author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 00:10:53 +0300 | |
changeset 79 | 2f468c1958d0 |
parent 76 | 4ad59aaee882 |
permissions | -rw-r--r-- |
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package org.eclipse.swt.internal.qt; |
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|
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import org.eclipse.swt.SWT; |
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import org.eclipse.swt.SWTException; |
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import org.eclipse.swt.widgets.Display; |
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import org.eclipse.swt.widgets.Internal_PackageSupport; |
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import org.eclipse.swt.widgets.Widget; |
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|
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/** |
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* Base CSS Engine for eSWT. This engine recognizes only Qt |
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* <a href="http://qt.nokia.com/doc/4.6/stylesheet.html">stylesheet</a> syntax. |
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* |
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* CSS id selectors are supported by setting an id to the widget as follows. |
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* <pre> |
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* Button myButton = new Button(composite, SWT.PUSH); |
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* myButton.setData(WidgetConstant.CSS_ID,"myButtonId"); |
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* </pre> |
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* |
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* <p><b>NOTE:</b> This class is intended for internal use only.</p> |
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*/ |
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public final class BaseCSSEngine { |
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private static final String FILE_SCHEME = "file:///"; |
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private Display parent; |
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|
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/** |
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* Creates an engine instance. |
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* |
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* @exception IllegalArgumentException |
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* <ul> |
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* <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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* <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li> |
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* </ul> |
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* @exception SWTException |
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* <ul> |
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* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the |
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* thread that created the parent</li> |
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* </ul> |
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*/ |
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public BaseCSSEngine(Display display){ |
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if (display == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
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if (display.isDisposed ()) SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
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if (display.getThread() != Thread.currentThread()) SWT.error (SWT.ERROR_THREAD_INVALID_ACCESS); |
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this.parent = display; |
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} |
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|
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/** |
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* Applies the given string containing valid CSS to all the widgets created for the Display. |
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* CSS used in this method can not have any relative urls (for example for imports and images). |
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* Relative urls will not be resolved. |
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* |
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*<p><b>NOTE:</b> This is intended for internal use.</p> |
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* |
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* @param style |
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* @exception IllegalArgumentException |
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* <ul> |
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* <li>ERROR_NULL_ARGUMENT - if style is null</li> |
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* <li>ERROR_INVALID_ARGUMENT - if style is not a valid style string</li> |
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* </ul> |
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* @exception SWTException <ul> |
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* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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* </ul> |
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*/ |
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public void applyCSS( String style ){ |
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checkEngine(); |
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if( style == null ) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
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if( style.startsWith(FILE_SCHEME) ) SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
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OS.QApplication_setStyleSheet(style); |
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} |
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|
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/** |
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* Applies the given string containing valid CSS to the widget. |
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* CSS used in this method can not have any relative urls (for example for imports and images). |
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* Relative urls will not be resolved. |
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* |
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* <p><b>NOTE:</b> This is intended for internal use.</p> |
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* |
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* @param style |
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* @exception IllegalArgumentException |
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* <ul> |
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* <li>ERROR_NULL_ARGUMENT - if style is null</li> |
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* <li>ERROR_INVALID_ARGUMENT - if style is not a valid style string</li> |
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* </ul> |
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* @exception SWTException <ul> |
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* <li>ERROR_WIDGET_DISPOSED - if the receiver or the widget has been disposed</li> |
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* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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* </ul> |
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*/ |
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public void applyCSS(Widget widget, String style ){ |
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checkEngine(); |
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if( style == null ) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
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if( widget == null ) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
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if( widget.isDisposed() ) SWT.error( SWT.ERROR_WIDGET_DISPOSED); |
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if( style.startsWith(FILE_SCHEME) ) SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
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OS.QWidget_setStyleSheet(Internal_PackageSupport.handle(widget), style); |
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} |
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Revision: v2.1.22
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/** |
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Revision: v2.1.22
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* Loads a file containing valid CSS and applies to all the widgets for Display. |
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Revision: v2.1.22
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* This function bypasses java security checks for accessing the file. |
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Revision: v2.1.22
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* |
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* <p><b>NOTE:</b> This is intended for internal use.</p> |
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Revision: v2.1.22
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* |
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Revision: v2.1.22
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* @param style |
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Revision: v2.1.22
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* @exception IllegalArgumentException <ul> |
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* <li>ERROR_NULL_ARGUMENT - if the file name is null</li> |
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Revision: v2.1.22
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* </ul> |
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* @exception SWTException <ul> |
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Revision: v2.1.22
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* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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Revision: v2.1.22
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* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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Revision: v2.1.22
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* </ul> |
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Revision: v2.1.22
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*/ |
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Revision: v2.1.22
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public void loadCSS( String filename ){ |
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Revision: v2.1.22
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checkEngine(); |
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Revision: v2.1.22
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if (filename == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
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OS.QApplication_setStyleSheet(FILE_SCHEME+filename); |
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Revision: v2.1.22
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} |
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|
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/** |
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* Loads a file containing valid CSS and applies to the widget. |
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Revision: v2.1.22
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* This function bypasses Java security checks for accessing the file. |
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Revision: v2.1.22
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* |
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* <p><b>NOTE:</b> This is intended for internal use.</p> |
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Revision: v2.1.22
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* |
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* @param style |
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Revision: v2.1.22
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* @exception IllegalArgumentException |
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Revision: v2.1.22
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* <ul> |
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* <li>ERROR_NULL_ARGUMENT - if the file name is null</li> |
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* </ul> |
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* @exception SWTException <ul> |
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* <li>ERROR_WIDGET_DISPOSED - if the receiver or the widget has been disposed</li> |
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* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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* </ul> |
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*/ |
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public void loadCSS( Widget widget, String filename ){ |
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Revision: v2.1.22
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if (filename == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
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if( widget == null ) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
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Revision: v2.1.22
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if( widget.isDisposed() ) SWT.error( SWT.ERROR_WIDGET_DISPOSED); |
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OS.QWidget_setStyleSheet(Internal_PackageSupport.handle(widget), FILE_SCHEME+filename); |
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} |
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|
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/** |
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* Dispose the engine. |
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Revision: v2.1.22
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* @exception SWTException <ul> |
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* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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* </ul> |
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* |
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Revision: v2.1.22
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*/ |
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public void dispose(){ |
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if(parent != null) { |
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if (parent.getThread() != Thread.currentThread()) SWT.error (SWT.ERROR_THREAD_INVALID_ACCESS); |
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parent = null; |
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} |
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Revision: v2.1.22
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} |
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|
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Revision: v2.1.22
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private void checkEngine(){ |
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Revision: v2.1.22
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if ( parent == null || parent.isDisposed() ) SWT.error( SWT.ERROR_WIDGET_DISPOSED); |
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if ( parent.getThread() != Thread.currentThread() ) SWT.error (SWT.ERROR_THREAD_INVALID_ACCESS); |
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Revision: v2.1.22
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} |
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Revision: v2.1.22
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} |