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/*
* Copyright (c) 2002 and later by MH Software-Entwicklung. All Rights Reserved.
*
* JTattoo is multiple licensed. If your are an open source developer you can use
* it under the terms and conditions of the GNU General Public License version 2.0
* or later as published by the Free Software Foundation.
*
* see: gpl-2.0.txt
*
* If you pay for a license you will become a registered user who could use the
* software under the terms and conditions of the GNU Lesser General Public License
* version 2.0 or later with classpath exception as published by the Free Software
* Foundation.
*
* see: lgpl-2.0.txt
* see: classpath-exception.txt
*
* Registered users could also use JTattoo under the terms and conditions of the
* Apache License, Version 2.0 as published by the Apache Software Foundation.
*
* see: APACHE-LICENSE-2.0.txt
*/
package com.jtattoo.plaf;
import java.awt.*;
import java.awt.event.InputEvent;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.awt.image.BufferedImage;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.*;
import javax.swing.event.MouseInputListener;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.basic.BasicRootPaneUI;
/**
* This source is a modified copy of javax.swing.plaf.metal.MetalRootPaneUI Provides the base look and feel
* implementation of RootPaneUI.
*
* BaseRootPaneUI provides support for the windowDecorationStyle property of
* JRootPane. BaseRootPaneUI does this by way of installing a custom
* LayoutManager, a private Component to render the appropriate widgets, and a private
* Border. The LayoutManager is always installed, regardless of the value of the
* windowDecorationStyle property, but the Border and Component are only
* installed/added if the windowDecorationStyle is other than JRootPane.NONE.
*
* Warning:
* Serialized objects of this class will not be compatible with future Swing releases. The current serialization support
* is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4,
* support for long term storage of all JavaBeans TM
* has been added to the java.beans package. Please see {@link java.beans.XMLEncoder}.
*
* @version 1.20 04/27/04
* @author Terry Kellerman
* @author Michael Hagen
* @since 1.4
*/
public class BaseRootPaneUI extends BasicRootPaneUI {
// Konstanten aus javax.swing.JRootPane damit Attribute aus Java 1.4 sich mit Java 1.3 uebersetzen lassen
public static final int NONE = 0;
public static final int FRAME = 1;
public static final int PLAIN_DIALOG = 2;
public static final int INFORMATION_DIALOG = 3;
public static final int ERROR_DIALOG = 4;
public static final int COLOR_CHOOSER_DIALOG = 5;
public static final int FILE_CHOOSER_DIALOG = 6;
public static final int QUESTION_DIALOG = 7;
public static final int WARNING_DIALOG = 8;
// Konstanten aus java.awt.Frame damit Attribute aus Java 1.4 sich mit Java 1.3 uebersetzen lassen
public static final int MAXIMIZED_HORIZ = 2;
public static final int MAXIMIZED_VERT = 4;
public static final int MAXIMIZED_BOTH = MAXIMIZED_VERT | MAXIMIZED_HORIZ;
private static final String[] borderKeys = new String[]{
null,
"RootPane.frameBorder",
"RootPane.plainDialogBorder",
"RootPane.informationDialogBorder",
"RootPane.errorDialogBorder",
"RootPane.colorChooserDialogBorder",
"RootPane.fileChooserDialogBorder",
"RootPane.questionDialogBorder",
"RootPane.warningDialogBorder"
};
/**
* The minimum/maximum size of a Window
*/
private static final Dimension MINIMUM_SIZE = new Dimension(120, 80);
private static final Dimension MAXIMUM_SIZE = Toolkit.getDefaultToolkit().getScreenSize();
/**
* The amount of space (in pixels) that the cursor is changed on.
*/
private static final int CORNER_DRAG_WIDTH = 16;
/**
* Region from edges that dragging is active from.
*/
private static final int BORDER_DRAG_THICKNESS = 5;
/**
* Window the JRootPane is in.
*/
private Window window;
/**
* JComponent providing window decorations. This will be null if not providing window decorations.
*/
private JComponent titlePane;
/**
* MouseInputListener that is added to the parent Window the JRootPane is
* contained in.
