Java example source code file (WindowsInternalFrameTitlePane.java)
The WindowsInternalFrameTitlePane.java Java example source code
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package com.sun.java.swing.plaf.windows;
import sun.swing.SwingUtilities2;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.UIManager;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.BasicInternalFrameTitlePane;
import java.awt.*;
import java.awt.event.*;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.beans.PropertyVetoException;
import static com.sun.java.swing.plaf.windows.TMSchema.*;
import static com.sun.java.swing.plaf.windows.XPStyle.Skin;
public class WindowsInternalFrameTitlePane extends BasicInternalFrameTitlePane {
private Color selectedTitleGradientColor;
private Color notSelectedTitleGradientColor;
private JPopupMenu systemPopupMenu;
private JLabel systemLabel;
private Font titleFont;
private int titlePaneHeight;
private int buttonWidth, buttonHeight;
private boolean hotTrackingOn;
public WindowsInternalFrameTitlePane(JInternalFrame f) {
super(f);
}
protected void addSubComponents() {
add(systemLabel);
add(iconButton);
add(maxButton);
add(closeButton);
}
protected void installDefaults() {
super.installDefaults();
titlePaneHeight = UIManager.getInt("InternalFrame.titlePaneHeight");
buttonWidth = UIManager.getInt("InternalFrame.titleButtonWidth") - 4;
buttonHeight = UIManager.getInt("InternalFrame.titleButtonHeight") - 4;
Object obj = UIManager.get("InternalFrame.titleButtonToolTipsOn");
hotTrackingOn = (obj instanceof Boolean) ? (Boolean)obj : true;
if (XPStyle.getXP() != null) {
// Fix for XP bug where sometimes these sizes aren't updated properly
// Assume for now that height is correct and derive width using the
// ratio from the uxtheme part
buttonWidth = buttonHeight;
Dimension d = XPStyle.getPartSize(Part.WP_CLOSEBUTTON, State.NORMAL);
if (d != null && d.width != 0 && d.height != 0) {
buttonWidth = (int) ((float) buttonWidth * d.width / d.height);
}
} else {
buttonWidth += 2;
selectedTitleGradientColor =
UIManager.getColor("InternalFrame.activeTitleGradient");
notSelectedTitleGradientColor =
UIManager.getColor("InternalFrame.inactiveTitleGradient");
Color activeBorderColor =
UIManager.getColor("InternalFrame.activeBorderColor");
setBorder(BorderFactory.createLineBorder(activeBorderColor, 1));
}
}
protected void uninstallListeners() {
// Get around protected method in superclass
super.uninstallListeners();
}
protected void createButtons() {
super.createButtons();
if (XPStyle.getXP() != null) {
iconButton.setContentAreaFilled(false);
maxButton.setContentAreaFilled(false);
closeButton.setContentAreaFilled(false);
}
}
protected void setButtonIcons() {
super.setButtonIcons();
if (!hotTrackingOn) {
iconButton.setToolTipText(null);
maxButton.setToolTipText(null);
closeButton.setToolTipText(null);
}
}
public void paintComponent(Graphics g) {
XPStyle xp = XPStyle.getXP();
paintTitleBackground(g);
String title = frame.getTitle();
if (title != null) {
boolean isSelected = frame.isSelected();
Font oldFont = g.getFont();
Font newFont = (titleFont != null) ? titleFont : getFont();
g.setFont(newFont);
// Center text vertically.
