jdk/src/macosx/classes/sun/lwawt/LWCheckboxPeer.java
changeset 12047 320a714614e9
child 13143 31c70a66a053
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/macosx/classes/sun/lwawt/LWCheckboxPeer.java	Tue Mar 06 20:34:38 2012 +0000
@@ -0,0 +1,214 @@
+/*
+ * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+
+package sun.lwawt;
+
+import java.awt.Checkbox;
+import java.awt.CheckboxGroup;
+import java.awt.Component;
+import java.awt.Dimension;
+import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
+import java.awt.peer.CheckboxPeer;
+import java.beans.Transient;
+
+import javax.swing.JCheckBox;
+import javax.swing.JComponent;
+import javax.swing.JRadioButton;
+import javax.swing.JToggleButton;
+import javax.swing.SwingUtilities;
+
+final class LWCheckboxPeer
+        extends LWComponentPeer<Checkbox, LWCheckboxPeer.CheckboxDelegate>
+        implements CheckboxPeer, ItemListener {
+
+    LWCheckboxPeer(final Checkbox target,
+                   final PlatformComponent platformComponent) {
+        super(target, platformComponent);
+    }
+
+    @Override
+    protected CheckboxDelegate createDelegate() {
+        return new CheckboxDelegate();
+    }
+
+    @Override
+    protected Component getDelegateFocusOwner() {
+        return getDelegate().getCurrentButton();
+    }
+
+    @Override
+    public void initialize() {
+        super.initialize();
+        setLabel(getTarget().getLabel());
+        setState(getTarget().getState());
+        setCheckboxGroup(getTarget().getCheckboxGroup());
+    }
+
+    @Override
+    public void itemStateChanged(final ItemEvent e) {
+        // group.setSelectedCheckbox() will repaint the component
+        // to let LWCheckboxPeer correctly handle it we should call it
+        // after the current event is processed
+        SwingUtilities.invokeLater(new Runnable() {
+            @Override
+            public void run() {
+                boolean postEvent = true;
+                final CheckboxGroup group = getTarget().getCheckboxGroup();
+                if (group != null) {
+                    if (e.getStateChange() == ItemEvent.SELECTED) {
+                        if (group.getSelectedCheckbox() != getTarget()) {
+                            group.setSelectedCheckbox(getTarget());
+                        } else {
+                            postEvent = false;
+                        }
+                    } else {
+                        postEvent = false;
+                        if (group.getSelectedCheckbox() == getTarget()) {
+                            // Don't want to leave the group with no selected
+                            // checkbox.
+                            getTarget().setState(true);
+                        }
+                    }
+                } else {
+                    getTarget().setState(e.getStateChange()
+                                         == ItemEvent.SELECTED);
+                }
+                if (postEvent) {
+                    postEvent(new ItemEvent(getTarget(),
+                                            ItemEvent.ITEM_STATE_CHANGED,
+                                            getTarget().getLabel(),
+                                            e.getStateChange()));
+                }
+            }
+        });
+    }
+
+    @Override
+    public void setCheckboxGroup(final CheckboxGroup g) {
+        synchronized (getDelegateLock()) {
+            getDelegate().getCurrentButton().removeItemListener(this);
+            getDelegate().setRadioButton(g != null);
+            getDelegate().getCurrentButton().addItemListener(this);
+        }
+        repaintPeer();
+    }
+
+    @Override
+    public void setLabel(final String label) {
+        synchronized (getDelegateLock()) {
+            getDelegate().setText(label);
+        }
+    }
+
+    @Override
+    public void setState(final boolean state) {
+        synchronized (getDelegateLock()) {
+            getDelegate().setSelected(state);
+        }
+        repaintPeer();
+    }
+
+    @Override
+    public boolean isFocusable() {
+        return true;
+    }
+
+    final class CheckboxDelegate extends JComponent {
+
+        private final JCheckBox cb;
+        private final JRadioButton rb;
+
+        CheckboxDelegate() {
+            super();
+            cb = new JCheckBox() {
+                @Override
+                public boolean hasFocus() {
+                    return getTarget().hasFocus();
+                }
+            };
+            rb = new JRadioButton() {
+                @Override
+                public boolean hasFocus() {
+                    return getTarget().hasFocus();
+                }
+            };
+            setLayout(null);
+            setRadioButton(false);
+            add(rb);
+            add(cb);
+        }
+
+        @Override
+        public void setEnabled(final boolean enabled) {
+            super.setEnabled(enabled);
+            rb.setEnabled(enabled);
+            cb.setEnabled(enabled);
+        }
+
+        @Override
+        public void setOpaque(final boolean isOpaque) {
+            super.setOpaque(isOpaque);
+            rb.setOpaque(isOpaque);
+            cb.setOpaque(isOpaque);
+        }
+
+        @Override
+        @Deprecated
+        public void reshape(final int x, final int y, final int w,
+                            final int h) {
+            super.reshape(x, y, w, h);
+            cb.setBounds(0, 0, w, h);
+            rb.setBounds(0, 0, w, h);
+        }
+
+        @Override
+        @Transient
+        public Dimension getMinimumSize() {
+            return getCurrentButton().getMinimumSize();
+        }
+
+        void setRadioButton(final boolean showRadioButton) {
+            rb.setVisible(showRadioButton);
+            cb.setVisible(!showRadioButton);
+        }
+
+        @Transient
+        JToggleButton getCurrentButton() {
+            return cb.isVisible() ? cb : rb;
+        }
+
+        void setText(final String label) {
+            cb.setText(label);
+            rb.setText(label);
+        }
+
+        void setSelected(final boolean state) {
+            cb.setSelected(state);
+            rb.setSelected(state);
+        }
+    }
+}