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Add an option to turn off filtering

This commit is contained in:
Přemysl Eric Janouch 2021-11-26 22:34:53 +01:00
parent 174896d3e6
commit bae65a61f7
Signed by: p
GPG Key ID: A0420B94F92B9493
1 changed files with 12 additions and 1 deletions
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11
fastiv-view.c
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@ -34,6 +34,7 @@ struct _FastivView {
cairo_surface_t *surface; ///< The loaded image (sequence)
cairo_surface_t *frame; ///< Current frame within, unreferenced
FastivIoOrientation orientation; ///< Current orientation
bool filter;
bool scale_to_fit;
double scale;
};
@ -350,8 +351,12 @@ fastiv_view_draw(GtkWidget *widget, cairo_t *cr)
cairo_pattern_t *pattern = cairo_get_source(cr);
cairo_pattern_set_matrix(pattern, &matrix);
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_PAD);
// TODO(p): Prescale it ourselves to an off-screen bitmap, gamma-correctly.
if (self->filter)
cairo_pattern_set_filter(pattern, CAIRO_FILTER_GOOD);
else
cairo_pattern_set_filter(pattern, CAIRO_FILTER_NEAREST);
#ifdef GDK_WINDOWING_QUARTZ
// Not supported there. Acts a bit like repeating, but weirdly offset.
@ -439,6 +444,11 @@ fastiv_view_key_press_event(GtkWidget *widget, GdkEventKey *event)
case GDK_KEY_F:
return set_scale_to_fit(self, !self->scale_to_fit);
case GDK_KEY_i:
self->filter = !self->filter;
gtk_widget_queue_draw(widget);
return TRUE;
case GDK_KEY_less:
self->orientation = view_left[self->orientation];
gtk_widget_queue_resize(widget);
@ -504,6 +514,7 @@ fastiv_view_init(FastivView *self)
{
gtk_widget_set_can_focus(GTK_WIDGET(self), TRUE);
self->filter = true;
self->scale = 1.0;
}