bean/native/unix/com_sun_star_comp_beans_LocalOfficeWindow.c

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sal/config.h>
  21
  22 #include <X11/Xlib.h>
  23 #include <X11/Xutil.h>
  24 #include <X11/Intrinsic.h>
  25
  26 #include <jni.h>
  27
  28 #include <jawt_md.h>
  29 #include <jawt.h>
  30
  31 #include <sal/types.h>
  32
  33 #define SYSTEM_XWINDOW 6
  34
  35
  36 /* type must be something like java/lang/RuntimeException
  37  */
  38 static void ThrowException(JNIEnv * env, char const * type, char const * msg) {
  39     jclass c;
  40     (*env)->ExceptionClear(env);
  41     c = (*env)->FindClass(env, type);
  42     if (c == NULL) {
  43         (*env)->ExceptionClear(env);
  44         (*env)->FatalError(
  45             env, "JNI FindClass failed");
  46     }
  47     if ((*env)->ThrowNew(env, c, msg) != 0) {
  48         (*env)->ExceptionClear(env);
  49         (*env)->FatalError(env, "JNI ThrowNew failed");
  50     }
  51 }
  52
  53 /*****************************************************************************/
  54 /*
  55  * Class:     com_sun_star_comp_beans_LocalOfficeWindow
  56  * Method:    getNativeWindowSystemType
  57  * Signature: ()I
  58  */
  59 SAL_DLLPUBLIC_EXPORT jint JNICALL Java_com_sun_star_comp_beans_LocalOfficeWindow_getNativeWindowSystemType
  60   (JNIEnv * env, jobject obj_this)
  61 {
  62     (void) env; /* avoid warning about unused parameter */
  63     (void) obj_this; /* avoid warning about unused parameter */
  64     return SYSTEM_XWINDOW;
  65 }
  66
  67
  68 /*****************************************************************************/
  69 /*
  70  * Class:     com_sun_star_beans_LocalOfficeWindow
  71  * Method:    getNativeWindow
  72  * Signature: ()J
  73  */
  74 SAL_DLLPUBLIC_EXPORT jlong JNICALL Java_com_sun_star_comp_beans_LocalOfficeWindow_getNativeWindow
  75   (JNIEnv * env, jobject obj_this)
  76 {
  77     jboolean result;
  78     jint lock;
  79
  80     JAWT awt;
  81     JAWT_DrawingSurface* ds;
  82     JAWT_DrawingSurfaceInfo* dsi;
  83     JAWT_X11DrawingSurfaceInfo* dsi_x11;
  84
  85     Drawable drawable;
  86
  87     /* Get the AWT */
  88     awt.version = JAWT_VERSION_1_3;
  89     result = JAWT_GetAWT(env, &awt);
  90     if (!result)
  91         ThrowException(env, "java/lang/RuntimeException", "JAWT_GetAWT failed");
  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     if ( (lock & JAWT_LOCK_ERROR) != 0)
 100         ThrowException(env, "java/lang/RuntimeException",
 101                        "Could not get AWT drawing surface.");
 102
 103     /* Get the drawing surface info */
 104     dsi = ds->GetDrawingSurfaceInfo(ds);
 105
 106     /* Get the platform-specific drawing info */
 107     dsi_x11 = (JAWT_X11DrawingSurfaceInfo*)dsi->platformInfo;
 108
 109     drawable = dsi_x11->drawable;
 110
 111     /* Free the drawing surface info */
 112     ds->FreeDrawingSurfaceInfo(dsi);
 113     /* Unlock the drawing surface */
 114     ds->Unlock(ds);
 115     /* Free the drawing surface */
 116     awt.FreeDrawingSurface(ds);
 117
 118     return (jlong)drawable;
 119 }
 120
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 131 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */