#include <customgui_listview.h>

Detailed Description

Inherit this class to supply a data and view model for TreeViewCustomGui. See ActiveObject.cpp SDK example.

Destructor
virtual	~TreeViewFunctions ()

Navigation
virtual void *	GetFirst (void root, void userdata)=0

virtual void *	GetDown (void root, void userdata, void *obj)=0

virtual void *	GetNext (void root, void userdata, void *obj)=0

virtual void *	GetPred (void root, void userdata, void *obj)

Layout
virtual Int32	GetColumnWidth (void root, void userdata, void obj, Int32 col, GeUserArea area)

virtual Int32	GetHeaderColumnWidth (void root, void userdata, Int32 col, GeUserArea *area)

virtual Int32	GetMinHeaderHeight (void root, void userdata, GeUserArea *area)

virtual Int32	GetLineHeight (void root, void userdata, void obj, Int32 col, GeUserArea area)

virtual void	GetColors (void root, void userdata, void obj, GeData pNormal, GeData *pSelected)

virtual void	GetBackgroundColor (void root, void userdata, void obj, Int32 line, GeData col)

Draw
virtual void	DrawCell (void root, void userdata, void obj, Int32 col, DrawInfo drawinfo, const GeData &bgColor)

virtual Bool	DrawHeaderCell (void root, void userdata, Int32 col, DrawInfo *drawinfo)

Select
virtual Bool	IsSelected (void root, void userdata, void *obj)=0

virtual void	Select (void root, void userdata, void *obj, Int32 mode)

Open
virtual Bool	IsOpened (void root, void userdata, void *obj)=0

virtual void	Open (void root, void userdata, void *obj, Bool onoff)

Name and Bubble help
virtual String	GetName (void root, void userdata, void *obj)=0

virtual void	SetName (void root, void userdata, void *obj, const maxon::String &str)

virtual String	GetBubbleHelp (void root, void userdata, void obj, Int32 col, MouseInfo info)

ID
virtual Int	GetId (void root, void userdata, void *obj)=0

Check
virtual Int32	IsChecked (void root, void userdata, void *obj, Int32 lColumn)

virtual void	SetCheck (void root, void userdata, void *obj, Int32 lColumn, Bool bCheck, const BaseContainer &bcMsg)

Tristate
virtual Bool	IsTristate (void root, void userdata)

Drag
virtual Int32	GetDragType (void root, void userdata, void *obj)=0

virtual Int32	DragStart (void root, void userdata, void *obj)

virtual Int32	AcceptDragObject (void root, void userdata, void obj, Int32 dragtype, void dragobject, Bool &bAllowCopy)

virtual void	SetDragObject (void root, void userdata, void *obj)

virtual void	GenerateDragArray (void root, void userdata, void obj, AtomArray ar)

virtual void	GenerateDragData (void root, void userdata, void obj, void *dragdata)

virtual void	FreeDragData (void root, void userdata, void *dragdata)

Insert Object
virtual void	InsertObject (void root, void userdata, void obj, Int32 dragtype, void dragobject, Int32 insertmode, Bool bCopy)

Context Menu
virtual void	CreateContextMenu (void root, void userdata, void obj, Int32 lColumn, BaseContainer bc)

virtual Bool	ContextMenuCall (void root, void userdata, void *obj, Int32 lColumn, Int32 lCommand)

Header/Column
virtual Int32	GetHeaderSortArrow (void root, void userdata, Int32 lColID)

virtual Bool	IsResizeColAllowed (void root, void userdata, Int32 lColID)

virtual Bool	IsMoveColAllowed (void root, void userdata, Int32 lColID)

Input Events
virtual Bool	InputEvent (void root, void userdata, GeUserArea *pArea, const BaseContainer &msg)

virtual Bool	MouseDown (void root, void userdata, void obj, Int32 col, MouseInfo mouseinfo, Bool rightButton)

virtual Int32	DoubleClick (void root, void userdata, void obj, Int32 col, MouseInfo mouseinfo)

virtual void	DeletePressed (void root, void userdata)

virtual Bool	HeaderClick (void root, void userdata, Int32 lColID, Int32 lChannel, Bool bDblClk, Int32 mouseX, Int32 mouseY, GeUserArea *ua)

