Java Code Examples for org.eclipse.swt.widgets.ScrollBar#addListener()

/**
 * Add internal scrollbars listeners to this gallery.
 */
private void _addScrollBarsListeners() {
	// Vertical bar
	ScrollBar verticalBar = getVerticalBar();
	if (verticalBar != null) {
		verticalBar.addListener(SWT.Selection, event -> {
			if (vertical)
				scrollVertical();
		});
	}

	// Horizontal bar

	ScrollBar horizontalBar = getHorizontalBar();
	if (horizontalBar != null) {
		horizontalBar.addListener(SWT.Selection, event -> {
			if (!vertical)
				scrollHorizontal();
		});
	}

}
 

void installListeners() {
    // Listeners on this popup's table and scroll bar
    proposalTable.addListener(SWT.FocusOut, this);
    final ScrollBar scrollbar = proposalTable.getVerticalBar();
    if (scrollbar != null) {
        scrollbar.addListener(SWT.Selection, this);
    }

    // Listeners on this popup's shell
    getShell().addListener(SWT.Deactivate, this);
    getShell().addListener(SWT.Close, this);

    // Listeners on the target control
    control.addListener(SWT.MouseDoubleClick, this);
    control.addListener(SWT.MouseDown, this);
    control.addListener(SWT.Dispose, this);
    control.addListener(SWT.FocusOut, this);
    // Listeners on the target control's shell
    final Shell controlShell = control.getShell();
    controlShell.addListener(SWT.Move, this);
    controlShell.addListener(SWT.Resize, this);

}
 

@Override
	public boolean doCommand(ILayerCommand command) {
		boolean b = super.doCommand(command);
		if (command instanceof ClientAreaResizeCommand && command.convertToTargetLayer(this)) {
			ClientAreaResizeCommand clientAreaResizeCommand = (ClientAreaResizeCommand) command;
			final ScrollBar vBar = clientAreaResizeCommand.getScrollable().getVerticalBar(); // 垂直滚动条
			Listener[] listeners = vBar.getListeners(SWT.Selection);
			for (Listener listener : listeners) { // 清除默认的 Selection 监听（在类 ScrollBarHandlerTemplate 中添加的）
				vBar.removeListener(SWT.Selection, listener);
			}
			vBar.addListener(SWT.Selection, new Listener() {
				
				private ViewportLayer viewportLayer = HorizontalViewportLayer.this;
				private IUniqueIndexLayer scrollableLayer = viewportLayer.getScrollableLayer();
				
				public void handleEvent(Event event) {
					// 滚动滚动条前提交当前处于编辑状态的文本段
					HsMultiActiveCellEditor.commit(true);
					ScrollBar scrollBar = (ScrollBar) event.widget;
					
					int position = scrollableLayer.getRowPositionByY(scrollBar.getSelection());
					
					viewportLayer.invalidateVerticalStructure();
					viewportLayer.setOriginRowPosition(position);
					vBar.setIncrement(viewportLayer.getRowHeightByPosition(0));
					
//					HsMultiCellEditorControl.activeSourceAndTargetCell(XLIFFEditorImplWithNatTable.getCurrent());
				}
			});
		}

		return b;
	}
 

@Override
public boolean doCommand(ILayerCommand command) {
	boolean b = super.doCommand(command);
	if (command instanceof ClientAreaResizeCommand && command.convertToTargetLayer(this)) {
		ClientAreaResizeCommand clientAreaResizeCommand = (ClientAreaResizeCommand) command;
		final ScrollBar vBar = clientAreaResizeCommand.getScrollable().getVerticalBar(); // 垂直滚动条
		Listener[] listeners = vBar.getListeners(SWT.Selection);
		for (Listener listener : listeners) { // 清除默认的 Selection 监听（在类 ScrollBarHandlerTemplate 中添加的）
			vBar.removeListener(SWT.Selection, listener);
		}
		vBar.addListener(SWT.Selection, new Listener() {

