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package cuchaz.enigma.gui.config;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.image.BufferedImage;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.plaf.metal.MetalLookAndFeel;
import com.formdev.flatlaf.FlatDarkLaf;
import com.formdev.flatlaf.FlatLightLaf;
import com.formdev.flatlaf.FlatSystemProperties;
public enum LookAndFeel {
DEFAULT(false),
DARCULA(false),
METAL(true),
SYSTEM(true),
NONE(true);
// the "JVM default" look and feel, get it at the beginning and store it so we can set it later
private static final javax.swing.LookAndFeel NONE_LAF = UIManager.getLookAndFeel();
private final boolean needsScaling;
private static Boolean isDarkLaf = null;
LookAndFeel(boolean needsScaling) {
this.needsScaling = needsScaling;
}
public boolean needsScaling() {
// FlatLaf-based LaFs do their own scaling so we don't have to do it.
// Running swing-dpi for FlatLaf actually breaks fonts, so we let it scale the GUI.
return needsScaling;
}
public void setGlobalLAF() {
// Configure FlatLaf's UI scale to be our scale factor.
// This is also used for the SVG icons, so it applies even when some other LaF is active.
System.setProperty(FlatSystemProperties.UI_SCALE, Float.toString(UiConfig.getActiveScaleFactor()));
try {
switch (this) {
case NONE -> UIManager.setLookAndFeel(NONE_LAF);
case DEFAULT -> UIManager.setLookAndFeel(new FlatLightLaf());
case METAL -> UIManager.setLookAndFeel(new MetalLookAndFeel());
case DARCULA -> UIManager.setLookAndFeel(new FlatDarkLaf());
case SYSTEM -> UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}
} catch (Exception e) {
throw new Error("Failed to set global look and feel", e);
}
}
public static boolean isDarkLaf() {
if (isDarkLaf != null) {
return isDarkLaf;
}
// a bit of a hack because swing doesn't give any API for that, and we need colors that aren't defined in look and feel
JPanel panel = new JPanel();
panel.setSize(new Dimension(10, 10));
panel.doLayout();
BufferedImage image = new BufferedImage(panel.getSize().width, panel.getSize().height, BufferedImage.TYPE_INT_RGB);
panel.printAll(image.getGraphics());
Color c = new Color(image.getRGB(0, 0));
// convert the color we got to grayscale
int b = (int) (0.3 * c.getRed() + 0.59 * c.getGreen() + 0.11 * c.getBlue());
return isDarkLaf = b < 85;
}
}
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