len0rd/rockbox
1
0
Fork 1
mirror of https://github.com/Rockbox/rockbox.git synced 2025-12-10 05:35:20 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

Add paged scrolling option. Really helps when scrolling through large lists on targets with slow LCDs.

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8682 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dan Everton 2006-02-13 19:39:48 +00:00
parent 37a165d796
commit 869275f8ee
5 changed files with 69 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

26
apps/gui/list.c
View file

@ -295,6 +295,15 @@ void gui_list_select_next(struct gui_list * gui_list)
gui_list->selected_item++;
item_pos = gui_list->selected_item - gui_list->start_item;
end_item = gui_list->start_item + nb_lines;
if (global_settings.scroll_paginated)
{
/* When we reach the bottom of the list
* we jump to a new page if there are more items*/
if( item_pos > nb_lines-1 && end_item < gui_list->nb_items )
gui_list->start_item = gui_list->selected_item;
}
else
{
/* we start scrolling vertically when reaching the line
* (nb_lines-SCROLL_LIMIT)
* and when we are not in the last part of the list*/
@ -302,6 +311,7 @@ void gui_list_select_next(struct gui_list * gui_list)
gui_list->start_item++;
}
}
}
void gui_list_select_previous(struct gui_list * gui_list)
{
@ -323,12 +333,28 @@ void gui_list_select_previous(struct gui_list * gui_list)
else
{
int item_pos;
int nb_lines = gui_list->display->nb_lines;
gui_list->selected_item--;
item_pos = gui_list->selected_item - gui_list->start_item;
if (global_settings.scroll_paginated)
{
/* When we reach the top of the list
* we jump to a new page if there are more items*/
if( item_pos < 0 && gui_list->start_item > 0 )
gui_list->start_item = gui_list->selected_item-nb_lines+1;
if( gui_list->start_item < 0 )
gui_list->start_item = 0;
}
else
{
/* we start scrolling vertically when reaching the line
* (nb_lines-SCROLL_LIMIT)
* and when we are not in the last part of the list*/
if( item_pos < SCROLL_LIMIT-1 && gui_list->start_item > 0 )
gui_list->start_item--;
}
}
}
void gui_list_select_next_page(struct gui_list * gui_list, int nb_lines)
{

6
apps/lang/english.lang
View file

@ -3718,3 +3718,9 @@ desc: in the recording screen
eng: "D"
voice: "Digital Gain"
new:
id: LANG_SCROLL_PAGINATED
desc: jump to new page when scrolling
eng: "Paged Scrolling"
voice: ""
new:

1
apps/settings.c
View file

@ -539,6 +539,7 @@ static const struct bit_entry hd_bits[] =
{8|SIGNED, S_O(rec_mic_decimator_right_gain), 0, /* 0dB */
"mic decimator right gain", NULL }, /* -128...48 */
#endif
{1, S_O(scroll_paginated), false, "scroll paginated", off_on },
/* If values are just added to the end, no need to bump the version. */
/* new stuff to be added at the end */

1
apps/settings.h
View file

@ -451,6 +451,7 @@ struct user_settings
#endif
bool warnon_erase_dynplaylist; /* warn when erasing dynamic playlist */
bool scroll_paginated; /* 0=dont 1=do */
};
enum optiontype { INT, BOOL };

9
apps/settings_menu.c
View file

@ -92,6 +92,14 @@ static bool show_icons(void)
return set_bool( (char *)str(LANG_SHOW_ICONS), &global_settings.show_icons );
}
/**
* Menu to set the option to scroll paginated
*/
static bool scroll_paginated(void)
{
return set_bool( (char *)str(LANG_SCROLL_PAGINATED), &global_settings.scroll_paginated );
}
#ifdef HAVE_REMOTE_LCD
static bool remote_contrast(void)
{
@ -1540,6 +1548,7 @@ static bool scroll_settings_menu(void)
{ ID2P(LANG_SCREEN_SCROLL_VIEW), screen_scroll },
{ ID2P(LANG_SCREEN_SCROLL_STEP), screen_scroll_step },
#endif
{ ID2P(LANG_SCROLL_PAGINATED), scroll_paginated },
};
m=menu_init( items, sizeof(items) / sizeof(*items), NULL,