mirror of
https://codeberg.org/StreamGraph/StreamGraph.git
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139 lines
4.4 KiB
GDScript
139 lines
4.4 KiB
GDScript
# (c) 2023-present Eroax
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# (c) 2023-present Yagich
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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extends VBoxContainer
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class_name TabContainerCustom
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## Custom Recreation of [TabContainer] for Flexibility
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##
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## Alternative to [TabContainer]. Instead of using the tree hierarchy to add tabs directly,
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## tabs must be created by script.
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## Reference to the [TabBar] at the top of the container.
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@onready var tab_bar: TabBar = %TabBar
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## Reference to the [Button] at the end of the [TabBar] that's
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## used for adding new tabs.
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@onready var add_tab_button: Button = %Button
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## Reference to the [MarginContainer] around the tab's contents.
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@onready var content_container: MarginContainer = %ContentContainer
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## Emitted when the add [Button] within [member tab_bar] is pressed.
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signal add_button_pressed
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## Emitted when the current tab in [member tab_bar] is changed.
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signal tab_changed(tab: int)
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## Emitted when a tab in [member tab_bar] has been closed.
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## See [signal TabBar.tab_close_requested]
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signal tab_closed(tab: int)
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## Emitted when a request to close a tab in the [member tab_bar] has been requested.
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signal tab_close_requested(tab: int)
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## Emitted when the order of the tabs in [member tab_bar] has been changed.
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signal tab_rearranged(old: int, new: int)
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# Holds the previously active tab in the internal tab_bar
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var _previous_active_tab: int = -1
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var _tab_metadata: Array[Dictionary] #Array[Dictionary[String -> key, Variant]]
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func _ready() -> void:
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tab_bar.tab_selected.connect(
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func(tab: int):
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if _previous_active_tab == tab:
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return
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if _previous_active_tab > -1:
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content_container.get_child(_previous_active_tab).visible = false
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content_container.get_child(tab).visible = true
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tab_changed.emit(tab)
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_previous_active_tab = tab
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)
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tab_bar.tab_close_pressed.connect(func(tab: int): tab_close_requested.emit(tab))
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add_tab_button.pressed.connect(
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func():
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add_button_pressed.emit()
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)
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tab_bar.active_tab_rearranged.connect(
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func(idx_to: int):
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var old := _tab_metadata[_previous_active_tab]
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var new := _tab_metadata[idx_to]
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_tab_metadata[idx_to] = old
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_tab_metadata[_previous_active_tab] = new
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tab_rearranged.emit(_previous_active_tab, idx_to)
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content_container.move_child(content_container.get_child(_previous_active_tab), idx_to)
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_previous_active_tab = idx_to
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)
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## Adds the given [Node] as the displayed content for a tab.
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func add_content(c: Node, tab_title: String) -> void:
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tab_bar.add_tab(tab_title)
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content_container.add_child(c)
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tab_bar.set_current_tab(tab_bar.tab_count - 1)
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#_tab_metadata[tab_bar.tab_count - 1] = {}
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_tab_metadata.append({})
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## Updates the tab at index [param tab_idx]'s title to [param title].
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func set_tab_title(tab_idx: int, title: String) -> void:
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tab_bar.set_tab_title(tab_idx, title)
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func get_tab_title(tab_idx: int) -> String:
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return tab_bar.get_tab_title(tab_idx)
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## Returns the number of tabs.
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func get_tab_count() -> int:
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return tab_bar.tab_count
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## Returns [code]true[/code] if the tab bar has no tabs.
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func is_empty() -> bool:
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return get_tab_count() == 0
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## Closes a tab at the index [param tab].
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func close_tab(tab: int) -> void:
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content_container.get_child(tab).queue_free()
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if !tab_bar.select_previous_available():
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tab_bar.select_next_available()
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tab_bar.remove_tab(tab)
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_tab_metadata.remove_at(tab)
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tab_closed.emit(tab)
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if tab_bar.tab_count == 0:
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_previous_active_tab = -1
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## Returns the currently selected tab.
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func get_current_tab() -> int:
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return tab_bar.current_tab
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## Sets the current tab to the tab at [param idx].
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func set_current_tab(idx: int) -> void:
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tab_bar.current_tab = idx
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## Returns the child of [member content_container] at the [param idx].
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func get_content(idx: int) -> Control:
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return content_container.get_child(idx)
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## Sets the metadata value for the tab at index [param tab_idx] at [param key], which can be
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## retrieved later using [method get_tab_metadata].
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func set_tab_metadata(tab: int, key: String, value: Variant) -> void:
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#var m = _tab_metadata.get(tab, {})
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#m[key] = value
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#_tab_metadata[tab] = m
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var m := _tab_metadata[tab]
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m[key] = value
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## Returns the metadata value set to the tab at index [param tab_idx] using [method set_tab_metadata].
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## If no metadata was previously set, returns [code]null[/code] by default.
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func get_tab_metadata(tab: int, key: String) -> Variant:
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var m = _tab_metadata[tab]
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return m.get(key)
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