*/
private MouseInputListener mouseInputListener;
/**
* WindowListener that is added to the parent Window the JRootPane is
* contained in.
*/
private WindowListener windowListener;
/**
* WindowListener that is added to the parent Window the JRootPane is
* contained in.
*/
private PropertyChangeListener propertyChangeListener;
/**
* The LayoutManager that is set on the JRootPane.
*/
private LayoutManager layoutManager;
/**
* LayoutManager of the JRootPane before we replaced it.
*/
private LayoutManager savedOldLayout;
/**
* JRootPane providing the look and feel for.
*/
private JRootPane root;
private Cursor savedCursor = null;
/**
* Cursor used to track the cursor set by the user. This is initially
* Cursor.DEFAULT_CURSOR.
*/
/**
* Creates a UI for a JRootPane.
*
* @param c the JRootPane the RootPaneUI will be created for
* @return the RootPaneUI implementation for the passed in JRootPane
*/
public static ComponentUI createUI(JComponent c) {
return new BaseRootPaneUI();
}
@Override
public void installUI(JComponent c) {
super.installUI(c);
root = (JRootPane) c;
if (root.getWindowDecorationStyle() != NONE) {
installClientDecorations(root);
}
}
@Override
public void uninstallUI(JComponent c) {
super.uninstallUI(c);
uninstallClientDecorations(root);
layoutManager = null;
mouseInputListener = null;
root = null;
}
@Override
protected void installListeners(JRootPane root) {
super.installListeners(root);
if (root.getWindowDecorationStyle() == NONE) {
propertyChangeListener = new PropertyChangeListener() {
@Override
public void propertyChange(PropertyChangeEvent evt) {
if ("ancestor".equals(evt.getPropertyName())) {
if (getRootPane() != null && getRootPane().getParent() instanceof Window) {
window = (Window) getRootPane().getParent();
windowListener = new WindowAdapter() {
@Override
public void windowActivated(WindowEvent e) {
if (getRootPane() != null) {
getRootPane().repaint();
}
}
@Override
public void windowDeactivated(WindowEvent e) {
if (getRootPane() != null) {
getRootPane().repaint();
}
}
};
window.addWindowListener(windowListener);
}
}
}
};
root.addPropertyChangeListener(propertyChangeListener);
}
}
@Override
protected void uninstallListeners(JRootPane root) {
super.uninstallListeners(root);
if (root.getWindowDecorationStyle() == NONE) {
if (root.getParent() instanceof Window && windowListener != null) {
window = (Window) root.getParent();
window.removeWindowListener(windowListener);
}
root.removePropertyChangeListener(propertyChangeListener);
}
}
public void installBorder(JRootPane root) {
int style = root.getWindowDecorationStyle();
if (style == NONE) {
LookAndFeel.uninstallBorder(root);
} else {
LookAndFeel.installBorder(root, borderKeys[style]);
}
}
/**
* Removes any border that may have been installed.
*
* @param root The root pane
*/
public void uninstallBorder(JRootPane root) {
LookAndFeel.uninstallBorder(root);
}
/**
* Installs the necessary Listeners on the parent Window, if there is one.
*
* This takes the parent so that cleanup can be done from removeNotify, at which point the parent
* hasn't been reset yet.
*
* @param root The root pane
* @param parent The parent of the JRootPane
*/
public void installWindowListeners(JRootPane root, Component parent) {
if (parent instanceof Window) {
window = (Window) parent;
} else {
window = SwingUtilities.getWindowAncestor(parent);
}
if (window != null) {
if (mouseInputListener == null) {
mouseInputListener = createWindowMouseInputListener(root);
}
window.addMouseListener(mouseInputListener);
window.addMouseMotionListener(mouseInputListener);
}
}
/**
* Uninstalls the necessary Listeners on the Window the Listeners were last installed on.
*
* @param root The root pane
*/
public void uninstallWindowListeners(JRootPane root) {
if (window != null) {
window.removeMouseListener(mouseInputListener);
window.removeMouseMotionListener(mouseInputListener);
}
}
/**
* Installs the appropriate LayoutManager on the JRootPane to render the window decorations.