FontMetrics fm = SwingUtilities2.getFontMetrics(frame, g, newFont);
int baseline = (getHeight() + fm.getAscent() - fm.getLeading() -
fm.getDescent()) / 2;
Rectangle lastIconBounds = new Rectangle(0, 0, 0, 0);
if (frame.isIconifiable()) {
lastIconBounds = iconButton.getBounds();
} else if (frame.isMaximizable()) {
lastIconBounds = maxButton.getBounds();
} else if (frame.isClosable()) {
lastIconBounds = closeButton.getBounds();
}
int titleX;
int titleW;
int gap = 2;
if (WindowsGraphicsUtils.isLeftToRight(frame)) {
if (lastIconBounds.x == 0) { // There are no icons
lastIconBounds.x = frame.getWidth() - frame.getInsets().right;
}
titleX = systemLabel.getX() + systemLabel.getWidth() + gap;
if (xp != null) {
titleX += 2;
}
titleW = lastIconBounds.x - titleX - gap;
} else {
if (lastIconBounds.x == 0) { // There are no icons
lastIconBounds.x = frame.getInsets().left;
}
titleW = SwingUtilities2.stringWidth(frame, fm, title);
int minTitleX = lastIconBounds.x + lastIconBounds.width + gap;
if (xp != null) {
minTitleX += 2;
}
int availableWidth = systemLabel.getX() - gap - minTitleX;
if (availableWidth > titleW) {
titleX = systemLabel.getX() - gap - titleW;
} else {
titleX = minTitleX;
titleW = availableWidth;
}
}
title = getTitle(frame.getTitle(), fm, titleW);
if (xp != null) {
String shadowType = null;
if (isSelected) {
shadowType = xp.getString(this, Part.WP_CAPTION,
State.ACTIVE, Prop.TEXTSHADOWTYPE);
}
if ("single".equalsIgnoreCase(shadowType)) {
Point shadowOffset = xp.getPoint(this, Part.WP_WINDOW, State.ACTIVE,
Prop.TEXTSHADOWOFFSET);
Color shadowColor = xp.getColor(this, Part.WP_WINDOW, State.ACTIVE,
Prop.TEXTSHADOWCOLOR, null);
if (shadowOffset != null && shadowColor != null) {
g.setColor(shadowColor);
SwingUtilities2.drawString(frame, g, title,
titleX + shadowOffset.x,
baseline + shadowOffset.y);
}
}
}
g.setColor(isSelected ? selectedTextColor : notSelectedTextColor);
SwingUtilities2.drawString(frame, g, title, titleX, baseline);
g.setFont(oldFont);
}
}
public Dimension getPreferredSize() {
return getMinimumSize();
}
public Dimension getMinimumSize() {
Dimension d = new Dimension(super.getMinimumSize());
d.height = titlePaneHeight + 2;
XPStyle xp = XPStyle.getXP();
if (xp != null) {
// Note: Don't know how to calculate height on XP,
// the captionbarheight is 25 but native caption is 30 (maximized 26)
if (frame.isMaximum()) {
d.height -= 1;
} else {
d.height += 3;
}
}
return d;
}
protected void paintTitleBackground(Graphics g) {
XPStyle xp = XPStyle.getXP();
if (xp != null) {
Part part = frame.isIcon() ? Part.WP_MINCAPTION
: (frame.isMaximum() ? Part.WP_MAXCAPTION
: Part.WP_CAPTION);
State state = frame.isSelected() ? State.ACTIVE : State.INACTIVE;
Skin skin = xp.getSkin(this, part);
skin.paintSkin(g, 0, 0, getWidth(), getHeight(), state);
} else {
Boolean gradientsOn = (Boolean)LookAndFeel.getDesktopPropertyValue(
"win.frame.captionGradientsOn", Boolean.valueOf(false));
if (gradientsOn.booleanValue() && g instanceof Graphics2D) {
Graphics2D g2 = (Graphics2D)g;
Paint savePaint = g2.getPaint();
boolean isSelected = frame.isSelected();
int w = getWidth();
if (isSelected) {
GradientPaint titleGradient = new GradientPaint(0,0,
selectedTitleColor,
(int)(w*.75),0,
selectedTitleGradientColor);
g2.setPaint(titleGradient);
} else {
GradientPaint titleGradient = new GradientPaint(0,0,
notSelectedTitleColor,
(int)(w*.75),0,
notSelectedTitleGradientColor);
g2.setPaint(titleGradient);
}
g2.fillRect(0, 0, getWidth(), getHeight());
g2.setPaint(savePaint);
} else {
super.paintTitleBackground(g);
}
}
}
protected void assembleSystemMenu() {
systemPopupMenu = new JPopupMenu();
addSystemMenuItems(systemPopupMenu);
enableActions();
systemLabel = new JLabel(frame.getFrameIcon()) {
protected void paintComponent(Graphics g) {
int x = 0;
int y = 0;
