk_widget_get_size_request (boxHandle, &reqWidth, &reqHeight); |
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169 OS.gtk_widget_set_size_request (boxHandle, -1, -1); |
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170 } |
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171 Point size = computeNativeSize (handle, wHint, hHint, changed); |
| 71 | 172 if ((style & (DWT.CHECK | DWT.RADIO)) !is 0) { |
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173 OS.gtk_widget_set_size_request (boxHandle, reqWidth, reqHeight); |
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174 } |
| 71 | 175 if (wHint !is DWT.DEFAULT || hHint !is DWT.DEFAULT) { |
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176 if ((OS.GTK_WIDGET_FLAGS (handle) & OS.GTK_CAN_DEFAULT) !is 0) { |
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177 GtkBorder border; |
| 44 | 178 GtkBorder* buffer; |
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179 OS.gtk_widget_style_get1 (handle, OS.default_border.ptr, cast(int*)&buffer ); |
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180 if (buffer !is null) { |
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181 border = *buffer; |
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182 } else { |
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183 /* Use the GTK+ default value of 1 for each. */ |
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184 border.left = border.right = border.top = border.bottom = 1; |
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185 } |
| 71 | 186 if (wHint !is DWT.DEFAULT) size.x += border.left + border.right; |
| 187 if (hHint !is DWT.DEFAULT) size.y += border.top + border.bottom; | |
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188 } |
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189 } |
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190 return size; |
| 37 | 191 } |
| 192 | |
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193 override void createHandle (int index) { |
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194 state |= HANDLE; |
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195 if ((style & (DWT.PUSH | DWT.TOGGLE)) is 0) state |= THEME_BACKGROUND; |
| 71 | 196 int bits = DWT.ARROW | DWT.TOGGLE | DWT.CHECK | DWT.RADIO | DWT.PUSH; |
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197 fixedHandle = cast(GtkWidget*)OS.g_object_new (display.gtk_fixed_get_type (), null); |
| 71 | 198 if (fixedHandle is null) error (DWT.ERROR_NO_HANDLES); |
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199 OS.gtk_fixed_set_has_window (cast(GtkFixed*)fixedHandle, true); |
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200 switch (style & bits) { |
| 71 | 201 case DWT.ARROW: |
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202 int arrow_type = OS.GTK_ARROW_UP; |
| 71 | 203 if ((style & DWT.UP) !is 0) arrow_type = OS.GTK_ARROW_UP; |
| 204 if ((style & DWT.DOWN) !is 0) arrow_type = OS.GTK_ARROW_DOWN; | |
| 205 if ((style & DWT.LEFT) !is 0) arrow_type = OS.GTK_ARROW_LEFT; | |
| 206 if ((style & DWT.RIGHT) !is 0) arrow_type = OS.GTK_ARROW_RIGHT; | |
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207 handle = OS.gtk_button_new (); |
| 71 | 208 if (handle is null) error (DWT.ERROR_NO_HANDLES); |
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209 arrowHandle = OS.gtk_arrow_new (arrow_type, OS.GTK_SHADOW_OUT); |
| 71 | 210 if (arrowHandle is null) error (DWT.ERROR_NO_HANDLES); |
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211 break; |
| 71 | 212 case DWT.TOGGLE: |
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213 handle = OS.gtk_toggle_button_new (); |
| 71 | 214 if (handle is null) error (DWT.ERROR_NO_HANDLES); |
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215 break; |
| 71 | 216 case DWT.CHECK: |
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217 handle = OS.gtk_check_button_new (); |
| 71 | 218 if (handle is null) error (DWT.ERROR_NO_HANDLES); |
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219 break; |
| 71 | 220 case DWT.RADIO: |
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221 /* |
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222 * Feature in GTK. In GTK, radio button must always be part of |
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223 * a radio button group. In a GTK radio group, one button is always |
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224 * selected. This means that it is not possible to have a single |
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225 * radio button that is unselected. This is necessary to allow |
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226 * applications to implement their own radio behavior or use radio |
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227 * buttons outside of radio groups. The fix is to create a hidden |
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228 * radio button for each radio button we create and add them |
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229 * to the same group. This allows the visible button to be |
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230 * unselected. |
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231 */ |
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232 groupHandle = cast(GtkWidget*)OS.gtk_radio_button_new (null); |
