Introduced the ability to size a book control based on the currently selected page

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

\section{\class{wxNotebook}}\label{wxnotebook}

This class represents a notebook control, which manages multiple windows with associated tabs.

To use the class, create a wxNotebook object and call \helpref{AddPage}{wxnotebookaddpage} or \helpref{InsertPage}{wxnotebookinsertpage},
passing a window to be used as the page. Do not explicitly delete the window for a page that is currently
managed by wxNotebook.

{\bf wxNotebookPage} is a typedef for wxWindow.

\wxheading{Derived from}

\helpref{wxControl}{wxcontrol}\\
\helpref{wxWindow}{wxwindow}\\
\helpref{wxEvtHandler}{wxevthandler}\\
\helpref{wxObject}{wxobject}

\wxheading{Include files}

<wx/notebook.h>

\wxheading{Window styles}

\twocolwidtha{5cm}
\begin{twocollist}\itemsep=0pt
\twocolitem{\windowstyle{wxNB\_TOP}}{Place tabs on the top side.}
\twocolitem{\windowstyle{wxNB\_LEFT}}{Place tabs on the left side.}
\twocolitem{\windowstyle{wxNB\_RIGHT}}{Place tabs on the right side.}
\twocolitem{\windowstyle{wxNB\_BOTTOM}}{Place tabs under instead of above the notebook pages.}
\twocolitem{\windowstyle{wxNB\_FIXEDWIDTH}}{(Windows only) All tabs will have same width.}
\twocolitem{\windowstyle{wxNB\_MULTILINE}}{(Windows only) There can be several rows of tabs.}
\twocolitem{\windowstyle{wxNB\_NOPAGETHEME}}{(Windows only) Display a solid colour on notebook pages, and not a gradient, which can reduce performance.}
\twocolitem{\windowstyle{wxNB\_FLAT}}{(Windows CE only) Show tabs in a flat style.}

\end{twocollist}

The styles \texttt{wxNB\_LEFT}, \texttt{RIGHT} and \texttt{BOTTOM} are not
supported under Microsoft Windows XP when using visual themes.

See also \helpref{window styles overview}{windowstyles}.

\input noteevt.inc

\wxheading{Page backgrounds}

On Windows XP, the default theme paints a gradient on the notebook's pages.
If you wish to suppress this theme, for aesthetic or performance reasons,
there are three ways of doing it. You can use wxNB\_NOPAGETHEME to disable
themed drawing for a particular notebook, you can call {\tt wxSystemOptions::SetOption} 
to disable it for the whole application, or you can disable it for individual
pages by using {\tt SetBackgroundColour}.

To disable themed pages globally:

\begin{verbatim}
    wxSystemOptions::SetOption(wxT("msw.notebook.themed-background"), 0);
\end{verbatim}

Set the value to 1 to enable it again.

To give a single page a solid background that more or less fits in with the
overall theme, use:

\begin{verbatim}
    wxColour col = notebook->GetThemeBackgroundColour();
    if (col.Ok())
    {
        page->SetBackgroundColour(col);
    }
\end{verbatim}

On platforms other than Windows, or if the application is not using Windows
themes, {\tt GetThemeBackgroundColour} will return an uninitialised colour object,
and the above code will therefore work on all platforms.

\wxheading{See also}

\helpref{wxBookCtrl}{wxbookctrloverview}, \helpref{wxNotebookEvent}{wxnotebookevent}, \helpref{wxImageList}{wximagelist}, \helpref{notebook sample}{samplenotebook}\rtfsp

\latexignore{\rtfignore{\wxheading{Members}}}

\membersection{wxNotebook::wxNotebook}\label{wxnotebookctor}

\func{}{wxNotebook}{\void}

Default constructor.

\func{}{wxNotebook}{\param{wxWindow*}{ parent}, \param{wxWindowID }{id}, \param{const wxPoint\&}{ pos = wxDefaultPosition},
 \param{const wxSize\&}{ size = wxDefaultSize}, \param{long}{ style = 0}, \param{const wxString\& }{name = wxNotebookNameStr}}

Constructs a notebook control.

Note that sometimes you can reduce flicker by passing the wxCLIP\_CHILDREN window style.

\wxheading{Parameters}

\docparam{parent}{The parent window. Must be non-NULL.}

\docparam{id}{The window identifier.}

\docparam{pos}{The window position.}

\docparam{size}{The window size.}

\docparam{style}{The window style. See \helpref{wxNotebook}{wxnotebook}.}

\docparam{name}{The name of the control (used only under Motif).}


\membersection{wxNotebook::\destruct{wxNotebook}}\label{wxnotebookdtor}

\func{}{\destruct{wxNotebook}}{\void}

Destroys the wxNotebook object.


