Java 类org.eclipse.ui.internal.console.IOConsoleViewer 实例源码

private StyledText getWidget() {
    // we have to delay this, as the widget/viewer are not set up 
    // until after the console has finished all its delayed Jobs
    if (myWidget == null && myPage != null) {
        myViewer = myPage.getViewer();
        if (myViewer != null) {
            myWidget = myPage.getViewer().getTextWidget();
            myWidget.setEditable(false);
            // restricted: It is lame that we have to cast to internal class to remove this behavior
            if (myViewer instanceof IOConsoleViewer) {
                ((IOConsoleViewer)myViewer).setAutoScroll(false);
            }
        }
    }
    return myWidget;
}

/**
 * @param viewer
 * @param toolBarManager
 * @param scrollLockAction
 */
private ConsoleListener(IOConsoleViewer viewer, IToolBarManager toolBarManager, IAction scrollLockAction)
{
    this.viewer = viewer;
    this.toolBarManager = toolBarManager;
    this.scrollLockAction = scrollLockAction;
}

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);
    }
}