/*
* 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.icon;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.viewer.dnd.drawing.Canvas;
import org.apache.isis.viewer.dnd.drawing.ColorsAndFonts;
import org.apache.isis.viewer.dnd.drawing.Image;
import org.apache.isis.viewer.dnd.drawing.ImageFactory;
import org.apache.isis.viewer.dnd.drawing.Size;
import org.apache.isis.viewer.dnd.view.Content;
import org.apache.isis.viewer.dnd.view.Toolkit;
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.base.IconGraphic;
import org.apache.isis.viewer.dnd.view.base.ObjectView;
import org.apache.isis.viewer.dnd.view.text.ObjectTitleText;
import org.apache.isis.viewer.dnd.view.text.TitleText;
public class Icon extends ObjectView {
private IconGraphic icon;
private boolean isVertical;
private IconGraphic selectedGraphic;
private TitleText title;
private IconGraphic unselectedGraphic;
public Icon(final Content content, final ViewSpecification specification) {
super(content, specification);
}
@Override
public void draw(final Canvas canvas) {
super.draw(canvas);
ensureHasIcon();
int x = 0;
int y = 0;
icon.draw(canvas, x, getBaseline());
if (isVertical) {
final int w = title.getSize().getWidth();
x = (w > icon.getSize().getWidth()) ? x : getSize().getWidth() / 2 - w / 2;
y = icon.getSize().getHeight() + Toolkit.getText(ColorsAndFonts.TEXT_ICON).getAscent() + ViewConstants.VPADDING;
} else {
x += icon.getSize().getWidth();
x += ViewConstants.HPADDING;
y = icon.getBaseline();
}
final int maxWidth = getSize().getWidth() - x;
title.draw(canvas, x, y, maxWidth);
if (getState().isActive()) {
final Image busyImage = ImageFactory.getInstance().loadIcon("busy", 16, null);
canvas.drawImage(busyImage, icon.getSize().getWidth() - 16 - 4, 4);
}
}
private void ensureHasIcon() {
if (icon == null) {
// icon = selectedGraphic;
}
}
@Override
public void entered() {
icon = selectedGraphic;
markDamaged();
super.entered();
}
@Override
public void exited() {
icon = unselectedGraphic;
markDamaged();
super.exited();
}
@Override
public int getBaseline() {
ensureHasIcon();
return icon.getBaseline();
}
@Override
public Size getRequiredSize(final Size availableSpace) {
if (icon == null) {
// icon = unselectedGraphic;
}
final Size size = icon.getSize();
final Size textSize = title.getSize();
if (isVertical) {
size.extendHeight(ViewConstants.VPADDING + textSize.getHeight() + ViewConstants.VPADDING);
size.ensureWidth(textSize.getWidth());
} else {
size.extendWidth(ViewConstants.HPADDING);
size.extendWidth(textSize.getWidth());
}
return size;
}
/**
* Set up the graphic to be used when displaying the icon and the icon is
* selected.
*/
public void setSelectedGraphic(final IconGraphic selectedGraphic) {
this.selectedGraphic = selectedGraphic;
if (unselectedGraphic == null) {
unselectedGraphic = selectedGraphic;
icon = selectedGraphic;
}
}
/**
* Set up the title to be used when displaying the icon.
*/
public void setTitle(final ObjectTitleText text) {
title = text;
}
/**
* Set up the graphic to be used when displaying the icon and the icon is
* unselected. If this returns null the graphic will not be changed when the
* icon becomes unselected.
*/
public void setUnselectedGraphic(final IconGraphic unselectedGraphic) {
this.unselectedGraphic = unselectedGraphic;
icon = unselectedGraphic;
}
/**
* Specifies if the graphic should be aligned vertical above the label;
* otherwise aligned horizontally.
*/
public void setVertical(final boolean isVertical) {
this.isVertical = isVertical;
}
@Override
public void update(final ObjectAdapter object) {
final View p = getParent();
if (p != null) {
p.invalidateLayout();
}
}
}