| /********************************************************************** |
| * Copyright (c) 2005, 2014 IBM Corporation, Ericsson |
| * All rights reserved. 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 - Initial API and implementation |
| * Bernd Hufmann - Updated for TMF |
| **********************************************************************/ |
| |
| package org.eclipse.tracecompass.tmf.ui.views.uml2sd.handlers; |
| |
| import org.eclipse.jface.action.ActionContributionItem; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.action.IContributionItem; |
| import org.eclipse.jface.action.IToolBarManager; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.graphics.Cursor; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.tracecompass.internal.tmf.ui.Activator; |
| import org.eclipse.tracecompass.internal.tmf.ui.ITmfImageConstants; |
| import org.eclipse.tracecompass.tmf.ui.views.uml2sd.SDView; |
| import org.eclipse.tracecompass.tmf.ui.views.uml2sd.SDWidget; |
| import org.eclipse.tracecompass.tmf.ui.views.uml2sd.util.Messages; |
| import org.eclipse.ui.IActionBars; |
| |
| /** |
| * Action class implementation for zooming in, out or reset of zoom. |
| * |
| * @version 1.0 |
| * @author sveyrier |
| * |
| */ |
| public class Zoom extends BaseSDAction { |
| |
| // ------------------------------------------------------------------------ |
| // Constants |
| // ------------------------------------------------------------------------ |
| /** |
| * The Action ID for zooming in. |
| */ |
| public static final String ZOOM_IN_ID = "org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers.ZoomInCoolBar"; //$NON-NLS-1$ |
| /** |
| * The Action ID for zooming out. |
| */ |
| public static final String ZOOM_OUT_ID = "org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers.ZoomOutCoolBar"; //$NON-NLS-1$ |
| /** |
| * The Action ID for reset zooming. |
| */ |
| public static final String RESET_ZOOM_ID = "org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers.ResetZoom"; //$NON-NLS-1$ |
| /** |
| * The Action ID for no zoominf. |
| */ |
| public static final String NO_ZOOM_ID = "org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers.NoZoom"; //$NON-NLS-1$ |
| |
| // ------------------------------------------------------------------------ |
| // Attributes |
| // ------------------------------------------------------------------------ |
| /** |
| * Flag to indicate last zoom in. |
| */ |
| private boolean fLastZoomIn = false; |
| /** |
| * Flag to indicate last zoom out. |
| */ |
| private boolean fLastZoomOut = false; |
| /** |
| * The cursor used when zooming in. |
| */ |
| private final Cursor fZoomInCursor; |
| /** |
| * The cursor used when zooming out. |
| */ |
| private final Cursor fZoomOutCursor; |
| |
| /** |
| * The different zoom actions |
| */ |
| public static enum ZoomType { |
| /** No zoom information */ |
| ZOOM_NONE, |
| /** Zoom in */ |
| ZOOM_IN, |
| /** Zoom out */ |
| ZOOM_OUT, |
| /** Reset to the default zoom level */ |
| ZOOM_RESET |
| } |
| |
| // ------------------------------------------------------------------------ |
| // Constructors |
| // ------------------------------------------------------------------------ |
| |
| /** |
| * Constructor |
| * @param view The view reference |
| * @param type The type of zoom. |
| */ |
| public Zoom(SDView view, ZoomType type) { |
| super(view, "", AS_RADIO_BUTTON); //$NON-NLS-1$ |
| |
| // Pre-create zooming cursors |
| fZoomInCursor = new Cursor(Display.getCurrent(), |
| Activator.getDefault().getImageFromImageRegistry(ITmfImageConstants.IMG_UI_ZOOM_IN).getImageData(), |
| Activator.getDefault().getImageFromImageRegistry(ITmfImageConstants.IMG_UI_ZOOM).getImageData(), 0, 0); |
| |
| fZoomOutCursor = new Cursor(Display.getCurrent(), |
| Activator.getDefault().getImageFromImageRegistry(ITmfImageConstants.IMG_UI_ZOOM_OUT).getImageData(), |
