Mercurial > projects > dwt-addons
annotate dwtx/jface/internal/text/link/contentassist/AdditionalInfoController2.d @ 151:eb21d3dfc767
fix module statement
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 24 Aug 2008 23:55:45 +0200 |
| parents | 75302ef3f92f |
| children | 7926b636c282 |
| rev | line source |
|---|---|
| 129 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 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 | |
| 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 | |
| 131 | 14 |
| 151 | 15 module dwtx.jface.internal.text.link.contentassist.AdditionalInfoController2; |
| 16 | |
| 131 | 17 import dwtx.jface.internal.text.link.contentassist.IProposalListener; // packageimport |
| 18 import dwtx.jface.internal.text.link.contentassist.LineBreakingReader; // packageimport | |
| 19 import dwtx.jface.internal.text.link.contentassist.CompletionProposalPopup2; // packageimport | |
| 20 import dwtx.jface.internal.text.link.contentassist.ContextInformationPopup2; // packageimport | |
| 21 import dwtx.jface.internal.text.link.contentassist.ContentAssistMessages; // packageimport | |
| 22 import dwtx.jface.internal.text.link.contentassist.Helper2; // packageimport | |
| 23 import dwtx.jface.internal.text.link.contentassist.PopupCloser2; // packageimport | |
| 24 import dwtx.jface.internal.text.link.contentassist.IContentAssistListener2; // packageimport | |
| 25 import dwtx.jface.internal.text.link.contentassist.ContentAssistant2; // packageimport | |
| 26 | |
| 129 | 27 import dwt.dwthelper.utils; |
| 28 | |
| 29 | |
| 30 | |
| 31 | |
| 32 | |
| 33 import dwt.events.SelectionEvent; | |
| 34 import dwt.events.SelectionListener; | |
| 35 import dwt.graphics.Point; | |
| 36 import dwt.graphics.Rectangle; | |
| 37 import dwt.widgets.Control; | |
| 38 import dwt.widgets.Table; | |
| 39 import dwt.widgets.TableItem; | |
| 40 import dwtx.core.runtime.Assert; | |
| 41 import dwtx.jface.text.AbstractInformationControlManager; | |
| 42 import dwtx.jface.text.IInformationControl; | |
| 43 import dwtx.jface.text.IInformationControlCreator; | |
| 44 import dwtx.jface.text.contentassist.ICompletionProposal; | |
| 45 import dwtx.jface.text.contentassist.ICompletionProposalExtension3; | |
| 46 | |
| 47 | |
| 48 | |
| 49 /** | |
| 50 * Displays the additional information available for a completion proposal. | |
| 51 * | |
| 52 * @since 2.0 | |
| 53 */ | |
| 54 class AdditionalInfoController2 : AbstractInformationControlManager , Runnable { | |
| 55 | |
| 56 /** | |
| 57 * Internal table selection listener. | |
| 58 */ | |
| 59 private class TableSelectionListener : SelectionListener { | |
| 60 | |
| 61 /* | |
| 62 * @see SelectionListener#widgetSelected(SelectionEvent) | |
| 63 */ | |
| 64 public void widgetSelected(SelectionEvent e) { | |
| 65 handleTableSelectionChanged(); | |
| 66 } | |
| 67 | |
| 68 /* | |
| 69 * @see SelectionListener#widgetDefaultSelected(SelectionEvent) | |
| 70 */ | |
| 71 public void widgetDefaultSelected(SelectionEvent e) { | |
| 72 } | |
| 73 } | |
| 74 | |
| 75 | |
| 76 /** The proposal table */ | |
| 77 private Table fProposalTable; | |
| 78 /** The thread controlling the delayed display of the additional info */ | |
| 79 private Thread fThread; | |
| 80 /** Indicates whether the display delay has been reset */ | |
