\section{\class{wxSizer}}\label{wxsizer}
wxSizer is the abstract base class used for laying out subwindows in a window. You
-cannot use wxSizer directly; instead, you will have to use \helpref{wxBoxSizer}{wxboxsizer},
-\helpref{wxStaticBoxSizer}{wxstaticboxsizer} or \helpref{wxNotebookSizer}{wxnotebooksizer}.
+cannot use wxSizer directly; instead, you will have to use one of the sizer
+classes derived from it. Currently there are \helpref{wxBoxSizer}{wxboxsizer},
+\helpref{wxStaticBoxSizer}{wxstaticboxsizer},
+\helpref{wxGridSizer}{wxgridsizer}
+\helpref{wxFlexGridSizer}{wxflexgridsizer} and \helpref{wxGridBagSizer}{wxgridbagsizer}.
-The layout algorithm used by sizers in wxWindows is closely related to layout
+The layout algorithm used by sizers in wxWidgets is closely related to layout
in other GUI toolkits, such as Java's AWT, the GTK toolkit or the Qt toolkit. It is
based upon the idea of the individual subwindows reporting their minimal required
size and their ability to get stretched if the size of the parent window has changed.
-This will most often mean, that the programmer does not set the original size of
-a dialog in the beginning, rather the dialog will assigned a sizer and this sizer
+This will most often mean that the programmer does not set the original size of
+a dialog in the beginning, rather the dialog will be assigned a sizer and this sizer
will be queried about the recommended size. The sizer in turn will query its
children, which can be normal windows, empty space or other sizers, so that
a hierarchy of sizers can be constructed. Note that wxSizer does not derive from wxWindow
-and thus do not interfere with tab ordering and requires very little resources compared
+and thus does not interfere with tab ordering and requires very little resources compared
to a real window on screen.
-What makes sizers so well fitted for use in wxWindows is the fact that every control
+What makes sizers so well fitted for use in wxWidgets is the fact that every control
reports its own minimal size and the algorithm can handle differences in font sizes
or different window (dialog item) sizes on different platforms without problems. If e.g.
the standard font as well as the overall design of Motif widgets requires more space than
\wxheading{Derived from}
-\helpref{wxObject}{wxobject}
+\helpref{wxObject}{wxobject}\\
+\helpref{wxClientDataContainer}{wxclientdatacontainer}
+
+\wxheading{Include files}
+
+<wx/sizer.h>
+
+\wxheading{See also}
+
+\helpref{Sizer overview}{sizeroverview}
\latexignore{\rtfignore{\wxheading{Members}}}
+
\membersection{wxSizer::wxSizer}\label{wxsizerwxsizer}
\func{}{wxSizer}{\void}
The constructor. Note that wxSizer is an abstract base class and may not
be instantiated.
+
\membersection{wxSizer::\destruct{wxSizer}}\label{wxsizerdtor}
\func{}{\destruct{wxSizer}}{\void}
The destructor.
+
\membersection{wxSizer::Add}\label{wxsizeradd}
-\func{void}{Add}{\param{wxWindow* }{window}, \param{int }{option = 0},\param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
+\func{void}{Add}{\param{wxWindow* }{window}, \param{int }{proportion = 0},\param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
-\func{void}{Add}{\param{wxSizer* }{sizer}, \param{int }{option = 0}, \param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
+\func{void}{Add}{\param{wxSizer* }{sizer}, \param{int }{proportion = 0}, \param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
-\func{void}{Add}{\param{int }{width}, \param{int }{height}, \param{int }{option = 0}, \param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
+\func{void}{Add}{\param{int }{width}, \param{int }{height}, \param{int }{proportion = 0}, \param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
-Adds the {\it window} to the sizer. As wxSizer itself is an abstract class, the parameters
-have no meaning in the wxSizer class itself, but as there currently is only one class
-deriving directly from wxSizer and this class does not override these methods, the meaning
-of the parameters is described here:
+Appends a child to the sizer. wxSizer itself is an abstract class, but the parameters are
+equivalent in the derived classes that you will instantiate to use it so they are described
+here:
\docparam{window}{The window to be added to the sizer. Its initial size (either set explicitly by the
user or calculated internally when using wxDefaultSize) is interpreted as the minimal and in many
horizontal boxes on the level beneath).}
\docparam{width and height}{The dimension of a spacer to be added to the sizer. Adding spacers to sizers
-gives more flexilibilty in the design of dialogs; imagine for example a horizontal box with two buttons at the
+gives more flexibility in the design of dialogs; imagine for example a horizontal box with two buttons at the
bottom of a dialog: you might want to insert a space between the two buttons and make that space stretchable
-using the {\it option} flag and the result will be that the left button will be aligned with the left
+using the {\it proportion} flag and the result will be that the left button will be aligned with the left
side of the dialog and the right button with the right side - the space in between will shrink and grow with
the dialog.}
-\docparam{option}{Although the meaning of this parameter is undefined in wxSizer, it is used in wxBoxSizer
+\docparam{proportion}{Although the meaning of this parameter is undefined in wxSizer, it is used in wxBoxSizer
to indicate if a child of a sizer can change its size in the main orientation of the wxBoxSizer - where
-0 stands for not changable and a value of more than zero is interpreted relative to the value of other
+0 stands for not changeable and a value of more than zero is interpreted relative to the value of other
children of the same wxBoxSizer. For example, you might have a horizontal wxBoxSizer with three children, two
of which are supposed to change their size with the sizer. Then the two stretchable windows would get a
value of 1 each to make them grow and shrink equally with the sizer's horizontal dimension.}
-\docparam{flag}{This parameter can be used to set a number of flags which can
-be combined using the binary OR operator |. Two main behaviours are defined
-using these flags. One is the border around a window: the {\it border}
-parameter determines the border width whereas the flags given here determine
-where the border may be (wxTOP, wxBOTTOM, wxLEFT, wxRIGHT or wxALL). The other
-flags determine the child window's behaviour if the size of the sizer changes.
