X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c91108763b1621be54af24e24b2fab590db87325..80d2803f703d1b238f42725504f08266ef02defe:/docs/latex/wx/listctrl.tex?ds=sidebyside diff --git a/docs/latex/wx/listctrl.tex b/docs/latex/wx/listctrl.tex index ed9e3f49e0..a275fe865f 100644 --- a/docs/latex/wx/listctrl.tex +++ b/docs/latex/wx/listctrl.tex @@ -1,9 +1,13 @@ \section{\class{wxListCtrl}}\label{wxlistctrl} -A list control presents lists in a number of formats: list view, report view, icon view -and small icon view. 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. -To intercept events from a list control, use the event table macros described in \helpref{wxListEvent}{wxlistevent}. +Using many of wxListCtrl is shown in the +\helpref{corresponding sample}{samplelistctrl}. + +To intercept events from a list control, use the event table macros described +in \helpref{wxListEvent}{wxlistevent}. \wxheading{Derived from} @@ -35,6 +39,8 @@ the list wraps, unlike a wxListBox.} \twocolitem{\windowstyle{wxLC\_SINGLE\_SEL}}{Single selection.} \twocolitem{\windowstyle{wxLC\_SORT\_ASCENDING}}{Sort in ascending order (must still supply a comparison callback in SortItems.} \twocolitem{\windowstyle{wxLC\_SORT\_DESCENDING}}{Sort in descending order (must still supply a comparison callback in SortItems.} +\twocolitem{\windowstyle{wxLC\_HRULES}}{Draws light horizontal rules between rows in report mode.} +\twocolitem{\windowstyle{wxLC\_VRULES}}{Draws light vertical rules between columns in report mode.} \end{twocollist} See also \helpref{window styles overview}{windowstyles}. @@ -140,7 +146,7 @@ Deletes all items and all columns. \func{bool}{DeleteItem}{\param{long }{item}} -Deletes the specified item. This function sends the +Deletes the specified item. This function sends the {\tt wxEVT\_COMMAND\_LIST\_DELETE\_ITEM} event for the item being deleted. See also: \helpref{DeleteAllItems}{wxlistctrldeleteallitems} @@ -151,10 +157,9 @@ See also: \helpref{DeleteAllItems}{wxlistctrldeleteallitems} Deletes all the items in the list control. -{\bf NB:} This function does {\it not} send the +{\bf NB:} This function does {\it not} send the {\tt wxEVT\_COMMAND\_LIST\_DELETE\_ITEM} event because deleting many items -from the control would be too slow then (unlike - \helpref{DeleteItem}{wxlistctrldeleteitem}) +from the control would be too slow then (unlike \helpref{DeleteItem}{wxlistctrldeleteitem}). \membersection{wxListCtrl::DeleteColumn}\label{wxlistctrldeletecolumn} @@ -254,9 +259,12 @@ Returns the specified image list. {\it which} may be one of: Gets information about the item. See \helpref{wxListCtrl::SetItem}{wxlistctrlsetitem} for more information. +You must call {\it info.SetId()} to se ID of item you're interested in +before calling this method. + \pythonnote{The wxPython version of this method takes an integer parameter -for the item ID, and returns the wxListItem object. -} +for the item ID, an optional integer for the column number, and +returns the wxListItem object. } \membersection{wxListCtrl::GetItemData}\label{wxlistctrlgetitemdata} @@ -282,7 +290,7 @@ Returns the rectangle representing the item's size and position, in client coord {\it code} is one of wxLIST\_RECT\_BOUNDS, wxLIST\_RECT\_ICON, wxLIST\_RECT\_LABEL. \pythonnote{The wxPython version of this method accepts only the item -ID and returns the wxRect.} +ID and code and returns the wxRect.} \membersection{wxListCtrl::GetItemState}\label{wxlistctrlgetitemstate} @@ -316,10 +324,29 @@ Gets the item text for this item. \constfunc{long}{GetNextItem}{\param{long }{item}, \param{int }{geometry = wxLIST\_NEXT\_ALL}, \param{int }{state = wxLIST\_STATE\_DONTCARE}} -Searches for an item with the given goemetry or state, starting from {\it item}. {\it item} can be -1 -to find the first item that matches the specified flags. +Searches for an item with the given goemetry or state, starting from +{\it item} but excluding the {\it item} itself. If {\it item} is -1, +the first item that matches the specified flags will be returned. + +Returns the first item with given state following {\it item} or -1 if +no such item found. -Returns the item or -1 if unsuccessful. +This function may be used to find all selected items in the control like this: + +\begin{verbatim} + long item = -1; + for ( ;; ) + { + item = listctrl->GetNextItem(item, + wxLIST_NEXT_ALL, + wxLIST_STATE_SELECTED); + if ( item == -1 ) + break; + + // this item is selected - do whatever is needed with it + wxLogMessage("Item %ld is selected."), item); + } +\end{verbatim} {\it geometry} can be one of: @@ -332,6 +359,9 @@ Returns the item or -1 if unsuccessful. \twocolitem{wxLIST\_NEXT\_RIGHT}{Searches for an item to the right of the specified item.