X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6d06e061dc11140151be2914c30c759ee15e3fe7..6e65f80be5dfcc75bd520fc320d3389e4559bccf:/docs/latex/wx/treectrl.tex?ds=sidebyside diff --git a/docs/latex/wx/treectrl.tex b/docs/latex/wx/treectrl.tex index 2a39b19c15..a7f028a967 100644 --- a/docs/latex/wx/treectrl.tex +++ b/docs/latex/wx/treectrl.tex @@ -1,3 +1,14 @@ +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% Name: treectrl.tex +%% Purpose: wxTreeCtrl documentation +%% Author: wxWidgets Team +%% Modified by: +%% Created: +%% RCS-ID: $Id$ +%% Copyright: (c) wxWidgets Team +%% License: wxWindows license +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + \section{\class{wxTreeCtrl}}\label{wxtreectrl} A tree control presents information as a hierarchy, with items that may be expanded @@ -27,15 +38,11 @@ if you wish the user to be able to edit labels in the tree control.} to document that no buttons are to be drawn.} \twocolitem{\windowstyle{wxTR\_HAS\_BUTTONS}}{Use this style to show + and - buttons to the left of parent items.} -\twocolitem{\windowstyle{wxTR\_TWIST\_BUTTONS}}{Use this style -to show Mac-style twister buttons to the left of parent items. -If both wxTR\_HAS\_BUTTONS and wxTR\_TWIST\_BUTTONS are given, -twister buttons are generated. Generic only.} \twocolitem{\windowstyle{wxTR\_NO\_LINES}}{Use this style to hide vertical level connectors.} \twocolitem{\windowstyle{wxTR\_FULL\_ROW\_HIGHLIGHT}}{Use this style to have the background colour and the selection highlight extend over the entire horizontal -row of the tree control window. (This flag is ignored under Windows unless you +row of the tree control window. (This flag is ignored under Windows unless you specify wxTR\_NO\_LINES as well.) } \twocolitem{\windowstyle{wxTR\_LINES\_AT\_ROOT}}{Use this style to show lines between root nodes. @@ -75,6 +82,7 @@ functions that take a \helpref{wxTreeEvent}{wxtreeevent} argument. \begin{twocollist}\itemsep=0pt \twocolitem{{\bf EVT\_TREE\_BEGIN\_DRAG(id, func)}}{Begin dragging with the left mouse button.} \twocolitem{{\bf EVT\_TREE\_BEGIN\_RDRAG(id, func)}}{Begin dragging with the right mouse button.} +\twocolitem{{\bf EVT\_TREE\_END\_DRAG(id, func)}}{End dragging with the left or right mouse button.} \twocolitem{{\bf EVT\_TREE\_BEGIN\_LABEL\_EDIT(id, func)}}{Begin editing a label. This can be prevented by calling \helpref{Veto()}{wxnotifyeventveto}.} \twocolitem{{\bf EVT\_TREE\_END\_LABEL\_EDIT(id, func)}}{Finish editing a label. This can be prevented by calling \helpref{Veto()}{wxnotifyeventveto}.} \twocolitem{{\bf EVT\_TREE\_DELETE\_ITEM(id, func)}}{Delete an item.} @@ -85,11 +93,15 @@ functions that take a \helpref{wxTreeEvent}{wxtreeevent} argument. \twocolitem{{\bf EVT\_TREE\_ITEM\_COLLAPSING(id, func)}}{The item is being collapsed. This can be prevented by calling \helpref{Veto()}{wxnotifyeventveto}.} \twocolitem{{\bf EVT\_TREE\_ITEM\_EXPANDED(id, func)}}{The item has been expanded.} \twocolitem{{\bf EVT\_TREE\_ITEM\_EXPANDING(id, func)}}{The item is being expanded. This can be prevented by calling \helpref{Veto()}{wxnotifyeventveto}.} +\twocolitem{{\bf EVT\_TREE\_ITEM\_RIGHT\_CLICK(id, func)}}{The user has clicked the item with the right mouse button.} +\twocolitem{{\bf EVT\_TREE\_ITEM\_MIDDLE\_CLICK(id, func)}}{The user has clicked the item with the middle mouse button.} \twocolitem{{\bf EVT\_TREE\_SEL\_CHANGED(id, func)}}{Selection has changed.} \twocolitem{{\bf EVT\_TREE\_SEL\_CHANGING(id, func)}}{Selection is changing. This can be prevented by calling \helpref{Veto()}{wxnotifyeventveto}.} \twocolitem{{\bf EVT\_TREE\_KEY\_DOWN(id, func)}}{A key has been pressed.} \twocolitem{{\bf EVT\_TREE\_ITEM\_GETTOOLTIP(id, func)}}{The opportunity to set the item tooltip is being given to the application (call wxTreeEvent::SetToolTip). Windows only.} +\twocolitem{{\bf EVT\_TREE\_ITEM\_MENU(id, func)}}{The context menu for the selected item has been requested, either by a right click or by using the menu key.} +\twocolitem{{\bf EVT\_TREE\_STATE\_IMAGE\_CLICK(id, func)}}{The state image has been clicked. Windows only.