| 81 private bool fIsReset= false; | |
| 82 /** Object to synchronize display thread and table selection changes */ | |
| 146 | 83 private const Object fMutex= new Object(); |
| 129 | 84 /** Thread access lock. */ |
| 146 | 85 private const Object fThreadAccess= new Object(); |
| 129 | 86 /** Object to synchronize initial display of additional info */ |
| 87 private Object fStartSignal; | |
| 88 /** The table selection listener */ | |
| 89 private SelectionListener fSelectionListener= new TableSelectionListener(); | |
| 90 /** The delay after which additional information is displayed */ | |
| 91 private int fDelay; | |
| 92 | |
| 93 | |
| 94 /** | |
| 95 * Creates a new additional information controller. | |
| 96 * | |
| 97 * @param creator the information control creator to be used by this controller | |
| 98 * @param delay time in milliseconds after which additional info should be displayed | |
| 99 */ | |
|
133
7d818bd32d63
Fix ctors to this with gvim regexp
Frank Benoit <benoit@tionex.de>
parents:
131
diff
changeset
|
100 this(IInformationControlCreator creator, int delay) { |
| 129 | 101 super(creator); |
| 102 fDelay= delay; | |
| 103 setAnchor(ANCHOR_RIGHT); | |
| 130 | 104 setFallbackAnchors([ANCHOR_RIGHT, ANCHOR_LEFT, ANCHOR_BOTTOM ]); |
| 129 | 105 } |
| 106 | |
| 107 /* | |
| 108 * @see AbstractInformationControlManager#install(Control) | |
| 109 */ | |
| 110 public void install(Control control) { | |
| 111 | |
| 112 if (fProposalTable is control) { | |
| 113 // already installed | |
| 114 return; | |
| 115 } | |
| 116 | |
| 117 super.install(control); | |
| 118 | |
| 138 | 119 Assert.isTrue( cast(Table)control ); |
| 134 | 120 fProposalTable= cast(Table) control; |
| 129 | 121 fProposalTable.addSelectionListener(fSelectionListener); |
| 122 synchronized (fThreadAccess) { | |
| 123 if (fThread !is null) | |
| 124 fThread.interrupt(); | |
| 125 fThread= new Thread(this, ContentAssistMessages.getString("InfoPopup.info_delay_timer_name")); //$NON-NLS-1$ | |
| 126 | |
| 127 fStartSignal= new Object(); | |
| 128 synchronized (fStartSignal) { | |
| 129 fThread.start(); | |
| 130 try { | |
| 131 // wait until thread is ready | |
| 132 fStartSignal.wait(); | |
| 133 } catch (InterruptedException x) { | |
| 134 } | |
| 135 } | |
| 136 } | |
| 137 } | |
| 138 | |
| 139 /* | |
| 140 * @see AbstractInformationControlManager#disposeInformationControl() | |
| 141 */ | |
| 142 public void disposeInformationControl() { | |
| 143 | |
| 144 synchronized (fThreadAccess) { | |
| 145 if (fThread !is null) { | |
| 146 fThread.interrupt(); | |
| 147 fThread= null; | |
| 148 } | |
| 149 } | |
| 150 | |
| 151 if (fProposalTable !is null && !fProposalTable.isDisposed()) { | |
| 152 fProposalTable.removeSelectionListener(fSelectionListener); | |
| 153 fProposalTable= null; | |
| 154 } | |
| 155 | |
| 156 super.disposeInformationControl(); | |
| 157 } | |
| 158 | |
| 159 /* | |
| 160 * @see java.lang.Runnable#run() | |
| 161 */ | |
| 162 public void run() { | |
| 163 try { | |
| 164 while (true) { | |
| 165 | |
| 166 synchronized (fMutex) { | |
| 167 | |
| 168 if (fStartSignal !is null) { | |
| 169 synchronized (fStartSignal) { | |
| 170 fStartSignal.notifyAll(); | |
| 171 fStartSignal= null; | |
| 172 } | |
| 173 } | |
| 174 | |
