[10881] | 1 | // License: GPL. For details, see LICENSE file.
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| 2 | package org.openstreetmap.josm.gui.datatransfer;
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| 3 |
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| 4 | import java.awt.datatransfer.UnsupportedFlavorException;
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| 5 | import java.io.IOException;
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[10936] | 6 | import java.util.Arrays;
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[10881] | 7 | import java.util.Collection;
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| 8 |
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| 9 | import javax.swing.JComponent;
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| 10 | import javax.swing.TransferHandler;
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| 11 |
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| 12 | import org.openstreetmap.josm.Main;
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| 13 | import org.openstreetmap.josm.data.coor.EastNorth;
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| 14 | import org.openstreetmap.josm.gui.datatransfer.importers.AbstractOsmDataPaster;
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| 15 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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| 16 | import org.openstreetmap.josm.tools.bugreport.BugReport;
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| 17 |
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| 18 | /**
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| 19 | * A transfer handler class that allows you to manage a prioritized stack of transfer handlers.
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| 20 | * @author Michael Zangl
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| 21 | * @since 10881
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| 22 | */
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| 23 | public abstract class AbstractStackTransferHandler extends TransferHandler {
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| 24 |
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| 25 | protected abstract Collection<AbstractOsmDataPaster> getSupportedPasters();
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| 26 |
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| 27 | @Override
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| 28 | public int getSourceActions(JComponent c) {
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| 29 | return COPY;
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| 30 | }
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| 31 |
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| 32 | @Override
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| 33 | public boolean canImport(TransferSupport support) {
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| 34 | // import everything for now, only support copy.
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| 35 | for (AbstractOsmDataPaster df : getSupportedPasters()) {
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| 36 | if (df.supports(support)) {
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| 37 | return true;
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| 38 | }
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| 39 | }
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| 40 | return false;
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| 41 | }
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| 42 |
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| 43 | @Override
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| 44 | public boolean importData(TransferSupport support) {
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| 45 | return importData(support, Main.getLayerManager().getEditLayer(), null);
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| 46 | }
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| 47 |
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| 48 | protected boolean importData(TransferSupport support, OsmDataLayer layer, EastNorth center) {
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| 49 | for (AbstractOsmDataPaster df : getSupportedPasters()) {
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| 50 | if (df.supports(support)) {
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| 51 | try {
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[10936] | 52 | if (Main.isDebugEnabled()) {
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| 53 | Main.debug("{0} pasting {1} at {2}", df.getClass().getSimpleName(), Arrays.toString(support.getDataFlavors()), center);
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| 54 | }
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[10881] | 55 | if (df.importData(support, layer, center)) {
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| 56 | return true;
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| 57 | }
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| 58 | } catch (UnsupportedFlavorException | IOException e) {
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| 59 | Main.warn(e);
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| 60 | } catch (RuntimeException e) {
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[10936] | 61 | BugReport.intercept(e).put("paster", df).put("flavors", support::getDataFlavors).warn();
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[10881] | 62 | }
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| 63 | }
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| 64 | }
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| 65 | return super.importData(support);
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| 66 | }
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| 67 | }
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