/* * This is part of Geomajas, a GIS framework, http://www.geomajas.org/. * * Copyright 2008-2015 Geosparc nv, http://www.geosparc.com/, Belgium. * * The program is available in open source according to the GNU Affero * General Public License. All contributions in this program are covered * by the Geomajas Contributors License Agreement. For full licensing * details, see LICENSE.txt in the project root. */ package org.geomajas.gwt.client.controller.editing; import org.geomajas.geometry.Coordinate; import org.geomajas.gwt.client.action.menu.AttributesAction; import org.geomajas.gwt.client.action.menu.CancelEditingAction; import org.geomajas.gwt.client.action.menu.InsertPointAction; import org.geomajas.gwt.client.action.menu.InsertRingAction; import org.geomajas.gwt.client.action.menu.RemovePointAction; import org.geomajas.gwt.client.action.menu.RemoveRingAction; import org.geomajas.gwt.client.action.menu.SaveEditingAction; import org.geomajas.gwt.client.action.menu.ToggleEditModeAction; import org.geomajas.gwt.client.action.menu.ToggleGeometricInfoAction; import org.geomajas.gwt.client.action.menu.ToggleSnappingAction; import org.geomajas.gwt.client.action.menu.UndoOperationAction; import org.geomajas.gwt.client.controller.editing.EditController.EditMode; import org.geomajas.gwt.client.gfx.paintable.GfxGeometry; import org.geomajas.gwt.client.gfx.style.ShapeStyle; import org.geomajas.gwt.client.map.feature.Feature; import org.geomajas.gwt.client.map.feature.FeatureTransaction; import org.geomajas.gwt.client.map.feature.TransactionGeomIndex; import org.geomajas.gwt.client.map.feature.TransactionGeomIndexUtil; import org.geomajas.gwt.client.map.feature.operation.AddCoordinateOp; import org.geomajas.gwt.client.map.feature.operation.FeatureOperation; import org.geomajas.gwt.client.map.feature.operation.SetCoordinateOp; import org.geomajas.gwt.client.spatial.geometry.Geometry; import org.geomajas.gwt.client.spatial.geometry.LineString; import org.geomajas.gwt.client.spatial.geometry.LinearRing; import org.geomajas.gwt.client.spatial.geometry.Polygon; import org.geomajas.gwt.client.widget.MapWidget; import org.geomajas.gwt.client.widget.MapWidget.RenderGroup; import org.geomajas.gwt.client.widget.MapWidget.RenderStatus; import com.google.gwt.event.dom.client.MouseDownEvent; import com.google.gwt.event.dom.client.MouseEvent; import com.google.gwt.event.dom.client.MouseMoveEvent; import com.google.gwt.event.dom.client.MouseUpEvent; import com.google.gwt.user.client.Event; import com.smartgwt.client.widgets.menu.Menu; import com.smartgwt.client.widgets.menu.MenuItemSeparator; /** * Editing controller for Polygon geometries. * * @author Pieter De Graef */ public class PolygonEditController extends EditController { protected String dragTargetId; protected FeatureTransaction dragTransaction; protected GfxGeometry tempLine1; protected GfxGeometry tempLine2; protected TransactionGeomIndex index; // ------------------------------------------------------------------------- // Constructor: // ------------------------------------------------------------------------- public PolygonEditController(MapWidget mapWidget, EditController parent) { super(mapWidget, parent); } // ------------------------------------------------------------------------- // EditController implementation: // ------------------------------------------------------------------------- public Menu getContextMenu() { if (menu == null) { menu = new Menu(); menu.addItem(new AttributesAction(mapWidget)); menu.addItem(new MenuItemSeparator()); menu.addItem(new UndoOperationAction(mapWidget, this)); menu.addItem(new CancelEditingAction(mapWidget, (ParentEditController) parent)); menu.addItem(new SaveEditingAction(mapWidget, (ParentEditController) parent)); menu.addItem(new ToggleEditModeAction((ParentEditController) parent)); menu.addItem(new MenuItemSeparator()); menu.addItem(new InsertPointAction(mapWidget)); menu.addItem(new RemovePointAction(mapWidget)); menu.addItem(new MenuItemSeparator()); menu.addItem(new InsertRingAction(mapWidget, (ParentEditController) parent)); menu.addItem(new RemoveRingAction(mapWidget)); menu.addItem(new MenuItemSeparator()); menu.addItem(new ToggleGeometricInfoAction(this)); menu.addItem(new ToggleSnappingAction(getFeatureTransaction().getLayer(), this)); } return menu; } public TransactionGeomIndex getGeometryIndex() { if (index == null) { index = new TransactionGeomIndex(); index.setFeatureIndex(0); index.setCoordinateIndex(0); index.setExteriorRing(true); } return index; } public void setGeometryIndex(TransactionGeomIndex geometryIndex) { index = geometryIndex; } public void cleanup() { removeTempLines(); } public boolean isBusy() { // busy when inserting or dragging has started return getEditMode() == EditMode.INSERT_MODE || (getEditMode() == EditMode.DRAG_MODE && dragTargetId != null); } // ------------------------------------------------------------------------- // MapController implementation: // ------------------------------------------------------------------------- public void onMouseDown(MouseDownEvent event) { FeatureTransaction featureTransaction = getFeatureTransaction(); if (featureTransaction != null && parent.getEditMode() == EditMode.DRAG_MODE && event.getNativeButton() != Event.BUTTON_RIGHT) { String targetId = getTargetId(event); if (TransactionGeomIndexUtil.isVertex(targetId)) { dragTargetId = targetId; if (dragTransaction == null) { dragTransaction = (FeatureTransaction) featureTransaction.clone(); } mapWidget.render(featureTransaction, RenderGroup.VECTOR, RenderStatus.DELETE); mapWidget.render(dragTransaction, RenderGroup.VECTOR, RenderStatus.ALL); createTempLines(featureTransaction, event); } } } public void onMouseMove(MouseMoveEvent event) { FeatureTransaction featureTransaction = getFeatureTransaction(); if (featureTransaction != null && parent.getEditMode() == EditMode.DRAG_MODE && dragTargetId != null) { TransactionGeomIndex index = TransactionGeomIndexUtil.getIndex(dragTargetId); Feature feature = dragTransaction.getNewFeatures()[index.getFeatureIndex()]; FeatureOperation op = new SetCoordinateOp(index, getWorldPosition(event)); op.execute(feature); mapWidget.render(dragTransaction, RenderGroup.VECTOR, RenderStatus.DELETE); mapWidget.render(dragTransaction, RenderGroup.VECTOR, RenderStatus.ALL); } else if (featureTransaction != null && parent.getEditMode() == EditMode.INSERT_MODE) { updateTempLines(featureTransaction, event); } } public void onMouseUp(MouseUpEvent event) { if (event.getNativeButton() != Event.BUTTON_RIGHT) { FeatureTransaction featureTransaction = getFeatureTransaction(); if (featureTransaction != null && parent.getEditMode() == EditMode.INSERT_MODE) { // The creation of a new point: FeatureOperation op = new AddCoordinateOp(getGeometryIndex(), getWorldPosition(event)); featureTransaction.execute(op); mapWidget.render(featureTransaction, RenderGroup.VECTOR, RenderStatus.DELETE); mapWidget.render(featureTransaction, RenderGroup.VECTOR, RenderStatus.ALL); updateGeometricInfo(); } else if (featureTransaction != null && parent.getEditMode() == EditMode.DRAG_MODE && dragTargetId != null) { // Done dragging a point: TransactionGeomIndex index = TransactionGeomIndexUtil.getIndex(dragTargetId); // TODO: check validity FeatureOperation op = new SetCoordinateOp(index, getWorldPosition(event)); featureTransaction.execute(op); if (dragTransaction != null) { mapWidget.render(dragTransaction, RenderGroup.VECTOR, RenderStatus.DELETE); dragTransaction = null; } mapWidget.render(featureTransaction, RenderGroup.VECTOR, RenderStatus.ALL); dragTargetId = null; removeTempLines(); updateGeometricInfo(); } } } // Getters and setters: public void setEditMode(EditMode editMode) { super.setEditMode(editMode); if (editMode == EditMode.DRAG_MODE) { removeTempLines(); } } // Private methods: protected void createTempLines(FeatureTransaction featureTransaction, MouseEvent<?> event) { if (featureTransaction.getNewFeatures() != null && featureTransaction.getNewFeatures().length > 0 && tempLine1 == null) { Coordinate position = getPanPosition(event); Geometry geom = getGeometryIndex().getGeometry(featureTransaction); LineString lineString = geom.getGeometryFactory().createLineString(new Coordinate[] { position, position }); tempLine1 = new GfxGeometry("LineStringEditController.updateLine1"); tempLine1.setGeometry(lineString); tempLine1.setStyle(new ShapeStyle("#FFFFFF", 0, "#FF3322", 1, 1)); mapWidget.render(tempLine1, RenderGroup.VECTOR, RenderStatus.ALL); tempLine2 = new GfxGeometry("LineStringEditController.updateLine2"); tempLine2.setGeometry(lineString); tempLine2.setStyle(new ShapeStyle("#FFFFFF", 0, "#FF3322", 1, 1)); mapWidget.render(tempLine2, RenderGroup.VECTOR, RenderStatus.ALL); } } protected void updateTempLines(FeatureTransaction featureTransaction, MouseEvent<?> event) { if (featureTransaction.getNewFeatures() != null && featureTransaction.getNewFeatures().length > 0) { if (tempLine1 == null) { createTempLines(featureTransaction, event); } Polygon polygon = (Polygon) getGeometryIndex().getGeometry(featureTransaction); LinearRing ring = getGeometryIndex().getLinearRing(polygon); if (ring != null) { Coordinate[] coordinates = ring.getCoordinates(); if (coordinates != null && coordinates.length > 0) { Coordinate lastCoordinate = coordinates[coordinates.length - 2]; LineString lineString1 = featureTransaction.getNewFeatures()[index.getFeatureIndex()].getGeometry() .getGeometryFactory().createLineString( new Coordinate[] {getTransformer().worldToPan(lastCoordinate), getPanPosition(event)}); tempLine1.setGeometry(lineString1); mapWidget.render(tempLine1, RenderGroup.VECTOR, RenderStatus.ALL); LineString lineString2 = featureTransaction.getNewFeatures()[index.getFeatureIndex()].getGeometry() .getGeometryFactory().createLineString( new Coordinate[] {getTransformer().worldToPan(coordinates[0]), getPanPosition(event)}); tempLine2.setGeometry(lineString2); mapWidget.render(tempLine2, RenderGroup.VECTOR, RenderStatus.ALL); } } } } protected void removeTempLines() { if (tempLine1 != null) { mapWidget.render(tempLine1, RenderGroup.VECTOR, RenderStatus.DELETE); tempLine1 = null; } if (tempLine2 != null) { mapWidget.render(tempLine2, RenderGroup.VECTOR, RenderStatus.DELETE); tempLine2 = null; } } }