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scroll view/time.c if control+mouse wheel

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This commit is contained in:
Cedric Roux
2016-05-19 18:01:06 +02:00
parent 392a818b7b
commit 55a4b2cef4
1 changed files with 20 additions and 0 deletions
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common/utils/T/tracer/view/time.c
+20
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@@ -159,15 +159,34 @@ static void scroll(void *private, gui *g,
struct time *this = private;
int *d = notification_data;
int x = d[0];
int key_modifiers = d[2];
double mul = 1.2;
double pixel_length;
int64_t old_px_len_rounded;
struct timespec t;
int scroll_px;
int width;
if (pthread_mutex_lock(&this->lock)) abort();
old_px_len_rounded = this->pixel_length;
/* scroll if control+wheel, zoom otherwise */
if (key_modifiers & KEY_CONTROL) {
timeline_get_width(this->g, this->w, &width);
if (width < 2) width = 2;
scroll_px = 100;
if (scroll_px > width - 1) scroll_px = width - 1;
if (!strcmp(notification, "scrolldown"))
this->start_time = time_add(this->start_time,
nano_to_time(scroll_px * old_px_len_rounded));
else
this->start_time = time_sub(this->start_time,
nano_to_time(scroll_px * old_px_len_rounded));
goto end;
}
if (!strcmp(notification, "scrollup")) mul = 1 / mul;
again:
@@ -191,6 +210,7 @@ again:
t = time_add(this->start_time, nano_to_time(x * old_px_len_rounded));
this->start_time = time_sub(t, nano_to_time(x * (int64_t)pixel_length));
end:
if (pthread_mutex_unlock(&this->lock)) abort();
}