New CSS blending modes (outside of filters).

Define WITH_CSSBLEND to try out.
Note: The modes are defined in CSS Compositing and Blending Level 1.
To do: GUI. Isolate SVG drawing from Inkscape background (i.e. page border).

(bzr r12845)

1 files changed, 29 insertions, 0 deletions

diff --git a/src/style.h b/src/style.h
index bc4df96e2..014d2b72f 100644
--- a/src/style.h
+++ b/src/style.h
@@ -364,6 +364,11 @@ struct SPStyle {
     /** opacity */
     SPIScale24 opacity;
 
+    /** mix-blend-mode:  CSS Compositing and Blending Level 1 */
+    SPIEnum isolation;
+    // Could be shared with Filter blending mode
+    SPIEnum blend_mode;
+
     /** color */
     SPIPaint color;
     /** color-interpolation */
@@ -606,6 +611,30 @@ enum SPCSSDisplay {
     SP_CSS_DISPLAY_TABLE_CAPTION
 };
 
+enum SPIsolation {
+    SP_CSS_ISOLATION_AUTO,
+    SP_CSS_ISOLATION_ISOLATE
+};
+
+enum SPBlendMode {
+    SP_CSS_BLEND_NORMAL,
+    SP_CSS_BLEND_MULTIPLY,
+    SP_CSS_BLEND_SCREEN,
+    SP_CSS_BLEND_DARKEN,
+    SP_CSS_BLEND_LIGHTEN,
+    SP_CSS_BLEND_OVERLAY,
+    SP_CSS_BLEND_COLORDODGE,
+    SP_CSS_BLEND_COLORBURN,
+    SP_CSS_BLEND_HARDLIGHT,
+    SP_CSS_BLEND_SOFTLIGHT,
+    SP_CSS_BLEND_DIFFERENCE,
+    SP_CSS_BLEND_EXCLUSION,
+    SP_CSS_BLEND_HUE,
+    SP_CSS_BLEND_SATURATION,
+    SP_CSS_BLEND_COLOR,
+    SP_CSS_BLEND_LUMINOSITY
+};
+
 enum SPEnableBackground {
     SP_CSS_BACKGROUND_ACCUMULATE,
     SP_CSS_BACKGROUND_NEW