X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b456d5715504112fe312a41dfc741d3a79003569..d82323930c8ce1b800f2213a598fbda79f868d1d:/docs/latex/wx/listctrl.tex diff --git a/docs/latex/wx/listctrl.tex b/docs/latex/wx/listctrl.tex index 677c69bf06..02eaefa92b 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} @@ -48,14 +52,15 @@ functions that take a \helpref{wxListEvent}{wxlistevent} argument. \begin{twocollist}\itemsep=0pt \twocolitem{{\bf EVT\_LIST\_BEGIN\_DRAG(id, func)}}{Begin dragging with the left mouse button.} \twocolitem{{\bf EVT\_LIST\_BEGIN\_RDRAG(id, func)}}{Begin dragging with the right mouse button.} -\twocolitem{{\bf EVT\_LIST\_BEGIN\_LABEL\_EDIT(id, func)}}{Begin editing a label.} -\twocolitem{{\bf EVT\_LIST\_END\_LABEL\_EDIT(id, func)}}{Finish editing a label.} +\twocolitem{{\bf EVT\_LIST\_BEGIN\_LABEL\_EDIT(id, func)}}{Begin editing a label. This can be prevented by calling \helpref{Veto()}{wxnotifyeventveto}.} +\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\_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\_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.} @@ -129,29 +134,48 @@ Arranges the items in icon or small icon view. This only has effect on Win32. {\ Creates the list control. See \helpref{wxListCtrl::wxListCtrl}{wxlistctrlconstr} for further details. +\membersection{wxListCtrl::ClearAll}\label{wxlistctrlclearall} + +\func{void}{ClearAll}{} + +Deletes all items and all columns. + \membersection{wxListCtrl::DeleteItem}\label{wxlistctrldeleteitem} \func{bool}{DeleteItem}{\param{long }{item}} -Deletes the specified item. +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} \membersection{wxListCtrl::DeleteAllItems}\label{wxlistctrldeleteallitems} -\func{bool}{DeleteAllItems}{\void} +\func{bool}{DeleteAllItems}{} Deletes all the items in the list control. +{\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}). + \membersection{wxListCtrl::DeleteColumn}\label{wxlistctrldeletecolumn} \func{bool}{DeleteColumn}{\param{int }{col}} Deletes a column. -\membersection{wxListCtrl::Edit}\label{wxlistctrledit} +\membersection{wxListCtrl::EditLabel}\label{wxlistctrledit} -\func{wxTextCtrl\&}{Edit}{\param{long }{item}} +\func{void}{EditLabel}{\param{long }{item}} -Starts editing a label. +Starts editing the label of the given item. This function generates a +EVT\_LIST\_BEGIN\_LABEL\_EDIT event which can be vetoed so that no +text control will appear for in-place editing. + +If the user changed the label (i.e. s/he does not press ESC or leave +the text control without changes, a EVT\_LIST\_END\_LABEL\_EDIT event +will be sent which can be vetoed as well. \membersection{wxListCtrl::EnsureVisible}\label{wxlistctrlensurevisible} @@ -179,9 +203,9 @@ the item after {\it start} or the beginning if {\it start} is -1. \pythonnote{In place of a single overloaded method name, wxPython implements the following methods:\par \indented{2cm}{\begin{twocollist} -\twocolitem{\bf{FindItem(start, str, partial=FALSE)}}{} -\twocolitem{\bf{FindItemData(start, data)}}{} -\twocolitem{\bf{FindItemAtPos(start, point, direction)}}{} +\twocolitem{{\bf FindItem(start, str, partial=FALSE)}}{} +\twocolitem{{\bf FindItemData(start, data)}}{} +\twocolitem{{\bf FindItemAtPos(start, point, direction)}}{} \end{twocollist}} } @@ -233,9 +257,12 @@ Returns the specified image list. {\it which} may be one of: Gets information about the item. See \helpref{wxListCtrl::SetItem}{wxlistctrlsetitem} for more information. -\pythonnote{The wxPython version of this method takes a parameter -representing the item ID, and returns the wxListItem object. -} +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, an optional integer for the column number, and +returns the wxListItem