Mercurial > projects > dwt-linux
annotate dwt/widgets/Spinner.d @ 240:ce446666f5a2
Update to SWT 3.4M7
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Mon, 12 May 2008 19:13:01 +0200 |
| parents | 380bad9f6852 |
| children | 5a30aa9820f3 |
| rev | line source |
|---|---|
| 72 | 1 /******************************************************************************* |
| 63 | 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> | |
| 63 | 12 *******************************************************************************/ |
| 13 module dwt.widgets.Spinner; | |
| 14 | |
| 15 | |
| 16 import dwt.widgets.Composite; | |
| 17 import dwt.widgets.TypedListener; | |
| 18 import dwt.widgets.Event; | |
| 19 import dwt.widgets.Widget; | |
| 71 | 20 import dwt.DWT; |
| 63 | 21 import dwt.internal.gtk.OS; |
| 22 import dwt.graphics.Point; | |
| 23 import dwt.graphics.Rectangle; | |
| 24 import dwt.events.SelectionListener; | |
| 25 import dwt.events.SelectionEvent; | |
| 26 import dwt.events.ModifyListener; | |
| 27 import dwt.events.VerifyListener; | |
| 28 | |
| 29 import tango.stdc.stringz; | |
| 30 import tango.util.Convert; | |
|
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31 import dwt.dwthelper.utils; |
| 63 | 32 |
| 33 /** | |
| 34 * Instances of this class are selectable user interface | |
| 35 * objects that allow the user to enter and modify numeric | |
| 36 * values. | |
| 37 * <p> | |
| 38 * Note that although this class is a subclass of <code>Composite</code>, | |
| 39 * it does not make sense to add children to it, or set a layout on it. | |
| 40 * </p><p> | |
| 41 * <dl> | |
| 42 * <dt><b>Styles:</b></dt> | |
| 43 * <dd>READ_ONLY, WRAP</dd> | |
| 44 * <dt><b>Events:</b></dt> | |
| 45 * <dd>Selection, Modify, Verify</dd> | |
| 46 * </dl> | |
| 47 * </p><p> | |
| 48 * IMPORTANT: This class is <em>not</em> intended to be subclassed. | |
| 49 * </p> | |
| 50 * | |
| 51 * @since 3.1 | |
| 52 */ | |
| 53 public class Spinner : Composite { | |
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54 |
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55 alias Composite.computeSize computeSize; |
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56 alias Composite.createHandle createHandle; |
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57 alias Composite.setBackgroundColor setBackgroundColor; |
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58 alias Composite.setCursor setCursor; |
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59 alias Composite.translateTraversal translateTraversal; |
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60 |
| 63 | 61 static final int INNER_BORDER = 2; |
| 62 static final int MIN_ARROW_WIDTH = 6; | |
| 63 int lastEventTime = 0; | |
| 64 GdkEventKey* gdkEventKey; | |
| 65 int fixStart = -1, fixEnd = -1; | |
| 66 | |
| 240 | 67 /** |
| 68 * The maximum number of characters that can be entered | |
| 69 * into a text widget. | |
| 70 * <p> | |
| 71 * Note that this value is platform dependent, based upon | |
| 72 * the native widget implementation. | |
| 73 * </p> | |
| 74 */ | |
| 75 public const static int LIMIT = 0x7FFFFFFF; | |
| 76 | |
| 63 | 77 /** |
| 78 * Constructs a new instance of this class given its parent | |
| 79 * and a style value describing its behavior and appearance. | |
| 80 * <p> | |
| 81 * The style value is either one of the style constants defined in | |
| 71 | 82 * class <code>DWT</code> which is applicable to instances of this |
| 63 | 83 * class, or must be built by <em>bitwise OR</em>'ing together |
| 84 * (that is, using the <code>int</code> "|" operator) two or more | |
| 71 | 85 * of those <code>DWT</code> style constants. The class description |
| 63 | 86 * lists the style constants that are applicable to the class. |
| 87 * Style bits are also inherited from superclasses. | |
| 88 * </p> | |
| 89 * | |
| 90 * @param parent a composite control which will be the parent of the new instance (cannot be null) | |
| 91 * @param style the style of control to construct | |
| 92 * | |
| 93 * @exception IllegalArgumentException <ul> | |
| 94 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> | |
| 95 * </ul> | |
| 71 | 96 * @exception DWTException <ul> |
| 63 | 97 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| 98 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> | |
| 99 * </ul> | |
| 100 * | |
| 71 | 101 * @see DWT#READ_ONLY |
| 102 * @see DWT#WRAP | |
| 63 | 103 * @see Widget#checkSubclass |
| 104 * @see Widget#getStyle | |
| 105 */ | |
| 106 public this (Composite parent, int style) { | |
| 107 super (parent, checkStyle (style)); | |
| 108 } | |
| 109 | |
| 110 /** | |
| 111 * Adds the listener to the collection of listeners who will | |
| 112 * be notified when the receiver's text is modified, by sending | |
| 113 * it one of the messages defined in the <code>ModifyListener</code> | |
| 114 * interface. | |
| 115 * | |
| 116 * @param listener the listener which should be notified | |
| 117 * | |
| 118 * @exception IllegalArgumentException <ul> | |
| 119 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 120 * </ul> | |
| 71 | 121 * @exception DWTException <ul> |
| 63 | 122 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 123 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 124 * </ul> | |
| 125 * | |
| 126 * @see ModifyListener | |
| 127 * @see #removeModifyListener | |
| 128 */ | |
| 129 public void addModifyListener (ModifyListener listener) { | |
| 130 checkWidget (); | |
| 71 | 131 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
| 63 | 132 TypedListener typedListener = new TypedListener (listener); |
| 71 | 133 addListener (DWT.Modify, typedListener); |
| 63 | 134 } |
| 135 | |
| 136 /** | |
| 137 * Adds the listener to the collection of listeners who will | |
| 138 * be notified when the control is selected by the user, by sending | |
| 139 * it one of the messages defined in the <code>SelectionListener</code> | |
| 140 * interface. | |
| 141 * <p> | |
| 142 * <code>widgetSelected</code> is not called for texts. | |
| 143 * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed in a single-line text. | |
| 144 * </p> | |
| 145 * | |
| 146 * @param listener the listener which should be notified when the control is selected by the user | |
| 147 * | |
| 148 * @exception IllegalArgumentException <ul> | |
| 149 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 150 * </ul> | |
