7124513: [macosx] Support NSTexturedBackgroundWindowMask/different titlebar...

7124513: [macosx] Support NSTexturedBackgroundWindowMask/different titlebar styles to create unified toolbar
Reviewed-by: anthony, art

src/macosx/classes/com/apple/laf/AquaPanelUI.java

@@ -32,10 +32,20 @@ import javax.swing.plaf.basic.BasicPanelUI;
 import com.apple.laf.AquaUtils.RecyclableSingleton;
 import com.apple.laf.AquaUtils.RecyclableSingletonFromDefaultConstructor;
 
+import java.awt.Graphics;
+
 public class AquaPanelUI extends BasicPanelUI {
     static RecyclableSingleton<AquaPanelUI> instance = new RecyclableSingletonFromDefaultConstructor<AquaPanelUI>(AquaPanelUI.class);
 
     public static ComponentUI createUI(final JComponent c) {
         return instance.get();
     }
+
+    @Override
+    public final void update(final Graphics g, final JComponent c) {
+        if (c.isOpaque()) {
+            AquaUtils.fillRect(g, c);
+        }
+        paint(g, c);
+    }
 }

src/macosx/classes/com/apple/laf/AquaRootPaneUI.java

@@ -319,4 +319,12 @@ public class AquaRootPaneUI extends BasicRootPaneUI implements AncestorListener,
             updateComponentTreeUIActivation(element, active);
         }
     }
+
+    @Override
+    public final void update(final Graphics g, final JComponent c) {
+        if (c.isOpaque()) {
+            AquaUtils.fillRect(g, c);
+        }
+        paint(g, c);
+    }
 }

src/macosx/classes/com/apple/laf/AquaToolBarUI.java

@@ -73,9 +73,7 @@ public class AquaToolBarUI extends BasicToolBarUI implements SwingConstants {
             g.translate(x, y);
 
             if (c.isOpaque()) {
-                final Color background = c.getBackground();
-                g.setColor(background);
-                g.fillRect(0, 0, w - 1, h - 1);
+                AquaUtils.fillRect(g, c, c.getBackground(), 0, 0, w - 1, h - 1);
             }
 
             final Color oldColor = g.getColor();
@@ -137,4 +135,12 @@ public class AquaToolBarUI extends BasicToolBarUI implements SwingConstants {
             return true;
         }
     }
+
+    @Override
+    public final void update(final Graphics g, final JComponent c) {
+        if (c.isOpaque()) {
+            AquaUtils.fillRect(g, c);
+        }
+        paint(g, c);
+    }
 }

src/macosx/classes/com/apple/laf/AquaUtils.java

@@ -28,18 +28,19 @@ package com.apple.laf;
 import java.awt.*;
 import java.awt.image.*;
 import java.lang.ref.SoftReference;
-import java.lang.ref.WeakReference;
 import java.lang.reflect.Method;
 import java.security.PrivilegedAction;
 import java.util.*;
 
 import javax.swing.*;
 import javax.swing.border.Border;
+import javax.swing.plaf.UIResource;
 
 import sun.awt.AppContext;
 
 import sun.lwawt.macosx.CImage;
 import sun.lwawt.macosx.CImage.Creator;
+import sun.lwawt.macosx.CPlatformWindow;
 import sun.swing.SwingUtilities2;
 
 import com.apple.laf.AquaImageFactory.SlicedImageControl;
@@ -389,4 +390,51 @@ public class AquaUtils {
             return false;
         }
     }
+
+    protected static boolean isWindowTextured(final Component c) {
+        if (!(c instanceof JComponent)) {
+            return false;
+        }
+        final JRootPane pane = ((JComponent) c).getRootPane();
+        if (pane == null) {
+            return false;
+        }
+        Object prop = pane.getClientProperty(
+                CPlatformWindow.WINDOW_BRUSH_METAL_LOOK);
+        if (prop != null) {
+            return Boolean.parseBoolean(prop.toString());
+        }
+        prop = pane.getClientProperty(CPlatformWindow.WINDOW_STYLE);
+        return prop != null && "textured".equals(prop);
+    }
+
+    private static Color resetAlpha(final Color color) {
+        return new Color(color.getRed(), color.getGreen(), color.getBlue(), 0);
+    }
+
+    protected static void fillRect(final Graphics g, final Component c) {
+        fillRect(g, c, c.getBackground(), 0, 0, c.getWidth(), c.getHeight());
+    }
+
+    protected static void fillRect(final Graphics g, final Component c,
+                                   final Color color, final int x, final int y,
+                                   final int w, final int h) {
+        if (!(g instanceof Graphics2D)) {
+            return;
+        }
+        final Graphics2D cg = (Graphics2D) g.create();
+        try {
+            if (color instanceof UIResource && isWindowTextured(c)
+                    && color.equals(SystemColor.window)) {
+                cg.setComposite(AlphaComposite.Src);
+                cg.setColor(resetAlpha(color));
+            } else {
+                cg.setColor(color);
+            }
+            cg.fillRect(x, y, w, h);
+        } finally {
+            cg.dispose();
+        }
+    }
 }
+

src/macosx/classes/sun/lwawt/LWWindowPeer.java

@@ -112,6 +112,8 @@ public class LWWindowPeer
 
     private static final Color nonOpaqueBackground = new Color(0, 0, 0, 0);
 
