63da7df701
Added wxTR_NO_LINES to remove lines from tree control (MSW only). git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@7925 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
747 lines
28 KiB
TeX
747 lines
28 KiB
TeX
\section{\class{wxTreeCtrl}}\label{wxtreectrl}
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A tree control presents information as a hierarchy, with items that may be expanded
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to show further items. Items in a tree control are referenced by wxTreeItemId handles.
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To intercept events from a tree control, use the event table macros described in \helpref{wxTreeEvent}{wxtreeevent}.
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\wxheading{Derived from}
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\helpref{wxControl}{wxcontrol}\\
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\helpref{wxWindow}{wxwindow}\\
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\helpref{wxEvtHandler}{wxevthandler}\\
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\helpref{wxObject}{wxobject}
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\wxheading{Include files}
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<wx/treectrl.h>
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\wxheading{Window styles}
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\twocolwidtha{5cm}
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\begin{twocollist}\itemsep=0pt
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\twocolitem{\windowstyle{wxTR\_HAS\_BUTTONS}}{Use this style to show + and - buttons to the
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left of parent items. Win32 only. }
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\twocolitem{\windowstyle{wxTR\_NO\_LINES}}{Use this style to hide vertical lines.
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Win32 only. }
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\twocolitem{\windowstyle{wxTR\_LINES\_AT\_ROOT}}{Use this style to show lines at the
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tree root. Win32 only.}
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\twocolitem{\windowstyle{wxTR\_EDIT\_LABELS}}{Use this style if you wish the user to be
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able to edit labels in the tree control.}
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\twocolitem{\windowstyle{wxTR\_MULTIPLE}}{Use this style to allow the user to
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select more than one item in the control - by default, only one item may be
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selected.}
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\end{twocollist}
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See also \helpref{window styles overview}{windowstyles}.
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\wxheading{Event handling}
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To process input from a tree control, use these event handler macros to direct input to member
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functions that take a \helpref{wxTreeEvent}{wxtreeevent} argument.
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\twocolwidtha{7cm}
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\begin{twocollist}\itemsep=0pt
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\twocolitem{{\bf EVT\_TREE\_BEGIN\_DRAG(id, func)}}{Begin dragging with the left mouse button.}
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\twocolitem{{\bf EVT\_TREE\_BEGIN\_RDRAG(id, func)}}{Begin dragging with the right mouse button.}
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\twocolitem{{\bf EVT\_TREE\_BEGIN\_LABEL\_EDIT(id, func)}}{Begin editing a label. This can be prevented by calling \helpref{Veto()}{wxnotifyeventveto}.}
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\twocolitem{{\bf EVT\_TREE\_END\_LABEL\_EDIT(id, func)}}{Finish editing a label. This can be prevented by calling \helpref{Veto()}{wxnotifyeventveto}.}
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\twocolitem{{\bf EVT\_TREE\_DELETE\_ITEM(id, func)}}{Delete an item.}
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\twocolitem{{\bf EVT\_TREE\_GET\_INFO(id, func)}}{Request information from the application.}
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\twocolitem{{\bf EVT\_TREE\_SET\_INFO(id, func)}}{Information is being supplied.}
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\twocolitem{{\bf EVT\_TREE\_ITEM\_ACTIVATED(id, func)}}{The item has been activated, i.e. chosen by double clicking it with mouse or from keyboard}
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\twocolitem{{\bf EVT\_TREE\_ITEM\_COLLAPSED(id, func)}}{Parent has been collapsed.}
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\twocolitem{{\bf EVT\_TREE\_ITEM\_COLLAPSING(id, func)}}{Parent is being collapsed. This can be prevented by calling \helpref{Veto()}{wxnotifyeventveto}.}
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\twocolitem{{\bf EVT\_TREE\_ITEM\_EXPANDED(id, func)}}{Parent has been expanded.}
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\twocolitem{{\bf EVT\_TREE\_ITEM\_EXPANDING(id, func)}}{Parent is being expanded. This can be prevented by calling \helpref{Veto()}{wxnotifyeventveto}.}
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\twocolitem{{\bf EVT\_TREE\_SEL\_CHANGED(id, func)}}{Selection has changed.}
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\twocolitem{{\bf EVT\_TREE\_SEL\_CHANGING(id, func)}}{Selection is changing. This can be prevented by calling \helpref{Veto()}{wxnotifyeventveto}.}
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\twocolitem{{\bf EVT\_TREE\_KEY\_DOWN(id, func)}}{A key has been pressed.}
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\end{twocollist}%
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\wxheading{See also}
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\helpref{wxTreeItemData}{wxtreeitemdata}, \helpref{wxTreeCtrl overview}{wxtreectrloverview}, \helpref{wxListBox}{wxlistbox}, \helpref{wxListCtrl}{wxlistctrl},\rtfsp
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\helpref{wxImageList}{wximagelist}, \helpref{wxTreeEvent}{wxtreeevent}
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\wxheading{Win32 notes}
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wxTreeCtrl class uses the standard common treeview control under Win32
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implemented in the system library {\tt comctl32.dll}. Some versions of this
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library are known to have bugs with handling the tree control colours: the
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usual symptom is that the expanded items leave black (or otherwise incorrectly
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coloured) background behind them, especially for the controls using non
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default background colour. The recommended solution is to upgrade the {\tt comctl32.dll}
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to a newer version: see
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\urlref{http://www.microsoft.com/msdownload/ieplatform/ie/comctrlx86.asp}{http://www.microsoft.com/msdownload/ieplatform/ie/comctrlx86.asp}.
