Java example source code file (XComponentPeer.java)
The XComponentPeer.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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package sun.awt.X11;
import java.awt.AWTEvent;
import java.awt.AWTException;
import java.awt.BufferCapabilities;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.GraphicsConfiguration;
import java.awt.Image;
import java.awt.Insets;
import java.awt.Rectangle;
import java.awt.SystemColor;
import java.awt.Toolkit;
import java.awt.Window;
import java.awt.dnd.DropTarget;
import java.awt.dnd.peer.DropTargetPeer;
import java.awt.event.FocusEvent;
import java.awt.event.InputEvent;
import java.awt.event.InputMethodEvent;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.PaintEvent;
import java.awt.event.WindowEvent;
import java.awt.event.InvocationEvent;
import java.awt.image.ImageObserver;
import java.awt.image.ImageProducer;
import java.awt.image.VolatileImage;
import java.awt.peer.ComponentPeer;
import java.awt.peer.ContainerPeer;
import java.lang.reflect.*;
import java.security.*;
import java.util.Collection;
import java.util.Objects;
import java.util.Set;
import sun.util.logging.PlatformLogger;
import sun.awt.*;
import sun.awt.event.IgnorePaintEvent;
import sun.awt.image.SunVolatileImage;
import sun.awt.image.ToolkitImage;
import sun.java2d.BackBufferCapsProvider;
import sun.java2d.pipe.Region;
public class XComponentPeer extends XWindow implements ComponentPeer, DropTargetPeer,
BackBufferCapsProvider
{
private static final PlatformLogger log = PlatformLogger.getLogger("sun.awt.X11.XComponentPeer");
private static final PlatformLogger buffersLog = PlatformLogger.getLogger("sun.awt.X11.XComponentPeer.multibuffer");
private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.awt.X11.focus.XComponentPeer");
private static final PlatformLogger fontLog = PlatformLogger.getLogger("sun.awt.X11.font.XComponentPeer");
private static final PlatformLogger enableLog = PlatformLogger.getLogger("sun.awt.X11.enable.XComponentPeer");
private static final PlatformLogger shapeLog = PlatformLogger.getLogger("sun.awt.X11.shape.XComponentPeer");
boolean paintPending = false;
boolean isLayouting = false;
private boolean enabled;
// Actually used only by XDecoratedPeer
protected int boundsOperation;
Color foreground;
Color background;
// Colors calculated as on Motif using MotifColorUtilties.
// If you use these, call updateMotifColors() in the peer's Constructor and
// setBackground(). Examples are XCheckboxPeer and XButtonPeer.
Color darkShadow;
Color lightShadow;
Color selectColor;
Font font;
private long backBuffer = 0;
private VolatileImage xBackBuffer = null;
static Color[] systemColors;
XComponentPeer() {
}
XComponentPeer (XCreateWindowParams params) {
super(params);
}
XComponentPeer(Component target, long parentWindow, Rectangle bounds) {
super(target, parentWindow, bounds);
}
/**
* Standard peer constructor, with corresponding Component
*/
XComponentPeer(Component target) {
super(target);
}
void preInit(XCreateWindowParams params) {
super.preInit(params);
boundsOperation = DEFAULT_OPERATION;
}
void postInit(XCreateWindowParams params) {
super.postInit(params);
pSetCursor(target.getCursor());
foreground = target.getForeground();
background = target.getBackground();
font = target.getFont();
if (isInitialReshape()) {
Rectangle r = target.getBounds();
reshape(r.x, r.y, r.width, r.height);
}
setEnabled(target.isEnabled());
if (target.isVisible()) {
setVisible(true);
}
}
protected boolean isInitialReshape() {
return true;
}
public void reparent(ContainerPeer newNativeParent) {
XComponentPeer newPeer = (XComponentPeer)newNativeParent;
XToolkit.awtLock();
try {
XlibWrapper.XReparentWindow(XToolkit.getDisplay(), getWindow(), newPeer.getContentWindow(), x, y);
parentWindow = newPeer;
} finally {
XToolkit.awtUnlock();
}
}
public boolean isReparentSupported() {
return System.getProperty("sun.awt.X11.XComponentPeer.reparentNotSupported", "false").equals("false");
}
public boolean isObscured() {
Container container = (target instanceof Container) ?
(Container)target : target.getParent();
if (container == null) {
return true;
}
Container parent;
while ((parent = container.getParent()) != null) {
container = parent;
}
if (container instanceof Window) {
XWindowPeer wpeer = (XWindowPeer)(container.getPeer());
if (wpeer != null) {
return (wpeer.winAttr.visibilityState !=
wpeer.winAttr.AWT_UNOBSCURED);
}
}
return true;
}
public boolean canDetermineObscurity() {
return true;
}
/*************************************************
* FOCUS STUFF
*************************************************/
/**
* Keeps the track of focused state of the _NATIVE_ window
*/
boolean bHasFocus = false;
/**
* Descendants should use this method to determine whether or not native window
* has focus.
