odk/examples/DevelopersGuide/OfficeDev/DesktopEnvironment/nativelib/unix/nativeview.c

   1 /*************************************************************************
   2  *
   3  *  $RCSfile: nativeview.c,v $
   4  *
   5  *  $Revision: 1.4 $
   6  *
   7  *  last change: $Author: rt $ $Date: 2005-01-31 16:41:12 $
   8  *
   9  *  The Contents of this file are made available subject to the terms of
  10  *  the BSD license.
  11  *
  12  *  Copyright (c) 2003 by Sun Microsystems, Inc.
  13  *  All rights reserved.
  14  *
  15  *  Redistribution and use in source and binary forms, with or without
  16  *  modification, are permitted provided that the following conditions
  17  *  are met:
  18  *  1. Redistributions of source code must retain the above copyright
  19  *     notice, this list of conditions and the following disclaimer.
  20  *  2. Redistributions in binary form must reproduce the above copyright
  21  *     notice, this list of conditions and the following disclaimer in the
  22  *     documentation and/or other materials provided with the distribution.
  23  *  3. Neither the name of Sun Microsystems, Inc. nor the names of its
  24  *     contributors may be used to endorse or promote products derived
  25  *     from this software without specific prior written permission.
  26  *
  27  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  28  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  29  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  30  *  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  31  *  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  32  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  33  *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  34  *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  35  *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  36  *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  37  *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  38  *
  39  *************************************************************************/
  40
  41 #include <X11/Xlib.h>
  42 #include <X11/Xutil.h>
  43 #include <X11/Intrinsic.h>
  44
  45 #include "jawt.h"
  46 #include "jawt_md.h"
  47 #include "nativeview.h"
  48
  49 #define MY_ASSERT(X,S) if (!X) { fprintf(stderr,S); return 0L;}
  50
  51 #define SYSTEM_WIN32   1
  52 #define SYSTEM_WIN16   2
  53 #define SYSTEM_JAVA    3
  54 #define SYSTEM_OS2     4
  55 #define SYSTEM_MAC     5
  56 #define SYSTEM_XWINDOW 6
  57
  58 /*****************************************************************************/
  59 /*
  60  * Class:     NativeView
  61  * Method:    getNativeWindowSystemType
  62  * Signature: ()I
  63  */
  64 JNIEXPORT jint JNICALL Java_NativeView_getNativeWindowSystemType
  65   (JNIEnv * env, jobject obj_this)
  66 {
  67     return (SYSTEM_XWINDOW);
  68 }
  69
  70 /*****************************************************************************/
  71 /*
  72  * Class:     NativeView
  73  * Method:    getNativeWindow
  74  * Signature: ()J
  75  */
  76 JNIEXPORT jlong JNICALL Java_NativeView_getNativeWindow
  77   (JNIEnv * env, jobject obj_this)
  78 {
  79     jboolean                    result  ;
  80     jint                        lock    ;
  81     JAWT                        awt     ;
  82     JAWT_DrawingSurface*        ds      ;
  83     JAWT_DrawingSurfaceInfo*    dsi     ;
  84     JAWT_X11DrawingSurfaceInfo* dsi_x11 ;
  85     Drawable                    drawable;
  86     Display*                    display ;
  87
  88     /* Get the AWT */
  89     awt.version = JAWT_VERSION_1_3;
  90     result      = JAWT_GetAWT(env, &awt);
  91     MY_ASSERT(result != JNI_FALSE,"wrong jawt version");
  92
  93     /* Get the drawing surface */
  94     if ((ds = awt.GetDrawingSurface(env, obj_this)) == NULL)
  95         return 0L;
  96
  97     /* Lock the drawing surface */
  98     lock = ds->Lock(ds);
  99     MY_ASSERT((lock & JAWT_LOCK_ERROR)==0,"can't lock the drawing surface");
 100
 101     /* Get the drawing surface info */
 102     dsi = ds->GetDrawingSurfaceInfo(ds);
 103
 104     /* Get the platform-specific drawing info */
 105     dsi_x11  = (JAWT_X11DrawingSurfaceInfo*)dsi->platformInfo;
 106     drawable = dsi_x11->drawable;
 107     display  = dsi_x11->display;
 108
 109     /* Free the drawing surface info */
 110     ds->FreeDrawingSurfaceInfo(dsi);
 111     /* Unlock the drawing surface */
 112     ds->Unlock(ds);
 113     /* Free the drawing surface */
 114     awt.FreeDrawingSurface(ds);
 115
 116     return ((jlong)drawable);
 117 }