Mercurial > projects > dwt-addons
annotate dwtx/jface/internal/text/link/contentassist/AdditionalInfoController2.d @ 200:eb3414669eb0 default tip
fix for dmd 1.041 and tango 0.99.8
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sat, 28 Mar 2009 03:09:57 +0100 |
| parents | cef27f663573 |
| children |
| 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; |
| 167 | 28 import dwtx.dwtxhelper.JThread; |
| 168 | 29 import tango.core.sync.Mutex; |
| 30 import tango.core.sync.Condition; | |
| 129 | 31 |
| 32 import dwt.events.SelectionEvent; | |
| 33 import dwt.events.SelectionListener; | |
| 34 import dwt.graphics.Point; | |
| 35 import dwt.graphics.Rectangle; | |
| 36 import dwt.widgets.Control; | |
| 37 import dwt.widgets.Table; | |
| 38 import dwt.widgets.TableItem; | |
| 39 import dwtx.core.runtime.Assert; | |
| 40 import dwtx.jface.text.AbstractInformationControlManager; | |
| 41 import dwtx.jface.text.IInformationControl; | |
| 42 import dwtx.jface.text.IInformationControlCreator; | |
| 43 import dwtx.jface.text.contentassist.ICompletionProposal; | |
| 44 import dwtx.jface.text.contentassist.ICompletionProposalExtension3; | |
| 45 | |
| 46 | |
| 47 /** | |
| 48 * Displays the additional information available for a completion proposal. | |
| 49 * | |
| 50 * @since 2.0 | |
| 51 */ | |
| 52 class AdditionalInfoController2 : AbstractInformationControlManager , Runnable { | |
| 53 | |
| 54 /** | |
| 55 * Internal table selection listener. | |
| 56 */ | |
| 57 private class TableSelectionListener : SelectionListener { | |
| 58 | |
| 59 /* | |
| 60 * @see SelectionListener#widgetSelected(SelectionEvent) | |
| 61 */ | |
| 62 public void widgetSelected(SelectionEvent e) { | |
| 63 handleTableSelectionChanged(); | |
| 64 } | |
| 65 | |
| 66 /* | |
| 67 * @see SelectionListener#widgetDefaultSelected(SelectionEvent) | |
| 68 */ | |
| 69 public void widgetDefaultSelected(SelectionEvent e) { | |
| 70 } | |
| 71 } | |
| 72 | |
| 73 | |
| 74 /** The proposal table */ | |
| 75 private Table fProposalTable; | |
| 76 /** The thread controlling the delayed display of the additional info */ | |
| 167 | 77 private JThread fThread; |
| 129 | 78 /** Indicates whether the display delay has been reset */ |
| 79 private bool fIsReset= false; | |
| 80 /** Object to synchronize display thread and table selection changes */ | |
| 168 | 81 private const Mutex fMutex; |
| 82 private const Condition fMutex_cond; | |
| 129 | 83 /** Thread access lock. */ |
| 159 | 84 private const Object fThreadAccess; |
| 129 | 85 /** Object to synchronize initial display of additional info */ |
| 168 | 86 private Mutex fStartSignal; |
| 87 private Condition fStartSignal_cond; | |
| 129 | 88 /** The table selection listener */ |
| 159 | 89 private SelectionListener fSelectionListener; |
| 129 | 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) { |
| 159 | 101 fSelectionListener= new TableSelectionListener(); |
| 102 fThreadAccess= new Object(); | |
| 168 | 103 fMutex= new Mutex(); |
| 104 fMutex_cond= new Condition(fMutex); | |
| 129 | 105 super(creator); |
| 106 fDelay= delay; | |
| 107 setAnchor(ANCHOR_RIGHT); | |
| 130 | 108 setFallbackAnchors([ANCHOR_RIGHT, ANCHOR_LEFT, ANCHOR_BOTTOM ]); |
| 129 | 109 } |
| 110 | |
| 111 /* | |
| 112 * @see AbstractInformationControlManager#install(Control) | |
| 113 */ | |
| 114 public void install(Control control) { | |
| 115 | |
| 116 if (fProposalTable is control) { | |
| 117 // already installed | |
| 118 return; | |
| 119 } | |
| 120 | |
| 121 super.install(control); | |
| 122 | |
| 162 | 123 Assert.isTrue( null !is cast(Table)control ); |
| 134 | 124 fProposalTable= cast(Table) control; |
| 129 | 125 fProposalTable.addSelectionListener(fSelectionListener); |
| 126 synchronized (fThreadAccess) { | |
| 127 if (fThread !is null) | |
| 128 fThread.interrupt(); | |
| 167 | 129 fThread= new JThread(this, ContentAssistMessages.getString("InfoPopup.info_delay_timer_name")); //$NON-NLS-1$ |
| 129 | 130 |
| 168 | 131 fStartSignal= new Mutex(); |
| 132 fStartSignal_cond= new Condition(fStartSignal); | |
| 129 | 133 synchronized (fStartSignal) { |
| 134 fThread.start(); | |
| 135 try { | |
| 136 // wait until thread is ready | |
| 168 | 137 fStartSignal_cond.wait(); |
| 129 | 138 } catch (InterruptedException x) { |
| 139 } | |
| 140 } | |
| 141 } | |
| 142 } | |
| 143 | |
