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Avoid blank space after the last list box item

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Automatically scroll down the list box when resizing creates some blank
space below the list of items.

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
This commit is contained in:
Lukas Fleischer 2014-05-19 11:07:52 +02:00
parent 990897b2f0
commit 0b46ad4faa
3 changed files with 19 additions and 0 deletions
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2
src/calcurse.h
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@ -1100,7 +1100,9 @@ void wins_scrollwin_draw_deco(struct scrollwin *, int);
void wins_scrollwin_display(struct scrollwin *);
void wins_scrollwin_up(struct scrollwin *, int);
void wins_scrollwin_down(struct scrollwin *, int);
int wins_scrollwin_is_visible(struct scrollwin *, unsigned);
void wins_scrollwin_ensure_visible(struct scrollwin *, unsigned);
void wins_scrollwin_set_lower(struct scrollwin *, unsigned);
void wins_resize(void);
void wins_resize_panels(void);
void wins_show(WINDOW *, const char *);

5
src/listbox.c
View File

@ -68,6 +68,11 @@ void listbox_resize(struct listbox *lb, int y, int x, int h, int w)
if (lb->item_sel < 0)
return;
unsigned last_line = lb->ch[lb->item_count] - 1;
if (wins_scrollwin_is_visible(&(lb->sw), last_line))
wins_scrollwin_set_lower(&(lb->sw), last_line);
wins_scrollwin_ensure_visible(&(lb->sw), lb->ch[lb->item_sel]);
wins_scrollwin_ensure_visible(&(lb->sw), lb->ch[lb->item_sel + 1] - 1);
}

12
src/wins.c
View File

@ -386,6 +386,12 @@ void wins_scrollwin_down(struct scrollwin *sw, int amount)
sw->line_off = sw->line_num - inner_h;
}
int wins_scrollwin_is_visible(struct scrollwin *sw, unsigned line)
{
int inner_h = sw->h - (conf.compact_panels ? 2 : 4);
return ((line >= sw->line_off) && (line < sw->line_off + inner_h));
}
void wins_scrollwin_ensure_visible(struct scrollwin *sw, unsigned line)
{
int inner_h = sw->h - (conf.compact_panels ? 2 : 4);
@ -396,6 +402,12 @@ void wins_scrollwin_ensure_visible(struct scrollwin *sw, unsigned line)
sw->line_off = line - inner_h + 1;
}
void wins_scrollwin_set_lower(struct scrollwin *sw, unsigned line)
{
int inner_h = sw->h - (conf.compact_panels ? 2 : 4);
sw->line_off = MAX((int)line - inner_h + 1, 0);
}
void wins_resize_panels(void)
{
wins_get_config();