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Add document.browse.scrolling.vertical_overlap

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Add an option to specify the number of overlapping lines when scrolling
page by page (0 by default because this is ELinks' current behaviour).

Signed-off-by: Fabienne Ducroquet <fabiduc@gmail.com>
This commit is contained in:
Fabienne Ducroquet 2010-08-14 21:24:21 +02:00 committed by Miciah Dashiel Butler Masters
parent 6211b8e725
commit 83945b677c
2 changed files with 15 additions and 4 deletions
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5
src/config/options.inc
View File

@ -397,6 +397,11 @@ static struct option_info config_options_info[] = {
N_("Number of lines to scroll when a key bound to scroll-up "
"or scroll-down is pressed and no prefix was given.")),
INIT_OPT_INT("document.browse.scrolling", N_("Vertical overlap"),
"vertical_overlap", 0, 0, 10, 0,
N_("Number of overlapping lines between the new page displayed "
"and the previous one when scrolling one page up or down.")),
INIT_OPT_TREE("document.browse", N_("Searching"),
"search", 0,

14
src/viewer/text/view.c
View File

@ -94,7 +94,10 @@ move_down(struct session *ses, struct document_view *doc_view, int type, int ove
assert(ses->navigate_mode == NAVIGATE_LINKWISE); /* XXX: drop it at some time. --Zas */
newpos = doc_view->vs->y + doc_view->box.height - overlap;
if (overlap < doc_view->box.height)
newpos = doc_view->vs->y + doc_view->box.height - overlap;
else
newpos = doc_view->vs->y + doc_view->box.height;
if (newpos < doc_view->document->height)
doc_view->vs->y = newpos;
@ -126,7 +129,7 @@ move_part_page_down(struct session *ses, struct document_view *doc_view, int ove
enum frame_event_status
move_page_down(struct session *ses, struct document_view *doc_view)
{
return move_part_page_down(ses, doc_view, 0);
return move_part_page_down(ses, doc_view, get_opt_int("document.browse.scrolling.vertical_overlap", ses));
}
enum frame_event_status
@ -147,7 +150,10 @@ move_up(struct session *ses, struct document_view *doc_view, int type, int overl
if (doc_view->vs->y == 0) return;
doc_view->vs->y -= (doc_view->box.height - overlap);
if (overlap < doc_view->box.height)
doc_view->vs->y -= (doc_view->box.height - overlap);
else
doc_view->vs->y -= doc_view->box.height;
int_lower_bound(&doc_view->vs->y, 0);
@ -178,7 +184,7 @@ move_part_page_up(struct session *ses, struct document_view *doc_view, int overl
enum frame_event_status
move_page_up(struct session *ses, struct document_view *doc_view)
{
return move_part_page_up(ses, doc_view, 0);
return move_part_page_up(ses, doc_view, get_opt_int("document.browse.scrolling.vertical_overlap", ses));
}
enum frame_event_status