} \end{twocollist} \wxheading{See also} @@ -103,10 +115,9 @@ wxTreeCtrl class uses the standard common treeview control under Win32 implemented in the system library {\tt comctl32.dll}. Some versions of this library are known to have bugs with handling the tree control colours: the usual symptom is that the expanded items leave black (or otherwise incorrectly -coloured) background behind them, especially for the controls using non -default background colour. The recommended solution is to upgrade the {\tt comctl32.dll} -to a newer version: see -\urlref{http://www.microsoft.com/msdownload/ieplatform/ie/comctrlx86.asp}{http://www.microsoft.com/msdownload/ieplatform/ie/comctrlx86.asp}. +coloured) background behind them, especially for the controls using non-default background colour. The recommended solution is to upgrade the {\tt comctl32.dll} +to a newer version: see +\urlref{http://www.microsoft.com/downloads/release.asp?ReleaseID=11916}{http://www.microsoft.com/downloads/release.asp?ReleaseID=11916}. \latexignore{\rtfignore{\wxheading{Members}}} @@ -257,7 +268,7 @@ This function may cause a subsequent call to GetNextChild to fail. \func{void}{DeleteAllItems}{\void} -Deletes all the items in the control. Note that this may not generate +Deletes all items in the control. Note that this may not generate {\tt EVT\_TREE\_DELETE\_ITEM} events under some Windows versions although normally such event is generated for each removed item. @@ -267,7 +278,7 @@ normally such event is generated for each removed item. \func{void}{DeleteChildren}{\param{const wxTreeItemId\& }{item}} Deletes all children of the given item (but not the item itself). Note that -this will {\bf not} generate any events unlike +this will {\bf not} generate any events unlike \helpref{Delete}{wxtreectrldelete} method. If you have called \helpref{wxTreeCtrl::SetItemHasChildren}{wxtreectrlsetitemhaschildren}, you @@ -320,6 +331,20 @@ Scrolls and/or expands items to ensure that the given item is visible. Expands the given item. +\membersection{wxTreeCtrl::ExpandAll}\label{wxtreectrlexpandall} + +\func{void}{Expand}{\void} + +Expands all items in the tree. + + +\membersection{wxTreeCtrl::ExpandAllChildren}\label{wxtreectrlexpandallchildren} + +\func{void}{ExpandAllChildren}{\param{const wxTreeItemId\&}{ item}} + +Expands the given item and all its children recursively. + + \membersection{wxTreeCtrl::GetBoundingRect}\label{wxtreectrlgetitemrect} \constfunc{bool}{GetBoundingRect}{\param{const wxTreeItemId\&}{ item}, \param{wxRect\& }{rect}, \param{bool }{textOnly = {\tt false}}} @@ -329,14 +354,18 @@ only the rectangle around the item's label will be returned, otherwise the item's image is also taken into account. The return value is {\tt true} if the rectangle was successfully retrieved or {\tt false} -if it was not (in this case {\it rect} is not changed) - for example, if the +if it was not (in this case {\it rect} is not changed) -- for example, if the item is currently invisible. +Notice that the rectangle coordinates are logical, not physical ones. So, for +example, the x coordinate may be negative if the tree has a horizontal +scrollbar and its position is not $0$. + \pythonnote{The wxPython version of this method requires only the {\tt item} and {\tt textOnly} parameters. The return value is either a {\tt wxRect} object or {\tt None}.} -\perlnote{In wxPerl this method only takes the parameters {\tt item} and +\perlnote{In wxPerl this method only takes the parameters {\tt item} and {\tt textOnly}, and returns a Wx::Rect ( or undef ).} @@ -351,7 +380,7 @@ This function is only available in the generic version. \membersection{wxTreeCtrl::GetChildrenCount}\label{wxtreectrlgetchildrencount} -\constfunc{size\_t}{GetChildrenCount}{\param{const wxTreeItemId\&}{ item}, \param{bool}{ recursively = {\tt true}}} +\constfunc{unsigned int}{GetChildrenCount}{\param{const wxTreeItemId\&}{ item}, \param{bool}{ recursively = {\tt true}}} Returns the number of items in the branch. If {\it recursively} is {\tt true}, returns the total number of descendants, otherwise only one level of children is counted. @@ -359,7 +388,7 @@ of descendants, otherwise only one level of children is counted. \membersection{wxTreeCtrl::GetCount}\label{wxtreectrlgetcount} -\constfunc{int}{GetCount}{\void} +\constfunc{unsigned int}{GetCount}{\void} Returns the number of items in the control. @@ -386,7 +415,7 @@ to make these functions reentrant (i.e. allow more than one enumeration on one and the same object simultaneously). The cookie passed to GetFirstChild and GetNextChild should be the same variable. -Returns an invalid tree item if there are no further children. +Returns an invalid tree item (i.e. IsOk() returns {\tt false}) if there are no further children. \wxheading{See also} @@ -560,19 +589,6 @@ Returns the next visible item. Returns the item's parent. -\membersection{wxTreeCtrl::GetParent}\label{wxtreectrlgetparent} - -\constfunc{wxTreeItemId}{GetParent}{\param{const wxTreeItemId\&}{ item}} - -{\bf NOTE:} This function is deprecated and will only work if {\tt WXWIN\_COMPATIBILITY\_2\_2} -is defined. Use \helpref{wxTreeCtrl::GetItemParent}{wxtreectrlgetitemparent} instead. - -Returns the item's parent. - -\pythonnote{This method is named {\tt GetItemParent} to avoid a name -clash with wxWindow::GetParent.