org.eclipse.swt.internal.graphics.GCAdapter Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2010, 2011 EclipseSource 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 http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* EclipseSource - initial API and implementation
******************************************************************************/
package org.eclipse.swt.internal.graphics;
import java.util.LinkedList;
import java.util.List;
import org.eclipse.swt.internal.graphics.GCOperation.SetProperty;
public final class GCAdapter implements IGCAdapter {
private final List gcOperations;
private boolean forceRedraw;
public GCAdapter() {
gcOperations = new LinkedList();
}
public void addGCOperation( GCOperation operation ) {
gcOperations.add( operation );
}
public GCOperation[] getGCOperations() {
GCOperation[] result = new GCOperation[ gcOperations.size() ];
gcOperations.toArray( result );
return result;
}
public void clearGCOperations() {
gcOperations.clear();
}
public GCOperation[] getTrimmedGCOperations() {
int counter = 0;
boolean stop = false;
GCOperation[] operations = getGCOperations();
for( int i = operations.length - 1; i >= 0 && !stop; i-- ) {
if( isDrawOperation( operations[ i ] ) ) {
stop = true;
} else {
counter++;
}
}
GCOperation[] result = new GCOperation[ operations.length - counter ];
System.arraycopy( operations, 0, result, 0, result.length );
return result;
}
public void setForceRedraw( boolean forceRedraw ) {
this.forceRedraw = forceRedraw;
}
public boolean getForceRedraw() {
return forceRedraw;
}
private static boolean isDrawOperation( GCOperation operation ) {
return !( operation instanceof SetProperty );
}
}