From 254ee6f47eebfc00462c10756a92066e82cc1a96 Mon Sep 17 00:00:00 2001
From: Andrew Branson <andrew@andrewbranson.net>
Date: Tue, 21 Jun 2011 15:46:02 +0200
Subject: Initial commit

---
 .../tabs/outcome/form/MultiLinePasteAdapter.java   | 133 +++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100755 source/com/c2kernel/gui/tabs/outcome/form/MultiLinePasteAdapter.java

(limited to 'source/com/c2kernel/gui/tabs/outcome/form/MultiLinePasteAdapter.java')

diff --git a/source/com/c2kernel/gui/tabs/outcome/form/MultiLinePasteAdapter.java b/source/com/c2kernel/gui/tabs/outcome/form/MultiLinePasteAdapter.java
new file mode 100755
index 0000000..d9f6b55
--- /dev/null
+++ b/source/com/c2kernel/gui/tabs/outcome/form/MultiLinePasteAdapter.java
@@ -0,0 +1,133 @@
+package com.c2kernel.gui.tabs.outcome.form;
+import java.awt.*;
+import java.awt.event.*;
+import javax.swing.*;
+
+import com.c2kernel.utils.Logger;
+
+import java.awt.datatransfer.*;
+import java.util.*;
+/**
+* ExcelAdapter enables Copy-Paste Clipboard functionality on JTables.
+* The clipboard data format used by the adapter is compatible with
+* the clipboard format used by Excel. This provides for clipboard
+* interoperability between enabled JTables and Excel.
+*/
+public class MultiLinePasteAdapter implements ActionListener {
+    private String rowstring, value;
+    private Clipboard system;
+    private StringSelection stsel;
+    private JTable jTable1;
+    private Dimension parent;
+    /**
+     * The Excel Adapter is constructed with a
+     * JTable on which it enables Copy-Paste and acts
+     * as a Clipboard listener.
+     */
+    public MultiLinePasteAdapter(JTable myJTable, Dimension parent) {
+        jTable1 = myJTable;
+        this.parent = parent;
+        KeyStroke copy =
+            KeyStroke.getKeyStroke(KeyEvent.VK_C, ActionEvent.CTRL_MASK, false);
+        // Identifying the copy KeyStroke user can modify this
+        // to copy on some other Key combination.
+        KeyStroke paste =
+            KeyStroke.getKeyStroke(KeyEvent.VK_V, ActionEvent.CTRL_MASK, false);
+        // Identifying the Paste KeyStroke user can modify this
+        //to copy on some other Key combination.
+        jTable1.registerKeyboardAction(
+            this,
+            "Copy",
+            copy,
+            JComponent.WHEN_FOCUSED);
+        jTable1.registerKeyboardAction(
+            this,
+            "Paste",
+            paste,
+            JComponent.WHEN_FOCUSED);
+        system = Toolkit.getDefaultToolkit().getSystemClipboard();
+    }
+    /**
+     * Public Accessor methods for the Table on which this adapter acts.
+     */
+    public JTable getJTable() {
+        return jTable1;
+    }
+    public void setJTable(JTable jTable1) {
+        this.jTable1 = jTable1;
+    }
+    /**
+     * This method is activated on the Keystrokes we are listening to
+     * in this implementation. Here it listens for Copy and Paste ActionCommands.
+     * Selections comprising non-adjacent cells result in invalid selection and
+     * then copy action cannot be performed.
+     * Paste is done by aligning the upper left corner of the selection with the
+     * 1st element in the current selection of the JTable.
+     */
+    public void actionPerformed(ActionEvent e) {
+        if (e.getActionCommand().compareTo("Copy") == 0) {
+            StringBuffer sbf = new StringBuffer();
+            // Check to ensure we have selected only a contiguous block of
+            // cells
+            int numcols = jTable1.getSelectedColumnCount();
+            int numrows = jTable1.getSelectedRowCount();
+            int[] rowsselected = jTable1.getSelectedRows();
+            int[] colsselected = jTable1.getSelectedColumns();
+            if (!((numrows - 1
+                == rowsselected[rowsselected.length - 1] - rowsselected[0]
+                && numrows == rowsselected.length)
+                && (numcols - 1
+                    == colsselected[colsselected.length - 1] - colsselected[0]
+                    && numcols == colsselected.length))) {
+                JOptionPane.showMessageDialog(
+                    null,
+                    "Invalid Copy Selection",
+                    "Invalid Copy Selection",
+                    JOptionPane.ERROR_MESSAGE);
+                return;
+            }
+            for (int i = 0; i < numrows; i++) {
+                for (int j = 0; j < numcols; j++) {
+                    sbf.append(
+                        jTable1.getValueAt(rowsselected[i], colsselected[j]));
+                    if (j < numcols - 1)
+                        sbf.append("\t");
+                }
+                sbf.append("\n");
+            }
+            stsel = new StringSelection(sbf.toString());
+            system = Toolkit.getDefaultToolkit().getSystemClipboard();
+            system.setContents(stsel, stsel);
+        }
+        if (e.getActionCommand().compareTo("Paste") == 0) {
+            Logger.msg(5, "Trying to Paste");
+            int startRow = (jTable1.getSelectedRows())[0];
+            int startCol = (jTable1.getSelectedColumns())[0];
+            try {
+                String trstring =
+                    (String) (system.getContents(this).getTransferData(DataFlavor.stringFlavor));
+                Logger.msg(8, "String is:" + trstring);
+                StringTokenizer st1 = new StringTokenizer(trstring, "\n\r");
+                for (int i = 0; st1.hasMoreTokens(); i++) {
+                    rowstring = st1.nextToken();
+                    StringTokenizer st2 = new StringTokenizer(rowstring, "\t");
+                    for (int j = 0; st2.hasMoreTokens(); j++) {
+                        value = st2.nextToken();
+                        if (startRow + i == jTable1.getRowCount())
+                            parent.addRow(startRow+i);
+                        if (startRow + i < jTable1.getRowCount()
+                            && startCol + j < jTable1.getColumnCount())
+                            jTable1.setValueAt(
+                                value,
+                                startRow + i,
+                                startCol + j);
+                        Logger.msg(5, "Putting "+value+" at row="+(startRow+i)+" column="+(startCol+j));
+                    }
+                }
+            } catch (Exception ex) {
+                Logger.exceptionDialog(ex);
+            }
+            
+        }
+    }
+}
-- 
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