int w = getWidth();
int h = getHeight();
g = g.create(); // Create scratch graphics
if (isOpaque()) {
g.setColor(getBackground());
g.fillRect(0, 0, w, h);
}
Icon icon = getIcon();
int iconWidth;
int iconHeight;
if (icon != null &&
(iconWidth = icon.getIconWidth()) > 0 &&
(iconHeight = icon.getIconHeight()) > 0) {
// Set drawing scale to make icon scale to our desired size
double drawScale;
if (iconWidth > iconHeight) {
// Center icon vertically
y = (h - w*iconHeight/iconWidth) / 2;
drawScale = w / (double)iconWidth;
} else {
// Center icon horizontally
x = (w - h*iconWidth/iconHeight) / 2;
drawScale = h / (double)iconHeight;
}
((Graphics2D)g).translate(x, y);
((Graphics2D)g).scale(drawScale, drawScale);
icon.paintIcon(this, g, 0, 0);
}
g.dispose();
}
};
systemLabel.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
if (e.getClickCount() == 2 && frame.isClosable() &&
!frame.isIcon()) {
systemPopupMenu.setVisible(false);
frame.doDefaultCloseAction();
}
else {
super.mouseClicked(e);
}
}
public void mousePressed(MouseEvent e) {
try {
frame.setSelected(true);
} catch(PropertyVetoException pve) {
}
showSystemPopupMenu(e.getComponent());
}
});
}
protected void addSystemMenuItems(JPopupMenu menu) {
JMenuItem mi = menu.add(restoreAction);
mi.setMnemonic(getButtonMnemonic("restore"));
mi = menu.add(moveAction);
mi.setMnemonic(getButtonMnemonic("move"));
mi = menu.add(sizeAction);
mi.setMnemonic(getButtonMnemonic("size"));
mi = menu.add(iconifyAction);
mi.setMnemonic(getButtonMnemonic("minimize"));
mi = menu.add(maximizeAction);
mi.setMnemonic(getButtonMnemonic("maximize"));
menu.add(new JSeparator());
mi = menu.add(closeAction);
mi.setMnemonic(getButtonMnemonic("close"));
}
private static int getButtonMnemonic(String button) {
try {
return Integer.parseInt(UIManager.getString(
"InternalFrameTitlePane." + button + "Button.mnemonic"));
} catch (NumberFormatException e) {
return -1;
}
}
protected void showSystemMenu(){
showSystemPopupMenu(systemLabel);
}
private void showSystemPopupMenu(Component invoker){
Dimension dim = new Dimension();
Border border = frame.getBorder();
if (border != null) {
dim.width += border.getBorderInsets(frame).left +
border.getBorderInsets(frame).right;
dim.height += border.getBorderInsets(frame).bottom +
border.getBorderInsets(frame).top;
}
if (!frame.isIcon()) {
systemPopupMenu.show(invoker,
getX() - dim.width,
getY() + getHeight() - dim.height);
} else {
systemPopupMenu.show(invoker,
getX() - dim.width,
getY() - systemPopupMenu.getPreferredSize().height -
dim.height);
}
}
protected PropertyChangeListener createPropertyChangeListener() {
return new WindowsPropertyChangeHandler();
}
protected LayoutManager createLayout() {
return new WindowsTitlePaneLayout();
}
public class WindowsTitlePaneLayout extends BasicInternalFrameTitlePane.TitlePaneLayout {
private Insets captionMargin = null;
private Insets contentMargin = null;
private XPStyle xp = XPStyle.getXP();
WindowsTitlePaneLayout() {
if (xp != null) {
Component c = WindowsInternalFrameTitlePane.this;
captionMargin = xp.getMargin(c, Part.WP_CAPTION, null, Prop.CAPTIONMARGINS);
contentMargin = xp.getMargin(c, Part.WP_CAPTION, null, Prop.CONTENTMARGINS);
}
if (captionMargin == null) {
captionMargin = new Insets(0, 2, 0, 2);
}
if (contentMargin == null) {
contentMargin = new Insets(0, 0, 0, 0);
}
}
private int layoutButton(JComponent button, Part part,
int x, int y, int w, int h, int gap,
boolean leftToRight) {
if (!leftToRight) {
x -= w;
}
button.setBounds(x, y, w, h);
if (leftToRight) {
x += w + 2;
} else {
x -= 2;
}
return x;
}
public void layoutContainer(Container c) {
boolean leftToRight = WindowsGraphicsUtils.isLeftToRight(frame);
int x, y;
int w = getWidth();
int h = getHeight();
// System button
// Note: this icon is square, but the buttons aren't always.
