/*
* 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.view.base;
import org.apache.isis.core.commons.util.ToString;
import org.apache.isis.viewer.dnd.drawing.Bounds;
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.Location;
import org.apache.isis.viewer.dnd.drawing.Size;
import org.apache.isis.viewer.dnd.drawing.Text;
import org.apache.isis.viewer.dnd.view.Content;
import org.apache.isis.viewer.dnd.view.Toolkit;
import org.apache.isis.viewer.dnd.view.View;
/*
* TODO why does this pass out the baseline, and then expect it back when doing the drawing?
*/
public class IconGraphic {
private final int baseline;
protected final Content content;
protected Image icon;
protected final int iconHeight;
private String lastIconName;
public IconGraphic(final View view, final int height, final int baseline) {
content = view.getContent();
iconHeight = height;
this.baseline = baseline;
}
public IconGraphic(final View view, final int height) {
content = view.getContent();
iconHeight = height;
baseline = height * 80 / 100;
}
public IconGraphic(final View view, final Text style) {
content = view.getContent();
iconHeight = style.getTextHeight();
this.baseline = style.getAscent();
}
public void draw(final Canvas canvas, final int x, final int baseline) {
final int y = baseline - this.baseline + 1;
if (Toolkit.debug) {
canvas.drawDebugOutline(new Bounds(new Location(x, y), getSize()), getBaseline(), Toolkit.getColor(ColorsAndFonts.COLOR_DEBUG_BOUNDS_DRAW));
}
final Image icon = icon();
if (icon == null) {
canvas.drawSolidOval(x + 1, y, iconHeight, iconHeight, Toolkit.getColor(ColorsAndFonts.COLOR_PRIMARY3));
} else {
canvas.drawImage(icon, x + 1, y);
}
}
public int getBaseline() {
return baseline;
}
public Size getSize() {
final Image icon = icon();
final int iconWidth = icon == null ? iconHeight : icon.getWidth();
return new Size(iconWidth + 2, iconHeight + 2);
}
protected Image icon() {
final String iconName = content.getIconName();
/*
* If the graphic is based on a name provided by the object then the
* icon could be changed at any time, so we won't lazily load it.
*/
if (icon != null && (iconName == null || iconName.equals(lastIconName))) {
return icon;
}
lastIconName = iconName;
if (iconName != null) {
icon = ImageFactory.getInstance().loadIcon(iconName, iconHeight, null);
}
if (icon == null) {
icon = content.getIconPicture(iconHeight);
}
if (icon == null) {
icon = ImageFactory.getInstance().loadDefaultIcon(iconHeight, null);
}
return icon;
}
@Override
public String toString() {
final ToString str = new ToString(this);
str.append("baseline", baseline);
str.append("icon", icon);
return str.toString();
}
}