X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=ui%2FUIUtils.java;h=7d78d1e8c38669b118dab12828da99c351091b8c;hb=b9839223367364225470e6d8f67d8fe1a9f103ba;hp=91a1f61b4b1bb02f7646c8f9910fb6b0140feeb7;hpb=71c36f2dd234e238284b7f8a3b1a0a2ae944a53f;p=fanfix.git

diff --git a/ui/UIUtils.java b/ui/UIUtils.java
index 91a1f61..7d78d1e 100644
--- a/ui/UIUtils.java
+++ b/ui/UIUtils.java
@@ -8,6 +8,8 @@ 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;
 
@@ -18,26 +20,47 @@ import javax.swing.UnsupportedLookAndFeelException;
  */
 public class UIUtils {
 	/**
-	 * Set a fake "native look & feel" for the application if possible
+	 * 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.
+	 * 
+	 * @return TRUE if it succeeded
 	 */
-	static public void setLookAndFeel() {
+	static public boolean setLookAndFeel() {
 		// native look & feel
+		String noLF = "javax.swing.plaf.metal.MetalLookAndFeel";
+		String lf = UIManager.getSystemLookAndFeelClassName();
+		if (lf.equals(noLF))
+			lf = "com.sun.java.swing.plaf.gtk.GTKLookAndFeel";
+		
+		return setLookAndFeel(lf);
+	}
+
+	/**
+	 * Switch to the given Look &amp; 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.
+	 * 
+	 * @param laf
+	 *            the Look &amp; Feel to use
+	 * 
+	 * @return TRUE if it succeeded
+	 */
+	static public boolean setLookAndFeel(String laf) {
 		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);
+			UIManager.setLookAndFeel(laf);
+			return true;
 		} catch (InstantiationException e) {
 		} catch (ClassNotFoundException e) {
 		} catch (UnsupportedLookAndFeelException e) {
 		} catch (IllegalAccessException e) {
 		}
+
+		return false;
 	}
-	
+
 	/**
 	 * Draw a 3D-looking ellipse at the given location, if the given
 	 * {@link Graphics} object is compatible (with {@link Graphics2D}); draw a
@@ -56,7 +79,8 @@ public class UIUtils {
 	 * @param height
 	 *            the height radius
 	 */
-	static public void drawEllipse3D(Graphics g, Color color, int x, int y, int width, int height) {
+	static public void drawEllipse3D(Graphics g, Color color, int x, int y,
+			int width, int height) {
 		drawEllipse3D(g, color, x, y, width, height, true);
 	}
 
@@ -77,8 +101,8 @@ public class UIUtils {
 	 *            the width radius
 	 * @param height
 	 *            the height radius
-     * @param fill
-     * 			  fill the content of the ellipse
+	 * @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) {
@@ -97,7 +121,7 @@ public class UIUtils {
 			} else {
 				g2.drawOval(x, y, width, height);
 			}
-			
+
 			// Compute dark/bright colours
 			Paint p = null;
 			Color dark = color.darker().darker();
@@ -125,7 +149,7 @@ public class UIUtils {
 			} 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 },
@@ -162,4 +186,52 @@ public class UIUtils {
 			}
 		}
 	}
+
+	/**
+	 * 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;
+	}
 }