added a way to create fonts with specified pixel size

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

diff --git a/docs/latex/wx/vscroll.tex b/docs/latex/wx/vscroll.tex
index 3489ab5885350bc75435c95c688ca81cc539c36c..52fbb301899a5970b48d558d3f5013e5444ed467 100644 (file)
--- a/docs/latex/wx/vscroll.tex
+++ b/docs/latex/wx/vscroll.tex
@@ -6,7 +6,7 @@
 %% Created:     30.05.03
 %% RCS-ID:      $Id$
 %% Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
-%% License:     wxWindows license
+%% License:     wxWidgets license
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 \section{\class{wxVScrolledWindow}}\label{wxvscrolledwindow}
@@ -19,7 +19,7 @@ this class only supports scrolling in one direction currently (this could
 and probably will change in the future however).
 
 In any case, this is a generalization of the 
-\helpref{wxScrolledWindow}{wxScrolledWindow} class which can be only used when
+\helpref{wxScrolledWindow}{wxscrolledwindow} class which can be only used when
 all lines have the same height. It lacks some other wxScrolledWindow features
 however, notably there is currently no support for horizontal scrolling; it
 can't scroll another window nor only a rectangle of the window and not its
@@ -86,10 +86,29 @@ this class.}
 Same as the \helpref{non default ctor}{wxvscrolledwindowctor} but returns
 status code: {\tt true} if ok, {\tt false} if the window couldn't have been created.
 
-Just as with the ctor above, {\tt wxVSCROLL| style is always used, there is no
+Just as with the ctor above, {\tt wxVSCROLL} style is always used, there is no
 need to specify it explicitly.
 
 
+\membersection{wxVScrolledWindow::EstimateTotalHeight}\label{wxvscrolledwindowestimatetotalheight}
+
+\constfunc{virtual wxCoord}{EstimateTotalHeight}{\void}
+
+This protected function is used internally by wxVScrolledWindow to estimate the
+total height of the window when \helpref{SetLineCount}{wxvscrolledwindowsetlinecount} 
+is called. The default implementation uses the brute force approach if the
+number of the items in the control is small enough. Otherwise, it tries to find
+the average line height using some lines in the beginning, middle and the end.
+
+If it is undesirable to access all these lines (some of which might be never
+shown) just for the total height calculation, you may override the function and
+provide your own guess better and/or faster.
+
+Note that although returning a totally wrong value would still work, it risks
+to result in very strange scrollbar behaviour so this function should really
+try to make the best guess possible.
+
+
 \membersection{wxVScrolledWindow::GetFirstVisibleLine}\label{wxvscrolledwindowgetfirstvisibleline}
 
 \constfunc{size\_t}{GetFirstVisibleLine}{\void}
@@ -112,6 +131,24 @@ Get the number of lines this window contains (previously set by
 \helpref{SetLineCount()}{wxvscrolledwindowsetlinecount})
 
 
+\membersection{wxVScrolledWindow::HitTest}\label{wxvscrolledwindowhittest}
+
+\constfunc{int}{HitTest}{\param{wxCoord }{x}, \param{wxCoord }{y}}
+
+\constfunc{int}{HitTest}{\param{const wxPoint\& }{pt}}
+
+Return the item at the specified (in physical coordinates) position or
+{\tt wxNOT\_FOUND} if none, i.e. if it is below the last item.
+
+
+\membersection{wxVScrolledWindow::IsVisible}\label{wxvscrolledwindowisvisible}
+
+\constfunc{bool}{IsVisible}{\param{size\_t }{line}}
+
+Returns {\tt true} if the given line is (at least partially) visible or 
+{\tt false} otherwise.
+
+
 \membersection{wxVScrolledWindow::OnGetLineHeight}\label{wxvscrolledwindowongetlineheight}
 
 \constfunc{wxCoord}{OnGetLineHeight}{\param{size\_t }{n}}
@@ -144,6 +181,40 @@ Finally note that {\it lineMin} is inclusive, while {\it lineMax} is exclusive,
 as usual.
 
 
+\membersection{wxVScrolledWindow::RefreshLine}\label{wxvscrolledwindowrefreshline}
+
+\func{void}{RefreshLine}{\param{size\_t }{line}}
+
+Refreshes the specified line -- it will be redrawn during the next main loop
+iteration.
+
+\wxheading{See also}
+
+\helpref{RefreshLines}{wxvscrolledwindowrefreshlines}
+
+
+\membersection{wxVScrolledWindow::RefreshLines}\label{wxvscrolledwindowrefreshlines}
+
+\func{void}{RefreshLines}{\param{size\_t }{from}, \param{size\_t }{to}}
+
+Refreshes all lines between {\it from} and {\it to}, inclusive. {\it from}
+should be less than or equal to {\it to}.
+
+\wxheading{See also}
+
+\helpref{RefreshLine}{wxvscrolledwindowrefreshline}
+
+
+\membersection{wxVScrolledWindow::RefreshAll}\label{wxvscrolledwindowrefreshall}
+
+\func{void}{RefreshAll}{\void}
+
+This function completely refreshes the control, recalculating the number of
+items shown on screen and repaining them. It should be called when the values
+returned by \helpref{OnGetLineHeight}{wxvscrolledwindowongetlineheight} change
+for some reason and the window must be updated to reflect this.
+
+
 \membersection{wxVScrolledWindow::ScrollLines}\label{wxvscrolledwindowscrolllines}
 
 \func{bool}{ScrollLines}{\param{int }{lines}}