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\latexignore{\rtfignore{\wxheading{Members}}}
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\membersection{wxTreeCtrl::wxTreeCtrl}\label{wxtreectrlconstr}
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\func{}{wxTreeCtrl}{\void}
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Default constructor.
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\func{}{wxTreeCtrl}{\param{wxWindow*}{ parent}, \param{wxWindowID}{ id},\rtfsp
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\param{const wxPoint\&}{ pos = wxDefaultPosition}, \param{const wxSize\&}{ size = wxDefaultSize},\rtfsp
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\param{long}{ style = wxTR\_HAS\_BUTTONS}, \param{const wxValidator\& }{validator = wxDefaultValidator}, \param{const wxString\& }{name = ``listCtrl"}}
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Constructor, creating and showing a tree control.
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\wxheading{Parameters}
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\docparam{parent}{Parent window. Must not be NULL.}
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\docparam{id}{Window identifier. A value of -1 indicates a default value.}
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\docparam{pos}{Window position.}
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\docparam{size}{Window size. If the default size (-1, -1) is specified then the window is sized
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appropriately.}
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\docparam{style}{Window style. See \helpref{wxTreeCtrl}{wxtreectrl}.}
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\docparam{validator}{Window validator.}
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\docparam{name}{Window name.}
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\wxheading{See also}
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\helpref{wxTreeCtrl::Create}{wxtreectrlcreate}, \helpref{wxValidator}{wxvalidator}
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\membersection{wxTreeCtrl::\destruct{wxTreeCtrl}}
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\func{void}{\destruct{wxTreeCtrl}}{\void}
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Destructor, destroying the list control.
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\membersection{wxTreeCtrl::AddRoot}\label{wxtreectrladdroot}
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\func{wxTreeItemId}{AddRoot}{\param{const wxString\&}{ text},
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\param{int}{ image = -1}, \param{int}{ selImage = -1}, \param{wxTreeItemData*}{ data = NULL}}
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Adds the root node to the tree, returning the new item.
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If {\it image} > -1 and {\it selImage} is -1, the same image is used for
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both selected and unselected items.
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\membersection{wxTreeCtrl::AppendItem}\label{wxtreectrlappenditem}
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\func{wxTreeItemId}{AppendItem}{\param{const wxTreeItemId\& }{parent}, \param{const wxString\&}{ text},
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\param{int}{ image = -1}, \param{int}{ selImage = -1}, \param{wxTreeItemData*}{ data = NULL}}
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Appends an item to the end of the branch identified by {\it parent}, return a new item id.
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If {\it image} > -1 and {\it selImage} is -1, the same image is used for
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both selected and unselected items.
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\membersection{wxTreeCtrl::Collapse}\label{wxtreectrlcollapse}
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\func{void}{Collapse}{\param{const wxTreeItemId\&}{ item}}
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Collapses the given item.
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\membersection{wxTreeCtrl::CollapseAndReset}\label{wxtreectrlcollapseandreset}
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\func{void}{CollapseAndReset}{\param{const wxTreeItemId\&}{ item}}
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Collapses the given item and removes all children.
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\membersection{wxTreeCtrl::Create}\label{wxtreectrlcreate}
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\func{bool}{wxTreeCtrl}{\param{wxWindow*}{ parent}, \param{wxWindowID}{ id},\rtfsp
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\param{const wxPoint\&}{ pos = wxDefaultPosition}, \param{const wxSize\&}{ size = wxDefaultSize},\rtfsp
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\param{long}{ style = wxTR\_HAS\_BUTTONS}, \param{const wxValidator\& }{validator = wxDefaultValidator}, \param{const wxString\& }{name = ``listCtrl"}}
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Creates the tree control. See \helpref{wxTreeCtrl::wxTreeCtrl}{wxtreectrlconstr} for further details.