			private ViewportLayer viewportLayer = HorizontalViewportLayer.this;
			private IUniqueIndexLayer scrollableLayer = viewportLayer.getScrollableLayer();

			public void handleEvent(Event event) {
				// 滚动滚动条前提交当前处于编辑状态的文本段
				if (TeActiveCellEditor.isValid())
					TeActiveCellEditor.commit();
				ScrollBar scrollBar = (ScrollBar) event.widget;

				int position = scrollableLayer.getRowPositionByY(scrollBar.getSelection());

				viewportLayer.invalidateVerticalStructure();
				viewportLayer.setOriginRowPosition(position);
				vBar.setIncrement(viewportLayer.getRowHeightByPosition(0));

			}
		});
	}

	return b;
}
 

@Override
public boolean doCommand(ILayerCommand command) {
	boolean b = super.doCommand(command);
	if (command instanceof ClientAreaResizeCommand && command.convertToTargetLayer(this)) {
		ClientAreaResizeCommand clientAreaResizeCommand = (ClientAreaResizeCommand) command;
		final ScrollBar vBar = clientAreaResizeCommand.getScrollable().getVerticalBar(); // 垂直滚动条
		Listener[] listeners = vBar.getListeners(SWT.Selection);
		for (Listener listener : listeners) { // 清除默认的 Selection 监听（在类 ScrollBarHandlerTemplate 中添加的）
			vBar.removeListener(SWT.Selection, listener);
		}
		vBar.addListener(SWT.Selection, new Listener() {
			
			private ViewportLayer viewportLayer = HorizontalViewportLayer.this;
			private IUniqueIndexLayer scrollableLayer = viewportLayer.getScrollableLayer();
			
			public void handleEvent(Event event) {
				// 滚动滚动条前提交当前处于编辑状态的文本段
				HsMultiActiveCellEditor.commit(true);
				ScrollBar scrollBar = (ScrollBar) event.widget;
				
				int position = scrollableLayer.getRowPositionByY(scrollBar.getSelection());
				
				viewportLayer.invalidateVerticalStructure();
				viewportLayer.setOriginRowPosition(position);
				vBar.setIncrement(viewportLayer.getRowHeightByPosition(0));
				
				HsMultiCellEditorControl.activeSourceAndTargetCell(XLIFFEditorImplWithNatTable.getCurrent());
			}
		});
	}

	return b;
}
 

public void init(IPageBookViewPage page, IConsole console)
{
	if (console.getType() != IDebugUIConstants.ID_PROCESS_CONSOLE_TYPE || !(page instanceof TextConsolePage))
	{
		return;
	}
	TextConsolePage consolePage = (TextConsolePage) page;
	TextConsoleViewer textViewer = consolePage.getViewer();
	if (!(textViewer instanceof IOConsoleViewer))
	{
		return;
	}
	final IOConsoleViewer viewer = (IOConsoleViewer) textViewer;
	scrollActionEnabled = viewer.isAutoScroll();
	final IToolBarManager toolBarManager = consolePage.getSite().getActionBars().getToolBarManager();
	IAction slAction = null;
	// Look for the ScrollLockAction
	for (IContributionItem item : toolBarManager.getItems())
	{
		if (item instanceof ActionContributionItem)
		{
			IAction action = ((ActionContributionItem) item).getAction();
			if (action instanceof ScrollLockAction)
			{
				slAction = action;
				break;
			}
		}
	}
	textWidget = viewer.getTextWidget();
	listener = new ConsoleListener(viewer, toolBarManager, slAction);

	// Based on Eclipse Snippet191 - Detects scrolling that were initiated by the user.
	textWidget.addListener(SWT.MouseDown, listener);
	textWidget.addListener(SWT.MouseMove, listener);
	textWidget.addListener(SWT.MouseUp, listener);
	textWidget.addListener(SWT.KeyDown, listener);
	textWidget.addListener(SWT.KeyUp, listener);
	ScrollBar vBar = textWidget.getVerticalBar();
	if (vBar != null)
	{
		vBar.addListener(SWT.Selection, listener);
	}
}