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Pixelorama/src/Palette/PaletteSwatch.gd
2023-12-23 21:44:38 +02:00

90 lines
2.4 KiB
GDScript

class_name PaletteSwatch
extends ColorRect
signal pressed(mouse_button: int)
signal double_clicked(mouse_button: int, position: Vector2)
signal dropped(source_index: int, new_index: int)
const DEFAULT_COLOR := Color(0.0, 0.0, 0.0, 0.0)
var index := -1
var show_left_highlight := false
var show_right_highlight := false
var empty := true:
set(value):
empty = value
if empty:
mouse_default_cursor_shape = Control.CURSOR_ARROW
color = Global.control.theme.get_stylebox("disabled", "Button").bg_color
else:
mouse_default_cursor_shape = Control.CURSOR_POINTING_HAND
func _notification(what: int) -> void:
if what == NOTIFICATION_THEME_CHANGED:
if empty:
empty = true
func set_swatch_size(swatch_size: Vector2) -> void:
custom_minimum_size = swatch_size
size = swatch_size
func _draw() -> void:
if not empty:
# Black border around swatches with a color
draw_rect(Rect2(Vector2.ONE, size), Color.BLACK, false, 1)
if show_left_highlight:
# Display outer border highlight
draw_rect(Rect2(Vector2.ONE, size), Color.WHITE, false, 1)
draw_rect(Rect2(Vector2(2, 2), size - Vector2(2, 2)), Color.BLACK, false, 1)
if show_right_highlight:
# Display inner border highlight
var margin := size / 4
draw_rect(Rect2(margin, size - margin * 2), Color.BLACK, false, 1)
draw_rect(
Rect2(margin - Vector2.ONE, size - margin * 2 + Vector2(2, 2)), Color.WHITE, false, 1
)
## Enables drawing of highlights which indicate selected swatches
func show_selected_highlight(new_value: bool, mouse_button: int) -> void:
if not empty:
match mouse_button:
MOUSE_BUTTON_LEFT:
show_left_highlight = new_value
MOUSE_BUTTON_RIGHT:
show_right_highlight = new_value
queue_redraw()
func _get_drag_data(_position: Vector2) -> Variant:
var data = null
if not empty:
var drag_icon: PaletteSwatch = self.duplicate()
drag_icon.show_left_highlight = false
drag_icon.show_right_highlight = false
drag_icon.empty = false
set_drag_preview(drag_icon)
data = {source_index = index}
return data
func _can_drop_data(_position: Vector2, _data) -> bool:
return true
func _drop_data(_position: Vector2, data) -> void:
dropped.emit(data.source_index, index)
func _on_PaletteSlot_gui_input(event: InputEvent) -> void:
if event is InputEventMouseButton and event.is_pressed() and not empty:
if event.double_click:
double_clicked.emit(event.button_index, get_global_rect().position)
else:
pressed.emit(event.button_index)