[gimp/wip/passthrough: 17/26] app: add pass-through layer mode

[N/A <ell src gnome org>]

commit 3d1dcaf5947340af54da773687a94422ed001e94
Author: Ell <ell_se yahoo com>
Date:   Fri Apr 21 13:38:22 2017 -0400

    app: add pass-through layer mode
    
    Only add the enum-value/mode-info for now.  Pass-through mode
    appears above normal mode, in the default group, for layer groups
    only.

 app/core/gimpimage.c                               |    1 +
 app/operations/layer-modes/gimp-layer-modes.c      |   19 +++++++++++++++++++
 .../layer-modes/gimpoperationlayermode.c           |    1 +
 app/operations/operations-enums.c                  |    2 ++
 app/operations/operations-enums.h                  |    1 +
 libgimp/gimpenums.h                                |    3 ++-
 tools/pdbgen/enums.pl                              |    6 ++++--
 7 files changed, 30 insertions(+), 3 deletions(-)
---
diff --git a/app/core/gimpimage.c b/app/core/gimpimage.c
index 8531253..7739aa8 100644
--- a/app/core/gimpimage.c
+++ b/app/core/gimpimage.c
@@ -2466,6 +2466,7 @@ gimp_image_get_xcf_version (GimpImage    *image,
         case GIMP_LAYER_MODE_ERASE:
         case GIMP_LAYER_MODE_MERGE:
         case GIMP_LAYER_MODE_SPLIT:
+        case GIMP_LAYER_MODE_PASS_THROUGH:
           version = MAX (10, version);
           break;
 
diff --git a/app/operations/layer-modes/gimp-layer-modes.c b/app/operations/layer-modes/gimp-layer-modes.c
index 0ce18a2..12a47e3 100644
--- a/app/operations/layer-modes/gimp-layer-modes.c
+++ b/app/operations/layer-modes/gimp-layer-modes.c
@@ -850,6 +850,17 @@ static const GimpLayerModeInfo layer_mode_infos[] =
     .composite_mode       = GIMP_LAYER_COMPOSITE_SRC_ATOP
   },
 
+  { GIMP_LAYER_MODE_PASS_THROUGH,
+
+    .op_name              = "gimp:replace",
+    .function             = gimp_operation_replace_process,
+    .flags                = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
+                            GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
+    .context              = GIMP_LAYER_MODE_CONTEXT_GROUP,
+    .composite_mode       = GIMP_LAYER_COMPOSITE_SRC_OVER,
+    .composite_space      = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+
   { GIMP_LAYER_MODE_REPLACE,
 
     .op_name              = "gimp:replace",
@@ -875,6 +886,10 @@ static const GimpLayerModeInfo layer_mode_infos[] =
 
 static const GimpLayerMode layer_mode_group_default[] =
 {
+  GIMP_LAYER_MODE_PASS_THROUGH,
+
+  GIMP_LAYER_MODE_SEPARATOR,
+
   GIMP_LAYER_MODE_NORMAL,
   GIMP_LAYER_MODE_REPLACE,
   GIMP_LAYER_MODE_DISSOLVE,
@@ -1123,6 +1138,10 @@ static const GimpLayerMode layer_mode_groups[][2] =
     [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1
   },
 