*
* @param root The root pane
*/
public void installLayout(JRootPane root) {
if (layoutManager == null) {
layoutManager = createLayoutManager();
}
savedOldLayout = root.getLayout();
root.setLayout(layoutManager);
}
public void uninstallLayout(JRootPane root) {
if (savedOldLayout != null) {
root.setLayout(savedOldLayout);
savedOldLayout = null;
}
}
public void installClientDecorations(JRootPane root) {
installBorder(root);
if (titlePane == null) {
setTitlePane(root, createTitlePane(root));
}
installWindowListeners(root, root.getParent());
installLayout(root);
if (window != null) {
//savedCursor = window.getCursor();
root.revalidate();
root.repaint();
}
}
public void uninstallClientDecorations(JRootPane root) {
uninstallBorder(root);
uninstallWindowListeners(root);
setTitlePane(root, null);
uninstallLayout(root);
int style = root.getWindowDecorationStyle();
if (style == NONE) {
root.repaint();
root.revalidate();
}
// Reset the cursor, as we may have changed it to a resize cursor
if (window != null && savedCursor != null) {
window.setCursor(savedCursor);
savedCursor = null;
}
window = null;
}
/**
* Returns the JComponent to render the window decoration style.
*
* @param root The root pane
* @return The title pane
*/
public JComponent createTitlePane(JRootPane root) {
return new BaseTitlePane(root, this);
}
/**
* Returns a MouseListener that will be added to the Window containing the
* JRootPane.
*
* @param root The root pane
* @return The mouse listener
*/
public MouseInputListener createWindowMouseInputListener(JRootPane root) {
return new MouseInputHandler();
}
/**
* Returns a LayoutManager that will be set on the JRootPane.
*
* @return The layout manager
*/
public LayoutManager createLayoutManager() {
return new BaseRootLayout();
}
/**
* Sets the window title pane -- the JComponent used to provide a plaf a way to override the native operating
* system's window title pane with one whose look and feel are controlled by the plaf. The plaf creates and sets
* this value; the default is null, implying a native operating system window title pane.
*
* @param root the JRootPane where to set the title pane
* @param titlePane the JComponent to use for the window title pane.
*/
public void setTitlePane(JRootPane root, JComponent titlePane) {
JComponent oldTitlePane = internalGetTitlePane();
if ((oldTitlePane == null && titlePane == null) || (oldTitlePane != null && oldTitlePane.equals(titlePane))) {
return;
}
JLayeredPane layeredPane = root.getLayeredPane();
if (oldTitlePane != null) {
oldTitlePane.setVisible(false);
layeredPane.remove(oldTitlePane);
}
if (titlePane != null) {
layeredPane.add(titlePane, JLayeredPane.FRAME_CONTENT_LAYER);
titlePane.setVisible(true);
}
this.titlePane = titlePane;
}
/**
* Returns the BaseTitlePane rendering the title pane. If this returns null, it implies there is no need
* to render window decorations.
*
* @return the current window title pane, or null
* @see #setTitlePane
*/
public BaseTitlePane getTitlePane() {
if (titlePane instanceof BaseTitlePane) {
return (BaseTitlePane)titlePane;
}
return null;
}
private JComponent internalGetTitlePane() {
return titlePane;
}
public JRootPane getRootPane() {
return root;
}
@Override
public void propertyChange(PropertyChangeEvent e) {
super.propertyChange(e);
String propertyName = e.getPropertyName();
JRootPane rp = (JRootPane) e.getSource();
if ("windowDecorationStyle".equals(propertyName)) {
int style = rp.getWindowDecorationStyle();
// This is potentially more than needs to be done,
// but it rarely happens and makes the install/uninstall process
// simpler. BaseTitlePane also assumes it will be recreated if
// the decoration style changes.
uninstallClientDecorations(rp);
if (style != NONE) {
installClientDecorations(rp);
}
} else if ("ancestor".equals(propertyName)) {
uninstallWindowListeners(rp);
if (rp.getWindowDecorationStyle() != NONE) {
installWindowListeners(rp, rp.getParent());
}
}
}
private boolean isDynamicLayout() {
return AbstractLookAndFeel.getTheme().isDynamicLayout();
}
//------------------------------------------------------------------------------
private static class BaseRootLayout implements LayoutManager2 {
/**
* Returns the amount of space the layout would like to have.
