author | ohair |
Wed, 06 Apr 2011 22:06:11 -0700 | |
changeset 9035 | 1255eb81cc2f |
parent 8133 | c7e4a02e928e |
child 13604 | 31089af1a447 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.awt.X11; |
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import java.awt.*; |
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import java.awt.peer.ComponentPeer; |
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import java.awt.peer.LightweightPeer; |
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import java.lang.ref.WeakReference; |
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import java.lang.reflect.Field; |
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import java.lang.reflect.Method; |
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import sun.awt.AWTAccessor; |
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import sun.awt.GlobalCursorManager; |
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import sun.awt.SunToolkit; |
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public final class XGlobalCursorManager extends GlobalCursorManager { |
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private static Field field_pData; |
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private static Field field_type; |
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private static Class cursorClass; |
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private static Method method_setPData; |
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static { |
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cursorClass = java.awt.Cursor.class; |
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field_pData = SunToolkit.getField(cursorClass, "pData"); |
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field_type = SunToolkit.getField(cursorClass, "type"); |
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method_setPData = SunToolkit.getMethod(cursorClass, "setPData", new Class[] {long.class}); |
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if (field_pData == null || field_type == null || method_setPData == null) { |
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System.out.println("Unable to initialize XGlobalCursorManager: "); |
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Thread.dumpStack(); |
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} |
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} |
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// cached nativeContainer |
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private WeakReference<Component> nativeContainer; |
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/** |
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* The XGlobalCursorManager is a singleton. |
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*/ |
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private static XGlobalCursorManager manager; |
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static GlobalCursorManager getCursorManager() { |
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if (manager == null) { |
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manager = new XGlobalCursorManager(); |
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} |
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return manager; |
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} |
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/** |
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* Should be called in response to a native mouse enter or native mouse |
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* button released message. Should not be called during a mouse drag. |
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*/ |
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static void nativeUpdateCursor(Component heavy) { |
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XGlobalCursorManager.getCursorManager().updateCursorLater(heavy); |
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} |
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protected void setCursor(Component comp, Cursor cursor, boolean useCache) { |
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if (comp == null) { |
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return; |
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} |
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Cursor cur = useCache ? cursor : getCapableCursor(comp); |
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Component nc = null; |
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if (useCache) { |
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synchronized (this) { |
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nc = nativeContainer.get(); |
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} |
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} else { |
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nc = SunToolkit.getHeavyweightComponent(comp); |
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} |
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if (nc != null) { |
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ComponentPeer nc_peer = AWTAccessor.getComponentAccessor().getPeer(nc); |
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if (nc_peer instanceof XComponentPeer) { |
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synchronized (this) { |
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nativeContainer = new WeakReference<Component>(nc); |
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} |
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//6431076. A subcomponents (a XTextArea in particular) |
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//may want to override the cursor over some of their parts. |
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((XComponentPeer)nc_peer).pSetCursor(cur, false); |
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// in case of grab we do for Swing we need to update keep cursor updated |
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// (we don't need this in case of AWT menus). Window Manager consider |
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// the grabber as a current window and use its cursor. So we need to |
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// change cursor on the grabber too. |
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updateGrabbedCursor(cur); |
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} |
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} |
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} |
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/** |
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* Updates cursor on the grabber if it is window peer (i.e. current grab is for |
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* Swing, not for AWT. |
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*/ |
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private static void updateGrabbedCursor(Cursor cur) { |
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XBaseWindow target = XAwtState.getGrabWindow(); |
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if (target instanceof XWindowPeer) { |
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XWindowPeer grabber = (XWindowPeer) target; |
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grabber.pSetCursor(cur); |
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} |
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} |
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protected void updateCursorOutOfJava() { |
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// in case we have grabbed input for Swing we need to reset cursor |
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// when mouse pointer is out of any java toplevel. |
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// let's use default cursor for this. |
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updateGrabbedCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR)); |
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} |
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protected void getCursorPos(Point p) { |
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if (!((XToolkit)Toolkit.getDefaultToolkit()).getLastCursorPos(p)) { |
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XToolkit.awtLock(); |
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try { |
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long display = XToolkit.getDisplay(); |
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long root_window = XlibWrapper.RootWindow(display, |
