1 /*

     2  * Copyright 1999-2001 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any questions.

    24  */

    25 #ifdef HEADLESS

    26     #error This file should not be included in headless library

    27 #endif

    28 

    29 #include "awt_p.h"

    30 #include "awt_Component.h"

    31 #include "sun_awt_motif_MComponentPeer.h"

    32 

    33 #include "jni.h"

    34 #include "jni_util.h"

    35 

    36 static jfieldID xID;

    37 static jfieldID yID;

    38 

    39 extern struct MComponentPeerIDs mComponentPeerIDs;

    40 extern struct ComponentIDs componentIDs;

    41 extern struct ContainerIDs containerIDs;

    42 extern jobject getCurComponent();

    43 

    44 /*

    45  * Class:     sun_awt_motif_MGlobalCursorManager

    46  * Method:    cacheInit

    47  * Signature: ()V

    48  */

    49 JNIEXPORT void JNICALL Java_sun_awt_motif_MGlobalCursorManager_cacheInit

    50   (JNIEnv *env, jclass cls)

    51 {

    52     jclass clsDimension = (*env)->FindClass(env, "java/awt/Point");

    53     xID = (*env)->GetFieldID(env, clsDimension, "x", "I");

    54     yID = (*env)->GetFieldID(env, clsDimension, "y", "I");

    55 }

    56 

    57 /*

    58  * Class:     sun_awt_motif_MGlobalCursorManager

    59  * Method:    getCursorPos

    60  * Signature: (Ljava/awt/Point;)Ljava/awt/Component

    61  */

    62 JNIEXPORT void JNICALL Java_sun_awt_motif_MGlobalCursorManager_getCursorPos

    63   (JNIEnv *env, jobject this, jobject point)

    64 {

    65     Window root, rw, cw;

    66     int32_t rx, ry, x, y;

    67     uint32_t kbs;

    68 

    69     AWT_LOCK();

    70     root = RootWindow(awt_display, DefaultScreen(awt_display));

    71     XQueryPointer(awt_display, root, &rw, &cw, &rx, &ry, &x, &y, &kbs);

    72 

    73     (*env)->SetIntField(env, point, xID, rx);

    74     (*env)->SetIntField(env, point, yID, ry);

    75     AWT_FLUSH_UNLOCK();

    76 }

    77 

    78 /*

    79  * Class:     sun_awt_motif_MGlobalCursorManager

    80  * Method:    getCursorPos

    81  * Signature: ()Ljava/awt/Component

    82  */

    83 JNIEXPORT jobject JNICALL Java_sun_awt_motif_MGlobalCursorManager_findHeavyweightUnderCursor

    84   (JNIEnv *env, jobject this)

    85 {

    86         jobject target;

    87 

    88     AWT_LOCK();

    89         target = getCurComponent();

    90     AWT_FLUSH_UNLOCK();

    91         return target;

    92 }

    93 

    94 /*

    95  * Class:     sun_awt_motif_MGlobalCursorManager

    96  * Method:    getLocationOnScreen

    97  * Signature: (Ljava/awt/Component;)Ljava/awt/Point

    98  */

    99 JNIEXPORT jobject JNICALL Java_sun_awt_motif_MGlobalCursorManager_getLocationOnScreen

   100   (JNIEnv *env, jobject this, jobject component)

   101 {

   102     jobject point =

   103         (*env)->CallObjectMethod(env, component,

   104                                  componentIDs.getLocationOnScreen);

   105     return point;

   106 }

   107 

   108 /*

   109  * Class:     sun_awt_motif_MGlobalCursorManager

   110  * Method:    findComponentAt

   111  * Signature: (Ljava/awt/Container;II)Ljava/awt/Component

   112  */

   113 JNIEXPORT jobject JNICALL

   114 Java_sun_awt_motif_MGlobalCursorManager_findComponentAt

   115     (JNIEnv *env, jobject this, jobject container, jint x, jint y)

   116 {

   117     /*

   118      * Call private version of Container.findComponentAt with the following

   119      * flag set: ignoreEnabled = false (i.e., don't return or recurse into

   120      * disabled Components).

   121      * NOTE: it may return a JRootPane's glass pane as the target Component.

   122      */

   123     jobject component =

   124         (*env)->CallObjectMethod(env, container, containerIDs.findComponentAt,

   125                                  x, y, JNI_FALSE);

   126     return component;

   127 }