112 lines
2.9 KiB
GDScript
112 lines
2.9 KiB
GDScript
@tool
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extends FlexContainer3D
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class_name Pagination3D
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signal on_page_changed(page: int)
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const ButtonScene = preload ("res://content/ui/components/button/button.tscn")
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const LabelScene = preload ("res://content/ui/components/label_container/label_container.tscn")
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const ButtonMaterial = preload ("button.material")
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const ButtonActiveMaterial = preload ("button_active.material")
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@onready var prev_button = $Prev
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@onready var next_button = $Next
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@export var page: int = 0:
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set(value):
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if page == value: return
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page = clamp(value, 0, pages - 1)
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_update()
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@export var pages: int = 5:
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set(value):
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if pages == value: return
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pages = max(1, value)
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_update()
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@export var visible_pages: int = 5:
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set(value):
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if visible_pages == value: return
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visible_pages = max(5, value)
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_update()
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func _ready():
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_update()
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prev_button.on_button_up.connect(func():
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page -= 1
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on_page_changed.emit(page)
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)
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next_button.on_button_up.connect(func():
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page += 1
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on_page_changed.emit(page)
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)
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func _update():
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print("update %s %s %s %s" % [page, pages, visible_pages, get_parent()])
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if !is_node_ready(): return
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for child in get_children():
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if child != prev_button&&child != next_button:
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remove_child(child)
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child.queue_free()
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var display_pages = min(pages, visible_pages)
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var center_pos = floor(display_pages / 2)
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var start_dots = pages > visible_pages&&page > visible_pages - center_pos - 1
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var end_dots = pages > visible_pages&&page < pages - visible_pages + floor((display_pages - 1) / 2)
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var at_start = page == 0
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prev_button.disabled = at_start
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prev_button.visible = !at_start
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var at_end = page == pages - 1
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next_button.disabled = at_end
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next_button.visible = !at_end
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prev_button.size = Vector3(size.y, size.y, size.z)
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next_button.size = Vector3(size.y, size.y, size.z)
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print("A %s %s %s %s" % [display_pages, center_pos, start_dots, end_dots])
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for i in range(display_pages):
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if (start_dots&&i == 1)||(end_dots&&i == display_pages - 2):
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var container = Container3D.new()
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container.size = Vector3(size.y, size.y, size.z)
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add_child(container)
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move_child(container, -2)
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var dots = LabelScene.instantiate()
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dots.text = "..."
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container.add_child(dots)
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continue
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var button = ButtonScene.instantiate()
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button.size = Vector3(size.y, size.y, size.z)
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if i == 0:
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button.label = "1"
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elif i == display_pages - 1:
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button.label = str(pages)
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elif pages <= visible_pages:
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button.label = str(i + 1)
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elif visible_pages % 2 == 1:
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button.label = str(clamp(page, center_pos, pages - 1 - center_pos) - center_pos + i + 1)
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else:
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button.label = str(clamp(page + 1, 3, pages - 3) - center_pos + i + 1)
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button.on_button_up.connect(func():
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page=int(button.label) - 1
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on_page_changed.emit(page)
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)
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add_child(button)
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move_child(button, -2)
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button.get_node("Body/MeshInstance3D").material_override = ButtonActiveMaterial if (int(button.label) - 1) == page else ButtonMaterial
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super._update()
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