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User Interface: Make the background inside a node group brighter 

The breadcrumbs alone may not be enough to indicate that a user is
inside a nodegroup. The original dark green color was a bit overwhelming
but having a different background helps.

This is a follow up to 919e513fa8.
This commit is contained in:
Dalai Felinto 2021-10-08 11:43:52 +02:00
parent 601a6a7dc6
commit ebe2374528
Notes: blender-bot 2023-02-14 08:10:06 +01:00 
Referenced by commit 38c4888f09, Fix crash in the node editor in cases where nodetree was empty
Referenced by issue #94153, Node editor group background color can not be specified in 3.0
Referenced by issue #93654, [Themes] No option for NodeGroup BG color
1 changed files with 23 additions and 1 deletions
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24
source/blender/editors/space_node/node_draw.cc
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@ -2176,6 +2176,28 @@ static void draw_nodetree(const bContext *C,
node_draw_nodetree(C, region, snode, ntree, parent_key);
}
/**
* Make the background slightly brighter to indicate that users are inside a nodegroup.
**/
static void draw_background_color(const SpaceNode *snode)
{
const int max_depth = 2;
const float bright_factor = 0.25f;
float color[3];
UI_GetThemeColor3fv(TH_BACK, color);
int depth = 0;
bNodeTreePath *path = (bNodeTreePath *)snode->treepath.last;
while (path->prev && depth < max_depth) {
path = path->prev;
depth++;
}
mul_v3_fl(color, 1.0f + bright_factor * depth);
GPU_clear_color(color[0], color[1], color[2], 1.0);
}
void node_draw_space(const bContext *C, ARegion *region)
{
wmWindow *win = CTX_wm_window(C);
@ -2189,7 +2211,7 @@ void node_draw_space(const bContext *C, ARegion *region)
GPU_framebuffer_bind_no_srgb(framebuffer_overlay);
UI_view2d_view_ortho(v2d);
UI_ThemeClearColor(TH_BACK);
draw_background_color(snode);
GPU_depth_test(GPU_DEPTH_NONE);
GPU_scissor_test(true);