a temporary hack to make testing wxTLW/Univ easier

[wxWidgets.git] / docs / latex / wx / listctrl.tex

diff --git a/docs/latex/wx/listctrl.tex b/docs/latex/wx/listctrl.tex
index 87c08b307746e5a19ce09b3ae3f479b224458f84..f3c0c9b79b9c7a29b3dcd5e36bc91d98ed3531c6 100644 (file)
--- a/docs/latex/wx/listctrl.tex
+++ b/docs/latex/wx/listctrl.tex
@@ -2,8 +2,21 @@
 
 A list control presents lists in a number of formats: list view, report view,
 icon view and small icon view. In any case, elements are numbered from zero.
 
 A list control presents lists in a number of formats: list view, report view,
 icon view and small icon view. In any case, elements are numbered from zero.

-
-Using many of wxListCtrl is shown in the
+For all these modes, the items are stored in the control and must be added to
+it using \helpref{InsertItem}{wxlistctrlinsertitem} method.
+
+A special case of report view quite different from the other modes of the list
+control is a virtual control in which the items data (including text, images
+and attributes) is managed by the main program and is requested by the control
+itself only when needed which allows to have controls with millions of items
+without consuming much memory. To use virtual list control you must use 
+\helpref{SetItemCount}{wxlistctrlsetitemcount} first and overload at least 
+\helpref{OnGetItemText}{wxlistctrlongetitemtext} (and optionally 
+\helpref{OnGetItemImage}{wxlistctrlongetitemimage} and 
+\helpref{OnGetItemAttr}{wxlistctrlongetitemattr}) to return the information
+about the items when the control requests it.
+
+Using many of wxListCtrl features is shown in the

 \helpref{corresponding sample}{samplelistctrl}.
 
 To intercept events from a list control, use the event table macros described
 \helpref{corresponding sample}{samplelistctrl}.
 
 To intercept events from a list control, use the event table macros described


@@ -22,12 +35,13 @@ in \helpref{wxListEvent}{wxlistevent}.
 
 \wxheading{Window styles}
 
 
 \wxheading{Window styles}
 

-\twocolwidtha{5cm}
+\twocolwidtha{7cm}

 \begin{twocollist}\itemsep=0pt
 \twocolitem{\windowstyle{wxLC\_LIST}}{multicolumn list view, with optional small icons.
 Columns are computed automatically, i.e. you don't set columns as in wxLC\_REPORT. In other words,
 the list wraps, unlike a wxListBox.}
 \twocolitem{\windowstyle{wxLC\_REPORT}}{single or multicolumn report view, with optional header.}
 \begin{twocollist}\itemsep=0pt
 \twocolitem{\windowstyle{wxLC\_LIST}}{multicolumn list view, with optional small icons.
 Columns are computed automatically, i.e. you don't set columns as in wxLC\_REPORT. In other words,
 the list wraps, unlike a wxListBox.}
 \twocolitem{\windowstyle{wxLC\_REPORT}}{single or multicolumn report view, with optional header.}

+\twocolitem{\windowstyle{wxLC\_VIRTUAL}}{virtual control, may only be used with wxLC\_REPORT}

 \twocolitem{\windowstyle{wxLC\_ICON}}{Large icon view, with optional labels.}
 \twocolitem{\windowstyle{wxLC\_SMALL\_ICON}}{Small icon view, with optional labels.}
 \twocolitem{\windowstyle{wxLC\_ALIGN\_TOP}}{Icons align to the top. Win32 default, Win32 only. }
 \twocolitem{\windowstyle{wxLC\_ICON}}{Large icon view, with optional labels.}
 \twocolitem{\windowstyle{wxLC\_SMALL\_ICON}}{Small icon view, with optional labels.}
 \twocolitem{\windowstyle{wxLC\_ALIGN\_TOP}}{Icons align to the top. Win32 default, Win32 only. }