Notifications
virtual void	Scrolled (void root, void userdata, Int32 h, Int32 v, Int32 x, Int32 y)

virtual void	PaintFinished (void root, void userdata)

virtual Bool	ColumnMoved (void root, void userdata, Int32 lColID, Int32 lInsertBeforeCol, Int32 plIndexMap, const BaseContainer pbcLayout)

virtual void	SelectionChanged (void root, void userdata)

Private
virtual void	InitCache (void root, void userdata)

virtual Bool	PythonCleanup (void root, void userdata)

virtual void	GetDropDownMenu (void root, void userdata, void obj, Int32 lColumn, TreeViewDropDownMenuInfo menuInfo)

virtual void	SetDropDownMenu (void root, void userdata, void *obj, Int32 lColumn, Int32 entry)

virtual void	GetFloatValue (void root, void userdata, void obj, Int32 lColumn, TreeViewFloatSliderInfo sliderInfo)

virtual void	SetFloatValueEx (void root, void userdata, void *obj, Int32 lColumn, Float value)

virtual Bool	AddRow (void root, void userdata)

virtual String	EmptyText (void root, void userdata)

virtual Bool	IsSelectable (void root, void userdata, void *obj)

Non-Overridable
Bool	VisitChildren (void root, void obj, VisitChildrenCallback fn, void userdata, void data1, void *data2)

virtual void	SetFloatValue (void root, void userdata, void *obj, Int32 lColumn, Float value, Bool finalValue)

virtual String	GetNameForEdit (void root, void userdata, void *obj)

virtual maxon::Result< maxon::Data >	StartInput (void root, void userdata)

virtual void	FinishInput (void root, void userdata, maxon::Data &data)

Constructor & Destructor Documentation

◆ ~TreeViewFunctions()

virtual ~TreeViewFunctions ( )

virtual

Destructor.

Member Function Documentation

◆ GetFirst()

virtual void* GetFirst	(	void *	root,
		void *	userdata
	)

pure virtual

Called to retrieve the first object of the tree.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.

Returns: The first object.

◆ GetDown()

virtual void* GetDown	(	void *	root,
		void *	userdata,
		void *	obj
	)

pure virtual

Called to retrieve the first child of obj.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.

Returns: The first child of obj.

◆ GetNext()

virtual void* GetNext	(	void *	root,
		void *	userdata,
		void *	obj
	)

pure virtual

Called to retrieve the object after obj.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.

Returns: The object after obj.

◆ GetPred()

virtual void* GetPred	(	void *	root,
		void *	userdata,
		void *	obj
	)

virtual

Called to retrieve the object before obj.

Note: This is only used for drag and drop checks.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.

Returns: The object before obj.

◆ GetColumnWidth()

virtual Int32 GetColumnWidth	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	col,
		GeUserArea *	area
	)

virtual

Called to retrieve the column width of object obj in column col.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	col	The column index.
[in]	area	The user area used to determine the text width with area->DrawGetTextWidth(). The caller owns the pointed user area.

Returns: The column width.

◆ GetHeaderColumnWidth()

virtual Int32 GetHeaderColumnWidth	(	void *	root,
		void *	userdata,
		Int32	col,
		GeUserArea *	area
	)

virtual

Called to retrieve the width of the header for column col.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	col	The column index.
[in]	area	The user area used to determine the text width with area->DrawGetTextWidth(). The caller owns the pointed user area.

Returns: The header column width, or a negative number for auto header width.

◆ GetMinHeaderHeight()

virtual Int32 GetMinHeaderHeight	(	void *	root,
		void *	userdata,
		GeUserArea *	area
	)

virtual

Called to retrieve the minimum header height.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	area	The user area used to determine the text width with area->DrawGetTextWidth(). The caller owns the pointed user area.

Returns: The minimum header height, or a negative value for auto header height.