*/
final public boolean hasFocus() {
return bHasFocus;
}
/**
* Called when component receives focus
*/
public void focusGained(FocusEvent e) {
if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
focusLog.fine("{0}", e);
}
bHasFocus = true;
}
/**
* Called when component loses focus
*/
public void focusLost(FocusEvent e) {
if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
focusLog.fine("{0}", e);
}
bHasFocus = false;
}
public boolean isFocusable() {
/* should be implemented by other sub-classes */
return false;
}
private static Class seClass;
private static Constructor seCtor;
final static AWTEvent wrapInSequenced(AWTEvent event) {
try {
if (seClass == null) {
seClass = Class.forName("java.awt.SequencedEvent");
}
if (seCtor == null) {
seCtor = (Constructor) AccessController.doPrivileged(new PrivilegedExceptionAction() {
public Object run() throws Exception {
Constructor ctor = seClass.getConstructor(new Class[] { AWTEvent.class });
ctor.setAccessible(true);
return ctor;
}
});
}
return (AWTEvent) seCtor.newInstance(new Object[] { event });
}
catch (ClassNotFoundException e) {
throw new NoClassDefFoundError("java.awt.SequencedEvent.");
}
catch (PrivilegedActionException ex) {
throw new NoClassDefFoundError("java.awt.SequencedEvent.");
}
catch (InstantiationException e) {
assert false;
}
catch (IllegalAccessException e) {
assert false;
}
catch (InvocationTargetException e) {
assert false;
}
return null;
}
// TODO: consider moving it to KeyboardFocusManagerPeerImpl
final public boolean requestFocus(Component lightweightChild, boolean temporary,
boolean focusedWindowChangeAllowed, long time,
CausedFocusEvent.Cause cause)
{
if (XKeyboardFocusManagerPeer.
processSynchronousLightweightTransfer(target, lightweightChild, temporary,
focusedWindowChangeAllowed, time))
{
return true;
}
int result = XKeyboardFocusManagerPeer.
shouldNativelyFocusHeavyweight(target, lightweightChild,
temporary, focusedWindowChangeAllowed,
time, cause);
switch (result) {
case XKeyboardFocusManagerPeer.SNFH_FAILURE:
return false;
case XKeyboardFocusManagerPeer.SNFH_SUCCESS_PROCEED:
// Currently we just generate focus events like we deal with lightweight instead of calling
// XSetInputFocus on native window
if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
focusLog.finer("Proceeding with request to " +
lightweightChild + " in " + target);
}
/**
* The problems with requests in non-focused window arise because shouldNativelyFocusHeavyweight
* checks that native window is focused while appropriate WINDOW_GAINED_FOCUS has not yet
* been processed - it is in EventQueue. Thus, SNFH allows native request and stores request record
* in requests list - and it breaks our requests sequence as first record on WGF should be the last
* focus owner which had focus before WLF. So, we should not add request record for such requests
* but store this component in mostRecent - and return true as before for compatibility.
*/
Window parentWindow = SunToolkit.getContainingWindow(target);
if (parentWindow == null) {
return rejectFocusRequestHelper("WARNING: Parent window is null");
}
XWindowPeer wpeer = (XWindowPeer)parentWindow.getPeer();
if (wpeer == null) {
return rejectFocusRequestHelper("WARNING: Parent window's peer is null");
}
/*
* Passing null 'actualFocusedWindow' as we don't want to restore focus on it
* when a component inside a Frame is requesting focus.
* See 6314575 for details.
*/
boolean res = wpeer.requestWindowFocus(null);
if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
focusLog.finer("Requested window focus: " + res);
}
// If parent window can be made focused and has been made focused(synchronously)
// then we can proceed with children, otherwise we retreat.
if (!(res && parentWindow.isFocused())) {
return rejectFocusRequestHelper("Waiting for asynchronous processing of the request");
}
return XKeyboardFocusManagerPeer.deliverFocus(lightweightChild,
(Component)target,
temporary,
focusedWindowChangeAllowed,
time, cause);
// Motif compatibility code
case XKeyboardFocusManagerPeer.SNFH_SUCCESS_HANDLED:
// Either lightweight or excessive request - all events are generated.
