Я пытался изменить цвет фона JTextPane, содержащийся как ячейка JTable, с проблемами, связанными с этим вопросом JTable, обновить ячейку цветов, когда LookAndFeel Nimbus или GTK используются
Позже я обнаружил ошибку (и не применимое для меня решение) https://bugs.openjdk.java.net/browse/JDK-8058704?jql=order%20by%20lastViewed%20DESC
UIManager.put("TextPane[Enabled].backgroundPainter", new Painter<JComponent>() {
@Override
public void paint(Graphics2D g, JComponent comp, int width, int height) {
g.setColor(comp.getBackground());
g.fillRect(0, 0, width, height);
}
});
И этот ответ https://stackoverflow.com/a/22674770/1410223
JEditorPane area = new JEditorPane();
Color bgColor = Color.BLACK;
UIDefaults defaults = new UIDefaults();
defaults.put("EditorPane[Enabled].backgroundPainter", bgColor);
area.putClientProperty("Nimbus.Overrides", defaults);
area.putClientProperty("Nimbus.Overrides.InheritDefaults", true);
area.setBackground(bgColor);
Мне также нужен исходный цвет Nimbus и цвет для выбора фона ячейки JTable ...
Здесь полный и функциональный код (исправление импорта библиотек).
public class JTextPaneSynthTest extends JFrame {
public JTextPaneSynthTest() {
JTextPane textPane = new JTextPane();
textPane.setText("something");
MetalLookAndFeel metalLAF = new MetalLookAndFeel(); //BasicTextPaneUI
MotifLookAndFeel motifLAF = new MotifLookAndFeel(); //MotifTextPaneUI
NimbusLookAndFeel nimbusLAF = new NimbusLookAndFeel(); //NimbusLookAndFeel extends SynthLookAndFeel
SynthLookAndFeel synthLAF = new SynthLookAndFeel(); //SynthTextPaneUI // SynthLookAndFeel extends BasicLookAndFeel
BasicTextPaneUI basicTextPaneUI = new BasicTextPaneUI(); // BasicTextPaneUI extends BasicEditorPaneUI
MotifTextPaneUI motifTextPaneUI = new MotifTextPaneUI(); // MotifTextPaneUI extends BasicTextPaneUI
SynthTextPaneUI synthTextPaneUI = new SynthTextPaneUI(); // SynthTextPaneUI extends SynthEditorPaneUI (SynthEditorPaneUI extends BasicEditorPaneUI implements SynthUI)
String laf = UIManager.getLookAndFeel().getName();
System.out.println("laf:" + laf);
if (laf.contains("Nimbus") || laf.contains("GTK+")) {
textPane.setUI(getSynthTextPaneUI());
textPane.revalidate();
}
TextUI textUI = textPane.getUI();
System.out.println("textUI.getClass():" + textUI.getClass());
JButton button = new JButton("Change Color");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
textPane.setBackground(Color.green);
textPane.setForeground(Color.red);
textPane.repaint();
}
});
JPanel lower = new JPanel();
lower.setLayout(new BoxLayout(lower, BoxLayout.X_AXIS));
lower.add(button);
lower.add(textPane);
JPanel main = new JPanel();
main.setLayout(new BoxLayout(main, BoxLayout.Y_AXIS));
main.add(lower);
this.add(main);
this.setSize(800, 600);
this.setVisible(true);
}
public static void main(String[] args) {
try {
/*
javax.swing.UIManager.setLookAndFeel("javax.swing.plaf.nimbus.NimbusLookAndFeel");
javax.swing.UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
javax.swing.UIManager.setLookAndFeel("com.sun.java.swing.plaf.motif.MotifLookAndFeel");
javax.swing.UIManager.setLookAndFeel("com.apple.laf.AquaLookAndFeel");
javax.swing.UIManager.setLookAndFeel("com.sun.java.swing.plaf.gtk.GTKLookAndFeel");
javax.swing.UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
javax.swing.UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsClassicLookAndFeel");
*/
javax.swing.UIManager.setLookAndFeel("javax.swing.plaf.nimbus.NimbusLookAndFeel");
} catch (Exception ex) {
ex.printStackTrace();
}
new JTextPaneSynthTest();
}
private static SynthTextPaneUI getSynthTextPaneUI() {
return new SynthTextPaneUI() {
@Override
public void installUI(JComponent c) {
super.installUI(c);
updateBackground(c.getBackground());
updateForeground(c.getForeground());
updateFont(c.getFont());
}
private void updateBackground(Color color) {
StyledDocument doc = (StyledDocument) getComponent().getDocument();
//doc.setCharacterAttributes(0, doc.getLength(), s, true);
Style style = doc.getStyle(StyleContext.DEFAULT_STYLE);
if (style == null) {
return;
}
if (color == null) {
style.removeAttribute(StyleConstants.Background);
} else {
StyleConstants.setBackground(style, color);
}
}
private void updateForeground(Color color) {