@@ -58,15 +72,20 @@ functions that take a \helpref{wxListEvent}{wxlistevent} argument.
 \twocolitem{{\bf EVT\_LIST\_END\_LABEL\_EDIT(id, func)}}{Finish editing a label. This can be prevented by calling \helpref{Veto()}{wxnotifyeventveto}.}
 \twocolitem{{\bf EVT\_LIST\_DELETE\_ITEM(id, func)}}{Delete an item.}
 \twocolitem{{\bf EVT\_LIST\_DELETE\_ALL\_ITEMS(id, func)}}{Delete all items.}
 \twocolitem{{\bf EVT\_LIST\_END\_LABEL\_EDIT(id, func)}}{Finish editing a label. This can be prevented by calling \helpref{Veto()}{wxnotifyeventveto}.}
 \twocolitem{{\bf EVT\_LIST\_DELETE\_ITEM(id, func)}}{Delete an item.}
 \twocolitem{{\bf EVT\_LIST\_DELETE\_ALL\_ITEMS(id, func)}}{Delete all items.}

-\twocolitem{{\bf EVT\_LIST\_GET\_INFO(id, func)}}{Request information from the application, usually the item text.}
-\twocolitem{{\bf EVT\_LIST\_SET\_INFO(id, func)}}{Information is being supplied (not implemented).}
+%\twocolitem{{\bf EVT\_LIST\_GET\_INFO(id, func)}}{Request information from the application, usually the item text.}
+%\twocolitem{{\bf EVT\_LIST\_SET\_INFO(id, func)}}{Information is being supplied (not implemented).}

 \twocolitem{{\bf EVT\_LIST\_ITEM\_SELECTED(id, func)}}{The item has been selected.}
 \twocolitem{{\bf EVT\_LIST\_ITEM\_DESELECTED(id, func)}}{The item has been deselected.}
 \twocolitem{{\bf EVT\_LIST\_ITEM\_ACTIVATED(id, func)}}{The item has been activated (ENTER or double click).}
 \twocolitem{{\bf EVT\_LIST\_ITEM\_SELECTED(id, func)}}{The item has been selected.}
 \twocolitem{{\bf EVT\_LIST\_ITEM\_DESELECTED(id, func)}}{The item has been deselected.}
 \twocolitem{{\bf EVT\_LIST\_ITEM\_ACTIVATED(id, func)}}{The item has been activated (ENTER or double click).}

+\twocolitem{{\bf EVT\_LIST\_ITEM\_RIGHT\_CLICK(id, func)}}{An item has been right-clicked.}

 \twocolitem{{\bf EVT\_LIST\_KEY\_DOWN(id, func)}}{A key has been pressed.}
 \twocolitem{{\bf EVT\_LIST\_INSERT\_ITEM(id, func)}}{An item has been inserted.}
 \twocolitem{{\bf EVT\_LIST\_COL\_CLICK(id, func)}}{A column ({\bf m\_col}) has been left-clicked.}
 \twocolitem{{\bf EVT\_LIST\_KEY\_DOWN(id, func)}}{A key has been pressed.}
 \twocolitem{{\bf EVT\_LIST\_INSERT\_ITEM(id, func)}}{An item has been inserted.}
 \twocolitem{{\bf EVT\_LIST\_COL\_CLICK(id, func)}}{A column ({\bf m\_col}) has been left-clicked.}

-\twocolitem{{\bf EVT\_LIST\_ITEM\_RIGHT\_CLICK(id, func)}}{An item has been right-clicked.}
+\twocolitem{{\bf EVT\_LIST\_COL\_RIGHT\_CLICK(id, func)}}{A column ({\bf m\_col}) has been right-clicked.}
+\twocolitem{{\bf EVT\_LIST\_COL\_BEGIN\_DRAG(id, func)}}{The user started resizing a column - can be vetoed.}
+\twocolitem{{\bf EVT\_LIST\_COL\_DRAGGING(id, func)}}{The divider between columns is being dragged.}
+\twocolitem{{\bf EVT\_LIST\_COL\_END\_DRAG(id, func)}}{A column has been resized by the user.}
+\twocolitem{{\bf EVT\_LIST\_CACHE\_HINT(id, func)}}{Prepare cache for a virtual list control}