*
* @param the Container for which this layout manager is being used
* @return a Dimension object containing the layout's preferred size
*/
@Override
public Dimension preferredLayoutSize(Container parent) {
Dimension cpd, mbd, tpd;
int cpWidth = 0;
int cpHeight = 0;
int mbWidth = 0;
int mbHeight = 0;
int tpWidth = 0;
Insets i = parent.getInsets();
JRootPane root = (JRootPane) parent;
if (root.getContentPane() != null) {
cpd = root.getContentPane().getPreferredSize();
} else {
cpd = root.getSize();
}
if (cpd != null) {
cpWidth = cpd.width;
cpHeight = cpd.height;
}
if (root.getJMenuBar() != null) {
mbd = root.getJMenuBar().getPreferredSize();
if (mbd != null) {
mbWidth = mbd.width;
mbHeight = mbd.height;
}
}
if (root.getWindowDecorationStyle() != NONE && (root.getUI() instanceof BaseRootPaneUI)) {
JComponent titlePane = ((BaseRootPaneUI) root.getUI()).internalGetTitlePane();
if (titlePane != null) {
tpd = titlePane.getPreferredSize();
if (tpd != null) {
tpWidth = tpd.width;
}
}
}
return new Dimension(Math.max(Math.max(cpWidth, mbWidth), tpWidth) + i.left + i.right, cpHeight + mbHeight + tpWidth + i.top + i.bottom);
}
/**
* Returns the minimum amount of space the layout needs.
*
* @param the Container for which this layout manager is being used
* @return a Dimension object containing the layout's minimum size
*/
@Override
public Dimension minimumLayoutSize(Container parent) {
return MINIMUM_SIZE;
}
/**
* Returns the maximum amount of space the layout can use.
*
* @param the Container for which this layout manager is being used
* @return a Dimension object containing the layout's maximum size
*/
@Override
public Dimension maximumLayoutSize(Container target) {
return MAXIMUM_SIZE;
}
/**
* Instructs the layout manager to perform the layout for the specified container.
*
* @param the Container for which this layout manager is being used
*/
@Override
public void layoutContainer(Container parent) {
JRootPane root = (JRootPane) parent;
Rectangle b = root.getBounds();
Insets i = root.getInsets();
int nextY = 0;
int w = b.width - i.right - i.left;
int h = b.height - i.top - i.bottom;
if (root.getLayeredPane() != null) {
root.getLayeredPane().setBounds(i.left, i.top, w, h);
}
if (root.getGlassPane() != null) {
if (root.getWindowDecorationStyle() != NONE && (root.getUI() instanceof BaseRootPaneUI)) {
JComponent titlePane = ((BaseRootPaneUI) root.getUI()).internalGetTitlePane();
int titleHeight = 0;
if (titlePane != null) {
titleHeight = titlePane.getSize().height;
}
root.getGlassPane().setBounds(i.left, i.top + titleHeight, w, h - titleHeight);
} else {
root.getGlassPane().setBounds(i.left, i.top, w, h);
}
}
// Note: This is laying out the children in the layeredPane,
// technically, these are not our children.
if (root.getWindowDecorationStyle() != NONE && (root.getUI() instanceof BaseRootPaneUI)) {
JComponent titlePane = ((BaseRootPaneUI) root.getUI()).internalGetTitlePane();
if (titlePane != null) {
Dimension tpd = titlePane.getPreferredSize();
if (tpd != null) {
int tpHeight = tpd.height;
titlePane.setBounds(0, 0, w, tpHeight);
nextY += tpHeight;
}
}
}
if (root.getJMenuBar() != null) {
Dimension mbd = root.getJMenuBar().getPreferredSize();
root.getJMenuBar().setBounds(0, nextY, w, mbd.height);
nextY += mbd.height;
}
if (root.getContentPane() != null) {
root.getContentPane().setBounds(0, nextY, w, h < nextY ? 0 : h - nextY);
}
}
@Override
public void addLayoutComponent(String name, Component comp) {
}
@Override
public void removeLayoutComponent(Component comp) {
}
@Override
public void addLayoutComponent(Component comp, Object constraints) {
}
@Override
public float getLayoutAlignmentX(Container target) {
return 0.0f;
}
@Override
public float getLayoutAlignmentY(Container target) {
return 0.0f;
}
@Override
public void invalidateLayout(Container target) {
}
}
/**
* Maps from positions to cursor type. Refer to calculateCorner and calculatePosition for details of this.
