01: /*
02: * The Unified Mapping Platform (JUMP) is an extensible, interactive GUI
03: * for visualizing and manipulating spatial features with geometry and attributes.
04: *
05: * Copyright (C) 2003 Vivid Solutions
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU General Public License
09: * as published by the Free Software Foundation; either version 2
10: * of the License, or (at your option) any later version.
11: *
12: * This program is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: * GNU General Public License for more details.
16: *
17: * You should have received a copy of the GNU General Public License
18: * along with this program; if not, write to the Free Software
19: * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20: *
21: * For more information, contact:
22: *
23: * Vivid Solutions
24: * Suite #1A
25: * 2328 Government Street
26: * Victoria BC V8T 5G5
27: * Canada
28: *
29: * (250)385-6040
30: * www.vividsolutions.com
31: */
32:
33: package com.vividsolutions.jump.workbench.ui.zoom;
34:
35: import javax.swing.ImageIcon;
36: import javax.swing.JComponent;
37:
38: import com.vividsolutions.jts.util.Assert;
39: import com.vividsolutions.jump.I18N;
40: import com.vividsolutions.jump.workbench.WorkbenchContext;
41: import com.vividsolutions.jump.workbench.plugin.AbstractPlugIn;
42: import com.vividsolutions.jump.workbench.plugin.EnableCheck;
43: import com.vividsolutions.jump.workbench.plugin.EnableCheckFactory;
44: import com.vividsolutions.jump.workbench.plugin.MultiEnableCheck;
45: import com.vividsolutions.jump.workbench.plugin.PlugInContext;
46: import com.vividsolutions.jump.workbench.ui.LayerViewPanel;
47: import com.vividsolutions.jump.workbench.ui.Viewport;
48: import com.vividsolutions.jump.workbench.ui.images.IconLoader;
49:
50: public class ZoomNextPlugIn extends AbstractPlugIn {
51: public ZoomNextPlugIn() {
52: }
53:
54: public boolean execute(PlugInContext context) throws Exception {
55: reportNothingToUndoYet(context);
56:
57: Viewport viewport = context.getLayerViewPanel().getViewport();
58: Assert.isTrue(viewport.getZoomHistory().hasNext());
59: viewport.getZoomHistory().setAdding(false);
60:
61: try {
62: viewport.zoom(viewport.getZoomHistory().next());
63: } finally {
64: viewport.getZoomHistory().setAdding(true);
65: }
66:
67: return true;
68: }
69:
70: public MultiEnableCheck createEnableCheck(
71: final WorkbenchContext workbenchContext) {
72: EnableCheckFactory checkFactory = new EnableCheckFactory(
73: workbenchContext);
74:
75: return new MultiEnableCheck()
76: .add(
77: checkFactory
78: .createWindowWithLayerViewPanelMustBeActiveCheck())
79: .add(new EnableCheck() {
80: public String check(JComponent component) {
81: LayerViewPanel layerViewPanel = workbenchContext
82: .getLayerViewPanel();
83: return (layerViewPanel == null || //[UT] 20.10.2005 not quite the error mesg
84: !layerViewPanel.getViewport().getZoomHistory()
85: .hasNext()) ? I18N
86: .get("ui.zoom.ZoomNextPlugIn.already-at-end")
87: : null;
88: }
89: });
90: }
91:
92: public ImageIcon getIcon() {
93: return IconLoader.icon("Right.gif");
94: }
95: }
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