72 lines
2.2 KiB
GDScript
72 lines
2.2 KiB
GDScript
@tool
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class_name Timeline
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extends Control
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@export var font_scale: float = 1.0
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@export var time_offset: float = 0.0
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@export var grid_space_seconds: float = 0.25
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@export var label_interval_seconds: float = 1.0
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@export var line_thickness: int = 1
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@export var primary_line_step: int = 4
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@export var cursor_width: int = 8
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@export var base_scale: float = 2.0
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@export var zoom: float = 1.0
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@export var min_zoom: float = 0.1
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func _draw():
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draw_intervals()
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# draw_top_time_labels()
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pass
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func _gui_input(event):
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var zoom_factor = 1.1
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if event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_WHEEL_DOWN:
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zoom /= zoom_factor
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queue_redraw()
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if event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_WHEEL_UP:
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zoom *= zoom_factor
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queue_redraw()
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if event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_WHEEL_LEFT:
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time_offset -= 0.1 / zoom
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queue_redraw()
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if event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_WHEEL_RIGHT:
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time_offset += 0.1 / zoom
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queue_redraw()
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zoom = max(min_zoom, zoom)
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time_offset = max(0.0, time_offset)
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func draw_intervals():
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var font = get_theme_default_font()
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var font_size = get_theme_default_font_size()
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var current_width = size.x
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var current_height = size.y
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var primary_color = get_theme_color("line_primary_color", "Timeline")
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var secondary_color = get_theme_color("line_secondary_color", "Timeline")
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var interval = grid_space_seconds * base_scale * zoom * current_width
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var first_line_index = roundi(time_offset / grid_space_seconds)
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var first_line_position = -(time_offset - (first_line_index * grid_space_seconds)) * interval
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var line_count = ceil(current_width / interval) + 4
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var current_position = first_line_position
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for i in range(first_line_index, first_line_index + line_count):
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if current_position > current_width:
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break
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if current_position >= -interval:
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var color = secondary_color
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if i % primary_line_step == 0:
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draw_string(font, Vector2(current_position, 0), str(i * grid_space_seconds), HORIZONTAL_ALIGNMENT_CENTER, -1, font_size * font_scale)
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color = primary_color
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draw_line(Vector2(current_position, 0), Vector2(current_position, current_height), color, line_thickness)
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current_position += interval
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