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Code Issues Actions Packages Projects Releases Wiki Activity

FileChooser: added (optional) shortcuts panel (issue #100)

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This commit is contained in:
Karl Tauber
2022-04-25 23:06:10 +02:00
parent 024b6daaf6
commit 045263ae58
5 changed files with 304 additions and 1 deletions
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269
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatFileChooserUI.java
View File

@@ -19,11 +19,19 @@ package com.formdev.flatlaf.ui;
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.RenderingHints;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.File;
import java.lang.reflect.Method;
import java.util.function.Function;
import javax.swing.AbstractButton;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.ButtonGroup;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
@@ -34,12 +42,16 @@ import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JToggleButton;
import javax.swing.JToolBar;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.filechooser.FileSystemView;
import javax.swing.filechooser.FileView;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.metal.MetalFileChooserUI;
import javax.swing.table.TableCellRenderer;
import com.formdev.flatlaf.FlatClientProperties;
import com.formdev.flatlaf.util.LoggingFacade;
import com.formdev.flatlaf.util.ScaledImageIcon;
import com.formdev.flatlaf.util.SystemInfo;
import com.formdev.flatlaf.util.UIScale;
@@ -133,12 +145,21 @@ import com.formdev.flatlaf.util.UIScale;
* @uiDefault FileChooser.listViewActionLabelText String
* @uiDefault FileChooser.detailsViewActionLabelText String
*
* <!-- FlatFileChooserUI -->
*
* @uiDefault FileChooser.shortcuts.buttonSize Dimension optional; default is 84,64
* @uiDefault FileChooser.shortcuts.iconSize Dimension optional; default is 32,32
* @uiDefault FileChooser.shortcuts.filesFunction Function<File[], File[]>
* @uiDefault FileChooser.shortcuts.displayNameFunction Function<File, String>
* @uiDefault FileChooser.shortcuts.iconFunction Function<File, Icon>
*
* @author Karl Tauber
*/
public class FlatFileChooserUI
extends MetalFileChooserUI
{
private final FlatFileView fileView = new FlatFileView();
private FlatShortcutsPanel shortcutsPanel;
public static ComponentUI createUI( JComponent c ) {
return new FlatFileChooserUI( (JFileChooser) c );
@@ -153,6 +174,25 @@ public class FlatFileChooserUI
super.installComponents( fc );
patchUI( fc );
if( !UIManager.getBoolean( "FileChooser.noPlacesBar" ) ) { // same as in Windows L&F
FlatShortcutsPanel panel = createShortcutsPanel( fc );
if( panel.getComponentCount() > 0 ) {
shortcutsPanel = panel;
fc.add( shortcutsPanel, BorderLayout.LINE_START );
fc.addPropertyChangeListener( shortcutsPanel );
}
}
}
@Override
public void uninstallComponents( JFileChooser fc ) {
super.uninstallComponents( fc );
if( shortcutsPanel != null ) {
fc.removePropertyChangeListener( shortcutsPanel );
shortcutsPanel = null;
}
}
private void patchUI( JFileChooser fc ) {
@@ -250,9 +290,19 @@ public class FlatFileChooserUI
return p;
}
/** @since 2.3 */
protected FlatShortcutsPanel createShortcutsPanel( JFileChooser fc ) {
return new FlatShortcutsPanel( fc );
}
@Override
public Dimension getPreferredSize( JComponent c ) {
return UIScale.scale( super.getPreferredSize( c ) );
Dimension prefSize = super.getPreferredSize( c );
Dimension minSize = getMinimumSize( c );
int shortcutsPanelWidth = (shortcutsPanel != null) ? shortcutsPanel.getPreferredSize().width : 0;
return new Dimension(
Math.max( prefSize.width, minSize.width + shortcutsPanelWidth ),