| 71 | 151 * @exception DWTException <ul> |
| 63 | 152 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 153 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 154 * </ul> | |
| 155 * | |
| 156 * @see SelectionListener | |
| 157 * @see #removeSelectionListener | |
| 158 * @see SelectionEvent | |
| 159 */ | |
| 160 public void addSelectionListener(SelectionListener listener) { | |
| 161 checkWidget (); | |
| 71 | 162 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
| 63 | 163 TypedListener typedListener = new TypedListener(listener); |
| 71 | 164 addListener(DWT.Selection,typedListener); |
| 165 addListener(DWT.DefaultSelection,typedListener); | |
| 63 | 166 } |
| 167 | |
| 168 /** | |
| 169 * Adds the listener to the collection of listeners who will | |
| 170 * be notified when the receiver's text is verified, by sending | |
| 171 * it one of the messages defined in the <code>VerifyListener</code> | |
| 172 * interface. | |
| 173 * | |
| 174 * @param listener the listener which should be notified | |
| 175 * | |
| 176 * @exception IllegalArgumentException <ul> | |
| 177 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 178 * </ul> | |
| 71 | 179 * @exception DWTException <ul> |
| 63 | 180 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 181 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 182 * </ul> | |
| 183 * | |
| 184 * @see VerifyListener | |
| 185 * @see #removeVerifyListener | |
| 186 */ | |
| 187 void addVerifyListener (VerifyListener listener) { | |
| 188 checkWidget(); | |
| 71 | 189 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
| 63 | 190 TypedListener typedListener = new TypedListener (listener); |
| 71 | 191 addListener (DWT.Verify, typedListener); |
| 63 | 192 } |
| 193 | |
| 194 static int checkStyle (int style) { | |
| 195 /* | |
| 196 * Even though it is legal to create this widget | |
| 197 * with scroll bars, they serve no useful purpose | |
| 198 * because they do not automatically scroll the | |
| 199 * widget's client area. The fix is to clear | |
| 71 | 200 * the DWT style. |
| 63 | 201 */ |
| 71 | 202 return style & ~(DWT.H_SCROLL | DWT.V_SCROLL); |
| 63 | 203 } |
| 204 | |
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205 protected override void checkSubclass () { |
| 71 | 206 if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); |
| 63 | 207 } |
| 208 | |
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209 public override Point computeSize (int wHint, int hHint, bool changed) { |
| 63 | 210 checkWidget (); |
| 71 | 211 if (wHint !is DWT.DEFAULT && wHint < 0) wHint = 0; |
| 212 if (hHint !is DWT.DEFAULT && hHint < 0) hHint = 0; | |
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213 int[1] w, h; |
| 63 | 214 OS.gtk_widget_realize (handle); |
| 215 auto layout = OS.gtk_entry_get_layout (cast(GtkEntry*)handle); | |
| 216 auto adjustment = OS.gtk_spin_button_get_adjustment (cast(GtkSpinButton*)handle); | |
| 217 int digits = OS.gtk_spin_button_get_digits (cast(GtkSpinButton*)handle); | |
| 218 for (int i = 0; i < digits; i++) adjustment.upper *= 10; | |
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219 String string = to!(String)( (cast(int) adjustment.upper) ); |
| 63 | 220 if (digits > 0) { |
| 221 //PROTING_TODO: Efficiency | |
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222 String buffer = string ~ getDecimalSeparator (); |
| 63 | 223 int count = digits - string.length; |
| 224 while (count >= 0) { | |
| 225 buffer ~= "0"; | |
| 226 count--; | |
| 227 } | |
| 228 string = buffer; | |
| 229 } | |
| 230 char [] buffer1 = string; | |
| 231 auto ptr = OS.pango_layout_get_text (layout); | |
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232 String buffer2 = fromStringz( ptr ).dup; |
| 63 | 233 OS.pango_layout_set_text (layout, buffer1.ptr, buffer1.length); |
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234 OS.pango_layout_get_size (layout, w.ptr, h.ptr); |
| 63 | 235 OS.pango_layout_set_text (layout, buffer2.ptr, buffer2.length); |
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236 int width = OS.PANGO_PIXELS (w [0]); |
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237 int height = OS.PANGO_PIXELS (h [0]); |
| 71 | 238 width = wHint is DWT.DEFAULT ? width : wHint; |
| 239 height = hHint is DWT.DEFAULT ? height : hHint; | |
| 63 | 240 Rectangle trim = computeTrim (0, 0, width, height); |
| 241 return new Point (trim.width, trim.height); | |
| 242 } | |
| 243 | |
| 244 override public Rectangle computeTrim (int x, int y, int width, int height) { | |
| 245 checkWidget (); | |
| 246 int xborder = 0, yborder = 0; | |
| 247 auto style = OS.gtk_widget_get_style (handle); | |
| 71 | 248 if ((this.style & DWT.BORDER) !is 0) { |
| 63 | 249 xborder += OS.gtk_style_get_xthickness (style); |
| 250 yborder += OS.gtk_style_get_ythickness (style); | |
| 251 } | |
| 252 xborder += INNER_BORDER; | |
| 253 yborder += INNER_BORDER; | |
| 254 int property; | |
| 255 OS.gtk_widget_style_get1 (handle, OS.interior_focus.ptr, &property); | |
| 256 if (property is 0) { | |
| 257 OS.gtk_widget_style_get1 (handle, OS.focus_line_width.ptr, &property); | |
| 258 xborder += property; | |
| 259 yborder += property; | |
| 260 } | |
| 261 auto fontDesc = OS.gtk_style_get_font_desc (style); | |
| 262 int fontSize = OS.pango_font_description_get_size (fontDesc); | |
| 263 int arrowSize = Math.max (OS.PANGO_PIXELS (fontSize), MIN_ARROW_WIDTH); | |
| 264 arrowSize = arrowSize - arrowSize % 2; | |
| 265 Rectangle trim = super.computeTrim (x, y, width, height); | |
| 266 trim.x -= xborder; | |
| 267 trim.y -= yborder; | |
| 268 trim.width += 2 * xborder; | |
| 269 trim.height += 2 * yborder; | |
| 270 trim.width += arrowSize + (2 * OS.gtk_style_get_xthickness (style)); | |
| 271 return new Rectangle (trim.x, trim.y, trim.width, trim.height); | |
| 272 } | |
| 273 | |
| 274 /** | |
| 275 * Copies the selected text. | |
| 276 * <p> | |
| 277 * The current selection is copied to the clipboard. | |
| 278 * </p> | |
| 279 * | |
| 71 | 280 * @exception DWTException <ul> |
| 63 | 281 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 282 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 283 * </ul> | |
| 284 */ | |
| 285 public void copy () { | |
| 286 checkWidget (); | |
| 287 OS.gtk_editable_copy_clipboard (cast(GtkEditable*)handle); | |
| 288 } | |
| 289 | |
| 290 override void createHandle (int index) { | |
| 291 state |= HANDLE | MENU; | |
