pjs/grendel/widgets/CollapsiblePanel.java

224 строки
6.5 KiB
Java
Исходник Обычный вид История

/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* This file has been contributed to Mozilla.
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Grendel mail/news client.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1997
* Netscape Communications Corporation. All Rights Reserved.
*
* Created: Jeff Galyan <jeffrey.galyan@sun.com>, 30 Dec 1998
*/
package grendel.widgets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.Insets;
import javax.swing.Box;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.border.Border;
import javax.swing.plaf.metal.MetalIconFactory;
import javax.swing.ImageIcon;
import grendel.ui.ToolBarLayout;
import grendel.widgets.Animation;
import grendel.widgets.Collapsible;
import grendel.widgets.Spring;
/**
* This is an implementation of the grendel.widgets.Collapsible interface,
* which provides the standard Communicator-style collapsing toolbar panel.
*
* @author Jeff Galyan
* @see Collapsible
*/
public class CollapsiblePanel extends JPanel implements Collapsible {
private boolean collapsed = false;
private Component myComponents[];
private int componentCount;
private final int VERTICAL = 0;
private final int HORIZONTAL = 1;
private GridBagConstraints constraints;
private Box aBox;
int width = 10, height = 50;
private ToolBarLayout layout;
/**
* Constructor
*/
public CollapsiblePanel(boolean isDoubleBuffered) {
super(isDoubleBuffered);
constraints = new GridBagConstraints();
constraints.ipadx = 0;
constraints.ipady = 0;
layout = new ToolBarLayout();
layout.setInsets(new Insets(0,0,0,0));
layout.setIPadX(0);
layout.setIPadY(0);
setLayout(layout);
constraints.insets = new Insets(0,0,0,0);
constraints.anchor = GridBagConstraints.NORTHWEST;
constraints.fill = GridBagConstraints.NONE;
CollapseButton collapseButton = new CollapseButton(VERTICAL);
add(collapseButton, constraints);
Dimension dim = collapseButton.getSize();
collapseButton.reshape(0,0,dim.width,dim.height);
// constraints.insets = new Insets(5,5,5,5);
constraints.anchor = GridBagConstraints.WEST;
collapsed = false;
revalidate();
}
/**
* Collapses the panel.
*/
public void collapse() {
GridBagConstraints constraints = new GridBagConstraints();
Component myComponents2[] = getComponents();
componentCount = getComponentCount();
myComponents = new Component[componentCount];
for (int i = 0; i < componentCount; i++) {
myComponents[i] = myComponents2[i];
remove(myComponents2[i]);
}
constraints.anchor = GridBagConstraints.NORTHWEST;
constraints.fill = GridBagConstraints.NONE;
add(new CollapseButton(HORIZONTAL), constraints);
Dimension dim2 = getSize();
setSize(new Dimension(dim2.width, 5));
constraints.fill = GridBagConstraints.HORIZONTAL;
constraints.weightx = 10.0;
constraints.gridwidth = GridBagConstraints.REMAINDER;
add(new Spring(), constraints);
revalidate();
collapsed = true;
}
/**
* Uncollapses the panel.
*/
public void expand() {
Dimension dim = new Dimension(height, width);
// layout.defaultConstraints.anchor = GridBagConstraints.WEST;
removeAll();
Dimension dim2 = getSize();
setSize(dim2.width, 40);
myComponents[0] = new CollapseButton(VERTICAL);
for (int i = 0; i < componentCount; i++) {
add(myComponents[i]);
}
revalidate();
collapsed = false;
}
/**
* Tells you whether this component is collapsible.
* @returns a boolean indicating this component is collapsible.
*/
public boolean isCollapsible() {
return collapsible;
}
/**
* Tells you whether this component is currently collapsed.
* Useful for checking the component's status.
* @returns true if this component is collapsed, false if it is not.
*/
public boolean isCollapsed() {
return collapsed;
}
class CollapseListener implements ActionListener {
public void actionPerformed(ActionEvent evt) {
if (isCollapsed() == true) {
expand();
} else {
collapse();
}
}
}
class CollapseButton extends JButton {
private ImageIcon collapseButtonIconVertical = new ImageIcon("widgets/images/collapseButton-vertical.gif", "regular collapseButton icon");
private ImageIcon collapseButtonVerticalRollover = new ImageIcon("widgets/images/collapseButton-vertical-rollover.gif", "vertical rollover icon");
private ImageIcon collapseButtonVerticalPressed = new ImageIcon("widgets/images/collapseButton-vertical-pressed.gif", "vertical pressed icon");
private ImageIcon collapseButtonIconHorizontal = new ImageIcon("widgets/images/collapseButton-horizontal.gif", "horizontal normal icon");
private ImageIcon collapseButtonHorizontalRollover = new ImageIcon("widgets/images/collapseButton-horizontal-rollover.gif", "horizontal rollover icon");
private ImageIcon collapseButtonHorizontalPressed = new ImageIcon("widgets/images/collapseButton-horizontal-pressed.gif", "horizontal pressed icon");
final int VERTICAL = 0;
final int HORIZONTAL = 1;
public CollapseButton(int orientation) {
super();
setRolloverEnabled(true);
setFocusPainted(false);
setDefaultCapable(false);
setBorder(null);
setBorderPainted(false);
setMargin(new Insets(0,0,0,0));
setToolTipText("Collapses/Expands the ToolBar");
if (orientation == VERTICAL) {
setIcon(collapseButtonIconVertical);
setRolloverIcon(collapseButtonVerticalRollover);
setPressedIcon(collapseButtonVerticalPressed);
} else {
setIcon(collapseButtonIconHorizontal);
setRolloverIcon(collapseButtonHorizontalRollover);
setPressedIcon(collapseButtonHorizontalPressed);
}
addActionListener(new CollapseListener());
}
}
}