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Try to make the view full

This commit is contained in:
Přemysl Eric Janouch 2016-10-22 23:10:58 +02:00
parent dcfc9bfd22
commit 6155c9bf91
Signed by: p
GPG Key ID: B715679E3A361BE6
1 changed files with 26 additions and 15 deletions
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41
src/sdtui.c
View File

@ -1124,11 +1124,12 @@ app_count_view_items (Application *self)
}
/// Scroll up @a n entries. Doesn't redraw.
static gboolean
static gint
app_scroll_up (Application *self, guint n)
{
guint n_definitions = app_count_view_items (self);
while (n--)
gint scrolled = 0;
for (; n--; scrolled++)
{
if (self->top_offset > 0)
{
@ -1138,7 +1139,7 @@ app_scroll_up (Application *self, guint n)
// We've reached the top
if (self->top_position == 0)
return FALSE;
break;
ViewEntry *ve = prepend_entry (self, --self->top_position);
self->top_offset = ve->definitions_length - 1;
@ -1155,18 +1156,19 @@ app_scroll_up (Application *self, guint n)
(self->entries, self->entries->len - 1);
}
}
return TRUE;
return scrolled;
}
/// Scroll down @a n entries. Doesn't redraw.
static gboolean
static gint
app_scroll_down (Application *self, guint n)
{
guint n_definitions = app_count_view_items (self);
while (n--)
gint scrolled = 0;
for (; n--; scrolled++)
{
if (self->entries->len == 0)
return FALSE;
break;
// Simulate the movement first to disallow scrolling past the end
guint to_be_offset = self->top_offset;
@ -1183,7 +1185,7 @@ app_scroll_down (Application *self, guint n)
ViewEntry *new_entry = entry_for_position
(self, self->top_position + self->entries->len);
if (!new_entry)
return FALSE;
break;
g_ptr_array_add (self->entries, new_entry);
to_be_definitions += new_entry->definitions_length;
@ -1197,7 +1199,7 @@ app_scroll_down (Application *self, guint n)
self->top_offset = to_be_offset;
n_definitions = to_be_definitions;
}
return TRUE;
return scrolled;
}
/// Moves the selection one entry up.
@ -1270,6 +1272,16 @@ app_redraw (Application *self)
app_redraw_top (self);
}
/// When dictionary contents are longer than the screen, eliminate empty space
static void
app_fill_view (Application *self)
{
gint missing = LINES - TOP_BAR_CUTOFF
- (gint) (app_count_view_items (self) - self->top_offset);
if (missing > 0)
self->selected += app_scroll_up (self, missing);
}
/// Search for the current entry.
static void
app_search_for_entry (Application *self)
@ -1298,13 +1310,12 @@ app_search_for_entry (Application *self)
// actually, one third seems to be a better guess
if (self->center_search)
{
for (int half = (LINES - TOP_BAR_CUTOFF) / 3; half > 0; half--)
if (app_scroll_up (self, 1))
self->selected++;
else
break;
gint half = (LINES - TOP_BAR_CUTOFF) / 3;
if (half > 0)
self->selected += app_scroll_up (self, half);
}
app_fill_view (self);
app_redraw_view (self);
}
@ -1327,11 +1338,11 @@ static gboolean
app_process_resize (Application *self)
{
app_reload_view (self);
app_fill_view (self);
guint n_visible = app_count_view_items (self) - self->top_offset;
if ((gint) n_visible > LINES - TOP_BAR_CUTOFF)
n_visible = LINES - TOP_BAR_CUTOFF;
if (self->selected >= n_visible)
{
app_scroll_down (self, self->selected - n_visible + 1);