--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2010, 2018 IBM Corporation and others.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.events;
+
+
+import org.eclipse.swt.widgets.*;
+
+/**
+ * Instances of this class are sent in response to
+ * touch-based gestures that are triggered by the user.
+ *
+ * @see GestureListener
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ *
+ * @since 3.7
+ */
+public class GestureEvent extends TypedEvent {
+
+ /**
+ * The state of the keyboard modifier keys and mouse masks
+ * at the time the event was generated.
+ *
+ * @see org.eclipse.swt.SWT#MODIFIER_MASK
+ * @see org.eclipse.swt.SWT#BUTTON_MASK
+ */
+ public int stateMask;
+
+ /**
+ * The gesture type.
+ * <ul>
+ * <li>{@link org.eclipse.swt.SWT#GESTURE_BEGIN}</li>
+ * <li>{@link org.eclipse.swt.SWT#GESTURE_END}</li>
+ * <li>{@link org.eclipse.swt.SWT#GESTURE_MAGNIFY}</li>
+ * <li>{@link org.eclipse.swt.SWT#GESTURE_PAN}</li>
+ * <li>{@link org.eclipse.swt.SWT#GESTURE_ROTATE}</li>
+ * <li>{@link org.eclipse.swt.SWT#GESTURE_SWIPE}</li>
+ * </ul>
+ *
+ * This field determines the <code>GestureEvent</code> fields that contain valid data.
+ */
+ public int detail;
+
+ /**
+ * The meaning of this field is dependent on the value of the <code>detail</code> field
+ * and the platform. It can represent either the x coordinate of the centroid of the
+ * touches that make up the gesture, or the x coordinate of the cursor at the time the
+ * gesture was performed.
+ */
+ public int x;
+
+ /**
+ * The meaning of this field is dependent on the value of the <code>detail</code> field
+ * and the platform. It can represent either the y coordinate of the centroid of the
+ * touches that make up the gesture, or the y coordinate of the cursor at the time the
+ * gesture was performed.
+ */
+ public int y;
+
+ /**
+ * This field is valid when the <code>detail</code> field is set to <code>GESTURE_ROTATE</code>.
+ * It specifies the number of degrees rotated on the device since the gesture started. Positive
+ * values indicate counter-clockwise rotation, and negative values indicate clockwise rotation.
+ */
+ public double rotation;
+
+ /**
+ * This field is valid when the <code>detail</code> field is set to <code>GESTURE_SWIPE</code>
+ * or <code>GESTURE_PAN</code>. Both <code>xDirection</code> and <code>yDirection</code>
+ * can be valid for an individual gesture. The meaning of this field is dependent on the value
+ * of the <code>detail</code> field.
+ * <p>
+ * If <code>detail</code> is <code>GESTURE_SWIPE</code> then a positive value indicates a swipe
+ * to the right and a negative value indicates a swipe to the left.
+ *
+ * If <code>detail</code> is <code>GESTURE_PAN</code> then a positive value indicates a pan to
+ * the right by this field's count of points and a negative value indicates a pan to the left
+ * by this field's count of points.
+ */
+ public int xDirection;
+
+ /**
+ * This field is valid when the <code>detail</code> field is set to <code>GESTURE_SWIPE</code>
+ * or <code>GESTURE_PAN</code>. Both <code>xDirection</code> and <code>yDirection</code>
+ * can be valid for an individual gesture. The meaning of this field is dependent on the value
+ * of the <code>detail</code> field.
+ *
+ * If <code>detail</code> is <code>GESTURE_SWIPE</code> then a positive value indicates a downward
+ * swipe and a negative value indicates an upward swipe.
+ *
+ * If <code>detail</code> is <code>GESTURE_PAN</code> then a positive value indicates a downward
+ * pan by this field's count of points and a negative value indicates an upward pan by this
+ * field's count of points.
+ */
+ public int yDirection;
+
+ /**
+ * This field is valid when the <code>detail</code> field is set to <code>GESTURE_MAGNIFY</code>.
+ * This is the scale factor to be applied. This value will be 1.0 in the first received event with
+ * <code>GESTURE_MAGNIFY</code>, and will then fluctuate in subsequent events as the user moves
+ * their fingers.
+ */
+ public double magnification;
+
+ /**
+ * This flag indicates whether the operation should be allowed.
+ * Setting it to <code>false</code> will cancel the operation.
+ */
+ public boolean doit;
+
+ static final long serialVersionUID = -8348741538373572182L;
+
+/**
+ * Constructs a new instance of this class based on the
+ * information in the given untyped event.
+ *
+ * @param e the untyped event containing the information
+ */
+public GestureEvent(Event e) {
+ super(e);
+ this.stateMask = e.stateMask;
+ this.x = e.x;
+ this.y = e.y;
+ this.detail = e.detail;
+ this.rotation = e.rotation;
+ this.xDirection = e.xDirection;
+ this.yDirection = e.yDirection;
+ this.magnification = e.magnification;
+ this.doit = e.doit;
+}
+
+/**
+ * Returns a string containing a concise, human-readable
+ * description of the receiver.
+ *
+ * @return a string representation of the event
+ */
+@Override
+public String toString() {
+ String string = super.toString ();
+ return string.substring (0, string.length() - 1) // remove trailing '}'
+ + " stateMask=0x" + Integer.toHexString(stateMask)
+ + " detail=" + detail
+ + " x=" + x
+ + " y=" + y
+ + " rotation=" + rotation
+ + " xDirection=" + xDirection
+ + " yDirection=" + yDirection
+ + " magnification=" + magnification
+ + "}";
+}
+}
Code Review / simantics / platform.git / blobdiff