diff options
Diffstat (limited to 'libjava/javax/swing/JList.java')
| -rw-r--r-- | libjava/javax/swing/JList.java | 253 |
1 files changed, 190 insertions, 63 deletions
diff --git a/libjava/javax/swing/JList.java b/libjava/javax/swing/JList.java index d88a4db599c..adb72892450 100644 --- a/libjava/javax/swing/JList.java +++ b/libjava/javax/swing/JList.java @@ -1,5 +1,5 @@ /* JList.java -- - Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. This file is part of GNU Classpath. @@ -129,34 +129,6 @@ public class JList extends JComponent implements Accessible, Scrollable */ public static final int HORIZONTAL_WRAP = 2; - /** Fired in a PropertyChangeEvent when the "cellRenderer" property changes. */ - public static final String CELL_RENDERER_PROPERTY_CHANGED = "cellRenderer"; - - /** Fired in a PropertyChangeEvent when the "fixedCellHeight" property changes. */ - public static final String FIXED_CELL_HEIGHT_PROPERTY_CHANGED = "fixedCellHeight"; - - /** Fired in a PropertyChangeEvent when the "fixedCellWidth" property changes. */ - public static final String FIXED_CELL_WIDTH_PROPERTY_CHANGED = "fixedCellWidth"; - - /** Fired in a PropertyChangeEvent when the "layoutOrientation" property changes. */ - public static final String LAYOUT_ORIENTATION_PROPERTY_CHANGED = "layoutOrientation"; - - /** Fired in a PropertyChangeEvent when the "model" property changes. */ - public static final String MODEL_PROPERTY_CHANGED = "model"; - - /** Fired in a PropertyChangeEvent when the "prototypeCellValue" property changes. */ - public static final String PROTOTYPE_CELL_VALUE_PROPERTY_CHANGED = "prototypeCellValue"; - - /** Fired in a PropertyChangeEvent when the "selectionBackground" property changes. */ - public static final String SELECTION_BACKGROUND_PROPERTY_CHANGED = "selectionBackground"; - - /** Fired in a PropertyChangeEvent when the "selectionForeground" property changes. */ - public static final String SELECTION_FOREGROUND_PROPERTY_CHANGED = "selectionForeground"; - - /** Fired in a PropertyChangeEvent when the "selectionModel" property changes. */ - public static final String SELECTION_MODEL_PROPERTY_CHANGED = "selectionModel"; - - /** * This property indicates whether "drag and drop" functions are enabled * on the list. @@ -187,7 +159,6 @@ public class JList extends JComponent implements Accessible, Scrollable * is one of the integer constants {@link #VERTICAL}, {@link * #VERTICAL_WRAP}, or {@link #HORIZONTAL_WRAP}. */ - int layoutOrientation; /** This property holds the data elements displayed by the list. */ @@ -250,12 +221,10 @@ public class JList extends JComponent implements Accessible, Scrollable */ int visibleRowCount; - - /** * Fire a {@link ListSelectionEvent} to all the registered ListSelectionListeners. */ - void fireSelectionValueChanged(int firstIndex, int lastIndex, boolean isAdjusting) + protected void fireSelectionValueChanged(int firstIndex, int lastIndex, boolean isAdjusting) { ListSelectionEvent evt = new ListSelectionEvent(this, firstIndex, lastIndex, isAdjusting); ListSelectionListener listeners[] = getListSelectionListeners(); @@ -265,7 +234,6 @@ public class JList extends JComponent implements Accessible, Scrollable } } - /** * This private listener propagates {@link ListSelectionEvent} events * from the list's "selectionModel" property to the list's {@link @@ -365,12 +333,22 @@ public class JList extends JComponent implements Accessible, Scrollable listListener = new ListListener(); setModel(new DefaultListModel()); - setSelectionModel(new DefaultListSelectionModel()); + setSelectionModel(createSelectionModel()); updateUI(); } /** + * Creates the default <code>ListSelectionModel</code>. + * + * @return the <code>ListSelectionModel</code> + */ + protected ListSelectionModel createSelectionModel() + { + return new DefaultListSelectionModel(); + } + + /** * Gets the value of the {@link #fixedCellHeight} property. This