return true;
}
return false;
}
private boolean rejectFocusRequestHelper(String logMsg) {
if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
focusLog.finer(logMsg);
}
XKeyboardFocusManagerPeer.removeLastFocusRequest(target);
return false;
}
void handleJavaFocusEvent(AWTEvent e) {
if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
focusLog.finer(e.toString());
}
if (e.getID() == FocusEvent.FOCUS_GAINED) {
focusGained((FocusEvent)e);
} else {
focusLost((FocusEvent)e);
}
}
void handleJavaWindowFocusEvent(AWTEvent e) {
}
/*************************************************
* END OF FOCUS STUFF
*************************************************/
public void setVisible(boolean b) {
xSetVisible(b);
}
public void hide() {
setVisible(false);
}
/**
* @see java.awt.peer.ComponentPeer
*/
public void setEnabled(final boolean value) {
if (enableLog.isLoggable(PlatformLogger.Level.FINE)) {
enableLog.fine("{0}ing {1}", (value ? "Enabl" : "Disabl"), this);
}
boolean status = value;
// If any of our heavyweight ancestors are disable, we should be too
// See 6176875 for more information
final Container cp = SunToolkit.getNativeContainer(target);
if (cp != null) {
status &= ((XComponentPeer) cp.getPeer()).isEnabled();
}
synchronized (getStateLock()) {
if (enabled == status) {
return;
}
enabled = status;
}
if (target instanceof Container) {
final Component[] list = ((Container) target).getComponents();
for (final Component child : list) {
final ComponentPeer p = child.getPeer();
if (p != null) {
p.setEnabled(status && child.isEnabled());
}
}
}
repaint();
}
//
// public so aw/Window can call it
//
public final boolean isEnabled() {
synchronized (getStateLock()) {
return enabled;
}
}
@Override
public void paint(final Graphics g) {
super.paint(g);
// allow target to change the picture
target.paint(g);
}
public Graphics getGraphics() {
return getGraphics(surfaceData, getPeerForeground(), getPeerBackground(), getPeerFont());
}
public void print(Graphics g) {
// clear rect here to emulate X clears rect before Expose
g.setColor(target.getBackground());
g.fillRect(0, 0, target.getWidth(), target.getHeight());
g.setColor(target.getForeground());
// paint peer
paintPeer(g);
// allow target to change the picture
target.print(g);
}
public void setBounds(int x, int y, int width, int height, int op) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
xSetBounds(x,y,width,height);
validateSurface();
layout();
}
public void reshape(int x, int y, int width, int height) {
setBounds(x, y, width, height, SET_BOUNDS);
}
public void coalescePaintEvent(PaintEvent e) {
Rectangle r = e.getUpdateRect();
if (!(e instanceof IgnorePaintEvent)) {
paintArea.add(r, e.getID());
}
if (true) {
switch(e.getID()) {
case PaintEvent.UPDATE:
if (log.isLoggable(PlatformLogger.Level.FINER)) {
log.finer("XCP coalescePaintEvent : UPDATE : add : x = " +
r.x + ", y = " + r.y + ", width = " + r.width + ",height = " + r.height);
}
return;
case PaintEvent.PAINT:
if (log.isLoggable(PlatformLogger.Level.FINER)) {
log.finer("XCP coalescePaintEvent : PAINT : add : x = " +
r.x + ", y = " + r.y + ", width = " + r.width + ",height = " + r.height);
}
return;
}
}
}
XWindowPeer getParentTopLevel() {
AWTAccessor.ComponentAccessor compAccessor = AWTAccessor.getComponentAccessor();
Container parent = (target instanceof Container) ? ((Container)target) : (compAccessor.getParent(target));
// Search for parent window
while (parent != null && !(parent instanceof Window)) {
parent = compAccessor.getParent(parent);
}
if (parent != null) {
return (XWindowPeer)compAccessor.getPeer(parent);
} else {
return null;
}
}
/* This method is intended to be over-ridden by peers to perform user interaction */
void handleJavaMouseEvent(MouseEvent e) {
switch (e.getID()) {
case MouseEvent.MOUSE_PRESSED:
if (target == e.getSource() &&
!target.isFocusOwner() &&
XKeyboardFocusManagerPeer.shouldFocusOnClick(target))
{
XWindowPeer parentXWindow = getParentTopLevel();
Window parentWindow = ((Window)parentXWindow.getTarget());
// Simple windows are non-focusable in X terms but focusable in Java terms.
// As X-non-focusable they don't receive any focus events - we should generate them
// by ourselfves.
// if (parentXWindow.isFocusableWindow() /*&& parentXWindow.isSimpleWindow()*/ &&
// !(getCurrentNativeFocusedWindow() == parentWindow))
// {
// setCurrentNativeFocusedWindow(parentWindow);
// WindowEvent wfg = new WindowEvent(parentWindow, WindowEvent.WINDOW_GAINED_FOCUS);
// parentWindow.dispatchEvent(wfg);
// }
XKeyboardFocusManagerPeer.requestFocusFor(target, CausedFocusEvent.Cause.MOUSE_EVENT);
}
break;
}
}
/* This method is intended to be over-ridden by peers to perform user interaction */
void handleJavaKeyEvent(KeyEvent e) {
}
/* This method is intended to be over-ridden by peers to perform user interaction */
void handleJavaMouseWheelEvent(MouseWheelEvent e) {
}
/* This method is intended to be over-ridden by peers to perform user interaction */
void handleJavaInputMethodEvent(InputMethodEvent e) {
}
void handleF10JavaKeyEvent(KeyEvent e) {
if (e.getID() == KeyEvent.KEY_PRESSED && e.getKeyCode() == KeyEvent.VK_F10) {
XWindowPeer winPeer = this.getToplevelXWindow();
if (winPeer instanceof XFramePeer) {
XMenuBarPeer mPeer = ((XFramePeer)winPeer).getMenubarPeer();
if (mPeer != null) {
mPeer.handleF10KeyPress(e);
}
}
}
}
public void handleEvent(java.awt.AWTEvent e) {
if ((e instanceof InputEvent) && !((InputEvent)e).isConsumed() && target.isEnabled()) {
if (e instanceof MouseEvent) {
if (e instanceof MouseWheelEvent) {
handleJavaMouseWheelEvent((MouseWheelEvent) e);
}
else
handleJavaMouseEvent((MouseEvent) e);
}
else if (e instanceof KeyEvent) {
handleF10JavaKeyEvent((KeyEvent)e);
handleJavaKeyEvent((KeyEvent)e);
}
}
else if (e instanceof KeyEvent && !((InputEvent)e).isConsumed()) {
// even if target is disabled.
