Patch #5056 by Jonathan Gordon, with rework and additions by me: Updated Viewer plugin. Replaces annoying mode-toggle key-combos with a settings menu, including a new 'Scroll by Line' option. I've also added a 'hands-free' auto-scroll feature and added lcd_setmargins to the plugin API, since we need it here.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9844 a1c6a512-1295-4272-9138-f99709370657

apps/plugin.c

@@ -182,7 +182,7 @@ static const struct plugin_api rockbox_api = {
     button_get_w_tmo,
     button_status,
     button_clear_queue,
-#ifdef HAS_BUTTON_HOLD 
+#ifdef HAS_BUTTON_HOLD
     button_hold,
 #endif
 
@@ -202,7 +202,7 @@ static const struct plugin_api rockbox_api = {
     settings_parseline,
 #ifndef SIMULATOR
     ata_sleep,
-	ata_disk_is_active,
+    ata_disk_is_active,
 #endif
 
     /* dir */
@@ -290,7 +290,7 @@ static const struct plugin_api rockbox_api = {
     bitswap,
 #endif
 #if CONFIG_CODEC == SWCODEC
-    pcm_play_data,    
+    pcm_play_data,
     pcm_play_stop,
     pcm_set_frequency,
     pcm_is_playing,
@@ -357,7 +357,7 @@ static const struct plugin_api rockbox_api = {
     battery_level_safe,
     battery_time,
 #ifndef SIMULATOR
-	battery_voltage,
+    battery_voltage,
 #endif
 #ifdef HAVE_CHARGING
     charger_inserted,
@@ -434,6 +434,10 @@ static const struct plugin_api rockbox_api = {
     gui_synclist_scroll_left,
 #endif
     gui_synclist_do_button,
+
+#ifdef HAVE_LCD_BITMAP
+    lcd_setmargins,
+#endif
 };
 
 int plugin_load(const char* plugin, void* parameter)
@@ -553,7 +557,7 @@ int plugin_load(const char* plugin, void* parameter)
 #ifdef HAVE_LCD_BITMAP
 #if LCD_DEPTH > 1
 #ifdef HAVE_LCD_COLOR
-    lcd_set_drawinfo(DRMODE_SOLID, global_settings.fg_color, 
+    lcd_set_drawinfo(DRMODE_SOLID, global_settings.fg_color,
                                    global_settings.bg_color);
 #else
     lcd_set_drawinfo(DRMODE_SOLID, LCD_DEFAULT_FG, LCD_DEFAULT_BG);
@@ -607,7 +611,7 @@ void* plugin_get_buffer(int* buffer_size)
     {
         if (plugin_size >= PLUGIN_BUFFER_SIZE)
             return NULL;
-        
+
         *buffer_size = PLUGIN_BUFFER_SIZE-plugin_size;
         buffer_pos = plugin_size;
     }
@@ -620,7 +624,7 @@ void* plugin_get_buffer(int* buffer_size)
     return &pluginbuf[buffer_pos];
 }
 
-/* Returns a pointer to the mp3 buffer. 
+/* Returns a pointer to the mp3 buffer.
    Playback gets stopped, to avoid conflicts. */
 void* plugin_get_audio_buffer(int* buffer_size)
 {
@@ -631,7 +635,7 @@ void* plugin_get_audio_buffer(int* buffer_size)
 }
 
 /* The plugin wants to stay resident after leaving its main function, e.g.
-   runs from timer or own thread. The callback is registered to later 
+   runs from timer or own thread. The callback is registered to later
    instruct it to free its resources before a new plugin gets loaded. */
 void plugin_tsr(void (*exit_callback)(void))
 {

apps/plugin.h

@@ -106,7 +106,7 @@
 #define PLUGIN_API_VERSION 18
 
 /* update this to latest version if a change to the api struct breaks
-   backwards compatibility (and please take the opportunity to sort in any 
+   backwards compatibility (and please take the opportunity to sort in any
    new function which are "waiting" at the end of the function table) */
 #define PLUGIN_MIN_API_VERSION 14
 
@@ -233,7 +233,7 @@ struct plugin_api {
     long (*button_get_w_tmo)(int ticks);
     int (*button_status)(void);
     void (*button_clear_queue)(void);
-#ifdef HAS_BUTTON_HOLD  
+#ifdef HAS_BUTTON_HOLD
     bool (*button_hold)(void);
 #endif
 
@@ -255,7 +255,7 @@ struct plugin_api {
     void (*ata_sleep)(void);
     bool (*ata_disk_is_active)(void);
 #endif
-    
+
     /* dir */
     DIR* (*PREFIX(opendir))(const char* name);
     int (*PREFIX(closedir))(DIR* dir);
@@ -376,7 +376,7 @@ struct plugin_api {
 #endif
 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F) || \
     (CONFIG_CODEC == SWCODEC)
-    void (*sound_set_pitch)(int pitch);        
+    void (*sound_set_pitch)(int pitch);
 #endif
 
     /* MAS communication */
@@ -408,8 +408,8 @@ struct plugin_api {
     void (*menu_insert)(int menu, int position, char *desc, bool (*function) (void));
     void (*menu_set_cursor)(int menu, int position);
 
-    bool (*set_option)(const char* string, void* variable, 
-                       enum optiontype type, const struct opt_items* options, 
+    bool (*set_option)(const char* string, void* variable,
+                       enum optiontype type, const struct opt_items* options,
                        int numoptions, void (*function)(int));
 
 
@@ -473,7 +473,7 @@ struct plugin_api {
     struct tree_context* (*tree_get_context)(void);
 
     /* new stuff at the end, sort into place next time
-       the API gets incompatible */     
+       the API gets incompatible */
     bool (*set_sound)(const unsigned char * string,
                       int* variable, int setting);
 #if ((CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)) && !defined(SIMULATOR)
@@ -510,6 +510,10 @@ struct plugin_api {
     void (*gui_synclist_scroll_left)(struct gui_synclist * lists);
 #endif
     unsigned (*gui_synclist_do_button)(struct gui_synclist * lists, unsigned button);
+
+#ifdef HAVE_LCD_BITMAP
+    void (*lcd_setmargins)(int x, int y);
+#endif
 };
 
 /* plugin header */