2002-11-15 05:40:55 -05:00
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/*
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* Copyright (c) 2002 Light Weight Java Game Library Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'Light Weight Java Game Library' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* $Id$
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*
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2002-11-15 06:10:32 -05:00
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* Linux mouse handling.
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2002-11-15 05:40:55 -05:00
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*
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2002-11-15 06:10:32 -05:00
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* @author elias_naur <elias_naur@users.sourceforge.net>
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2002-11-15 05:40:55 -05:00
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* @version $Revision$
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*/
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#include <X11/X.h>
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#include <X11/Xlib.h>
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2002-11-20 08:54:58 -05:00
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#include <X11/extensions/xf86vmode.h>
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2002-11-15 05:40:55 -05:00
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#include <assert.h>
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#include <string.h>
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#include "org_lwjgl_input_Mouse.h"
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2002-11-17 11:49:16 -05:00
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#define NUM_BUTTONS 3
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2002-11-15 05:40:55 -05:00
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2002-11-28 16:49:11 -05:00
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#define POINTER_WARP_BORDER 10
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#define WARP_RETRY 5
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2002-11-15 05:40:55 -05:00
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extern Display *disp;
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extern Window win;
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2002-11-20 08:54:58 -05:00
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extern int screen;
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2002-11-20 05:33:37 -05:00
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extern int current_fullscreen;
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2002-11-28 16:49:11 -05:00
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extern int win_width;
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extern int win_height;
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2002-11-20 05:33:37 -05:00
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2002-11-21 10:05:51 -05:00
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bool pointer_grabbed;
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2002-11-15 05:40:55 -05:00
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jfieldID fid_button;
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jfieldID fid_dx;
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jfieldID fid_dy;
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jfieldID fid_dz;
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int last_x;
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int last_y;
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2002-11-17 11:49:16 -05:00
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int last_z;
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2002-11-15 05:40:55 -05:00
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int current_x;
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int current_y;
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2002-11-17 11:49:16 -05:00
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int current_z;
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2002-11-15 05:40:55 -05:00
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unsigned char buttons[NUM_BUTTONS];
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2002-11-17 11:14:53 -05:00
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Cursor blank_cursor;
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2002-11-20 05:33:37 -05:00
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extern int isFocused(void);
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2002-11-15 05:40:55 -05:00
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/*
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* Class: org_lwjgl_input_Mouse
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* Method: initIDs
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* Signature: ()V
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_initIDs
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(JNIEnv * env, jclass clazz)
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{
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// Get a global class instance, just to be sure
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static jobject globalClassLock = NULL;
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if (globalClassLock == NULL) {
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2002-11-19 03:50:57 -05:00
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globalClassLock = env->NewGlobalRef(clazz);
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2002-11-15 05:40:55 -05:00
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}
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// Now cache the field IDs:
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if (fid_button == NULL) {
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2002-11-19 03:50:57 -05:00
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fid_button = env->GetStaticFieldID(clazz, "button", "[Z");
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2002-11-15 05:40:55 -05:00
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}
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if (fid_dx == NULL) {
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2002-11-19 03:50:57 -05:00
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fid_dx = env->GetStaticFieldID(clazz, "dx", "I");
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2002-11-15 05:40:55 -05:00
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}
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if (fid_dy == NULL) {
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2002-11-19 03:50:57 -05:00
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fid_dy = env->GetStaticFieldID(clazz, "dy", "I");
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2002-11-15 05:40:55 -05:00
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}
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if (fid_dz == NULL) {
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2002-11-19 03:50:57 -05:00
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fid_dz = env->GetStaticFieldID(clazz, "dz", "I");
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2002-11-15 05:40:55 -05:00
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}
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}
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2002-11-17 11:14:53 -05:00
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int blankCursor(void) {
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2002-11-19 03:50:57 -05:00
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unsigned int best_width, best_height;
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2002-11-17 11:14:53 -05:00
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if (XQueryBestCursor(disp, win, 1, 1, &best_width, &best_height) == 0) {
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#ifdef _DEBUG
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printf("Could not query best cursor size\n");
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#endif
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return 0;
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}
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Pixmap mask = XCreatePixmap(disp, win, best_width, best_height, 1);
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XGCValues gc_values;
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gc_values.foreground = 0;
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GC gc = XCreateGC(disp, mask, GCForeground, &gc_values);
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XFillRectangle(disp, mask, gc, 0, 0, best_width, best_height);
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2002-11-17 11:49:16 -05:00
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XFreeGC(disp, gc);
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2002-11-17 11:14:53 -05:00
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XColor dummy_color;