| 71 | 233 if (groupHandle is null) error (DWT.ERROR_NO_HANDLES); |
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234 OS.g_object_ref (groupHandle); |
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235 OS.gtk_object_sink (cast(GtkObject*)groupHandle); |
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236 handle = OS.gtk_radio_button_new ( OS.gtk_radio_button_get_group (cast(GtkRadioButton*)groupHandle)); |
| 71 | 237 if (handle is null) error (DWT.ERROR_NO_HANDLES); |
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238 break; |
| 71 | 239 case DWT.PUSH: |
|
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240 default: |
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241 handle = OS.gtk_button_new (); |
| 71 | 242 if (handle is null) error (DWT.ERROR_NO_HANDLES); |
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243 OS.GTK_WIDGET_SET_FLAGS(handle, OS.GTK_CAN_DEFAULT); |
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244 break; |
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245 } |
| 71 | 246 if ((style & DWT.ARROW) !is 0) { |
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247 OS.gtk_container_add (cast(GtkContainer*)handle, arrowHandle); |
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248 } else { |
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249 boxHandle = OS.gtk_hbox_new (false, 4); |
| 71 | 250 if (boxHandle is null) error (DWT.ERROR_NO_HANDLES); |
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251 labelHandle = OS.gtk_label_new_with_mnemonic (null); |
| 71 | 252 if (labelHandle is null) error (DWT.ERROR_NO_HANDLES); |
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253 imageHandle = OS.gtk_image_new (); |
| 71 | 254 if (imageHandle is null) error (DWT.ERROR_NO_HANDLES); |
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255 OS.gtk_container_add (cast(GtkContainer*)handle, boxHandle); |
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256 OS.gtk_container_add (cast(GtkContainer*)boxHandle, imageHandle); |
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257 OS.gtk_container_add (cast(GtkContainer*)boxHandle, labelHandle); |
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258 } |
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259 OS.gtk_container_add (cast(GtkContainer*)fixedHandle, handle); |
| 37 | 260 |
| 71 | 261 if ((style & DWT.ARROW) !is 0) return; |
| 262 _setAlignment (style & (DWT.LEFT | DWT.CENTER | DWT.RIGHT)); | |
| 37 | 263 } |
| 264 | |
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265 override void createWidget (int index) { |
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266 super.createWidget (index); |
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267 text = ""; |
| 37 | 268 } |
| 269 | |
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270 override void deregister () { |
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271 super.deregister (); |
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272 if (boxHandle !is null) display.removeWidget (boxHandle); |
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273 if (labelHandle !is null) display.removeWidget (labelHandle); |
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274 if (imageHandle !is null) display.removeWidget (imageHandle); |
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275 if (arrowHandle !is null) display.removeWidget (arrowHandle); |
| 37 | 276 } |
| 277 | |
| 44 | 278 override GtkWidget* fontHandle () { |
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279 if (labelHandle !is null) return labelHandle; |
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280 return super.fontHandle (); |
| 37 | 281 } |
| 282 | |
| 283 /** | |
| 284 * Returns a value which describes the position of the | |
| 285 * text or image in the receiver. The value will be one of | |
| 286 * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code> | |
| 287 * unless the receiver is an <code>ARROW</code> button, in | |
| 288 * which case, the alignment will indicate the direction of | |
| 289 * the arrow (one of <code>LEFT</code>, <code>RIGHT</code>, | |
| 290 * <code>UP</code> or <code>DOWN</code>). | |
| 291 * | |
| 292 * @return the alignment | |
| 293 * | |
| 71 | 294 * @exception DWTException <ul> |
| 37 | 295 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 296 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 297 * </ul> | |
| 298 */ | |
| 299 public int getAlignment () { | |
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300 checkWidget (); |
| 71 | 301 if ((style & DWT.ARROW) !is 0) { |
| 302 if ((style & DWT.UP) !is 0) return DWT.UP; | |
| 303 if ((style & DWT.DOWN) !is 0) return DWT.DOWN; | |
| 304 if ((style & DWT.LEFT) !is 0) return DWT.LEFT; | |
| 305 if ((style & DWT.RIGHT) !is 0) return DWT.RIGHT; | |
| 306 return DWT.UP; | |
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307 } |
| 71 | 308 if ((style & DWT.LEFT) !is 0) return DWT.LEFT; |
| 309 if ((style & DWT.CENTER) !is 0) return DWT.CENTER; | |
| 310 if ((style & DWT.RIGHT) !is 0) return DWT.RIGHT; | |
| 311 return DWT.LEFT; | |
| 37 | 312 } |
| 313 | |
| 240 | 314 public bool getGrayed () { |
| 315 checkWidget(); | |
| 316 if ((style & DWT.CHECK) is 0) return false; | |
| 317 return grayed; | |
| 318 } | |
| 319 | |
| 37 | 320 /** |
| 321 * Returns the receiver's image if it has one, or null | |
