diff options
Diffstat (limited to 'org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/memory/renderings/AsyncVirtualContentTableViewer.java')
| -rw-r--r-- | org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/memory/renderings/AsyncVirtualContentTableViewer.java | 418 |
1 files changed, 195 insertions, 223 deletions
diff --git a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/memory/renderings/AsyncVirtualContentTableViewer.java b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/memory/renderings/AsyncVirtualContentTableViewer.java index f1759b003..46ea5d76d 100644 --- a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/memory/renderings/AsyncVirtualContentTableViewer.java +++ b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/memory/renderings/AsyncVirtualContentTableViewer.java @@ -1,5 +1,5 @@ /******************************************************************************* - * Copyright (c) 2006, 2012 IBM Corporation and others. + * Copyright (c) 2006, 2013 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at @@ -40,8 +40,8 @@ import org.eclipse.ui.progress.UIJob; abstract public class AsyncVirtualContentTableViewer extends AsynchronousTableViewer { private Object fPendingTopIndexKey; - private ArrayList fTopIndexQueue = new ArrayList(); - + private ArrayList<Object> fTopIndexQueue = new ArrayList<Object>(); + private boolean fPendingResizeColumns; private ListenerList fVirtualContentListeners; private SelectionListener fScrollSelectionListener; @@ -54,57 +54,52 @@ abstract public class AsyncVirtualContentTableViewer extends AsynchronousTableVi fPresentationErrorListeners = new ListenerList(); initScrollBarListener(); } - - private void initScrollBarListener() - { + + private void initScrollBarListener() { ScrollBar scroll = getTable().getVerticalBar(); fScrollSelectionListener = new SelectionAdapter() { + @Override public void widgetSelected(SelectionEvent e) { handleScrollBarSelection(); - }}; + } + }; scroll.addSelectionListener(fScrollSelectionListener); } - public void setTopIndex(Object key) - { + public void setTopIndex(Object key) { fPendingTopIndexKey = key; attemptSetTopIndex(); } - - protected Object getPendingSetTopIndexKey() - { + + protected Object getPendingSetTopIndexKey() { return fPendingTopIndexKey; } - + + @Override protected void handlePresentationFailure(IStatusMonitor monitor, IStatus status) { notifyPresentationError(monitor, status); } - - public void disposeColumns() - { + + public void disposeColumns() { // clean up old columns TableColumn[] oldColumns = getTable().getColumns(); - - for (int i=0; i<oldColumns.length; i++) - { + + for (int i = 0; i < oldColumns.length; i++) { oldColumns[i].dispose(); } } - - public void disposeCellEditors() - { + + public void disposeCellEditors() { // clean up old cell editors CellEditor[] oldCellEditors = getCellEditors(); - - if (oldCellEditors != null) - { - for (int i=0; i<oldCellEditors.length; i++) - { + + if (oldCellEditors != null) { + for (int i = 0; i < oldCellEditors.length; i++) { oldCellEditors[i].dispose(); } } } - + /** * Resize column to the preferred size. */ @@ -112,197 +107,183 @@ abstract public class AsyncVirtualContentTableViewer extends AsynchronousTableVi fPendingResizeColumns = true; fPendingResizeColumns = attemptResizeColumnsToPreferredSize(); } - - private boolean attemptResizeColumnsToPreferredSize() - { - if (fPendingResizeColumns) - { - if(!hasPendingUpdates()) { - UIJob job = new UIJob("packcolumns"){ //$NON-NLS-1$ + private boolean attemptResizeColumnsToPreferredSize() { + if (fPendingResizeColumns) { + if (!hasPendingUpdates()) { + UIJob job = new UIJob("packcolumns") { //$NON-NLS-1$ + + @Override public IStatus runInUIThread(IProgressMonitor monitor) { Table table = getTable(); - - if (!table.isDisposed()) - { - // if table size is zero, the rendering has not been made visible + + if (!table.isDisposed()) { + // if table size is zero, the rendering has not been + // made visible // cannot pack until the rendering is visible - if (table.getSize().x > 0) - { + if (table.getSize().x > 0) { TableColumn[] columns = table.getColumns(); - for (int i=0 ;i<columns.length-1; i++) - { + for (int i = 0; i < columns.length - 1; i++) { columns[i].pack(); - } - } - else - { + } + } else { fPendingResizeColumns = true; } } return Status.OK_STATUS; - }}; + } + }; job.setSystem(true); - job.schedule(); + job.schedule(); return false; } } return