+    private volatile boolean textured;
+
     /**
      * Current modal blocker or null.
      *
@@ -442,9 +444,23 @@ public class LWWindowPeer
     public void updateWindow() {
     }
 
+    public final boolean isTextured() {
+        return textured;
+    }
+
+    public final void setTextured(final boolean isTextured) {
+        textured = isTextured;
+    }
+
     public final boolean isTranslucent() {
         synchronized (getStateLock()) {
-            return !isOpaque || isShaped();
+            /*
+             * Textured window is a special case of translucent window.
+             * The difference is only in nswindow background. So when we set
+             * texture property our peer became fully translucent. It doesn't
+             * fill background, create non opaque backbuffers and layer etc.
+             */
+            return !isOpaque || isShaped() || isTextured();
         }
     }
 
@@ -613,11 +629,13 @@ public class LWWindowPeer
                     g.setColor(nonOpaqueBackground);
                     g.fillRect(0, 0, w, h);
                 }
-                if (g instanceof SunGraphics2D) {
-                    SG2DConstraint((SunGraphics2D) g, getRegion());
+                if (!isTextured()) {
+                    if (g instanceof SunGraphics2D) {
+                        SG2DConstraint((SunGraphics2D) g, getRegion());
+                    }
+                    g.setColor(getBackground());
+                    g.fillRect(0, 0, w, h);
                 }
-                g.setColor(getBackground());
-                g.fillRect(0, 0, w, h);
             } finally {
                 g.dispose();
             }
@@ -982,8 +1000,10 @@ public class LWWindowPeer
                     if (g instanceof SunGraphics2D) {
                         SG2DConstraint((SunGraphics2D) g, getRegion());
                     }
-                    g.setColor(getBackground());
-                    g.fillRect(0, 0, r.width, r.height);
+                    if (!isTextured()) {
+                        g.setColor(getBackground());
+                        g.fillRect(0, 0, r.width, r.height);
+                    }
                     if (oldBB != null) {
                         // Draw the old back buffer to the new one
                         g.drawImage(oldBB, 0, 0, null);

src/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java

@@ -298,7 +298,7 @@ public class CPlatformWindow extends CFRetainedResource implements PlatformWindo
 
         // If the target is a dialog, popup or tooltip we want it to ignore the brushed metal look.
         if (isPopup) {
-            styleBits = SET(styleBits, TEXTURED, true);
+            styleBits = SET(styleBits, TEXTURED, false);
             // Popups in applets don't activate applet's process
             styleBits = SET(styleBits, NONACTIVATING, true);
         }
@@ -372,6 +372,8 @@ public class CPlatformWindow extends CFRetainedResource implements PlatformWindo
             }
         }
 
+        peer.setTextured(IS(TEXTURED, styleBits));
+
         return styleBits;
     }
 
@@ -733,7 +735,7 @@ public class CPlatformWindow extends CFRetainedResource implements PlatformWindo
     @Override
     public void setOpaque(boolean isOpaque) {
         CWrapper.NSWindow.setOpaque(getNSWindowPtr(), isOpaque);
-        if (!isOpaque) {
+        if (!isOpaque && !peer.isTextured()) {
             long clearColor = CWrapper.NSColor.clearColor();
             CWrapper.NSWindow.setBackgroundColor(getNSWindowPtr(), clearColor);
         }

src/share/classes/javax/swing/JViewport.java

@@ -1586,10 +1586,18 @@ public class JViewport extends JComponent implements Accessible
         int bdx = blitToX - blitFromX;
         int bdy = blitToY - blitFromY;
 
+        Composite oldComposite = null;
         // Shift the scrolled region
+        if (g instanceof Graphics2D) {
+            Graphics2D g2d = (Graphics2D) g;
+            oldComposite = g2d.getComposite();
+            g2d.setComposite(AlphaComposite.Src);
+        }
         rm.copyArea(this, g, blitFromX, blitFromY, blitW, blitH, bdx, bdy,
                     false);
-
+        if (oldComposite != null) {
+            ((Graphics2D) g).setComposite(oldComposite);
+        }
         // Paint the newly exposed region.
         int x = view.getX();
         int y = view.getY();