handleF10JavaKeyEvent((KeyEvent)e);
}
else if (e instanceof InputMethodEvent) {
handleJavaInputMethodEvent((InputMethodEvent) e);
}
int id = e.getID();
switch(id) {
case PaintEvent.PAINT:
// Got native painting
paintPending = false;
// Fallthrough to next statement
case PaintEvent.UPDATE:
// Skip all painting while layouting and all UPDATEs
// while waiting for native paint
if (!isLayouting && !paintPending) {
paintArea.paint(target,false);
}
return;
case FocusEvent.FOCUS_LOST:
case FocusEvent.FOCUS_GAINED:
handleJavaFocusEvent(e);
break;
case WindowEvent.WINDOW_LOST_FOCUS:
case WindowEvent.WINDOW_GAINED_FOCUS:
handleJavaWindowFocusEvent(e);
break;
default:
break;
}
}
public Dimension getMinimumSize() {
return target.getSize();
}
public Dimension getPreferredSize() {
return getMinimumSize();
}
public void layout() {}
void updateMotifColors(Color bg) {
int red = bg.getRed();
int green = bg.getGreen();
int blue = bg.getBlue();
darkShadow = new Color(MotifColorUtilities.calculateBottomShadowFromBackground(red,green,blue));
lightShadow = new Color(MotifColorUtilities.calculateTopShadowFromBackground(red,green,blue));
selectColor= new Color(MotifColorUtilities.calculateSelectFromBackground(red,green,blue));
}
/*
* Draw a 3D rectangle using the Motif colors.
* "Normal" rectangles have shadows on the bottom.
* "Depressed" rectangles (such as pressed buttons) have shadows on the top,
* in which case true should be passed for topShadow.
*/
public void drawMotif3DRect(Graphics g,
int x, int y, int width, int height,
boolean topShadow) {
g.setColor(topShadow ? darkShadow : lightShadow);
g.drawLine(x, y, x+width, y); // top
g.drawLine(x, y+height, x, y); // left
g.setColor(topShadow ? lightShadow : darkShadow );
g.drawLine(x+1, y+height, x+width, y+height); // bottom
g.drawLine(x+width, y+height, x+width, y+1); // right
}
@Override
public void setBackground(Color c) {
if (log.isLoggable(PlatformLogger.Level.FINE)) {
log.fine("Set background to " + c);
}
synchronized (getStateLock()) {
if (Objects.equals(background, c)) {
return;
}
background = c;
}
super.setBackground(c);
repaint();
}
@Override
public void setForeground(Color c) {
if (log.isLoggable(PlatformLogger.Level.FINE)) {
log.fine("Set foreground to " + c);
}
synchronized (getStateLock()) {
if (Objects.equals(foreground, c)) {
return;
}
foreground = c;
}
repaint();
}
/**
* Gets the font metrics for the specified font.
* @param font the font for which font metrics is to be
* obtained
* @return the font metrics for <code>font
* @see #getFont
* @see #getPeer
* @see java.awt.peer.ComponentPeer#getFontMetrics(Font)
* @see Toolkit#getFontMetrics(Font)
* @since JDK1.0
*/
public FontMetrics getFontMetrics(Font font) {
if (fontLog.isLoggable(PlatformLogger.Level.FINE)) {
fontLog.fine("Getting font metrics for " + font);
}
return sun.font.FontDesignMetrics.getMetrics(font);
}
@Override
public void setFont(Font f) {
if (f == null) {
f = XWindow.getDefaultFont();
}
synchronized (getStateLock()) {
if (f.equals(font)) {
return;
}
font = f;
}
// as it stands currently we don't need to do layout since
// layout is done in the Component upon setFont.
//layout();
repaint();
}
public Font getFont() {
return font;
}
public void updateCursorImmediately() {
XGlobalCursorManager.getCursorManager().updateCursorImmediately();
}
public final void pSetCursor(Cursor cursor) {
this.pSetCursor(cursor, true);
}
/*
* The method changes the cursor.
* @param cursor - a new cursor to change to.
* @param ignoreSubComponents - if {@code true} is passed then
* the new cursor will be installed on window.
* if {@code false} is passed then
* subsequent components will try to handle
* this request and install their cursor.
*/
//ignoreSubComponents not used here
public void pSetCursor(Cursor cursor, boolean ignoreSubComponents) {
XToolkit.awtLock();
try {
long xcursor = XGlobalCursorManager.getCursor(cursor);
XSetWindowAttributes xwa = new XSetWindowAttributes();
xwa.set_cursor(xcursor);
long valuemask = XConstants.CWCursor;
XlibWrapper.XChangeWindowAttributes(XToolkit.getDisplay(),getWindow(),valuemask,xwa.pData);
XlibWrapper.XFlush(XToolkit.getDisplay());
xwa.dispose();
} finally {
XToolkit.awtUnlock();
}
}
public Image createImage(ImageProducer producer) {
return new ToolkitImage(producer);
}
public Image createImage(int width, int height) {
return graphicsConfig.createAcceleratedImage(target, width, height);
}
public VolatileImage createVolatileImage(int width, int height) {
return new SunVolatileImage(target, width, height);
}
public boolean prepareImage(Image img, int w, int h, ImageObserver o) {
return Toolkit.getDefaultToolkit().prepareImage(img, w, h, o);
}
public int checkImage(Image img, int w, int h, ImageObserver o) {
return Toolkit.getDefaultToolkit().checkImage(img, w, h, o);
}
public Dimension preferredSize() {
return getPreferredSize();
}
public Dimension minimumSize() {
return getMinimumSize();
}
public Insets getInsets() {
return new Insets(0, 0, 0, 0);
}
public void beginValidate() {
}
public void endValidate() {
}
/**
* DEPRECATED: Replaced by getInsets().
