/*
* The Unified Mapping Platform (JUMP) is an extensible, interactive GUI
* for visualizing and manipulating spatial features with geometry and attributes.
*
* JUMP is Copyright (C) 2003 Vivid Solutions
*
* This program implements extensions to JUMP and is
* Copyright (C) 2004 Integrated Systems Analysts, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* For more information, contact:
*
* Integrated Systems Analysts, Inc.
* 630C Anchors St., Suite 101
* Fort Walton Beach, Florida
* USA
*
* (850)862-7321
*/
package org.openjump.core.ui.plugin.edittoolbox.cursortools;
import java.awt.geom.NoninvertibleTransformException;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.LineString;
import com.vividsolutions.jts.operation.valid.IsValidOp;
import com.vividsolutions.jump.I18N;
import com.vividsolutions.jump.workbench.ui.EditTransaction;
import com.vividsolutions.jump.workbench.ui.LayerNamePanelProxy;
import com.vividsolutions.jump.workbench.ui.cursortool.CursorTool;
import com.vividsolutions.jump.workbench.ui.cursortool.editing.FeatureDrawingUtil;
public class DrawConstrainedLineStringTool extends ConstrainedMultiClickTool {
private FeatureDrawingUtil featureDrawingUtil;
final static String drawConstrainedLineString =I18N.get("org.openjump.core.ui.plugin.edittoolbox.cursortools.DrawConstrainedLineStringTool.Draw-Constrained-LineString");
final static String TheLinestringMustHaveAtLeast2Points =I18N.get("org.openjump.core.ui.plugin.edittoolbox.cursortools.DrawConstrainedLineStringTool.The-linestring-must-have-at-least-2-points");
protected DrawConstrainedLineStringTool(FeatureDrawingUtil featureDrawingUtil) {
drawClosed = false;
this.featureDrawingUtil = featureDrawingUtil;
}
public static CursorTool create(LayerNamePanelProxy layerNamePanelProxy) {
FeatureDrawingUtil featureDrawingUtil = new FeatureDrawingUtil(layerNamePanelProxy);
return featureDrawingUtil.prepare(new DrawConstrainedLineStringTool(
featureDrawingUtil), true);
}
public String getName() {
//Specify name explicitly, otherwise it will be "Draw Line String" [Jon Aquino]
return drawConstrainedLineString;
}
public Icon getIcon() {
return new ImageIcon(getClass().getResource("DrawLinestringConstrained.gif"));
}
protected void gestureFinished() throws Exception {
reportNothingToUndoYet();
if (!checkLineString()) {
return;
}
execute(featureDrawingUtil.createAddCommand(getLineString(),
isRollingBackInvalidEdits(), getPanel(), this));
}
protected LineString getLineString() throws NoninvertibleTransformException {
return new GeometryFactory().createLineString(toArray(
getCoordinates()));
}
protected boolean checkLineString() throws NoninvertibleTransformException {
if (getCoordinates().size() < 2) {
getPanel().getContext().warnUser(TheLinestringMustHaveAtLeast2Points);
return false;
}
IsValidOp isValidOp = new IsValidOp(getLineString());
if (!isValidOp.isValid()) {
getPanel().getContext().warnUser(isValidOp.getValidationError()
.getMessage());
if (getWorkbench().getBlackboard().get(EditTransaction.ROLLING_BACK_INVALID_EDITS_KEY, false)) {
return false;
}
}
return true;
}
}