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Added a per-tree wide selection setting

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This commit is contained in:
Ingo Kegel
2021-01-19 17:46:41 +01:00
parent c6fec0a131
commit 60f3428da7
3 changed files with 64 additions and 13 deletions
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8
flatlaf-core/src/main/java/com/formdev/flatlaf/FlatClientProperties.java
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@@ -670,6 +670,14 @@ public interface FlatClientProperties
*/
String TAB_BUTTON_SELECTED_BACKGROUND = "JToggleButton.tab.selectedBackground";
/**
* Override if a tree shows a wide selection.
* <p>
* <strong>Component</strong> {@link javax.swing.JTree}<br>
* <strong>Value type</strong> {@link java.lang.Boolean}
*/
String TREE_WIDE_SELECTION = "JTree.wideSelection";
//---- helper methods -----------------------------------------------------
/**

41
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTreeUI.java
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@@ -16,6 +16,8 @@
package com.formdev.flatlaf.ui;
import static com.formdev.flatlaf.FlatClientProperties.*;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
@@ -25,6 +27,7 @@ import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.lang.reflect.Field;
import javax.swing.CellRendererPane;
import javax.swing.JComponent;
import javax.swing.JTree;
@@ -119,7 +122,7 @@ public class FlatTreeUI
selectionInactiveBackground = UIManager.getColor( "Tree.selectionInactiveBackground" );
selectionInactiveForeground = UIManager.getColor( "Tree.selectionInactiveForeground" );
selectionBorderColor = UIManager.getColor( "Tree.selectionBorderColor" );
wideSelection = UIManager.getBoolean( "Tree.wideSelection" );
wideSelection = clientPropertyBoolean( tree, TREE_WIDE_SELECTION, UIManager.getBoolean( "Tree.wideSelection" ));
showCellFocusIndicator = UIManager.getBoolean( "Tree.showCellFocusIndicator" );
// scale
@@ -145,9 +148,6 @@ public class FlatTreeUI
@Override
protected MouseListener createMouseListener() {
if( !wideSelection )
return super.createMouseListener();
return new BasicTreeUI.MouseHandler() {
@Override
public void mousePressed( MouseEvent e ) {
@@ -165,7 +165,7 @@ public class FlatTreeUI
}
private MouseEvent handleWideMouseEvent( MouseEvent e ) {
if( !tree.isEnabled() || !SwingUtilities.isLeftMouseButton( e ) || e.isConsumed() )
if( !wideSelection || !tree.isEnabled() || !SwingUtilities.isLeftMouseButton( e ) || e.isConsumed() )
return e;
int x = e.getX();
@@ -192,18 +192,33 @@ public class FlatTreeUI
@Override
protected PropertyChangeListener createPropertyChangeListener() {
if( !wideSelection )
return super.createPropertyChangeListener();
return new BasicTreeUI.PropertyChangeHandler() {
@Override
public void propertyChange( PropertyChangeEvent e ) {
super.propertyChange( e );
if( e.getSource() == tree && e.getPropertyName() == "dropLocation" ) {
JTree.DropLocation oldValue = (JTree.DropLocation) e.getOldValue();
repaintWideDropLocation( oldValue );
repaintWideDropLocation( tree.getDropLocation() );
if (e.getSource() == tree ) {
switch( e.getPropertyName() ) {
case TREE_WIDE_SELECTION:
wideSelection = (Boolean) e.getNewValue();
if (currentCellRenderer instanceof DefaultTreeCellRenderer) {
try {
Field fillBackgroundField = DefaultTreeCellRenderer.class
.getDeclaredField( "fillBackground" );
fillBackgroundField.setAccessible( true );
fillBackgroundField.set( currentCellRenderer, !wideSelection );
} catch( Exception ignored ) {
}
}
tree.repaint();
break;
case "dropLocation":
if (wideSelection) {
JTree.DropLocation oldValue = (JTree.DropLocation) e.getOldValue();
repaintWideDropLocation( oldValue );
repaintWideDropLocation( tree.getDropLocation() );
}
break;
}
}
}

28
flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatTree.java Normal file
View File

@@ -0,0 +1,28 @@
package com.formdev.flatlaf.extras.components;
import javax.swing.*;
import static com.formdev.flatlaf.FlatClientProperties.TREE_WIDE_SELECTION;
import static com.formdev.flatlaf.FlatClientProperties.clientPropertyBoolean;
/**
* Subclass of {@link JTree} that provides easy access to FlatLaf specific client properties.
*
*/
public class FlatTree
extends JTree
implements FlatComponentExtension
{
/**
* Returns if the tree shows a wide selection
*/
public boolean isWideSelection() {
return clientPropertyBoolean( this, TREE_WIDE_SELECTION, UIManager.getBoolean( "Tree.wideSelection" ));
}
/**
* Sets if the tree shows a wide selection
*/
public void setWideSelection(boolean wideSelection) {
putClientProperty( TREE_WIDE_SELECTION, wideSelection);
}
}