Java example source code file (XFramePeer.java)
The XFramePeer.java Java example source code
/*
* Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
* 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.awt.X11;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Insets;
import java.awt.MenuBar;
import java.awt.Rectangle;
import java.awt.peer.FramePeer;
import sun.util.logging.PlatformLogger;
import sun.awt.AWTAccessor;
class XFramePeer extends XDecoratedPeer implements FramePeer {
private static PlatformLogger log = PlatformLogger.getLogger("sun.awt.X11.XFramePeer");
private static PlatformLogger stateLog = PlatformLogger.getLogger("sun.awt.X11.states");
private static PlatformLogger insLog = PlatformLogger.getLogger("sun.awt.X11.insets.XFramePeer");
XMenuBarPeer menubarPeer;
MenuBar menubar;
int state;
private Boolean undecorated;
private static final int MENUBAR_HEIGHT_IF_NO_MENUBAR = 0;
private int lastAppliedMenubarHeight = MENUBAR_HEIGHT_IF_NO_MENUBAR;
XFramePeer(Frame target) {
super(target);
}
XFramePeer(XCreateWindowParams params) {
super(params);
}
void preInit(XCreateWindowParams params) {
super.preInit(params);
Frame target = (Frame)(this.target);
// set the window attributes for this Frame
winAttr.initialState = target.getExtendedState();
state = 0;
undecorated = Boolean.valueOf(target.isUndecorated());
winAttr.nativeDecor = !target.isUndecorated();
if (winAttr.nativeDecor) {
winAttr.decorations = winAttr.AWT_DECOR_ALL;
} else {
winAttr.decorations = winAttr.AWT_DECOR_NONE;
}
winAttr.functions = MWMConstants.MWM_FUNC_ALL;
winAttr.isResizable = true; // target.isResizable();
winAttr.title = target.getTitle();
winAttr.initialResizability = target.isResizable();
if (log.isLoggable(PlatformLogger.Level.FINE)) {
log.fine("Frame''s initial attributes: decor {0}, resizable {1}, undecorated {2}, initial state {3}",
Integer.valueOf(winAttr.decorations), Boolean.valueOf(winAttr.initialResizability),
Boolean.valueOf(!winAttr.nativeDecor), Integer.valueOf(winAttr.initialState));
}
}
void postInit(XCreateWindowParams params) {
super.postInit(params);
setupState(true);
}
@Override
boolean isTargetUndecorated() {
if (undecorated != null) {
return undecorated.booleanValue();
} else {
return ((Frame)target).isUndecorated();
}
}
void setupState(boolean onInit) {
if (onInit) {
state = winAttr.initialState;
}
if ((state & Frame.ICONIFIED) != 0) {
setInitialState(XUtilConstants.IconicState);
} else {
setInitialState(XUtilConstants.NormalState);
}
setExtendedState(state);
}
public void setMenuBar(MenuBar mb) {
// state_lock should always be the second after awt_lock
XToolkit.awtLock();
try {
synchronized(getStateLock()) {
if (mb == menubar) return;
if (mb == null) {
if (menubar != null) {
menubarPeer.xSetVisible(false);
menubar = null;
menubarPeer.dispose();
menubarPeer = null;
}
} else {
menubar = mb;
menubarPeer = (XMenuBarPeer) mb.getPeer();
if (menubarPeer != null) {
menubarPeer.init((Frame)target);
}
}
}
} finally {
XToolkit.awtUnlock();
}
reshapeMenubarPeer();
}
XMenuBarPeer getMenubarPeer() {
return menubarPeer;
}
int getMenuBarHeight() {
if (menubarPeer != null) {
return menubarPeer.getDesiredHeight();
} else {
return MENUBAR_HEIGHT_IF_NO_MENUBAR;
}
}
void updateChildrenSizes() {
super.updateChildrenSizes();
int height = getMenuBarHeight();
// XWindow.reshape calls XBaseWindow.xSetBounds, which acquires
// the AWT lock, so we have to acquire the AWT lock here
// before getStateLock() to avoid a deadlock with the Toolkit thread
// when this method is called on the EDT.