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blank_cursor = XCreatePixmapCursor(disp, mask, mask, &dummy_color, &dummy_color, 0, 0);
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XFreePixmap(disp, mask);
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return 1;
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}
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2002-11-20 05:33:37 -05:00
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int grabPointer(void) {
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int result;
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int mask = EnterWindowMask | LeaveWindowMask | PointerMotionMask | ButtonPressMask | ButtonReleaseMask;
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2002-11-20 08:54:58 -05:00
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if (current_fullscreen) {
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2002-11-20 05:33:37 -05:00
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result = XGrabPointer(disp, win, False, mask, GrabModeAsync, GrabModeAsync, win, blank_cursor, CurrentTime);
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2002-11-30 16:25:00 -05:00
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XWarpPointer(disp, None, win, 0, 0, 0, 0, current_x, current_y);
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2002-11-20 08:54:58 -05:00
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XF86VidModeSetViewPort(disp, screen, 0, 0); // make sure we have a centered window
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} else
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2002-11-20 05:33:37 -05:00
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result = XGrabPointer(disp, win, False, mask, GrabModeAsync, GrabModeAsync, None, blank_cursor, CurrentTime);
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if (result == GrabSuccess)
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2002-11-21 10:05:51 -05:00
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pointer_grabbed = true;
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2002-11-20 05:33:37 -05:00
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return result;
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}
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void ungrabPointer(void) {
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2002-11-21 10:05:51 -05:00
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pointer_grabbed = false;
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2002-11-20 05:33:37 -05:00
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XUngrabPointer(disp, CurrentTime);
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}
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int updatePointerGrab(void) {
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if (current_fullscreen) {
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if (!pointer_grabbed)
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return grabPointer();
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} else {
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if (isFocused()) {
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if (!pointer_grabbed)
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return grabPointer();
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} else {
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if (pointer_grabbed)
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ungrabPointer();
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}
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}
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return GrabSuccess;
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}
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2002-11-15 05:40:55 -05:00
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/*
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* Class: org_lwjgl_input_Mouse
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* Method: nCreate
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* Signature: ()Z
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*/
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_input_Mouse_nCreate
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(JNIEnv * env, jclass clazz)
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{
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int i;
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2002-11-20 05:33:37 -05:00
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current_x = current_y = current_z = last_x = last_y = last_z = pointer_grabbed = 0;
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2002-11-15 05:40:55 -05:00
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for (i = 0; i < NUM_BUTTONS; i++)
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buttons[i] = 0;
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2002-11-17 11:14:53 -05:00
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if (!blankCursor()) {
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#ifdef _DEBUG
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2002-11-20 05:33:37 -05:00
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printf("Could create blank cursor\n");
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2002-11-17 11:14:53 -05:00
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#endif
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return JNI_FALSE;
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}
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2002-11-20 05:33:37 -05:00
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if (updatePointerGrab() != GrabSuccess) {
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2002-11-15 05:40:55 -05:00
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#ifdef _DEBUG
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2002-11-20 05:33:37 -05:00
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printf("Could not grab pointer\n");
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2002-11-15 05:40:55 -05:00
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#endif
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return JNI_FALSE;
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}
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return JNI_TRUE;
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}
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2002-11-17 11:49:16 -05:00
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/*
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* Class: org_lwjgl_input_Mouse
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* Method: nGetNumButtons
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* Signature: ()I
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*/
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JNIEXPORT jint JNICALL Java_org_lwjgl_input_Mouse_nGetNumButtons(JNIEnv *env, jclass clazz) {
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return (jint)NUM_BUTTONS;
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}
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/*
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* Class: org_lwjgl_input_Mouse
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* Method: nHasZValue
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* Signature: ()Z
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*/
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_input_Mouse_nHasZValue(JNIEnv *env, jclass clazz) {
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return JNI_TRUE;
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}
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2002-11-15 05:40:55 -05:00
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/*
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* Class: org_lwjgl_input_Mouse
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* Method: nDestroy
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* Signature: ()V
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_nDestroy
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(JNIEnv * env, jclass clazz)
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{
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2002-11-20 05:33:37 -05:00
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if (pointer_grabbed)
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ungrabPointer();
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2002-11-17 11:14:53 -05:00
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XFreeCursor(disp, blank_cursor);
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2002-11-15 05:40:55 -05:00
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}
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int checkPointer() {
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XEvent event;
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int count = 0;
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2002-11-20 05:33:37 -05:00
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updatePointerGrab();
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2002-11-15 05:40:55 -05:00