*/
private static final int[] cursorMapping = new int[]{
Cursor.NW_RESIZE_CURSOR, Cursor.NW_RESIZE_CURSOR, Cursor.N_RESIZE_CURSOR,
Cursor.NE_RESIZE_CURSOR, Cursor.NE_RESIZE_CURSOR,
Cursor.NW_RESIZE_CURSOR, 0, 0, 0, Cursor.NE_RESIZE_CURSOR,
Cursor.W_RESIZE_CURSOR, 0, 0, 0, Cursor.E_RESIZE_CURSOR,
Cursor.SW_RESIZE_CURSOR, 0, 0, 0, Cursor.SE_RESIZE_CURSOR,
Cursor.SW_RESIZE_CURSOR, Cursor.SW_RESIZE_CURSOR, Cursor.S_RESIZE_CURSOR,
Cursor.SE_RESIZE_CURSOR, Cursor.SE_RESIZE_CURSOR
};
//------------------------------------------------------------------------------
/**
* MouseInputHandler is responsible for handling resize/moving of the Window. It sets the cursor directly on the
* Window when then mouse moves over a hot spot.
*/
private class MouseInputHandler implements MouseInputListener {
/**
* Set to true if the drag operation is moving the window.
*/
private boolean isMovingWindow;
/**
* Set to true if the drag operation is resizing the window.
*/
private boolean isResizingWindow;
/**
* Used to determine the corner the resize is occuring from.
*/
private int dragCursor;
/**
* X location the mouse went down on for a drag operation.
*/
private int dragOffsetX;
/**
* Y location the mouse went down on for a drag operation.
*/
private int dragOffsetY;
/**
* Width of the window when the drag started.
*/
private int dragWidth;
/**
* Height of the window when the drag started.
*/
private int dragHeight;
private Container savedContentPane = null;
private ResizingPanel resizingPanel = null;
@Override
public void mousePressed(MouseEvent ev) {
Window w = (Window) ev.getSource();
if (w instanceof Window) {
JRootPane root = getRootPane();
if (root.getWindowDecorationStyle() == NONE) {
return;
}
w.toFront();
Point dragWindowOffset = ev.getPoint();
Point convertedDragWindowOffset = SwingUtilities.convertPoint(w, dragWindowOffset, internalGetTitlePane());
Frame f = null;
Dialog d = null;
if (w instanceof Frame) {
f = (Frame) w;
} else if (w instanceof Dialog) {
d = (Dialog) w;
}
int frameState = (f != null) ? f.getExtendedState() : 0;
if (internalGetTitlePane() != null && internalGetTitlePane().contains(convertedDragWindowOffset)) {
if ((f != null && ((frameState & BaseRootPaneUI.MAXIMIZED_BOTH) == 0) || (d != null))
&& dragWindowOffset.y >= BORDER_DRAG_THICKNESS
&& dragWindowOffset.x >= BORDER_DRAG_THICKNESS
&& dragWindowOffset.x < w.getWidth() - BORDER_DRAG_THICKNESS) {
isMovingWindow = true;
dragOffsetX = dragWindowOffset.x;
dragOffsetY = dragWindowOffset.y;
if (window instanceof JFrame) {
JFrame frame = (JFrame) window;
for (PropertyChangeListener pcl : frame.getPropertyChangeListeners()) {
pcl.propertyChange(new PropertyChangeEvent(window, "windowMoving", Boolean.FALSE, Boolean.FALSE));
}
}
if (window instanceof JDialog) {
JDialog dialog = (JDialog) window;
for (PropertyChangeListener pcl : dialog.getPropertyChangeListeners()) {
pcl.propertyChange(new PropertyChangeEvent(window, "windowMoving", Boolean.FALSE, Boolean.FALSE));
}
}
}
} else if (f != null
&& f.isResizable()
&& ((frameState & BaseRootPaneUI.MAXIMIZED_BOTH) == 0)
|| (d != null && d.isResizable())) {
isResizingWindow = true;
if (!isDynamicLayout()) {