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\membersection{wxTreeCtrl::Delete}\label{wxtreectrldelete}
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\func{void}{Delete}{\param{const wxTreeItemId\&}{ item}}
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Deletes the specified item.
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\membersection{wxTreeCtrl::DeleteAllItems}\label{wxtreectrldeleteallitems}
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\func{void}{DeleteAllItems}{\void}
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Deletes all the items in the control.
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\membersection{wxTreeCtrl::EditLabel}\label{wxtreectrleditlabel}
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\func{void}{EditLabel}{\param{const wxTreeItemId\&}{ item}}
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Starts editing the label of the given item. This function generates a
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EVT\_TREE\_BEGIN\_LABEL\_EDIT event which can be vetoed so that no
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text control will appear for in-place editing.
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If the user changed the label (i.e. s/he does not press ESC or leave
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the text control without changes, a EVT\_TREE\_END\_LABEL\_EDIT event
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will be sent which can be vetoed as well.
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\wxheading{See also}
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\helpref{wxTreeCtrl::EndEditLabel}{wxtreectrlendeditlabel},
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\helpref{wxTreeEvent}{wxtreeevent}
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\membersection{wxTreeCtrl::EndEditLabel}\label{wxtreectrlendeditlabel}
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\func{void}{EndEditLabel}{\param{bool }{cancelEdit}}
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Ends label editing. If {\it cancelEdit} is TRUE, the edit will be cancelled.
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This function is currently supported under Windows only.
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\wxheading{See also}
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\helpref{wxTreeCtrl::EditLabel}{wxtreectrleditlabel}
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\membersection{wxTreeCtrl::EnsureVisible}\label{wxtreectrlensurevisible}
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\func{void}{EnsureVisible}{\param{const wxTreeItemId\&}{ item}}
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Scrolls and/or expands items to ensure that the given item is visible.
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\membersection{wxTreeCtrl::Expand}\label{wxtreectrlexpand}
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\func{void}{Expand}{\param{const wxTreeItemId\&}{ item}}
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Expands the given item.
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\membersection{wxTreeCtrl::GetBoundingRect}\label{wxtreectrlgetitemrect}
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\constfunc{bool}{GetBoundingRect}{\param{const wxTreeItemId\&}{ item}, \param{wxRect\& }{rect}, \param{bool }{textOnly = FALSE}}
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Retrieves the rectangle bounding the {\it item}. If {\it textOnly} is TRUE,
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only the rectangle around the items label will be returned, otherwise the
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items image is also taken into account.
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The return value is TRUE if the rectangle was successfully retrieved or FALSE
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if it was not (in this case {\it rect} is not changed) - for example, if the
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item is currently invisible.
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\pythonnote{The wxPython version of this method requires only the
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{\tt item} and {\tt textOnly} parameters. The return value is either a
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{\tt wxRect} object or {\tt None}.}
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\membersection{wxTreeCtrl::GetChildrenCount}\label{wxtreectrlgetchildrencount}
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\constfunc{size\_t}{GetChildrenCount}{\param{const wxTreeItemId\&}{ item}, \param{bool}{ recursively = TRUE}}
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Returns the number of items in the branch. If {\it recursively} is TRUE, returns the total number
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of descendants, otherwise only one level of children is counted.
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\membersection{wxTreeCtrl::GetCount}\label{wxtreectrlgetcount}
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\constfunc{int}{GetCount}{\void}
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Returns the number of items in the control.
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\membersection{wxTreeCtrl::GetEditControl}\label{wxtreectrlgeteditcontrol}
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\constfunc{wxTextCtrl\&}{GetEditControl}{\void}
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Returns the edit control used to edit a label.
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\membersection{wxTreeCtrl::GetFirstChild}\label{wxtreectrlgetfirstchild}
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\constfunc{wxTreeItemId}{GetFirstChild}{\param{const wxTreeItemId\&}{ item}, \param{long\& }{cookie}}
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Returns the first child; call \helpref{wxTreeCtrl::GetNextChild}{wxtreectrlgetnextchild} for the next child.
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For this enumeration function you must pass in a `cookie' parameter
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which is opaque for the application but is necessary for the library
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to make these functions reentrant (i.e. allow more than one
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enumeration on one and the same object simultaneously). The cookie passed to
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GetFirstChild and GetNextChild should be the same.
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Returns an invalid tree item if there are no further children.
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\wxheading{See also}
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\helpref{wxTreeCtrl::GetNextChild}{wxtreectrlgetnextchild}
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\pythonnote{In wxPython the returned wxTreeItemId and the new cookie
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value are both returned as a tuple containing the two values.}
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\membersection{wxTreeCtrl::GetFirstVisibleItem}\label{wxtreectrlgetfirstvisibleitem}
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\constfunc{wxTreeItemId}{GetFirstVisibleItem}{\void}
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Returns the first visible item.