Math.max( prefSize.height, minSize.height ) );
}
@Override
@@ -316,4 +366,221 @@ public class FlatFileChooserUI
return icon;
}
}
//---- class FlatShortcutsPanel -------------------------------------------
/** @since 2.3 */
public static class FlatShortcutsPanel
extends JToolBar
implements PropertyChangeListener
{
private final JFileChooser fc;
private final Dimension buttonSize;
private final Dimension iconSize;
private final Function<File[], File[]> filesFunction;
private final Function<File, String> displayNameFunction;
private final Function<File, Icon> iconFunction;
protected final File[] files;
protected final JToggleButton[] buttons;
protected final ButtonGroup buttonGroup;
@SuppressWarnings( "unchecked" )
public FlatShortcutsPanel( JFileChooser fc ) {
super( JToolBar.VERTICAL );
this.fc = fc;
setFloatable( false );
buttonSize = UIScale.scale( getUIDimension( "FileChooser.shortcuts.buttonSize", 84, 64 ) );
iconSize = getUIDimension( "FileChooser.shortcuts.iconSize", 32, 32 );
filesFunction = (Function<File[], File[]>) UIManager.get( "FileChooser.shortcuts.filesFunction" );
displayNameFunction = (Function<File, String>) UIManager.get( "FileChooser.shortcuts.displayNameFunction" );
iconFunction = (Function<File, Icon>) UIManager.get( "FileChooser.shortcuts.iconFunction" );
FileSystemView fsv = fc.getFileSystemView();
File[] files = getChooserShortcutPanelFiles( fsv );
if( filesFunction != null )
files = filesFunction.apply( files );
this.files = files;
// create toolbar buttons
buttons = new JToggleButton[files.length];
buttonGroup = new ButtonGroup();
for( int i = 0; i < files.length; i++ ) {
// wrap drive path
if( fsv.isFileSystemRoot( files[i] ) )
files[i] = fsv.createFileObject( files[i].getAbsolutePath() );
File file = files[i];
String name = getDisplayName( fsv, file );
Icon icon = getIcon( fsv, file );
// remove path from name
int lastSepIndex = name.lastIndexOf( File.separatorChar );
if( lastSepIndex >= 0 && lastSepIndex < name.length() - 1 )
name = name.substring( lastSepIndex + 1 );
// scale icon (if necessary)
if( icon instanceof ImageIcon )
icon = new ScaledImageIcon( (ImageIcon) icon, iconSize.width, iconSize.height );
else if( icon != null )
icon = new ShortcutIcon( icon, iconSize.width, iconSize.height );
// create button
JToggleButton button = createButton( name, icon );
button.addActionListener( e -> {
fc.setCurrentDirectory( file );
} );
add( button );
buttonGroup.add( button );
buttons[i] = button;
}
directoryChanged( fc.getCurrentDirectory() );
}
private Dimension getUIDimension( String key, int defaultWidth, int defaultHeight ) {
Dimension size = UIManager.getDimension( key );
if( size == null )
size = new Dimension( defaultWidth, defaultHeight );
return size;
}
protected JToggleButton createButton( String name, Icon icon ) {
JToggleButton button = new JToggleButton( name, icon );
button.setVerticalTextPosition( SwingConstants.BOTTOM );
button.setHorizontalTextPosition( SwingConstants.CENTER );
button.setAlignmentX( Component.CENTER_ALIGNMENT );
button.setIconTextGap( 0 );
button.setPreferredSize( buttonSize );
button.setMaximumSize( buttonSize );
return button;
}
protected File[] getChooserShortcutPanelFiles( FileSystemView fsv ) {
try {
if( SystemInfo.isJava_12_orLater ) {
Method m = fsv.getClass().getMethod( "getChooserShortcutPanelFiles" );
File[] files = (File[]) m.invoke( fsv );
// on macOS and Linux, files consists only of the user home directory
if( files.length == 1 && files[0].equals( new File( System.getProperty( "user.home" ) ) ) )
files = new File[0];
return files;
} else if( SystemInfo.isWindows ) {
Class<?> cls = Class.forName( "sun.awt.shell.ShellFolder" );