| 175 // Wait for a selection event to occur. | |
| 176 fMutex.wait(); | |
| 177 | |
| 178 while (true) { | |
| 179 fIsReset= false; | |
| 180 // Delay before showing the popup. | |
| 181 fMutex.wait(fDelay); | |
| 182 if (!fIsReset) | |
| 183 break; | |
| 184 } | |
| 185 } | |
| 186 | |
| 187 if (fProposalTable !is null && !fProposalTable.isDisposed()) { | |
| 135 | 188 fProposalTable.getDisplay().asyncExec(new class() Runnable { |
| 129 | 189 public void run() { |
| 190 if (!fIsReset) | |
| 191 showInformation(); | |
| 192 } | |
| 193 }); | |
| 194 } | |
| 195 | |
| 196 } | |
| 197 } catch (InterruptedException e) { | |
| 198 } | |
| 199 | |
| 200 synchronized (fThreadAccess) { | |
| 201 // only null fThread if it is us! | |
| 202 if (Thread.currentThread() is fThread) | |
| 203 fThread= null; | |
| 204 } | |
| 205 } | |
| 206 | |
| 207 /** | |
| 208 *Handles a change of the line selected in the associated selector. | |
| 209 */ | |
| 210 public void handleTableSelectionChanged() { | |
| 211 | |
| 212 if (fProposalTable !is null && !fProposalTable.isDisposed() && fProposalTable.isVisible()) { | |
| 213 synchronized (fMutex) { | |
| 214 fIsReset= true; | |
| 215 fMutex.notifyAll(); | |
| 216 } | |
| 217 } | |
| 218 } | |
| 219 | |
| 220 /* | |
| 221 * @see AbstractInformationControlManager#computeInformation() | |
| 222 */ | |
| 223 protected void computeInformation() { | |
| 224 | |
| 225 if (fProposalTable is null || fProposalTable.isDisposed()) | |
| 226 return; | |
| 227 | |
| 228 TableItem[] selection= fProposalTable.getSelection(); | |
| 229 if (selection !is null && selection.length > 0) { | |
| 230 | |
| 231 TableItem item= selection[0]; | |
| 232 | |
| 233 // compute information | |
| 234 String information= null; | |
| 235 Object d= item.getData(); | |
| 236 | |
| 138 | 237 if ( cast(ICompletionProposal)d ) { |
| 134 | 238 ICompletionProposal p= cast(ICompletionProposal) d; |
| 129 | 239 information= p.getAdditionalProposalInfo(); |
| 240 } | |
| 241 | |
| 138 | 242 if ( cast(ICompletionProposalExtension3)d ) |
| 134 | 243 setCustomInformationControlCreator((cast(ICompletionProposalExtension3) d).getInformationControlCreator()); |
| 129 | 244 else |
| 245 setCustomInformationControlCreator(null); | |
| 246 | |
| 247 // compute subject area | |
| 248 setMargins(4, -1); | |
| 249 Rectangle area= fProposalTable.getBounds(); | |
| 250 area.x= 0; // subject area is the whole subject control | |
| 251 area.y= 0; | |
| 252 | |
| 253 // set information & subject area | |
| 254 setInformation(information, area); | |
| 255 } | |
| 256 } | |
| 257 | |
| 258 /* | |
| 259 * @see dwtx.jface.text.AbstractInformationControlManager#computeSizeConstraints(Control, IInformationControl) | |
| 260 */ | |
| 261 protected Point computeSizeConstraints(Control subjectControl, IInformationControl informationControl) { | |
| 262 // at least as big as the proposal table | |
| 263 Point sizeConstraint= super.computeSizeConstraints(subjectControl, informationControl); | |
| 264 Point size= subjectControl.getSize(); | |
| 265 if (sizeConstraint.x < size.x) | |
| 266 sizeConstraint.x= size.x; | |
| 267 if (sizeConstraint.y < size.y) | |
| 268 sizeConstraint.y= size.y; | |
| 269 return sizeConstraint; | |
| 270 } | |
| 271 } | |
| 272 | |
| 273 |