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\membersection{wxTreeCtrl::GetImageList}\label{wxtreectrlgetimagelist}
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\constfunc{wxImageList*}{GetImageList}{\void}
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Returns the normal image list.
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\membersection{wxTreeCtrl::GetIndent}\label{wxtreectrlgetindent}
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\constfunc{int}{GetIndent}{\void}
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Returns the current tree control indentation.
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\membersection{wxTreeCtrl::GetItemData}\label{wxtreectrlgetitemdata}
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\constfunc{wxTreeItemData*}{GetItemData}{\param{const wxTreeItemId\&}{ item}}
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Returns the tree item data associated with the item.
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\wxheading{See also}
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\helpref{wxTreeItemData}{wxtreeitemdata}
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\pythonnote{wxPython provides the following shortcut method:
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\indented{2cm}{\begin{twocollist}\itemsep=0pt
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\twocolitem{{\bf GetPyData(item)}}{Returns the Python Object
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associated with the wxTreeItemData for the given item Id.}
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\end{twocollist}}
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}
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\membersection{wxTreeCtrl::GetItemImage}\label{wxtreectrlgetitemimage}
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\constfunc{int}{GetItemImage}{\param{const wxTreeItemId\& }{item},
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\param{wxTreeItemIcon }{which = wxTreeItemIcon\_Normal}}
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Gets the specified item image. The value of {\it which} may be:
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\begin{itemize}\itemsep=0pt
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\item{wxTreeItemIcon\_Normal} to get the normal item image
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\item{wxTreeItemIcon\_Selected} to get the selected item image (i.e. the image
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which is shown when the item is currently selected)
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\item{wxTreeItemIcon\_Expanded} to get the expanded image (this only
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makes sense for items which have children - then this image is shown when the
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item is expanded and the normal image is shown when it is collapsed)
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\item{wxTreeItemIcon\_SelectedExpanded} to get the selected expanded image
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(which is shown when an expanded item is currently selected)
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\end{itemize}
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\membersection{wxTreeCtrl::GetItemText}\label{wxtreectrlgetitemtext}
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\constfunc{wxString}{GetItemText}{\param{const wxTreeItemId\&}{ item}}
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Returns the item label.
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\membersection{wxTreeCtrl::GetLastChild}\label{wxtreectrlgetlastchild}
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\constfunc{wxTreeItemId}{GetLastChild}{\param{const wxTreeItemId\&}{ item}}
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Returns the last child of the item (or an invalid tree item if this item has no children).
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\wxheading{See also}
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\helpref{GetFirstChild}{wxtreectrlgetfirstchild},
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\helpref{GetLastChild}{wxtreectrlgetlastchild}
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\membersection{wxTreeCtrl::GetNextChild}\label{wxtreectrlgetnextchild}
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\constfunc{wxTreeItemId}{GetNextChild}{\param{const wxTreeItemId\&}{ item}, \param{long\& }{cookie}}
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Returns the next child; call \helpref{wxTreeCtrl::GetFirstChild}{wxtreectrlgetfirstchild} for the first child.
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For this enumeration function you must pass in a `cookie' parameter
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which is opaque for the application but is necessary for the library
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to make these functions reentrant (i.e. allow more than one
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enumeration on one and the same object simultaneously). The cookie passed to
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GetFirstChild and GetNextChild should be the same.
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Returns an invalid tree item if there are no further children.
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\wxheading{See also}
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\helpref{wxTreeCtrl::GetFirstChild}{wxtreectrlgetfirstchild}
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\pythonnote{In wxPython the returned wxTreeItemId and the new cookie
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value are both returned as a tuple containing the two values.}
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\membersection{wxTreeCtrl::GetNextSibling}\label{wxtreectrlgetnextsibling}
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\constfunc{wxTreeItemId}{GetNextSibling}{\param{const wxTreeItemId\&}{ item}}
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Returns the next sibling of the specified item; call \helpref{wxTreeCtrl::GetPrevSibling}{wxtreectrlgetprevsibling} for the previous sibling.
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Returns an invalid tree item if there are no further siblings.
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\wxheading{See also}
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\helpref{wxTreeCtrl::GetPrevSibling}{wxtreectrlgetprevsibling}
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\membersection{wxTreeCtrl::GetNextVisible}\label{wxtreectrlgetnextvisible}
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\constfunc{wxTreeItemId}{GetNextVisible}{\param{const wxTreeItemId\&}{ item}}
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Returns the next visible item.
