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authorJonathan Gordon <rockbox@jdgordon.info>2007-02-11 10:31:50 +0000
committerJonathan Gordon <rockbox@jdgordon.info>2007-02-11 10:31:50 +0000
commit37d246ab4b7ce03f71fe2bec78413145ea0f49e2 (patch)
treed8611502a41c6df8932ecd41ddec83ce78172c8e /apps/menu.h
parent7c776d4e168ff87367f84e22550a463a51a66e37 (diff)
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Comment the macros a bit, no actual code change
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12271 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/menu.h')
-rw-r--r--apps/menu.h48
1 files changed, 33 insertions, 15 deletions
diff --git a/apps/menu.h b/apps/menu.h
index 939c17ec4e..a192df3073 100644
--- a/apps/menu.h
+++ b/apps/menu.h
@@ -99,34 +99,44 @@ typedef int (*menu_callback_type)(int action,
int do_menu(const struct menu_item_ex *menu);
#define MENU_ITEM_COUNT(c) (c<<MENU_COUNT_SHIFT)
-
+/* In all the following macros the argument names are as follows:
+ - name: The name for the variable (so it can be used in a MAKE_MENU()
+ - str: the string to display for this menu item. use ID2P() for LANG_* id's
+ - callback: The callback function to call for this menu item.
+*/
+
+/* Use this to put a setting into a menu.
+ The setting must appear in settings_list.c.
+ If the setting is not configured properly, the menu will display "Not Done yet!"
+ When the user selects this item the setting select screen will load,
+ when that screen exits the user wll be back in the menu */
#define MENUITEM_SETTING(name,var,callback) \
static const struct menu_item_ex name = \
{MT_SETTING, {.variable = (void*)var},{callback}};
-#define MAKE_MENU( name, str, cb, ... ) \
- static const struct menu_item_ex *name##_[] = {__VA_ARGS__}; \
- static const struct menu_callback_with_desc name##__ = {cb,str}; \
- const struct menu_item_ex name = \
- {MT_MENU|MENU_HAS_DESC| \
- MENU_ITEM_COUNT(sizeof( name##_)/sizeof(*name##_)), \
- { (void*)name##_},{.callback_and_desc = & name##__}};
-
-#define MENUITEM_STRINGLIST(name, str, cb, ... ) \
+/* Use this To create a list of NON-XLATABLE (for the time being) Strings
+ When the user enters this list and selects one, the menu will exits
+ and its return value will be the index of the chosen item */
+#define MENUITEM_STRINGLIST(name, str, callback, ... ) \
static const char *name##_[] = {__VA_ARGS__}; \
- static const struct menu_callback_with_desc name##__ = {cb,str}; \
+ static const struct menu_callback_with_desc name##__ = {callback,str}; \
static const struct menu_item_ex name = \
{MT_RETURN_ID|MENU_HAS_DESC| \
MENU_ITEM_COUNT(sizeof( name##_)/sizeof(*name##_)), \
{ .submenus = name##_},{.callback_and_desc = & name##__}};
+
/* This one should be static'ed also,
- but cannot be done untill sound and playlist menus are done */
-#define MENUITEM_FUNCTION(name, str, func, cb) \
- static const struct menu_callback_with_desc name##_ = {cb,str}; \
+ but cannot be done untill settings menu is done */
+/* Use this to put a function call into the menu.
+ When the user selects this item the function will be run,
+ when it exits the user will be back in the menu. return value is ignored */
+#define MENUITEM_FUNCTION(name, str, func, callback) \
+ static const struct menu_callback_with_desc name##_ = {callback,str}; \
const struct menu_item_ex name = \
{ MT_FUNCTION_CALL|MENU_HAS_DESC, { .function = func}, \
{.callback_and_desc = & name##_}};
+/* Same as above, except the function will be called with a (void*)param. */
#define MENUITEM_FUNCTION_WPARAM(name, str, func, param, callback) \
static const struct menu_callback_with_desc name##_ = {callback,str}; \
static const struct menu_func_with_param name##__ = {func, param}; \
@@ -135,5 +145,13 @@ int do_menu(const struct menu_item_ex *menu);
{ .func_with_param = &name##__}, \
{.callback_and_desc = & name##_}};
-
+/* Use this to actually create a menu. the ... argument is a list of pointers
+ to any of the above macro'd variables. (It can also have other menus in the list. */
+#define MAKE_MENU( name, str, callback, ... ) \
+ static const struct menu_item_ex *name##_[] = {__VA_ARGS__}; \
+ static const struct menu_callback_with_desc name##__ = {callback,str}; \
+ const struct menu_item_ex name = \
+ {MT_MENU|MENU_HAS_DESC| \
+ MENU_ITEM_COUNT(sizeof( name##_)/sizeof(*name##_)), \
+ { (void*)name##_},{.callback_and_desc = & name##__}};
#endif /* End __MENU_H__ */