Java tutorial
/* uDig-Spatial Operations plugins * http://b5m.gipuzkoa.net * (C) 2006, Diputacin Foral de Gipuzkoa, Ordenacin Territorial. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. */ package es.axios.udig.spatialoperations.internal.ui.parameters.clip; import net.refractions.udig.project.ILayer; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.resource.ImageRegistry; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.CCombo; import org.eclipse.swt.custom.CLabel; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.TabFolder; import org.eclipse.swt.widgets.TabItem; import org.opengis.filter.Filter; import org.opengis.referencing.crs.CoordinateReferenceSystem; import com.vividsolutions.jts.geom.Geometry; import es.axios.udig.spatialoperations.internal.i18n.Messages; import es.axios.udig.spatialoperations.internal.ui.processconnectors.ClipCommand; import es.axios.udig.spatialoperations.ui.common.ResultLayerComposite; import es.axios.udig.spatialoperations.ui.common.TargetLayerListenerAdapter; import es.axios.udig.spatialoperations.ui.parameters.AggregatedPresenter; import es.axios.udig.spatialoperations.ui.parameters.ISOCommand; import es.axios.udig.spatialoperations.ui.parameters.SpatialOperationCommand.ParameterName; import es.axios.udig.ui.commons.util.LayerUtil; import es.axios.udig.ui.commons.util.MapUtil; /** * Content for Clip operation. * <p> * This contains the widgets required to capture the inputs for clip operation. * </p> * * @author Mauricio Pazos (www.axios.es) * @author Aritz Davila (www.axios.es) * @author Alain Jimeno (www.axios.es) * * @since 1.1.0 */ final class ClipComposite extends AggregatedPresenter { private static final int GRID_DATA_1_WIDTH_HINT = 100; private static final int GRID_DATA_2_WIDTH_HINT = 150; private static final int GRID_DATA_4_WIDTH_HINT = 45; private static final String SOURCE_LEGEND = "SourceLegend"; //$NON-NLS-1$ private static final String REFERENCE_LEGEND = "ReferenceLegend"; //$NON-NLS-1$ private Group groupSource = null; private CLabel cLabelClippingLayer = null; private CCombo cComboUsingLayer = null; private CLabel cLabel = null; private CLabel textClippingFeatures = null; private CLabel cLabelSourceToClipLayer = null; private CCombo cComboSourceClipLayer = null; private CLabel cLabelSourceFeaturesToClip = null; private CLabel textSourceFeaturesToClip = null; private Group groupTargetInputs = null; private ResultLayerComposite resultComposite = null; private TabFolder tabFolder = null; private Composite basicComposite = null; private Composite advancedComposite = null; private CLabel sourceLegend = null; private CLabel referenceLegend = null; // data private ILayer currentUsingLayer = null; private ILayer currentSourceClipLayer = null; private ImageRegistry imagesRegistry = null; public ClipComposite(Composite parent, int style) { super(parent, style); super.initialize(); } /** * Initializes the content for inputs parameters */ @Override protected final void createContents() { GridLayout gridLayout = new GridLayout(); setLayout(gridLayout); this.imagesRegistry = CreateImageRegistry(); GridData gridData = new GridData(); gridData.horizontalAlignment = GridData.FILL; gridData.grabExcessVerticalSpace = true; gridData.grabExcessHorizontalSpace = true; gridData.verticalAlignment = GridData.FILL; tabFolder = new TabFolder(this, SWT.NONE); tabFolder.setLayoutData(gridData); basicComposite = new Composite(tabFolder, SWT.NONE); basicComposite.setLayoutData(gridData); basicComposite.setLayout(gridLayout); advancedComposite = new Composite(tabFolder, SWT.NONE); advancedComposite.setLayoutData(gridData); advancedComposite.setLayout(gridLayout); GridLayout sourceLayout = new GridLayout(); sourceLayout.numColumns = 5; GridData gridData1 = new GridData(); gridData1.horizontalAlignment = GridData.FILL; gridData1.grabExcessHorizontalSpace = true; gridData1.verticalAlignment = GridData.CENTER; groupSource = new Group(basicComposite, SWT.NONE); groupSource.setLayoutData(gridData1); groupSource.setLayout(sourceLayout); groupSource.setText(Messages.ClipComposite_using_as_clip); createGroupToClipLayer(groupSource); createGroupClippingLayer(groupSource); createGroupResult(); TabItem