 \end{twocollist}%
 
 \wxheading{See also}
 \end{twocollist}%
 
 \wxheading{See also}


@@ -527,6 +546,51 @@ method:\par
 \end{twocollist}
 }}
 
 \end{twocollist}
 }}
 

+\membersection{wxListCtrl::OnGetItemAttr}\label{wxlistctrlongetitemattr}
+
+\func{virtual wxString}{OnGetItemAttr}{\param{long }{item}}
+
+This function may be overloaded in the derived class for a control with 
+{\tt wxLC\_VIRTUAL} style. It should return the attribute for the
+for the specified {\tt item} or {\tt NULL} to use the default appearance
+parameters.
+
+The base class version always returns {\tt NULL}.
+
+\wxheading{See also}
+
+\helpref{OnGetItemImage}{wxlistctrlongetitemimage},\\
+\helpref{OnGetItemText}{wxlistctrlongetitemtext}
+
+\membersection{wxListCtrl::OnGetItemImage}\label{wxlistctrlongetitemimage}
+
+\func{virtual wxString}{OnGetItemImage}{\param{long }{item}}
+
+This function may be overloaded in the derived class for a control with 
+{\tt wxLC\_VIRTUAL} style. It should return the index of the items image in the
+controls image list or $-1$ for no image.
+
+The base class version always returns $-1$.
+
+\wxheading{See also}
+
+\helpref{OnGetItemText}{wxlistctrlongetitemtext},\\
+\helpref{OnGetItemAttr}{wxlistctrlongetitemattr}
+
+\membersection{wxListCtrl::OnGetItemText}\label{wxlistctrlongetitemtext}
+
+\func{virtual wxString}{OnGetItemText}{\param{long }{item}, \param{long }{column}}
+
+This function {\bf must} be overloaded in the derived class for a control with 
+{\tt wxLC\_VIRTUAL} style. It should return the string containing the text of
+the given {\it column} for the specified {\tt item}.
+
+\wxheading{See also}
+
+\helpref{SetItemCount}{wxlistctrlsetitemcount},\\
+\helpref{OnGetItemImage}{wxlistctrlongetitemimage},\\
+\helpref{OnGetItemAttr}{wxlistctrlongetitemattr}
+

 \membersection{wxListCtrl::ScrollList}\label{wxlistctrlscrolllist}
 
 \func{bool}{ScrollList}{\param{int }{dx}, \param{int }{dy}}
 \membersection{wxListCtrl::ScrollList}\label{wxlistctrlscrolllist}
 
 \func{bool}{ScrollList}{\param{int }{dx}, \param{int }{dy}}


@@ -646,6 +710,16 @@ string or image at a given location.}
 \end{twocollist}}
 }
 
 \end{twocollist}}
 }
 

+\membersection{wxListCtrl::SetItemCount}\label{wxlistctrlsetitemcount}
+
+\func{void}{SetItemCount}{\param{long }{count}}
+
+This method can only be used with virtual list controls. It is used to indicate
+to the control the number of items it contains. After calling it, the main
+program should be ready to handle calls to various item callbacks (such as
+\helpref{OnGetItemText}{wxlistctrlongetitemtext}) for all vitems in the range
+from $0$ to {\it count}.
+

 \membersection{wxListCtrl::SetItemData}\label{wxlistctrlsetitemdata}
 
 \func{bool}{SetItemData}{\param{long }{item}, \param{long }{data}}
 \membersection{wxListCtrl::SetItemData}\label{wxlistctrlsetitemdata}
 
 \func{bool}{SetItemData}{\param{long }{item}, \param{long }{data}}