fix FS#10870 - slightly change the viewportmanager theme undo-er to be able to force an update even if the theme isnt being toggled from off to on which caused WPS artifacts when leaving the WPS if the theme was enabled

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24087 a1c6a512-1295-4272-9138-f99709370657

apps/debug_menu.c

@@ -2665,7 +2665,7 @@ static int menu_action_callback(int btn, struct gui_synclist *lists)
         menuitems[gui_synclist_get_sel_pos(lists)].function();
         btn = ACTION_REDRAW;
         FOR_NB_SCREENS(i)
-            viewportmanager_theme_undo(i);
+            viewportmanager_theme_undo(i, false);
     }
     return btn;
 }

apps/gui/list.c

@@ -908,7 +908,7 @@ bool simplelist_show_list(struct simplelist_info *info)
     }
     talk_shutup();
     FOR_NB_SCREENS(i)
-       viewportmanager_theme_undo(i);
+       viewportmanager_theme_undo(i, false);
     return false;
 }
 

apps/gui/splash.c

@@ -212,7 +212,7 @@ void splashf(int ticks, const char *fmt, ...)
     if (ticks)
         sleep(ticks);
     FOR_NB_SCREENS(i)
-        viewportmanager_theme_undo(i);
+        viewportmanager_theme_undo(i, false);
 }
 
 void splash(int ticks, const char *str)

apps/gui/usb_screen.c

@@ -320,7 +320,7 @@ void gui_usb_screen_run(void)
         screens[i].backlight_on();
         if(screen_theme_needs_undo[i])
         {
-            viewportmanager_theme_undo(i);
+            viewportmanager_theme_undo(i, false);
         }
     }
 

apps/gui/viewport.c

@@ -69,7 +69,7 @@ static int theme_stack_top[NB_SCREENS]; /* the last item added */
 static struct viewport_stack_item theme_stack[NB_SCREENS][VPSTACK_DEPTH];
 static bool is_theme_enabled(enum screen_type screen);
 
-static void toggle_theme(void)
+static void toggle_theme(enum screen_type screen, bool force)
 {
     bool enable_event = false;
     static bool was_enabled[NB_SCREENS] = {false};
@@ -91,53 +91,50 @@ static void toggle_theme(void)
         
         /* remove the left overs from the previous screen.
          * could cause a tiny flicker. Redo your screen code if that happens */
-        FOR_NB_SCREENS(i)
+        if (!was_enabled[screen] || force)
-        {
-            if (!was_enabled[i])
         {
             struct viewport deadspace, user;
-                viewport_set_defaults(&user, i);
+            viewport_set_defaults(&user, screen);
             deadspace = user; /* get colours and everything */
             /* above */
             deadspace.x = 0;
             deadspace.y = 0;
-                deadspace.width = screens[i].lcdwidth;
+            deadspace.width = screens[screen].lcdwidth;
             deadspace.height = user.y;
             if (deadspace.width && deadspace.height)
             {
-                    screens[i].set_viewport(&deadspace);
+                screens[screen].set_viewport(&deadspace);
-                    screens[i].clear_viewport();
+                screens[screen].clear_viewport();
-                    screens[i].update_viewport();
+                screens[screen].update_viewport();
             }
             /* below */
             deadspace.y = user.y + user.height;
-                deadspace.height = screens[i].lcdheight - deadspace.y;
+            deadspace.height = screens[screen].lcdheight - deadspace.y;
             if (deadspace.width && deadspace.height)
             {
-                    screens[i].set_viewport(&deadspace);
+                screens[screen].set_viewport(&deadspace);
-                    screens[i].clear_viewport();
+                screens[screen].clear_viewport();
-                    screens[i].update_viewport();
+                screens[screen].update_viewport();
             }
             /* left */
             deadspace.x = 0;
             deadspace.y = 0;
             deadspace.width = user.x;
-                deadspace.height = screens[i].lcdheight;
+            deadspace.height = screens[screen].lcdheight;
             if (deadspace.width && deadspace.height)
             {
-                    screens[i].set_viewport(&deadspace);
+                screens[screen].set_viewport(&deadspace);
-                    screens[i].clear_viewport();
+                screens[screen].clear_viewport();
-                    screens[i].update_viewport();
+                screens[screen].update_viewport();
             }
             /* below */
             deadspace.x = user.x + user.width;
-                deadspace.width = screens[i].lcdwidth - deadspace.x;
+            deadspace.width = screens[screen].lcdwidth - deadspace.x;
             if (deadspace.width && deadspace.height)
             {
-                    screens[i].set_viewport(&deadspace);
+                screens[screen].set_viewport(&deadspace);
-                    screens[i].clear_viewport();
+                screens[screen].clear_viewport();
-                    screens[i].update_viewport();
+                screens[screen].update_viewport();
-                }
             }
         }
         send_event(GUI_EVENT_ACTIONUPDATE, (void*)1); /* force a redraw */
@@ -167,19 +164,19 @@ void viewportmanager_theme_enable(enum screen_type screen, bool enable,
         panicf("Stack overflow... viewportmanager");
     theme_stack[screen][top].enabled = enable;
     theme_stack[screen][top].vp = viewport;
-    toggle_theme();
+    toggle_theme(screen, false);
     /* then be nice and set the viewport up */
     if (viewport)
         viewport_set_defaults(viewport, screen);
 }
 