| 322 * if it does not. | |
| 323 * | |
| 324 * @return the receiver's image | |
| 325 * | |
| 71 | 326 * @exception DWTException <ul> |
| 37 | 327 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 328 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 329 * </ul> | |
| 330 */ | |
| 331 public Image getImage () { | |
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332 checkWidget (); |
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333 return image; |
| 37 | 334 } |
| 335 | |
| 238 | 336 override String getNameText () { |
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337 return getText (); |
| 37 | 338 } |
| 339 | |
| 340 /** | |
| 341 * Returns <code>true</code> if the receiver is selected, | |
| 342 * and false otherwise. | |
| 343 * <p> | |
| 344 * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, | |
| 345 * it is selected when it is checked. When it is of type <code>TOGGLE</code>, | |
| 346 * it is selected when it is pushed in. If the receiver is of any other type, | |
| 347 * this method returns false. | |
| 348 * | |
| 349 * @return the selection state | |
| 350 * | |
| 71 | 351 * @exception DWTException <ul> |
| 37 | 352 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 353 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 354 * </ul> | |
| 355 */ | |
| 44 | 356 public bool getSelection () { |
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357 checkWidget (); |
| 71 | 358 if ((style & (DWT.CHECK | DWT.RADIO | DWT.TOGGLE)) is 0) return false; |
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359 return cast(bool)OS.gtk_toggle_button_get_active (cast(GtkToggleButton*)handle); |
| 37 | 360 } |
| 361 | |
| 362 /** | |
| 363 * Returns the receiver's text, which will be an empty | |
| 364 * string if it has never been set or if the receiver is | |
| 365 * an <code>ARROW</code> button. | |
| 366 * | |
| 367 * @return the receiver's text | |
| 368 * | |
| 71 | 369 * @exception DWTException <ul> |
| 37 | 370 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 371 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 372 * </ul> | |
| 373 */ | |
| 238 | 374 public String getText () { |
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375 checkWidget(); |
| 71 | 376 if ((style & DWT.ARROW) !is 0) return ""; |
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377 return text; |
| 37 | 378 } |
| 379 | |
| 44 | 380 override int /*long*/ gtk_button_press_event (GtkWidget* widget, GdkEventButton* event) { |
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381 auto result = super.gtk_button_press_event (widget, event); |
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382 if (result !is 0) return result; |
| 71 | 383 if ((style & DWT.RADIO) !is 0) selected = getSelection (); |
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384 return result; |
| 37 | 385 } |
| 386 | |
| 44 | 387 override int /*long*/ gtk_clicked (GtkWidget* widget) { |
| 71 | 388 if ((style & DWT.RADIO) !is 0) { |
| 389 if ((parent.getStyle () & DWT.NO_RADIO_GROUP) !is 0) { | |
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390 setSelection (!selected); |
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391 } else { |
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392 selectRadio (); |
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393 } |
| 240 | 394 } else { |
| 395 if ((style & DWT.CHECK) !is 0) { | |
| 396 if (grayed) { | |
| 397 if (OS.gtk_toggle_button_get_active (handle)) { | |
| 398 OS.gtk_toggle_button_set_inconsistent (handle, true); | |
| 399 } else { | |
| 400 OS.gtk_toggle_button_set_inconsistent (handle, false); | |
| 401 } | |
| 402 } | |
| 403 } | |
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404 } |
| 71 | 405 postEvent (DWT.Selection); |
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406 return 0; |
| 37 | 407 } |
| 408 | |
| 44 | 409 override int /*long*/ gtk_focus_in_event (GtkWidget* widget, GdkEventFocus* event) { |
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410 auto result = super.gtk_focus_in_event (widget, event); |
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411 // widget could be disposed at this point |
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412 if (handle is null) return 0; |
| 71 | 413 if ((style & DWT.PUSH) !is 0 && OS.GTK_WIDGET_HAS_DEFAULT (handle)) { |
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414 Decorations menuShell = menuShell (); |
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415 menuShell.defaultButton = this; |
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416 } |
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417 return result; |
| 37 | 418 } |
| 419 | |
| 44 | 420 override int /*long*/ gtk_focus_out_event (GtkWidget* widget, GdkEventFocus* event) { |
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421 auto result = super.gtk_focus_out_event (widget, event); |
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422 // widget could be disposed at this point |
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423 if (handle is null) return 0; |
| 71 | 424 if ((style & DWT.PUSH) !is 0 && !OS.GTK_WIDGET_HAS_DEFAULT (handle)) { |
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425 Decorations menuShell = menuShell (); |
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426 if (menuShell.defaultButton is this) { |