*/
public Insets insets() {
return getInsets();
}
// Returns true if we are inside begin/endLayout and
// are waiting for native painting
public boolean isPaintPending() {
return paintPending && isLayouting;
}
public boolean handlesWheelScrolling() {
return false;
}
public void beginLayout() {
// Skip all painting till endLayout
isLayouting = true;
}
public void endLayout() {
if (!paintPending && !paintArea.isEmpty()
&& !AWTAccessor.getComponentAccessor().getIgnoreRepaint(target))
{
// if not waiting for native painting repaint damaged area
postEvent(new PaintEvent(target, PaintEvent.PAINT,
new Rectangle()));
}
isLayouting = false;
}
public Color getWinBackground() {
return getPeerBackground();
}
static int[] getRGBvals(Color c) {
int rgbvals[] = new int[3];
rgbvals[0] = c.getRed();
rgbvals[1] = c.getGreen();
rgbvals[2] = c.getBlue();
return rgbvals;
}
static final int BACKGROUND_COLOR = 0;
static final int HIGHLIGHT_COLOR = 1;
static final int SHADOW_COLOR = 2;
static final int FOREGROUND_COLOR = 3;
public Color[] getGUIcolors() {
Color c[] = new Color[4];
float backb, highb, shadowb, hue, saturation;
c[BACKGROUND_COLOR] = getWinBackground();
if (c[BACKGROUND_COLOR] == null) {
c[BACKGROUND_COLOR] = super.getWinBackground();
}
if (c[BACKGROUND_COLOR] == null) {
c[BACKGROUND_COLOR] = Color.lightGray;
}
int[] rgb = getRGBvals(c[BACKGROUND_COLOR]);
float[] hsb = Color.RGBtoHSB(rgb[0],rgb[1],rgb[2],null);
hue = hsb[0];
saturation = hsb[1];
backb = hsb[2];
/* Calculate Highlight Brightness */
highb = backb + 0.2f;
shadowb = backb - 0.4f;
if ((highb > 1.0) ) {
if ((1.0 - backb) < 0.05) {
highb = shadowb + 0.25f;
} else {
highb = 1.0f;
}
} else {
if (shadowb < 0.0) {
if ((backb - 0.0) < 0.25) {
highb = backb + 0.75f;
shadowb = highb - 0.2f;
} else {
shadowb = 0.0f;
}
}
}
c[HIGHLIGHT_COLOR] = Color.getHSBColor(hue,saturation,highb);
c[SHADOW_COLOR] = Color.getHSBColor(hue,saturation,shadowb);
/*
c[SHADOW_COLOR] = c[BACKGROUND_COLOR].darker();
int r2 = c[SHADOW_COLOR].getRed();
int g2 = c[SHADOW_COLOR].getGreen();
int b2 = c[SHADOW_COLOR].getBlue();
*/
c[FOREGROUND_COLOR] = getPeerForeground();
if (c[FOREGROUND_COLOR] == null) {
c[FOREGROUND_COLOR] = Color.black;
}
/*
if ((c[BACKGROUND_COLOR].equals(c[HIGHLIGHT_COLOR]))
&& (c[BACKGROUND_COLOR].equals(c[SHADOW_COLOR]))) {
c[SHADOW_COLOR] = new Color(c[BACKGROUND_COLOR].getRed() + 75,
c[BACKGROUND_COLOR].getGreen() + 75,
c[BACKGROUND_COLOR].getBlue() + 75);
c[HIGHLIGHT_COLOR] = c[SHADOW_COLOR].brighter();
} else if (c[BACKGROUND_COLOR].equals(c[HIGHLIGHT_COLOR])) {
c[HIGHLIGHT_COLOR] = c[SHADOW_COLOR];
c[SHADOW_COLOR] = c[SHADOW_COLOR].darker();
}
*/
if (! isEnabled()) {
c[BACKGROUND_COLOR] = c[BACKGROUND_COLOR].darker();
// Reduce the contrast
// Calculate the NTSC gray (NB: REC709 L* might be better!)