◆ GetLineHeight()

virtual Int32 GetLineHeight	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	col,
		GeUserArea *	area
	)

virtual

Called to retrieve the line height of object obj in column col. Always return a positive value.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	col	The column index.
[in]	area	The user area used to determine the text width with area->DrawGetTextWidth(). The caller owns the pointed user area.

Returns: The line height.

◆ GetColors()

virtual void GetColors	(	void *	root,
		void *	userdata,
		void *	obj,
		GeData *	pNormal,
		GeData *	pSelected
	)

virtual

Called to specify the text colors of object obj.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[out]	pNormal	Set this to the normal text color for obj. Can be a vector or a color ID. The caller owns the pointed data.
[out]	pSelected	Set this to the selected text color for obj. Can be a vector or a color ID. The caller owns the pointed data.

◆ GetBackgroundColor()

virtual void GetBackgroundColor	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	line,
		GeData *	col
	)

virtual

Called to specify the background color of line.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	line	The line index.
[out]	col	Set this to the background color for line. Can be a vector or a color ID. The caller owns the pointed data.

◆ DrawCell()

virtual void DrawCell	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	col,
		DrawInfo *	drawinfo,
		const GeData &	bgColor
	)

virtual

Called to draw the cell for object obj in column col into the user area in drawinfo->frame.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	col	The column index.
[in]	drawinfo	The draw information. The caller owns the pointed draw information.
[in]	bgColor	The background color. Can be a vector or a color ID.

◆ DrawHeaderCell()

virtual Bool DrawHeaderCell	(	void *	root,
		void *	userdata,
		Int32	col,
		DrawInfo *	drawinfo
	)

virtual

Called to draw the header for column col into the user area in drawinfo->frame.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	col	The column index.
[in]	drawinfo	The draw information. The caller owns the pointed draw information.

Returns: true if you have drawn the header or false if the header should be drawn by the tree view.

◆ IsSelected()

virtual Bool IsSelected	(	void *	root,
		void *	userdata,
		void *	obj
	)

pure virtual

Called to retrieve the selection status of object obj.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.

Returns: true if the object is selected, otherwise false.

◆ Select()

virtual void Select	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	mode
	)

virtual

Called to select object obj.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	mode	The selection mode: SELECTION

◆ IsOpened()

virtual Bool IsOpened	(	void *	root,
		void *	userdata,
		void *	obj
	)

pure virtual

Called to retrieve the folding status of object obj.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.

Returns: true if the object is opened, otherwise false.

◆ Open()

virtual void Open	(	void *	root,
		void *	userdata,
		void *	obj,
		Bool	onoff
	)

virtual

Called to open or close object obj.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	onoff	true if obj should be opened, otherwise false.

◆ GetName()

virtual String GetName	(	void *	root,
		void *	userdata,
		void *	obj
	)

pure virtual

Called to retrieve the name of object obj.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.

Returns: The object name.

◆ SetName()

virtual void SetName	(	void *	root,
		void *	userdata,
		void *	obj,
		const maxon::String &	str
	)

virtual

Called to set the name of object obj.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	str	The new object name.

◆ GetBubbleHelp()

virtual String GetBubbleHelp	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	col,
		MouseInfo *	info
	)

virtual

Called to retrieve the bubble help of object obj.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	col	The column index.
[in]	info	The cell information.

Returns: The bubble help of the object. Mouse cursor change is supported by adding this suffix: "&mXX&" where XX is a mouse cursor ID: MOUSE. Example:
return GeLoadString(IDS_MY_BUBBLE_HELP) + "&m"_s + String::IntToString(MOUSE_POINT_HAND) + "&"_s;

GeLoadString
const String & GeLoadString(Int32 id)

String::IntToString
static String IntToString(Int32 v)
Definition: c4d_string.h:495

MOUSE_POINT_HAND
static const Int32 MOUSE_POINT_HAND
Point hand cursor.
Definition: ge_prepass.h:2714

◆ GetId()

virtual Int GetId	(	void *	root,
		void *	userdata,
		void *	obj
	)

pure virtual

Called to retrieve the ID of object obj.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.

