Mercurial > projects > dwt-addons
annotate dwtx/jface/dialogs/ControlEnableState.d @ 104:04b47443bb01
Reworked the collection uses to make use of a wrapper collection that is compatible to the Java Collections.
These new wrappers now use the tango.util.containers instead of the tango.util.collections.
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Thu, 07 Aug 2008 15:01:33 +0200 |
| parents | 7615869f89e6 |
| children |
| rev | line source |
|---|---|
| 18 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2006 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwtx.jface.dialogs.ControlEnableState; | |
| 14 | |
| 15 | |
| 16 import dwt.widgets.Composite; | |
| 17 import dwt.widgets.Control; | |
| 18 | |
| 19 import dwt.dwthelper.utils; | |
|
104
04b47443bb01
Reworked the collection uses to make use of a wrapper collection that is compatible to the Java Collections.
Frank Benoit <benoit@tionex.de>
parents:
18
diff
changeset
|
20 import dwtx.dwtxhelper.Collection; |
| 18 | 21 |
| 22 /** | |
| 23 * Helper class to save the enable/disable state of a control including all its | |
| 24 * descendent controls. | |
| 25 */ | |
| 26 public class ControlEnableState { | |
| 27 /** | |
| 28 * List of exception controls (element type: <code>Control</code>); | |
| 29 * <code>null</code> if none. | |
| 30 */ | |
|
104
04b47443bb01
Reworked the collection uses to make use of a wrapper collection that is compatible to the Java Collections.
Frank Benoit <benoit@tionex.de>
parents:
18
diff
changeset
|
31 private List exceptions = null; |
| 18 | 32 |
| 33 /** | |
| 34 * List of saved states (element type: <code>ItemState</code>). | |
| 35 */ | |
|
104
04b47443bb01
Reworked the collection uses to make use of a wrapper collection that is compatible to the Java Collections.
Frank Benoit <benoit@tionex.de>
parents:
18
diff
changeset
|
36 private List states; |
| 18 | 37 |
| 38 /** | |
| 39 * Internal class for recording the enable/disable state of a single | |
| 40 * control. | |
| 41 */ | |
| 42 private class ItemState { | |
| 43 /** the control */ | |
| 44 protected Control item; | |
| 45 | |
| 46 /** the state */ | |
| 47 protected bool state; | |
| 48 | |
| 49 /** | |
| 50 * Create a new instance of the receiver. | |
| 51 * | |
| 52 * @param item | |
| 53 * @param state | |
| 54 */ | |
| 55 public this(Control item, bool state) { | |
| 56 this.item = item; | |
| 57 this.state = state; | |
| 58 } | |
| 59 | |
| 60 /** | |
| 61 * Restore the enabled state to the original value. | |
| 62 * | |
| 63 */ | |
| 64 public void restore() { | |
| 65 if (item is null || item.isDisposed()) { | |
| 66 return; | |
| 67 } | |
| 68 item.setEnabled(state); | |
| 69 } | |
| 70 } | |
| 71 | |
| 72 /** | |
| 73 * Creates a new object and saves in it the current enable/disable state of | |
| 74 * the given control and its descendents; the controls that are saved are | |
| 75 * also disabled. | |
| 76 * | |
| 77 * @param w | |
| 78 * the control | |
| 79 */ | |
| 80 protected this(Control w) { | |
| 81 this(w, null); | |
| 82 } | |
| 83 | |
| 84 /** | |
| 85 * Creates a new object and saves in it the current enable/disable state of | |
| 86 * the given control and its descendents except for the given list of | |
| 87 * exception cases; the controls that are saved are also disabled. | |
| 88 * | |
| 89 * @param w | |
| 90 * the control | |
| 91 * @param exceptions | |
| 92 * the list of controls to not disable (element type: | |
| 93 * <code>Control</code>), or <code>null</code> if none | |
| 94 */ | |
|
104
04b47443bb01
Reworked the collection uses to make use of a wrapper collection that is compatible to the Java Collections.
Frank Benoit <benoit@tionex.de>
parents:
18
diff
changeset
|
95 protected this(Control w, List exceptions) { |
| 18 | 96 // super(); |
|
104
04b47443bb01
Reworked the collection uses to make use of a wrapper collection that is compatible to the Java Collections.
Frank Benoit <benoit@tionex.de>
parents:
18
diff
changeset
|
97 states = new ArrayList(); |
| 18 | 98 this.exceptions = exceptions; |
| 99 readStateForAndDisable(w); | |
| 100 } | |
| 101 | |
| 102 /** | |
| 103 * Saves the current enable/disable state of the given control and its | |
| 104 * descendents in the returned object; the controls are all disabled. | |
| 105 * | |
| 106 * @param w | |
| 107 * the control | |
| 108 * @return an object capturing the enable/disable state | |
| 109 */ | |
| 110 public static ControlEnableState disable(Control w) { | |
| 111 return new ControlEnableState(w); | |
| 112 } | |
| 113 | |
| 114 /** | |
| 115 * Saves the current enable/disable state of the given control and its | |
| 116 * descendents in the returned object except for the given list of exception | |
| 117 * cases; the controls that are saved are also disabled. | |
| 118 * | |
| 119 * @param w | |
| 120 * the control | |
| 121 * @param exceptions | |
| 122 * the list of controls to not disable (element type: | |
| 123 * <code>Control</code>) | |
| 124 * @return an object capturing the enable/disable state | |
| 125 */ | |
|
104
04b47443bb01
Reworked the collection uses to make use of a wrapper collection that is compatible to the Java Collections.
Frank Benoit <benoit@tionex.de>
parents:
18
diff
changeset
|
126 public static ControlEnableState disable(Control w, List exceptions) { |
| 18 | 127 return new ControlEnableState(w, exceptions); |
| 128 } | |
| 129 | |
| 130 /** | |
| 131 * Recursively reads the enable/disable state for the given window and | |
| 132 * disables all controls. | |
| 133 * @param control Control | |
| 134 */ | |
| 135 private void readStateForAndDisable(Control control) { | |
| 136 if ((exceptions !is null && exceptions.contains(control))) { | |
| 137 return; | |
| 138 } | |
| 139 if (auto c = cast(Composite)control ) { | |
| 140 Control[] children = c.getChildren(); | |
| 141 for (int i = 0; i < children.length; i++) { | |
| 142 readStateForAndDisable(children[i]); | |
| 143 } | |
| 144 } | |
| 145 // XXX: Workaround for 1G2Q8SS: ITPUI:Linux - Combo box is not enabled | |
| 146 // in "File->New->Solution" | |
|
104
04b47443bb01
Reworked the collection uses to make use of a wrapper collection that is compatible to the Java Collections.
Frank Benoit <benoit@tionex.de>
parents:
18
diff
changeset
|
147 states.add(new ItemState(control, control.getEnabled())); |
| 18 | 148 control.setEnabled(false); |
| 149 } | |
| 150 | |
| 151 /** | |
| 152 * Restores the window enable state saved in this object. | |
| 153 */ | |
| 154 public void restore() { | |
| 155 int size = states.size(); | |
| 156 for (int i = 0; i < size; i++) { | |
| 157 (cast(ItemState) states.get(i)).restore(); | |
| 158 } | |
| 159 } | |
| 160 } |