static gboolean dt_iop_levels_scroll(GtkWidget *widget, GdkEventScroll *event, gpointer user_data)
{
dt_iop_module_t *self = (dt_iop_module_t *)user_data;
dt_iop_levels_gui_data_t *c = (dt_iop_levels_gui_data_t *)self->gui_data;
dt_iop_levels_params_t *p = (dt_iop_levels_params_t *)self->params;
dt_iop_color_picker_reset(self, TRUE);
if(c->dragging)
{
return FALSE;
}
const float interval = 0.002; // Distance moved for each scroll event
gdouble delta_y;
if(dt_gui_get_scroll_deltas(event, NULL, &delta_y))
{
float new_position = p->levels[c->handle_move] - interval * delta_y;
dt_iop_levels_move_handle(self, c->handle_move, new_position, p->levels, c->drag_start_percentage);
dt_dev_add_history_item(darktable.develop, self, TRUE);
return TRUE;
}
return FALSE;
}
static gboolean lowlight_scrolled(GtkWidget *widget, GdkEventScroll *event, gpointer user_data)
{
dt_iop_module_t *self = (dt_iop_module_t *)user_data;
dt_iop_lowlight_gui_data_t *c = (dt_iop_lowlight_gui_data_t *)self->gui_data;
gdouble delta_y;
if(dt_gui_get_scroll_deltas(event, NULL, &delta_y))
{
c->mouse_radius = CLAMP(c->mouse_radius * (1.0 + 0.1 * delta_y), 0.2 / DT_IOP_LOWLIGHT_BANDS, 1.0);
gtk_widget_queue_draw(widget);
}
return TRUE;
}
static gboolean dt_iop_monochrome_scrolled(GtkWidget *widget, GdkEventScroll *event, gpointer user_data)
{
dt_iop_module_t *self = (dt_iop_module_t *)user_data;
dt_iop_monochrome_params_t *p = (dt_iop_monochrome_params_t *)self->params;
dt_iop_monochrome_gui_data_t *g = (dt_iop_monochrome_gui_data_t *)self->gui_data;
self->request_color_pick = DT_REQUEST_COLORPICK_OFF;
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(g->colorpicker), 0);
gdouble delta_y;
if(dt_gui_get_scroll_deltas(event, NULL, &delta_y))
{
const float old_size = p->size;
p->size = CLAMP(p->size + delta_y * 0.1, 0.5f, 3.0f);
if(old_size != p->size) dt_dev_add_history_item(darktable.develop, self, TRUE);
gtk_widget_queue_draw(widget);
}
return TRUE;
}
