229 lines
7.2 KiB
Java
229 lines
7.2 KiB
Java
/*
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* Copyright (c) 2002-2008 LWJGL 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 'LWJGL' 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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package org.lwjgl.opengl;
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/**
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* A Cocoa implementation of a LWJGL compatible Mouse.
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* @author mojang
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* @author kappaOne <one.kappa@gmail.com>
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*/
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import java.nio.ByteBuffer;
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import java.nio.IntBuffer;
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import org.lwjgl.input.Mouse;
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import org.lwjgl.LWJGLException;
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import java.lang.reflect.*;
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import java.lang.Integer;
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import java.lang.Long;
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import org.lwjgl.BufferUtils;
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final class MacOSXNativeMouse extends EventQueue {
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private static final int WHEEL_SCALE = 120;
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private static final int NUM_BUTTONS = 3;
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private ByteBuffer window_handle;
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private MacOSXDisplay display;
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private boolean grabbed;
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/** The accumulated mouse deltas returned by poll() */
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private float accum_dx;
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private float accum_dy;
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private int accum_dz;
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/** The last mouse position */
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private float last_x;
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private float last_y;
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/** Saved control key state for ctrl-click right button emulation */
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private boolean saved_control_state;
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private final ByteBuffer event = ByteBuffer.allocate(Mouse.EVENT_SIZE);
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private IntBuffer delta_buffer = BufferUtils.createIntBuffer(2);
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private int skip_event;
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private final byte[] buttons = new byte[NUM_BUTTONS];
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MacOSXNativeMouse(MacOSXDisplay display, ByteBuffer window_handle) {
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super(Mouse.EVENT_SIZE);
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this.display = display;
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this.window_handle = window_handle;
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}
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private native void nSetCursorPosition(ByteBuffer window_handle, int x, int y);
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public static native void nGrabMouse(boolean grab);
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private native void nRegisterMouseListener(ByteBuffer window_handle);
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private native void nUnregisterMouseListener(ByteBuffer window_handle);
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private static native long nCreateCursor(int width, int height, int xHotspot, int yHotspot, int numImages, IntBuffer images, int images_offset, IntBuffer delays, int delays_offset) throws LWJGLException;
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private static native void nDestroyCursor(long cursor_handle);
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private static native void nSetCursor(long cursor_handle) throws LWJGLException;
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public synchronized void register() {
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nRegisterMouseListener(window_handle);
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}
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public static long createCursor(int width, int height, int xHotspot, int yHotspot, int numImages, IntBuffer images, IntBuffer delays) throws LWJGLException {
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try {
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return nCreateCursor(width, height, xHotspot, yHotspot, numImages, images, images.position(), delays, delays != null ? delays.position() : -1);
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} catch (LWJGLException e) {
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throw e;
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}
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}
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public static void destroyCursor(long cursor_handle) {
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nDestroyCursor(cursor_handle);
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}
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public static void setCursor(long cursor_handle) throws LWJGLException {
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try {
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nSetCursor(cursor_handle);
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} catch (LWJGLException e) {
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throw e;
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}
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}
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public synchronized void setCursorPosition(int x, int y) {
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nSetCursorPosition(window_handle, x, y);
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}
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public synchronized void unregister() {
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nUnregisterMouseListener(window_handle);
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}
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public synchronized void setGrabbed(boolean grabbed) {
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this.grabbed = grabbed;
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nGrabMouse(grabbed);
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skip_event = 1;
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accum_dx = accum_dy = 0;
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}
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public synchronized boolean isGrabbed() {
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return grabbed;
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}
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protected void resetCursorToCenter() {
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clearEvents();
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accum_dx = accum_dy = 0;
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if (display != null) {
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last_x = display.getWidth() / 2;
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last_y = display.getHeight() / 2;
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}
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}
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private void putMouseEvent(byte button, byte state, int dz, long nanos) {
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if (grabbed)
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putMouseEventWithCoords(button, state, 0, 0, dz, nanos);
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else
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putMouseEventWithCoords(button, state, (int)last_x, (int)last_y, dz, nanos);
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}
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protected void putMouseEventWithCoords(byte button, byte state, int coord1, int coord2, int dz, long nanos) {
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event.clear();
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event.put(button).put(state).putInt(coord1).putInt(coord2).putInt(dz).putLong(nanos);
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event.flip();
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putEvent(event);
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}
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public synchronized void poll(IntBuffer coord_buffer, ByteBuffer buttons_buffer) {
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if (grabbed) {
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coord_buffer.put(0, (int)accum_dx);
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coord_buffer.put(1, (int)accum_dy);
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} else {
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coord_buffer.put(0, (int)last_x);
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coord_buffer.put(1, (int)last_y);
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}
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coord_buffer.put(2, accum_dz);
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accum_dx = accum_dy = accum_dz = 0;
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int old_position = buttons_buffer.position();
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buttons_buffer.put(buttons, 0, buttons.length);
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buttons_buffer.position(old_position);
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}
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private void setCursorPos(float x, float y, long nanos) {
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if ( grabbed )
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return;
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float dx = x - last_x;
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float dy = y - last_y;
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addDelta(dx, dy);
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last_x = x;
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last_y = y;
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putMouseEventWithCoords((byte)-1, (byte)0, (int)x, (int)y, 0, nanos);
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}
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protected void addDelta(float dx, float dy) {
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accum_dx += dx;
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accum_dy += -dy;
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}
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public synchronized void setButton(int button, int state, long nanos) {
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buttons[button] = (byte)state;
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putMouseEvent((byte)button, (byte)state, 0, nanos);
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}
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public synchronized void mouseMoved(float x, float y, float dx, float dy, float dz, long nanos) {
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if (skip_event > 0) {
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skip_event--;
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if (skip_event == 0) {
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last_x = x;
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last_y = y;
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}
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return;
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}
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if ( dz != 0 ) { // if scroll wheel event
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// if no vertical wheel events, then map the horizontal wheel event to it
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if (dy == 0) dy = dx;
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int wheel_amount = (int)(dy * WHEEL_SCALE);
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accum_dz += wheel_amount;
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putMouseEvent((byte)-1, (byte)0, wheel_amount, nanos);
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}
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else if (grabbed) {
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if ( dx != 0 || dy != 0 ) {
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putMouseEventWithCoords((byte)-1, (byte)0, (int)dx, (int)-dy, 0, nanos);
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addDelta(dx, dy);
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}
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} else {
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setCursorPos(x, y, nanos);
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}
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}
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}
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