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\membersection{wxTreeCtrl::GetParent}\label{wxtreectrlgetparent}
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\constfunc{wxTreeItemId}{GetParent}{\param{const wxTreeItemId\&}{ item}}
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Returns the item's parent.
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\pythonnote{This method is named {\tt GetItemParent} to avoid a name
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clash with wxWindow::GetParent.}
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\membersection{wxTreeCtrl::GetPrevSibling}\label{wxtreectrlgetprevsibling}
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\constfunc{wxTreeItemId}{GetPrevSibling}{\param{const wxTreeItemId\&}{ item}}
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Returns the previous sibling of the specified item; call \helpref{wxTreeCtrl::GetNextSibling}{wxtreectrlgetnextsibling} for the next sibling.
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Returns an invalid tree item if there are no further children.
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\wxheading{See also}
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\helpref{wxTreeCtrl::GetNextSibling}{wxtreectrlgetnextsibling}
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\membersection{wxTreeCtrl::GetPrevVisible}\label{wxtreectrlgetprevvisible}
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\constfunc{wxTreeItemId}{GetPrevVisible}{\param{const wxTreeItemId\&}{ item}}
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Returns the previous visible item.
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\membersection{wxTreeCtrl::GetRootItem}\label{wxtreectrlgetrootitem}
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\constfunc{wxTreeItemId}{GetRootItem}{\void}
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Returns the root item for the tree control.
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\membersection{wxTreeCtrl::GetItemSelectedImage}\label{wxtreectrlgetitemselectedimage}
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\constfunc{int}{GetItemSelectedImage}{\param{const wxTreeItemId\& }{item}}
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Gets the selected item image (this function is obsolete, use
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{\tt GetItemImage(item, wxTreeItemIcon\_Selected}) instead).
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\membersection{wxTreeCtrl::GetSelection}\label{wxtreectrlgetselection}
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\constfunc{wxTreeItemId}{GetSelection}{\void}
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Returns the selection, or an invalid item if there is no selection.
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This function only works with the controls without wxTR\_MULTIPLE style, use
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\helpref{GetSelections}{wxtreectrlgetselections} for the controls which do have
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this style.
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\membersection{wxTreeCtrl::GetSelections}\label{wxtreectrlgetselections}
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\constfunc{size\_t}{GetSelections}{\param{wxArrayTreeItemIds\& }{selection}}
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Fills the array of tree items passed in with the currently selected items. This
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function can be called only if the control has the wxTR\_MULTIPLE style.
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Returns the number of selected items.
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\pythonnote{The wxPython version of this method accepts no parameters
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and returns a Python list of {\tt wxTreeItemId}s.}
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\membersection{wxTreeCtrl::GetStateImageList}\label{wxtreectrlgetstateimagelist}
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\constfunc{wxImageList*}{GetStateImageList}{\void}
|
|
|
|
Returns the state image list (from which application-defined state images are taken).
|
|
|
|
\membersection{wxTreeCtrl::HitTest}\label{wxtreectrlhittest}
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|
|
|
\func{wxTreeItemId}{HitTest}{\param{const wxPoint\& }{point}, \param{int\& }{flags}}
|
|
|
|
Calculates which (if any) item is under the given point, returning the tree item
|
|
id at this point plus extra information {\it flags}. {\it flags} is a bitlist of the following:
|
|
|
|
\twocolwidtha{5cm}
|
|
\begin{twocollist}\itemsep=0pt
|
|
\twocolitem{wxTREE\_HITTEST\_ABOVE}{Above the client area.}
|
|
\twocolitem{wxTREE\_HITTEST\_BELOW}{Below the client area.}
|
|
\twocolitem{wxTREE\_HITTEST\_NOWHERE}{In the client area but below the last item.}
|
|
\twocolitem{wxTREE\_HITTEST\_ONITEMBUTTON}{On the button associated with an item.}
|
|
\twocolitem{wxTREE\_HITTEST\_ONITEMICON}{On the bitmap associated with an item.}
|
|
\twocolitem{wxTREE\_HITTEST\_ONITEMINDENT}{In the indentation associated with an item.}
|
|
\twocolitem{wxTREE\_HITTEST\_ONITEMLABEL}{On the label (string) associated with an item.}
|
|
\twocolitem{wxTREE\_HITTEST\_ONITEMRIGHT}{In the area to the right of an item.}
|
|
\twocolitem{wxTREE\_HITTEST\_ONITEMSTATEICON}{On the state icon for a tree view item that is in a user-defined state.}
|
|
\twocolitem{wxTREE\_HITTEST\_TOLEFT}{To the right of the client area.}
|
|
\twocolitem{wxTREE\_HITTEST\_TORIGHT}{To the left of the client area.}
|
|
\end{twocollist}
|
|
|
|
\pythonnote{in wxPython both the wxTreeItemId and the flags are
|
|
returned as a tuple.}
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|
|
|
\membersection{wxTreeCtrl::InsertItem}\label{wxtreectrlinsertitem}
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|
|
|
\func{wxTreeItemId}{InsertItem}{\param{const wxTreeItemId\& }{parent}, \param{const wxTreeItemId\& }{previous}, \param{const wxString\&}{ text},
|
|
\param{int}{ image = -1}, \param{int}{ selImage = -1}, \param{wxTreeItemData*}{ data = NULL}}
|
|
|
|
\func{wxTreeItemId}{InsertItem}{\param{const wxTreeItemId\& }{parent}, \param{size\_t}{ before}, \param{const wxString\&}{ text},
|
|
\param{int}{ image = -1}, \param{int}{ selImage = -1}, \param{wxTreeItemData*}{ data = NULL}}
|
|
|
|
Inserts an item after a given one ({\it previous}) or before one identified by its position ({\it before}).
