dorkbox/SystemTray
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Swing checkbox now extends Swing MenuItem. Fixed size of checkmark

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This commit is contained in:
nathan 2017-07-01 16:16:49 +02:00
parent f64feecaed
commit fd492a74e9
1 changed files with 29 additions and 43 deletions
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72
src/dorkbox/systemTray/swingUI/SwingMenuItemCheckbox.java
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@ -17,7 +17,6 @@ package dorkbox.systemTray.swingUI;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import javax.swing.ImageIcon;
import javax.swing.JMenuItem;
@ -26,41 +25,47 @@ import dorkbox.systemTray.Checkbox;
import dorkbox.systemTray.Entry;
import dorkbox.systemTray.SystemTray;
import dorkbox.systemTray.peer.CheckboxPeer;
import dorkbox.systemTray.util.ImageUtils;
import dorkbox.systemTray.util.HeavyCheckMark;
import dorkbox.util.FontUtil;
import dorkbox.util.SwingUtil;
class SwingMenuItemCheckbox implements CheckboxPeer {
private final SwingMenu parent;
private final JMenuItem _native = new JMenuItem();
class SwingMenuItemCheckbox extends SwingMenuItem implements CheckboxPeer {
// these have to be volatile, because they can be changed from any thread
private volatile ActionListener callback;
private volatile boolean isChecked = false;
private static ImageIcon checkedIcon;
private static ImageIcon uncheckedIcon;
private static volatile ImageIcon checkedIcon;
// this is ALWAYS called on the EDT.
SwingMenuItemCheckbox(final SwingMenu parent, final Entry entry) {
this.parent = parent;
if (SystemTray.SWING_UI != null) {
_native.setUI(SystemTray.SWING_UI.getItemUI(_native, entry));
}
parent._native.add(_native);
super(parent, entry);
if (checkedIcon == null) {
// from Brankic1979, public domain
File checkedFile = ImageUtils.resizeAndCache(ImageUtils.ENTRY_SIZE, ImageUtils.class.getResource("checked_32.png"));
checkedIcon = new ImageIcon(checkedFile.getAbsolutePath());
try {
JMenuItem jMenuItem = new JMenuItem();
File uncheckedFile = ImageUtils.getTransparentImage(ImageUtils.ENTRY_SIZE);
uncheckedIcon = new ImageIcon(uncheckedFile.getAbsolutePath());
// do the same modifications that would also happen (if specified) for the actual displayed menu items
if (SystemTray.SWING_UI != null) {
jMenuItem.setUI(SystemTray.SWING_UI.getItemUI(jMenuItem, null));
}
// this is the largest size of an image used in a JMenuItem, before the size of the JMenuItem is forced to be larger
int menuImageSize = SystemTray.get()
.getMenuImageSize();
// Having the checkmark size the same size as the letter X is a reasonably nice size.
int size = FontUtil.getFontHeight(jMenuItem.getFont(), "X");
// we have to to the left/right as well, otherwise the checkmark will (possibly) not be centered
int sizePadding = (menuImageSize - size) / 2;
checkedIcon = new ImageIcon(HeavyCheckMark.get(jMenuItem.getForeground(), size,
0, sizePadding, 0, sizePadding));
} catch(Exception e) {
SystemTray.logger.error("Error creating check-mark image.", e);
}
}
_native.setIcon(uncheckedIcon);
}
@Override
@ -154,29 +159,10 @@ class SwingMenuItemCheckbox implements CheckboxPeer {
_native.setIcon(checkedIcon);
}
else {
_native.setIcon(uncheckedIcon);
_native.setIcon(SwingMenuItem.transparentIcon);
}
}
});
}
}
@Override
public
void remove() {
//noinspection Duplicates
SwingUtil.invokeLater(new Runnable() {
@Override
public
void run() {
if (callback != null) {
_native.removeActionListener(callback);
callback = null;
}
parent._native.remove(_native);
_native.removeAll();
}
});
}
}