| 292 fixedHandle = cast(GtkWidget*)OS.g_object_new (display.gtk_fixed_get_type (), null); | |
| 71 | 293 if (fixedHandle is null) error (DWT.ERROR_NO_HANDLES); |
| 63 | 294 OS.gtk_fixed_set_has_window (cast(GtkFixed*)fixedHandle, true); |
| 295 auto adjustment = OS.gtk_adjustment_new (0, 0, 100, 1, 10, 0); | |
| 71 | 296 if (adjustment is null) error (DWT.ERROR_NO_HANDLES); |
| 63 | 297 handle = cast(GtkWidget*)OS.gtk_spin_button_new (cast(GtkAdjustment*)adjustment, 1, 0); |
| 71 | 298 if (handle is null) error (DWT.ERROR_NO_HANDLES); |
| 63 | 299 OS.gtk_container_add (cast(GtkContainer*)fixedHandle, handle); |
| 71 | 300 OS.gtk_editable_set_editable (cast(GtkEditable*)handle, (style & DWT.READ_ONLY) is 0); |
| 301 OS.gtk_entry_set_has_frame (cast(GtkEntry*)handle, (style & DWT.BORDER) !is 0); | |
| 302 OS.gtk_spin_button_set_wrap (cast(GtkSpinButton*)handle, (style & DWT.WRAP) !is 0); | |
| 63 | 303 } |
| 304 | |
| 305 /** | |
| 306 * Cuts the selected text. | |
| 307 * <p> | |
| 308 * The current selection is first copied to the | |
| 309 * clipboard and then deleted from the widget. | |
| 310 * </p> | |
| 311 * | |
| 71 | 312 * @exception DWTException <ul> |
| 63 | 313 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 314 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 315 * </ul> | |
| 316 */ | |
| 317 public void cut () { | |
| 318 checkWidget (); | |
| 319 OS.gtk_editable_cut_clipboard (cast(GtkEditable*)handle); | |
| 320 } | |
| 321 | |
| 322 override void deregister () { | |
| 323 super.deregister (); | |
| 324 auto imContext = imContext (); | |
| 325 if (imContext !is null) display.removeWidget (cast(GtkWidget*)imContext); | |
| 326 } | |
| 327 | |
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328 override GdkDrawable* eventWindow () { |
| 63 | 329 return paintWindow (); |
| 330 } | |
| 331 | |
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332 override GtkWidget* enterExitHandle () { |
| 63 | 333 return fixedHandle; |
| 334 } | |
| 335 | |
| 336 override bool filterKey (int keyval, GdkEventKey* event) { | |
| 337 int time = OS.gdk_event_get_time (cast(GdkEvent*)event); | |
| 338 if (time !is lastEventTime) { | |
| 339 lastEventTime = time; | |
| 340 auto imContext = imContext (); | |
| 341 if (imContext !is null) { | |
| 342 return cast(bool)OS.gtk_im_context_filter_keypress (imContext, event); | |
| 343 } | |
| 344 } | |
| 345 gdkEventKey = event; | |
| 346 return false; | |
| 347 } | |
| 348 | |
| 349 void fixIM () { | |
| 350 /* | |
| 351 * The IM filter has to be called one time for each key press event. | |
| 352 * When the IM is open the key events are duplicated. The first event | |
| 71 | 353 * is filtered by DWT and the second event is filtered by GTK. In some |
| 63 | 354 * cases the GTK handler does not run (the widget is destroyed, the |
| 355 * application code consumes the event, etc), for these cases the IM | |
| 71 | 356 * filter has to be called by DWT. |
| 63 | 357 */ |
| 358 if (gdkEventKey !is null && gdkEventKey !is cast(GdkEventKey*)-1) { | |
| 359 auto imContext = imContext (); | |
| 360 if (imContext !is null) { | |
| 361 OS.gtk_im_context_filter_keypress (imContext, gdkEventKey); | |
| 362 gdkEventKey = cast(GdkEventKey*)-1; | |
| 363 return; | |
| 364 } | |
| 365 } | |
| 366 gdkEventKey = null; | |
| 367 } | |
| 368 | |
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369 override GdkColor* getBackgroundColor () { |
| 63 | 370 return getBaseColor (); |
| 371 } | |
| 372 | |
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373 public override int getBorderWidth () { |
| 63 | 374 checkWidget(); |
| 375 auto style = OS.gtk_widget_get_style (handle); | |
| 71 | 376 if ((this.style & DWT.BORDER) !is 0) { |
| 63 | 377 return OS.gtk_style_get_xthickness (style); |
| 378 } | |
| 379 return 0; | |
| 380 } | |
| 381 | |
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382 override GdkColor* getForegroundColor () { |
| 63 | 383 return getTextColor (); |
| 384 } | |
| 385 | |
| 386 /** | |
| 387 * Returns the amount that the receiver's value will be | |
| 388 * modified by when the up/down arrows are pressed. | |
| 389 * | |
| 390 * @return the increment | |
| 391 * | |
| 71 | 392 * @exception DWTException <ul> |
| 63 | 393 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 394 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 395 * </ul> | |
| 396 */ | |
| 397 public int getIncrement () { | |
| 398 checkWidget (); | |
| 399 auto adjustment = OS.gtk_spin_button_get_adjustment (cast(GtkSpinButton*)handle); | |
| 400 int digits = OS.gtk_spin_button_get_digits (cast(GtkSpinButton*)handle); | |
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401 auto value = adjustment.step_increment; |
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402 for (int i = 0; i < digits; i++) value *= 10; |
| 240 | 403 return cast(int) (value > 0 ? value + 0.5 : value - 0.5); |
| 63 | 404 } |
| 405 | |
| 406 /** | |
| 407 * Returns the maximum value which the receiver will allow. | |
| 408 * | |
| 409 * @return the maximum | |
| 410 * | |
| 71 | 411 * @exception DWTException <ul> |
| 63 | 412 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 413 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 414 * </ul> | |
| 415 */ | |
| 416 public int getMaximum () { | |
| 417 checkWidget (); | |
| 418 auto adjustment = OS.gtk_spin_button_get_adjustment (cast(GtkSpinButton*)handle); | |
| 419 int digits = OS.gtk_spin_button_get_digits (cast(GtkSpinButton*)handle); | |
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420 auto value = adjustment.upper; |
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421 for (int i = 0; i < digits; i++) value *= 10; |
| 240 | 422 return cast(int) (value > 0 ? value + 0.5 : value - 0.5); |
| 63 | 423 } |
| 424 | |
| 425 /** | |
| 426 * Returns the minimum value which the receiver will allow. | |
| 427 * | |
| 428 * @return the minimum | |
| 429 * | |
| 71 | 430 * @exception DWTException <ul> |
| 63 | 431 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 432 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 433 * </ul> | |
| 434 */ | |
| 435 public int getMinimum () { | |
| 436 checkWidget (); | |
| 437 auto adjustment = OS.gtk_spin_button_get_adjustment (cast(GtkSpinButton*)handle); | |
| 438 int digits = OS.gtk_spin_button_get_digits (cast(GtkSpinButton*)handle); | |
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439 auto value = adjustment.lower; |