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while (XCheckMaskEvent(disp, ButtonPressMask | ButtonReleaseMask | PointerMotionMask, &event)) {
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count++;
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switch (event.type) {
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case ButtonPress:
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2002-11-17 11:49:16 -05:00
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switch (event.xbutton.button) {
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case Button1:
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2002-12-12 14:51:20 -05:00
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buttons[0] = JNI_TRUE;
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2002-11-17 11:49:16 -05:00
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break;
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case Button2:
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2002-12-12 14:51:20 -05:00
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buttons[1] = JNI_TRUE;
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2002-11-17 11:49:16 -05:00
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break;
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case Button3:
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2002-12-12 14:51:20 -05:00
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buttons[2] = JNI_TRUE;
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2002-11-17 11:49:16 -05:00
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break;
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case Button4:
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current_z--;
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break;
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case Button5:
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current_z++;
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break;
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default: assert(0);
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}
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2002-11-15 05:40:55 -05:00
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break;
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case ButtonRelease:
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2002-11-17 11:49:16 -05:00
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switch (event.xbutton.button) {
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case Button1:
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2002-12-12 14:51:20 -05:00
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buttons[0] = JNI_FALSE;
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2002-11-17 11:49:16 -05:00
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break;
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case Button2:
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2002-12-12 14:51:20 -05:00
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buttons[1] = JNI_FALSE;
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2002-11-17 11:49:16 -05:00
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break;
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case Button3:
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2002-12-12 14:51:20 -05:00
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buttons[2] = JNI_FALSE;
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2002-11-17 11:49:16 -05:00
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break;
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case Button4: /* Fall through */
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case Button5:
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break;
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default: assert(0);
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}
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2002-11-15 05:40:55 -05:00
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break;
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case MotionNotify:
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2002-11-28 16:49:11 -05:00
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current_x = event.xmotion.x;
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current_y = event.xmotion.y;
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2002-11-15 05:40:55 -05:00
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break;
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default: assert(0);
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}
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}
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return count;
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}
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2002-11-28 16:49:11 -05:00
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void warpPointer(void) {
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int i;
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// Reset pointer to middle of screen if inside a certain inner border
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if (current_x < POINTER_WARP_BORDER || current_y < POINTER_WARP_BORDER ||
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current_x > win_width - POINTER_WARP_BORDER || current_y > win_height - POINTER_WARP_BORDER) {
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current_x = last_x = win_width/2;
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current_y = last_y = win_height/2;
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XWarpPointer(disp, None, win, 0, 0, 0, 0, current_x, current_y);
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XEvent event;
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// Try to catch the warp pointer event
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for (i = 0; i < WARP_RETRY; i++) {
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XMaskEvent(disp, PointerMotionMask, &event);
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if (event.xmotion.x > current_x - POINTER_WARP_BORDER &&
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event.xmotion.x < current_x + POINTER_WARP_BORDER &&
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event.xmotion.y > current_y - POINTER_WARP_BORDER &&
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event.xmotion.y < current_y + POINTER_WARP_BORDER)
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break;
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#ifdef _DEBUG
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printf("Skipped event searching for warp event %d, %d\n", event.xmotion.x, event.xmotion.y);
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#endif
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}
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#ifdef _DEBUG
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if (i == WARP_RETRY)
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printf("Never got warp event\n");
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#endif
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}
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}
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2002-11-15 05:40:55 -05:00
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/*
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* Class: org_lwjgl_input_Mouse
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* Method: nPoll
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* Signature: ()V
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_nPoll
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(JNIEnv * env, jclass clazz)
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{
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checkPointer();
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int moved_x = current_x - last_x;
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int moved_y = current_y - last_y;
|
2002-11-17 11:49:16 -05:00
|
|
|
int moved_z = current_z - last_z;
|
2002-11-19 03:50:57 -05:00
|
|
|
env->SetStaticIntField(clazz, fid_dx, (jint)moved_x);
|
|
|
|
env->SetStaticIntField(clazz, fid_dy, (jint)moved_y);
|
|
|
|
env->SetStaticIntField(clazz, fid_dz, (jint)moved_z);
|
2002-11-15 05:40:55 -05:00
|
|
|
last_x = current_x;
|
|
|
|
last_y = current_y;
|
2002-11-17 11:49:16 -05:00
|
|
|
last_z = current_z;
|
2002-11-19 03:50:57 -05:00
|
|
|
jbooleanArray buttonsArray = (jbooleanArray) env->GetStaticObjectField(clazz, fid_button);
|
2002-12-12 14:51:20 -05:00
|
|
|
env->SetBooleanArrayRegion(buttonsArray, 0, NUM_BUTTONS, buttons);
|
2002-11-28 16:49:11 -05:00
|
|
|
if (current_fullscreen)
|
|
|
|
warpPointer();
|
2002-11-15 05:40:55 -05:00
|
|
|
}
|
2002-11-29 03:29:53 -05:00
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Class: org_lwjgl_input_Mouse
|
|
|
|
* Method: nEnableBuffer
|
|
|
|
* Signature: ()I
|
|
|
|
*/
|
|
|
|
JNIEXPORT jint JNICALL Java_org_lwjgl_input_Mouse_nEnableBuffer
|
|
|
|
(JNIEnv * env, jclass clazz) {
|
|
|
|
printf("*** FIXME: nEnableBuffer not implemented!\n*");
|
2002-11-29 06:51:10 -05:00
|
|
|
}
|