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XlibWrapper.DefaultScreen(display)); |
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XlibWrapper.XQueryPointer(display, root_window, |
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XlibWrapper.larg1, |
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XlibWrapper.larg2, |
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XlibWrapper.larg3, |
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XlibWrapper.larg4, |
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XlibWrapper.larg5, |
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XlibWrapper.larg6, |
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XlibWrapper.larg7); |
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p.x = (int) XlibWrapper.unsafe.getInt(XlibWrapper.larg3); |
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p.y = (int) XlibWrapper.unsafe.getInt(XlibWrapper.larg4); |
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} finally { |
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XToolkit.awtUnlock(); |
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} |
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} |
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} |
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protected Component findHeavyweightUnderCursor() { |
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return XAwtState.getComponentMouseEntered(); |
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} |
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/* |
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* two native methods to call corresponding methods in Container and |
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* Component |
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*/ |
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protected Component findComponentAt(Container con, int x, int y) { |
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return con.findComponentAt(x,y); |
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} |
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protected Point getLocationOnScreen(Component c) { |
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return c.getLocationOnScreen(); |
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} |
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protected Component findHeavyweightUnderCursor(boolean useCache) { |
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return findHeavyweightUnderCursor(); |
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} |
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private Cursor getCapableCursor(Component comp) { |
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AWTAccessor.ComponentAccessor compAccessor = AWTAccessor.getComponentAccessor(); |
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Component c = comp; |
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while ((c != null) && !(c instanceof Window) |
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&& compAccessor.isEnabled(c) |
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&& compAccessor.isVisible(c) |
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&& compAccessor.isDisplayable(c)) |
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{ |
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c = compAccessor.getParent(c); |
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} |
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if (c instanceof Window) { |
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return (compAccessor.isEnabled(c) |
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&& compAccessor.isVisible(c) |
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&& compAccessor.isDisplayable(c) |
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&& compAccessor.isEnabled(comp)) |
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compAccessor.getCursor(comp) |
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: |
202 |
Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR); |
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} else if (c == null) { |
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return null; |
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} |
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return getCapableCursor(compAccessor.getParent(c)); |
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} |
208 |
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209 |
/* This methods needs to be called from within XToolkit.awtLock / XToolkit.awtUnlock section. */ |
|
210 |
||
211 |
static long getCursor(Cursor c) { |
|
212 |
||
213 |
long pData = 0; |
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214 |
int type = 0; |
|
215 |
try { |
|
216 |
pData = field_pData.getLong(c); |
|
217 |
type = field_type.getInt(c); |
|
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} |
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catch (Exception e) |
|
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{ |
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e.printStackTrace(); |
|
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} |
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224 |
if (pData != 0) return pData; |
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226 |
int cursorType = 0; |
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227 |
switch (type) { |
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case Cursor.DEFAULT_CURSOR: |
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cursorType = XCursorFontConstants.XC_left_ptr; |
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break; |
231 |
case Cursor.CROSSHAIR_CURSOR: |
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232 |
cursorType = XCursorFontConstants.XC_crosshair; |
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break; |
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case Cursor.TEXT_CURSOR: |
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235 |
cursorType = XCursorFontConstants.XC_xterm; |
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break; |
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case Cursor.WAIT_CURSOR: |
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238 |
cursorType = XCursorFontConstants.XC_watch; |
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break; |
240 |
case Cursor.SW_RESIZE_CURSOR: |
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241 |
cursorType = XCursorFontConstants.XC_bottom_left_corner; |
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break; |
243 |
case Cursor.NW_RESIZE_CURSOR: |
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diff
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244 |
cursorType = XCursorFontConstants.XC_top_left_corner; |
2 | 245 |
break; |
246 |
case Cursor.SE_RESIZE_CURSOR: |
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247 |
cursorType = XCursorFontConstants.XC_bottom_right_corner; |
2 | 248 |
break; |
249 |
case Cursor.NE_RESIZE_CURSOR: |
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250 |
cursorType = XCursorFontConstants.XC_top_right_corner; |
2 | 251 |
break; |
252 |
case Cursor.S_RESIZE_CURSOR: |
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253 |
cursorType = XCursorFontConstants.XC_bottom_side; |
2 | 254 |
break; |
255 |
case Cursor.N_RESIZE_CURSOR: |
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256 |
cursorType = XCursorFontConstants.XC_top_side; |
2 | 257 |
break; |
258 |
case Cursor.W_RESIZE_CURSOR: |
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259 |
cursorType = XCursorFontConstants.XC_left_side; |
2 | 260 |
break; |
261 |
case Cursor.E_RESIZE_CURSOR: |
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262 |
cursorType = XCursorFontConstants.XC_right_side; |
2 | 263 |
break; |
264 |
case Cursor.HAND_CURSOR: |
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265 |
cursorType = XCursorFontConstants.XC_hand2; |
2 | 266 |
break; |
267 |
case Cursor.MOVE_CURSOR: |
|
439
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268 |
cursorType = XCursorFontConstants.XC_fleur; |
2 | 269 |
break; |
270 |
} |
|
271 |
||
272 |
XToolkit.awtLock(); |
|
273 |
try { |
|
274 |
pData =(long) XlibWrapper.XCreateFontCursor(XToolkit.getDisplay(), cursorType); |
|
275 |
} |
|
276 |
finally { |
|
277 |
XToolkit.awtUnlock(); |
|
278 |
} |
|
279 |
||
280 |
setPData(c,pData); |
|
281 |
return pData; |
|
282 |
} |
|
283 |
||
284 |
||
285 |
static void setPData(Cursor c, long pData) { |
|
286 |
try { |
|
287 |
method_setPData.invoke(c, pData); |
|
288 |
} |
|
289 |
catch (Exception e) |
|
290 |
{ |
|
291 |
e.printStackTrace(); |
|
292 |
} |
|
293 |
||
294 |
} |
|
295 |
} |