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427 menuShell.defaultButton = null; |
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428 } |
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429 } |
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430 return result; |
| 37 | 431 } |
| 432 | |
| 44 | 433 override int /*long*/ gtk_key_press_event (GtkWidget* widget, GdkEventKey* event) { |
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434 auto result = super.gtk_key_press_event (widget, event); |
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435 if (result !is 0) return result; |
| 71 | 436 if ((style & DWT.RADIO) !is 0) selected = getSelection (); |
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437 return result; |
| 37 | 438 } |
| 439 | |
|
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440 override void hookEvents () { |
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441 super.hookEvents(); |
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442 OS.g_signal_connect_closure (handle, OS.clicked.ptr, display.closures [CLICKED], false); |
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443 if (labelHandle !is null) { |
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444 OS.g_signal_connect_closure_by_id (cast(void*)labelHandle, display.signalIds [MNEMONIC_ACTIVATE], 0, display.closures [MNEMONIC_ACTIVATE], false); |
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445 } |
| 37 | 446 } |
| 447 | |
|
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448 override bool isDescribedByLabel () { |
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449 return false; |
| 37 | 450 } |
| 451 | |
|
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452 override bool mnemonicHit (wchar key) { |
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453 if (labelHandle is null) return false; |
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454 bool result = super.mnemonicHit (labelHandle, key); |
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455 if (result) setFocus (); |
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456 return result; |
| 37 | 457 } |
| 458 | |
|
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459 override bool mnemonicMatch (wchar key) { |
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460 if (labelHandle is null) return false; |
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461 return mnemonicMatch (labelHandle, key); |
| 37 | 462 } |
| 463 | |
|
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464 override void register () { |
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465 super.register (); |
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466 if (boxHandle !is null) display.addWidget (boxHandle, this); |
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467 if (labelHandle !is null) display.addWidget (labelHandle, this); |
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468 if (imageHandle !is null) display.addWidget (imageHandle, this); |
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469 if (arrowHandle !is null) display.addWidget (arrowHandle, this); |
| 37 | 470 } |
| 471 | |
|
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472 override void releaseHandle () { |
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473 super.releaseHandle (); |
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474 boxHandle = imageHandle = labelHandle = arrowHandle = null; |
| 37 | 475 } |
| 476 | |
|
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477 override void releaseWidget () { |
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478 super.releaseWidget (); |
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479 if (groupHandle !is null) OS.g_object_unref (groupHandle); |
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480 groupHandle = null; |
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481 if (imageList !is null) imageList.dispose (); |
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482 imageList = null; |
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483 image = null; |
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484 text = null; |
| 37 | 485 } |
| 486 | |
| 487 /** | |
| 488 * Removes the listener from the collection of listeners who will | |
| 489 * be notified when the control is selected by the user. | |
| 490 * | |
| 491 * @param listener the listener which should no longer be notified | |
| 492 * | |
| 493 * @exception IllegalArgumentException <ul> | |
| 494 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 495 * </ul> | |
| 71 | 496 * @exception DWTException <ul> |
| 37 | 497 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 498 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 499 * </ul> | |
| 500 * | |
| 501 * @see SelectionListener | |
| 502 * @see #addSelectionListener | |
| 503 */ | |
| 504 public void removeSelectionListener (SelectionListener listener) { | |
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505 checkWidget(); |
| 71 | 506 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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507 if (eventTable is null) return; |
| 71 | 508 eventTable.unhook (DWT.Selection, listener); |
| 509 eventTable.unhook (DWT.DefaultSelection,listener); | |
| 37 | 510 } |
| 511 | |
|