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440 for (int i = 0; i < digits; i++) value *= 10; |
| 240 | 441 return cast(int) (value > 0 ? value + 0.5 : value - 0.5); |
| 63 | 442 } |
| 443 | |
| 444 /** | |
| 445 * Returns the amount that the receiver's position will be | |
| 446 * modified by when the page up/down keys are pressed. | |
| 447 * | |
| 448 * @return the page increment | |
| 449 * | |
| 71 | 450 * @exception DWTException <ul> |
| 63 | 451 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 452 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 453 * </ul> | |
| 454 */ | |
| 455 public int getPageIncrement () { | |
| 456 checkWidget (); | |
| 457 auto adjustment = OS.gtk_spin_button_get_adjustment (cast(GtkSpinButton*)handle); | |
| 458 int digits = OS.gtk_spin_button_get_digits (cast(GtkSpinButton*)handle); | |
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459 auto value = adjustment.page_increment; |
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460 for (int i = 0; i < digits; i++) value *= 10; |
| 240 | 461 return cast(int) (value > 0 ? value + 0.5 : value - 0.5); |
| 63 | 462 } |
| 463 | |
| 464 /** | |
| 465 * Returns the <em>selection</em>, which is the receiver's position. | |
| 466 * | |
| 467 * @return the selection | |
| 468 * | |
| 71 | 469 * @exception DWTException <ul> |
| 63 | 470 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 471 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 472 * </ul> | |
| 473 */ | |
| 474 public int getSelection () { | |
| 475 checkWidget (); | |
| 476 auto adjustment = OS.gtk_spin_button_get_adjustment (cast(GtkSpinButton*)handle); | |
| 477 int digits = OS.gtk_spin_button_get_digits (cast(GtkSpinButton*)handle); | |
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478 auto value = adjustment.value; |
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479 for (int i = 0; i < digits; i++) value *= 10; |
| 240 | 480 return cast(int) (value > 0 ? value + 0.5 : value - 0.5); |
| 481 } | |
| 482 | |
| 483 public String getText () { | |
| 484 checkWidget (); | |
| 485 auto str = OS.gtk_entry_get_text (handle); | |
| 486 return tango.stdc.stringz.fromStringz(str).dup; | |
| 487 } | |
| 488 | |
| 489 public int getTextLimit () { | |
| 490 checkWidget (); | |
| 491 int limit = OS.gtk_entry_get_max_length (handle); | |
| 492 return limit is 0 ? 0xFFFF : limit; | |
| 63 | 493 } |
| 494 | |
| 495 /** | |
| 496 * Returns the number of decimal places used by the receiver. | |
| 497 * | |
| 498 * @return the digits | |
| 499 * | |
| 71 | 500 * @exception DWTException <ul> |
| 63 | 501 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 502 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 503 * </ul> | |
| 504 */ | |
| 505 public int getDigits () { | |
| 506 checkWidget (); | |
| 507 return OS.gtk_spin_button_get_digits (cast(GtkSpinButton*)handle); | |
| 508 } | |
| 509 | |
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510 String getDecimalSeparator () { |
| 63 | 511 auto ptr = OS.localeconv_decimal_point (); |
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512 return fromStringz( ptr ).dup; |
| 63 | 513 } |
| 514 | |
| 515 override int /*long*/ gtk_activate (GtkWidget* widget) { | |
| 71 | 516 postEvent (DWT.DefaultSelection); |
| 63 | 517 return 0; |
| 518 } | |
| 519 | |
| 520 override int /*long*/ gtk_changed (GtkWidget* widget) { | |
| 521 auto str = OS.gtk_entry_get_text (cast(GtkEntry*)handle); | |
| 522 int length = tango.stdc.string.strlen (str); | |
| 523 if (length > 0) { | |
| 524 char* endptr; | |
| 525 double value = OS.g_strtod (str, &endptr); | |
| 526 if (endptr is str + length) { | |
| 527 auto adjustment = OS.gtk_spin_button_get_adjustment (cast(GtkSpinButton*)handle); | |
| 528 if (value !is adjustment.value && adjustment.lower <= value && value <= adjustment.upper) { | |
| 529 OS.gtk_spin_button_update (cast(GtkSpinButton*)handle); | |
| 530 } | |
| 531 } | |
| 532 } | |
| 533 | |
| 534 /* | |
| 535 * Feature in GTK. When the user types, GTK positions | |
| 536 * the caret after sending the changed signal. This | |
| 537 * means that application code that attempts to position | |
| 538 * the caret during a changed signal will fail. The fix | |
| 539 * is to post the modify event when the user is typing. | |
| 540 */ | |
| 541 bool keyPress = false; | |
| 542 auto eventPtr = OS.gtk_get_current_event (); | |
| 543 if (eventPtr !is null) { | |
| 544 GdkEventKey* gdkEvent = cast(GdkEventKey*)eventPtr; | |
| 545 switch (gdkEvent.type) { | |
| 546 case OS.GDK_KEY_PRESS: | |
| 547 keyPress = true; | |
| 548 break; | |
| 549 default: | |
| 550 } | |
| 551 OS.gdk_event_free (eventPtr); | |
| 552 } | |
| 553 if (keyPress) { | |
| 71 | 554 postEvent (DWT.Modify); |
| 63 | 555 } else { |
| 71 | 556 sendEvent (DWT.Modify); |
| 63 | 557 } |
| 558 return 0; | |
| 559 } | |
| 560 | |
| 561 int /*long*/ gtk_commit (GtkIMContext* imContext, char* text) { | |
| 562 if (text is null) return 0; | |
| 563 if (!OS.gtk_editable_get_editable (cast(GtkEditable*)handle)) return 0; | |
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564 char [] chars = fromStringz( text ).dup; |
| 63 | 565 if (chars.length is 0) return 0; |
| 71 | 566 char [] newChars = sendIMKeyEvent (DWT.KeyDown, null, chars); |
| 63 | 567 if (newChars is null) return 0; |
| 568 /* | |
| 569 * Feature in GTK. For a GtkEntry, during the insert-text signal, | |
| 570 * GTK allows the programmer to change only the caret location, | |
| 571 * not the selection. If the programmer changes the selection, | |
| 572 * the new selection is lost. The fix is to detect a selection | |
| 573 * change and set it after the insert-text signal has completed. | |
| 574 */ | |
| 575 fixStart = fixEnd = -1; | |
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576 OS.g_signal_handlers_block_matched (imContext, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCOMMIT); |
| 63 | 577 int id = OS.g_signal_lookup (OS.commit.ptr, OS.gtk_im_context_get_type ()); |
| 578 int mask = OS.G_SIGNAL_MATCH_DATA | OS.G_SIGNAL_MATCH_ID; | |
| 579 OS.g_signal_handlers_unblock_matched (imContext, mask, id, 0, null, null, cast(void*)handle); | |
| 580 if (newChars is chars) { | |
| 581 OS.g_signal_emit_by_name1 (imContext, OS.commit.ptr, cast(int)text); | |
| 582 } else { | |
| 583 OS.g_signal_emit_by_name1 (imContext, OS.commit.ptr, cast(int)toStringz(newChars)); | |
