Merge remote-tracking branch 'origin/master'

Author: ianharrigan

haxe/ui/backend/openfl/FilterConverter.hx

@@ -10,6 +10,8 @@ import haxe.ui.backend.openfl.filters.HueRotateFilter;
 import haxe.ui.backend.openfl.filters.ContrastFilter;
 import haxe.ui.backend.openfl.filters.SaturateFilter;
 import haxe.ui.backend.openfl.filters.TintFilter;
+import haxe.ui.backend.openfl.filters.InvertFilter;
+import haxe.ui.backend.openfl.filters.BrightnessFilter;
 
 class FilterConverter {
     public static function convertFilter(input:Filter):BitmapFilter {
@@ -49,6 +51,12 @@ class FilterConverter {
         } else if ((input is haxe.ui.filters.Saturate)) {
             var saturate:haxe.ui.filters.Saturate = cast(input, haxe.ui.filters.Saturate);
             output = new SaturateFilter(saturate.multiplier).filter;
+        } else if (input is haxe.ui.filters.Invert) {
+            var invert:haxe.ui.filters.Invert = cast(input, haxe.ui.filters.Invert);
+            output = new InvertFilter(invert.multiplier).filter;
+        } else if (input is haxe.ui.filters.Brightness) {
+            var brightness:haxe.ui.filters.Brightness = cast(input, haxe.ui.filters.Brightness);
+            output = new BrightnessFilter(brightness.multiplier).filter;
         }
 
         #end

haxe/ui/backend/openfl/filters/BrightnessFilter.hx

@@ -0,0 +1,21 @@
+package haxe.ui.backend.openfl.filters;
+
+import openfl.filters.ColorMatrixFilter;
+
+class BrightnessFilter { 
+    public var filter:ColorMatrixFilter;
+    
+    public function new(multiplier:Float = 1) {
+        // In html, 0 is a black image, 1 has no effect, over it's a multiplier
+        // So we adapt
+        if (multiplier <= 1) multiplier = (multiplier -1) * 255;
+        if (multiplier > 1) multiplier = (multiplier -1) * 110;
+        
+        filter = new ColorMatrixFilter([
+            1,0,0,0,multiplier,
+            0,1,0,0,multiplier,
+            0,0,1,0,multiplier,
+            0,0,0,1,0,
+            0,0,0,0,1]);
+    }
+}

haxe/ui/backend/openfl/filters/InvertFilter.hx

@@ -0,0 +1,23 @@
+package haxe.ui.backend.openfl.filters;
+
+import openfl.filters.ColorMatrixFilter;
+
+class InvertFilter { 
+    public var filter:ColorMatrixFilter;
+
+    /*<filter id="invert">
+  <feComponentTransfer>
+      <feFuncR type="table" tableValues="[amount] (1 - [amount])"/>
+      <feFuncG type="table" tableValues="[amount] (1 - [amount])"/>
+      <feFuncB type="table" tableValues="[amount] (1 - [amount])"/>
+  </feComponentTransfer>
+</filter>*/
+    
+    public function new(multiplier:Float = 1) {
+        filter = new ColorMatrixFilter([
+            -1*multiplier,  0,  0,  0, 255,
+            0,  -1*multiplier,  0,  0, 255,
+            0,   0, -1*multiplier,  0, 255,
+            0,   0,  0,  1,   0]);
+    }
+}