Returns: The object ID.

◆ IsChecked()

virtual Int32 IsChecked	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	lColumn
	)

virtual

Called to retrieve the checkbox status of object obj for column lColumn.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	lColumn	The column index.

Returns: A combination of the following flags or NOTOK to show no checkbox: LV_CHECKBOX

◆ SetCheck()

virtual void SetCheck	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	lColumn,
		Bool	bCheck,
		const BaseContainer &	bcMsg
	)

virtual

Called to set the checkbox status of object obj.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	lColumn	The column index.
[in]	bCheck	true if the checkbox should be checked, otherwise false.
[in]	bcMsg	The container originally sent to the InputEvent() of the tree view's user area.

◆ IsTristate()

virtual Bool IsTristate	(	void *	root,
		void *	userdata
	)

virtual

Called to retrieve the tristate flag of the tree.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.

Returns: true if the tristate flag is set, otherwise false.

◆ GetDragType()

virtual Int32 GetDragType	(	void *	root,
		void *	userdata,
		void *	obj
	)

pure virtual

Called to retrieve the drag type of object obj, i.e. the type that the user would get if he started a drag in that cell.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.

Returns: The object drag type, or NOTOK to disable drag-and-drop: DRAGTYPE

◆ DragStart()

virtual Int32 DragStart	(	void *	root,
		void *	userdata,
		void *	obj
	)

virtual

Called to determine if object obj can be dragged or not and if dragged objects will be selected or not.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.

Returns: A combination of the following flags: TREEVIEW_DRAGSTART

◆ AcceptDragObject()

virtual Int32 AcceptDragObject	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	dragtype,
		void *	dragobject,
		Bool &	bAllowCopy
	)

virtual

Called to check if object obj can accept the specified drag-and-drop action, and in that case what the result would be.

Note: if obj is nullptr dragobject should be inserted as a child of the root.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	dragtype	The drag type: DRAGTYPE
[in]	dragobject	The drag object. The caller owns the pointed object.
[in]	bAllowCopy	true if copying is allowed to this position., otherwise false.

Returns: The result: INSERT
The ACCEPT_DRAG_OBJECT_FORCE_COPY bit flag can be used together with the INSERT constants.

◆ SetDragObject()

virtual void SetDragObject	(	void *	root,
		void *	userdata,
		void *	obj
	)

virtual

Called to set the drag object to obj.

Note: Useful to determine if dragging happens internally (rearrange items) or externally (dragged items from another tree for instance). To check this, store the drag object data and compare it with dragobject in InsertObject().

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	The drag object on drag start.

◆ GenerateDragArray()

virtual void GenerateDragArray	(	void *	root,
		void *	userdata,
		void *	obj,
		AtomArray *	ar
	)

virtual

Called to generate a drag array for object obj in ar.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	The drag object.
[out]	ar	Fill this array with the drag objects for obj. The caller owns the pointed array.

◆ GenerateDragData()

virtual void GenerateDragData	(	void *	root,
		void *	userdata,
		void *	obj,
		void **	dragdata
	)

virtual

Called to generate drag data and return a pointer to it in dragdata, to be freed with FreeDragData().

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	The drag object.
[out]	dragdata	Points to a pointer that should be set to the generated drag data.

◆ FreeDragData()

virtual void FreeDragData	(	void *	root,
		void *	userdata,
		void *	dragdata
	)

virtual

Called to free the drag data generated by GenerateDragData().

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in,out]	dragdata	The drag data to free.

◆ InsertObject()

virtual void InsertObject	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	dragtype,
		void *	dragobject,
		Int32	insertmode,
		Bool	bCopy
	)

virtual

Called to insert dragobject as specified.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	dragtype	The drag type: DRAGTYPE
[in]	dragobject	The drag object on drag receive. The caller owns the pointed object.
[in]	insertmode	The insert mode: INSERT
[in]	bCopy	true if the object should be copied, otherwise false.

◆ CreateContextMenu()

virtual void CreateContextMenu	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	lColumn,
		BaseContainer *	bc
	)

virtual

Called to build a context menu for object obj and column lColumn. See ShowPopupMenu() for the format.