| 584 } | |
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585 OS.g_signal_handlers_unblock_matched (imContext, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCOMMIT); |
| 67 | 586 OS.g_signal_handlers_block_matched (imContext, mask, id, 0, null, null, cast(void*)handle); |
| 63 | 587 if (fixStart !is -1 && fixEnd !is -1) { |
| 588 OS.gtk_editable_set_position (cast(GtkEditable*)handle, fixStart); | |
| 589 OS.gtk_editable_select_region (cast(GtkEditable*)handle, fixStart, fixEnd); | |
| 590 } | |
| 591 fixStart = fixEnd = -1; | |
| 592 return 0; | |
| 593 } | |
| 594 | |
| 595 override int /*long*/ gtk_delete_text (GtkWidget* widget, int start_pos, int end_pos) { | |
| 71 | 596 if (!hooks (DWT.Verify) && !filters (DWT.Verify)) return 0; |
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597 String newText = verifyText ("", cast(int)/*64*/start_pos, cast(int)/*64*/end_pos); |
| 63 | 598 if (newText is null) { |
| 599 OS.g_signal_stop_emission_by_name (handle, OS.delete_text.ptr); | |
| 600 } else { | |
| 601 if (newText.length > 0) { | |
| 602 int pos; | |
| 603 pos = cast(int)/*64*/end_pos; | |
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604 OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); |
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605 OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udINSERT_TEXT); |
| 63 | 606 OS.gtk_editable_insert_text (cast(GtkEditable*)handle, newText.ptr, newText.length, &pos); |
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607 OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udINSERT_TEXT); |
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608 OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); |
| 63 | 609 OS.gtk_editable_set_position (cast(GtkEditable*)handle, pos); |
| 610 } | |
| 611 } | |
| 612 return 0; | |
| 613 } | |
| 614 | |
| 615 override int /*long*/ gtk_event_after (GtkWidget* widget, GdkEvent* gdkEvent) { | |
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616 if (cursor !is null) gtk_setCursor (cursor.handle); |
| 63 | 617 return super.gtk_event_after (widget, gdkEvent); |
| 618 } | |
| 619 | |
| 620 override int /*long*/ gtk_focus_out_event (GtkWidget* widget, GdkEventFocus* event) { | |
| 621 fixIM (); | |
| 622 return super.gtk_focus_out_event (widget, event); | |
| 623 } | |
| 624 | |
| 625 override int /*long*/ gtk_insert_text (GtkEditable* widget, char* new_text, int new_text_length, int position) { | |
| 71 | 626 // if (!hooks (DWT.Verify) && !filters (DWT.Verify)) return 0; |
| 63 | 627 if (new_text is null || new_text_length is 0) return 0; |
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628 String oldText = new_text[ 0 .. new_text_length ].dup; |
| 63 | 629 int pos; |
| 630 pos = position; | |
| 631 if (pos is -1) { | |
| 632 auto ptr = OS.gtk_entry_get_text (cast(GtkEntry*)handle); | |
| 633 pos = cast(int)/*64*/OS.g_utf8_strlen (ptr, -1); | |
| 634 } | |
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635 String newText = verifyText (oldText, pos, pos); |
| 63 | 636 if (newText !is oldText) { |
| 637 int newStart, newEnd; | |
| 638 OS.gtk_editable_get_selection_bounds (cast(GtkEditable*)handle, &newStart, &newEnd); | |
| 639 if (newText !is null) { | |
| 640 if (newStart !is newEnd) { | |
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641 OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udDELETE_TEXT); |
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642 OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); |
| 63 | 643 OS.gtk_editable_delete_selection (cast(GtkEditable*)handle); |
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644 OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udDELETE_TEXT); |
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645 OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); |
| 63 | 646 } |
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647 OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udINSERT_TEXT); |
| 63 | 648 OS.gtk_editable_insert_text (cast(GtkEditable*)handle, newText.ptr, newText.length, &pos); |
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649 OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udINSERT_TEXT); |
| 63 | 650 newStart = newEnd = pos; |
| 651 } | |
| 652 pos = newEnd; | |
| 653 if (newStart !is newEnd ) { | |
| 654 fixStart = newStart ; | |
| 655 fixEnd = newEnd ; | |
| 656 } | |
| 657 position = pos; | |
| 658 OS.g_signal_stop_emission_by_name (handle, OS.insert_text.ptr); | |
| 659 } | |
| 660 return 0; | |
| 661 } | |
| 662 | |
| 663 override int /*long*/ gtk_key_press_event (GtkWidget* widget, GdkEventKey* event) { | |
| 664 auto result = super.gtk_key_press_event (widget, event); | |
| 665 if (result !is 0) fixIM (); | |
| 666 if (gdkEventKey is cast(GdkEventKey*)-1) result = 1; | |
| 667 gdkEventKey = null; | |
| 668 return result; | |
| 669 } | |
| 670 | |
| 240 | 671 override int /*long*/ gtk_populate_popup (GtkWidget* widget, GtkWidget* menu) { |
| 672 if ((style & DWT.RIGHT_TO_LEFT) !is 0) { | |
| 673 OS.gtk_widget_set_direction (menu, OS.GTK_TEXT_DIR_RTL); | |
| 674 display.doSetDirectionProc( menu, OS.GTK_TEXT_DIR_RTL); | |
| 675 } | |
| 676 return 0; | |
| 677 } | |
| 678 | |
| 63 | 679 override int /*long*/ gtk_value_changed (int adjustment) { |
| 71 | 680 postEvent (DWT.Selection); |
| 63 | 681 return 0; |
| 682 } | |
| 683 | |
| 684 override void hookEvents () { | |
| 685 super.hookEvents(); | |
| 686 OS.g_signal_connect_closure (handle, OS.changed.ptr, display.closures [CHANGED], true); | |
| 687 OS.g_signal_connect_closure (handle, OS.insert_text.ptr, display.closures [INSERT_TEXT], false); | |
| 688 OS.g_signal_connect_closure (handle, OS.delete_text.ptr, display.closures [DELETE_TEXT], false); | |
| 689 OS.g_signal_connect_closure (handle, OS.value_changed.ptr, display.closures [VALUE_CHANGED], false); | |
| 690 OS.g_signal_connect_closure (handle, OS.activate.ptr, display.closures [ACTIVATE], false); | |
| 240 | 691 OS.g_signal_connect_closure (handle, OS.populate_popup.ptr, display.closures [POPULATE_POPUP], false); |
| 63 | 692 auto imContext = imContext (); |
| 693 if (imContext !is null) { | |
| 694 OS.g_signal_connect_closure (imContext, OS.commit.ptr, display.closures [COMMIT], false); | |
| 695 int id = OS.g_signal_lookup (OS.commit.ptr, OS.gtk_im_context_get_type ()); | |
| 696 int mask = OS.G_SIGNAL_MATCH_DATA | OS.G_SIGNAL_MATCH_ID; | |