} - - \membersection{wxTreeCtrl::GetPrevSibling}\label{wxtreectrlgetprevsibling} \constfunc{wxTreeItemId}{GetPrevSibling}{\param{const wxTreeItemId\&}{ item}} @@ -593,6 +609,18 @@ Returns an invalid tree item if there are no further children. Returns the previous visible item. +\membersection{wxTreeCtrl::GetQuickBestSize}\label{wxtreectrlgetquickbestsize} + +\constfunc{bool}{GetQuickBestSize}{\void} + +Returns true if the control will use a quick calculation for the best size, +looking only at the first and last items. The default is false. + +\wxheading{See also} + +\helpref{wxTreeCtrl::SetQuickBestSize}{wxtreectrlsetquickbestsize} + + \membersection{wxTreeCtrl::GetRootItem}\label{wxtreectrlgetrootitem} \constfunc{wxTreeItemId}{GetRootItem}{\void} @@ -620,7 +648,7 @@ this style. \membersection{wxTreeCtrl::GetSelections}\label{wxtreectrlgetselections} -\constfunc{size\_t}{GetSelections}{\param{wxArrayTreeItemIds\& }{selection}} +\constfunc{unsigned int}{GetSelections}{\param{wxArrayTreeItemIds\& }{selection}} Fills the array of tree items passed in with the currently selected items. This function can be called only if the control has the wxTR\_MULTIPLE style. @@ -643,7 +671,7 @@ Returns the state image list (from which application-defined state images are ta \membersection{wxTreeCtrl::HitTest}\label{wxtreectrlhittest} -\func{wxTreeItemId}{HitTest}{\param{const wxPoint\& }{point}, \param{int\& }{flags}} +\constfunc{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: @@ -737,7 +765,12 @@ 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. +Please note that you \textbf{must} use wxRTTI macros +\helpref{DECLARE\_DYNAMIC\_CLASS}{declaredynamicclass} and +\helpref{IMPLEMENT\_DYNAMIC\_CLASS}{implementdynamicclass} if you override this +function because otherwise the base class considers that it is not overridden +and uses the default comparison, i.e. sorts the items alphabetically, which +allows it optimize away the calls to the virtual function completely. See also: \helpref{SortChildren}{wxtreectrlsortchildren} @@ -765,7 +798,7 @@ Scrolls the specified item into view. \membersection{wxTreeCtrl::SelectItem}\label{wxtreectrlselectitem} -\func{bool}{SelectItem}{\param{const wxTreeItemId\&}{ item}, \param{bool }{select = \true}} +\func{void}{SelectItem}{\param{const wxTreeItemId\&}{ item}, \param{bool }{select = \true}} Selects the given item. In multiple selection controls, can be also used to deselect a currently selected item if the value of \arg{select} is false. @@ -845,6 +878,15 @@ tree->GetItemData(item)->SetData(data).} \end{twocollist}} }% +\membersection{wxTreeCtrl::SetItemDropHighlight}\label{wxtreectrlsetitemdrophighlight} + +\func{void}{SetItemDropHighlight}{\param{const wxTreeItemId\&}{ item}, \param{bool}{highlight = {\tt true}}} + +Gives the item the visual feedback for Drag'n'Drop actions, which is +useful if something is dragged from the outside onto the tree control +(as opposed to a DnD operation within the tree control, which already +is implemented internally). + \membersection{wxTreeCtrl::SetItemFont}\label{wxtreectrlsetitemfont} \func{void}{SetItemFont}{\param{const wxTreeItemId\&}{ item}, \param{const wxFont\& }{font}} @@ -898,6 +940,19 @@ Sets the item label. Sets the colour of the item's text. +\membersection{wxTreeCtrl::SetQuickBestSize}\label{wxtreectrlsetquickbestsize} + +\func{void}{SetQuickBestSize}{\param{bool}{ quickBestSize}} + +If true is passed, specifies that the control will use a quick calculation for the best size, +looking only at the first and last items. Otherwise, it will look at all items. +The default is false. + +\wxheading{See also} + +\helpref{wxTreeCtrl::GetQuickBestSize}{wxtreectrlgetquickbestsize} + + \membersection{wxTreeCtrl::SetStateImageList}\label{wxtreectrlsetstateimagelist} \func{void}{SetStateImageList}{\param{wxImageList*}{ imageList}} @@ -968,4 +1023,3 @@ all items if it does have this style. Unselects the given item. This works in multiselection controls only. -