property * may be <code>-1</code> to indicate that no cell height has been * set. This property is also set implicitly when the @@ -399,9 +377,12 @@ public class JList extends JComponent implements Accessible, Scrollable */ public void setFixedCellHeight(int h) { + if (fixedCellHeight == h) + return; + int old = fixedCellHeight; fixedCellHeight = h; - firePropertyChange(FIXED_CELL_WIDTH_PROPERTY_CHANGED, old, h); + firePropertyChange("fixedCellWidth", old, h); } @@ -428,17 +409,19 @@ public class JList extends JComponent implements Accessible, Scrollable * #prototypeCellValue} property is set, but setting it explicitly * overrides the width computed from {@link #prototypeCellValue}. * - * @see #getFixedCellWidth + * @see #getFixedCellHeight * @see #getPrototypeCellValue */ - public void setFixedCellWidth(int h) + public void setFixedCellWidth(int w) { - int old = fixedCellHeight; - fixedCellHeight = h; - firePropertyChange(FIXED_CELL_HEIGHT_PROPERTY_CHANGED, old, h); + if (fixedCellWidth == w) + return; + + int old = fixedCellWidth; + fixedCellWidth = w; + firePropertyChange("fixedCellWidth", old, w); } - /** * Gets the value of the {@link #visibleRowCount} property. * @@ -501,6 +484,11 @@ public class JList extends JComponent implements Accessible, Scrollable return (ListSelectionListener[]) getListeners(ListSelectionListener.class); } + public int getSelectionMode() + { + return selectionModel.getSelectionMode(); + } + /** * Sets the list's "selectionMode" property, which simply mirrors the * same property on the list's {@link #selectionModel} property. This @@ -723,9 +711,12 @@ public class JList extends JComponent implements Accessible, Scrollable */ public void setSelectionBackground(Color c) { + if (selectionBackground == c) + return; + Color old = selectionBackground; selectionBackground = c; - firePropertyChange(SELECTION_BACKGROUND_PROPERTY_CHANGED, old, c); + firePropertyChange("selectionBackground", old, c); repaint(); } @@ -746,9 +737,12 @@ public class JList extends JComponent implements Accessible, Scrollable */ public void setSelectionForeground(Color c) { + if (selectionForeground == c) + return; + Color old = selectionForeground; selectionForeground = c; - firePropertyChange(SELECTION_FOREGROUND_PROPERTY_CHANGED, old, c); + firePropertyChange("selectionForeground", old, c); } /** @@ -850,13 +844,16 @@ public class JList extends JComponent implements Accessible, Scrollable /** * Sets the value of the {@link #celLRenderer} property. * - * @param cellRenderer The new property value + * @param renderer The new property value */ - public void setCellRenderer(ListCellRenderer cr) + public void setCellRenderer(ListCellRenderer renderer) { + if (cellRenderer == renderer) + return; + ListCellRenderer old = cellRenderer; - cellRenderer = cr; - firePropertyChange(CELL_RENDERER_PROPERTY_CHANGED, old, cr); + cellRenderer = renderer; + firePropertyChange("cellRenderer", old, renderer); revalidate(); repaint(); } @@ -878,15 +875,21 @@ public class JList extends JComponent implements Accessible, Scrollable * * @param model The new property value */ - public void setModel(ListModel m) + public void setModel(ListModel model) { - ListModel old = model; - if (old != null) - old.removeListDataListener(listListener); - model = m; - if (model != null) - model.addListDataListener(listListener); - firePropertyChange(MODEL_PROPERTY_CHANGED, old, m); + if (this.model == model) + return; + + if (this.model != null) + this.model.removeListDataListener(listListener); + + ListModel old = this.model; + this.model = model; + + if (this.model != null) + this.model.addListDataListener(listListener); + + firePropertyChange("model", old, model); revalidate(); repaint(); } @@ -902,17 +905,23 @@ public class JList extends JComponent implements Accessible, Scrollable * {@link #listListener} is unsubscribed from the existing selection * model, if