tabItem = new TabItem(tabFolder, SWT.NONE); tabItem.setText(Messages.Composite_tab_folder_basic); tabItem.setControl(basicComposite); } private ImageRegistry CreateImageRegistry() { ImageRegistry registry = new ImageRegistry(); String imgFile = "images/" + SOURCE_LEGEND + ".gif"; //$NON-NLS-1$ //$NON-NLS-2$ registry.put(SOURCE_LEGEND, ImageDescriptor.createFromFile(ClipComposite.class, imgFile)); imgFile = "images/" + REFERENCE_LEGEND + ".gif"; //$NON-NLS-1$ //$NON-NLS-2$ registry.put(REFERENCE_LEGEND, ImageDescriptor.createFromFile(ClipComposite.class, imgFile)); return registry; } /** * This method initializes groupSource * * @param groupSource */ private void createGroupClippingLayer(final Group groupSource) { GridData gridData1 = new GridData(); gridData1.horizontalAlignment = GridData.BEGINNING; gridData1.verticalAlignment = GridData.CENTER; gridData1.widthHint = GRID_DATA_1_WIDTH_HINT; GridData gridData2 = new GridData(); gridData2.horizontalAlignment = GridData.BEGINNING; gridData2.grabExcessHorizontalSpace = false; gridData2.heightHint = -1; gridData2.widthHint = GRID_DATA_2_WIDTH_HINT; gridData2.verticalAlignment = GridData.CENTER; GridData gridData3 = new GridData(); gridData3.horizontalAlignment = GridData.BEGINNING; gridData3.grabExcessHorizontalSpace = false; gridData3.heightHint = -1; // gridData3.widthHint = GRID_DATA_3_WIDTH_HINT; gridData3.verticalAlignment = GridData.CENTER; GridData gridData4 = new GridData(); gridData4.grabExcessHorizontalSpace = true; gridData4.verticalAlignment = GridData.CENTER; gridData4.horizontalAlignment = GridData.BEGINNING; gridData4.widthHint = GRID_DATA_4_WIDTH_HINT; GridData gridData5 = new GridData(); gridData5.horizontalAlignment = GridData.BEGINNING; gridData5.grabExcessHorizontalSpace = false; gridData5.verticalAlignment = GridData.CENTER; cLabelClippingLayer = new CLabel(groupSource, SWT.NONE); cLabelClippingLayer.setText(Messages.ClipComposite_clipping_layer + ":"); //$NON-NLS-1$ cLabelClippingLayer.setLayoutData(gridData1); cComboUsingLayer = new CCombo(groupSource, SWT.BORDER | SWT.READ_ONLY); cComboUsingLayer.setLayoutData(gridData2); cComboUsingLayer.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { selectedUsingLayerActions(cComboUsingLayer); } }); referenceLegend = new CLabel(groupSource, SWT.NONE); referenceLegend.setText(""); //$NON-NLS-1$ referenceLegend.setLayoutData(gridData5); referenceLegend.setImage(this.imagesRegistry.get(REFERENCE_LEGEND)); cLabel = new CLabel(groupSource, SWT.NONE); cLabel.setText(Messages.ClipComposite_clipping_features + ":"); //$NON-NLS-1$ cLabel.setLayoutData(gridData3); textClippingFeatures = new CLabel(groupSource, SWT.NONE); textClippingFeatures.setText(""); //$NON-NLS-1$ textClippingFeatures.setLayoutData(gridData4); textClippingFeatures.setEnabled(false); } /** * creates "to clip layer" widgets * * @param groupSource * */ private void createGroupToClipLayer(final Group groupSource) { GridData gridData4 = new GridData(); gridData4.grabExcessHorizontalSpace = true; gridData4.verticalAlignment = GridData.CENTER; gridData4.horizontalAlignment = GridData.BEGINNING; gridData4.widthHint = GRID_DATA_4_WIDTH_HINT; GridData gridData3 = new GridData(); gridData3.horizontalAlignment = GridData.BEGINNING; gridData3.grabExcessHorizontalSpace = false; gridData3.verticalAlignment = GridData.CENTER; // gridData3.widthHint = GRID_DATA_3_WIDTH_HINT; GridData gridData2 = new GridData(); gridData2.horizontalAlignment = GridData.BEGINNING; gridData2.grabExcessHorizontalSpace = false; gridData2.verticalAlignment = GridData.CENTER; gridData2.widthHint = GRID_DATA_2_WIDTH_HINT; GridData gridData1 = new GridData(); gridData1.horizontalAlignment = GridData.BEGINNING; gridData1.grabExcessHorizontalSpace = false; gridData1.verticalAlignment = GridData.CENTER; gridData1.widthHint = GRID_DATA_1_WIDTH_HINT; GridData gridData5 = new GridData(); gridData5.horizontalAlignment = GridData.BEGINNING; gridData5.grabExcessHorizontalSpace = false; gridData5.verticalAlignment = GridData.CENTER; GridLayout gridLayout = new GridLayout(); gridLayout.numColumns = 5; GridData gridData = new GridData(); gridData.horizontalAlignment = GridData.FILL; gridData.grabExcessHorizontalSpace = false; gridData.grabExcessHorizontalSpace = true; gridData.verticalAlignment = GridData.CENTER; cLabelSourceToClipLayer = new CLabel(groupSource, SWT.NONE); cLabelSourceToClipLayer.setText(Messages.ClipComposite_layer_to_clip + ":"); //$NON-NLS-1$ cLabelSourceToClipLayer.setLayoutData(gridData1); cComboSourceClipLayer = new CCombo(groupSource, SWT.BORDER | SWT.READ_ONLY); cComboSourceClipLayer.setLayoutData(gridData2); cComboSourceClipLayer.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { selectedClipLayerActions(cComboSourceClipLayer); } }); sourceLegend = new CLabel(groupSource, SWT.NONE); sourceLegend.setText(""); //$NON-NLS-1$ sourceLegend.setLayoutData(gridData5); sourceLegend.setImage(this.imagesRegistry.get(SOURCE_LEGEND)); cLabelSourceFeaturesToClip = new CLabel(groupSource, SWT.NONE); cLabelSourceFeaturesToClip.setText(Messages.ClipComposite_features_to_clip + ":"); //$NON-NLS-1$ cLabelSourceFeaturesToClip.setLayoutData(gridData3); textSourceFeaturesToClip = new CLabel(groupSource, SWT.NONE); textSourceFeaturesToClip.setText(""); //$NON-NLS-1$ textSourceFeaturesToClip.setLayoutData(gridData4); } private void createGroupResult() { GridData gridData = new GridData(); gridData.horizontalAlignment = GridData.FILL; gridData.grabExcessHorizontalSpace = true; gridData.grabExcessVerticalSpace = false; gridData.verticalAlignment = GridData.BEGINNING; groupTargetInputs = new Group(basicComposite, SWT.NONE); groupTargetInputs.setText(Messages.IntersectComposite_result); groupTargetInputs.setLayout(new GridLayout()); groupTargetInputs.setLayoutData(gridData); this.resultComposite = new ResultLayerComposite(this, groupTargetInputs, SWT.NONE, GRID_DATA_1_WIDTH_HINT); GridData resultCompositeGridData = new GridData(); resultCompositeGridData.horizontalAlignment = GridData.FILL; resultCompositeGridData.grabExcessHorizontalSpace = true; resultCompositeGridData.grabExcessVerticalSpace = true; resultCompositeGridData.verticalAlignment = GridData.FILL; this.resultComposite.setLayoutData(resultCompositeGridData); this.resultComposite.addSpecifiedLayerListener(new TargetLayerListenerAdapter() { @Override public void validateTargetLayer() { validateParameters(); } }); } /** * Reinitialize parameter values */ @Override protected final void clearInputs() { // initializes data using the values set by user in this session ClipCommand cmd = (ClipCommand) getCommand(); this.currentUsingLayer = cmd.getCurrentUsingLayer(); this.currentSourceClipLayer = cmd.getCurrentSourceClipLayer(); // initializes widgets this.cComboUsingLayer.removeAll(); this.cComboSourceClipLayer.removeAll(); this.textClippingFeatures.setText(""); //$NON-NLS-1$ this.textSourceFeaturesToClip.setText(""); //$NON-NLS-1$ tabFolder.setSelection(tabFolder.getItem(0)); } /** * Populates layer comboboxs with the current layers. Sets the current layer * current has default for clipping layer. * */ @Override protected void populate() { loadComboWithLayerList(this.cComboSourceClipLayer); loadComboWithLayerList(this.cComboUsingLayer); selectDefaultLayer(); } /** * Changes the count of features selected of the selected layer */ @Override protected final void changedFilterSelectionActions(final ILayer layer, final Filter newFilter) { assert layer != null; assert newFilter != null; if (layer.equals(this.currentSourceClipLayer)) { presentSelectionAllOrBBox(this.currentSourceClipLayer, newFilter, this.textSourceFeaturesToClip); } if (layer.equals(this.currentUsingLayer)) { presentSelectionAllOrBBox(this.currentUsingLayer, newFilter, this.textClippingFeatures); } validateParameters(); } /** * Sets the selected layer in map has default clipping layer. */ private void selectDefaultLayer() { ClipCommand cmd = (ClipCommand) getCommand(); this.currentSourceClipLayer = cmd.getCurrentSourceClipLayer(); if (this.currentSourceClipLayer == null) { ILayer selected = MapUtil.getSelectedLayer(getCurrentMap()); if (LayerUtil.isCompatible(selected, cmd.getDomainValues(ParameterName.SOURCE_GEOMETRY_CLASS))) { this.currentSourceClipLayer = selected; } } setCurrentSourceClipLayer(this.currentSourceClipLayer); changeSelectedLayer(this.currentSourceClipLayer, this.cComboSourceClipLayer); this.currentUsingLayer = cmd.getCurrentUsingLayer(); setCurrentUsingLayer(this.currentUsingLayer); changeSelectedLayer(this.currentUsingLayer, this.cComboUsingLayer); } @Override public void setEnabled(boolean enabled) { groupSource.setEnabled(enabled); cComboUsingLayer.setEnabled(enabled); cComboSourceClipLayer.setEnabled(enabled); groupTargetInputs.setEnabled(enabled); resultComposite.setEnabled(enabled); } /** * @param selectedLayer */ private void setCurrentUsingLayer(ILayer selectedLayer) { if (selectedLayer == null) { return; } this.currentUsingLayer = selectedLayer; presentSelectionAllOrBBox(this.currentUsingLayer, this.currentUsingLayer.getFilter(), this.textClippingFeatures); validateParameters(); } /** * @param selectedLayer */ private void setCurrentSourceClipLayer(final ILayer selectedLayer) { if (selectedLayer == null) { return; } this.currentSourceClipLayer = selectedLayer; presentSelectionAllOrBBox(this.currentSourceClipLayer, this.currentSourceClipLayer.getFilter(), this.textSourceFeaturesToClip); validateParameters(); } /** * Actions associated with layer selection. * * @param comboLayer * @param textFeatures */ private void selectedClipLayerActions(final CCombo comboLayer) { ILayer selectedLayer = getSelecedLayer(comboLayer); if (selectedLayer == null) { return; } setCurrentSourceClipLayer(selectedLayer); } /** * Actions associated with layer selection. * * @param comboLayer * @param textFeatures */ private void selectedUsingLayerActions(final CCombo comboLayer) { ILayer selectedLayer = getSelecedLayer(comboLayer); if (selectedLayer == null) { return; } setCurrentUsingLayer(selectedLayer); } /** * Sets the clip command parameters */ @Override protected void setParametersOnCommand(ISOCommand command) { // Sets the parameters values in controller to do the validation ClipCommand cmd = (ClipCommand) command; Filter usingFilter = null; Filter clipSourceFilter = null; CoordinateReferenceSystem currentUsingCRS = null; CoordinateReferenceSystem currentSourceCRS = null; if (this.currentUsingLayer != null) { usingFilter = getFilter(this.currentUsingLayer); currentUsingCRS = this.currentUsingLayer.getCRS(); } if (this.currentSourceClipLayer != null) { clipSourceFilter = getFilter(this.currentSourceClipLayer); currentSourceCRS = this.currentSourceClipLayer.getCRS(); } // Start setting the parameters on the command. cmd.setInputParams(this.currentUsingLayer, currentUsingCRS, this.currentSourceClipLayer, currentSourceCRS, usingFilter, clipSourceFilter); if (this.resultComposite.isLayerSelected()) { final ILayer targetLayer = this.resultComposite.getCurrentTargetLayer(); cmd.setOutputParams(targetLayer); } else { final String newFeatureTypeName = this.resultComposite.getNewLayerName(); if (newFeatureTypeName != null) { final CoordinateReferenceSystem targetCrs = getCurrentMapCrs(); final Class<? extends Geometry> targetClass = this.resultComposite.getTargetClass(); cmd.setOutputParams(newFeatureTypeName, targetCrs, targetClass); } } } /** * Initializes the widgets with default values. */ @Override protected final void changedLayerListActions() { // change the list of layers cComboUsingLayer.removeAll(); cComboSourceClipLayer.removeAll(); populate(); // FIXME this has been already done inside populate() // changeSelectedLayer(this.currentSourceClipLayer, this.cComboSourceClipLayer); selectedClipLayerActions(this.cComboSourceClipLayer); // // changeSelectedLayer(this.currentUsingLayer, this.cComboUsingLayer); selectedUsingLayerActions(this.cComboUsingLayer); } @Override protected void removeLayerListActions(ILayer layer) { if (layer.equals(this.currentSourceClipLayer)) { currentSourceClipLayer = null; } validateParameters(); } } // @jve:decl-index=0:visual-constraint="10,10"