// Purpose: topic overview
// Author: wxWidgets team
// RCS-ID: $Id$
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
/**
@section overview_windowsizing_glossary Glossary
+@li @b "Size": this is the current size of the window and it can be explicitly
+ set or fetched with the wxWindow::SetSize() or wxWindow::GetSize() methods.
+ This size value is the size that the widget is currently using on screen and is
+ the way to change the size of something that is not being managed by a sizer.
+
+@li @b "Client Size": the client size represents the widget's area inside of any
+ borders belonging to the widget and is the area that can be drawn upon in a
+ @c EVT_PAINT event. For wxFrame, the client size also excludes the frame
+ menu, tool and status bars, if any. If a window doesn't have any border
+ (and is not a wxFrame with some bars) then its client size is the same as
+ its size.
+
@li @b "Best Size": the best size of a widget depends on what kind of widget it is,
and usually also on the contents of the widget. For example a wxListBox's best
size will be calculated based on how many items it has, up to a certain limit,
normally won't be smaller than the platform default button size (unless a style
flag overrides that).
There is a special virtual method in the C++ window classes called
- wxWindow::DoGetBestSize() that a class needs to override if it wants to calculate
- its own best size based on its content.
-
-@li @b "Min Size": the minimal size of a widget is a size that is normally explicitly set
- by the programmer either with the wxWindow::SetMinSize() method or with the
+ wxWindow::DoGetBestSize() that a class can override if it wants to calculate
+ its own best size based on its content, however notice that usually it is
+ more convenient to override DoGetBestClientSize(), see below.
+
+@li @b "Best Client Size": this is simply the client size corresponding to the
+ best window size. When the fitting size for the given contents is computed,
+ it will usually be the client size and the size of the borders needs to be
+ added to obtain the full best size. For this reason, it's preferable to
+ override DoGetBestClientSize() and let DoGetBestSize() compute the full
+ best size.
+
+@li @b "Minimal Size": the minimal size of a widget is a size that is normally explicitly
+ set by the programmer either with the wxWindow::SetMinSize() method or with the
wxWindow::SetSizeHints() method.
- Most controls will also set the min size to the size given in the control's
+ Most controls will also set the minimal size to the size given in the control's
constructor if a non-default value is passed.
Top-level windows such as wxFrame will not allow the user to resize the frame below
the minimal size.
-@li @b "Size": the size of a widget can be explicitly set or fetched with the
- wxWindow::SetSize() or wxWindow::GetSize() methods.
- This size value is the size that the widget is currently using on screen and is
- the way to change the size of something that is not being managed by a sizer.
-
-@li @b "Client Size": the client size represents the widget's area inside of any
- borders belonging to the widget and is the area that can be drawn upon in a
- @c EVT_PAINT event. If a widget doesn't have a border then its client size is
- the same as its size.
+@li @b "Maximum Size": just like for the minimal size, the maximum size is normally
+ explicitly set by the programmer with the wxWindow::SetMaxSize() method or
+ with wxWindow::SetSizeHints().
+ Top-level windows such as wxFrame will not allow the user to resize the frame above
+ the maximum size.
@li @b "Initial Size": the initial size of a widget is the size given to the
constructor of the widget, if any.
will fill in the missing size components using the best size and will set the
initial size of the control to the resulting size.
+@li @b "Virtual Size": the virtual size is the size of the potentially viewable
+ area of the widget.
+ The virtual size of a widget may be larger than its actual size and in this
+ case scrollbars will appear to the let the user 'explore' the full contents
+ of the widget.
+ See wxScrolled for more info.
+
@section overview_windowsizing_func Functions related to sizing