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512 override void resizeHandle (int width, int height) { |
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513 super.resizeHandle (width, height); |
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514 /* |
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515 * Feature in GTK, GtkCheckButton and GtkRadioButton allocate |
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516 * only the minimum size necessary for its child. This causes the child |
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517 * alignment to fail. The fix is to set the child size to the size |
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518 * of the button. |
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519 */ |
| 71 | 520 if ((style & (DWT.CHECK | DWT.RADIO)) !is 0) { |
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521 OS.gtk_widget_set_size_request (boxHandle, width, -1); |
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522 } |
| 37 | 523 } |
| 524 | |
| 525 void selectRadio () { | |
|
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526 /* |
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527 * This code is intentionally commented. When two groups |
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528 * of radio buttons with the same parent are separated by |
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529 * another control, the correct behavior should be that |
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530 * the two groups act independently. This is consistent |
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531 * with radio tool and menu items. The commented code |
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532 * implements this behavior. |
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533 */ |
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534 // int index = 0; |
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535 // Control [] children = parent._getChildren (); |
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536 // while (index < children.length && children [index] !is this) index++; |
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537 // int i = index - 1; |
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538 // while (i >= 0 && children [i].setRadioSelection (false)) --i; |
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539 // int j = index + 1; |
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540 // while (j < children.length && children [j].setRadioSelection (false)) j++; |
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541 // setSelection (true); |
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542 Control [] children = parent._getChildren (); |
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543 for (int i=0; i<children.length; i++) { |
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544 Control child = children [i]; |
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545 if (this !is child) child.setRadioSelection (false); |
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546 } |
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547 setSelection (true); |
| 37 | 548 } |
| 549 | |
| 550 /** | |
| 551 * Controls how text, images and arrows will be displayed | |
| 552 * in the receiver. The argument should be one of | |
| 553 * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code> | |
| 554 * unless the receiver is an <code>ARROW</code> button, in | |
| 555 * which case, the argument indicates the direction of | |
| 556 * the arrow (one of <code>LEFT</code>, <code>RIGHT</code>, | |
| 557 * <code>UP</code> or <code>DOWN</code>). | |
| 558 * | |
| 559 * @param alignment the new alignment | |
| 560 * | |
| 71 | 561 * @exception DWTException <ul> |
| 37 | 562 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 563 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 564 * </ul> | |
| 565 */ | |
| 566 public void setAlignment (int alignment) { | |
|
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567 checkWidget (); |
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568 _setAlignment (alignment); |
| 37 | 569 } |
| 570 | |
| 571 void _setAlignment (int alignment) { | |
| 71 | 572 if ((style & DWT.ARROW) !is 0) { |
| 573 if ((style & (DWT.UP | DWT.DOWN | DWT.LEFT | DWT.RIGHT)) is 0) return; | |
| 574 style &= ~(DWT.UP | DWT.DOWN | DWT.LEFT | DWT.RIGHT); | |
| 575 style |= alignment & (DWT.UP | DWT.DOWN | DWT.LEFT | DWT.RIGHT); | |
|
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576 int arrow_type = OS.GTK_ARROW_UP; |
| 71 | 577 bool isRTL = (style & DWT.RIGHT_TO_LEFT) !is 0; |
|
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578 switch (alignment) { |
| 71 | 579 case DWT.UP: arrow_type = OS.GTK_ARROW_UP; break; |
| 580 case DWT.DOWN: arrow_type = OS.GTK_ARROW_DOWN; break; | |
| 581 case DWT.LEFT: arrow_type = isRTL ? OS.GTK_ARROW_RIGHT : OS.GTK_ARROW_LEFT; break; | |
| 582 case DWT.RIGHT: arrow_type = isRTL ? OS.GTK_ARROW_LEFT : OS.GTK_ARROW_RIGHT; break; | |
|
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583 default: |
|
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584 } |
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585 OS.gtk_arrow_set (cast(GtkArrow*)arrowHandle, arrow_type, OS.GTK_SHADOW_OUT); |
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586 return; |