\membersection{wxNotebook::AddPage}\label{wxnotebookaddpage}

\func{bool}{AddPage}{\param{wxNotebookPage*}{ page},
 \param{const wxString\&}{ text},
 \param{bool}{ select = false},
 \param{int}{ imageId = -1}}

Adds a new page.

The call to this function may generate the page changing events.

\wxheading{Parameters}

\docparam{page}{Specifies the new page.}

\docparam{text}{Specifies the text for the new page.}

\docparam{select}{Specifies whether the page should be selected.}

\docparam{imageId}{Specifies the optional image index for the new page.}

\wxheading{Return value}

true if successful, false otherwise.

\wxheading{Remarks}

Do not delete the page, it will be deleted by the notebook.

\wxheading{See also}

\helpref{wxNotebook::InsertPage}{wxnotebookinsertpage}


\membersection{wxNotebook::AdvanceSelection}\label{wxnotebookadvanceselection}

\func{void}{AdvanceSelection}{\param{bool}{ forward = true}}

Cycles through the tabs.

The call to this function generates the page changing events.


\membersection{wxNotebook::AssignImageList}\label{wxnotebookassignimagelist}

\func{void}{AssignImageList}{\param{wxImageList*}{ imageList}}

Sets the image list for the page control and takes ownership of
the list.

\wxheading{See also}

\helpref{wxImageList}{wximagelist},
\helpref{SetImageList}{wxnotebooksetimagelist}


\membersection{wxNotebook::Create}\label{wxnotebookcreate}

\func{bool}{Create}{\param{wxWindow*}{ parent}, \param{wxWindowID }{id}, \param{const wxPoint\&}{ pos = wxDefaultPosition},
 \param{const wxSize\&}{ size}, \param{long}{ style = 0}, \param{const wxString\& }{name = wxNotebookNameStr}}

Creates a notebook control. See \helpref{wxNotebook::wxNotebook}{wxnotebookctor} for a description
of the parameters.


\membersection{wxNotebook::DeleteAllPages}\label{wxnotebookdeleteallpages}

\func{bool}{DeleteAllPages}{\void}

Deletes all pages.


\membersection{wxNotebook::DeletePage}\label{wxnotebookdeletepage}

\func{bool}{DeletePage}{\param{size\_t}{ page}}

Deletes the specified page, and the associated window.

The call to this function generates the page changing events.


\membersection{wxNotebook::GetCurrentPage}\label{wxnotebookgetcurrentpage}

\constfunc{wxWindow *}{GetCurrentPage}{\void}

Returns the currently selected notebook age or \texttt{NULL}.


\membersection{wxNotebook::GetImageList}\label{wxnotebookgetimagelist}

\constfunc{wxImageList*}{GetImageList}{\void}

Returns the associated image list.

\wxheading{See also}

\helpref{wxImageList}{wximagelist}, \helpref{wxNotebook::SetImageList}{wxnotebooksetimagelist}


\membersection{wxNotebook::GetPage}\label{wxnotebookgetpage}

\func{wxNotebookPage*}{GetPage}{\param{size\_t}{ page}}

Returns the window at the given page position.


\membersection{wxNotebook::GetPageCount}\label{wxnotebookgetpagecount}

\constfunc{size\_t}{GetPageCount}{\void}

Returns the number of pages in the notebook control.


\membersection{wxNotebook::GetPageImage}\label{wxnotebookgetpageimage}

\constfunc{int}{GetPageImage}{\param{size\_t }{nPage}}

Returns the image index for the given page.


\membersection{wxNotebook::GetPageText}\label{wxnotebookgetpagetext}

\constfunc{wxString}{GetPageText}{\param{size\_t }{nPage}}

Returns the string for the given page.


\membersection{wxNotebook::GetRowCount}\label{wxnotebookgetrowcount}

\constfunc{int}{GetRowCount}{\void}

Returns the number of rows in the notebook control.


\membersection{wxNotebook::GetSelection}\label{wxnotebookgetselection}

\constfunc{int}{GetSelection}{\void}

Returns the currently selected page, or $-1$ if none was selected.

Note that this method may return either the previously or newly selected page
when called from the {\tt EVT\_NOTEBOOK\_PAGE\_CHANGED} handler depending on
the platform and so\rtfsp
\helpref{wxNotebookEvent::GetSelection}{wxnotebookeventgetselection} should be
used instead in this case.

\membersection{wxNotebook::GetThemeBackgroundColour}\label{wxnotebookgetthemebackgroundcolour}

\constfunc{wxColour}{GetThemeBackgroundColour}{\void}

If running under Windows and themes are enabled for the application, this function
returns a suitable colour for painting the background of a notebook page, and can be passed
to {\tt SetBackgroundColour}. Otherwise, an uninitialised colour will be returned.

