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/*
* Copyright 2011 Vaadin Ltd.
*
* Licensed 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 com.vaadin.client;
import com.google.gwt.user.client.Element;
/**
* Contains size information about a rendered container and its content area.
*
* @author Artur Signell
*
*/
public class RenderInformation {
private RenderSpace contentArea = new RenderSpace();
private Size renderedSize = new Size(-1, -1);
public void setContentAreaWidth(int w) {
contentArea.setWidth(w);
}
public void setContentAreaHeight(int h) {
contentArea.setHeight(h);
}
public RenderSpace getContentAreaSize() {
return contentArea;
}
public Size getRenderedSize() {
return renderedSize;
}
/**
* Update the size of the widget.
*
* @param widget
*
* @return true if the size has changed since last update
*/
public boolean updateSize(Element element) {
Size newSize = new Size(element.getOffsetWidth(),
element.getOffsetHeight());
if (newSize.equals(renderedSize)) {
return false;
} else {
renderedSize = newSize;
return true;
}
}
@Override
public String toString() {
return "RenderInformation [contentArea=" + contentArea
+ ",renderedSize=" + renderedSize + "]";
}
public static class FloatSize {
private float width, height;
public FloatSize(float width, float height) {
this.width = width;
this.height = height;
}
public float getWidth() {
return width;
}
public void setWidth(float width) {
this.width = width;
}
public float getHeight() {
return height;
}
public void setHeight(float height) {
this.height = height;
}
}
public static class Size {
private int width, height;
@Override
public boolean equals(Object obj) {
if (!(obj instanceof Size)) {
return false;
}
Size other = (Size) obj;
return other.width == width && other.height == height;
}
@Override
public int hashCode() {
return (width << 8) | height;
}
public Size() {
}
public Size(int width, int height) {
this.height = height;
this.width = width;
}
public int getWidth() {
return width;
}
public void setWidth(int width) {
this.width = width;
}
public int getHeight() {
return height;
}
public void setHeight(int height) {
this.height = height;
}
@Override
public String toString() {
return "Size [width=" + width + ",height=" + height + "]";
}
}
}
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