| 67 | 697 OS.g_signal_handlers_block_matched (imContext, mask, id, 0, null, null, cast(void*)handle); |
| 63 | 698 } |
| 699 } | |
| 700 | |
| 701 GtkIMContext* imContext () { | |
| 702 return OS.GTK_ENTRY_IM_CONTEXT (cast(GtkEntry*)handle); | |
| 703 } | |
| 704 | |
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705 override GdkDrawable* paintWindow () { |
| 63 | 706 auto window = super.paintWindow (); |
| 707 auto children = OS.gdk_window_get_children (window); | |
| 708 if (children !is null) window = cast(GdkDrawable*)OS.g_list_data (children); | |
| 709 OS.g_list_free (children); | |
| 710 return window; | |
| 711 } | |
| 712 | |
| 713 /** | |
| 714 * Pastes text from clipboard. | |
| 715 * <p> | |
| 716 * The selected text is deleted from the widget | |
| 717 * and new text inserted from the clipboard. | |
| 718 * </p> | |
| 719 * | |
| 71 | 720 * @exception DWTException <ul> |
| 63 | 721 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 722 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 723 * </ul> | |
| 724 */ | |
| 725 public void paste () { | |
| 726 checkWidget (); | |
| 727 OS.gtk_editable_paste_clipboard (cast(GtkEditable*)handle); | |
| 728 } | |
| 729 | |
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730 override void register () { |
| 63 | 731 super.register (); |
| 732 auto imContext = imContext (); | |
| 733 if (imContext !is null) display.addWidget (cast(GtkWidget*)imContext, this); | |
| 734 } | |
| 735 | |
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736 override void releaseWidget () { |
| 63 | 737 super.releaseWidget (); |
| 738 fixIM (); | |
| 739 } | |
| 740 | |
| 741 /** | |
| 742 * Removes the listener from the collection of listeners who will | |
| 743 * be notified when the receiver's text is modified. | |
| 744 * | |
| 745 * @param listener the listener which should no longer be notified | |
| 746 * | |
| 747 * @exception IllegalArgumentException <ul> | |
| 748 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 749 * </ul> | |
| 71 | 750 * @exception DWTException <ul> |
| 63 | 751 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 752 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 753 * </ul> | |
| 754 * | |
| 755 * @see ModifyListener | |
| 756 * @see #addModifyListener | |
| 757 */ | |
| 758 public void removeModifyListener (ModifyListener listener) { | |
| 759 checkWidget (); | |
| 71 | 760 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
| 63 | 761 if (eventTable is null) return; |
| 71 | 762 eventTable.unhook (DWT.Modify, listener); |
| 63 | 763 } |
| 764 | |
| 765 /** | |
| 766 * Removes the listener from the collection of listeners who will | |
| 767 * be notified when the control is selected by the user. | |
| 768 * | |
| 769 * @param listener the listener which should no longer be notified | |
| 770 * | |
| 771 * @exception IllegalArgumentException <ul> | |
| 772 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 773 * </ul> | |
| 71 | 774 * @exception DWTException <ul> |
| 63 | 775 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 776 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 777 * </ul> | |
| 778 * | |
| 779 * @see SelectionListener | |
| 780 * @see #addSelectionListener | |
| 781 */ | |
| 782 public void removeSelectionListener(SelectionListener listener) { | |
| 783 checkWidget (); | |
| 71 | 784 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
| 63 | 785 if (eventTable is null) return; |
| 71 | 786 eventTable.unhook(DWT.Selection, listener); |
| 787 eventTable.unhook(DWT.DefaultSelection,listener); | |
| 63 | 788 } |
| 789 | |
| 790 /** | |
| 791 * Removes the listener from the collection of listeners who will | |
| 792 * be notified when the control is verified. | |
| 793 * | |
| 794 * @param listener the listener which should be notified | |
| 795 * | |
| 796 * @exception IllegalArgumentException <ul> | |
| 797 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 798 * </ul> | |
| 71 | 799 * @exception DWTException <ul> |
| 63 | 800 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 801 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 802 * </ul> | |
| 803 * | |
| 804 * @see VerifyListener | |
| 805 * @see #addVerifyListener | |
| 806 */ | |
| 807 void removeVerifyListener (VerifyListener listener) { | |
| 808 checkWidget (); | |
| 71 | 809 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
| 63 | 810 if (eventTable is null) return; |
| 71 | 811 eventTable.unhook (DWT.Verify, listener); |
| 63 | 812 } |
| 813 | |
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814 override void setBackgroundColor (GdkColor* color) { |
| 63 | 815 super.setBackgroundColor (color); |
| 816 OS.gtk_widget_modify_base (handle, 0, color); | |
| 817 } | |
| 818 | |
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819 override void gtk_setCursor (GdkCursor* cursor) { |
| 63 | 820 GdkCursor* defaultCursor; |
| 821 if (cursor is null) defaultCursor = OS.gdk_cursor_new (OS.GDK_XTERM); | |
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822 super.gtk_setCursor (cursor !is null ? cursor : defaultCursor); |
| 63 | 823 if (cursor is null) OS.gdk_cursor_destroy (defaultCursor); |
| 824 } | |
| 825 | |
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826 override void setFontDescription (PangoFontDescription* font) { |
| 63 | 827 super.setFontDescription (font); |
| 828 } | |
| 829 | |
| 830 /** | |
| 831 * Sets the amount that the receiver's value will be | |
| 832 * modified by when the up/down arrows are pressed to | |
| 833 * the argument, which must be at least one. | |
| 834 * | |
| 835 * @param value the new increment (must be greater than zero) | |
| 836 * | |
| 71 | 837 * @exception DWTException <ul> |
| 63 | 838 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 839 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 840 * </ul> | |
| 841 */ | |
| 842 public void setIncrement (int value) { | |
| 843 checkWidget (); | |
| 844 if (value < 1) return; | |
| 845 auto adjustment = OS.gtk_spin_button_get_adjustment (cast(GtkSpinButton*)handle); | |
| 846 double newValue = value; | |
| 847 int digits = OS.gtk_spin_button_get_digits (cast(GtkSpinButton*)handle); | |
| 848 for (int i = 0; i < digits; i++) newValue /= 10; | |
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849 OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udVALUE_CHANGED); |