object. } \membersection{wxListCtrl::GetItemData}\label{wxlistctrlgetitemdata} @@ -261,7 +288,7 @@ 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} @@ -295,10 +322,29 @@ 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. + +This function may be used to find all selected items in the control like this: -Returns the item or -1 if unsuccessful. +\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: @@ -311,6 +357,9 @@ 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} @@ -363,6 +412,10 @@ giving details in {\it flags}. {\it flags} will be a combination of the followin wxLIST\_HITTEST\_ONITEMSTATEICON.} \end{twocollist} +\pythonnote{A tuple of values is returned in the wxPython version of +this method. The first value is the item id and the second is the +flags value mentioned above.} + \membersection{wxListCtrl::InsertColumn}\label{wxlistctrlinsertcolumn} \func{long}{InsertColumn}{\param{long }{col}, \param{wxListItem\& }{info}} @@ -377,9 +430,9 @@ For list view mode (only), inserts a column. For more details, see \helpref{wxLi \pythonnote{In place of a single overloaded method name, wxPython implements the following methods:\par \indented{2cm}{\begin{twocollist} -\twocolitem{\bf{InsertColumn(col, heading, format=wxLIST_FORMAT_LEFT, +\twocolitem{{\bf InsertColumn(col, heading, format=wxLIST\_FORMAT\_LEFT, width=-1)}}{Creates a column using a header string only.} -\twocolitem{\bf{InsertColumnInfo(col, item)}}{Creates a column using a +\twocolitem{{\bf InsertColumnInfo(col, item)}}{Creates a column using a wxListInfo.} \end{twocollist}} } @@ -415,11 +468,11 @@ Insert an image/string item. \pythonnote{In place of a single overloaded method name, wxPython implements the following methods:\par -\indented{2cm}{\begin{twocollist} -\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.} -\twocolitem{\bf{InsertImageStringItem(index, label, imageIndex)}}{Insert an image/string item.} +\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.} +\twocolitem{{\bf InsertImageStringItem(index, label, imageIndex)}}{Insert an image/string item.} \end{twocollist}} } @@ -471,6 +524,8 @@ 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: @@ -504,6 +559,12 @@ The {\bf m\_mask} member contains a bitlist specifying which of the other fields The {\bf m\_stateMask} and {\bf m\_state} members take flags from the following: +The wxListItem object can also contain item-specific colour and font +information: for this you need to call one of SetTextColour(), +SetBackgroundColour() or SetFont() functions on it passing it the colour/font +to use. If the colour/font is not specified, the default list control +colour/font is used. + \twocolwidtha{5cm} \begin{twocollist}\itemsep=0pt \twocolitem{wxLIST\_STATE\_DONTCARE}{Don't care what the state is. Win32 only. } @@ -520,13 +581,12 @@ Sets a string field at a particular column. \pythonnote{In place of a single overloaded method name, wxPython implements the following methods:\par \indented{2cm}{\begin{twocollist} -\twocolitem{\bf{SetItem(item)}}{Sets information about the given wxListItem.} -\twocolitem{\bf{SetStringItem(index, col, label, imageId)}}{Sets a +\twocolitem{{\bf SetItem(item)}}{Sets information about the given wxListItem.} +\twocolitem{{\bf SetStringItem(index, col, label, imageId)}}{Sets a string or image at a given location.} \end{twocollist}} } - \membersection{wxListCtrl::SetItemData}\label{wxlistctrlsetitemdata} \func{bool}{SetItemData}{\param{long }{item}, \param{long }{data}} @@ -580,21 +640,38 @@ 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: + +\begin{verbatim} +int wxCALLBACK wxListCompareFunction(long item1, long item2, long sortData) +\end{verbatim} -Sorts the items in the list control. +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.}