/*
* 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 java.awt.event.KeyEvent;
import org.apache.isis.viewer.dnd.drawing.Bounds;
import org.apache.isis.viewer.dnd.drawing.Canvas;
import org.apache.isis.viewer.dnd.drawing.Location;
import org.apache.isis.viewer.dnd.drawing.Size;
import org.apache.isis.viewer.dnd.view.ButtonAction;
import org.apache.isis.viewer.dnd.view.Click;
import org.apache.isis.viewer.dnd.view.KeyboardAction;
import org.apache.isis.viewer.dnd.view.View;
import org.apache.isis.viewer.dnd.view.ViewConstants;
import org.apache.isis.viewer.dnd.view.base.AbstractBorder;
import org.apache.isis.viewer.dnd.view.control.Button;
public class ButtonBorder extends AbstractBorder {
private static final int BUTTON_SPACING = 5;
private final View[] buttons;
private ButtonAction defaultAction;
public ButtonBorder(final ButtonAction[] actions, final View view) {
super(view);
buttons = new View[actions.length];
for (int i = 0; i < actions.length; i++) {
final ButtonAction action = actions[i];
buttons[i] = new Button(action, view);
if (action.isDefault()) {
defaultAction = action;
}
}
// space for: line & button with whitespace
bottom = 1 + ViewConstants.VPADDING + buttons[0].getRequiredSize(new Size()).getHeight() + ViewConstants.VPADDING;
}
@Override
public void draw(final Canvas canvas) {
// draw buttons
for (final View button : buttons) {
final Canvas buttonCanvas = canvas.createSubcanvas(button.getBounds());
button.draw(buttonCanvas);
final int buttonWidth = button.getSize().getWidth();
buttonCanvas.offset(BUTTON_SPACING + buttonWidth, 0);
}
// draw rest
super.draw(canvas);
}
@Override
public void firstClick(final Click click) {
final View button = overButton(click.getLocation());
if (button == null) {
super.firstClick(click);
} else {
button.firstClick(click);
}
}
public View[] getButtons() {
return buttons;
}
@Override
public Size getRequiredSize(final Size maximumSize) {
final Size size = super.getRequiredSize(maximumSize);
size.ensureWidth(totalButtonWidth());
size.extendWidth(BUTTON_SPACING * 2);
return size;
}
@Override
public View identify(final Location location) {
for (final View button : buttons) {
if (button.getBounds().contains(location)) {
return button;
}
}
return super.identify(location);
}
@Override
public void keyPressed(final KeyboardAction key) {
if (key.getKeyCode() == KeyEvent.VK_ENTER) {
if (defaultAction != null && defaultAction.disabled(getView()).isAllowed()) {
key.consume();
defaultAction.execute(getWorkspace(), getView(), getLocation());
}
}
super.keyPressed(key);
}
public void layout(final int width) {
int x = width / 2 - totalButtonWidth() / 2;
final int y = getSize().getHeight() - ViewConstants.VPADDING - buttons[0].getRequiredSize(new Size()).getHeight();
for (int i = 0; i < buttons.length; i++) {
buttons[i] = buttons[i];
buttons[i].setSize(buttons[i].getRequiredSize(new Size()));
buttons[i].setLocation(new Location(x, y));
x += buttons[i].getSize().getWidth();
x += BUTTON_SPACING;
}
}
@Override
public void mouseDown(final Click click) {
final View button = overButton(click.getLocation());
if (button == null) {
super.mouseDown(click);
} else {
button.mouseDown(click);
}
}
@Override
public void mouseUp(final Click click) {
final View button = overButton(click.getLocation());
if (button == null) {
super.mouseUp(click);
} else {
button.mouseUp(click);
}
}
/**
* Finds the action button under the pointer; returning null if none.
*/
private View overButton(final Location location) {
for (final View button : buttons) {
if (button.getBounds().contains(location)) {
return button;
}
}
return null;
}
@Override
public void secondClick(final Click click) {
final View button = overButton(click.getLocation());
if (button == null) {
super.secondClick(click);
}
}
@Override
public void setBounds(final Bounds bounds) {
super.setBounds(bounds);
layout(bounds.getWidth());
}
@Override
public void setSize(final Size size) {
super.setSize(size);
layout(size.getWidth());
}
@Override
public void thirdClick(final Click click) {
final View button = overButton(click.getLocation());
if (button == null) {
super.thirdClick(click);
}
}
private int totalButtonWidth() {
int totalButtonWidth = 0;
for (int i = 0; i < buttons.length; i++) {
final int buttonWidth = buttons[i].getRequiredSize(new Size()).getWidth();
totalButtonWidth += i > 0 ? BUTTON_SPACING : 0;
totalButtonWidth += buttonWidth;
}
return totalButtonWidth;
}
}