StyledDocument doc = (StyledDocument) getComponent().getDocument();
Style style = doc.getStyle(StyleContext.DEFAULT_STYLE);
if (style == null) {
return;
}
if (color == null) {
style.removeAttribute(StyleConstants.Foreground);
} else {
StyleConstants.setForeground(style, color);
}
}
private void updateFont(Font font) {
StyledDocument doc = (StyledDocument) getComponent().getDocument();
Style style = doc.getStyle(StyleContext.DEFAULT_STYLE);
if (style == null) {
return;
}
if (font == null) {
style.removeAttribute(StyleConstants.FontFamily);
style.removeAttribute(StyleConstants.FontSize);
style.removeAttribute(StyleConstants.Bold);
style.removeAttribute(StyleConstants.Italic);
} else {
StyleConstants.setFontFamily(style, font.getName());
StyleConstants.setFontSize(style, font.getSize());
StyleConstants.setBold(style, font.isBold());
StyleConstants.setItalic(style, font.isItalic());
}
}
};
}
}
Код для изменения цвета ячеек JTable (Он не используется в предыдущем классе, только для демонстрации последствий ошибки)
private class CellRenderer extends DefaultTableCellRenderer implements TableCellRenderer {
private final Panel panel = new Panel(); // This class contains a JTextPane, named textPane
//javax.swing.table.TableCellRenderer
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
if (value instanceof Info) {
panel.setData((Info) value);
String laf = UIManager.getLookAndFeel().getName().toLowerCase();
Color background;
Color foreground;
if (laf.contains("nimbus")) {
NimbusLookAndFeel nimbusLAF = new NimbusLookAndFeel();
if (isSelected) {
background = (nimbusLAF.getDerivedColor("nimbusSelectionBackground", 0.0f, 0.0f, 0.0f, 0, false));
foreground = (nimbusLAF.getDerivedColor("nimbusLightBackground", 0.0f, 0.0f, 0.0f, 0, false));
} else {
if (row % 2 == 0) {
background = nimbusLAF.getDerivedColor("Table.background", 0.0f, 0.0f, 0.0f, 0, false);
} else {
background = nimbusLAF.getDerivedColor("Table.alternateRowColor", 0.0f, 0.0f, 0.0f, 0, false);
}
foreground = nimbusLAF.getDerivedColor("Table.foreground", 0.0f, 0.0f, 0.0f, 0, false);
}
} else {
if (isSelected) {
background = (Color) UIManager.get("Table.selectionBackground");
foreground = (Color) UIManager.get("Table.selectionForeground");
} else {
background = (Color) UIManager.get("Table.background");
foreground = (Color) UIManager.get("Table.foreground");
}
}
// In order to fix the problem with GTK LookAndFeel
background = new Color(background.getRed(), background.getGreen(), background.getBlue());
foreground = new Color(foreground.getRed(), foreground.getGreen(), foreground.getBlue());
panel.getTextPane().setBackground(background);
panel.getTextPane().setForeground(foreground);
return panel;
}
return super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
}
}
Я пытался просмотреть наследие LookAndFeel, чтобы найти множество решений, но не смог.
//http://hg.openjdk.java.net/jdk8/jdk8/jdk/file/687fd7c7986d/src/macosx/classes/com/apple/laf/AquaLookAndFeel.java
//AquaLookAndFeel aquaLAF = new AquaLookAndFeel(); //AquaTextPaneUI // AquaLookAndFeel extends BasicLookAndFeel
//http://hg.openjdk.java.net/jdk8/jdk8/jdk/file/687fd7c7986d/src/macosx/classes/com/apple/laf/AquaTextPaneUI.java
//AquaTextPaneUI aquaTextPaneUI = new AquaTextPaneUI(); // AquaTextPaneUI extends BasicTextPaneUI
//http://hg.openjdk.java.net/jdk8/jdk8/jdk/file/687fd7c7986d/src/share/classes/com/sun/java/swing/plaf/gtk/GTKLookAndFeel.java
//GTKLookAndFeel gtkLAF = new GTKLookAndFeel(); //SynthTextPaneUI // GTKLookAndFeel extends SynthLookAndFeel
//http://hg.openjdk.java.net/jdk8/jdk8/jdk/file/687fd7c7986d/src/share/classes/com/sun/java/swing/plaf/windows/WindowsLookAndFeel.java
//WindowsLookAndFeel windowsLAF = new WindowsLookAndFeel(); //WindowsTextPaneUI // WindowsLookAndFeel extends BasicLookAndFeel
//http://hg.openjdk.java.net/jdk8/jdk8/jdk/file/687fd7c7986d/src/share/classes/com/sun/java/swing/plaf/windows/WindowsTextPaneUI.java
//WindowsTextPaneUI windowsTextPaneUI = new WindowsTextPaneUI(); //WindowsTextPaneUI extends BasicTextPaneUI (BasicTextPaneUI extends BasicEditorPaneUI)
Какие методы вы предлагаете переопределить (изменить цвет фона JTextPane при использовании Nimbus), чтобы решить эту проблему путем изменения кода LookAndFeels?
