[gtk+] gsk: Add gsk_color_node_new()

[Benjamin Otte <otte src gnome org>]

commit 6129daf29b2ca72187ca33cbe88311756545b494
Author: Benjamin Otte <otte redhat com>
Date:   Tue Dec 13 03:35:56 2016 +0100

    gsk: Add gsk_color_node_new()

 docs/reference/gsk/gsk4-sections.txt   |    1 +
 gsk/gskenums.h                         |    2 +
 gsk/gskrendernode.h                    |    4 ++
 gsk/gskrendernodeimpl.c                |   92 ++++++++++++++++++++++++++++++++
 gsk/gskrendernodeprivate.h             |    2 +
 gtk/inspector/gtktreemodelrendernode.c |    1 +
 6 files changed, 102 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gsk/gsk4-sections.txt b/docs/reference/gsk/gsk4-sections.txt
index 8e6239d..6126c4f 100644
--- a/docs/reference/gsk/gsk4-sections.txt
+++ b/docs/reference/gsk/gsk4-sections.txt
@@ -35,6 +35,7 @@ gsk_render_node_set_blend_mode
 GskScalingFilter
 gsk_render_node_set_scaling_filters
 gsk_render_node_set_name
+gsk_color_node_new
 gsk_texture_node_new
 gsk_cairo_node_new
 gsk_cairo_node_get_draw_context
diff --git a/gsk/gskenums.h b/gsk/gskenums.h
index 26ce47f..579e3d9 100644
--- a/gsk/gskenums.h
+++ b/gsk/gskenums.h
@@ -27,6 +27,7 @@
  * @GSK_NOT_A_RENDER_NODE: Error type. No node will ever have this type.
  * @GSK_CONTAINER_NODE: A node containing a stack of children
  * @GSK_CAIRO_NODE: A node drawing a #cairo_surface_t
+ * @GSK_COLOR_NODE: A node drawing a single color rectangle
  * @GSK_TEXTURE_NODE: A node drawing a #GskTexture
  * @GSK_TRANSFORM_NODE: A node that renders its child after applying a
  *     matrix transform
@@ -39,6 +40,7 @@ typedef enum {
   GSK_NOT_A_RENDER_NODE = 0,
   GSK_CONTAINER_NODE,
   GSK_CAIRO_NODE,
+  GSK_COLOR_NODE,
   GSK_TEXTURE_NODE,
   GSK_TRANSFORM_NODE
 } GskRenderNodeType;
diff --git a/gsk/gskrendernode.h b/gsk/gskrendernode.h
index c874cb5..2119dfb 100644
--- a/gsk/gskrendernode.h
+++ b/gsk/gskrendernode.h
@@ -45,6 +45,10 @@ GDK_AVAILABLE_IN_3_90
 GskRenderNodeType       gsk_render_node_get_node_type           (GskRenderNode *node);
 
 GDK_AVAILABLE_IN_3_90
+GskRenderNode *         gsk_color_node_new                      (const GdkRGBA            *rgba,
+                                                                 const graphene_rect_t    *bounds);
+
+GDK_AVAILABLE_IN_3_90
 GskRenderNode *         gsk_texture_node_new                    (GskTexture               *texture,
                                                                  const graphene_rect_t    *bounds);
 
diff --git a/gsk/gskrendernodeimpl.c b/gsk/gskrendernodeimpl.c
index b80c0f6..feb7f08 100644
--- a/gsk/gskrendernodeimpl.c
+++ b/gsk/gskrendernodeimpl.c
@@ -22,6 +22,98 @@
 #include "gskrendererprivate.h"
 #include "gsktextureprivate.h"
 
+/*** GSK_COLOR_NODE ***/
+
+typedef struct _GskColorNode GskColorNode;
+
+struct _GskColorNode
+{
+  GskRenderNode render_node;
+
+  GdkRGBA color;
+  graphene_rect_t bounds;
+};
+
+static void
+gsk_color_node_finalize (GskRenderNode *node)
+{
+}
+
+static void
+gsk_color_node_make_immutable (GskRenderNode *node)
+{
+}
+
+static void
+gsk_color_node_draw (GskRenderNode *node,
+                     cairo_t       *cr)
+{
+  GskColorNode *self = (GskColorNode *) node;
+
+  gdk_cairo_set_source_rgba (cr, &self->color);
+
+  cairo_rectangle (cr,
+                   self->bounds.origin.x, self->bounds.origin.y,
+                   self->bounds.size.width, self->bounds.size.height);
+  cairo_fill (cr);
+}
+
+static void
+gsk_color_node_get_bounds (GskRenderNode   *node,
+                           graphene_rect_t *bounds)
+{
+  GskColorNode *self = (GskColorNode *) node;
+
+  graphene_rect_init_from_rect (bounds, &self->bounds); 
+}
+
+static const GskRenderNodeClass GSK_COLOR_NODE_CLASS = {
+  GSK_COLOR_NODE,
+  sizeof (GskColorNode),
+  "GskColorNode",
+  gsk_color_node_finalize,
+  gsk_color_node_make_immutable,
+  gsk_color_node_draw,
+  gsk_color_node_get_bounds
+};
+
+const GdkRGBA *
+gsk_color_node_peek_color (GskRenderNode *node)
+{
+  GskColorNode *self = (GskColorNode *) node;
+
+  return &self->color;
+}
+
+/**
+ * gsk_color_node_new:
+ * @color: the #GskColor
+ * @bounds: the rectangle to render the color into
+ *
+ * Creates a #GskRenderNode that will render the given
+ * @color into the area given by @bounds.
+ *
+ * Returns: A new #GskRenderNode
+ *
+ * Since: 3.90
+ */
+GskRenderNode *
+gsk_color_node_new (const GdkRGBA         *rgba,
+                    const graphene_rect_t *bounds)
+{
+  GskColorNode *self;
+
+  g_return_val_if_fail (rgba != NULL, NULL);
+  g_return_val_if_fail (bounds != NULL, NULL);
+
+  self = (GskColorNode *) gsk_render_node_new (&GSK_COLOR_NODE_CLASS);
+
+  self->color = *rgba;
+  graphene_rect_init_from_rect (&self->bounds, bounds);
+
+  return &self->render_node;
+}
+
 /*** GSK_TEXTURE_NODE ***/
 
 typedef struct _GskTextureNode GskTextureNode;
diff --git a/gsk/gskrendernodeprivate.h b/gsk/gskrendernodeprivate.h
index 239e64d..c4e3c48 100644
--- a/gsk/gskrendernodeprivate.h
+++ b/gsk/gskrendernodeprivate.h
@@ -58,6 +58,8 @@ cairo_surface_t *gsk_cairo_node_get_surface (GskRenderNode *node);
 
 GskTexture *gsk_texture_node_get_texture (GskRenderNode *node);
 
+const GdkRGBA *gsk_color_node_peek_color (GskRenderNode *node);
+
 void gsk_transform_node_get_transform (GskRenderNode *node, graphene_matrix_t *transform);
 
 GskBlendMode gsk_render_node_get_blend_mode (GskRenderNode *node);
diff --git a/gtk/inspector/gtktreemodelrendernode.c b/gtk/inspector/gtktreemodelrendernode.c
index 8bfbfe2..617b4b7 100644
--- a/gtk/inspector/gtktreemodelrendernode.c
+++ b/gtk/inspector/gtktreemodelrendernode.c
@@ -522,6 +522,7 @@ append_node (GtkTreeModelRenderNode *nodemodel,
 
     case GSK_CAIRO_NODE:
     case GSK_TEXTURE_NODE:
+    case GSK_COLOR_NODE:
       /* no children */
       break;