IDEA-149210 Rework IDE notifications

platform/platform-impl/src/com/intellij/ui/NotificationBalloonShadowBorderProvider.java

@@ -17,7 +17,9 @@ package com.intellij.ui;
 
 import com.intellij.icons.AllIcons.Ide.Notification.Shadow;
 import com.intellij.openapi.ui.popup.Balloon;
+import com.intellij.openapi.util.IconLoader;
 import com.intellij.util.ui.JBInsets;
+import com.intellij.util.ui.UIUtil;
 import org.jetbrains.annotations.NotNull;
 
 import javax.swing.*;
@@ -71,32 +73,11 @@ public class NotificationBalloonShadowBorderProvider implements BalloonImpl.Shad
     int rightWidth = Shadow.Right.getIconWidth();
     int rightHeight = Shadow.Right.getIconHeight();
 
+    drawLine(component, g, Shadow.Top, width, topLeftWidth, topRightWidth, topWidth, 0, true);
+    drawLine(component, g, Shadow.Bottom, width, bottomLeftWidth, bottomRightWidth, bottomWidth, height - bottomHeight, true);
 
-    Rectangle clipBounds = g.getClipBounds();
-
-    g.setClip(topLeftWidth, 0, width - topLeftWidth - topRightWidth, Shadow.Top.getIconHeight());
-    for (int x = topLeftWidth; x < width; x += topWidth) {
-      Shadow.Top.paintIcon(component, g, x, 0);
-    }
-    g.setClip(bottomLeftWidth, height - bottomHeight, width - bottomLeftWidth - bottomRightWidth, bottomHeight);
-    for (int x = bottomLeftWidth; x < width; x += bottomWidth) {
-      Shadow.Bottom.paintIcon(component, g, x, height - bottomHeight);
-    }
-    g.setClip(0, topLeftHeight, Shadow.Left.getIconWidth(), height - topLeftHeight - bottomLeftHeight);
-    for (int y = topLeftHeight; y < height; y += leftHeight) {
-      Shadow.Left.paintIcon(component, g, 0, y);
-    }
-    g.setClip(width - rightWidth, topRightHeight, rightWidth, height - topRightHeight - bottomRightHeight);
-    for (int y = topRightHeight; y < height; y += rightHeight) {
-      Shadow.Right.paintIcon(component, g, width - rightWidth, y);
-    }
-
-    if (clipBounds == null) {
-      g.setClip(null);
-    }
-    else {
-      g.setClip(clipBounds.x, clipBounds.y, clipBounds.width, clipBounds.height);
-    }
+    drawLine(component, g, Shadow.Left, height, topLeftHeight, bottomLeftHeight, leftHeight, 0, false);
+    drawLine(component, g, Shadow.Right, height, topRightHeight, bottomRightHeight, rightHeight, width - rightWidth, false);
 
     Shadow.Top_left.paintIcon(component, g, 0, 0);
     Shadow.Top_right.paintIcon(component, g, width - topRightWidth, 0);
@@ -104,6 +85,42 @@ public class NotificationBalloonShadowBorderProvider implements BalloonImpl.Shad
     Shadow.Bottom_left.paintIcon(component, g, 0, height - bottomLeftHeight);
   }
 
+  private static void drawLine(@NotNull JComponent component,
+                               @NotNull Graphics g,
+                               @NotNull Icon icon,
+                               int fullLength,
+                               int start,
+                               int end,
+                               int step,
+                               int start2,
+                               boolean horizontal) {
+    int length = fullLength - start - end;
+    int count = length / step;
+    int calcLength = step * count;
+    int lastValue = start + calcLength;
+
+    if (horizontal) {
+      for (int i = start; i < lastValue; i += step) {
+        icon.paintIcon(component, g, i, start2);
+      }
+    }
+    else {
+      for (int i = start; i < lastValue; i += step) {
+        icon.paintIcon(component, g, start2, i);
+      }
+    }
+
+    if (calcLength < length) {
+      ImageIcon imageIcon = (ImageIcon)IconLoader.getIconSnapshot(icon);
+      if (horizontal) {
+        UIUtil.drawImage(g, imageIcon.getImage(), lastValue, start2, length - calcLength, imageIcon.getIconHeight(), component);
+      }
+      else {
+        UIUtil.drawImage(g, imageIcon.getImage(), start2, lastValue, imageIcon.getIconWidth(), length - calcLength, component);
+      }
+    }
+  }
+
   @Override
   public void paintBorder(@NotNull Rectangle bounds, @NotNull Graphics2D g) {
     g.setColor(myFillColor);

platform/util/src/com/intellij/util/ui/UIUtil.java

@@ -1821,6 +1821,10 @@ public class UIUtil {
   }
 
   public static void drawImage(Graphics g, Image image, int x, int y, ImageObserver observer) {
+    drawImage(g, image, x, y, -1, -1, observer);
+  }
+
+  public static void drawImage(Graphics g, Image image, int x, int y, int width, int height, ImageObserver observer) {
     if (image instanceof JBHiDPIScaledImage) {
       final Graphics2D newG = (Graphics2D)g.create(x, y, image.getWidth(observer), image.getHeight(observer));
       newG.scale(0.5, 0.5);
@@ -1828,12 +1832,21 @@ public class UIUtil {
       if (img == null) {
         img = image;
       }
-      newG.drawImage(img, 0, 0, observer);
+      if (width == -1 && height == -1) {
+        newG.drawImage(img, 0, 0, observer);
+      }
+      else {
+        newG.drawImage(img, 0, 0, width * 2, height * 2, 0, 0, width * 2, height * 2, observer);
+      }
       //newG.scale(1, 1);
       newG.dispose();
-    } else {
+    }
+    else if (width == -1 && height == -1) {
       g.drawImage(image, x, y, observer);
     }
+    else {
+      g.drawImage(image, x, y, x + width, y + height, 0, 0, width, height, observer);
+    }
   }
 
   public static void drawImage(Graphics g, BufferedImage image, BufferedImageOp op, int x, int y) {