/*******************************************************************************
* Copyright 2011 Google Inc. All Rights Reserved.
*
* 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
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*******************************************************************************/
package com.google.gdt.eclipse.designer.gwtext.model.layout;
import com.google.gdt.eclipse.designer.gwtext.model.layout.assistant.LayoutAssistant;
import com.google.gdt.eclipse.designer.gwtext.model.widgets.ContainerInfo;
import com.google.gdt.eclipse.designer.model.widgets.WidgetInfo;
import org.eclipse.wb.draw2d.geometry.Dimension;
import org.eclipse.wb.draw2d.geometry.Insets;
import org.eclipse.wb.draw2d.geometry.Point;
import org.eclipse.wb.draw2d.geometry.Rectangle;
import org.eclipse.wb.internal.core.model.JavaInfoUtils;
import org.eclipse.wb.internal.core.model.creation.CreationSupport;
import org.eclipse.wb.internal.core.model.description.ComponentDescription;
import org.eclipse.wb.internal.core.model.description.ToolkitDescription;
import org.eclipse.wb.internal.core.model.layout.absolute.IPreferenceConstants;
import org.eclipse.wb.internal.core.model.util.AbsoluteLayoutCreationFlowSupport;
import org.eclipse.wb.internal.core.utils.ast.AstEditor;
import org.eclipse.wb.internal.core.utils.check.Assert;
import org.eclipse.wb.internal.core.utils.reflect.ReflectionUtils;
/**
* Model for <code>com.gwtext.client.widgets.layout.AbsoluteLayout</code>.
*
* @author scheglov_ke
* @coverage GWTExt.model.layout
*/
public final class AbsoluteLayoutInfo extends AnchorLayoutInfo {
////////////////////////////////////////////////////////////////////////////
//
// Constructor
//
////////////////////////////////////////////////////////////////////////////
public AbsoluteLayoutInfo(AstEditor editor,
ComponentDescription description,
CreationSupport creationSupport) throws Exception {
super(editor, description, creationSupport);
}
////////////////////////////////////////////////////////////////////////////
//
// Initialize
//
////////////////////////////////////////////////////////////////////////////
@Override
protected void initializeLayoutAssistant() {
new LayoutAssistant(this);
}
////////////////////////////////////////////////////////////////////////////
//
// Layout notifications
//
////////////////////////////////////////////////////////////////////////////
@Override
public void onSet() throws Exception {
super.onSet();
for (WidgetInfo widget : getContainer().getChildrenWidgets()) {
Rectangle bounds = widget.getModelBounds();
command_BOUNDS(widget, bounds.getLocation(), bounds.getSize());
}
}
@Override
protected void onDelete() throws Exception {
super.onDelete();
for (WidgetInfo widget : getContainer().getChildrenWidgets()) {
widget.getSizeSupport().setSize(null);
}
}
////////////////////////////////////////////////////////////////////////////
//
// Components/constraints
//
////////////////////////////////////////////////////////////////////////////
@Override
protected Object getDefaultVirtualDataObject(WidgetInfo widget) throws Exception {
ClassLoader classLoader = JavaInfoUtils.getClassLoader(this);
Class<?> dataClass =
classLoader.loadClass("com.gwtext.client.widgets.layout.AbsoluteLayoutData");
return ReflectionUtils.getConstructor(dataClass, int.class, int.class).newInstance(10, 10);
}
/**
* @return {@link AbsoluteLayoutDataInfo} association with given {@link WidgetInfo}.
*/
public static AbsoluteLayoutDataInfo getAbsoluteData(WidgetInfo widget) {
return (AbsoluteLayoutDataInfo) getLayoutData(widget);
}
////////////////////////////////////////////////////////////////////////////
//
// Commands
//
////////////////////////////////////////////////////////////////////////////
/**
* Performs "move" or "resize" operation.
*
* @param widget
* the {@link WidgetInfo} which modifications applies to.
* @param location
* the {@link Point} of new location of widget. May be <code>null</code>.
* @param size
* the {@link Dimension} of new size of widget. May be <code>null</code>.
*/
public void command_BOUNDS(WidgetInfo widget, Point location, Dimension size) throws Exception {
ContainerInfo container = getContainer();
Assert.isTrue(container.getChildren().contains(widget), "%s is not child of %s.", widget, this);
if (location != null) {
AbsoluteLayoutDataInfo absoluteData = getAbsoluteData(widget);
absoluteData.materialize();
absoluteData.getPropertyByTitle("x").setValue(location.x);
absoluteData.getPropertyByTitle("y").setValue(location.y);
}
if (size != null) {
widget.getSizeSupport().setSize(size);
}
// check creation flow
if (location != null && useCreationFlow()) {
// force set new translated bounds
Insets insets = container.getClientAreaInsets();
Point location_ = location.getCopy();
location_.translate(insets);
AbsoluteLayoutCreationFlowSupport.checkBounds(widget, location_, size);
// apply creation flow
AbsoluteLayoutCreationFlowSupport.apply(
container,
container.getChildrenWidgets(),
widget,
location,
size);
}
}
private boolean useCreationFlow() {
return getToolkit().getPreferences().getBoolean(IPreferenceConstants.P_CREATION_FLOW);
}
private ToolkitDescription getToolkit() {
return getDescription().getToolkit();
}
}