fPendingResizeColumns; } - + /** * Attempts to update any pending setTopIndex */ protected synchronized void attemptSetTopIndex() { if (fPendingTopIndexKey != null) { - Object remaining = doAttemptSetTopIndex(fPendingTopIndexKey); - if (remaining == null) - { - fPendingTopIndexKey = remaining; - } + Object remaining = doAttemptSetTopIndex(fPendingTopIndexKey); + if (remaining == null) { + fPendingTopIndexKey = remaining; + } } } - - private synchronized Object doAttemptSetTopIndex(final Object topIndexKey) - { + + private synchronized Object doAttemptSetTopIndex(final Object topIndexKey) { final int i = getVirtualContentModel().indexOfKey(topIndexKey); - if (i >= 0) - { - UIJob job = new UIJob("set top index"){ //$NON-NLS-1$ - - public IStatus runInUIThread(IProgressMonitor monitor) { - if (getTable().isDisposed()) - { - fTopIndexQueue.clear(); - return Status.OK_STATUS; + if (i >= 0) { + UIJob job = new UIJob("set top index") { //$NON-NLS-1$ + + @Override + public IStatus runInUIThread(IProgressMonitor monitor) { + if (getTable().isDisposed()) { + fTopIndexQueue.clear(); + return Status.OK_STATUS; + } + + int idx = getVirtualContentModel().indexOfKey(topIndexKey); + if (idx >= 0) { + if (DebugUIPlugin.DEBUG_DYNAMIC_LOADING) { + DebugUIPlugin.trace("actual set top index: " + ((BigInteger) topIndexKey).toString(16)); //$NON-NLS-1$ } - - int idx = getVirtualContentModel().indexOfKey(topIndexKey); - if (idx >= 0) - { + fPendingTopIndexKey = null; + setTopIndexKey(topIndexKey); + getTable().setTopIndex(idx); + tableTopIndexSetComplete(); + + if (getTable().getTopIndex() != idx) { if (DebugUIPlugin.DEBUG_DYNAMIC_LOADING) { - DebugUIPlugin.trace("actual set top index: " + ((BigInteger)topIndexKey).toString(16)); //$NON-NLS-1$ + DebugUIPlugin.trace(">>> FAILED set top index : " + ((BigInteger) topIndexKey).toString(16)); //$NON-NLS-1$ } - fPendingTopIndexKey = null; - setTopIndexKey(topIndexKey); - getTable().setTopIndex(idx); - tableTopIndexSetComplete(); - - if (getTable().getTopIndex() != idx ) - { + + // only retry if we have pending updates + if (hasPendingUpdates()) { if (DebugUIPlugin.DEBUG_DYNAMIC_LOADING) { - DebugUIPlugin.trace(">>> FAILED set top index : " + ((BigInteger)topIndexKey).toString(16)); //$NON-NLS-1$ + DebugUIPlugin.trace(">>> Retry top index: " + ((BigInteger) topIndexKey).toString(16)); //$NON-NLS-1$ } - // only retry if we have pending updates - if (hasPendingUpdates()) - { - if (DebugUIPlugin.DEBUG_DYNAMIC_LOADING) { - DebugUIPlugin.trace(">>> Retry top index: " + ((BigInteger)topIndexKey).toString(16)); //$NON-NLS-1$ - } - - fPendingTopIndexKey = topIndexKey; - } - } - } - else - { - if (DebugUIPlugin.DEBUG_DYNAMIC_LOADING) { - DebugUIPlugin.trace("cannot find key, put it back to the queue: " + topIndexKey); //$NON-NLS-1$ + fPendingTopIndexKey = topIndexKey; } - fPendingTopIndexKey = topIndexKey; } - - // remove the top index key from queue when it is processed - removeKeyFromQueue(topIndexKey); - + } else { + if (DebugUIPlugin.DEBUG_DYNAMIC_LOADING) { + DebugUIPlugin.trace("cannot find key, put it back to the queue: " + topIndexKey); //$NON-NLS-1$ + } + fPendingTopIndexKey = topIndexKey; + } + + // remove the top index key from queue when it is processed + removeKeyFromQueue(topIndexKey); + return Status.OK_STATUS; - }}; - + } + }; + // set top index does not happen immediately, keep track of // all pending set top index addKeyToQueue(topIndexKey); - + job.setSystem(true); job.schedule(); return topIndexKey; } return topIndexKey; } - - protected void tableTopIndexSetComplete() - { - - } - - public void addVirtualContentListener(IVirtualContentListener listener) - { - fVirtualContentListeners.add(listener); - } - - public void removeVirtualContentListener(IVirtualContentListener listener) - { - fVirtualContentListeners.remove(listener); - } - - protected void notifyListenersAtBufferStart() - { - int topIdx = getTable().getTopIndex(); - Object[] listeners = fVirtualContentListeners.getListeners(); - + + protected void tableTopIndexSetComplete() { + + } + + public void addVirtualContentListener(IVirtualContentListener listener) { + fVirtualContentListeners.add(listener); + } + + public void removeVirtualContentListener(IVirtualContentListener listener) { + fVirtualContentListeners.remove(listener); + } + + protected void notifyListenersAtBufferStart() { + int topIdx = getTable().getTopIndex(); + Object[] listeners = fVirtualContentListeners.getListeners(); + for (int i = 0; i < listeners.length; i++) { final IVirtualContentListener listener = (IVirtualContentListener) listeners[i]; - if (topIdx < listener.getThreshold(IVirtualContentListener.BUFFER_START)) - { + if (topIdx < listener.getThreshold(IVirtualContentListener.BUFFER_START)) { SafeRunner.run(new ISafeRunnable() { - public void run() throws Exception { + @Override + public void run() throws Exception { listener.handledAtBufferStart(); } + + @Override public void handleException(Throwable exception) { DebugUIPlugin.log(exception); } }); } } - } - - protected void notifyListenersAtBufferEnd() - { + } + + protected void notifyListenersAtBufferEnd() { Object[] listeners = fVirtualContentListeners.getListeners(); int topIdx = getTable().getTopIndex(); int bottomIdx = topIdx + getNumberOfVisibleLines(); int elementsCnt = getVirtualContentModel().getElements().length; int numLinesLeft = elementsCnt - bottomIdx; - + for (int i = 0; i < listeners.length; i++) { final IVirtualContentListener listener = (IVirtualContentListener) listeners[i]; - if (numLinesLeft <= listener.getThreshold(IVirtualContentListener.BUFFER_END)) - { + if (numLinesLeft <= listener.getThreshold(IVirtualContentListener.BUFFER_END)) { SafeRunner.run(new ISafeRunnable() { + @Override public void run() throws Exception { listener.handleAtBufferEnd(); } + + @Override public void handleException(Throwable exception) { DebugUIPlugin.log(exception); } }); } } - } - - protected void handleScrollBarSelection() - { -// ignore event if there is pending set top index in the queue - if (!fTopIndexQueue.isEmpty()) + } + + protected void handleScrollBarSelection() { + // ignore event if there is pending set top index in the queue + if (!fTopIndexQueue.isEmpty()) { return; + } topIndexChanged(); } - - public void topIndexChanged() - { - if (DebugUIPlugin.DEBUG_DYNAMIC_LOADING) - { - MemorySegment a = (MemorySegment)getTable().getItem(getTable().getTopIndex()).getData(); + + public void topIndexChanged() { + if (DebugUIPlugin.DEBUG_DYNAMIC_LOADING) { + MemorySegment a = (MemorySegment) getTable().getItem(getTable().getTopIndex()).getData(); DebugUIPlugin.trace(Thread.currentThread().getName() + " " + this + " handle scroll bar moved: top index: " + a.getAddress().toString(16)); //$NON-NLS-1$ //$NON-NLS-2$ } @@ -311,64 +292,59 @@ abstract public class AsyncVirtualContentTableViewer extends AsynchronousTableVi notifyListenersAtBufferStart(); notifyListenersAtBufferEnd(); } - - protected void setTopIndexKey(Object key) - { + + protected void setTopIndexKey(Object key) { fTopIndexKey = key; } - - protected Object getTopIndexKey() - { + + protected Object getTopIndexKey() { return fTopIndexKey; } + @Override protected synchronized void preservingSelection(Runnable updateCode) { Object oldTopIndexKey = null; if (fPendingTopIndexKey == null) { // preserve selection oldTopIndexKey = getTopIndexKey(); - } - else - { + } else { oldTopIndexKey = fPendingTopIndexKey; } - + try { // perform the update updateCode.run(); - } finally { - if (oldTopIndexKey != null) - { + } finally { + if (oldTopIndexKey != null) { setTopIndex(oldTopIndexKey); } } } - - public void addPresentationErrorListener(IPresentationErrorListener errorListener) - { + + public void addPresentationErrorListener(IPresentationErrorListener errorListener) { fPresentationErrorListeners.add(errorListener); } - - public void removePresentationErrorListener(IPresentationErrorListener errorListener) - { + + public void removePresentationErrorListener(IPresentationErrorListener errorListener) { fPresentationErrorListeners.remove(errorListener); } - - private void notifyPresentationError(final IStatusMonitor monitor, final IStatus status) - { + + private void notifyPresentationError(final IStatusMonitor monitor, final IStatus status) { Object[] listeners = fPresentationErrorListeners.getListeners(); - + for (int i = 0; i < listeners.length; i++) { - - if (listeners[i] instanceof IPresentationErrorListener) - { - final IPresentationErrorListener listener = (IPresentationErrorListener)listeners[i]; + + if (listeners[i] instanceof IPresentationErrorListener) { + final IPresentationErrorListener listener = (IPresentationErrorListener) listeners[i]; SafeRunner.run(new ISafeRunnable() { + @Override public void run() throws Exception { listener.handlePresentationFailure(monitor, status); } + + @Override public void