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|
|
|
If {\it image} > -1 and {\it selImage} is -1, the same image is used for
|
|
both selected and unselected items.
|
|
|
|
\pythonnote{The second form of this method is called
|
|
\tt{InsertItemBefore} in wxPython.}
|
|
|
|
\membersection{wxTreeCtrl::IsBold}\label{wxtreectrlisbold}
|
|
|
|
\constfunc{bool}{IsBold}{\param{const wxTreeItemId\& }{item}}
|
|
|
|
Returns TRUE if the given item is in bold state.
|
|
|
|
See also: \helpref{SetItemBold}{wxtreectrlsetitembold}
|
|
|
|
\membersection{wxTreeCtrl::IsExpanded}\label{wxtreectrlisexpanded}
|
|
|
|
\constfunc{bool}{IsExpanded}{\param{const wxTreeItemId\&}{ item}}
|
|
|
|
Returns TRUE if the item is expanded (only makes sense if it has children).
|
|
|
|
\membersection{wxTreeCtrl::IsSelected}\label{wxtreectrlisselected}
|
|
|
|
\constfunc{bool}{IsSelected}{\param{const wxTreeItemId\&}{ item}}
|
|
|
|
Returns TRUE if the item is selected.
|
|
|
|
\membersection{wxTreeCtrl::IsVisible}\label{wxtreectrlisvisible}
|
|
|
|
\constfunc{bool}{IsVisible}{\param{const wxTreeItemId\&}{ item}}
|
|
|
|
Returns TRUE if the item is visible (it might be outside the view, or not expanded).
|
|
|
|
\membersection{wxTreeCtrl::ItemHasChildren}\label{wxtreectrlitemhaschildren}
|
|
|
|
\constfunc{bool}{ItemHasChildren}{\param{const wxTreeItemId\&}{ item}}
|
|
|
|
Returns TRUE if the item has children.
|
|
|
|
\membersection{wxTreeCtrl::OnCompareItems}\label{wxtreectrloncompareitems}
|
|
|
|
\func{int}{OnCompareItems}{\param{const wxTreeItemId\& }{item1}, \param{const wxTreeItemId\& }{item2}}
|
|
|
|
Override this function in the derived class to change the sort order of the
|
|
items in the tree control. The function should return a negative, zero or
|
|
positive value if the first item is less than, equal to or greater than the
|
|
second one.
|
|
|
|
The base class version compares items alphabetically.
|
|
|
|
See also: \helpref{SortChildren}{wxtreectrlsortchildren}
|
|
|
|
\membersection{wxTreeCtrl::PrependItem}\label{wxtreectrlprependitem}
|
|
|
|
\func{wxTreeItemId}{PrependItem}{\param{const wxTreeItemId\& }{parent}, \param{const wxString\&}{ text},
|
|
\param{int}{ image = -1}, \param{int}{ selImage = -1}, \param{wxTreeItemData*}{ data = NULL}}
|
|
|
|
Appends an item as the first child of {\it parent}, return a new item id.
|
|
|
|
If {\it image} > -1 and {\it selImage} is -1, the same image is used for
|
|
both selected and unselected items.
|
|
|
|
\membersection{wxTreeCtrl::ScrollTo}\label{wxtreectrlscrollto}
|
|
|
|
\func{void}{ScrollTo}{\param{const wxTreeItemId\&}{ item}}
|
|
|
|
Scrolls the specified item into view.
|
|
|
|
\membersection{wxTreeCtrl::SelectItem}\label{wxtreectrlselectitem}
|
|
|
|
\func{bool}{SelectItem}{\param{const wxTreeItemId\&}{ item}}
|
|
|
|
Selects the given item.
