/*
* Copyright (c) 1995, 2003, 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.awt.motif;
import java.awt.*;
import java.awt.peer.*;
import java.awt.event.ItemEvent;
class MChoicePeer extends MComponentPeer implements ChoicePeer {
boolean inUpCall=false;
native void create(MComponentPeer parent);
native void pReshape(int x, int y, int width, int height);
native void pSelect(int index, boolean init);
native void appendItems(String[] items);
void initialize() {
Choice opt = (Choice)target;
int itemCount = opt.countItems();
String[] items = new String[itemCount];
for (int i=0; i < itemCount; i++) {
items[i] = opt.getItem(i);
}
if (itemCount > 0) {
appendItems(items);
pSelect(opt.getSelectedIndex(), true);
}
super.initialize();
}
public MChoicePeer(Choice target) {
super(target);
}
public boolean isFocusable() {
return true;
}
public Dimension getMinimumSize() {
FontMetrics fm = getFontMetrics(target.getFont());
Choice c = (Choice)target;
int w = 0;
for (int i = c.countItems() ; i-- > 0 ;) {
w = Math.max(fm.stringWidth(c.getItem(i)), w);
}
return new Dimension(32 + w, Math.max(fm.getHeight() + 8, 15) + 5);
}
public native void setFont(Font f);
public void add(String item, int index) {
addItem(item, index);
// Adding an item can change the size of the Choice, so do
// a reshape, based on the font size.
Rectangle r = target.getBounds();
reshape(r.x, r.y, 0, 0);
}
public native void remove(int index);
public native void removeAll();
/**
* DEPRECATED, but for now, called by add(String, int).
*/
public native void addItem(String item, int index);
// public native void remove(int index);
public native void setBackground(Color c);
public native void setForeground(Color c);
public void select(int index) {
if (!inUpCall) {
pSelect(index, false);
}
}
void notifySelection(String item) {
Choice c = (Choice)target;
ItemEvent e = new ItemEvent(c, ItemEvent.ITEM_STATE_CHANGED,
item, ItemEvent.SELECTED);
postEvent(e);
}
// NOTE: This method is called by privileged threads.
// DO NOT INVOKE CLIENT CODE ON THIS THREAD!
void action(final int index) {
final Choice c = (Choice)target;
inUpCall = false; /* Used to prevent native selection. */
MToolkit.executeOnEventHandlerThread(c, new Runnable() {
public void run() {
String item;
synchronized(c) {
if (index >= c.getItemCount()) {
/* Nothing to do when the list is too short */
return;
}
inUpCall = true; /* Prevent native selection. */
c.select(index); /* set value in target */
item = c.getItem(index);
inUpCall = false;
}
notifySelection(item);
}
});
}
/*
* Print the native component by rendering the Motif look ourselves.
* ToDo(aim): needs to query native motif for more accurate size and
* color information.
*/
public void print(Graphics g) {
Choice ch = (Choice)target;
Dimension d = ch.size();
Color bg = ch.getBackground();
Color fg = ch.getForeground();
g.setColor(bg);
g.fillRect(2, 2, d.width-1, d.height-1);
draw3DRect(g, bg, 1, 1, d.width-2, d.height-2, true);
draw3DRect(g, bg, d.width - 18, (d.height / 2) - 3, 10, 6, true);
g.setColor(fg);
g.setFont(ch.getFont());
FontMetrics fm = g.getFontMetrics();
String lbl = ch.getSelectedItem();
if (lbl == null){
lbl = "";
}
if (lbl != ""){
g.drawString(lbl, 5, (d.height + fm.getMaxAscent()-fm.getMaxDescent())/2);
}
target.print(g);
}
/**
* DEPRECATED
*/
public Dimension minimumSize() {
return getMinimumSize();
}
protected void disposeImpl() {
freeNativeData();
super.disposeImpl();
}
private native void freeNativeData();
}