int iconSize = (xp != null) ? (h-2)*6/10 : h-4;
if (xp != null) {
x = (leftToRight) ? captionMargin.left + 2 : w - captionMargin.right - 2;
} else {
x = (leftToRight) ? captionMargin.left : w - captionMargin.right;
}
y = (h - iconSize) / 2;
layoutButton(systemLabel, Part.WP_SYSBUTTON,
x, y, iconSize, iconSize, 0,
leftToRight);
// Right hand buttons
if (xp != null) {
x = (leftToRight) ? w - captionMargin.right - 2 : captionMargin.left + 2;
y = 1; // XP seems to ignore margins and offset here
if (frame.isMaximum()) {
y += 1;
} else {
y += 5;
}
} else {
x = (leftToRight) ? w - captionMargin.right : captionMargin.left;
y = (h - buttonHeight) / 2;
}
if(frame.isClosable()) {
x = layoutButton(closeButton, Part.WP_CLOSEBUTTON,
x, y, buttonWidth, buttonHeight, 2,
!leftToRight);
}
if(frame.isMaximizable()) {
x = layoutButton(maxButton, Part.WP_MAXBUTTON,
x, y, buttonWidth, buttonHeight, (xp != null) ? 2 : 0,
!leftToRight);
}
if(frame.isIconifiable()) {
layoutButton(iconButton, Part.WP_MINBUTTON,
x, y, buttonWidth, buttonHeight, 0,
!leftToRight);
}
}
} // end WindowsTitlePaneLayout
public class WindowsPropertyChangeHandler extends PropertyChangeHandler {
public void propertyChange(PropertyChangeEvent evt) {
String prop = evt.getPropertyName();
// Update the internal frame icon for the system menu.
if (JInternalFrame.FRAME_ICON_PROPERTY.equals(prop) &&
systemLabel != null) {
systemLabel.setIcon(frame.getFrameIcon());
}
super.propertyChange(evt);
}
}
/**
* A versatile Icon implementation which can take an array of Icon
* instances (typically <code>ImageIcons) and choose one that gives the best
* quality for a given Graphics2D scale factor when painting.
* <p>
* The class is public so it can be instantiated by UIDefaults.ProxyLazyValue.
* <p>
* Note: We assume here that icons are square.
*/
public static class ScalableIconUIResource implements Icon, UIResource {
// We can use an arbitrary size here because we scale to it in paintIcon()
private static final int SIZE = 16;
private Icon[] icons;
/**
* @params objects an array of Icon or UIDefaults.LazyValue
* <p>
* The constructor is public so it can be called by UIDefaults.ProxyLazyValue.
*/
public ScalableIconUIResource(Object[] objects) {
this.icons = new Icon[objects.length];
for (int i = 0; i < objects.length; i++) {
if (objects[i] instanceof UIDefaults.LazyValue) {
icons[i] = (Icon)((UIDefaults.LazyValue)objects[i]).createValue(null);
} else {
icons[i] = (Icon)objects[i];
}
}
}
/**
* @return the <code>Icon closest to the requested size
*/
protected Icon getBestIcon(int size) {
if (icons != null && icons.length > 0) {
int bestIndex = 0;
int minDiff = Integer.MAX_VALUE;
for (int i=0; i < icons.length; i++) {
Icon icon = icons[i];
int iconSize;
if (icon != null && (iconSize = icon.getIconWidth()) > 0) {
int diff = Math.abs(iconSize - size);
if (diff < minDiff) {
minDiff = diff;
bestIndex = i;
}
}
}
return icons[bestIndex];
} else {
return null;
}
}
public void paintIcon(Component c, Graphics g, int x, int y) {
Graphics2D g2d = (Graphics2D)g.create();
// Calculate how big our drawing area is in pixels
// Assume we are square
int size = getIconWidth();
double scale = g2d.getTransform().getScaleX();
Icon icon = getBestIcon((int)(size * scale));
int iconSize;
if (icon != null && (iconSize = icon.getIconWidth()) > 0) {
// Set drawing scale to make icon act true to our reported size
double drawScale = size / (double)iconSize;
g2d.translate(x, y);
g2d.scale(drawScale, drawScale);
icon.paintIcon(c, g2d, 0, 0);
}
g2d.dispose();
}
public int getIconWidth() {
return SIZE;
}
public int getIconHeight() {
return SIZE;
}
}
}
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