Note: bc container already contains 2 default items: ID_TREEVIEW_CONTEXT_REMOVE and ID_TREEVIEW_CONTEXT_RESET. These may be removed.
The added menu entry IDs must be larger than ID_TREEVIEW_FIRST_NEW_ID.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	lColumn	The column index.
[in,out]	bc	Add context menu entries to this container. The caller owns the pointed container.

◆ ContextMenuCall()

virtual Bool ContextMenuCall	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	lColumn,
		Int32	lCommand
	)

virtual

Called by a command in the context menu setup in CreateContextMenu().

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	lColumn	The column index.
[in]	lCommand	The menu command ID.

Returns: true if the command has been processed and the data needs to be updated, otherwise false.

◆ GetHeaderSortArrow()

virtual Int32 GetHeaderSortArrow	(	void *	root,
		void *	userdata,
		Int32	lColID
	)

virtual

Called to retrieve the sort mode of column lColID.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	lColID	The column index.

Returns: The sort direction.

◆ IsResizeColAllowed()

virtual Bool IsResizeColAllowed	(	void *	root,
		void *	userdata,
		Int32	lColID
	)

virtual

Called to check if column lColID can be resized or not.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	lColID	The column index.

Returns: true if the column can be resized, otherwise false.

◆ IsMoveColAllowed()

virtual Bool IsMoveColAllowed	(	void *	root,
		void *	userdata,
		Int32	lColID
	)

virtual

Called to check if column lColID can be moved or not.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	lColID	The column index.

Returns: true if the column can be moved, otherwise false.

◆ InputEvent()

virtual Bool InputEvent	(	void *	root,
		void *	userdata,
		GeUserArea *	pArea,
		const BaseContainer &	msg
	)

virtual

Called when an input event is received. All information about the input event is stored in the msg container.
See Input Events for more information. See also MOUSEMOVE_DELTA.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	pArea	The user area of the tree view. The caller owns the pointed user area.
[in]	msg	The event container.

Returns: true if the event was handled, otherwise false.

◆ MouseDown()

virtual Bool MouseDown	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	col,
		MouseInfo *	mouseinfo,
		Bool	rightButton
	)

virtual

Called when a mouse down event is received.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	col	The column index.
[in]	mouseinfo	The mouse information. The caller owns the pointed mouse information.
[in]	rightButton	true if the right mouse button was used, otherwise false.

Returns: true if the event was handled, otherwise false.

◆ DoubleClick()

virtual Int32 DoubleClick	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	col,
		MouseInfo *	mouseinfo
	)

virtual

Called when a mouse double click event is received.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.
[in]	col	The column index.
[in]	mouseinfo	The mouse information. The caller owns the pointed mouse information.

Returns: !=0 if the event was handled.

◆ DeletePressed()

virtual void DeletePressed	(	void *	root,
		void *	userdata
	)

virtual

Called when a delete event is received.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.

◆ HeaderClick()

virtual Bool HeaderClick	(	void *	root,
		void *	userdata,
		Int32	lColID,
		Int32	lChannel,
		Bool	bDblClk,
		Int32	mouseX,
		Int32	mouseY,
		GeUserArea *	ua
	)

virtual

Called when a header has been clicked.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	lColID	The column index.
[in]	lChannel	The mouse channel: BFM_INPUT_CHANNEL
[in]	bDblClk	true for double-click event, otherwise false.
[in]	mouseX	The mouse horizontal position local to the left hand edge of the column or NOTOK if dragging a column
[in]	mouseY	The mouse vertical position local to the header top or NOTOK if dragging a column
[in]	ua	The header's userarea or nullptr if TREEVIEW_MOVE_COLUMN is set to true.

Returns: true if the tree view needs to be updated, otherwise false.

◆ Scrolled()

virtual void Scrolled	(	void *	root,
		void *	userdata,
		Int32	h,
		Int32	v,
		Int32	x,
		Int32	y
	)

virtual

Called when the tree view has been scrolled.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	h	The horizontal scroll steps.
[in]	v	The vertical scroll steps.
[in]	x	The X offset.
[in]	y	The Y offset.