it exists, and re-subscribed to the new selection model. * - * @param l The new property value + * @param model The new property value */ - public void setSelectionModel(ListSelectionModel l) + public void setSelectionModel(ListSelectionModel model) { + if (selectionModel == model) + return; + + if (selectionModel != null) + selectionModel.removeListSelectionListener(listListener); + ListSelectionModel old = selectionModel; - if (old != null) - old.removeListSelectionListener(listListener); - selectionModel = l; + selectionModel = model; + if (selectionModel != null) selectionModel.addListSelectionListener(listListener); - firePropertyChange(SELECTION_MODEL_PROPERTY_CHANGED, old, l); + + firePropertyChange("selectionModel", old, model); revalidate(); repaint(); } @@ -992,6 +1001,9 @@ public class JList extends JComponent implements Accessible, Scrollable */ public void setPrototypeCellValue(Object obj) { + if (prototypeCellValue == obj) + return; + Object old = prototypeCellValue; Component comp = getCellRenderer() .getListCellRendererComponent(this, obj, 0, false, false); @@ -999,7 +1011,7 @@ public class JList extends JComponent implements Accessible, Scrollable fixedCellWidth = d.width; fixedCellHeight = d.height; prototypeCellValue = obj; - firePropertyChange(PROTOTYPE_CELL_VALUE_PROPERTY_CHANGED, old, obj); + firePropertyChange("prototypeCellValue", old, obj); } public AccessibleContext getAccessibleContext() @@ -1196,4 +1208,119 @@ public class JList extends JComponent implements Accessible, Scrollable { return false; } + + public int getAnchorSelectionIndex() + { + return selectionModel.getAnchorSelectionIndex(); + } + + public int getLeadSelectionIndex() + { + return selectionModel.getLeadSelectionIndex(); + } + + public int getMinSelectionIndex() + { + return selectionModel.getMaxSelectionIndex(); + } + + public int getMaxSelectionIndex() + { + return selectionModel.getMaxSelectionIndex(); + } + + public void clearSelection() + { + selectionModel.clearSelection(); + } + + public void setSelectionInterval(int anchor, int lead) + { + selectionModel.setSelectionInterval(anchor, lead); + } + + public void addSelectionInterval(int anchor, int lead) + { + selectionModel.addSelectionInterval(anchor, lead); + } + + public void removeSelectionInterval(int index0, int index1) + { + selectionModel.removeSelectionInterval(index0, index1); + } + + /** + * Returns the value of the <code>valueIsAdjusting</code> property. + * + * @return the value + */ + public boolean getValueIsAdjusting() + { + return valueIsAdjusting; + } + + /** + * Sets the <code>valueIsAdjusting</code> property. + * + * @param isAdjusting the new value + */ + public void setValueIsAdjusting(boolean isAdjusting) + { + valueIsAdjusting = isAdjusting; + } + + /** + * Return the value of the <code>dragEnabled</code> property. + * + * @return the value + * + * @since 1.4 + */ + public boolean getDragEnabled() + { + return dragEnabled; + } + + /** + * Set the <code>dragEnabled</code> property. + * + * @param enabled new value + * + * @since 1.4 + */ + public void setDragEnabled(boolean enabled) + { + dragEnabled = enabled; + } + + /** + * Returns the layout orientation. + * + * @return the orientation, one of <code>JList.VERTICAL</code>, + * <code>JList.VERTICAL_WRAP</code> and <code>JList.HORIZONTAL_WRAP</code> + * + * @since 1.4 + */ + public int getLayoutOrientation() + { + return layoutOrientation; + } + + /** + * Sets the layout orientation. + * + * @param orientation the orientation to set, one of <code>JList.VERTICAL</code>, + * <code>JList.VERTICAL_WRAP</code> and <code>JList.HORIZONTAL_WRAP</code> + * + * @since 1.4 + */ + public void setLayoutOrientation(int orientation) + { + if (layoutOrientation == orientation) + return; + + int old = layoutOrientation; + layoutOrientation = orientation; + firePropertyChange("layoutOrientation", old, orientation); + } } |