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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2003-10-11 12:29:40 -04:00
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#include "Window.h"
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#include "common_tools.h"
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2002-11-15 05:40:55 -05:00
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#include "org_lwjgl_input_Mouse.h"
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2003-05-16 14:39:46 -04:00
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#include "extxcursor.h"
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2002-11-15 05:40:55 -05:00
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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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2003-02-24 14:46:52 -05:00
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// scale the mouse wheel according to win32
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#define WHEEL_SCALE 120
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2002-11-28 16:49:11 -05:00
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2004-04-12 06:05:13 -04:00
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static bool pointer_grabbed;
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static bool created;
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2002-11-15 05:40:55 -05:00
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2003-02-08 14:55:07 -05:00
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static int last_x;
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static int last_y;
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static int last_z;
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static int current_x;
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static int current_y;
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static int current_z;
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2003-10-11 12:29:40 -04:00
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static jbyte buttons[NUM_BUTTONS];
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static event_queue_t event_queue;
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static bool buffer_enabled;
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2002-11-15 05:40:55 -05:00
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2003-02-08 14:55:07 -05:00
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static Cursor blank_cursor;
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2003-05-16 14:39:46 -04:00
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static Cursor current_cursor;
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2003-08-11 12:35:45 -04:00
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static int cap(int val, int min, int max) {
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if (val < min)
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return min;
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else if (val > max)
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return max;
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else
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return val;
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}
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static void setCursorPos(int x, int y) {
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current_x = cap(x, 0, getWindowWidth() - 1);
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current_y = cap(y, 0, getWindowHeight() - 1);
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}
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2003-10-11 08:56:26 -04:00
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static void transformCursorPos(int x, int y) {
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2003-10-11 07:03:06 -04:00
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// transform to OpenGL coordinate system center
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2003-10-11 08:56:26 -04:00
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y = getWindowHeight() - 1 - y;
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2003-10-11 07:03:06 -04:00
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setCursorPos(x, y);
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2003-10-11 08:56:26 -04:00
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}
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static void centerCursor() {
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transformCursorPos(getWindowWidth()/2, getWindowHeight()/2);
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2003-10-11 07:03:06 -04:00
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last_x = current_x;
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last_y = current_y;
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}
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2003-10-11 09:23:55 -04:00
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static bool 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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2004-04-07 03:46:03 -04:00
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if (XQueryBestCursor(getDisplay(), getCurrentWindow(), 1, 1, &best_width, &best_height) == 0) {
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2003-12-20 17:03:25 -05:00
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printfDebug("Could not query best cursor size\n");
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2003-10-11 09:23:55 -04:00
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return false;
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2002-11-17 11:14:53 -05:00
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}
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2004-04-07 03:46:03 -04:00
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Pixmap mask = XCreatePixmap(getDisplay(), getCurrentWindow(), best_width, best_height, 1);
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2002-11-17 11:14:53 -05:00
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XGCValues gc_values;
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gc_values.foreground = 0;
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2004-04-07 03:46:03 -04:00
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GC gc = XCreateGC(getDisplay(), mask, GCForeground, &gc_values);
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XFillRectangle(getDisplay(), mask, gc, 0, 0, best_width, best_height);
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XFreeGC(getDisplay(), gc);
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2002-11-17 11:14:53 -05:00
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XColor dummy_color;
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2004-04-07 03:46:03 -04:00
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blank_cursor = XCreatePixmapCursor(getDisplay(), mask, mask, &dummy_color, &dummy_color, 0, 0);
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XFreePixmap(getDisplay(), mask);
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2003-10-11 09:23:55 -04:00
