Subversion Repositories openrisc

/* gdkrobotpeer.c

   Copyright (C) 2004 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2, or (at your option)

any later version.

GNU Classpath is distributed in the hope that it will be useful, but

WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

General Public License for more details.

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

along with GNU Classpath; see the file COPYING.  If not, write to the

Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301 USA.

Linking this library statically or dynamically with other modules is

making a combined work based on this library.  Thus, the terms and

conditions of the GNU General Public License cover the whole

combination.

As a special exception, the copyright holders of this library give you

permission to link this library with independent modules to produce an

executable, regardless of the license terms of these independent

modules, and to copy and distribute the resulting executable under

terms of your choice, provided that you also meet, for each linked

independent module, the terms and conditions of the license of that

module.  An independent module is a module which is not derived from

or based on this library.  If you modify this library, you may extend

this exception to your version of the library, but you are not

obligated to do so.  If you do not wish to do so, delete this

exception statement from your version. */

#include "gtkpeer.h"

#include "gnu_java_awt_peer_gtk_GdkRobotPeer.h"

#ifdef HAVE_XTEST

#include <gdk/gdkx.h>

#include <X11/extensions/XTest.h>

#endif

#ifdef HAVE_XTEST

static int

awt_button_mask_to_num (int buttons)

{

  switch (buttons)

    {

    case AWT_BUTTON1_MASK:

      return 1;

    case AWT_BUTTON2_MASK:

      return 2;

    case AWT_BUTTON3_MASK:

      return 3;

    }

  return 0;

}

#endif

JNIEXPORT jboolean JNICALL

Java_gnu_java_awt_peer_gtk_GdkRobotPeer_initXTest

  (JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)))

{

#ifdef HAVE_XTEST

  GdkDisplay *display;

  Display *xdisplay;

  int event_basep;

  int error_basep;

  int majorp;

  int minorp;

  jboolean result;

  gdk_threads_enter ();

  display = gdk_display_get_default ();

  xdisplay = GDK_DISPLAY_XDISPLAY (display);

  result = XTestQueryExtension (xdisplay,

                                &event_basep,

                                &error_basep,

                                &majorp,

                                &minorp);

  gdk_threads_leave ();

  return result;

#else

  return JNI_FALSE;

#endif

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GdkRobotPeer_mouseMove

  (JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)), jint x, jint y)

{

#ifdef HAVE_XTEST

  GdkDisplay *display;

  Display *xdisplay;

  int result;

  gdk_threads_enter ();

  display = gdk_display_get_default ();

  xdisplay = GDK_DISPLAY_XDISPLAY (display);

  result = XTestFakeMotionEvent (xdisplay,

                                 -1,

                                 x, y, CurrentTime);

  XFlush (xdisplay);

  gdk_threads_leave ();

#else

  (void) x; // Unused.

  (void) y; // Unused.

#endif

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GdkRobotPeer_mousePress

  (JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)), jint buttons)

{

#ifdef HAVE_XTEST

  GdkDisplay *display;

  Display *xdisplay;

  int result;

  gdk_threads_enter ();

  display = gdk_display_get_default ();

  xdisplay = GDK_DISPLAY_XDISPLAY (display);

  result = XTestFakeButtonEvent (xdisplay,

                                 awt_button_mask_to_num (buttons),

                                 True, CurrentTime);

  XFlush (xdisplay);

  gdk_threads_leave ();

#else

  (void) buttons; // Unused.

#endif

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GdkRobotPeer_mouseRelease

  (JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)), jint buttons)

{

#ifdef HAVE_XTEST

  GdkDisplay *display;

  Display *xdisplay;

  int result;

  gdk_threads_enter ();

  display = gdk_display_get_default ();

  xdisplay = GDK_DISPLAY_XDISPLAY (display);

  result = XTestFakeButtonEvent (xdisplay,

                                 awt_button_mask_to_num (buttons),

                                 False, CurrentTime);

  XFlush (xdisplay);

  gdk_threads_leave ();

#else

  (void) buttons; // Unused.

#endif

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GdkRobotPeer_mouseWheel

  (JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)), jint wheelAmt)

{

#ifdef HAVE_XTEST

  GdkDisplay *display;

  Display *xdisplay;

  int i = 0;

  gdk_threads_enter ();

  display = gdk_display_get_default ();

  xdisplay = GDK_DISPLAY_XDISPLAY (display);

  if (wheelAmt < 0)

    for (i = 0; i < -wheelAmt; i++)

      {

        XTestFakeButtonEvent (xdisplay,

                              4,

                              True, CurrentTime);

        XTestFakeButtonEvent (xdisplay,

                              4,

                              False, CurrentTime);

      }

  else

    for (i = 0; i < wheelAmt; i++)

      {

        XTestFakeButtonEvent (xdisplay,

                              5,

                              True, CurrentTime);

        XTestFakeButtonEvent (xdisplay,

                              5,

                              False, CurrentTime);

      }

  XFlush (xdisplay);

  gdk_threads_leave ();

#else

  (void) wheelAmt; // Unused.