XToolkit.awtLock();
try {
synchronized(getStateLock()) {
int width = dimensions.getClientSize().width;
if (menubarPeer != null) {
menubarPeer.reshape(0, 0, width, height);
}
}
} finally {
XToolkit.awtUnlock();
}
}
/**
* In addition to reshaping menubarPeer (by using 'updateChildrenSizes')
* this method also performs some frame reaction on this (i.e. layouts
* other frame children, if required)
*/
final void reshapeMenubarPeer() {
XToolkit.executeOnEventHandlerThread(
target,
new Runnable() {
public void run() {
updateChildrenSizes();
boolean heightChanged = false;
int height = getMenuBarHeight();
// Neither 'XToolkit.awtLock()' nor 'getStateLock()'
// is acquired under this call, and it looks to run
// thread-safely. I currently see no reason to move
// it under following 'synchronized' clause.
synchronized(getStateLock()) {
if (height != lastAppliedMenubarHeight) {
lastAppliedMenubarHeight = height;
heightChanged = true;
}
}
if (heightChanged) {
// To make frame contents be re-layout (copied from
// 'XDecoratedPeer.revalidate()'). These are not
// 'synchronized', because can recursively call client
// methods, which are not supposed to be called with locks
// acquired.
target.invalidate();
target.validate();
}
}
}
);
}
public void setMaximizedBounds(Rectangle b) {
if (insLog.isLoggable(PlatformLogger.Level.FINE)) {
insLog.fine("Setting maximized bounds to " + b);
}
if (b == null) return;
maxBounds = new Rectangle(b);
XToolkit.awtLock();
try {
XSizeHints hints = getHints();
hints.set_flags(hints.get_flags() | (int)XUtilConstants.PMaxSize);
if (b.width != Integer.MAX_VALUE) {
hints.set_max_width(b.width);
} else {
hints.set_max_width((int)XlibWrapper.DisplayWidth(XToolkit.getDisplay(), XlibWrapper.DefaultScreen(XToolkit.getDisplay())));
}
if (b.height != Integer.MAX_VALUE) {
hints.set_max_height(b.height);
} else {
hints.set_max_height((int)XlibWrapper.DisplayHeight(XToolkit.getDisplay(), XlibWrapper.DefaultScreen(XToolkit.getDisplay())));
}
if (insLog.isLoggable(PlatformLogger.Level.FINER)) {
insLog.finer("Setting hints, flags " + XlibWrapper.hintsToString(hints.get_flags()));
}
XlibWrapper.XSetWMNormalHints(XToolkit.getDisplay(), window, hints.pData);
} finally {
XToolkit.awtUnlock();
}
}
public int getState() {
synchronized(getStateLock()) {
return state;
}
}
public void setState(int newState) {
synchronized(getStateLock()) {
if (!isShowing()) {
stateLog.finer("Frame is not showing");
state = newState;
return;
}
}
changeState(newState);
}
void changeState(int newState) {
int changed = state ^ newState;
int changeIconic = changed & Frame.ICONIFIED;
boolean iconic = (newState & Frame.ICONIFIED) != 0;
if (stateLog.isLoggable(PlatformLogger.Level.FINER)) {
stateLog.finer("Changing state, old state {0}, new state {1}(iconic {2})",
Integer.valueOf(state), Integer.valueOf(newState), Boolean.valueOf(iconic));
}
if (changeIconic != 0 && iconic) {
if (stateLog.isLoggable(PlatformLogger.Level.FINER)) {
stateLog.finer("Iconifying shell " + getShell() + ", this " + this + ", screen " + getScreenNumber());
}
XToolkit.awtLock();
try {
int res = XlibWrapper.XIconifyWindow(XToolkit.getDisplay(), getShell(), getScreenNumber());
if (stateLog.isLoggable(PlatformLogger.Level.FINER)) {
stateLog.finer("XIconifyWindow returned " + res);
}
}
finally {
XToolkit.awtUnlock();
}
}
if ((changed & ~Frame.ICONIFIED) != 0) {
setExtendedState(newState);
}
if (changeIconic != 0 && !iconic) {
if (stateLog.isLoggable(PlatformLogger.Level.FINER)) {
stateLog.finer("DeIconifying " + this);
}
xSetVisible(true);
}
}
void setExtendedState(int newState) {
XWM.getWM().setExtendedState(this, newState);
}
public void handlePropertyNotify(XEvent xev) {
super.handlePropertyNotify(xev);
XPropertyEvent ev = xev.get_xproperty();
if (log.isLoggable(PlatformLogger.Level.FINER)) {
log.finer("Property change {0}", ev);
}
/*
* Let's see if this is a window state protocol message, and
* if it is - decode a new state in terms of java constants.