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return true;
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2002-11-17 11:14:53 -05:00
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}
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2004-04-12 06:05:13 -04:00
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static void updateCursor(void) {
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Cursor cursor;
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if (isGrabbed())
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cursor = blank_cursor;
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else
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cursor = current_cursor;
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XDefineCursor(getDisplay(), getCurrentWindow(), cursor);
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2003-05-16 14:39:46 -04:00
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}
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static void grabPointer(void) {
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2004-04-12 06:05:13 -04:00
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if (!pointer_grabbed) {
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int result;
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int grab_mask = PointerMotionMask | ButtonPressMask | ButtonReleaseMask;
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result = XGrabPointer(getDisplay(), getCurrentWindow(), False, grab_mask, GrabModeAsync,
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GrabModeAsync, getCurrentWindow(), None, CurrentTime);
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if (result == GrabSuccess) {
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pointer_grabbed = true;
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// make sure we have a centered window
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XF86VidModeSetViewPort(getDisplay(), getCurrentScreen(), 0, 0);
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XFlush(getDisplay());
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2003-05-16 14:39:46 -04:00
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}
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2003-05-02 09:41:40 -04:00
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}
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2002-11-20 05:33:37 -05:00
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}
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2003-02-14 06:23:01 -05:00
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static void ungrabPointer(void) {
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2003-05-16 14:39:46 -04:00
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if (pointer_grabbed) {
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pointer_grabbed = false;
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2004-04-07 03:46:03 -04:00
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XUngrabPointer(getDisplay(), CurrentTime);
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XFlush(getDisplay());
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2003-05-16 14:39:46 -04:00
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}
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2002-11-20 05:33:37 -05:00
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}
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2004-04-12 06:05:13 -04:00
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void updatePointerGrab(void) {
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2003-05-16 14:39:46 -04:00
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if (!created)
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return;
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2004-04-12 06:05:13 -04:00
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if (shouldGrab()) {
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2003-05-16 14:39:46 -04:00
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grabPointer();
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2003-02-14 06:23:01 -05:00
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} else {
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2003-05-16 14:39:46 -04:00
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ungrabPointer();
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2003-02-14 06:23:01 -05:00
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}
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2004-04-12 06:05:13 -04:00
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updateCursor();
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2003-05-02 09:41:40 -04:00
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}
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2003-10-11 07:03:06 -04:00
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static void doWarpPointer(void ) {
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2004-04-12 06:33:39 -04:00
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// int i;
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XEvent ignore_warp_guard;
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ignore_warp_guard.type = MotionNotify;
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ignore_warp_guard.xmotion.state = 1; // Tell event loop to start ignoring motion events
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2003-10-11 12:29:40 -04:00
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centerCursor();
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2004-04-12 06:33:39 -04:00
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XSendEvent(getDisplay(), getCurrentWindow(), False, 0, &ignore_warp_guard);
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2004-04-07 03:46:03 -04:00
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XWarpPointer(getDisplay(), None, getCurrentWindow(), 0, 0, 0, 0, current_x, current_y);
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2004-04-12 06:33:39 -04:00
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ignore_warp_guard.xmotion.state = 0; // Tell event loop to stop ignoring motion events
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XSendEvent(getDisplay(), getCurrentWindow(), False, 0, &ignore_warp_guard);
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centerCursor();
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/* XWarpPointer(getDisplay(), None, getCurrentWindow(), 0, 0, 0, 0, current_x, current_y);
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2003-10-11 07:03:06 -04:00
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XEvent event;
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// Try to catch the warp pointer event
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2003-10-11 12:29:40 -04:00
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for (i = 0; i < WARP_RETRY; i++) {
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2004-04-07 03:46:03 -04:00
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XMaskEvent(getDisplay(), PointerMotionMask, &event);
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2003-10-11 07:03:06 -04:00