savedContentPane = getRootPane().getContentPane();
GraphicsConfiguration gc = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration();
BufferedImage bi = gc.createCompatibleImage(savedContentPane.getWidth(), savedContentPane.getHeight());
savedContentPane.paint(bi.getGraphics());
resizingPanel = new ResizingPanel(bi);
getRootPane().setContentPane(resizingPanel);
}
dragOffsetX = dragWindowOffset.x;
dragOffsetY = dragWindowOffset.y;
dragWidth = w.getWidth();
dragHeight = w.getHeight();
dragCursor = getCursor(calculateCorner(w, dragWindowOffset.x, dragWindowOffset.y));
if (window instanceof JFrame) {
JFrame frame = (JFrame) window;
for (PropertyChangeListener pcl : frame.getPropertyChangeListeners()) {
pcl.propertyChange(new PropertyChangeEvent(window, "windowResizing", Boolean.FALSE, Boolean.FALSE));
}
}
if (window instanceof JDialog) {
JDialog dialog = (JDialog) window;
for (PropertyChangeListener pcl : dialog.getPropertyChangeListeners()) {
pcl.propertyChange(new PropertyChangeEvent(window, "windowResizing", Boolean.FALSE, Boolean.FALSE));
}
}
}
}
}
@Override
public void mouseReleased(MouseEvent ev) {
if (ev.getSource() instanceof Window) {
Window w = (Window) ev.getSource();
if (w != null) {
if (!isDynamicLayout() && isResizingWindow) {
getRootPane().setContentPane(savedContentPane);
getRootPane().updateUI();
resizingPanel = null;
} else if (dragCursor != 0 && !window.isValid()) {
// Some Window systems validate as you resize, others won't,
// thus the check for validity before repainting.
w.validate();
getRootPane().repaint();
}
if (window instanceof JFrame) {
JFrame frame = (JFrame) window;
for (PropertyChangeListener pcl : frame.getPropertyChangeListeners()) {
if (isMovingWindow) {
pcl.propertyChange(new PropertyChangeEvent(window, "windowMoved", Boolean.FALSE, Boolean.FALSE));
} else {
pcl.propertyChange(new PropertyChangeEvent(window, "windowResized", Boolean.FALSE, Boolean.FALSE));
}
}
}
if (window instanceof JDialog) {
JDialog dialog = (JDialog) window;
for (PropertyChangeListener pcl : dialog.getPropertyChangeListeners()) {
if (isMovingWindow) {
pcl.propertyChange(new PropertyChangeEvent(window, "windowMoved", Boolean.FALSE, Boolean.FALSE));
} else {
pcl.propertyChange(new PropertyChangeEvent(window, "windowResized", Boolean.FALSE, Boolean.FALSE));
}
}
}
}
isMovingWindow = false;
isResizingWindow = false;
dragCursor = 0;
}
}
@Override
public void mouseMoved(MouseEvent ev) {
if (ev.getSource() instanceof Window) {
JRootPane root = getRootPane();
if (root.getWindowDecorationStyle() == NONE) {
return;
}
Window w = (Window) ev.getSource();
Frame f = null;
Dialog d = null;
if (w instanceof Frame) {
f = (Frame) w;
} else if (w instanceof Dialog) {
d = (Dialog) w;
}
// Update the cursor
int cursor = getCursor(calculateCorner(w, ev.getX(), ev.getY()));
if (!isMovingWindow && cursor != 0 && ((f != null && (f.isResizable() && (f.getExtendedState() & BaseRootPaneUI.MAXIMIZED_BOTH) == 0)) || (d != null && d.isResizable()))) {
if (savedCursor == null) {
savedCursor = w.getCursor();
}
w.setCursor(Cursor.getPredefinedCursor(cursor));
} else if (savedCursor != null) {
w.setCursor(savedCursor);