|
|
|
|
\membersection{wxTreeCtrl::SetIndent}\label{wxtreectrlsetindent}
|
|
|
|
\func{void}{SetIndent}{\param{int }{indent}}
|
|
|
|
Sets the indentation for the tree control.
|
|
|
|
\membersection{wxTreeCtrl::SetImageList}\label{wxtreectrlsetimagelist}
|
|
|
|
\func{void}{SetImageList}{\param{wxImageList*}{ imageList}}
|
|
|
|
Sets the normal image list.
|
|
|
|
\membersection{wxTreeCtrl::SetItemBackgroundColour}\label{wxtreectrlsetitembackgroundcolour}
|
|
|
|
\func{void}{SetItemBackgroundColour}{\param{const wxTreeItemId\&}{ item}, \param{const wxColour\& }{col}}
|
|
|
|
Sets the colour of the items background.
|
|
|
|
\membersection{wxTreeCtrl::SetItemBold}\label{wxtreectrlsetitembold}
|
|
|
|
\func{void}{SetItemBold}{\param{const wxTreeItemId\& }{item}, \param{bool}{ bold = TRUE}}
|
|
|
|
Makes item appear in bold font if {\it bold} parameter is TRUE or resets it to
|
|
the normal state.
|
|
|
|
See also: \helpref{IsBold}{wxtreectrlisbold}
|
|
|
|
\membersection{wxTreeCtrl::SetItemData}\label{wxtreectrlsetitemdata}
|
|
|
|
\func{void}{SetItemData}{\param{const wxTreeItemId\&}{ item}, \param{wxTreeItemData* }{data}}
|
|
|
|
Sets the item client data.
|
|
|
|
\pythonnote{wxPython provides the following shortcut method:\par
|
|
\indented{2cm}{\begin{twocollist}\itemsep=0pt
|
|
\twocolitem{{\bf SetPyData(item, obj)}}{Associate the given Python
|
|
Object with the wxTreeItemData for the given item Id.}
|
|
\end{twocollist}}
|
|
}
|
|
|
|
\membersection{wxTreeCtrl::SetItemFont}\label{wxtreectrlsetitemfont}
|
|
|
|
\func{void}{SetItemFont}{\param{const wxTreeItemId\&}{ item}, \param{const wxFont\& }{font}}
|
|
|
|
Sets the items font. All items in the tree should have the same height to avoid
|
|
text clipping, so the fonts height should be the same for all of them,
|
|
although font attributes may vary.
|
|
|
|
\wxheading{See also}
|
|
|
|
\helpref{SetItemBold}{wxtreectrlsetitembold}
|
|
|
|
\membersection{wxTreeCtrl::SetItemHasChildren}\label{wxtreectrlsetitemhaschildren}
|
|
|
|
\func{void}{SetItemHasChildren}{\param{const wxTreeItemId\&}{ item}, \param{bool }{hasChildren = TRUE}}
|
|
|
|
Force appearance of the button next to the item. This is useful to
|
|
allow the user to expand the items which don't have any children now,
|
|
but instead adding them only when needed, thus minimizing memory
|
|
usage and loading time.
|
|
|
|
\membersection{wxTreeCtrl::SetItemImage}\label{wxtreectrlsetitemimage}
|
|
|
|
\func{void}{SetItemImage}{\param{const wxTreeItemId\&}{ item},
|
|
\param{int }{image}, \param{wxTreeItemIcon }{which = wxTreeItemIcon\_Normal}}
|
|
|
|
Sets the specified item image. See \helpref{GetItemImage}{wxtreectrlgetitemimage}
|
|
for the description of the {\it which} parameter.
|
|
|
|
\membersection{wxTreeCtrl::SetItemSelectedImage}\label{wxtreectrlsetitemselectedimage}
|
|
|
|
\func{void}{SetItemSelectedImage}{\param{const wxTreeItemId\&}{ item}, \param{int }{selImage}}
|
|
|
|
Sets the selected item image (this function is obsolete, use {\tt SetItemImage(item, wxTreeItemIcon\_Selected}) instead).
|
|
|
|
\membersection{wxTreeCtrl::SetItemText}\label{wxtreectrlsetitemtext}
|
|
|
|
\func{void}{SetItemText}{\param{const wxTreeItemId\&}{ item}, \param{const wxString\& }{text}}
|
|
|
|
Sets the item label.
|
|
|
|
\membersection{wxTreeCtrl::SetItemTextColour}\label{wxtreectrlsetitemtextcolour}
|
|
|
|
\func{void}{SetItemTextColour}{\param{const wxTreeItemId\&}{ item}, \param{const wxColour\& }{col}}
|
|
|
|
Sets the colour of the items text.
