+++ /dev/null
-package be.nikiroo.utils.ui;
-
-import java.awt.Color;
-import java.awt.GradientPaint;
-import java.awt.Graphics;
-import java.awt.Graphics2D;
-import java.awt.Paint;
-import java.awt.RadialGradientPaint;
-import java.awt.RenderingHints;
-
-import javax.swing.JComponent;
-import javax.swing.JScrollPane;
-import javax.swing.UIManager;
-import javax.swing.UnsupportedLookAndFeelException;
-
-/**
- * Some Java Swing utilities.
- *
- * @author niki
- */
-public class UIUtils {
- /**
- * Set a fake "native look & feel" for the application if possible
- * (check for the one currently in use, then try GTK).
- * <p>
- * <b>Must</b> be called prior to any GUI work.
- */
- static public void setLookAndFeel() {
- // native look & feel
- try {
- String noLF = "javax.swing.plaf.metal.MetalLookAndFeel";
- String lf = UIManager.getSystemLookAndFeelClassName();
- if (lf.equals(noLF))
- lf = "com.sun.java.swing.plaf.gtk.GTKLookAndFeel";
- UIManager.setLookAndFeel(lf);
- } catch (InstantiationException e) {
- } catch (ClassNotFoundException e) {
- } catch (UnsupportedLookAndFeelException e) {
- } catch (IllegalAccessException e) {
- }
- }
-
- /**
- * Draw a 3D-looking ellipse at the given location, if the given
- * {@link Graphics} object is compatible (with {@link Graphics2D}); draw a
- * simple ellipse if not.
- *
- * @param g
- * the {@link Graphics} to draw on
- * @param color
- * the base colour
- * @param x
- * the X coordinate
- * @param y
- * the Y coordinate
- * @param width
- * the width radius
- * @param height
- * the height radius
- */
- static public void drawEllipse3D(Graphics g, Color color, int x, int y,
- int width, int height) {
- drawEllipse3D(g, color, x, y, width, height, true);
- }
-
- /**
- * Draw a 3D-looking ellipse at the given location, if the given
- * {@link Graphics} object is compatible (with {@link Graphics2D}); draw a
- * simple ellipse if not.
- *
- * @param g
- * the {@link Graphics} to draw on
- * @param color
- * the base colour
- * @param x
- * the X coordinate
- * @param y
- * the Y coordinate
- * @param width
- * the width radius
- * @param height
- * the height radius
- * @param fill
- * fill the content of the ellipse
- */
- static public void drawEllipse3D(Graphics g, Color color, int x, int y,
- int width, int height, boolean fill) {
- if (g instanceof Graphics2D) {
- Graphics2D g2 = (Graphics2D) g;
- g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
- RenderingHints.VALUE_ANTIALIAS_ON);
-
- // Retains the previous state
- Paint oldPaint = g2.getPaint();
-
- // Base shape
- g2.setColor(color);
- if (fill) {
- g2.fillOval(x, y, width, height);
- } else {
- g2.drawOval(x, y, width, height);
- }
-
- // Compute dark/bright colours
- Paint p = null;
- Color dark = color.darker().darker();
- Color bright = color.brighter().brighter();
- Color darkEnd = new Color(dark.getRed(), dark.getGreen(),
- dark.getBlue(), 0);
- Color darkPartial = new Color(dark.getRed(), dark.getGreen(),
- dark.getBlue(), 64);
- Color brightEnd = new Color(bright.getRed(), bright.getGreen(),
- bright.getBlue(), 0);
-
- // Adds shadows at the bottom left
- p = new GradientPaint(0, height, dark, width, 0, darkEnd);
- g2.setPaint(p);
- if (fill) {
- g2.fillOval(x, y, width, height);
- } else {
- g2.drawOval(x, y, width, height);
- }
- // Adds highlights at the top right
- p = new GradientPaint(width, 0, bright, 0, height, brightEnd);
- g2.setPaint(p);
- if (fill) {
- g2.fillOval(x, y, width, height);
- } else {
- g2.drawOval(x, y, width, height);
- }
-
- // Darken the edges
- p = new RadialGradientPaint(x + width / 2f, y + height / 2f,
- Math.min(width / 2f, height / 2f), new float[] { 0f, 1f },
- new Color[] { darkEnd, darkPartial },
- RadialGradientPaint.CycleMethod.NO_CYCLE);
- g2.setPaint(p);
- if (fill) {
- g2.fillOval(x, y, width, height);
- } else {
- g2.drawOval(x, y, width, height);
- }
-
- // Adds inner highlight at the top right
- p = new RadialGradientPaint(x + 3f * width / 4f, y + height / 4f,
- Math.min(width / 4f, height / 4f),
- new float[] { 0.0f, 0.8f },
- new Color[] { bright, brightEnd },
- RadialGradientPaint.CycleMethod.NO_CYCLE);
- g2.setPaint(p);
- if (fill) {
- g2.fillOval(x * 2, y, width, height);
- } else {
- g2.drawOval(x * 2, y, width, height);
- }
-
- // Reset original paint
- g2.setPaint(oldPaint);
- } else {
- g.setColor(color);
- if (fill) {
- g.fillOval(x, y, width, height);
- } else {
- g.drawOval(x, y, width, height);
- }
- }
- }
-
- /**
- * Add a {@link JScrollPane} around the given panel and use a sensible (for
- * me) increment for the mouse wheel.
- *
- * @param pane
- * the panel to wrap in a {@link JScrollPane}
- * @param allowHorizontal
- * allow horizontal scrolling (not always desired)
- *
- * @return the {@link JScrollPane}
- */
- static public JScrollPane scroll(JComponent pane, boolean allowHorizontal) {
- return scroll(pane, allowHorizontal, true);
- }
-
- /**
- * Add a {@link JScrollPane} around the given panel and use a sensible (for
- * me) increment for the mouse wheel.
- *
- * @param pane
- * the panel to wrap in a {@link JScrollPane}
- * @param allowHorizontal
- * allow horizontal scrolling (not always desired)
- * @param allowVertical
- * allow vertical scrolling (usually yes, but sometimes you only
- * want horizontal)
- *
- * @return the {@link JScrollPane}
- */
- static public JScrollPane scroll(JComponent pane, boolean allowHorizontal,
- boolean allowVertical) {
- JScrollPane scroll = new JScrollPane(pane);
-
- scroll.getVerticalScrollBar().setUnitIncrement(16);
- scroll.getHorizontalScrollBar().setUnitIncrement(16);
-
- if (!allowHorizontal) {
- scroll.setHorizontalScrollBarPolicy(
- JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
- }
- if (!allowVertical) {
- scroll.setVerticalScrollBarPolicy(
- JScrollPane.VERTICAL_SCROLLBAR_NEVER);
- }
-
- return scroll;
- }
-}