1 files changed, 180 insertions, 0 deletions
diff --git a/server/src/com/vaadin/ui/TwinColSelect.java b/server/src/com/vaadin/ui/TwinColSelect.java
new file mode 100644
index 0000000000..5539236f77
--- /dev/null
+++ b/server/src/com/vaadin/ui/TwinColSelect.java
@@ -0,0 +1,180 @@
+/* 
+@VaadinApache2LicenseForJavaFiles@
+ */
+
+package com.vaadin.ui;
+
+import java.util.Collection;
+
+import com.vaadin.data.Container;
+import com.vaadin.terminal.PaintException;
+import com.vaadin.terminal.PaintTarget;
+import com.vaadin.terminal.gwt.client.ui.twincolselect.VTwinColSelect;
+
+/**
+ * Multiselect component with two lists: left side for available items and right
+ * side for selected items.
+ */
+@SuppressWarnings("serial")
+public class TwinColSelect extends AbstractSelect {
+
+    private int columns = 0;
+    private int rows = 0;
+
+    private String leftColumnCaption;
+    private String rightColumnCaption;
+
+    /**
+     * 
+     */
+    public TwinColSelect() {
+        super();
+        setMultiSelect(true);
+    }
+
+    /**
+     * @param caption
+     */
+    public TwinColSelect(String caption) {
+        super(caption);
+        setMultiSelect(true);
+    }
+
+    /**
+     * @param caption
+     * @param dataSource
+     */
+    public TwinColSelect(String caption, Container dataSource) {
+        super(caption, dataSource);
+        setMultiSelect(true);
+    }
+
+    /**
+     * Sets the number of columns in the editor. If the number of columns is set
+     * 0, the actual number of displayed columns is determined implicitly by the
+     * adapter.
+     * <p>
+     * The number of columns overrides the value set by setWidth. Only if
+     * columns are set to 0 (default) the width set using
+     * {@link #setWidth(float, int)} or {@link #setWidth(String)} is used.
+     * 
+     * @param columns
+     *            the number of columns to set.
+     */
+    public void setColumns(int columns) {
+        if (columns < 0) {
+            columns = 0;
+        }
+        if (this.columns != columns) {
+            this.columns = columns;
+            requestRepaint();
+        }
+    }
+
+    public int getColumns() {
+        return columns;
+    }
+
+    public int getRows() {
+        return rows;
+    }
+
+    /**
+     * Sets the number of rows in the editor. If the number of rows is set to 0,
+     * the actual number of displayed rows is determined implicitly by the
+     * adapter.
+     * <p>
+     * If a height if set (using {@link #setHeight(String)} or
+     * {@link #setHeight(float, int)}) it overrides the number of rows. Leave
+     * the height undefined to use this method. This is the opposite of how
+     * {@link #setColumns(int)} work.
+     * 
+     * 
+     * @param rows
+     *            the number of rows to set.
+     */
+    public void setRows(int rows) {
+        if (rows < 0) {
+            rows = 0;
+        }
+        if (this.rows != rows) {
+            this.rows = rows;
+            requestRepaint();
+        }
+    }
+
+    /**
+     * @param caption
+     * @param options
+     */
+    public TwinColSelect(String caption, Collection<?> options) {
+        super(caption, options);
+        setMultiSelect(true);
+    }
+
+    @Override
+    public void paintContent(PaintTarget target) throws PaintException {
+        target.addAttribute("type", "twincol");
+        // Adds the number of columns
+        if (columns != 0) {
+            target.addAttribute("cols", columns);
+        }
+        // Adds the number of rows
+        if (rows != 0) {
+            target.addAttribute("rows", rows);
+        }
+
+        // Right and left column captions and/or icons (if set)
+        String lc = getLeftColumnCaption();
+        String rc = getRightColumnCaption();
+        if (lc != null) {
+            target.addAttribute(VTwinColSelect.ATTRIBUTE_LEFT_CAPTION, lc);
+        }
+        if (rc != null) {
+            target.addAttribute(VTwinColSelect.ATTRIBUTE_RIGHT_CAPTION, rc);
+        }
+
+        super.paintContent(target);
+    }
+
+    /**
+     * Sets the text shown above the right column.
+     * 
+     * @param caption
+     *            The text to show
+     */
+    public void setRightColumnCaption(String rightColumnCaption) {
+        this.rightColumnCaption = rightColumnCaption;
+        requestRepaint();
+    }
+
+    /**
+     * Returns the text shown above the right column.
+     * 
+     * @return The text shown or null if not set.
+     */
+    public String getRightColumnCaption() {
+        return rightColumnCaption;
+    }
+
+    /**
+     * Sets the text shown above the left column.
+     * 
+     * @param caption
+     *            The text to show
+     */
+    public void setLeftColumnCaption(String leftColumnCaption) {
+        this.leftColumnCaption = leftColumnCaption;
+        requestRepaint();
+    }
+
+    /**
+     * Returns the text shown above the left column.
+     * 
+     * @return The text shown or null if not set.
+     */
+    public String getLeftColumnCaption() {
+        return leftColumnCaption;
+    }
+
+}