// for foreground and background; then multiply the foreground
// by the average lightness
Color tc = c[BACKGROUND_COLOR];
int bg = tc.getRed() * 30 + tc.getGreen() * 59 + tc.getBlue() * 11;
tc = c[FOREGROUND_COLOR];
int fg = tc.getRed() * 30 + tc.getGreen() * 59 + tc.getBlue() * 11;
float ave = (float) ((fg + bg) / 51000.0);
// 255 * 100 * 2
Color newForeground = new Color((int) (tc.getRed() * ave),
(int) (tc.getGreen() * ave),
(int) (tc.getBlue() * ave));
if (newForeground.equals(c[FOREGROUND_COLOR])) {
// This probably means the foreground color is black or white
newForeground = new Color(ave, ave, ave);
}
c[FOREGROUND_COLOR] = newForeground;
}
return c;
}
/**
* Returns an array of Colors similar to getGUIcolors(), but using the
* System colors. This is useful if pieces of a Component (such as
* the integrated scrollbars of a List) should retain the System color
* instead of the background color set by Component.setBackground().
*/
static Color[] getSystemColors() {
if (systemColors == null) {
systemColors = new Color[4];
systemColors[BACKGROUND_COLOR] = SystemColor.window;
systemColors[HIGHLIGHT_COLOR] = SystemColor.controlLtHighlight;
systemColors[SHADOW_COLOR] = SystemColor.controlShadow;
systemColors[FOREGROUND_COLOR] = SystemColor.windowText;
}
return systemColors;
}
/**
* Draw a 3D oval.
*/
public void draw3DOval(Graphics g, Color colors[],
int x, int y, int w, int h, boolean raised)
{
Color c = g.getColor();
g.setColor(raised ? colors[HIGHLIGHT_COLOR] : colors[SHADOW_COLOR]);
g.drawArc(x, y, w, h, 45, 180);
g.setColor(raised ? colors[SHADOW_COLOR] : colors[HIGHLIGHT_COLOR]);
g.drawArc(x, y, w, h, 225, 180);
g.setColor(c);
}
public void draw3DRect(Graphics g, Color colors[],
int x, int y, int width, int height, boolean raised)
{
Color c = g.getColor();
g.setColor(raised ? colors[HIGHLIGHT_COLOR] : colors[SHADOW_COLOR]);
g.drawLine(x, y, x, y + height);
g.drawLine(x + 1, y, x + width - 1, y);
g.setColor(raised ? colors[SHADOW_COLOR] : colors[HIGHLIGHT_COLOR]);
g.drawLine(x + 1, y + height, x + width, y + height);
g.drawLine(x + width, y, x + width, y + height - 1);
g.setColor(c);
}
/*
* drawXXX() methods are used to print the native components by
* rendering the Motif look ourselves.
* ToDo(aim): needs to query native motif for more accurate color
* information.
*/
void draw3DOval(Graphics g, Color bg,
int x, int y, int w, int h, boolean raised)
{
Color c = g.getColor();
Color shadow = bg.darker();
Color highlight = bg.brighter();
g.setColor(raised ? highlight : shadow);
g.drawArc(x, y, w, h, 45, 180);
g.setColor(raised ? shadow : highlight);
g.drawArc(x, y, w, h, 225, 180);
g.setColor(c);
}
void draw3DRect(Graphics g, Color bg,
int x, int y, int width, int height,
boolean raised) {
Color c = g.getColor();
Color shadow = bg.darker();
Color highlight = bg.brighter();
g.setColor(raised ? highlight : shadow);
g.drawLine(x, y, x, y + height);
g.drawLine(x + 1, y, x + width - 1, y);
g.setColor(raised ? shadow : highlight);
g.drawLine(x + 1, y + height, x + width, y + height);
g.drawLine(x + width, y, x + width, y + height - 1);
g.setColor(c);
}
void drawScrollbar(Graphics g, Color bg, int thickness, int length,
int min, int max, int val, int vis, boolean horizontal) {
Color c = g.getColor();
double f = (double)(length - 2*(thickness-1)) / Math.max(1, ((max - min) + vis));
int v1 = thickness + (int)(f * (val - min));
int v2 = (int)(f * vis);
int w2 = thickness-4;
int tpts_x[] = new int[3];
int tpts_y[] = new int[3];
if (length < 3*w2 ) {
v1 = v2 = 0;
if (length < 2*w2 + 2) {
w2 = (length-2)/2;
}
} else if (v2 < 7) {
// enforce a minimum handle size
v1 = Math.max(0, v1 - ((7 - v2)>>1));
v2 = 7;
}
int ctr = thickness/2;
int sbmin = ctr - w2/2;
int sbmax = ctr + w2/2;
// paint the background slightly darker
{
Color d = new Color((int) (bg.getRed() * 0.85),
(int) (bg.getGreen() * 0.85),
(int) (bg.getBlue() * 0.85));
g.setColor(d);
if (horizontal) {
g.fillRect(0, 0, length, thickness);
} else {
g.fillRect(0, 0, thickness, length);
}
}
// paint the thumb and arrows in the normal background color
g.setColor(bg);
if (v1 > 0) {
if (horizontal) {
g.fillRect(v1, 3, v2, thickness-3);
} else {
g.fillRect(3, v1, thickness-3, v2);
}
}
tpts_x[0] = ctr; tpts_y[0] = 2;
tpts_x[1] = sbmin; tpts_y[1] = w2;
tpts_x[2] = sbmax; tpts_y[2] = w2;
if (horizontal) {
g.fillPolygon(tpts_y, tpts_x, 3);
} else {