-void viewportmanager_theme_undo(enum screen_type screen)
+void viewportmanager_theme_undo(enum screen_type screen, bool force_redraw)
 {
     int top = --theme_stack_top[screen];
     if (top < 0)
         panicf("Stack underflow... viewportmanager");
     
-    toggle_theme();
+    toggle_theme(screen, force_redraw);
 }
 
 
@@ -259,7 +256,7 @@ void viewportmanager_theme_changed(const int which)
             /* This can probably be done better...
              * disable the theme so it's forced to do a full redraw  */
             viewportmanager_theme_enable(i, false, NULL);
-            viewportmanager_theme_undo(i);
+            viewportmanager_theme_undo(i, true);
         }
     }
     send_event(GUI_EVENT_THEME_CHANGED, NULL);

apps/gui/viewport.h

@@ -53,8 +53,10 @@ void viewport_set_fullscreen(struct viewport *vp,
 #ifdef HAVE_LCD_BITMAP
 void viewportmanager_theme_enable(enum screen_type screen, bool enable,
                                  struct viewport *viewport);
-
+/* Force will cause a redraw even if the theme was previously and 
-void viewportmanager_theme_undo(enum screen_type screen);
+ * currently enabled (i,e the undo doing nothing).
+ * Should almost always be set to false except coming out of fully skinned screens */
+void viewportmanager_theme_undo(enum screen_type screen, bool force_redraw);
 
 /* call this when a theme changed */
 void viewportmanager_theme_changed(const int);

apps/gui/wps.c

@@ -565,7 +565,16 @@ static void gwps_leave_wps(void)
     {
         gui_wps[i].display->stop_scroll();
         gui_wps[i].display->backdrop_show(BACKDROP_MAIN);
-        viewportmanager_theme_undo(i);
+        
+        bool draw = false;
+#ifdef HAVE_LCD_BITMAP
+        if (gui_wps[i].data->wps_sb_tag)
+            draw = gui_wps[i].data->show_sb_on_wps;
+        else if (statusbar_position(i) != STATUSBAR_OFF)
+            draw = true;
+#endif
+        viewportmanager_theme_undo(i, draw);
+        
     }
 
 #if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)

apps/menu.c

@@ -687,7 +687,7 @@ int do_menu(const struct menu_item_ex *start_menu, int *start_selected,
                             gui_synclist_get_sel_pos(&lists), menu);
     }
    FOR_NB_SCREENS(i)
-       viewportmanager_theme_undo(i);
+       viewportmanager_theme_undo(i, false);
     return ret;
 }
 

apps/menus/eq_menu.c

@@ -576,7 +576,7 @@ bool eq_menu_graphical(void)
         screens[i].setfont(FONT_UI);
         screens[i].clear_display();
         screens[i].set_viewport(NULL);
-        viewportmanager_theme_undo(i);
+        viewportmanager_theme_undo(i, false);
     }
     return result;
 }

apps/menus/theme_menu.c

@@ -51,7 +51,7 @@ static int clear_main_backdrop(void)
     backdrop_show(BACKDROP_MAIN);
     /* force a full redraw so the whole backdrop is cleared */
     viewportmanager_theme_enable(SCREEN_MAIN, false, NULL);
-    viewportmanager_theme_undo(SCREEN_MAIN);
+    viewportmanager_theme_undo(SCREEN_MAIN, false);
     settings_save();
     return 0;
 }
@@ -165,7 +165,7 @@ static int statusbar_callback_ex(int action,const struct menu_item_ex *this_item
             send_event(GUI_EVENT_STATUSBAR_TOGGLE, NULL);
             /* force a full redraw */
             viewportmanager_theme_enable(screen, false, NULL);
-            viewportmanager_theme_undo(screen);
+            viewportmanager_theme_undo(screen, false);
             break;
     }
     return ACTION_REDRAW;

apps/plugin.c

@@ -835,7 +835,7 @@ int plugin_load(const char* plugin, const void* parameter)
 #endif
 
     FOR_NB_SCREENS(i)
-        viewportmanager_theme_undo(i);
+        viewportmanager_theme_undo(i, false);
 
     if (pfn_tsr_exit == NULL)
         plugin_loaded = false;

apps/recorder/keyboard.c

@@ -1128,7 +1128,7 @@ int kbd_input(char* text, int buflen)
     FOR_NB_SCREENS(l)
     {
         screens[l].setfont(FONT_UI);
-        viewportmanager_theme_undo(l);
+        viewportmanager_theme_undo(l, false);
    }
     return ret;
 }

apps/screens.c

@@ -930,7 +930,7 @@ int calibrate(void)
         sizeof(struct touchscreen_parameter));
 
     touchscreen_set_mode(old_mode);
-    viewportmanager_theme_undo(SCREEN_MAIN);
+    viewportmanager_theme_undo(SCREEN_MAIN, false);
 
     settings_save();
     return ret;