◆ PaintFinished()

virtual void PaintFinished	(	void *	root,
		void *	userdata
	)

virtual

Called when a paint selection has been performed in the tree view.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.

◆ ColumnMoved()

virtual Bool ColumnMoved	(	void *	root,
		void *	userdata,
		Int32	lColID,
		Int32	lInsertBeforeCol,
		Int32 *	plIndexMap,
		const BaseContainer *	pbcLayout
	)

virtual

Called when a column has been moved.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	lColID	The column index.
[in]	lInsertBeforeCol	The column to insert lColID before.
[in]	plIndexMap	The column index map array. The caller owns the pointed array.
[in]	pbcLayout	The new layout container. Basically the same as the container passed in TreeViewCustomGui::SetLayout() but reflecting the changed column order.

Returns: true if the move is acceptable, otherwise false.
If false is returned the layout change is canceled.

◆ SelectionChanged()

virtual void SelectionChanged	(	void *	root,
		void *	userdata
	)

virtual

Called when selection has changed.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.

◆ InitCache()

virtual void InitCache	(	void *	root,
		void *	userdata
	)

virtual

Private.

◆ PythonCleanup()

virtual Bool PythonCleanup	(	void *	root,
		void *	userdata
	)

virtual

Private.

◆ GetDropDownMenu()

virtual void GetDropDownMenu	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	lColumn,
		TreeViewDropDownMenuInfo *	menuInfo
	)

virtual

Gets a drop down menu and it's current selected entry.

Parameters

[in]	root	The tree root.
[in]	userdata	The userdata.
[in]	obj	An object in the tree.
[in]	lColumn	The column.
[out]	menuInfo	The MenuInfo that the user must fill out.

◆ SetDropDownMenu()

virtual void SetDropDownMenu	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	lColumn,
		Int32	entry
	)

virtual

Called to set the current menu entry by e.g. user interaction.

Parameters

[in]	root	The tree root.
[in]	userdata	The userdata.
[in]	obj	An object in the tree.
[in]	lColumn	The column.
[in]	entry	The entry that the user has picked.

◆ GetFloatValue()

virtual void GetFloatValue	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	lColumn,
		TreeViewFloatSliderInfo *	sliderInfo
	)

virtual

Gets the value and ranges for a float slider.

Parameters

[in]	root	The tree root.
[in]	userdata	The userdata.
[in]	obj	An object in the tree.
[in]	lColumn	The column.
[out]	sliderInfo	The information that the user must fill out about the slider, it's range and values.

◆ SetFloatValueEx()

virtual void SetFloatValueEx	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	lColumn,
		Float	value
	)

virtual

Sets the float value from the slider by e.g. user interaction.

Parameters

[in]	root	The tree root.
[in]	userdata	The userdata.
[in]	obj	An object in the tree.
[in]	lColumn	The column.
[in]	value	The value to set.

◆ AddRow()

virtual Bool AddRow	(	void *	root,
		void *	userdata
	)

virtual

Requests to add a row to the treeview

Parameters

[in]	root	The tree root.
[in]	userdata	The userdata.

Returns: true if it succeeds, false if it fails.

◆ EmptyText()

virtual String EmptyText	(	void *	root,
		void *	userdata
	)

virtual

Requests the text to display when the treeview area is completely empty such as "Drag falloff object's here"

Parameters

[in]	root	The tree root.
[in]	userdata	The userdata.

Returns: the text to display in the empty treeview area.

◆ IsSelectable()

virtual Bool IsSelectable	(	void *	root,
		void *	userdata,
		void *	obj
	)

virtual

Checks if the object is selectable, used to determine if the object should be skipped (not selectable) or not (selectable) when changing selection with keyboard (Up/Down/Home/End keys).

Parameters

[in]	root	The tree root.
[in]	userdata	The userdata.
[in]	obj	An object in the tree.

Returns: true if The object is selectable, otherwise false.