\membersection{wxNotebook::HitTest}\label{wxnotebookhittest}

\func{int}{HitTest}{\param{const wxPoint\&}{ pt}, \param{long}{ *flags = {\tt NULL}}}

Returns the index of the tab at the specified position or {\tt wxNOT\_FOUND}
if none. If {\it flags} parameter is non {\tt NULL}, the position of the point
inside the tab is returned as well.

{\bf NB: } This method is currently only implemented under wxMSW and wxUniv.

\wxheading{Parameters}

\docparam{pt}{Specifies the point for the hit test.}

\docparam{flags}{Return value for detailed information. One of the following values:
\twocolwidtha{7cm}
\begin{twocollist}\itemsep=0pt
\twocolitem{{\bf wxNB\_HITTEST\_NOWHERE}}{There was no tab under this point.}
\twocolitem{{\bf wxNB\_HITTEST\_ONICON}}{The point was over an icon (currently wxMSW only).}
\twocolitem{{\bf wxNB\_HITTEST\_ONLABEL}}{The point was over a label (currently wxMSW only).}
\twocolitem{{\bf wxNB\_HITTEST\_ONITEM}}{The point was over an item, but not on the label or icon.}
\end{twocollist}
}

\wxheading{Return value}

Returns the zero-based tab index or {\tt wxNOT\_FOUND} if there is no tab is at
the specified position.



\membersection{wxNotebook::InsertPage}\label{wxnotebookinsertpage}

\func{bool}{InsertPage}{\param{size\_t}{ index}, \param{wxNotebookPage*}{ page},
 \param{const wxString\&}{ text},
 \param{bool}{ select = false},
 \param{int}{ imageId = -1}}

Inserts a new page at the specified position.

\wxheading{Parameters}

\docparam{index}{Specifies the position for the new page.}

\docparam{page}{Specifies the new page.}

\docparam{text}{Specifies the text for the new page.}

\docparam{select}{Specifies whether the page should be selected.}

\docparam{imageId}{Specifies the optional image index for the new page.}

\wxheading{Return value}

true if successful, false otherwise.

\wxheading{Remarks}

Do not delete the page, it will be deleted by the notebook.

\wxheading{See also}

\helpref{wxNotebook::AddPage}{wxnotebookaddpage}


\membersection{wxNotebook::OnSelChange}\label{wxnotebookonselchange}

\func{void}{OnSelChange}{\param{wxNotebookEvent\&}{ event}}

An event handler function, called when the page selection is changed.

\wxheading{See also}

\helpref{wxNotebookEvent}{wxnotebookevent}


\membersection{wxNotebook::RemovePage}\label{wxnotebookremovepage}

\func{bool}{RemovePage}{\param{size\_t}{ page}}

Deletes the specified page, without deleting the associated window.


\membersection{wxNotebook::SetImageList}\label{wxnotebooksetimagelist}

\func{void}{SetImageList}{\param{wxImageList*}{ imageList}}

Sets the image list for the page control. It does not take
ownership of the image list, you must delete it yourself.

\wxheading{See also}

\helpref{wxImageList}{wximagelist},
\helpref{AssignImageList}{wxnotebookassignimagelist}


\membersection{wxNotebook::SetPadding}\label{wxnotebooksetpadding}

\func{void}{SetPadding}{\param{const wxSize\&}{ padding}}

Sets the amount of space around each page's icon and label, in pixels.

{\bf NB:} The vertical padding cannot be changed in wxGTK.


\membersection{wxNotebook::SetPageSize}\label{wxnotebooksetpagesize}

\func{void}{SetPageSize}{\param{const wxSize\&}{ size}}

Sets the width and height of the pages.

{\bf NB:} This method is currently not implemented for wxGTK.


\membersection{wxNotebook::SetPageImage}\label{wxnotebooksetpageimage}

\func{bool}{SetPageImage}{\param{size\_t}{ page}, \param{int }{image}}

Sets the image index for the given page. {\it image} is an index into
the image list which was set with \helpref{wxNotebook::SetImageList}{wxnotebooksetimagelist}.


\membersection{wxNotebook::SetPageText}\label{wxnotebooksetpagetext}

\func{bool}{SetPageText}{\param{size\_t}{ page}, \param{const wxString\& }{text}}

Sets the text for the given page.


\membersection{wxNotebook::SetSelection}\label{wxnotebooksetselection}

\func{int}{SetSelection}{\param{size\_t}{ page}}

Sets the selection for the given page, returning the previous selection.

The call to this function generates the page changing events.

\wxheading{See also}

\helpref{wxNotebook::GetSelection}{wxnotebookgetselection}