Added color picker into x11 opengl demos

demo/x11_opengl2/main.c

@@ -266,6 +266,21 @@ int main(int argc, char **argv)
             if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
             nk_layout_row_dynamic(ctx, 25, 1);
             nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
+
+            {struct nk_panel combo;
+            nk_layout_row_dynamic(ctx, 20, 1);
+            nk_label(ctx, "background:", NK_TEXT_LEFT);
+            nk_layout_row_dynamic(ctx, 25, 1);
+            if (nk_combo_begin_color(ctx, &combo, background, 400)) {
+                nk_layout_row_dynamic(ctx, 120, 1);
+                background = nk_color_picker(ctx, background, NK_RGBA);
+                nk_layout_row_dynamic(ctx, 25, 1);
+                background.r = (nk_byte)nk_propertyi(ctx, "#R:", 0, background.r, 255, 1,1);
+                background.g = (nk_byte)nk_propertyi(ctx, "#G:", 0, background.g, 255, 1,1);
+                background.b = (nk_byte)nk_propertyi(ctx, "#B:", 0, background.b, 255, 1,1);
+                background.a = (nk_byte)nk_propertyi(ctx, "#A:", 0, background.a, 255, 1,1);
+                nk_combo_end(ctx);
+            }}
         }
         nk_end(ctx);}
         if (nk_window_is_closed(ctx, "Demo")) break;

demo/x11_opengl3/main.c

@@ -264,6 +264,21 @@ int main(int argc, char **argv)
             if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
             nk_layout_row_dynamic(ctx, 25, 1);
             nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
+
+            {struct nk_panel combo;
+            nk_layout_row_dynamic(ctx, 20, 1);
+            nk_label(ctx, "background:", NK_TEXT_LEFT);
+            nk_layout_row_dynamic(ctx, 25, 1);
+            if (nk_combo_begin_color(ctx, &combo, background, 400)) {
+                nk_layout_row_dynamic(ctx, 120, 1);
+                background = nk_color_picker(ctx, background, NK_RGBA);
+                nk_layout_row_dynamic(ctx, 25, 1);
+                background.r = (nk_byte)nk_propertyi(ctx, "#R:", 0, background.r, 255, 1,1);
+                background.g = (nk_byte)nk_propertyi(ctx, "#G:", 0, background.g, 255, 1,1);
+                background.b = (nk_byte)nk_propertyi(ctx, "#B:", 0, background.b, 255, 1,1);
+                background.a = (nk_byte)nk_propertyi(ctx, "#A:", 0, background.a, 255, 1,1);
+                nk_combo_end(ctx);
+            }}
         }
         nk_end(ctx);}
         if (nk_window_is_closed(ctx, "Demo")) break;