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This is a backport of OpenJFX 8 to run on Java 7.
The newest version!
/*
* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.glass.ui.mac;
import com.sun.glass.ui.TouchInputSupport;
import com.sun.glass.ui.GestureSupport;
import com.sun.glass.ui.Application;
import com.sun.glass.ui.View;
import java.security.AccessController;
import java.security.PrivilegedAction;
final class MacGestureSupport {
private native static void _initIDs();
static {
_initIDs();
}
private final static int GESTURE_ROTATE = 100;
private final static int GESTURE_MAGNIFY = 101;
private final static int GESTURE_SWIPE = 102;
private final static int SCROLL_SRC_WHEEL = 50;
private final static int SCROLL_SRC_GESTURE = 51;
private final static int SCROLL_SRC_INERTIA = 52;
private final static boolean isDirect = false;
private final static GestureSupport gestures = new GestureSupport(false);
private final static TouchInputSupport touches =
new MacTouchInputSupport(gestures.createTouchCountListener(), false);
public static void notifyBeginTouchEvent(View view, int modifiers,
int touchEventCount) {
touches.notifyBeginTouchEvent(view, modifiers, isDirect, touchEventCount);
}
public static void notifyNextTouchEvent(View view, int state, long id,
float x, float y) {
// 'x' and 'y' address normalized position. The normalized position
// is a scaled value between (0.0) and (1.0,1.0), where (0.0,0.0) is
// the lower-left position on the touch device.
//
// So translate the touch position to integer coordinate where (0.0)
// is the top-left position and (10000,10000) is the bottom-right
// position on the touch device.
final int intX = (int) (10000 * x);
final int intY = 10000 - (int) (10000 * y);
touches.notifyNextTouchEvent(view, state, id, intX, intY, intX, intY);
}
public static void notifyEndTouchEvent(View view) {
touches.notifyEndTouchEvent(view);
}
public static void rotateGesturePerformed(View view, int modifiers, int x,
int y, int xAbs, int yAbs,
float rotation) {
gestures.handleDeltaRotation(view, modifiers, isDirect, false, x, y,
xAbs, yAbs, -rotation);
}
public static void scrollGesturePerformed(View view, int modifiers,
int sender, int x, int y,
int xAbs, int yAbs, float dx,
float dy) {
final int touchCount = touches.getTouchCount();
final boolean isInertia = (sender == SCROLL_SRC_INERTIA);
switch (sender) {
case SCROLL_SRC_WHEEL:
// fall through
case SCROLL_SRC_INERTIA:
// When inertial scrolling occurs system sends a number of
// scroll (mouse wheel notifications to be precise)
// notifications.
// Handle these notifications in a special way like swipe
// gestures, i.e. notify view with only
// GestureEvent#GESTURE_PERFORMED event type.
//
// Note: inertial scrolling may occur even when some
// touch points still present.
gestures.handleScrollingPerformed(view, modifiers, isDirect,
isInertia, touchCount, x, y,
xAbs, yAbs, dx, dy);
break;
case SCROLL_SRC_GESTURE:
gestures.handleDeltaScrolling(view, modifiers, isDirect,
isInertia, touchCount, x, y, xAbs,
yAbs, dx, dy);
break;
default:
System.err.println("Unknown scroll gesture sender: " + sender);
break;
}
}
public static void swipeGesturePerformed(View view, int modifiers, int dir,
int x, int y, int xAbs, int yAbs) {
// On OS X system doesn't call NSResponder#endGestureWithEvent
// for swipe gestures. So notify view with only
// GestureEvent#GESTURE_PERFORMED event type.
gestures.handleSwipePerformed(view, modifiers, isDirect, false, touches.
getTouchCount(), dir, x, y, xAbs, yAbs);
}
public static void magnifyGesturePerformed(View view, int modifiers, int x,
int y, int xAbs, int yAbs,
float scale) {
gestures.handleDeltaZooming(view, modifiers, isDirect, false, x, y, xAbs,
yAbs, scale, View.GESTURE_NO_DOUBLE_VALUE);
}
public static void gestureFinished(View view, int modifiers, int x, int y,
int xAbs, int yAbs) {
if (gestures.isScrolling()) {
gestures.handleScrollingEnd(view, modifiers, touches.getTouchCount(),
isDirect, false, x, y, xAbs, yAbs);
}
if (gestures.isRotating()) {
gestures.handleRotationEnd(view, modifiers, isDirect, false, x, y,
xAbs, yAbs);
}
if (gestures.isZooming()) {
gestures.handleZoomingEnd(view, modifiers, isDirect, false, x, y,
xAbs, yAbs);
}
}
}