handleException(Throwable exception) { DebugUIPlugin.log(exception); } @@ -377,108 +353,104 @@ abstract public class AsyncVirtualContentTableViewer extends AsynchronousTableVi } } + @Override protected AsynchronousModel createModel() { return createVirtualContentTableModel(); } - + abstract protected AbstractVirtualContentTableModel createVirtualContentTableModel(); - - private void addKeyToQueue(Object topIndexKey) - { - synchronized(fTopIndexQueue){ + + private void addKeyToQueue(Object topIndexKey) { + synchronized (fTopIndexQueue) { if (DebugUIPlugin.DEBUG_DYNAMIC_LOADING) { - DebugUIPlugin.trace(" >>> add to top index queue: " + ((BigInteger)topIndexKey).toString(16)); //$NON-NLS-1$ + DebugUIPlugin.trace(" >>> add to top index queue: " + ((BigInteger) topIndexKey).toString(16)); //$NON-NLS-1$ } fTopIndexQueue.add(topIndexKey); } } - - private void removeKeyFromQueue(Object topIndexKey) - { - synchronized(fTopIndexQueue){ + + private void removeKeyFromQueue(Object topIndexKey) { + synchronized (fTopIndexQueue) { if (DebugUIPlugin.DEBUG_DYNAMIC_LOADING) { - DebugUIPlugin.trace(" >>> remove frome top index queue: " + ((BigInteger)topIndexKey).toString(16)); //$NON-NLS-1$ + DebugUIPlugin.trace(" >>> remove frome top index queue: " + ((BigInteger) topIndexKey).toString(16)); //$NON-NLS-1$ } fTopIndexQueue.remove(topIndexKey); } } - - public AbstractVirtualContentTableModel getVirtualContentModel() - { - if (getModel() instanceof AbstractVirtualContentTableModel) + + public AbstractVirtualContentTableModel getVirtualContentModel() { + if (getModel() instanceof AbstractVirtualContentTableModel) { return (AbstractVirtualContentTableModel) getModel(); + } return null; } - - private int getNumberOfVisibleLines() - { + + private int getNumberOfVisibleLines() { Table table = getTable(); int height = table.getSize().y; - + // when table is not yet created, height is zero - if (height == 0) - { + if (height == 0) { // make use of the table viewer to estimate table size height = table.getParent().getSize().y; } - + // height of border int border = table.getHeaderHeight(); - + // height of scroll bar int scroll = table.getHorizontalBar().getSize().y; - // height of table is table's area minus border and scroll bar height - height = height-border-scroll; + // height of table is table's area minus border and scroll bar height + height = height - border - scroll; // calculate number of visible lines int lineHeight = getMinTableItemHeight(table); - - int numberOfLines = height/lineHeight; - - if (numberOfLines <= 0) + + int numberOfLines = height / lineHeight; + + if (numberOfLines <= 0) { return 20; - - return numberOfLines; + } + + return numberOfLines; } - - private int getMinTableItemHeight(Table table){ - + + private int getMinTableItemHeight(Table table) { + // Hack to get around Linux GTK problem. // On Linux GTK, table items have variable item height as - // carriage returns are actually shown in a cell. Some rows will be - // taller than others. When calculating number of visible lines, we - // need to find the smallest table item height. Otherwise, the rendering - // underestimates the number of visible lines. As a result the rendering + // carriage returns are actually shown in a cell. Some rows will be + // taller than others. When calculating number of visible lines, we + // need to find the smallest table item height. Otherwise, the rendering + // underestimates the number of visible lines. As a result the rendering // will not be able to get more memory as needed. - if (MemoryViewUtil.isLinuxGTK()) - { + if (MemoryViewUtil.isLinuxGTK()) { // check each of the items and find the minimum TableItem[] items = table.getItems(); int minHeight = table.getItemHeight(); - for (int i=0; i<items.length; i++) - { - if (items[i].getData() != null) + for (int i = 0; i < items.length; i++) { + if (items[i].getData() != null) { minHeight = Math.min(items[i].getBounds(0).height, minHeight); + } } - + return minHeight; - + } return table.getItemHeight(); } + @Override protected void updateComplete(IStatusMonitor monitor) { super.updateComplete(monitor); attemptSetTopIndex(); - if (monitor instanceof ILabelRequestMonitor) - { + if (monitor instanceof ILabelRequestMonitor) { fPendingResizeColumns = attemptResizeColumnsToPreferredSize(); } } - - protected boolean hasPendingSetTopIndex() - { + + protected boolean hasPendingSetTopIndex() { return !fTopIndexQueue.isEmpty(); } |