| Activator.getDefault().getImageFromImageRegistry(ITmfImageConstants.IMG_UI_ZOOM).getImageData(), 0, 0); |
| |
| switch (type) { |
| case ZOOM_IN: |
| setText(Messages.SequenceDiagram_ZoomIn); |
| setToolTipText(Messages.SequenceDiagram_ZoomInTheDiagram); |
| setId(ZOOM_IN_ID); |
| setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_ZOOM_IN_MENU)); |
| break; |
| |
| case ZOOM_OUT: |
| setText(Messages.SequenceDiagram_ZoomOut); |
| setToolTipText(Messages.SequenceDiagram_ZoomOutTheDiagram); |
| setId(ZOOM_OUT_ID); |
| setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_ZOOM_OUT_MENU)); |
| break; |
| |
| case ZOOM_RESET: |
| setText(Messages.SequenceDiagram_ResetZoomFactor); |
| setToolTipText(Messages.SequenceDiagram_ResetZoomFactor); |
| setId(RESET_ZOOM_ID); |
| setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_HOME_MENU)); |
| break; |
| |
| case ZOOM_NONE: |
| default: |
| setText(Messages.SequenceDiagram_Select); |
| setToolTipText(Messages.SequenceDiagram_Select); |
| setId(NO_ZOOM_ID); |
| setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_SELECT_MENU)); |
| break; |
| } |
| } |
| |
| // ------------------------------------------------------------------------ |
| // Methods |
| // ------------------------------------------------------------------------ |
| |
| @Override |
| public void run() { |
| |
| if ((getView() == null) || (getView().getSDWidget() == null)) { |
| return; |
| } |
| |
| SDWidget viewer = getView().getSDWidget(); |
| |
| if (getId().equals(ZOOM_OUT_ID)) { |
| // Eclipse 3.0 M7 workaround |
| if (fLastZoomOut == isChecked()) { |
| setChecked(!isChecked()); |
| } |
| |
| viewer.setZoomOutMode(isChecked()); |
| fLastZoomOut = isChecked(); |
| if (isChecked()) { |
| viewer.setCursor(fZoomOutCursor); |
| setActionChecked(NO_ZOOM_ID, false); |
| } else { |
| viewer.setCursor(new Cursor(Display.getDefault(), SWT.CURSOR_ARROW)); |
| setActionChecked(NO_ZOOM_ID, true); |
| } |
| } else if (getId().equals(ZOOM_IN_ID)) { |
| // Eclipse 3.0 M7 workaround |
| if (fLastZoomIn == isChecked()) { |
| setChecked(!isChecked()); |
| } |
| |
| viewer.setZoomInMode(isChecked()); |
| fLastZoomIn = isChecked(); |
| if (isChecked()) { |
| viewer.setCursor(fZoomInCursor); |
| setActionChecked(NO_ZOOM_ID, false); |
| } else { |
| viewer.setCursor(new Cursor(Display.getDefault(), SWT.CURSOR_ARROW)); |
| setActionChecked(NO_ZOOM_ID, true); |
| } |
| } else if (getId().equals(RESET_ZOOM_ID)) { |
| viewer.resetZoomFactor(); |
| |
| // The reset action is a radio button only to uncheck the zoom in and out button |
| // when it is clicked. This avoid adding code to do it manually |
| // We only have to force it to false every time |
| setChecked(false); |
| setActionChecked(NO_ZOOM_ID, true); |
| } else if (getId().equals(NO_ZOOM_ID)) { |
| setChecked(true); |
| viewer.setZoomInMode(false); |
| viewer.setZoomInMode(false); |
| viewer.setCursor(new Cursor(Display.getDefault(), SWT.CURSOR_ARROW)); |
| } |
| } |
| |
| /** |
| * Set action check state of a view action for a given action ID. |
| * |
| * @param id The action ID |
| * @param checked true to check the action, false to uncheck the action |
| */ |
| protected void setActionChecked(String id, boolean checked) { |
| if (getView() != null) { |
| IActionBars bar = getView().getViewSite().getActionBars(); |
| if (bar == null) { |
| return; |
| } |
| IToolBarManager barManager = bar.getToolBarManager(); |
| if (barManager == null) { |
| return; |
| } |
| IContributionItem nextPage = barManager.find(id); |
| if (nextPage instanceof ActionContributionItem) { |
| IAction action = ((ActionContributionItem) nextPage).getAction(); |
| if (action != null) { |
| action.setChecked(checked); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Dispose the action and its resources |
| */ |
| public void dispose() { |
| fZoomInCursor.dispose(); |
| fZoomOutCursor.dispose(); |
| } |
| } |