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587 } |
| 71 | 588 if ((alignment & (DWT.LEFT | DWT.RIGHT | DWT.CENTER)) is 0) return; |
| 589 style &= ~(DWT.LEFT | DWT.RIGHT | DWT.CENTER); | |
| 590 style |= alignment & (DWT.LEFT | DWT.RIGHT | DWT.CENTER); | |
|
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591 /* Alignment not honoured when image and text are visible */ |
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592 bool bothVisible = OS.GTK_WIDGET_VISIBLE (labelHandle) && OS.GTK_WIDGET_VISIBLE (imageHandle); |
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593 if (bothVisible) { |
| 71 | 594 if ((style & (DWT.RADIO | DWT.CHECK)) !is 0) alignment = DWT.LEFT; |
| 595 if ((style & (DWT.PUSH | DWT.TOGGLE)) !is 0) alignment = DWT.CENTER; | |
|
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596 } |
| 71 | 597 if ((alignment & DWT.LEFT) !is 0) { |
|
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598 if (bothVisible) { |
|
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599 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, labelHandle, false, false, 0, OS.GTK_PACK_START); |
|
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600 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, imageHandle, false, false, 0, OS.GTK_PACK_START); |
|
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601 } |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
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602 OS.gtk_misc_set_alignment (cast(GtkMisc*)labelHandle, 0.0f, 0.5f); |
|
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603 OS.gtk_label_set_justify (cast(GtkLabel*)labelHandle, OS.GTK_JUSTIFY_LEFT); |
|
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604 OS.gtk_misc_set_alignment (cast(GtkMisc*)imageHandle, 0.0f, 0.5f); |
|
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605 return; |
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606 } |
| 71 | 607 if ((alignment & DWT.CENTER) !is 0) { |
|
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608 if (bothVisible) { |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
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609 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, labelHandle, true, true, 0, OS.GTK_PACK_END); |
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610 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, imageHandle, true, true, 0, OS.GTK_PACK_START); |
|
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611 OS.gtk_misc_set_alignment (cast(GtkMisc*)labelHandle, 0f, 0.5f); |
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612 OS.gtk_misc_set_alignment (cast(GtkMisc*)imageHandle, 1f, 0.5f); |
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613 } else { |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
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614 OS.gtk_misc_set_alignment (cast(GtkMisc*)labelHandle, 0.5f, 0.5f); |
|
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615 OS.gtk_label_set_justify (cast(GtkLabel*)labelHandle, OS.GTK_JUSTIFY_CENTER); |
|
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616 OS.gtk_misc_set_alignment (cast(GtkMisc*)imageHandle, 0.5f, 0.5f); |
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617 } |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
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618 return; |
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619 } |
| 71 | 620 if ((alignment & DWT.RIGHT) !is 0) { |
|
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621 if (bothVisible) { |
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622 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, labelHandle, false, false, 0, OS.GTK_PACK_END); |
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623 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, imageHandle, false, false, 0, OS.GTK_PACK_END); |
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624 } |
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625 OS.gtk_misc_set_alignment (cast(GtkMisc*)labelHandle, 1.0f, 0.5f); |
|
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626 OS.gtk_label_set_justify (cast(GtkLabel*)labelHandle, OS.GTK_JUSTIFY_RIGHT); |
|
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627 OS.gtk_misc_set_alignment (cast(GtkMisc*)imageHandle, 1.0f, 0.5f); |
|
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628 return; |
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629 } |
| 37 | 630 } |
| 631 | |
| 44 | 632 override void setBackgroundColor (GdkColor* color) { |
|
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633 super.setBackgroundColor (color); |
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634 setBackgroundColor(fixedHandle, color); |
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635 if (labelHandle !is null) setBackgroundColor(labelHandle, color); |
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636 if (imageHandle !is null) setBackgroundColor(imageHandle, color); |
| 37 | 637 } |
| 638 | |
|
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639 override void setFontDescription (PangoFontDescription* font) { |
|
59
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640 super.setFontDescription (font); |
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641 if (labelHandle !is null) OS.gtk_widget_modify_font (labelHandle, font); |
