From b91e472289a8dbc5f33884ea9a54b6d76de6f839 Mon Sep 17 00:00:00 2001
From: Rodolfo Ribeiro Gomes <rodolforg@gmail.com>
Date: Dec 13 2019 04:29:26 +0000
Subject: forgot to re-add scroll actions


---

diff --git a/synfig-studio/src/gui/selectdraghelper.h b/synfig-studio/src/gui/selectdraghelper.h
index 5d30660..90e7830 100644
--- a/synfig-studio/src/gui/selectdraghelper.h
+++ b/synfig-studio/src/gui/selectdraghelper.h
@@ -203,9 +203,8 @@ bool
 SelectDragHelper<T>::process_event(GdkEvent *event)
 {
 	switch(event->type) {
-	case GDK_SCROLL: {
-		break;
-	}
+	case GDK_SCROLL:
+		return process_scroll_event(&event->scroll);
 	case GDK_MOTION_NOTIFY:
 		return process_motion_event(&event->motion);
 	case GDK_BUTTON_PRESS:
diff --git a/synfig-studio/src/gui/widgets/widget_curves.cpp b/synfig-studio/src/gui/widgets/widget_curves.cpp
index f331cdf..9a3f0f6 100644
--- a/synfig-studio/src/gui/widgets/widget_curves.cpp
+++ b/synfig-studio/src/gui/widgets/widget_curves.cpp
@@ -443,21 +443,13 @@ Widget_Curves::Widget_Curves():
 	channel_point_sd.signal_drag_finished().connect([&]() {
 //		overlapped_waypoints.clear();
 	});
-	channel_point_sd.signal_redraw_needed().connect([&]() {
-		queue_draw();
-	});
-	channel_point_sd.signal_focus_requested().connect([&]() {
-		grab_focus();
-	});
-	channel_point_sd.signal_selection_changed().connect([&]() {
-		queue_draw();
-	});
-	channel_point_sd.signal_zoom_in_requested().connect([&]() {
-		zoom_in();
-	});
-	channel_point_sd.signal_zoom_out_requested().connect([&]() {
-		zoom_out();
-	});
+	channel_point_sd.signal_redraw_needed().connect(sigc::mem_fun(*this, &Gtk::Widget::queue_draw));
+	channel_point_sd.signal_focus_requested().connect(sigc::mem_fun(*this, &Gtk::Widget::grab_focus));
+	channel_point_sd.signal_selection_changed().connect(sigc::mem_fun(*this, &Gtk::Widget::queue_draw));
+	channel_point_sd.signal_zoom_in_requested().connect(sigc::mem_fun(*this, &Widget_Curves::zoom_in));
+	channel_point_sd.signal_zoom_out_requested().connect(sigc::mem_fun(*this, &Widget_Curves::zoom_out));
+	channel_point_sd.signal_scroll_up_requested().connect(sigc::mem_fun(*this, &Widget_Curves::scroll_up));
+	channel_point_sd.signal_scroll_down_requested().connect(sigc::mem_fun(*this, &Widget_Curves::scroll_down));
 }
 
 Widget_Curves::~Widget_Curves() {