| 63 | 850 OS.gtk_spin_button_set_increments (cast(GtkSpinButton*)handle, newValue, adjustment.page_increment); |
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851 OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udVALUE_CHANGED); |
| 63 | 852 } |
| 853 | |
| 854 /** | |
| 855 * Sets the maximum value that the receiver will allow. This new | |
| 856 * value will be ignored if it is not greater than the receiver's current | |
| 857 * minimum value. If the new maximum is applied then the receiver's | |
| 858 * selection value will be adjusted if necessary to fall within its new range. | |
| 859 * | |
| 860 * @param value the new maximum, which must be greater than the current minimum | |
| 861 * | |
| 71 | 862 * @exception DWTException <ul> |
| 63 | 863 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 864 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 865 * </ul> | |
| 866 */ | |
| 867 public void setMaximum (int value) { | |
| 868 checkWidget (); | |
| 869 auto adjustment = OS.gtk_spin_button_get_adjustment (cast(GtkSpinButton*)handle); | |
| 870 double newValue = value; | |
| 871 int digits = OS.gtk_spin_button_get_digits (cast(GtkSpinButton*)handle); | |
| 872 for (int i = 0; i < digits; i++) newValue /= 10; | |
| 873 if (newValue <= adjustment.lower) return; | |
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874 OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udVALUE_CHANGED); |
| 63 | 875 OS.gtk_spin_button_set_range (cast(GtkSpinButton*)handle, adjustment.lower, newValue); |
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876 OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udVALUE_CHANGED); |
| 63 | 877 } |
| 878 | |
| 879 /** | |
| 880 * Sets the minimum value that the receiver will allow. This new | |
| 881 * value will be ignored if it is negative or is not less than the receiver's | |
| 882 * current maximum value. If the new minimum is applied then the receiver's | |
| 883 * selection value will be adjusted if necessary to fall within its new range. | |
| 884 * | |
| 885 * @param value the new minimum, which must be nonnegative and less than the current maximum | |
| 886 * | |
| 71 | 887 * @exception DWTException <ul> |
| 63 | 888 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 889 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 890 * </ul> | |
| 891 */ | |
| 892 public void setMinimum (int value) { | |
| 893 checkWidget (); | |
| 894 auto adjustment = OS.gtk_spin_button_get_adjustment (cast(GtkSpinButton*)handle); | |
| 895 double newValue = value; | |
| 896 int digits = OS.gtk_spin_button_get_digits (cast(GtkSpinButton*)handle); | |
| 897 for (int i = 0; i < digits; i++) newValue /= 10; | |
| 898 if (newValue >= adjustment.upper) return; | |
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899 OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udVALUE_CHANGED); |
| 63 | 900 OS.gtk_spin_button_set_range (cast(GtkSpinButton*)handle, newValue, adjustment.upper); |
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901 OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udVALUE_CHANGED); |
| 63 | 902 } |
| 903 | |
| 904 /** | |
| 905 * Sets the amount that the receiver's position will be | |
| 906 * modified by when the page up/down keys are pressed | |
| 907 * to the argument, which must be at least one. | |
| 908 * | |
| 909 * @param value the page increment (must be greater than zero) | |
| 910 * | |
| 71 | 911 * @exception DWTException <ul> |
| 63 | 912 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 913 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 914 * </ul> | |
| 915 */ | |
| 916 public void setPageIncrement (int value) { | |
| 917 checkWidget (); | |
| 918 if (value < 1) return; | |
| 919 auto adjustment = OS.gtk_spin_button_get_adjustment (cast(GtkSpinButton*)handle); | |
| 920 double newValue = value; | |
| 921 int digits = OS.gtk_spin_button_get_digits (cast(GtkSpinButton*)handle); | |
| 922 for (int i = 0; i < digits; i++) newValue /= 10; | |
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923 OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udVALUE_CHANGED); |
| 63 | 924 OS.gtk_spin_button_set_increments (cast(GtkSpinButton*)handle, adjustment.step_increment, newValue); |
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925 OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udVALUE_CHANGED); |
| 63 | 926 } |
| 927 | |
| 928 /** | |
| 929 * Sets the <em>selection</em>, which is the receiver's | |
| 930 * position, to the argument. If the argument is not within | |
| 931 * the range specified by minimum and maximum, it will be | |
| 932 * adjusted to fall within this range. | |
| 933 * | |
| 934 * @param value the new selection (must be zero or greater) | |
| 935 * | |
| 71 | 936 * @exception DWTException <ul> |
| 63 | 937 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 938 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 939 * </ul> | |
| 940 */ | |
| 941 public void setSelection (int value) { | |
| 942 checkWidget (); | |
| 943 double newValue = value; | |
| 944 int digits = OS.gtk_spin_button_get_digits (cast(GtkSpinButton*)handle); | |
| 945 for (int i = 0; i < digits; i++) newValue /= 10; | |
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946 OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udVALUE_CHANGED); |
| 63 | 947 OS.gtk_spin_button_set_value (cast(GtkSpinButton*)handle, newValue); |
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948 OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udVALUE_CHANGED); |
| 63 | 949 } |
| 950 | |
| 240 | 951 public void setTextLimit (int limit) { |
| 952 checkWidget (); | |
| 953 if (limit is 0) error (DWT.ERROR_CANNOT_BE_ZERO); | |
| 954 OS.gtk_entry_set_max_length (handle, limit); | |
| 955 } | |
| 956 | |
| 63 | 957 /** |
| 958 * Sets the number of decimal places used by the receiver. | |
| 959 * <p> | |
| 960 * The digit setting is used to allow for floating point values in the receiver. | |
| 961 * For example, to set the selection to a floating point value of 1.37 call setDigits() with | |
| 962 * a value of 2 and setSelection() with a value of 137. Similarly, if getDigits() has a value | |
| 963 * of 2 and getSelection() returns 137 this should be interpreted as 1.37. This applies to all | |
| 964 * numeric APIs. | |
| 965 * </p> | |
| 966 * | |
| 967 * @param value the new digits (must be greater than or equal to zero) | |
| 968 * | |