| 144 /* | |
| 145 * @see AbstractInformationControlManager#disposeInformationControl() | |
| 146 */ | |
| 147 public void disposeInformationControl() { | |
| 148 | |
| 149 synchronized (fThreadAccess) { | |
| 150 if (fThread !is null) { | |
| 151 fThread.interrupt(); | |
| 152 fThread= null; | |
| 153 } | |
| 154 } | |
| 155 | |
| 156 if (fProposalTable !is null && !fProposalTable.isDisposed()) { | |
| 157 fProposalTable.removeSelectionListener(fSelectionListener); | |
| 158 fProposalTable= null; | |
| 159 } | |
| 160 | |
| 161 super.disposeInformationControl(); | |
| 162 } | |
| 163 | |
| 164 /* | |
| 165 * @see java.lang.Runnable#run() | |
| 166 */ | |
| 167 public void run() { | |
| 168 try { | |
| 169 while (true) { | |
| 170 | |
| 171 synchronized (fMutex) { | |
| 172 | |
| 173 if (fStartSignal !is null) { | |
| 174 synchronized (fStartSignal) { | |
| 168 | 175 fStartSignal_cond.notifyAll(); |
| 129 | 176 fStartSignal= null; |
| 168 | 177 fStartSignal_cond = null; |
| 129 | 178 } |
| 179 } | |
| 180 | |
| 181 // Wait for a selection event to occur. | |
| 168 | 182 fMutex_cond.wait(); |
| 129 | 183 |
| 184 while (true) { | |
| 185 fIsReset= false; | |
| 186 // Delay before showing the popup. | |
| 168 | 187 fMutex_cond.wait(fDelay); |
| 129 | 188 if (!fIsReset) |
| 189 break; | |
| 190 } | |
| 191 } | |
| 192 | |
| 193 if (fProposalTable !is null && !fProposalTable.isDisposed()) { | |
| 135 | 194 fProposalTable.getDisplay().asyncExec(new class() Runnable { |
| 129 | 195 public void run() { |
| 196 if (!fIsReset) | |
| 197 showInformation(); | |
| 198 } | |
| 199 }); | |
| 200 } | |
| 201 | |
| 202 } | |
| 203 } catch (InterruptedException e) { | |
| 204 } | |
| 205 | |
| 206 synchronized (fThreadAccess) { | |
| 207 // only null fThread if it is us! | |
| 167 | 208 if (JThread.currentThread() is fThread) |
| 129 | 209 fThread= null; |
| 210 } | |
| 211 } | |
| 212 | |
| 213 /** | |
| 214 *Handles a change of the line selected in the associated selector. | |
| 215 */ | |
| 216 public void handleTableSelectionChanged() { | |
| 217 | |
| 218 if (fProposalTable !is null && !fProposalTable.isDisposed() && fProposalTable.isVisible()) { | |
| 219 synchronized (fMutex) { | |
| 220 fIsReset= true; | |
| 168 | 221 fMutex_cond.notifyAll(); |
| 129 | 222 } |
| 223 } | |
| 224 } | |
| 225 | |
| 226 /* | |
| 227 * @see AbstractInformationControlManager#computeInformation() | |
| 228 */ | |
| 229 protected void computeInformation() { | |
| 230 | |
| 231 if (fProposalTable is null || fProposalTable.isDisposed()) | |
| 232 return; | |
| 233 | |
| 234 TableItem[] selection= fProposalTable.getSelection(); | |
| 235 if (selection !is null && selection.length > 0) { | |
| 236 | |
| 237 TableItem item= selection[0]; | |
| 238 | |
| 239 // compute information | |
| 240 String information= null; | |
| 241 Object d= item.getData(); | |
| 242 | |
| 138 | 243 if ( cast(ICompletionProposal)d ) { |
| 134 | 244 ICompletionProposal p= cast(ICompletionProposal) d; |
| 129 | 245 information= p.getAdditionalProposalInfo(); |
| 246 } | |
| 247 | |
| 138 | 248 if ( cast(ICompletionProposalExtension3)d ) |
| 134 | 249 setCustomInformationControlCreator((cast(ICompletionProposalExtension3) d).getInformationControlCreator()); |
| 129 | 250 else |
| 251 setCustomInformationControlCreator(null); | |
| 252 | |
| 253 // compute subject area | |
| 254 setMargins(4, -1); | |
| 255 Rectangle area= fProposalTable.getBounds(); | |
| 256 area.x= 0; // subject area is the whole subject control | |
| 257 area.y= 0; | |
| 258 | |
| 259 // set information & subject area | |
| 260 setInformation(information, area); | |
| 261 } | |
| 262 } | |
| 263 | |
| 264 /* | |
| 265 * @see dwtx.jface.text.AbstractInformationControlManager#computeSizeConstraints(Control, IInformationControl) | |
| 266 */ | |
| 267 protected Point computeSizeConstraints(Control subjectControl, IInformationControl informationControl) { | |
| 268 // at least as big as the proposal table | |
| 269 Point sizeConstraint= super.computeSizeConstraints(subjectControl, informationControl); | |
| 270 Point size= subjectControl.getSize(); | |
| 271 if (sizeConstraint.x < size.x) | |
| 272 sizeConstraint.x= size.x; | |
| 273 if (sizeConstraint.y < size.y) | |
| 274 sizeConstraint.y= size.y; | |
| 275 return sizeConstraint; | |
| 276 } | |
| 277 } | |
| 278 | |
| 279 |