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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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2003-12-20 17:03:25 -05:00
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printfDebug("Skipped event searching for warp event %d, %d\n", event.xmotion.x, event.xmotion.y);
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2003-10-11 07:03:06 -04:00
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}
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if (i == WARP_RETRY)
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2004-04-12 06:33:39 -04:00
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printfDebug("Never got warp event\n");*/
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2003-10-11 07:03:06 -04:00
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}
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static void warpPointer(void) {
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2004-04-12 06:05:13 -04:00
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if (!pointer_grabbed || !isGrabbed())
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2003-10-11 07:03:06 -04:00
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return;
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// Reset pointer to middle of screen if outside 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 > getWindowWidth() - POINTER_WARP_BORDER || current_y > getWindowHeight() - POINTER_WARP_BORDER)
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doWarpPointer();
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}
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2003-05-20 08:20:13 -04:00
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JNIEXPORT jint JNICALL Java_org_lwjgl_input_Mouse_nGetNativeCursorCaps
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2003-05-16 14:39:46 -04:00
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(JNIEnv *env, jclass clazz) {
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2003-10-11 12:29:40 -04:00
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int caps = 0;
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2003-05-16 14:39:46 -04:00
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if (!isXcursorLoaded())
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2003-05-20 08:20:13 -04:00
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return caps;
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2004-04-07 03:46:03 -04:00
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XcursorBool argb_supported = XcursorSupportsARGB(getDisplay());
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XcursorBool anim_supported = XcursorSupportsAnim(getDisplay());
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2003-10-11 12:29:40 -04:00
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if (argb_supported)
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2003-08-29 04:00:44 -04:00
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caps |= org_lwjgl_input_Mouse_CURSOR_8_BIT_ALPHA | org_lwjgl_input_Mouse_CURSOR_ONE_BIT_TRANSPARENCY;
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2003-05-20 08:20:13 -04:00
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if (anim_supported)
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caps |= org_lwjgl_input_Mouse_CURSOR_ANIMATION;
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return caps;
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2003-05-16 14:39:46 -04:00
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}
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2004-04-12 06:05:13 -04:00
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JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_nSetNativeCursor (JNIEnv *env, jclass clazz, jlong cursor_handle) {
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2003-06-24 08:24:55 -04:00
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if (cursor_handle != 0) {
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Cursor cursor = (Cursor)cursor_handle;
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2003-05-16 14:39:46 -04:00
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current_cursor = cursor;
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2004-04-12 06:05:13 -04:00
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} else
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current_cursor = None;
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updateCursor();
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2003-05-16 14:39:46 -04:00
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}
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JNIEXPORT jint JNICALL Java_org_lwjgl_input_Mouse_nGetMinCursorSize
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(JNIEnv *env, jclass clazz)
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{
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2003-06-08 10:30:53 -04:00
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unsigned int width_return = 0;
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unsigned int height_return = 0;
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2004-04-07 03:46:03 -04:00
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XQueryBestCursor(getDisplay(), getCurrentWindow(), 1, 1, &width_return, &height_return);
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2003-06-08 10:32:30 -04:00
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return width_return > height_return ? width_return : height_return;
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2003-05-16 14:39:46 -04:00
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}
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JNIEXPORT jint JNICALL Java_org_lwjgl_input_Mouse_nGetMaxCursorSize
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(JNIEnv *env, jclass clazz)
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{
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unsigned int width_return = 0;
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unsigned int height_return = 0;
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2004-04-07 03:46:03 -04:00
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XQueryBestCursor(getDisplay(), getCurrentWindow(), 0xffffffff, 0xffffffff, &width_return, &height_return);
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2003-05-16 14:39:46 -04:00
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return width_return > height_return ? height_return : width_return;
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}
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2003-10-07 09:10:17 -04:00
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_input_Mouse_nHasWheel(JNIEnv *, jclass) {
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return JNI_TRUE;
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}
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JNIEXPORT jint JNICALL Java_org_lwjgl_input_Mouse_nGetButtonCount(JNIEnv *, jclass) {
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return NUM_BUTTONS;
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}
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2003-09-30 07:14:06 -04:00