#endif

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GdkRobotPeer_keyPress

  (JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)), jint keycode)

{

#ifdef HAVE_XTEST

  GdkDisplay *display;

  Display *xdisplay;

  GdkKeymapKey *keymap_keys = NULL;

  gint n_keys = 0;

  guint lookup_keyval = 0;

  int result;

  gdk_threads_enter ();

  display = gdk_display_get_default ();

  xdisplay = GDK_DISPLAY_XDISPLAY (display);

  lookup_keyval = cp_gtk_awt_keycode_to_keysym (keycode,

                                                       AWT_KEY_LOCATION_LEFT);

  if (!gdk_keymap_get_entries_for_keyval (gdk_keymap_get_default (),

                                          lookup_keyval,

                                          &keymap_keys,

                                          &n_keys))

    {

      /* No matching keymap entry was found. */

      g_printerr ("No matching keymap entries were found\n");

      gdk_threads_leave ();

      return;

    }

  /* If n_keys > 1 then there are multiple hardware keycodes that

     translate to lookup_keyval.  We arbitrarily choose the first

     hardware keycode from the list returned by

     gdk_keymap_get_entries_for_keyval. */

  result = XTestFakeKeyEvent (xdisplay,

                              keymap_keys[0].keycode,

                              True, CurrentTime);

  g_free (keymap_keys);

  XFlush (xdisplay);

  gdk_threads_leave ();

#else

  (void) keycode; // Unused.

#endif

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GdkRobotPeer_keyRelease

  (JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)), jint keycode)

{

#ifdef HAVE_XTEST

  GdkDisplay *display;

  Display *xdisplay;

  GdkKeymapKey *keymap_keys = NULL;

  gint n_keys = 0;

  guint lookup_keyval = 0;

  int result;

  gdk_threads_enter ();

  display = gdk_display_get_default ();

  xdisplay = GDK_DISPLAY_XDISPLAY (display);

  lookup_keyval = cp_gtk_awt_keycode_to_keysym (keycode,

                                                       AWT_KEY_LOCATION_LEFT);

  if (!gdk_keymap_get_entries_for_keyval (gdk_keymap_get_default (),

                                          lookup_keyval,

                                          &keymap_keys,

                                          &n_keys))

    {

      /* No matching keymap entry was found. */

      g_printerr ("No matching keymap entries were found\n");

      gdk_threads_leave ();

      return;

    }

  /* If n_keys > 1 then there are multiple hardware keycodes that

     translate to lookup_keyval.  We arbitrarily choose the first

     hardware keycode from the list returned by

     gdk_keymap_get_entries_for_keyval. */

  result = XTestFakeKeyEvent (xdisplay,

                              keymap_keys[0].keycode,

                              False, CurrentTime);

  g_free (keymap_keys);

  XFlush (xdisplay);

  gdk_threads_leave ();

#else

  (void) keycode; // Unused.

#endif

}

JNIEXPORT jintArray JNICALL

Java_gnu_java_awt_peer_gtk_GdkRobotPeer_nativeGetRGBPixels

  (JNIEnv *env, jobject obj __attribute__((unused)), jint x, jint y,

   jint width, jint height)

{

#ifdef HAVE_XTEST

  jint stride_bytes, stride_pixels, n_channels, n_pixels;

  jintArray jpixels;

  jint *java_pixels;

  guchar *gdk_pixels;

  GdkPixbuf *pixbuf_no_alpha = NULL;

  GdkPixbuf *pixbuf = NULL;

#ifndef WORDS_BIGENDIAN

  int i;

#endif

  gdk_threads_enter ();

  pixbuf_no_alpha = gdk_pixbuf_get_from_drawable (NULL,

                                                  gdk_get_default_root_window (),

                                                  NULL, x, y, 0, 0,

                                                  width, height);

  pixbuf = gdk_pixbuf_add_alpha(pixbuf_no_alpha, FALSE, 0, 0, 0);

  g_assert (gdk_pixbuf_get_has_alpha (pixbuf));

  stride_bytes = gdk_pixbuf_get_rowstride (pixbuf);

  n_channels = gdk_pixbuf_get_n_channels (pixbuf);

  stride_pixels =  stride_bytes / n_channels;

  n_pixels = height * stride_pixels;

  gdk_pixels = gdk_pixbuf_get_pixels (pixbuf);

  jpixels = (*env)->NewIntArray (env, n_pixels);

  java_pixels = (*env)->GetIntArrayElements (env, jpixels, NULL);

  memcpy (java_pixels,

          gdk_pixels,

          (height * stride_bytes));

#ifndef WORDS_BIGENDIAN

  /* convert pixels from 0xBBGGRRAA to 0xAARRGGBB */

  for (i = 0; i < n_pixels; ++i)

    {

      java_pixels[i] = SWAPU32 ((unsigned)java_pixels[i]);

    }

#endif

  g_object_unref (pixbuf);

  (*env)->ReleaseIntArrayElements (env, jpixels, java_pixels, 0);

  gdk_threads_leave ();

  return jpixels;

#else

  (void) env;

  (void) x;

  (void) y;

  (void) width;

  (void) height;

  return NULL;

#endif

}