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@tool
extends ScrollContainer
# Script of the TimelineArea (that contains the event blocks).
# Manages the drawing of the event lines and event dragging.
enum DragTypes {NOTHING, NEW_EVENT, EXISTING_EVENTS}
var drag_type : DragTypes = DragTypes.NOTHING
var drag_data : Variant
var drag_to_position := 0
var dragging := false
signal drag_completed(type, index, data)
signal drag_canceled()
func _ready() -> void:
resized.connect(add_extra_scroll_area_to_timeline)
%Timeline.child_entered_tree.connect(add_extra_scroll_area_to_timeline)
# This prevents the view to turn black if you are editing this scene in Godot
if find_parent('EditorView'):
%TimelineArea.get_theme_color("background_color", "CodeEdit")
#region EVENT DRAGGING
################################################################################
func start_dragging(type:DragTypes, data:Variant) -> void:
dragging = true
drag_type = type
drag_data = data
func _input(event:InputEvent) -> void:
if !dragging:
return
if event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_LEFT:
if !event.is_pressed():
finish_dragging()
func _process(delta:float) -> void:
if !dragging:
return
for child in %Timeline.get_children():
if (child.global_position.y < get_global_mouse_position().y) and \
(child.global_position.y+child.size.y > get_global_mouse_position().y):
if get_global_mouse_position().y > child.global_position.y+(child.size.y/2.0):
drag_to_position = child.get_index()+1
queue_redraw()
else:
drag_to_position = child.get_index()
queue_redraw()
func finish_dragging():
dragging = false
if get_global_rect().has_point(get_global_mouse_position()):
drag_completed.emit(drag_type, drag_to_position, drag_data)
else:
drag_canceled.emit()
queue_redraw()
#endregion
#region LINE DRAWING
################################################################################
func _draw() -> void:
var line_width := 5 * DialogicUtil.get_editor_scale()
var horizontal_line_length := 100 * DialogicUtil.get_editor_scale()
var color_multiplier := Color(1,1,1,0.25)
var selected_color_multiplier := Color(1,1,1,1)
## Draw Event Lines
for idx in range($Timeline.get_child_count()):
var block : Control = $Timeline.get_child(idx)
if not "resource" in block:
continue
if not block.visible:
continue
if block.resource is DialogicEndBranchEvent:
continue
if not (block.has_any_enabled_body_content or block.resource.can_contain_events):
continue
var icon_panel_height: int = block.get_node('%IconPanel').size.y
var rect_position: Vector2 = block.get_node('%IconPanel').global_position+Vector2(0,1)*block.get_node('%IconPanel').size+Vector2(0,-4)
var color: Color = block.resource.event_color
if block.is_selected() or block.end_node and block.end_node.is_selected():
color *= selected_color_multiplier
else:
color *= color_multiplier
if block.expanded and not block.resource.can_contain_events:
draw_rect(Rect2(rect_position-global_position+Vector2(line_width, 0), Vector2(line_width, block.size.y-block.get_node('%IconPanel').size.y)), color)
## If the indentation has not changed, nothing else happens
if idx >= $Timeline.get_child_count()-1 or block.current_indent_level >= $Timeline.get_child(idx+1).current_indent_level:
continue
## Draw connection between opening and end branch events
if block.resource.can_contain_events:
var end_node: Node = block.end_node
if end_node != null:
var v_length: float = end_node.global_position.y+end_node.size.y/2-rect_position.y
#var rect_size := Vector2(line_width, )
var offset := Vector2(line_width, 0)
# Draw vertical line
draw_rect(Rect2(rect_position-global_position+offset, Vector2(line_width, v_length)), color)
# Draw horizonal line (on END BRANCH event)
draw_rect(Rect2(
rect_position.x+line_width-global_position.x+offset.x,
rect_position.y+v_length-line_width-global_position.y,
horizontal_line_length-offset.x,
line_width),
color)
if block.resource.wants_to_group:
var group_color: Color = block.resource.event_color*color_multiplier
var group_starter := true
if idx != 0:
var block_above := $Timeline.get_child(idx-1)
if block_above.resource.event_name == block.resource.event_name:
group_starter = false
if block_above.resource is DialogicEndBranchEvent and block_above.parent_node.resource.event_name == block.resource.event_name:
group_starter = false
## Draw small horizontal line on any event in group
draw_rect(Rect2(
rect_position.x-global_position.x-line_width,
rect_position.y-global_position.y-icon_panel_height/2,
line_width,
line_width),
group_color)
if group_starter:
## Find the last event in the group (or that events END BRANCH)
var sub_idx := idx
var group_end_idx := idx
while sub_idx < $Timeline.get_child_count()-1:
sub_idx += 1
if $Timeline.get_child(sub_idx).current_indent_level == block.current_indent_level-1:
group_end_idx = sub_idx-1
break
var end_node := $Timeline.get_child(group_end_idx)
var offset := Vector2(-2*line_width, -icon_panel_height/2)
var v_length: float = end_node.global_position.y - rect_position.y + icon_panel_height
## Draw vertical line
draw_rect(Rect2(
rect_position.x - global_position.x + offset.x,
rect_position.y - global_position.y + offset.y,
line_width,
v_length),
group_color)
## Draw line that indicates the dragging position
if dragging and get_global_rect().has_point(get_global_mouse_position()):
var height: int = 0
if drag_to_position == %Timeline.get_child_count():
height = %Timeline.get_child(-1).global_position.y+%Timeline.get_child(-1).size.y-global_position.y-(line_width/2.0)
else:
height = %Timeline.get_child(drag_to_position).global_position.y-global_position.y-(line_width/2.0)
draw_line(Vector2(0, height), Vector2(size.x*0.9, height), get_theme_color("accent_color", "Editor"), line_width*.3)
#endregion
#region SPACE BELOW
################################################################################
func add_extra_scroll_area_to_timeline(fake_arg:Variant=null) -> void:
if %Timeline.get_children().size() > 4:
%Timeline.custom_minimum_size.y = 0
%Timeline.size.y = 0
if %Timeline.size.y + 200 > %TimelineArea.size.y:
%Timeline.custom_minimum_size = Vector2(0, %Timeline.size.y + 200)
#endregion