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

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  35
  36 #include <X11/Xlib.h>
  37 #include <X11/Xutil.h>
  38 #include <X11/Intrinsic.h>
  39
  40 #include "jawt.h"
  41 #include "jawt_md.h"
  42 #include "nativeview.h"
  43
  44 #define MY_ASSERT(X,S) if (!X) { fprintf(stderr,S); return 0L;}
  45
  46 #define SYSTEM_WIN32   1
  47 #define SYSTEM_WIN16   2
  48 #define SYSTEM_JAVA    3
  49 #define SYSTEM_OS2     4
  50 #define SYSTEM_MAC     5
  51 #define SYSTEM_XWINDOW 6
  52
  53 /*****************************************************************************/
  54 /*
  55  * Class:     NativeView
  56  * Method:    getNativeWindowSystemType
  57  * Signature: ()I
  58  */
  59 JNIEXPORT jint JNICALL Java_NativeView_getNativeWindowSystemType
  60   (JNIEnv * env, jobject obj_this)
  61 {
  62     return SYSTEM_XWINDOW;
  63 }
  64
  65 /*****************************************************************************/
  66 /*
  67  * Class:     NativeView
  68  * Method:    getNativeWindow
  69  * Signature: ()J
  70  */
  71 JNIEXPORT jlong JNICALL Java_NativeView_getNativeWindow
  72   (JNIEnv * env, jobject obj_this)
  73 {
  74     jboolean                    result  ;
  75     jint                        lock    ;
  76     JAWT                        awt     ;
  77     JAWT_DrawingSurface*        ds      ;
  78     JAWT_DrawingSurfaceInfo*    dsi     ;
  79     JAWT_X11DrawingSurfaceInfo* dsi_x11 ;
  80     Drawable                    drawable;
  81
  82     /* Get the AWT */
  83     awt.version = JAWT_VERSION_1_3;
  84     result      = JAWT_GetAWT(env, &awt);
  85     MY_ASSERT(result != JNI_FALSE,"wrong jawt version");
  86
  87     /* Get the drawing surface */
  88     if ((ds = awt.GetDrawingSurface(env, obj_this)) == NULL)
  89         return 0L;
  90
  91     /* Lock the drawing surface */
  92     lock = ds->Lock(ds);
  93     MY_ASSERT((lock & JAWT_LOCK_ERROR)==0,"can't lock the drawing surface");
  94
  95     /* Get the drawing surface info */
  96     dsi = ds->GetDrawingSurfaceInfo(ds);
  97
  98     /* Get the platform-specific drawing info */
  99     dsi_x11  = (JAWT_X11DrawingSurfaceInfo*)dsi->platformInfo;
 100     drawable = dsi_x11->drawable;
 101
 102     /* Free the drawing surface info */
 103     ds->FreeDrawingSurfaceInfo(dsi);
 104     /* Unlock the drawing surface */
 105     ds->Unlock(ds);
 106     /* Free the drawing surface */
 107     awt.FreeDrawingSurface(ds);
 108
 109     return (jlong)drawable;
 110 }
 111
 112 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */