Add shortcuts to frame all/selected nodes

material_maker/doc/user_interface_main_menu.rst

@@ -97,6 +97,10 @@ View menu
 
 * *Reset zoom* Resets the zoom level of the current material graph view
 
+* *Frame selected nodes* Zoom in/out to selected nodes so that they fit the graph view
+
+* *Frame all nodes* Zoom in/out to all nodes to fit the graph view
+
 * *Show/Hide side panels* (or the *Control+SpaceBar* keyboard shortcut) can
   be used to hide the side panels so the space available for the main panel
   is maximized (which can be useful on smaller displays).

material_maker/doc/user_interface_shortcuts.rst

@@ -124,6 +124,10 @@ Graph Editor
 +-------------------------------------------------------+----------------------------------------------------+
 | :kbd:`Ctrl/Cmd-Shift-Z`                               | Redo                                               |
 +-------------------------------------------------------+----------------------------------------------------+
+| :kbd:`.`                                              | Frame selected nodes                               |
++-------------------------------------------------------+----------------------------------------------------+
+| :kbd:`Home`                                           | Frame all nodes                                    |
++-------------------------------------------------------+----------------------------------------------------+
 
 Nodes
 +++++

material_maker/main_window.gd

@@ -97,6 +97,8 @@ const MENU : Array[Dictionary] = [
 
 	{ menu="View/Center view", command="view_center", shortcut="C" },
 	{ menu="View/Reset zoom", command="view_reset_zoom", shortcut="Control+0" },
+	{ menu="View/Frame selected nodes", command="view_frame_all", shortcut="PERIOD"},
+	{ menu="View/Frame all", command="view_frame_all", shortcut="HOME"},
 	{ menu="View/-" },
 	# { menu="View/Show or Hide side panels", command="toggle_side_panels", shortcut="Control+Space" },
 	{ menu="View/Panels", submenu="show_panels" },
@@ -1036,6 +1038,14 @@ func view_reset_zoom() -> void:
 	var graph_edit : MMGraphEdit = get_current_graph_edit()
 	graph_edit.zoom = 1
 
+func view_frame_selected() -> void:
+	var graph_edit : MMGraphEdit = get_current_graph_edit()
+	graph_edit.frame_nodes(true)
+
+func view_frame_all() -> void:
+	var graph_edit : MMGraphEdit = get_current_graph_edit()
+	graph_edit.frame_nodes()
+
 func toggle_side_panels() -> void:
 	$VBoxContainer/Layout.toggle_side_panels()
 

material_maker/panels/graph_edit/graph_edit.gd

@@ -280,6 +280,9 @@ func _gui_input(event) -> void:
 				KEY_MASK_ALT | KEY_S:
 					if OS.get_name() == "macOS":
 						swap_node_inputs()
+				KEY_PERIOD:
+					if OS.get_name() == "macOS":
+						frame_nodes(true)
 				KEY_LEFT:
 					scroll_offset.x -= 0.5*size.x
 					accept_event()
@@ -615,6 +618,28 @@ func center_view() -> void:
 		center /= node_count
 		scroll_offset = center * zoom - 0.5*size
 
+func frame_nodes(frame_selected : bool = false) -> void:
+	var nodes := get_children().filter(func(c): return c is GraphElement)
+	if frame_selected:
+		nodes = get_selected_nodes()
+	if nodes.is_empty():
+		return
+	var count := 0
+	var bbox : Rect2
+
+	for c in nodes:
+		count += 1
+		if count == 1:
+			bbox.position = c.position_offset + 0.5 * c.size
+		else:
+			bbox = bbox.expand(c.position_offset + 0.5 * c.size)
+	bbox = bbox.grow(160.0).grow_individual(0.0, 20.0, 0.0, 20.0)
+	var sc = size / bbox.size
+	var _zoom := minf(minf(sc.x, sc.y), 1.5)
+	var tween := get_tree().create_tween()
+	tween.parallel().tween_property(self, "zoom", _zoom, 0.3).set_ease(Tween.EASE_OUT).set_trans(Tween.TRANS_CUBIC)
+	tween.parallel().tween_property(self, "scroll_offset", bbox.get_center() * _zoom - 0.5 * size, 0.3).set_ease(Tween.EASE_OUT).set_trans(Tween.TRANS_CUBIC)
+
 func update_view(g) -> void:
 	if generator != null and is_instance_valid(generator):
 		generator.disconnect("connections_changed", Callable(self, "on_connections_changed"))