Mercurial > projects > dwt-addons
annotate dwtx/jface/internal/text/InformationControlReplacer.d @ 156:a9566845f1cb
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| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Mon, 25 Aug 2008 19:03:46 +0200 |
| parents | 5cf141e43417 |
| children | 1a5b8f8129df |
| rev | line source |
|---|---|
| 129 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2008 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 150 | 7 * |
| 129 | 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.internal.text.InformationControlReplacer; | |
| 14 | |
| 131 | 15 import dwtx.jface.internal.text.NonDeletingPositionUpdater; // packageimport |
| 16 import dwtx.jface.internal.text.InternalAccessor; // packageimport | |
| 17 import dwtx.jface.internal.text.StickyHoverManager; // packageimport | |
| 18 import dwtx.jface.internal.text.TableOwnerDrawSupport; // packageimport | |
| 19 import dwtx.jface.internal.text.DelayedInputChangeListener; // packageimport | |
| 20 | |
| 21 | |
| 129 | 22 import dwt.dwthelper.utils; |
| 23 | |
| 24 | |
| 25 | |
| 26 import dwt.graphics.Point; | |
| 27 import dwt.graphics.Rectangle; | |
| 28 import dwt.widgets.Shell; | |
| 29 import dwtx.jface.text.AbstractInformationControlManager; | |
| 30 import dwtx.jface.text.AbstractReusableInformationControlCreator; | |
| 31 import dwtx.jface.text.DefaultInformationControl; | |
| 32 import dwtx.jface.text.IInformationControl; | |
| 33 import dwtx.jface.text.IInformationControlCreator; | |
| 34 import dwtx.jface.text.IInformationControlExtension2; | |
| 35 import dwtx.jface.text.IInformationControlExtension3; | |
| 36 import dwtx.jface.util.Geometry; | |
| 37 | |
| 38 | |
| 39 /** | |
| 40 * An information control replacer can replace an | |
| 41 * {@link AbstractInformationControlManager}'s control. | |
| 42 * | |
| 43 * @see AbstractInformationControlManager#setInformationControlReplacer(InformationControlReplacer) | |
| 44 * @since 3.4 | |
| 45 */ | |
| 46 public class InformationControlReplacer : AbstractInformationControlManager { | |
| 150 | 47 |
| 129 | 48 /** |
| 49 * Minimal width in pixels. | |
| 50 */ | |
| 147 | 51 private static const int MIN_WIDTH= 80; |
| 129 | 52 /** |
| 53 * Minimal height in pixels. | |
| 54 */ | |
| 147 | 55 private static const int MIN_HEIGHT= 50; |
| 150 | 56 |
| 129 | 57 /** |
| 58 * Default control creator. | |
| 59 */ | |
| 60 protected static class DefaultInformationControlCreator : AbstractReusableInformationControlCreator { | |
| 61 public IInformationControl doCreateInformationControl(Shell shell) { | |
| 62 return new DefaultInformationControl(shell, true); | |
| 63 } | |
| 64 } | |
| 65 | |
| 66 private bool fIsReplacing; | |
| 67 private Object fReplacableInformation; | |
| 68 private bool fDelayedInformationSet; | |
| 69 private Rectangle fReplaceableArea; | |
| 70 private Rectangle fContentBounds; | |
| 150 | 71 |
| 72 | |
| 129 | 73 /** |
| 74 * Creates a new information control replacer. | |
| 150 | 75 * |
| 129 | 76 * @param creator the default information control creator |
| 77 */ | |
|
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78 public this(IInformationControlCreator creator) { |
| 129 | 79 super(creator); |
| 80 takesFocusWhenVisible(false); | |
| 81 } | |
| 82 | |
| 83 /** | |
| 84 * Replace the information control. | |
| 150 | 85 * |
| 129 | 86 * @param informationPresenterControlCreator the information presenter control creator |
| 87 * @param contentBounds the bounds of the content area of the information control | |
| 88 * @param information the information to show | |
| 89 * @param subjectArea the subject area | |
| 90 * @param takeFocus <code>true</code> iff the replacing information control should take focus | |
| 91 */ | |
| 156 | 92 public void replaceInformationControl(IInformationControlCreator informationPresenterControlCreator, Rectangle contentBounds, Object information, Rectangle subjectArea, bool takeFocus) { |
| 150 | 93 |
| 129 | 94 try { |
| 95 fIsReplacing= true; | |
| 96 if (! fDelayedInformationSet) | |
| 97 fReplacableInformation= information; | |
| 98 else | |
| 99 takeFocus= true; // delayed input has been set, so the original info control must have been focused | |
| 100 fContentBounds= contentBounds; | |
| 101 fReplaceableArea= subjectArea; | |
| 150 | 102 |
| 129 | 103 setCustomInformationControlCreator(informationPresenterControlCreator); |
| 150 | 104 |
| 129 | 105 takesFocusWhenVisible(takeFocus); |
| 150 | 106 |
| 129 | 107 showInformation(); |
| 108 } finally { | |
| 109 fIsReplacing= false; | |
| 110 fReplacableInformation= null; | |