Method m = cls.getMethod( "get", String.class );
return (File[]) m.invoke( null, "fileChooserShortcutPanelFolders" );
}
} catch( Exception ex ) {
LoggingFacade.INSTANCE.logSevere( null, ex );
}
// fallback
return new File[0];
}
protected String getDisplayName( FileSystemView fsv, File file ) {
if( displayNameFunction != null ) {
String name = displayNameFunction.apply( file );
if( name != null )
return name;
}
return fsv.getSystemDisplayName( file );
}
protected Icon getIcon( FileSystemView fsv, File file ) {
if( iconFunction != null ) {
Icon icon = iconFunction.apply( file );
if( icon != null )
return icon;
}
// Java 17+ supports getting larger system icons
if( SystemInfo.isJava_17_orLater ) {
try {
Method m = fsv.getClass().getMethod( "getSystemIcon", File.class, int.class, int.class );
return (Icon) m.invoke( fsv, file, iconSize.width, iconSize.height );
} catch( Exception ex ) {
LoggingFacade.INSTANCE.logSevere( null, ex );
}
}
// get system icon in default size 16x16
return fsv.getSystemIcon( file );
}
protected void directoryChanged( File file ) {
if( file != null ) {
String absolutePath = file.getAbsolutePath();
for( int i = 0; i < files.length; i++ ) {
// also compare path because otherwise selecting "Documents"
// in "Look in" combobox would not select "Documents" shortcut item
if( files[i].equals( file ) || files[i].getAbsolutePath().equals( absolutePath ) ) {
buttons[i].setSelected( true );
return;
}
}
}
buttonGroup.clearSelection();
}
@Override
public void propertyChange( PropertyChangeEvent e ) {
switch( e.getPropertyName() ) {
case JFileChooser.DIRECTORY_CHANGED_PROPERTY:
directoryChanged( fc.getCurrentDirectory() );
break;
}
}
}
//---- class ShortcutIcon -------------------------------------------------
private static class ShortcutIcon
implements Icon
{
private final Icon icon;
private final int iconWidth;
private final int iconHeight;
ShortcutIcon( Icon icon, int iconWidth, int iconHeight ) {
this.icon = icon;
this.iconWidth = iconWidth;
this.iconHeight = iconHeight;
}
@Override
public void paintIcon( Component c, Graphics g, int x, int y ) {
Graphics2D g2 = (Graphics2D) g.create();
try {
// set rendering hint for the case that the icon is a bitmap (not used for vector icons)
g2.setRenderingHint( RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC );
double scale = (double) getIconWidth() / (double) icon.getIconWidth();
g2.translate( x, y );
g2.scale( scale, scale );
icon.paintIcon( c, g2, 0, 0 );
} finally {
g2.dispose();
}
}
@Override
public int getIconWidth() {
return UIScale.scale( iconWidth );
}
@Override
public int getIconHeight() {
return UIScale.scale( iconHeight );
}
}
}

2
flatlaf-core/src/main/java/com/formdev/flatlaf/util/SystemInfo.java
View File

@@ -50,6 +50,7 @@ public class SystemInfo
public static final long javaVersion;
public static final boolean isJava_9_orLater;
public static final boolean isJava_11_orLater;
/** @since 2.3 */ public static final boolean isJava_12_orLater;
public static final boolean isJava_15_orLater;
/** @since 2 */ public static final boolean isJava_17_orLater;
/** @since 2 */ public static final boolean isJava_18_orLater;
@@ -92,6 +93,7 @@ public class SystemInfo
javaVersion = scanVersion( System.getProperty( "java.version" ) );
isJava_9_orLater = (javaVersion >= toVersion( 9, 0, 0, 0 ));
isJava_11_orLater = (javaVersion >= toVersion( 11, 0, 0, 0 ));
isJava_12_orLater = (javaVersion >= toVersion( 12, 0, 0, 0 ));
isJava_15_orLater = (javaVersion >= toVersion( 15, 0, 0, 0 ));
isJava_17_orLater = (javaVersion >= toVersion( 17, 0, 0, 0 ));
isJava_18_orLater = (javaVersion >= toVersion( 18, 0, 0, 0 ));