} \end{twocollist} +{\bf NB:} this parameters is only supported by wxMSW currently and ignored on +other platforms. + {\it state} can be a bitlist of the following: \twocolwidtha{5cm} @@ -385,7 +415,7 @@ wxLIST\_HITTEST\_ONITEMSTATEICON.} \end{twocollist} \pythonnote{A tuple of values is returned in the wxPython version of -thsi method. The first value is the item id and the second is the +this method. The first value is the item id and the second is the flags value mentioned above.} \membersection{wxListCtrl::InsertColumn}\label{wxlistctrlinsertcolumn} @@ -440,7 +470,7 @@ Insert an image/string item. \pythonnote{In place of a single overloaded method name, wxPython implements the following methods:\par -\indented{2cm}{\begin{twocollist} +\indented{2cm}{\begin{twocollist}\itemsep=0pt \twocolitem{{\bf InsertItem(item)}}{Inserts an item using a wxListItem.} \twocolitem{{\bf InsertStringItem(index, label)}}{Inserts a string item.} \twocolitem{{\bf InsertImageItem(index, imageIndex)}}{Inserts an image item.} @@ -496,6 +526,8 @@ wxIMAGE\_LIST\_NORMAL, wxIMAGE\_LIST\_SMALL, wxIMAGE\_LIST\_STATE (the last is u \func{bool}{SetItem}{\param{wxListItem\& }{info}} +\func{long}{SetItem}{\param{long }{index}, \param{int }{col}, \param{const }{wxString\& label}, \param{int }{imageId = -1}} + Sets information about the item. wxListItem is a class with the following members: @@ -557,7 +589,6 @@ string or image at a given location.} \end{twocollist}} } - \membersection{wxListCtrl::SetItemData}\label{wxlistctrlsetitemdata} \func{bool}{SetItemData}{\param{long }{item}, \param{long }{data}} @@ -611,21 +642,38 @@ Sets the whole window style. \membersection{wxListCtrl::SortItems}\label{wxlistctrlsortitems} -\func{bool}{SortItems}{\param{wxListCtrlCompare }{fn}, \param{long }{data}} +\func{bool}{SortItems}{\param{wxListCtrlCompare }{fnSortCallBack}, \param{long }{data}} + +Call this function to sort the items in the list control. Sorting is done +using the specified {\it fnSortCallBack} function. This function must have the +following prototype: -Sorts the items in the list control. +\begin{verbatim} +int wxCALLBACK wxListCompareFunction(long item1, long item2, long sortData) +\end{verbatim} + +It is called each time when the two items must be compared and should return 0 +if the items are equal, negative value if the first item is less than the +second one and positive value if the first one is greater than the second one +(the same convention as used by {\tt qsort(3)}). + +\wxheading{Parameters} -fn is a function which takes 3 long arguments: item1, item2, data. +\docparam{item1}{client data associated with the first item ({\bf NOT} the index).} -item1 is the long data associated with a first item (NOT the index). +\docparam{item2}{client data associated with the second item ({\bf NOT} the index).} -item2 is the long data associated with a second item (NOT the index). +\docparam{data}{the value passed to SortItems() itself.} -data is the same value as passed to SortItems. +Notice that the control may only be sorted on client data associated with the +items, so you {\bf must} use \helpref{SetItemData}{wxlistctrlsetitemdata} if +you want to be able to sort the items in the control. -The return value is a negative number if the first item should precede the second -item, a positive number of the second item should precede the first, -or zero if the two items are equivalent. +Please see the \helpref{listctrl sample}{samplelistctrl} for an example of +using this function. -data is arbitrary data to be passed to the sort function. +\pythonnote{wxPython uses the sortData parameter to pass the Python +function to call, so it is not available for programmer use. Call +SortItems with a reference to a callable object that expects two +parameters.}