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JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_nCreate
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2002-11-15 05:40:55 -05:00
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(JNIEnv * env, jclass clazz)
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{
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2004-04-07 03:46:03 -04:00
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Display *disp = incDisplay(env);
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if (disp == NULL)
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return;
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2002-11-15 05:40:55 -05:00
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int i;
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2003-10-11 07:03:06 -04:00
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current_z = last_z = 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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2003-10-11 12:29:40 -04:00
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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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2003-09-30 07:14:06 -04:00
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throwException(env, "Could not create blank cursor");
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return;
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2002-11-15 05:40:55 -05:00
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}
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2004-04-12 06:05:13 -04:00
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current_cursor = None;
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2003-02-12 12:12:01 -05:00
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created = true;
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2003-10-11 12:29:40 -04:00
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pointer_grabbed = false;
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buffer_enabled = false;
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2004-04-12 06:05:13 -04:00
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updatePointerGrab();
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2003-10-11 12:29:40 -04:00
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initEventQueue(&event_queue);
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2003-05-16 14:39:46 -04:00
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loadXcursor();
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2003-10-20 08:49:50 -04:00
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doWarpPointer();
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2002-11-15 05:40:55 -05:00
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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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2003-05-16 14:39:46 -04:00
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closeXcursor();
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|
|
|
ungrabPointer();
|
2004-04-07 03:46:03 -04:00
|
|
|
XFreeCursor(getDisplay(), blank_cursor);
|
2003-02-12 12:12:01 -05:00
|
|
|
created = false;
|
2004-04-07 03:46:03 -04:00
|
|
|
decDisplay();
|
2002-11-15 05:40:55 -05:00
|
|
|
}
|
|
|
|
|
2003-10-11 12:29:40 -04:00
|
|
|
static unsigned char mapButton(XButtonEvent *event) {
|
|
|
|
switch (event->button) {
|
|
|
|
case Button1:
|
|
|
|
return 0;
|
|
|
|
case Button2:
|
|
|
|
return 2;
|
|
|
|
case Button3:
|
|
|
|
return 1;
|
|
|
|
default: return NUM_BUTTONS;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void handleButton(XButtonEvent *event, unsigned char state) {
|
|
|
|
unsigned char button_num = mapButton(event);
|
|
|
|
if (button_num == NUM_BUTTONS)
|
|
|
|
return;
|
|
|
|
buttons[button_num] = state;
|
|
|
|
if (buffer_enabled) {
|
|
|
|
putEventElement(&event_queue, button_num);
|
|
|
|
putEventElement(&event_queue, state);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2003-02-09 12:01:01 -05:00
|
|
|
void handleButtonPress(XButtonEvent *event) {
|
2004-04-12 06:05:13 -04:00
|
|
|
switch (event->button) {
|
|
|
|
case Button4:
|
|
|
|
current_z += WHEEL_SCALE;
|
|
|
|
break;
|
|
|
|
case Button5:
|
|
|
|
current_z -= WHEEL_SCALE;
|
|
|
|
break;
|
|
|
|
default: break;
|
2002-11-15 05:40:55 -05:00
|
|
|
}
|
2004-04-12 06:05:13 -04:00
|
|
|
handleButton(event, 1);
|
2003-02-09 12:01:01 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
void handleButtonRelease(XButtonEvent *event) {
|
2004-04-12 06:05:13 -04:00
|
|
|
handleButton(event, 0);
|
2003-02-09 12:01:01 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
void handlePointerMotion(XMotionEvent *event) {
|
2004-04-12 06:05:13 -04:00
|
|
|
setCursorPos(event->x, event->y);
|
2002-11-15 05:40:55 -05:00
|
|
|
}
|
|
|
|
|
2004-04-06 10:23:19 -04:00
|
|
|
JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_nPoll(JNIEnv * env, jclass clazz, jobject coord_buffer_obj, jobject button_buffer_obj) {
|
2002-11-15 05:40:55 -05:00
|
|
|
int moved_x = current_x - last_x;
|
2003-10-11 12:29:40 -04:00
|
|
|
int moved_y = -(current_y - last_y);
|
2002-11-17 11:49:16 -05:00
|
|
|
int moved_z = current_z - last_z;
|
2004-04-06 10:23:19 -04:00
|
|
|
int *coords = (int *)env->GetDirectBufferAddress(coord_buffer_obj);
|
|
|
|
int coords_length = env->GetDirectBufferCapacity(coord_buffer_obj);
|
|
|
|
unsigned char *buttons_buffer = (unsigned char *)env->GetDirectBufferAddress(button_buffer_obj);
|
|
|
|
int buttons_length = env->GetDirectBufferCapacity(button_buffer_obj);
|
|
|
|
if (coords_length < 3) {
|
|
|
|
printfDebug("ERROR: Not enough space in coords array: %d < 3\n", coords_length);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
coords[0] = moved_x;
|
|
|
|
coords[1] = moved_y;
|
|
|
|
coords[2] = 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;
|
2004-04-06 10:23:19 -04:00
|
|
|
int num_buttons = NUM_BUTTONS;
|
|
|
|
if (num_buttons > buttons_length)
|
|
|
|
num_buttons = buttons_length;
|
|
|
|
for (int i = 0; i < num_buttons; i++)
|
|
|
|
buttons_buffer[i] = buttons[i];
|
2003-02-12 12:12:01 -05:00
|
|
|
warpPointer();
|
2002-11-29 06:51:10 -05:00
|
|
|
}
|
2003-10-11 12:29:40 -04:00
|
|
|
|
2004-03-26 16:11:20 -05:00
|
|
|
JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_nEnableBuffer(JNIEnv *env, jclass clazz) {
|
2003-10-11 12:29:40 -04:00
|
|
|
buffer_enabled = true;
|
|
|
|
}
|
|
|
|
|
2004-03-26 16:11:20 -05:00
|
|
|
JNIEXPORT jint JNICALL Java_org_lwjgl_input_Mouse_nRead(JNIEnv *env, jclass clazz, jobject buffer, jint buffer_position) {
|
|
|
|
unsigned char* buffer_ptr = (unsigned char *)env->GetDirectBufferAddress(buffer);
|
|
|
|
int buffer_size = env->GetDirectBufferCapacity(buffer) - buffer_position;
|
|
|
|
return copyEvents(&event_queue, buffer_ptr + buffer_position, buffer_size, 2);
|
2003-10-11 12:29:40 -04:00
|
|
|
}
|
2004-04-11 20:33:01 -04:00
|
|
|
|
2004-04-12 06:05:13 -04:00
|
|
|
JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_nGrabMouse(JNIEnv * env, jclass clazz, jboolean new_grab) {
|
|
|
|
setGrab(new_grab == JNI_TRUE ? true : false);
|
|
|
|
if (created)
|
|
|
|
doWarpPointer();
|
|
|
|
}
|