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642 if (imageHandle !is null) OS.gtk_widget_modify_font (imageHandle, font); |
| 37 | 643 } |
| 644 | |
|
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645 override bool setRadioSelection (bool value) { |
| 71 | 646 if ((style & DWT.RADIO) is 0) return false; |
|
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647 if (getSelection () !is value) { |
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648 setSelection (value); |
| 71 | 649 postEvent (DWT.Selection); |
|
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650 } |
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651 return true; |
| 37 | 652 } |
| 653 | |
| 44 | 654 override void setForegroundColor (GdkColor* color) { |
|
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655 super.setForegroundColor (color); |
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656 setForegroundColor (fixedHandle, color); |
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657 if (labelHandle !is null) setForegroundColor (labelHandle, color); |
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658 if (imageHandle !is null) setForegroundColor (imageHandle, color); |
| 37 | 659 } |
| 660 | |
| 240 | 661 public void setGrayed (bool grayed) { |
| 662 checkWidget(); | |
| 663 if ((style & DWT.CHECK) is 0) return; | |
| 664 this.grayed = grayed; | |
| 665 if (grayed && OS.gtk_toggle_button_get_active (handle)) { | |
| 666 OS.gtk_toggle_button_set_inconsistent (handle, true); | |
| 667 } else { | |
| 668 OS.gtk_toggle_button_set_inconsistent (handle, false); | |
| 669 } | |
| 670 } | |
| 671 | |
| 37 | 672 /** |
| 673 * Sets the receiver's image to the argument, which may be | |
| 674 * <code>null</code> indicating that no image should be displayed. | |
| 675 * <p> | |
| 676 * Note that a Button can display an image and text simultaneously | |
| 677 * on Windows (starting with XP), GTK+ and OSX. On other platforms, | |
| 678 * a Button that has an image and text set into it will display the | |
| 679 * image or text that was set most recently. | |
| 680 * </p> | |
| 681 * @param image the image to display on the receiver (may be <code>null</code>) | |
| 682 * | |
| 683 * @exception IllegalArgumentException <ul> | |
| 684 * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> | |
| 685 * </ul> | |
| 71 | 686 * @exception DWTException <ul> |
| 37 | 687 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 688 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 689 * </ul> | |
| 690 */ | |
| 691 public void setImage (Image image) { | |
|
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692 checkWidget (); |
| 71 | 693 if ((style & DWT.ARROW) !is 0) return; |
|
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694 if (imageList !is null) imageList.dispose (); |
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695 imageList = null; |
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696 if (image !is null) { |
| 71 | 697 if (image.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT); |
|
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698 imageList = new ImageList (); |
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699 int imageIndex = imageList.add (image); |
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700 auto pixbuf = imageList.getPixbuf (imageIndex); |
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701 OS.gtk_image_set_from_pixbuf (cast(GtkImage*)imageHandle, pixbuf); |
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702 if (text.length is 0) OS.gtk_widget_hide (labelHandle); |
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703 OS.gtk_widget_show (imageHandle); |
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704 } else { |
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705 OS.gtk_image_set_from_pixbuf (cast(GtkImage*)imageHandle, null); |
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706 OS.gtk_widget_show (labelHandle); |
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707 OS.gtk_widget_hide (imageHandle); |
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708 } |
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709 this.image = image; |
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710 _setAlignment (style); |
| 37 | 711 } |
| 712 | |
|
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|
713 override void setOrientation () { |
|
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714 super.setOrientation (); |
| 71 | 715 if ((style & DWT.RIGHT_TO_LEFT) !is 0) { |
| 240 | 716 if (boxHandle !is null) OS.gtk_widget_set_direction (boxHandle, OS.GTK_TEXT_DIR_RTL); |
|
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717 if (labelHandle !is null) OS.gtk_widget_set_direction (labelHandle, OS.GTK_TEXT_DIR_RTL); |
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718 if (imageHandle !is null) OS.gtk_widget_set_direction (imageHandle, OS.GTK_TEXT_DIR_RTL); |
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719 if (arrowHandle !is null) { |
| 71 | 720 switch (style & (DWT.LEFT | DWT.RIGHT)) { |
| 721 case DWT.LEFT: OS.gtk_arrow_set (cast(GtkArrow*)arrowHandle, OS.GTK_ARROW_RIGHT, OS.GTK_SHADOW_OUT); break; | |
| 722 case DWT.RIGHT: OS.gtk_arrow_set (cast(GtkArrow*)arrowHandle, OS.GTK_ARROW_LEFT, OS.GTK_SHADOW_OUT); break; | |
|
55
93981635e709
Checked and inserted missing default switch cases.