savedCursor = null;
}
}
}
private void adjust(Rectangle bounds, Dimension min, int deltaX, int deltaY, int deltaWidth, int deltaHeight) {
bounds.x += deltaX;
bounds.y += deltaY;
bounds.width += deltaWidth;
bounds.height += deltaHeight;
if (min != null) {
if (bounds.width < min.width) {
int correction = min.width - bounds.width;
if (deltaX != 0) {
bounds.x -= correction;
}
bounds.width = min.width;
}
if (bounds.height < min.height) {
int correction = min.height - bounds.height;
if (deltaY != 0) {
bounds.y -= correction;
}
bounds.height = min.height;
}
}
}
private int getMinScreenY() {
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice devices[] = ge.getScreenDevices();
GraphicsDevice gd = devices[0];
GraphicsConfiguration gc = gd.getDefaultConfiguration();
int minScreenY = gc.getBounds().y + Toolkit.getDefaultToolkit().getScreenInsets(gc).top;
if (devices.length > 1) {
for (int i = 1; i < devices.length; i++) {
gd = devices[i];
gc = gd.getDefaultConfiguration();
minScreenY = Math.min(minScreenY, gc.getBounds().y + Toolkit.getDefaultToolkit().getScreenInsets(gc).top);
}
}
return minScreenY;
}
@Override
public void mouseDragged(MouseEvent ev) {
if (ev.getSource() instanceof Window) {
Window w = (Window) ev.getSource();
if (!w.isShowing()) {
return;
}
if (w instanceof Frame) {
Frame frame = (Frame) w;
int frameState = frame.getExtendedState();
if ((frameState & BaseRootPaneUI.MAXIMIZED_BOTH) != 0) {
if (internalGetTitlePane() instanceof TitlePane) {
Point pt = ev.getPoint();
Point dragWindowOffset = ev.getPoint();
Point convertedDragWindowOffset = SwingUtilities.convertPoint(w, dragWindowOffset, internalGetTitlePane());
if (internalGetTitlePane().contains(convertedDragWindowOffset)) {
int ow = w.getWidth();
((TitlePane)internalGetTitlePane()).restore();
int nw = w.getWidth();
int nx = pt.x * nw / ow;
int ny = pt.y;
w.setLocation(nx, ny);
dragOffsetX = nx;
dragOffsetY = ny;
isMovingWindow = true;
for (PropertyChangeListener pcl : frame.getPropertyChangeListeners()) {
pcl.propertyChange(new PropertyChangeEvent(window, "windowMoving", Boolean.FALSE, Boolean.FALSE));
}
}
}
}
}
int minScreenY = getMinScreenY();
if (isMovingWindow) {
Point location = ev.getLocationOnScreen();
location.x -= dragOffsetX;
location.y = Math.max(minScreenY, location.y - dragOffsetY);
w.setLocation(location);
} else if (dragCursor != 0) {
Point pt = ev.getPoint();
Rectangle bounds = w.getBounds();
Rectangle startBounds = new Rectangle(bounds);
Dimension min = MINIMUM_SIZE;
switch (dragCursor) {
case Cursor.E_RESIZE_CURSOR:
adjust(bounds, min, 0, 0, pt.x + (dragWidth - dragOffsetX) - bounds.width, 0);
break;
case Cursor.S_RESIZE_CURSOR:
adjust(bounds, min, 0, 0, 0, pt.y + (dragHeight - dragOffsetY) - bounds.height);
break;
case Cursor.N_RESIZE_CURSOR:
adjust(bounds, min, 0, pt.y - dragOffsetY, 0, -(pt.y - dragOffsetY));
break;
case Cursor.W_RESIZE_CURSOR:
adjust(bounds, min, pt.x - dragOffsetX, 0, -(pt.x - dragOffsetX), 0);
break;
case Cursor.NE_RESIZE_CURSOR:
adjust(bounds, min, 0, pt.y - dragOffsetY, pt.x + (dragWidth - dragOffsetX) - bounds.width, -(pt.y - dragOffsetY));
break;
case Cursor.SE_RESIZE_CURSOR:
adjust(bounds, min, 0, 0, pt.x + (dragWidth - dragOffsetX) - bounds.width, pt.y + (dragHeight - dragOffsetY) - bounds.height);
break;
case Cursor.NW_RESIZE_CURSOR:
adjust(bounds, min, pt.x - dragOffsetX, pt.y - dragOffsetY, -(pt.x - dragOffsetX), -(pt.y - dragOffsetY));
break;
case Cursor.SW_RESIZE_CURSOR:
adjust(bounds, min, pt.x - dragOffsetX, 0, -(pt.x - dragOffsetX), pt.y + (dragHeight - dragOffsetY) - bounds.height);
break;
default:
break;
}
if (!bounds.equals(startBounds)) {
if (bounds.y < minScreenY) {
int delta = minScreenY - bounds.y;
bounds.y = minScreenY;
bounds.height -= delta;
}
w.setBounds(bounds);
w.validate();
}
}
}
}
@Override
public void mouseEntered(MouseEvent ev) {
mouseMoved(ev);
}
@Override
public void mouseExited(MouseEvent ev) {
if (ev.getSource() instanceof Window && savedCursor != null) {
Window w = (Window) ev.getSource();
w.setCursor(savedCursor);
savedCursor = null;
}
}
@Override
public void mouseClicked(MouseEvent ev) {
if (ev.getSource() instanceof Window) {
Window window = (Window) ev.getSource();
if (!(window instanceof Frame)) {
return;
}
Frame frame = (Frame) window;
Point convertedPoint = SwingUtilities.convertPoint(window, ev.getPoint(), internalGetTitlePane());
int state = frame.getExtendedState();
if (titlePane != null && titlePane instanceof TitlePane && titlePane.contains(convertedPoint) && frame.isResizable()) {
if ((ev.getClickCount() % 2) == 0 && ((ev.getModifiers() & InputEvent.BUTTON1_MASK) != 0)) {
if ((state & BaseRootPaneUI.MAXIMIZED_BOTH) != 0) {
((TitlePane) titlePane).restore();
} else {
((TitlePane) titlePane).maximize();
}
}
}
}
}
/**
* Returns the corner that contains the point x, y, or -1 if the position doesn't
* match a corner.
*/
private int calculateCorner(Component c, int x, int y) {
int xPosition = calculatePosition(x, c.getWidth());
int yPosition = calculatePosition(y, c.getHeight());
if (xPosition == -1 || yPosition == -1) {
return -1;
}
return yPosition * 5 + xPosition;
}
/**
* Returns the Cursor to render for the specified corner. This returns 0 if the corner doesn't map to a valid
* Cursor
*/
private int getCursor(int corner) {
if (corner == -1) {
return 0;
}
return cursorMapping[corner];
}
/**
* Returns an integer indicating the position of spot in width. The return value will
* be: 0 if < BORDER_DRAG_THICKNESS 1 if < CORNER_DRAG_WIDTH 2 if >= CORNER_DRAG_WIDTH &&
* < width - BORDER_DRAG_THICKNESS 3 if >= width - CORNER_DRAG_WIDTH 4 if >= width - BORDER_DRAG_THICKNESS 5
* otherwise
*/
private int calculatePosition(int spot, int width) {
if (spot < BORDER_DRAG_THICKNESS) {
return 0;
}
if (spot < CORNER_DRAG_WIDTH) {
return 1;
}
if (spot >= (width - BORDER_DRAG_THICKNESS)) {
return 4;
}
if (spot >= (width - CORNER_DRAG_WIDTH)) {
return 3;
}
return 2;
}
}
//------------------------------------------------------------------------------
private static class ResizingPanel extends JPanel {
private BufferedImage bi = null;
public ResizingPanel(BufferedImage bi) {
super();
this.bi = bi;
}
@Override
public void paint(Graphics g) {
super.paint(g);
g.drawImage(bi, 0, 0, null);
}
} // end of class ResizingPanel
} // end of class BaseRootPaneUI