◆ VisitChildren()

Bool VisitChildren	(	void *	root,
		void *	obj,
		VisitChildrenCallback	fn,
		void *	userdata,
		void *	data1,
		void *	data2
	)

Visits object obj and all its children, calling fn(root, obj, userdata, data1, data2, result) for each object.

Parameters

[in]	root	The tree root.
[in]	obj	An object in the tree.
[in]	fn	Callback to evaluate for each child.
[in]	userdata	The user data.
[in]	data1	The first data.
[in]	data2	The second data.

Returns: true if all evaluations were successful, otherwise false.

◆ SetFloatValue()

virtual void SetFloatValue	(	void *	root,
		void *	userdata,
		void *	obj,
		Int32	lColumn,
		Float	value,
		Bool	finalValue
	)

virtual

Sets the float value from the slider by e.g. user interaction.

Parameters

[in]	root	The tree root.
[in]	userdata	The userdata.
[in]	obj	An object in the tree.
[in]	lColumn	The column.
[in]	value	The value to set.
[in]	finalValue	True if this is the final value that will be set for this interaction.

◆ GetNameForEdit()

virtual String GetNameForEdit	(	void *	root,
		void *	userdata,
		void *	obj
	)

virtual

Called to retrieve the name of object obj for display in the edit text box.

Parameters

[in]	root	The tree root.
[in]	userdata	The user data.
[in]	obj	An object in the tree.

Returns: The object name.

◆ StartInput()

virtual maxon::Result<maxon::Data> StartInput	(	void *	root,
		void *	userdata
	)

virtual

StartInput is called before input loop starts. This functions allows to lock resources while input events are executed.

Parameters

[in]	root	The tree root.
[in]	userdata	The userdata.

Returns: data which will be passed to FinishInput().

◆ FinishInput()

virtual void FinishInput	(	void *	root,
		void *	userdata,
		maxon::Data &	data
	)

virtual

FinishInput is called at the end of the complete input handling.

Parameters

[in]	root	The tree root.
[in]	userdata	The userdata.
[in]	data	Data generated in StartInput()

Detailed Description

Destructor

Navigation

Layout

Draw

Select

Open

Name and Bubble help

ID

Check

Tristate

Drag

Insert Object

Context Menu

Header/Column

Input Events

Notifications

Private

Non-Overridable

Constructor & Destructor Documentation

◆ ~TreeViewFunctions()

Member Function Documentation

◆ GetFirst()

◆ GetDown()

◆ GetNext()

◆ GetPred()

◆ GetColumnWidth()

◆ GetHeaderColumnWidth()

◆ GetMinHeaderHeight()

◆ GetLineHeight()

◆ GetColors()

◆ GetBackgroundColor()

◆ DrawCell()

◆ DrawHeaderCell()

◆ IsSelected()

◆ Select()

◆ IsOpened()

◆ Open()

◆ GetName()

◆ SetName()

◆ GetBubbleHelp()

◆ GetId()

◆ IsChecked()

◆ SetCheck()

◆ IsTristate()

◆ GetDragType()

◆ DragStart()

◆ AcceptDragObject()

◆ SetDragObject()

◆ GenerateDragArray()

◆ GenerateDragData()

◆ FreeDragData()

◆ InsertObject()

◆ CreateContextMenu()

◆ ContextMenuCall()

◆ GetHeaderSortArrow()

◆ IsResizeColAllowed()

◆ IsMoveColAllowed()

◆ InputEvent()

◆ MouseDown()

◆ DoubleClick()

◆ DeletePressed()

◆ HeaderClick()

◆ Scrolled()

◆ PaintFinished()

◆ ColumnMoved()

◆ SelectionChanged()

◆ InitCache()

◆ PythonCleanup()

◆ GetDropDownMenu()

◆ SetDropDownMenu()

◆ GetFloatValue()

◆ SetFloatValueEx()

◆ AddRow()

◆ EmptyText()

◆ IsSelectable()

◆ VisitChildren()

◆ SetFloatValue()

◆ GetNameForEdit()

◆ StartInput()