/*
* 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.border;
import org.apache.isis.core.commons.debug.DebugBuilder;
import org.apache.isis.viewer.dnd.drawing.Canvas;
import org.apache.isis.viewer.dnd.drawing.Color;
import org.apache.isis.viewer.dnd.drawing.ColorsAndFonts;
import org.apache.isis.viewer.dnd.drawing.Location;
import org.apache.isis.viewer.dnd.drawing.Offset;
import org.apache.isis.viewer.dnd.drawing.Size;
import org.apache.isis.viewer.dnd.interaction.ViewDragImpl;
import org.apache.isis.viewer.dnd.view.DragEvent;
import org.apache.isis.viewer.dnd.view.DragStart;
import org.apache.isis.viewer.dnd.view.Toolkit;
import org.apache.isis.viewer.dnd.view.View;
import org.apache.isis.viewer.dnd.view.base.AbstractBorder;
import org.apache.isis.viewer.dnd.view.base.DragViewOutline;
/**
* A drag view border provides a line and handle that appears when the mouse
* moves over the contained view and allows the view to be dragged.
*/
public class DragViewBorder extends AbstractBorder {
private final int handleWidth = 14;
public DragViewBorder(final View wrappedView) {
this(1, wrappedView);
}
public DragViewBorder(final int size, final View wrappedView) {
super(wrappedView);
top = size;
left = size;
bottom = size;
right = size + handleWidth;
}
@Override
protected void debugDetails(final DebugBuilder debug) {
debug.append("SimpleBorder " + top + " pixels\n");
debug.append(" handle " + handleWidth + " pixels");
}
@Override
public DragEvent dragStart(final DragStart drag) {
if (overBorder(drag.getLocation())) {
final Location location = drag.getLocation();
final DragViewOutline dragOverlay = new DragViewOutline(getView());
return new ViewDragImpl(this, new Offset(location.getX(), location.getY()), dragOverlay);
} else {
return super.dragStart(drag);
}
}
@Override
public void entered() {
getState().setContentIdentified();
getState().setViewIdentified();
wrappedView.entered();
markDamaged();
}
@Override
public void exited() {
getState().clearObjectIdentified();
getState().clearViewIdentified();
wrappedView.exited();
markDamaged();
}
@Override
public void draw(final Canvas canvas) {
if (getState().isViewIdentified()) {
final Color color = Toolkit.getColor(ColorsAndFonts.COLOR_SECONDARY2);
final Size s = getSize();
final int width = s.getWidth();
for (int i = 0; i < left; i++) {
canvas.drawRectangle(i, i, width - 2 * i - 1, s.getHeight() - 2 * i - 1, color);
}
final int w2 = width - left - 2;
final int w3 = w2 - handleWidth;
for (int x = w2; x > w3; x -= 2) {
canvas.drawLine(x, top, x, s.getHeight() - top, color);
}
}
super.draw(canvas);
}
@Override
public String toString() {
return wrappedView.toString() + "/SimpleBorder";
}
}