*/
if (!XWM.getWM().isStateChange(this, ev)) {
stateLog.finer("either not a state atom or state has not been changed");
return;
}
final int newState = XWM.getWM().getState(this);
int changed = state ^ newState;
if (changed == 0) {
if (stateLog.isLoggable(PlatformLogger.Level.FINER)) {
stateLog.finer("State is the same: " + state);
}
return;
}
int old_state = state;
state = newState;
// sync target with peer
AWTAccessor.getFrameAccessor().setExtendedState((Frame)target, state);
if ((changed & Frame.ICONIFIED) != 0) {
if ((state & Frame.ICONIFIED) != 0) {
stateLog.finer("Iconified");
handleIconify();
} else {
stateLog.finer("DeIconified");
content.purgeIconifiedExposeEvents();
handleDeiconify();
}
}
handleStateChange(old_state, state);
}
// NOTE: This method may be called by privileged threads.
// DO NOT INVOKE CLIENT CODE ON THIS THREAD!
public void handleStateChange(int oldState, int newState) {
super.handleStateChange(oldState, newState);
for (ToplevelStateListener topLevelListenerTmp : toplevelStateListeners) {
topLevelListenerTmp.stateChangedJava(oldState, newState);
}
}
public void setVisible(boolean vis) {
if (vis) {
setupState(false);
} else {
if ((state & Frame.MAXIMIZED_BOTH) != 0) {
XWM.getWM().setExtendedState(this, state & ~Frame.MAXIMIZED_BOTH);
}
}
super.setVisible(vis);
if (vis && maxBounds != null) {
setMaximizedBounds(maxBounds);
}
}
void setInitialState(int wm_state) {
XToolkit.awtLock();
try {
XWMHints hints = getWMHints();
hints.set_flags((int)XUtilConstants.StateHint | hints.get_flags());
hints.set_initial_state(wm_state);
if (stateLog.isLoggable(PlatformLogger.Level.FINE)) {
stateLog.fine("Setting initial WM state on " + this + " to " + wm_state);
}
XlibWrapper.XSetWMHints(XToolkit.getDisplay(), getWindow(), hints.pData);
}
finally {
XToolkit.awtUnlock();
}
}
public void dispose() {
if (menubarPeer != null) {
menubarPeer.dispose();
}
super.dispose();
}
boolean isMaximized() {
return (state & (Frame.MAXIMIZED_VERT | Frame.MAXIMIZED_HORIZ)) != 0;
}
static final int CROSSHAIR_INSET = 5;
static final int BUTTON_Y = CROSSHAIR_INSET + 1;
static final int BUTTON_W = 17;
static final int BUTTON_H = 17;
static final int SYS_MENU_X = CROSSHAIR_INSET + 1;
static final int SYS_MENU_CONTAINED_X = SYS_MENU_X + 5;
static final int SYS_MENU_CONTAINED_Y = BUTTON_Y + 7;
static final int SYS_MENU_CONTAINED_W = 8;
static final int SYS_MENU_CONTAINED_H = 3;
static final int MAXIMIZE_X_DIFF = CROSSHAIR_INSET + BUTTON_W;
static final int MAXIMIZE_CONTAINED_X_DIFF = MAXIMIZE_X_DIFF - 5;
static final int MAXIMIZE_CONTAINED_Y = BUTTON_Y + 5;
static final int MAXIMIZE_CONTAINED_W = 8;
