SummerDay/addons/summer_day/tool/canvas/canvas.gd

67 lines
1.6 KiB
GDScript3
Raw Normal View History

2021-11-18 17:23:37 +01:00
tool
extends Control
class_name SummerDayCanvas
signal fill_transform_changed(fill_transform)
signal canvas_transform_changed(canvas_transform)
signal view_transform_changed(view_transform)
var scene: SummerDayScene
var fill_transform := Transform2D.IDENTITY
var canvas_transform := Transform2D.IDENTITY
var view_transform := Transform2D.IDENTITY # fill_transform * canvas_transform
func _ready():
#connect("resized", self, "_size_changed")
pass
func _gui_input(event):
if event is InputEventMagnifyGesture:
print(event.factor)
if event is InputEventMouseButton:
print(event.pressed)
func _on_SummerDay_scene_changed(new_scene):
scene = new_scene
_update_fill_transform()
$Label.text = str(scene) + "\n" + str(scene.aspect_ratio)
func _on_Canvas_resized():
_update_fill_transform()
range(-1, 1, 2)
func _update_fill_transform():
if scene == null:
fill_transform = Transform2D.IDENTITY
else:
var aspect_ratio = scene.aspect_ratio.x / scene.aspect_ratio.y
var size_ratio = rect_size.x / rect_size.y
var scale
var translation = Vector2.ZERO
if aspect_ratio <= size_ratio:
scale = rect_size.y
translation.x = rect_size.x * 0.5 - aspect_ratio * scale * 0.5
else:
scale = rect_size.x / aspect_ratio
translation.y = rect_size.y * 0.5 - scale * 0.5
fill_transform = Transform2D.IDENTITY.scaled(Vector2(scale, scale))
fill_transform = fill_transform.translated(translation)
print(fill_transform)
emit_signal("fill_transform_changed", fill_transform)
func _update_view_transformation(transform):
view_transform = fill_transform * canvas_transform
emit_signal("view_transform_changed", view_transform)