|
|
|
|
\membersection{wxTreeCtrl::SetStateImageList}\label{wxtreectrlsetstateimagelist}
|
|
|
|
\func{void}{SetStateImageList}{\param{wxImageList*}{ imageList}}
|
|
|
|
Sets the state image list (from which application-defined state images are taken).
|
|
|
|
\membersection{wxTreeCtrl::SortChildren}\label{wxtreectrlsortchildren}
|
|
|
|
\func{void}{SortChildren}{\param{const wxTreeItemId\&}{ item}}
|
|
|
|
Sorts the children of the given item using
|
|
\helpref{OnCompareItems}{wxtreectrloncompareitems} method of wxTreeCtrl. You
|
|
should override that method to change the sort order (the default is ascending
|
|
alphabetical order).
|
|
|
|
\wxheading{See also}
|
|
|
|
\helpref{wxTreeItemData}{wxtreeitemdata}, \helpref{OnCompareItems}{wxtreectrloncompareitems}
|
|
|
|
\membersection{wxTreeCtrl::Toggle}\label{wxtreectrltoggle}
|
|
|
|
\func{void}{Toggle}{\param{const wxTreeItemId\&}{ item}}
|
|
|
|
Toggles the given item between collapsed and expanded states.
|
|
|
|
\membersection{wxTreeCtrl::Unselect}\label{wxtreectrlunselect}
|
|
|
|
\func{void}{Unselect}{\void}
|
|
|
|
Removes the selection from the currently selected item (if any).
|
|
|
|
\membersection{wxTreeCtrl::UnselectAll}\label{wxtreectrlunselectall}
|
|
|
|
\func{void}{UnselectAll}{\void}
|
|
|
|
This function either behaves the same as \helpref{Unselect}{wxtreectrlunselect}
|
|
if the control doesn't have wxTR\_MULTIPLE style, or removes the selection from
|
|
all items if it does have this style.
|
|
|
|
\section{\class{wxTreeItemData}}\label{wxtreeitemdata}
|
|
|
|
wxTreeItemData is some (arbitrary) user class associated with some item. The
|
|
main advantage of having this class (compared to the old untyped interface) is
|
|
that wxTreeItemData's are destroyed automatically by the tree and, as this
|
|
class has virtual dtor, it means that the memory will be automatically
|
|
freed. We don't just use wxObject instead of wxTreeItemData because
|
|
the size of this class is critical: in any real application, each tree leaf
|
|
will have wxTreeItemData associated with it and number of leaves may be
|
|
quite big.
|
|
|
|
Because the objects of this class are deleted by the tree, they should
|
|
always be allocated on the heap.
|
|
|
|
\wxheading{Derived from}
|
|
|
|
wxTreeItemId
|
|
|
|
\wxheading{Include files}
|
|
|
|
<wx/treectrl.h>
|
|
|
|
\wxheading{See also}
|
|
|
|
\helpref{wxTreeCtrl}{wxtreectrl}
|
|
|
|
\latexignore{\rtfignore{\wxheading{Members}}}
|
|
|
|
\membersection{wxTreeItemData::wxTreeItemData}\label{wxtreeitemdataconstr}
|
|
|
|
\func{}{wxTreeItemData}{\void}
|
|
|
|
Default constructor.
|
|
|
|
\pythonnote{The wxPython version of this constructor optionally
|
|
accepts any Python object as a parameter. This object is then
|
|
associated with the tree item using the wxTreeItemData as a
|
|
container.
|
|
|
|
In addition, the following methods are added in wxPython for accessing
|
|
the object:
|
|
|
|
\indented{2cm}{\begin{twocollist}\itemsep=0pt
|
|
\twocolitem{{\bf GetData()}}{Returns a reference to the Python Object}
|
|
\twocolitem{{\bf SetData(obj)}}{Associates a new Python Object with the
|
|
wxTreeItemData}
|
|
\end{twocollist}}
|
|
}
|
|
|
|
|
|
\membersection{wxTreeItemData::\destruct{wxTreeItemData}}
|
|
|
|
\func{void}{\destruct{wxTreeItemData}}{\void}
|
|
|
|
Virtual destructor.
|
|
|
|
\membersection{wxTreeItemData::GetId}\label{wxtreeitemdatagetid}
|
|
|
|
\func{const wxTreeItem\&}{GetId}{\void}
|
|
|
|
Returns the item associated with this node.
|
|
|
|
\membersection{wxTreeItemData::SetId}\label{wxtreeitemdatasetid}
|
|
|
|
\func{void}{SetId}{\param{const wxTreeItemId\&}{ id}}
|
|
|
|
Sets the item associated with this node.
|
|
|