Add red and green borders around channels to mark them as used for live and preview.

[nageru] / theme.lua

diff --git a/theme.lua b/theme.lua
index d7c281dd3faacb3b62312fe0273e8b8199dc1038..bbc086a4e86f478dde7c2b66eabe8f64e78a0aee 100644 (file)
--- a/theme.lua
+++ b/theme.lua
@@ -333,6 +333,41 @@ function channel_signal(channel)
        end
 end
 
+-- API ENTRY POINT
+-- Called every frame. Returns the color (if any) to paint around the given
+-- channel. Returns a CSS color (typically to mark live and preview signals);
+-- "transparent" is allowed.
+-- Will never be called for live (0) or preview (1).
+function channel_color(channel)
+       if channel_involved_in(channel, live_signal_num) then
+               return "#f00"
+       end
+       if channel_involved_in(channel, preview_signal_num) then
+               return "#0f0"
+       end
+       return "transparent"
+end
+
+function channel_involved_in(channel, signal_num)
+       if signal_num == INPUT0_SIGNAL_NUM then
+               return channel == 2
+       end
+       if signal_num == INPUT1_SIGNAL_NUM then
+               return channel == 3
+       end
+       if signal_num == SBS_SIGNAL_NUM then
+               return (channel == 2 or channel == 3)
+       end
+       if signal_num == STATIC_SIGNAL_NUM then
+               return (channel == 5)
+       end
+       if signal_num == FADE_SIGNAL_NUM then
+               return (channel_involved_in(channel, fade_src_signal) or
+                       channel_involved_in(channel, fade_dst_signal))
+       end
+       return false
+end
+
 -- API ENTRY POINT
 -- Returns if a given channel supports setting white balance (starting from 2).
 -- Called only once for each channel, at the start of the program.