-However this is not - in contrast to the {\it option} flag - in the main
-orientation, but in the respectively other orientation. So if you created a
-wxBoxSizer with the wxVERTICAL option, these flags will be relevant if the
-sizer changes its horizontal size. A child may get resized to completely fill
-out the new size (using either wxGROW or wxEXPAND), it may get proportionally
-resized (wxSHAPED), it may get centered (wxALIGN\_CENTER or wxALIGN\_CENTRE)
-or it may get aligned to either side (wxALIGN\_LEFT and wxALIGN\_TOP are set
-to 0 and thus represent the default, wxALIGN\_RIGHT and wxALIGN\_BOTTOM have
-their obvious meaning). With proportional resize, a child may also be centered
-in the main orientation using wxALIGN\_CENTER\_VERTICAL (same as
-wxALIGN\_CENTRE\_VERTICAL) and wxALIGN\_CENTER\_HORIZONTAL (same as
-wxALIGN\_CENTRE\_HORIZONTAL) flags. Finally, you can also specify
-wxADJUST\_MINSIZE flag to make the minimal size of the control dynamically adjust
-to the value returned by its \helpref{GetBestSize()}{wxwindowgetbestsize}
-method - this allows, for example, for correct relayouting of a static text
-control even if its text is changed during run-time.}
-
-\docparam{border}{Determines the border width, if the {\it flag} parameter is set to any border.}
+\docparam{flag}{This parameter can be used to set a number of flags
+which can be combined using the binary OR operator |. Two main
+behaviours are defined using these flags. One is the border around a
+window: the {\it border} parameter determines the border width whereas
+the flags given here determine which side(s) of the item that the
+border will be added. The other flags determine how the sizer item
+behaves when the space allotted to the sizer changes, and is somewhat
+dependent on the specific kind of sizer used.
+
+\twocolwidtha{5cm}%
+\begin{twocollist}\itemsep=0pt
+\twocolitem{\windowstyle{wxTOP}\\
+\windowstyle{wxBOTTOM}\\
+\windowstyle{wxLEFT}\\
+\windowstyle{wxRIGHT}\\
+\windowstyle{wxALL}}{These flags are used to specify which side(s) of
+ the sizer item the {\it border} width will apply to. }
+
+\twocolitem{\windowstyle{wxEXPAND}}{The item will be expanded to fill
+the space assigned to the item.}
+\twocolitem{\windowstyle{wxSHAPED}}{The item will be expanded as much
+as possible while also maintaining its aspect ratio}
+\twocolitem{\windowstyle{wxFIXED\_MINSIZE}}{Normally wxSizers will use
+\helpref{GetAdjustedBestSize}{wxwindowgetadjustedbestsize} to
+determine what the minimal size of window items should be, and will
+use that size to calculate the layout. This allows layouts to
+adjust when an item changes and its {\it best size} becomes
+different. If you would rather have a window item stay the size it
+started with then use wxFIXED\_MINSIZE.}
+\twocolitem{\windowstyle{wxALIGN\_CENTER}\\
+\windowstyle{wxALIGN\_LEFT}\\
+\windowstyle{wxALIGN\_RIGHT}\\
+\windowstyle{wxALIGN\_TOP}\\
+\windowstyle{wxALIGN\_BOTTOM}\\
+\windowstyle{wxALIGN\_CENTER\_VERTICAL}\\
+\windowstyle{wxALIGN\_CENTER\_HORIZONTAL}}{The wxALIGN flags allow you to
+specify the alignment of the item within the space allotted to it by
+the sizer, adjusted for the border if any.}
+\end{twocollist}
+}
+
+\docparam{border}{Determines the border width, if the {\it flag}
+ parameter is set to include any border flag.}
\docparam{userData}{Allows an extra object to be attached to the sizer
item, for use in derived classes when sizing information is more
-complex than the {\it option} and {\it flag} will allow for.}
+complex than the {\it proportion} and {\it flag} will allow for.}
+
+
+\membersection{wxSizer::AddSpacer}\label{wxsizeraddspacer}
+
+\func{void}{AddSpacer}{\param{int }{size}}
+
+Adds non-stretchable space to the sizer. More readable way of calling
+\helpref{Add}{wxsizeradd}(size, size, 0).
