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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 7246 | schaersvoo | 1 | /* |
| 2 | Sketch Elements: Chemistry molecular diagram drawing tool. |
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| 3 | |||
| 4 | (c) 2008 Dr. Alex M. Clark |
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| 5 | |||
| 6 | Released as GNUware, under the Gnu Public License (GPL) |
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| 7 | |||
| 8 | See www.gnu.org for details. |
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| 9 | */ |
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| 10 | |||
| 11 | package WIMSchem; |
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| 12 | |||
| 13 | import java.io.*; |
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| 14 | import java.awt.*; |
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| 15 | import java.util.*; |
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| 16 | import java.awt.image.*; |
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| 17 | import java.awt.event.*; |
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| 18 | import java.awt.datatransfer.*; |
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| 19 | import javax.swing.*; |
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| 20 | |||
| 21 | public class DraggableMolecule extends JLabel implements MouseListener,MouseMotionListener |
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| 22 | { |
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| 23 | EditorPane src; |
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| 24 | TransferMoleculeSource trans; |
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| 25 | |||
| 26 | public DraggableMolecule(EditorPane src) |
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| 27 | { |
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| 28 | this.src=src; |
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| 29 | setIcon(new ImageIcon(getClass().getResource("/images/SmallIcon.png"))); |
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| 30 | |||
| 31 | addMouseListener(this); |
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| 32 | addMouseMotionListener(this); |
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| 33 | |||
| 34 | trans=new TransferMoleculeSource(src); |
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| 35 | setTransferHandler(trans); |
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| 36 | } |
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| 37 | |||
| 38 | public void mouseEntered(MouseEvent e) {} |
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| 39 | public void mouseExited(MouseEvent e) {} |
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| 40 | public void mouseClicked(MouseEvent e) {} |
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| 41 | public void mousePressed(MouseEvent e) |
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| 42 | { |
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| 43 | if (src.molData().numAtoms()>0) trans.exportAsDrag(this,e,TransferHandler.COPY); |
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| 44 | } |
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| 45 | public void mouseReleased(MouseEvent e) {} |
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| 46 | public void mouseMoved(MouseEvent e) {} |
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| 47 | public void mouseDragged(MouseEvent e) {} |
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| 48 | |||
| 49 | // Class for describing the content of that which is dragged from this control. |
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| 50 | |||
| 51 | class TransferMoleculeSource extends TransferHandler |
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| 52 | { |
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| 53 | EditorPane src; |
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| 54 | |||
| 55 | public TransferMoleculeSource(EditorPane src) {this.src=src;} |
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| 56 | public boolean canImport(TransferHandler.TransferSupport info) {return false;} |
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| 57 | public int getSourceActions(JComponent c) {return COPY;} |
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| 58 | public void exportAsDrag(JComponent source,InputEvent e,int action) |
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| 59 | { |
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| 60 | super.exportAsDrag(source,e,action); |
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| 61 | } |
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| 62 | protected void exportDone(JComponent source,Transferable data,int action) |
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| 63 | { |
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| 64 | super.exportDone(source,data,action); |
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| 65 | } |
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| 66 | protected Transferable createTransferable(JComponent c) |
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| 67 | { |
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| 68 | Molecule mol=/*src.molData()*/ src.selectedSubgraph(); |
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| 69 | try |
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| 70 | { |
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| 71 | StringWriter sw=new StringWriter(); |
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| 72 | BufferedWriter bw=new BufferedWriter(sw); |
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| 73 | MoleculeStream.writeMDLMOL(bw,mol); |
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| 74 | MoleculeStream.writeNative(bw,mol); |
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| 75 | return new StringSelection(sw.toString()); |
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| 76 | } |
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| 77 | catch (IOException ex) {return null;} |
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| 78 | } |
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| 79 | } |
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| 80 | } |