/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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 org.apache.isis.viewer.dnd.toolbar;
import org.apache.isis.viewer.dnd.drawing.Location;
import org.apache.isis.viewer.dnd.drawing.Size;
import org.apache.isis.viewer.dnd.view.Content;
import org.apache.isis.viewer.dnd.view.View;
import org.apache.isis.viewer.dnd.view.ViewConstants;
import org.apache.isis.viewer.dnd.view.ViewSpecification;
import org.apache.isis.viewer.dnd.view.composite.CompositeView;
public class ToolbarView extends CompositeView {
public ToolbarView(final Content content, final ViewSpecification specification) {
super(content, specification);
}
@Override
protected void buildView() {
}
@Override
protected void doLayout(final Size maximumSize) {
int x = ViewConstants.HPADDING;
int y = 0;
int lineHeight = 0;
for (final View button : getSubviews()) {
final Size buttonSize = button.getRequiredSize(Size.createMax());
if (x + buttonSize.getWidth() >= maximumSize.getWidth()) {
x = ViewConstants.HPADDING;
y += lineHeight + ViewConstants.VPADDING;
lineHeight = 0;
}
button.setSize(buttonSize);
button.setLocation(new Location(x, y));
x += buttonSize.getWidth() + ViewConstants.HPADDING;
lineHeight = Math.max(lineHeight, buttonSize.getHeight());
}
}
@Override
public Size requiredSize(final Size availableSpace) {
int lineHeight = 0;
int lineWidth = ViewConstants.HPADDING;
final Size requiredSize = new Size();
for (final View button : getSubviews()) {
final Size buttonSize = button.getRequiredSize(availableSpace);
lineWidth += buttonSize.getWidth() + ViewConstants.HPADDING;
if (lineWidth >= availableSpace.getWidth()) {
lineWidth = ViewConstants.HPADDING;
requiredSize.extendHeight(lineHeight + ViewConstants.VPADDING);
lineHeight = 0;
}
lineHeight = Math.max(lineHeight, buttonSize.getHeight());
requiredSize.ensureWidth(lineWidth);
}
requiredSize.extendHeight(lineHeight + ViewConstants.VPADDING);
return requiredSize;
}
}