static final int MAXIMIZE_CONTAINED_H = 8;
static final int MINIMIZE_X_DIFF = MAXIMIZE_X_DIFF + BUTTON_W;
static final int MINIMIZE_CONTAINED_X_DIFF = MINIMIZE_X_DIFF - 7;
static final int MINIMIZE_CONTAINED_Y = BUTTON_Y + 7;
static final int MINIMIZE_CONTAINED_W = 3;
static final int MINIMIZE_CONTAINED_H = 3;
static final int TITLE_X = SYS_MENU_X + BUTTON_W;
static final int TITLE_W_DIFF = BUTTON_W * 3 + CROSSHAIR_INSET * 2 - 1;
static final int TITLE_MID_Y = BUTTON_Y + (BUTTON_H / 2);
static final int MENUBAR_X = CROSSHAIR_INSET + 1;
static final int MENUBAR_Y = BUTTON_Y + BUTTON_H;
static final int HORIZ_RESIZE_INSET = CROSSHAIR_INSET + BUTTON_H;
static final int VERT_RESIZE_INSET = CROSSHAIR_INSET + BUTTON_W;
/*
* Print the native component by rendering the Motif look ourselves.
* We also explicitly print the MenuBar since a MenuBar isn't a subclass
* of Component (and thus it has no "print" method which gets called by
* default).
*/
public void print(Graphics g) {
super.print(g);
Frame f = (Frame)target;
Insets finsets = f.getInsets();
Dimension fsize = f.getSize();
Color bg = f.getBackground();
Color fg = f.getForeground();
Color highlight = bg.brighter();
Color shadow = bg.darker();
// Well, we could query for the currently running window manager
// and base the look on that, or we could just always do dtwm.
// aim, tball, and levenson all agree we'll just do dtwm.
if (hasDecorations(XWindowAttributesData.AWT_DECOR_BORDER)) {
// top outer -- because we'll most likely be drawing on white paper,
// for aesthetic reasons, don't make any part of the outer border
// pure white
if (highlight.equals(Color.white)) {
g.setColor(new Color(230, 230, 230));
}
else {
g.setColor(highlight);
}
g.drawLine(0, 0, fsize.width, 0);
g.drawLine(0, 1, fsize.width - 1, 1);
// left outer
// if (highlight.equals(Color.white)) {
// g.setColor(new Color(230, 230, 230));
// }
// else {
// g.setColor(highlight);
// }
g.drawLine(0, 0, 0, fsize.height);
g.drawLine(1, 0, 1, fsize.height - 1);
// bottom cross-hair
g.setColor(highlight);
g.drawLine(CROSSHAIR_INSET + 1, fsize.height - CROSSHAIR_INSET,
fsize.width - CROSSHAIR_INSET,
fsize.height - CROSSHAIR_INSET);
// right cross-hair
// g.setColor(highlight);
g.drawLine(fsize.width - CROSSHAIR_INSET, CROSSHAIR_INSET + 1,
fsize.width - CROSSHAIR_INSET,
fsize.height - CROSSHAIR_INSET);
// bottom outer
g.setColor(shadow);
g.drawLine(1, fsize.height, fsize.width, fsize.height);
g.drawLine(2, fsize.height - 1, fsize.width, fsize.height - 1);
// right outer
// g.setColor(shadow);
g.drawLine(fsize.width, 1, fsize.width, fsize.height);
g.drawLine(fsize.width - 1, 2, fsize.width - 1, fsize.height);
// top cross-hair
// g.setColor(shadow);
g.drawLine(CROSSHAIR_INSET, CROSSHAIR_INSET,
fsize.width - CROSSHAIR_INSET, CROSSHAIR_INSET);
// left cross-hair
// g.setColor(shadow);
g.drawLine(CROSSHAIR_INSET, CROSSHAIR_INSET, CROSSHAIR_INSET,
fsize.height - CROSSHAIR_INSET);
}
if (hasDecorations(XWindowAttributesData.AWT_DECOR_TITLE)) {
if (hasDecorations(XWindowAttributesData.AWT_DECOR_MENU)) {
// system menu
g.setColor(bg);
g.fill3DRect(SYS_MENU_X, BUTTON_Y, BUTTON_W, BUTTON_H, true);
g.fill3DRect(SYS_MENU_CONTAINED_X, SYS_MENU_CONTAINED_Y,
SYS_MENU_CONTAINED_W, SYS_MENU_CONTAINED_H, true);
}
// title bar
// g.setColor(bg);
g.fill3DRect(TITLE_X, BUTTON_Y, fsize.width - TITLE_W_DIFF, BUTTON_H,
true);
if (hasDecorations(XWindowAttributesData.AWT_DECOR_MINIMIZE)) {
// minimize button
// g.setColor(bg);
g.fill3DRect(fsize.width - MINIMIZE_X_DIFF, BUTTON_Y, BUTTON_W,
BUTTON_H, true);
g.fill3DRect(fsize.width - MINIMIZE_CONTAINED_X_DIFF,
MINIMIZE_CONTAINED_Y, MINIMIZE_CONTAINED_W,
MINIMIZE_CONTAINED_H, true);
}
if (hasDecorations(XWindowAttributesData.AWT_DECOR_MAXIMIZE)) {
// maximize button
// g.setColor(bg);
g.fill3DRect(fsize.width - MAXIMIZE_X_DIFF, BUTTON_Y, BUTTON_W,
BUTTON_H, true);
g.fill3DRect(fsize.width - MAXIMIZE_CONTAINED_X_DIFF,
MAXIMIZE_CONTAINED_Y, MAXIMIZE_CONTAINED_W,
MAXIMIZE_CONTAINED_H, true);
}
// title bar text
g.setColor(fg);
Font sysfont = new Font(Font.SANS_SERIF, Font.PLAIN, 10);
g.setFont(sysfont);
FontMetrics sysfm = g.getFontMetrics();
String ftitle = f.getTitle();
g.drawString(ftitle,
((TITLE_X + TITLE_X + fsize.width - TITLE_W_DIFF) / 2) -
(sysfm.stringWidth(ftitle) / 2),
TITLE_MID_Y + sysfm.getMaxDescent());
}
if (f.isResizable() &&
hasDecorations(XWindowAttributesData.AWT_DECOR_RESIZEH)) {
// add resize cross hairs
// upper-left horiz (shadow)
g.setColor(shadow);
g.drawLine(1, HORIZ_RESIZE_INSET, CROSSHAIR_INSET,
HORIZ_RESIZE_INSET);
// upper-left vert (shadow)
// g.setColor(shadow);
g.drawLine(VERT_RESIZE_INSET, 1, VERT_RESIZE_INSET, CROSSHAIR_INSET);
// upper-right horiz (shadow)
// g.setColor(shadow);
g.drawLine(fsize.width - CROSSHAIR_INSET + 1, HORIZ_RESIZE_INSET,
fsize.width, HORIZ_RESIZE_INSET);
// upper-right vert (shadow)
// g.setColor(shadow);
g.drawLine(fsize.width - VERT_RESIZE_INSET - 1, 2,
fsize.width - VERT_RESIZE_INSET - 1, CROSSHAIR_INSET + 1);
// lower-left horiz (shadow)
// g.setColor(shadow);
g.drawLine(1, fsize.height - HORIZ_RESIZE_INSET - 1,
CROSSHAIR_INSET, fsize.height - HORIZ_RESIZE_INSET - 1);
// lower-left vert (shadow)
// g.setColor(shadow);
