From 21238048a32446b5e2ca1d195a6a951b840942fa Mon Sep 17 00:00:00 2001
From: twinaphex <autechre1024@hotmail.com>
Date: Fri, 17 May 2013 23:26:11 +0200
Subject: [PATCH] (RGUI) Add opacity overlay setting

---
 frontend/menu/menu_common.h |  1 +
 frontend/menu/rgui.c        | 44 +++++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)

diff --git a/frontend/menu/menu_common.h b/frontend/menu/menu_common.h
index f02121290b..f703adc2e3 100644
--- a/frontend/menu/menu_common.h
+++ b/frontend/menu/menu_common.h
@@ -166,6 +166,7 @@ typedef enum
 
 #ifdef HAVE_OVERLAY
    RGUI_SETTINGS_OVERLAY_PRESET,
+   RGUI_SETTINGS_OVERLAY_OPACITY,
 #endif
    RGUI_SETTINGS_BIND_PLAYER,
    RGUI_SETTINGS_BIND_DEVICE,
diff --git a/frontend/menu/rgui.c b/frontend/menu/rgui.c
index c4d9a15cc5..f0441ebc8a 100644
--- a/frontend/menu/rgui.c
+++ b/frontend/menu/rgui.c
@@ -649,6 +649,15 @@ static void render_text(rgui_handle_t *rgui)
             case RGUI_SETTINGS_OPTIONS:
                strlcpy(type_str, "...", sizeof(type_str));
                break;
+#ifdef HAVE_OVERLAY
+            case RGUI_SETTINGS_OVERLAY_OPACITY:
+               {
+                  char number[10];
+                  snprintf(number, sizeof(number), "%.3f", g_settings.input.overlay_opacity);
+                  strlcpy(type_str, number, sizeof(type_str));
+               }
+               break;
+#endif
             case RGUI_SETTINGS_BIND_PLAYER:
                {
                   char number[10];
@@ -1009,6 +1018,40 @@ static int rgui_settings_toggle_setting(rgui_handle_t *rgui, unsigned setting, r
                break;
          }
          break;
+      case RGUI_SETTINGS_OVERLAY_OPACITY:
+         {
+            bool changed = false;
+            switch (action)
+            {
+               case RGUI_ACTION_LEFT:
+                  if (g_settings.input.overlay_opacity > 0.0f)
+                  {
+                     g_settings.input.overlay_opacity -= 0.01f;
+                     changed = true;
+                  }
+                  break;
+               case RGUI_ACTION_RIGHT:
+               case RGUI_ACTION_OK:
+                  if (g_settings.input.overlay_opacity < 1.0f)
+                  {
+                     g_settings.input.overlay_opacity += 0.01f;
+                     changed = true;
+                  }
+                  break;
+               case RGUI_ACTION_START:
+                  g_settings.input.overlay_opacity = 1.0f;
+                  changed = true;
+                  break;
+
+               default:
+                  break;
+            }
+
+            if (changed && driver.overlay)
+               input_overlay_set_alpha_mod(driver.overlay,
+                     g_settings.input.overlay_opacity);
+         }
+         break;
 #endif
       // controllers
       case RGUI_SETTINGS_BIND_PLAYER:
@@ -1757,6 +1800,7 @@ static void rgui_settings_controller_populate_entries(rgui_handle_t *rgui)
    rgui_list_clear(rgui->selection_buf);
 #ifdef HAVE_OVERLAY
    rgui_list_push(rgui->selection_buf, "Overlay Preset", RGUI_SETTINGS_OVERLAY_PRESET, 0);
+   rgui_list_push(rgui->selection_buf, "Overlay Opacity", RGUI_SETTINGS_OVERLAY_OPACITY, 0);
 #endif
    rgui_list_push(rgui->selection_buf, "Player", RGUI_SETTINGS_BIND_PLAYER, 0);
    rgui_list_push(rgui->selection_buf, "Device", RGUI_SETTINGS_BIND_DEVICE, 0);