Update bevel.c

Black Bevels are now allowed with a new slider

Author: LinuxBeaver

compile_bevel_here/bevel.c

@@ -58,7 +58,7 @@ property_int (bevel2, _("Depth"), 40)
     value_range (1, 100)
 
 
-property_double (th, _("Threshold of the Bevel's Transparency'"), 0.100)
+property_double (th, _("Threshold of the Bevel's transparency"), 0.100)
   value_range (0.0, 1.0)
   ui_range (0.0, 0.5)
 
@@ -69,6 +69,13 @@ property_double (azimuth, _("Rotate Lighting"), 40.0)
     ui_meta ("direction", "ccw")
 
 
+property_double (slideupblack, _("Slide up if Bevel is very dark or black. "), 0.00)
+    description (_("GEGL Bevel works on black Bevels when using blend modes like Grain Merge and Hardlight. All you have to do is select those blend modes for black text and then move this slider up."))
+  value_range   (0.00, 0.999)
+  ui_steps      (0.01, 0.50)
+
+
+
 #else
 
 #define GEGL_OP_META
@@ -85,6 +92,10 @@ typedef struct
   GeglNode *boxblur;
   GeglNode *emb;
   GeglNode *th;
+  GeglNode *whitecolor;
+  GeglNode *normallayer;
+  GeglNode *slideupblack;
+  GeglNode *fix;
   GeglNode *output;
 } State; 
 
@@ -93,7 +104,8 @@ static void attach (GeglOperation *operation)
 {
   GeglNode *gegl = operation->node;
   GeglProperties *o = GEGL_PROPERTIES (operation);
-  GeglNode *input, *output, *boxblur, *blur, *emb, *th;
+  GeglNode *input, *output, *boxblur, *blur, *emb, *th, *fix, *whitecolor, *normallayer, *slideupblack;
+  GeglColor *white_color = gegl_color_new ("#ffffff");
 
   input    = gegl_node_get_input_proxy (gegl, "input");
   output   = gegl_node_get_output_proxy (gegl, "output");
@@ -118,15 +130,35 @@ static void attach (GeglOperation *operation)
                                   NULL);
 
 
+  whitecolor    = gegl_node_new_child (gegl,
+                                  "operation", "gegl:color-overlay",
+                                   "value", white_color, NULL);
+
+
+normallayer = gegl_node_new_child (gegl,
+                                    "operation", "gimp:layer-mode", "layer-mode", 28,  "composite-mode", 2, NULL);
+
+
+ slideupblack   = gegl_node_new_child (gegl,
+                                  "operation", "gegl:opacity",
+                                  NULL);
+
+ fix   = gegl_node_new_child (gegl,
+                                  "operation", "gegl:crop",
+                                  NULL);
+
+
+
+  gegl_node_link_many (input, whitecolor, blur, boxblur, emb, th, fix, output, NULL);
 
-  gegl_node_link_many (input, blur, boxblur, emb, th, output, NULL);
   gegl_operation_meta_redirect (operation, "radius1", blur, "std-dev-x");
   gegl_operation_meta_redirect (operation, "radius1", blur, "std-dev-y");
   gegl_operation_meta_redirect (operation, "bevel1", emb, "elevation");
   gegl_operation_meta_redirect (operation, "bevel2", emb, "depth");
   gegl_operation_meta_redirect (operation, "azimuth", emb, "azimuth");
   gegl_operation_meta_redirect (operation, "radius2", boxblur, "radius");
   gegl_operation_meta_redirect (operation, "th", th, "value");
+  gegl_operation_meta_redirect (operation, "slideupblack", slideupblack, "value");
 
 
 
@@ -140,6 +172,10 @@ static void attach (GeglOperation *operation)
   state->boxblur = boxblur;
   state->emb = emb;
   state->th = th;
+  state->whitecolor = whitecolor;
+  state->normallayer = normallayer;
+  state->slideupblack = slideupblack;
+  state->fix = fix;
   state->output = output;
   o->user_data = state;
 }
@@ -154,11 +190,15 @@ update_graph (GeglOperation *operation)
   if (o->effectsswitchbevel)
   if (o->embossmode)
   {
-    gegl_node_link_many (state->blur, state->boxblur,  state->emb, state->output, NULL);
+    gegl_node_link_many (state->input, state->normallayer, state->blur, state->boxblur,  state->emb, state->fix, state->output, NULL);
+    gegl_node_link_many (state->whitecolor, state->slideupblack,  NULL);
+      gegl_node_connect_from (state->normallayer, "aux", state->slideupblack, "output");
   }
 else
   {
-    gegl_node_link_many (state->blur, state->boxblur,  state->emb, state->th, state->output, NULL);
+    gegl_node_link_many (state->input, state->normallayer, state->blur, state->boxblur,  state->emb, state->th, state->fix, state->output, NULL);
+    gegl_node_link_many (state->whitecolor, state->slideupblack,  NULL);
+      gegl_node_connect_from (state->normallayer, "aux", state->slideupblack, "output");
   }
 else
   {