| 111 fDelayedInformationSet= false; | |
| 112 fReplaceableArea= null; | |
| 113 setCustomInformationControlCreator(null); | |
| 114 } | |
| 115 } | |
| 150 | 116 |
| 129 | 117 /* |
| 118 * @see dwtx.jface.text.AbstractInformationControlManager#computeInformation() | |
| 119 */ | |
| 120 protected void computeInformation() { | |
| 121 if (fIsReplacing && fReplacableInformation !is null) { | |
| 122 setInformation(fReplacableInformation, fReplaceableArea); | |
| 123 return; | |
| 124 } | |
| 150 | 125 |
| 126 if (DEBUG) | |
|
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127 System.out_.println("InformationControlReplacer: no active replaceable"); //$NON-NLS-1$ |
| 129 | 128 } |
| 129 | |
| 130 /** | |
| 131 * Opens the information control with the given information and the specified | |
| 132 * subject area. It also activates the information control closer. | |
| 133 * | |
| 134 * @param subjectArea the information area | |
| 135 * @param information the information | |
| 136 */ | |
| 137 public void showInformationControl(Rectangle subjectArea, Object information) { | |
| 138 IInformationControl informationControl= getInformationControl(); | |
| 150 | 139 |
| 129 | 140 Rectangle controlBounds= fContentBounds; |
| 138 | 141 if ( cast(IInformationControlExtension3)informationControl ) { |
| 134 | 142 IInformationControlExtension3 iControl3= cast(IInformationControlExtension3) informationControl; |
| 129 | 143 Rectangle trim= iControl3.computeTrim(); |
| 144 controlBounds= Geometry.add(controlBounds, trim); | |
| 150 | 145 |
| 129 | 146 /* |
| 147 * Ensure minimal size. Interacting with a tiny information control | |
| 148 * (resizing, selecting text) would be a pain. | |
| 149 */ | |
| 150 controlBounds.width= Math.max(controlBounds.width, MIN_WIDTH); | |
| 151 controlBounds.height= Math.max(controlBounds.height, MIN_HEIGHT); | |
| 150 | 152 |
| 129 | 153 getInternalAccessor().cropToClosestMonitor(controlBounds); |
| 154 } | |
| 150 | 155 |
| 129 | 156 Point location= Geometry.getLocation(controlBounds); |
| 157 Point size= Geometry.getSize(controlBounds); | |
| 150 | 158 |
| 129 | 159 // Caveat: some IInformationControls fail unless setSizeConstraints(..) is called with concrete values |
| 160 informationControl.setSizeConstraints(size.x, size.y); | |
| 150 | 161 |
| 138 | 162 if ( cast(IInformationControlExtension2)informationControl ) |
| 134 | 163 (cast(IInformationControlExtension2) informationControl).setInput(information); |
| 129 | 164 else |
| 165 informationControl.setInformation(information.toString()); | |
| 150 | 166 |
| 129 | 167 informationControl.setLocation(location); |
| 168 informationControl.setSize(size.x, size.y); | |
| 150 | 169 |
| 129 | 170 showInformationControl(subjectArea); |
| 171 } | |
| 150 | 172 |
| 129 | 173 /* |
| 174 * @see dwtx.jface.text.AbstractInformationControlManager#hideInformationControl() | |
| 175 */ | |
| 176 public void hideInformationControl() { | |
| 177 super.hideInformationControl(); | |
| 178 } | |
| 179 | |
| 180 /** | |
| 181 * @param input the delayed input, or <code>null</code> to request cancellation | |
| 182 */ | |
| 183 public void setDelayedInput(Object input) { | |
| 184 fReplacableInformation= input; | |
| 185 if (! isReplacing()) { | |
| 186 fDelayedInformationSet= true; | |
| 150 | 187 } else if (cast(IInformationControlExtension2)getCurrentInformationControl2() ) { |
| 134 | 188 (cast(IInformationControlExtension2) getCurrentInformationControl2()).setInput(input); |
| 129 | 189 } else if (getCurrentInformationControl2() !is null) { |
| 190 getCurrentInformationControl2().setInformation(input.toString()); | |
| 191 } | |
| 192 } | |
| 193 | |
| 194 /** | |
| 195 * Tells whether the replacer is currently replacing another information control. | |
| 150 | 196 * |
| 129 | 197 * @return <code>true</code> while code from {@link #replaceInformationControl(IInformationControlCreator, Rectangle, Object, Rectangle, bool)} is run |
| 198 */ | |
| 199 public bool isReplacing() { | |
| 200 return fIsReplacing; | |
| 201 } | |
| 150 | 202 |
| 129 | 203 /** |
| 204 * @return the current information control, or <code>null</code> if none available | |
| 205 */ | |
| 206 public IInformationControl getCurrentInformationControl2() { | |
| 207 return getInternalAccessor().getCurrentInformationControl(); | |
| 208 } | |
| 150 | 209 |
| 129 | 210 /** |
| 211 * The number of pixels to blow up the keep-up zone. | |
| 150 | 212 * |
| 129 | 213 * @return the margin in pixels |
| 214 */ | |
| 215 public int getKeepUpMargin() { | |
| 216 return 15; | |
| 217 } | |
| 218 } |