fix monochrome icons by the use of filters

Signed-off-by: mallowigi <[email protected]>
ChrisRM · Feb 12, 2018 · 2074c9a · 2074c9a
1 parent 226c634
commit 2074c9a
Showing 1 changed file with 28 additions and 4 deletions.
diff --git a/src/main/java/com/chrisrm/idea/utils/IconReplacer.java b/src/main/java/com/chrisrm/idea/utils/IconReplacer.java
@@ -29,11 +29,12 @@
 import com.chrisrm.idea.MTConfig;
 import com.chrisrm.idea.icons.tinted.TintedIcon;
 import com.chrisrm.idea.icons.tinted.TintedIconsService;
-import com.intellij.ui.ColorUtil;
-import com.intellij.util.IconUtil;
+import com.intellij.openapi.util.IconLoader;
 
 import javax.swing.*;
 import java.awt.*;
+import java.awt.image.ImageFilter;
+import java.awt.image.RGBImageFilter;
 import java.lang.reflect.Field;
 import java.lang.reflect.Modifier;
 import java.net.URL;
@@ -89,8 +90,9 @@ public static void replaceIcons(final Class iconsClass, final String iconsRootPa
   public static Icon chromatizeIcon(final Icon newIcon) {
     if (MTConfig.getInstance().isMonochromeIcons()) {
       final Color primaryColor = MTConfig.getInstance().getSelectedTheme().getTheme().getPrimaryColor();
-      final Icon mcIcon = IconUtil.colorize(newIcon, ColorUtil.brighter(primaryColor, 4), false);
-      return IconUtil.toSize(mcIcon, newIcon.getIconWidth(), newIcon.getIconHeight());
+      IconLoader.setFilter(new ColorizeFilter(primaryColor));
+    } else {
+      IconLoader.setFilter(new ImageFilter());
     }
     return newIcon;
   }
@@ -130,4 +132,26 @@ private static String patchUrlIfNeeded(final Object icon, final String iconsRoot
 
     return iconsRootPath;
   }
+
+  private static class ColorizeFilter extends RGBImageFilter {
+    private final Color primaryColor;
+
+    public ColorizeFilter(final Color primaryColor) {
+      this.primaryColor = primaryColor;
+    }
+
+    @Override
+    public int filterRGB(final int x, final int y, final int pARGB) {
+      final float[] myBase = Color.RGBtoHSB(primaryColor.getRed(), primaryColor.getGreen(), primaryColor.getBlue(), null);
+      // Get color components
+      final int r = pARGB >> 16 & 0xFF;
+      final int g = pARGB >> 8 & 0xFF;
+      final int b = pARGB & 0xFF;
+      final float[] hsb = new float[3];
+      Color.RGBtoHSB(r, g, b, hsb);
+      final int color = Color.HSBtoRGB(myBase[0], myBase[1] * hsb[1], myBase[2] * hsb[2]);
+      return (pARGB & 0xFF000000) | color & 0x00FFFFFF;
+
+    }
+  }
 }