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Diffstat (limited to 'examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/paint/DragPaintSession.java')
-rw-r--r-- | examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/paint/DragPaintSession.java | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/paint/DragPaintSession.java b/examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/paint/DragPaintSession.java deleted file mode 100644 index 0401ca2bbb..0000000000 --- a/examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/paint/DragPaintSession.java +++ /dev/null @@ -1,136 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2005 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.examples.paint; - - -import org.eclipse.swt.events.MouseEvent; -import org.eclipse.swt.graphics.*; - -/** - * The superclass for paint tools that use click-drag-release motions to - * draw objects. - */ -public abstract class DragPaintSession extends BasicPaintSession { - /** - * True if a click-drag is in progress - */ - private boolean dragInProgress = false; - - /** - * The position of the first click in a click-drag - */ - private Point anchorPosition = new Point(-1, -1); - - /** - * A temporary point - */ - private Point tempPosition = new Point(-1, -1); - - /** - * Constructs a PaintSession. - * - * @param getPaintSurface() the drawing surface to use - */ - protected DragPaintSession(PaintSurface paintSurface) { - super(paintSurface); - } - - /** - * Activates the tool. - */ - public void beginSession() { - getPaintSurface(). - setStatusMessage(PaintExample.getResourceString("session.DragInteractivePaint.message")); - anchorPosition.x = -1; - dragInProgress = false; - } - - /** - * Deactivates the tool. - */ - public void endSession() { - } - - /** - * Resets the tool. - * Aborts any operation in progress. - */ - public void resetSession() { - getPaintSurface().clearRubberbandSelection(); - anchorPosition.x = -1; - dragInProgress = false; - } - - /** - * Handles a mouseDown event. - * - * @param event the mouse event detail information - */ - public void mouseDown(MouseEvent event) { - if (event.button != 1) return; - if (dragInProgress) return; // spurious event - dragInProgress = true; - - anchorPosition.x = event.x; - anchorPosition.y = event.y; - } - - /** - * Handles a mouseDoubleClick event. - * - * @param event the mouse event detail information - */ - public void mouseDoubleClick(MouseEvent event) { - } - - /** - * Handles a mouseUp event. - * - * @param event the mouse event detail information - */ - public void mouseUp(MouseEvent event) { - if (event.button != 1) { - resetSession(); // abort if right or middle mouse button pressed - return; - } - if (! dragInProgress) return; // spurious event - dragInProgress = false; - if (anchorPosition.x == -1) return; // spurious event - - getPaintSurface().commitRubberbandSelection(); - } - - /** - * Handles a mouseMove event. - * - * @param event the mouse event detail information - */ - public void mouseMove(MouseEvent event) { - final PaintSurface ps = getPaintSurface(); - if (! dragInProgress) { - ps.setStatusCoord(ps.getCurrentPosition()); - return; - } - ps.setStatusCoordRange(anchorPosition, ps.getCurrentPosition()); - ps.clearRubberbandSelection(); - tempPosition.x = event.x; - tempPosition.y = event.y; - ps.addRubberbandSelection(createFigure(anchorPosition, tempPosition)); - } - - /** - * Template Method: Creates a Figure for drawing rubberband entities and the final product - * - * @param anchor the anchor point - * @param cursor the point marking the current pointer location - */ - protected abstract Figure createFigure(Point anchor, Point cursor); -} |