g.drawLine(VERT_RESIZE_INSET, fsize.height - CROSSHAIR_INSET + 1,
VERT_RESIZE_INSET, fsize.height);
// lower-right horiz (shadow)
// g.setColor(shadow);
g.drawLine(fsize.width - CROSSHAIR_INSET + 1,
fsize.height - HORIZ_RESIZE_INSET - 1, fsize.width,
fsize.height - HORIZ_RESIZE_INSET - 1);
// lower-right vert (shadow)
// g.setColor(shadow);
g.drawLine(fsize.width - VERT_RESIZE_INSET - 1,
fsize.height - CROSSHAIR_INSET + 1,
fsize.width - VERT_RESIZE_INSET - 1, fsize.height);
// upper-left horiz (highlight)
g.setColor(highlight);
g.drawLine(2, HORIZ_RESIZE_INSET + 1, CROSSHAIR_INSET,
HORIZ_RESIZE_INSET + 1);
// upper-left vert (highlight)
// g.setColor(highlight);
g.drawLine(VERT_RESIZE_INSET + 1, 2, VERT_RESIZE_INSET + 1,
CROSSHAIR_INSET);
// upper-right horiz (highlight)
// g.setColor(highlight);
g.drawLine(fsize.width - CROSSHAIR_INSET + 1,
HORIZ_RESIZE_INSET + 1, fsize.width - 1,
HORIZ_RESIZE_INSET + 1);
// upper-right vert (highlight)
// g.setColor(highlight);
g.drawLine(fsize.width - VERT_RESIZE_INSET, 2,
fsize.width - VERT_RESIZE_INSET, CROSSHAIR_INSET);
// lower-left horiz (highlight)
// g.setColor(highlight);
g.drawLine(2, fsize.height - HORIZ_RESIZE_INSET, CROSSHAIR_INSET,
fsize.height - HORIZ_RESIZE_INSET);
// lower-left vert (highlight)
// g.setColor(highlight);
g.drawLine(VERT_RESIZE_INSET + 1,
fsize.height - CROSSHAIR_INSET + 1,
VERT_RESIZE_INSET + 1, fsize.height - 1);
// lower-right horiz (highlight)
// g.setColor(highlight);
g.drawLine(fsize.width - CROSSHAIR_INSET + 1,
fsize.height - HORIZ_RESIZE_INSET, fsize.width - 1,
fsize.height - HORIZ_RESIZE_INSET);
// lower-right vert (highlight)
// g.setColor(highlight);
g.drawLine(fsize.width - VERT_RESIZE_INSET,
fsize.height - CROSSHAIR_INSET + 1,
fsize.width - VERT_RESIZE_INSET, fsize.height - 1);
}
XMenuBarPeer peer = menubarPeer;
if (peer != null) {
Insets insets = getInsets();
Graphics ng = g.create();
int menubarX = 0;
int menubarY = 0;
if (hasDecorations(XWindowAttributesData.AWT_DECOR_BORDER)) {
menubarX += CROSSHAIR_INSET + 1;
menubarY += CROSSHAIR_INSET + 1;
}
if (hasDecorations(XWindowAttributesData.AWT_DECOR_TITLE)) {
menubarY += BUTTON_H;
}
try {
ng.translate(menubarX, menubarY);
peer.print(ng);
} finally {
ng.dispose();
}
}
}
public void setBoundsPrivate(int x, int y, int width, int height) {
setBounds(x, y, width, height, SET_BOUNDS);
}
public Rectangle getBoundsPrivate() {
return getBounds();
}
public void emulateActivation(boolean doActivate) {
if (doActivate) {
handleWindowFocusIn(0);
} else {
handleWindowFocusOut(null, 0);
}
}
}
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