g.fillPolygon(tpts_x, tpts_y, 3);
}
tpts_y[0] = length-2;
tpts_y[1] = length-w2;
tpts_y[2] = length-w2;
if (horizontal) {
g.fillPolygon(tpts_y, tpts_x, 3);
} else {
g.fillPolygon(tpts_x, tpts_y, 3);
}
Color highlight = bg.brighter();
// // // // draw the "highlighted" edges
g.setColor(highlight);
// outline & arrows
if (horizontal) {
g.drawLine(1, thickness, length - 1, thickness);
g.drawLine(length - 1, 1, length - 1, thickness);
// arrows
g.drawLine(1, ctr, w2, sbmin);
g.drawLine(length - w2, sbmin, length - w2, sbmax);
g.drawLine(length - w2, sbmin, length - 2, ctr);
} else {
g.drawLine(thickness, 1, thickness, length - 1);
g.drawLine(1, length - 1, thickness, length - 1);
// arrows
g.drawLine(ctr, 1, sbmin, w2);
g.drawLine(sbmin, length - w2, sbmax, length - w2);
g.drawLine(sbmin, length - w2, ctr, length - 2);
}
// thumb
if (v1 > 0) {
if (horizontal) {
g.drawLine(v1, 2, v1 + v2, 2);
g.drawLine(v1, 2, v1, thickness-3);
} else {
g.drawLine(2, v1, 2, v1 + v2);
g.drawLine(2, v1, thickness-3, v1);
}
}
Color shadow = bg.darker();
// // // // draw the "shadowed" edges
g.setColor(shadow);
// outline && arrows
if (horizontal) {
g.drawLine(0, 0, 0, thickness);
g.drawLine(0, 0, length - 1, 0);
// arrows
g.drawLine(w2, sbmin, w2, sbmax);
g.drawLine(w2, sbmax, 1, ctr);
g.drawLine(length-2, ctr, length-w2, sbmax);
} else {
g.drawLine(0, 0, thickness, 0);
g.drawLine(0, 0, 0, length - 1);
// arrows
g.drawLine(sbmin, w2, sbmax, w2);
g.drawLine(sbmax, w2, ctr, 1);
g.drawLine(ctr, length-2, sbmax, length-w2);
}
// thumb
if (v1 > 0) {
if (horizontal) {
g.drawLine(v1 + v2, 2, v1 + v2, thickness-2);
g.drawLine(v1, thickness-2, v1 + v2, thickness-2);
} else {
g.drawLine(2, v1 + v2, thickness-2, v1 + v2);
g.drawLine(thickness-2, v1, thickness-2, v1 + v2);
}
}
g.setColor(c);
}
/**
* The following multibuffering-related methods delegate to our
* associated GraphicsConfig (X11 or GLX) to handle the appropriate
* native windowing system specific actions.
*/
private BufferCapabilities backBufferCaps;
public void createBuffers(int numBuffers, BufferCapabilities caps)
throws AWTException
{
if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
buffersLog.fine("createBuffers(" + numBuffers + ", " + caps + ")");
}
// set the caps first, they're used when creating the bb
backBufferCaps = caps;
backBuffer = graphicsConfig.createBackBuffer(this, numBuffers, caps);
xBackBuffer = graphicsConfig.createBackBufferImage(target,
backBuffer);
}
@Override
public BufferCapabilities getBackBufferCaps() {
return backBufferCaps;
}
public void flip(int x1, int y1, int x2, int y2,
BufferCapabilities.FlipContents flipAction)
{
if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
buffersLog.fine("flip(" + flipAction + ")");
}
if (backBuffer == 0) {
throw new IllegalStateException("Buffers have not been created");
}
graphicsConfig.flip(this, target, xBackBuffer,
x1, y1, x2, y2, flipAction);
}
public Image getBackBuffer() {
if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
buffersLog.fine("getBackBuffer()");
}
if (backBuffer == 0) {
throw new IllegalStateException("Buffers have not been created");
}
return xBackBuffer;
}
public void destroyBuffers() {
if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
buffersLog.fine("destroyBuffers()");
}
graphicsConfig.destroyBackBuffer(backBuffer);
backBuffer = 0;
xBackBuffer = null;
}
// End of multi-buffering
public void notifyTextComponentChange(boolean add){
Container parent = AWTAccessor.getComponentAccessor().getParent(target);
while(!(parent == null ||
parent instanceof java.awt.Frame ||
parent instanceof java.awt.Dialog)) {
parent = AWTAccessor.getComponentAccessor().getParent(parent);
}
/* FIX ME - FIX ME need to implement InputMethods
if (parent instanceof java.awt.Frame ||
parent instanceof java.awt.Dialog) {
if (add)
((MInputMethodControl)parent.getPeer()).addTextComponent((MComponentPeer)this);
else
((MInputMethodControl)parent.getPeer()).removeTextComponent((MComponentPeer)this);
}
*/
}
/**
* Returns true if this event is disabled and shouldn't be processed by window
* Currently if target component is disabled the following event will be disabled on window:
* ButtonPress, ButtonRelease, KeyPress, KeyRelease, EnterNotify, LeaveNotify, MotionNotify
*/
protected boolean isEventDisabled(XEvent e) {
if (enableLog.isLoggable(PlatformLogger.Level.FINEST)) {