| 969 * @exception IllegalArgumentException <ul> | |
| 970 * <li>ERROR_INVALID_ARGUMENT - if the value is less than zero</li> | |
| 971 * </ul> | |
| 71 | 972 * @exception DWTException <ul> |
| 63 | 973 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 974 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 975 * </ul> | |
| 976 */ | |
| 977 public void setDigits (int value) { | |
| 978 checkWidget (); | |
| 71 | 979 if (value < 0) error (DWT.ERROR_INVALID_ARGUMENT); |
| 63 | 980 int digits = OS.gtk_spin_button_get_digits (cast(GtkSpinButton*)handle); |
| 981 if (value is digits) return; | |
| 982 auto adjustment = OS.gtk_spin_button_get_adjustment (cast(GtkSpinButton*)handle); | |
| 983 int diff = Math.abs (value - digits); | |
| 984 int factor = 1; | |
| 985 for (int i = 0; i < diff; i++) factor *= 10; | |
| 986 if (digits > value) { | |
| 987 adjustment.value *= factor; | |
| 988 adjustment.upper *= factor; | |
| 989 adjustment.lower *= factor; | |
| 990 adjustment.step_increment *= factor; | |
| 991 adjustment.page_increment *= factor; | |
| 992 } else { | |
| 993 adjustment.value /= factor; | |
| 994 adjustment.upper /= factor; | |
| 995 adjustment.lower /= factor; | |
| 996 adjustment.step_increment /= factor; | |
| 997 adjustment.page_increment /= factor; | |
| 998 } | |
| 999 OS.gtk_spin_button_set_digits (cast(GtkSpinButton*)handle, value); | |
| 1000 } | |
| 1001 | |
| 1002 /** | |
| 1003 * Sets the receiver's selection, minimum value, maximum | |
| 1004 * value, digits, increment and page increment all at once. | |
| 1005 * <p> | |
| 1006 * Note: This is similar to setting the values individually | |
| 1007 * using the appropriate methods, but may be implemented in a | |
| 1008 * more efficient fashion on some platforms. | |
| 1009 * </p> | |
| 1010 * | |
| 1011 * @param selection the new selection value | |
| 1012 * @param minimum the new minimum value | |
| 1013 * @param maximum the new maximum value | |
| 1014 * @param digits the new digits value | |
| 1015 * @param increment the new increment value | |
| 1016 * @param pageIncrement the new pageIncrement value | |
| 1017 * | |
| 71 | 1018 * @exception DWTException <ul> |
| 63 | 1019 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| 1020 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1021 * </ul> | |
| 1022 * | |
| 1023 * @since 3.2 | |
| 1024 */ | |
| 1025 public void setValues (int selection, int minimum, int maximum, int digits, int increment, int pageIncrement) { | |
| 1026 checkWidget (); | |
| 1027 if (maximum <= minimum) return; | |
| 1028 if (digits < 0) return; | |
| 1029 if (increment < 1) return; | |
| 1030 if (pageIncrement < 1) return; | |
| 1031 selection = Math.min (Math.max (minimum, selection), maximum); | |
| 1032 double factor = 1; | |
| 1033 for (int i = 0; i < digits; i++) factor *= 10; | |
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1034 OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udVALUE_CHANGED); |
| 63 | 1035 OS.gtk_spin_button_set_range (cast(GtkSpinButton*)handle, minimum / factor, maximum / factor); |
| 1036 OS.gtk_spin_button_set_increments (cast(GtkSpinButton*)handle, increment / factor, pageIncrement / factor); | |
| 1037 OS.gtk_spin_button_set_value (cast(GtkSpinButton*)handle, selection / factor); | |
| 1038 OS.gtk_spin_button_set_digits (cast(GtkSpinButton*)handle, digits); | |
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1039 OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udVALUE_CHANGED); |
| 63 | 1040 } |
| 1041 | |
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1042 override bool translateTraversal (GdkEventKey* keyEvent) { |
| 63 | 1043 int key = keyEvent.keyval; |
| 1044 switch (key) { | |
| 1045 case OS.GDK_KP_Enter: | |
| 1046 case OS.GDK_Return: { | |
| 1047 auto imContext = imContext (); | |
| 1048 if (imContext !is null) { | |
| 1049 char* preeditString; | |
| 1050 OS.gtk_im_context_get_preedit_string (imContext, &preeditString, null, null); | |
| 1051 if (preeditString !is null) { | |
| 1052 int length = tango.stdc.string.strlen (preeditString); | |
| 1053 OS.g_free (preeditString); | |
| 1054 if (length !is 0) return false; | |
| 1055 } | |
| 1056 } | |
| 1057 default: | |
| 1058 } | |
| 1059 } | |
| 1060 return super.translateTraversal (keyEvent); | |
| 1061 } | |
| 1062 | |
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1063 String verifyText (String string, int start, int end) { |
| 63 | 1064 if (string.length is 0 && start is end) return null; |
| 1065 Event event = new Event (); | |
| 1066 event.text = string; | |
| 1067 event.start = start; | |
| 1068 event.end = end; | |
| 1069 auto eventPtr = OS.gtk_get_current_event (); | |
| 1070 if (eventPtr !is null) { | |
| 1071 GdkEventKey* gdkEvent = cast(GdkEventKey*)eventPtr; | |
| 1072 switch (gdkEvent.type) { | |
| 1073 case OS.GDK_KEY_PRESS: | |
| 1074 setKeyState (event, gdkEvent); | |
| 1075 break; | |
| 1076 default: | |
| 1077 } | |
| 1078 OS.gdk_event_free (eventPtr); | |
| 1079 } | |
| 1080 int index = 0; | |
| 1081 if (OS.gtk_spin_button_get_digits (cast(GtkSpinButton*)handle) > 0) { | |
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1082 String decimalSeparator = getDecimalSeparator (); |
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1083 index = string.indexOf( decimalSeparator ); |
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1084 if (index !is -1 ) { |
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1085 string = string.substring( 0, index ) ~ string.substring( index + 1 ); |
| 63 | 1086 } |
| 1087 index = 0; | |
| 1088 } | |
| 240 | 1089 if (string.length > 0) { |
| 1090 auto adjustment = OS.gtk_spin_button_get_adjustment (handle); | |
| 1091 if (adjustment.lower < 0 && string.charAt (0) is '-') index++; | |
| 1092 } | |
| 63 | 1093 while (index < string.length) { |
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1094 if (!CharacterIsDigit (string.charAt(index))) break; |
| 63 | 1095 index++; |
| 1096 } | |
| 1097 event.doit = index is string.length; | |
| 1098 /* | |
| 1099 * It is possible (but unlikely), that application | |
| 1100 * code could have disposed the widget in the verify | |
| 1101 * event. If this happens, answer null to cancel | |
| 1102 * the operation. | |
| 1103 */ | |
| 71 | 1104 sendEvent (DWT.Verify, event); |
| 63 | 1105 if (!event.doit || isDisposed ()) return null; |
| 1106 return event.text; | |
| 1107 } | |
| 1108 | |
| 1109 } |