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.plugin;
34:
35: import java.util.ArrayList;
36: import java.util.Arrays;
37: import java.util.Iterator;
38:
39: import com.vividsolutions.jump.feature.Feature;
40: import com.vividsolutions.jump.workbench.WorkbenchContext;
41: import com.vividsolutions.jump.workbench.model.Layer;
42: import com.vividsolutions.jump.workbench.plugin.AbstractPlugIn;
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.EditTransaction;
47:
48: public class DeleteAllFeaturesPlugIn extends AbstractPlugIn {
49: public DeleteAllFeaturesPlugIn() {
50: }
51:
52: public boolean execute(final PlugInContext context)
53: throws Exception {
54: reportNothingToUndoYet(context);
55: ArrayList transactions = new ArrayList();
56: for (Iterator i = Arrays.asList(
57: context.getLayerNamePanel().getSelectedLayers())
58: .iterator(); i.hasNext();) {
59: Layer layer = (Layer) i.next();
60: transactions.add(createTransaction(layer, context));
61: }
62: return EditTransaction.commit(transactions);
63: }
64:
65: private EditTransaction createTransaction(Layer layer,
66: PlugInContext context) {
67: EditTransaction transaction = new EditTransaction(
68: new ArrayList(), getName(), layer,
69: isRollingBackInvalidEdits(context), true, context
70: .getWorkbenchFrame());
71: for (Iterator i = layer.getFeatureCollectionWrapper()
72: .getFeatures().iterator(); i.hasNext();) {
73: Feature feature = (Feature) i.next();
74: transaction.deleteFeature(feature);
75: }
76: return transaction;
77: }
78:
79: public MultiEnableCheck createEnableCheck(
80: WorkbenchContext workbenchContext) {
81: EnableCheckFactory checkFactory = new EnableCheckFactory(
82: workbenchContext);
83: return new MultiEnableCheck()
84: .add(
85: checkFactory
86: .createWindowWithLayerNamePanelMustBeActiveCheck())
87: .add(
88: checkFactory
89: .createAtLeastNLayersMustBeSelectedCheck(1))
90: .add(
91: checkFactory
92: .createSelectedLayersMustBeEditableCheck());
93: }
94: }
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