enableLog.finest("Component is {1}, checking for disabled event {0}", e, (isEnabled()?"enabled":"disable"));
}
if (!isEnabled()) {
switch (e.get_type()) {
case XConstants.ButtonPress:
case XConstants.ButtonRelease:
case XConstants.KeyPress:
case XConstants.KeyRelease:
case XConstants.EnterNotify:
case XConstants.LeaveNotify:
case XConstants.MotionNotify:
if (enableLog.isLoggable(PlatformLogger.Level.FINER)) {
enableLog.finer("Event {0} is disable", e);
}
return true;
}
}
switch(e.get_type()) {
case XConstants.MapNotify:
case XConstants.UnmapNotify:
return true;
}
return super.isEventDisabled(e);
}
Color getPeerBackground() {
return background;
}
Color getPeerForeground() {
return foreground;
}
Font getPeerFont() {
return font;
}
Dimension getPeerSize() {
return new Dimension(width,height);
}
public void setBoundsOperation(int operation) {
synchronized(getStateLock()) {
if (boundsOperation == DEFAULT_OPERATION) {
boundsOperation = operation;
} else if (operation == RESET_OPERATION) {
boundsOperation = DEFAULT_OPERATION;
}
}
}
static String operationToString(int operation) {
switch (operation) {
case SET_LOCATION:
return "SET_LOCATION";
case SET_SIZE:
return "SET_SIZE";
case SET_CLIENT_SIZE:
return "SET_CLIENT_SIZE";
default:
case SET_BOUNDS:
return "SET_BOUNDS";
}
}
/**
* Lowers this component at the bottom of the above HW peer. If the above parameter
* is null then the method places this component at the top of the Z-order.
*/
public void setZOrder(ComponentPeer above) {
long aboveWindow = (above != null) ? ((XComponentPeer)above).getWindow() : 0;
XToolkit.awtLock();
try{
XlibWrapper.SetZOrder(XToolkit.getDisplay(), getWindow(), aboveWindow);
}finally{
XToolkit.awtUnlock();
}
}
private void addTree(Collection order, Set set, Container cont) {
for (int i = 0; i < cont.getComponentCount(); i++) {
Component comp = cont.getComponent(i);
ComponentPeer peer = comp.getPeer();
if (peer instanceof XComponentPeer) {
Long window = Long.valueOf(((XComponentPeer)peer).getWindow());
if (!set.contains(window)) {
set.add(window);
order.add(window);
}
} else if (comp instanceof Container) {
// It is lightweight container, it might contain heavyweight components attached to this
// peer
addTree(order, set, (Container)comp);
}
}
}
/****** DropTargetPeer implementation ********************/
public void addDropTarget(DropTarget dt) {
Component comp = target;
while(!(comp == null || comp instanceof Window)) {
comp = comp.getParent();
}
if (comp instanceof Window) {
XWindowPeer wpeer = (XWindowPeer)(comp.getPeer());
if (wpeer != null) {
wpeer.addDropTarget();
}
}
}
public void removeDropTarget(DropTarget dt) {
Component comp = target;
while(!(comp == null || comp instanceof Window)) {
comp = comp.getParent();
}
if (comp instanceof Window) {
XWindowPeer wpeer = (XWindowPeer)(comp.getPeer());
if (wpeer != null) {
wpeer.removeDropTarget();
}
}
}
/**
* Applies the shape to the X-window.
* @since 1.7
*/
public void applyShape(Region shape) {
if (XlibUtil.isShapingSupported()) {
if (shapeLog.isLoggable(PlatformLogger.Level.FINER)) {
shapeLog.finer(
"*** INFO: Setting shape: PEER: " + this
+ "; WINDOW: " + getWindow()
+ "; TARGET: " + target
+ "; SHAPE: " + shape);
}
XToolkit.awtLock();
try {
if (shape != null) {
XlibWrapper.SetRectangularShape(
XToolkit.getDisplay(),
getWindow(),
shape.getLoX(), shape.getLoY(),
shape.getHiX(), shape.getHiY(),
(shape.isRectangular() ? null : shape)
);
} else {
XlibWrapper.SetRectangularShape(
XToolkit.getDisplay(),
getWindow(),
0, 0,
0, 0,
null
);
}
} finally {
XToolkit.awtUnlock();
}
} else {
if (shapeLog.isLoggable(PlatformLogger.Level.FINER)) {
shapeLog.finer("*** WARNING: Shaping is NOT supported!");
}
}
}
public boolean updateGraphicsData(GraphicsConfiguration gc) {
int oldVisual = -1, newVisual = -1;
if (graphicsConfig != null) {
oldVisual = graphicsConfig.getVisual();
}
if (gc != null && gc instanceof X11GraphicsConfig) {
newVisual = ((X11GraphicsConfig)gc).getVisual();
}
// If the new visual differs from the old one, the peer must be
// recreated because X11 does not allow changing the visual on the fly.
// So we even skip the initGraphicsConfiguration() call.
// The initial assignment should happen though, hence the != -1 thing.
if (oldVisual != -1 && oldVisual != newVisual) {
return true;
}
initGraphicsConfiguration();
doValidateSurface();
return false;
}
}
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