+  { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_PASS_THROUGH,
+    [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1,
+  },
+
   { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_REPLACE,
     [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1
   },
diff --git a/app/operations/layer-modes/gimpoperationlayermode.c 
b/app/operations/layer-modes/gimpoperationlayermode.c
index c9d18b5..7706a76 100644
--- a/app/operations/layer-modes/gimpoperationlayermode.c
+++ b/app/operations/layer-modes/gimpoperationlayermode.c
@@ -2488,6 +2488,7 @@ gimp_layer_mode_get_blend_fun (GimpLayerMode mode)
     case GIMP_LAYER_MODE_ERASE:
     case GIMP_LAYER_MODE_MERGE:
     case GIMP_LAYER_MODE_SPLIT:
+    case GIMP_LAYER_MODE_PASS_THROUGH:
     case GIMP_LAYER_MODE_REPLACE:
     case GIMP_LAYER_MODE_ANTI_ERASE:
     case GIMP_LAYER_MODE_SEPARATOR: /* to stop GCC from complaining :P */
diff --git a/app/operations/operations-enums.c b/app/operations/operations-enums.c
index b60e2a6..ee0d488 100644
--- a/app/operations/operations-enums.c
+++ b/app/operations/operations-enums.c
@@ -142,6 +142,7 @@ gimp_layer_mode_get_type (void)
     { GIMP_LAYER_MODE_ERASE, "GIMP_LAYER_MODE_ERASE", "erase" },
     { GIMP_LAYER_MODE_MERGE, "GIMP_LAYER_MODE_MERGE", "merge" },
     { GIMP_LAYER_MODE_SPLIT, "GIMP_LAYER_MODE_SPLIT", "split" },
+    { GIMP_LAYER_MODE_PASS_THROUGH, "GIMP_LAYER_MODE_PASS_THROUGH", "pass-through" },
     { GIMP_LAYER_MODE_REPLACE, "GIMP_LAYER_MODE_REPLACE", "replace" },
     { GIMP_LAYER_MODE_ANTI_ERASE, "GIMP_LAYER_MODE_ANTI_ERASE", "anti-erase" },
     { 0, NULL, NULL }
@@ -210,6 +211,7 @@ gimp_layer_mode_get_type (void)
     { GIMP_LAYER_MODE_ERASE, NC_("layer-mode", "Erase"), NULL },
     { GIMP_LAYER_MODE_MERGE, NC_("layer-mode", "Merge"), NULL },
     { GIMP_LAYER_MODE_SPLIT, NC_("layer-mode", "Split"), NULL },
+    { GIMP_LAYER_MODE_PASS_THROUGH, NC_("layer-mode", "Pass through"), NULL },
     { GIMP_LAYER_MODE_REPLACE, NC_("layer-mode", "Replace"), NULL },
     { GIMP_LAYER_MODE_ANTI_ERASE, NC_("layer-mode", "Anti erase"), NULL },
     { 0, NULL, NULL }
diff --git a/app/operations/operations-enums.h b/app/operations/operations-enums.h
index 59f2860..c1cd056 100644
--- a/app/operations/operations-enums.h
+++ b/app/operations/operations-enums.h
@@ -122,6 +122,7 @@ typedef enum
   GIMP_LAYER_MODE_ERASE,                 /*< desc="Erase"                    >*/
   GIMP_LAYER_MODE_MERGE,                 /*< desc="Merge"                    >*/
   GIMP_LAYER_MODE_SPLIT,                 /*< desc="Split"                    >*/
+  GIMP_LAYER_MODE_PASS_THROUGH,          /*< desc="Pass through"             >*/
 
   /*  Internal modes, not available to the PDB, must be kept at the end  */
   GIMP_LAYER_MODE_REPLACE,               /*< pdb-skip, desc="Replace"        >*/
diff --git a/libgimp/gimpenums.h b/libgimp/gimpenums.h
index 4ccc4ad..ab09488 100644
--- a/libgimp/gimpenums.h
+++ b/libgimp/gimpenums.h
@@ -155,7 +155,8 @@ typedef enum
   GIMP_LAYER_MODE_COLOR_ERASE,
   GIMP_LAYER_MODE_ERASE,
   GIMP_LAYER_MODE_MERGE,
-  GIMP_LAYER_MODE_SPLIT
+  GIMP_LAYER_MODE_SPLIT,
+  GIMP_LAYER_MODE_PASS_THROUGH
 } GimpLayerMode;
 
 
diff --git a/tools/pdbgen/enums.pl b/tools/pdbgen/enums.pl
index 6273438..b828ca8 100644
--- a/tools/pdbgen/enums.pl
+++ b/tools/pdbgen/enums.pl
@@ -750,7 +750,8 @@ package Gimp::CodeGen::enums;
                          GIMP_LAYER_MODE_LUMA_LIGHTEN_ONLY
                          GIMP_LAYER_MODE_LUMINANCE
                          GIMP_LAYER_MODE_COLOR_ERASE GIMP_LAYER_MODE_ERASE
-                         GIMP_LAYER_MODE_MERGE GIMP_LAYER_MODE_SPLIT) ],
+                         GIMP_LAYER_MODE_MERGE GIMP_LAYER_MODE_SPLIT
+                         GIMP_LAYER_MODE_PASS_THROUGH) ],
          mapping => { GIMP_LAYER_MODE_NORMAL_LEGACY => '0',
                       GIMP_LAYER_MODE_DISSOLVE => '1',
                       GIMP_LAYER_MODE_BEHIND_LEGACY => '2',
@@ -811,7 +812,8 @@ package Gimp::CodeGen::enums;
                       GIMP_LAYER_MODE_COLOR_ERASE => '57',
                       GIMP_LAYER_MODE_ERASE => '58',
                       GIMP_LAYER_MODE_MERGE => '59',
-                      GIMP_LAYER_MODE_SPLIT => '60' }
+                      GIMP_LAYER_MODE_SPLIT => '60',
+                      GIMP_LAYER_MODE_PASS_THROUGH => '61' }
        },
     GimpConvertDitherType =>
        { contig => 1,