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|
723 default: |
|
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724 } |
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725 } |
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726 } |
| 37 | 727 } |
| 728 | |
| 729 /** | |
| 730 * Sets the selection state of the receiver, if it is of type <code>CHECK</code>, | |
| 731 * <code>RADIO</code>, or <code>TOGGLE</code>. | |
| 732 * | |
| 733 * <p> | |
| 734 * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, | |
| 735 * it is selected when it is checked. When it is of type <code>TOGGLE</code>, | |
| 736 * it is selected when it is pushed in. | |
| 737 * | |
| 738 * @param selected the new selection state | |
| 739 * | |
| 71 | 740 * @exception DWTException <ul> |
| 37 | 741 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 742 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 743 * </ul> | |
| 744 */ | |
| 44 | 745 public void setSelection (bool selected) { |
|
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746 checkWidget(); |
| 71 | 747 if ((style & (DWT.CHECK | DWT.RADIO | DWT.TOGGLE)) is 0) return; |
|
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|
748 OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCLICKED); |
|
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749 OS.gtk_toggle_button_set_active (cast(GtkToggleButton*)handle, selected); |
| 240 | 750 if ((style & DWT.CHECK) !is 0) { |
| 751 if (selected && grayed) { | |
| 752 OS.gtk_toggle_button_set_inconsistent (handle, true); | |
| 753 } else { | |
| 754 OS.gtk_toggle_button_set_inconsistent (handle, false); | |
| 755 } | |
| 756 } | |
| 71 | 757 if ((style & DWT.RADIO) !is 0) OS.gtk_toggle_button_set_active (cast(GtkToggleButton*)groupHandle, !selected); |
|
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758 OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCLICKED); |
| 37 | 759 } |
| 760 | |
| 761 /** | |
| 762 * Sets the receiver's text. | |
| 763 * <p> | |
| 764 * This method sets the button label. The label may include | |
| 765 * the mnemonic character but must not contain line delimiters. | |
| 766 * </p> | |
| 767 * <p> | |
| 768 * Mnemonics are indicated by an '&' that causes the next | |
| 769 * character to be the mnemonic. When the user presses a | |
| 770 * key sequence that matches the mnemonic, a selection | |
| 771 * event occurs. On most platforms, the mnemonic appears | |
| 772 * underlined but may be emphasized in a platform specific | |
| 773 * manner. The mnemonic indicator character '&' can be | |
| 774 * escaped by doubling it in the string, causing a single | |
| 775 * '&' to be displayed. | |
| 776 * </p><p> | |
| 777 * Note that a Button can display an image and text simultaneously | |
| 778 * on Windows (starting with XP), GTK+ and OSX. On other platforms, | |
| 779 * a Button that has an image and text set into it will display the | |
| 780 * image or text that was set most recently. | |
| 781 * </p> | |
| 782 * @param string the new text | |
| 783 * | |
| 71 | 784 * @exception DWTException <ul> |
| 37 | 785 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 786 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 787 * </ul> | |
| 788 */ | |
| 238 | 789 public void setText (String string) { |
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790 checkWidget (); |
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791 // DWT extension: allow null for zero length string |
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792 //if (string is null) error (DWT.ERROR_NULL_ARGUMENT); |
| 71 | 793 if ((style & DWT.ARROW) !is 0) return; |
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794 text = string; |
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795 char [] chars = fixMnemonic (string); |
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Fix call OS.gtk_label_set_text_with_mnemonic with valid ptr, even for zero length strings.
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796 OS.gtk_label_set_text_with_mnemonic (cast(GtkLabel*)labelHandle, chars.toStringzValidPtr() ); |
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797 if (image is null) OS.gtk_widget_hide (imageHandle); |
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798 OS.gtk_widget_show (labelHandle); |
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799 _setAlignment (style); |
| 37 | 800 } |
| 801 | |
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802 override void showWidget () { |
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803 super.showWidget (); |
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804 if (boxHandle !is null) OS.gtk_widget_show (boxHandle); |
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805 if (labelHandle !is null) OS.gtk_widget_show (labelHandle); |
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806 if (arrowHandle !is null) OS.gtk_widget_show (arrowHandle); |
| 37 | 807 } |
| 808 | |
| 44 | 809 override int traversalCode (int key, GdkEventKey* event) { |
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810 int code = super.traversalCode (key, event); |
| 240 | 811 if ((style & DWT.ARROW) !is 0) code &= ~(DWT.TRAVERSE_TAB_NEXT | DWT.TRAVERSE_TAB_PREVIOUS); |
| 71 | 812 if ((style & DWT.RADIO) !is 0) code |= DWT.TRAVERSE_ARROW_NEXT | DWT.TRAVERSE_ARROW_PREVIOUS; |
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813 return code; |
| 37 | 814 } |
| 815 | |
| 816 } |