+
+
+\membersection{wxSizer::AddStretchSpacer}\label{wxsizeraddstretchspacer}
+
+\func{void}{AddStretchSpacer}{\param{int }{prop = 1}}
+
+Adds stretchable space to the sizer. More readable way of calling
+\helpref{Add}{wxsizeradd}(0, 0, prop).
+
\membersection{wxSizer::CalcMin}\label{wxsizercalcmin}
This method is abstract and has to be overwritten by any derived class.
Here, the sizer will do the actual calculation of its children minimal sizes.
+
+\membersection{wxSizer::Detach}\label{wxsizerdetach}
+
+\func{bool}{Detach}{\param{wxWindow* }{window}}
+
+\func{bool}{Detach}{\param{wxSizer* }{sizer}}
+
+\func{bool}{Detach}{\param{size\_t }{index}}
+
+Detach a child from the sizer without destroying it. {\it window} is the window to be
+detached, {\it sizer} is the equivalent sizer and {\it index} is the position of
+the child in the sizer, typically 0 for the first item. This method does not
+cause any layout or resizing to take place, call \helpref{wxSizer::Layout}{wxsizerlayout}
+to update the layout "on screen" after detaching a child from the sizer.
+
+Returns true if the child item was found and detached, false otherwise.
+
+\wxheading{See also}
+
+\helpref{wxSizer::Remove}{wxsizerremove}
+
+
\membersection{wxSizer::Fit}\label{wxsizerfit}
-\func{void}{Fit}{\param{wxWindow* }{window}}
+\func{wxSize}{Fit}{\param{wxWindow* }{window}}
Tell the sizer to resize the {\it window} to match the sizer's minimal size. This
is commonly done in the constructor of the window itself, see sample in the description
-of \helpref{wxBoxSizer}{wxboxsizer}.
+of \helpref{wxBoxSizer}{wxboxsizer}. Returns the new size.
+
+For a top level window this is the total window size, not client size.
+
+
+\membersection{wxSizer::FitInside}\label{wxsizerfitinside}
+
+\func{void}{FitInside}{\param{wxWindow* }{window}}
+
+Tell the sizer to resize the virtual size of the {\it window} to match the sizer's
+minimal size. This will not alter the on screen size of the window, but may cause
+the addition/removal/alteration of scrollbars required to view the virtual area in
+windows which manage it.
+
+\wxheading{See also}
+
+\helpref{wxScrolledWindow::SetScrollbars}{wxscrolledwindowsetscrollbars},\rtfsp
+\helpref{wxSizer::SetVirtualSizeHints}{wxsizersetvirtualsizehints}
+
+
+\membersection{wxSizer::GetItem}\label{wxsizergetitem}
+
+\func{wxSizerItem *}{GetItem}{\param{wxWindow* }{window}, \param{bool }{recursive = false}}
+
+\func{wxSizerItem *}{GetItem}{\param{wxSizer* }{sizer}, \param{bool }{recursive = false}}
+
+\func{wxSizerItem *}{GetItem}{\param{size\_t }{index}}
+
+Finds item of the sizer which holds given {\it window}, {\it sizer} or is located
+in sizer at position {\it index}.
+Use parameter {\it recursive} to search in subsizers too.
+
+Returns pointer to item or NULL.
+
\membersection{wxSizer::GetSize}\label{wxsizergetsize}
Returns the current size of the sizer.
+
\membersection{wxSizer::GetPosition}\label{wxsizergetposition}
\func{wxPoint}{GetPosition}{\void}
Returns the current position of the sizer.
+
\membersection{wxSizer::GetMinSize}\label{wxsizergetminsize}
\func{wxSize}{GetMinSize}{\void}
size of all the children and their borders or the minimal size set by
\helpref{SetMinSize}{wxsizersetminsize}, depending on which is bigger.
+
+\membersection{wxSizer::Insert}\label{wxsizerinsert}
+
+\func{void}{Insert}{\param{size\_t }{index}, \param{wxWindow* }{window}, \param{int }{proportion = 0},\param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
+
+\func{void}{Insert}{\param{size\_t }{index}, \param{wxSizer* }{sizer}, \param{int }{proportion = 0}, \param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
+
+\func{void}{Insert}{\param{size\_t }{index}, \param{int }{width}, \param{int }{height}, \param{int }{proportion = 0}, \param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
+
+Insert a child into the sizer before any existing item at {\it index}.
+
+\docparam{index}{The position this child should assume in the sizer.}
+
+See \helpref{wxSizer::Add}{wxsizeradd} for the meaning of the other parameters.
+
+
+\membersection{wxSizer::InsertSpacer}\label{wxsizerinsertspacer}
+
+\func{void}{InsertSpacer}{\param{size\_t }{index}, \param{int }{size}}
+
+Inserts non-stretchable space to the sizer. More readable way of calling
+\helpref{Insert}{wxsizerinsert}(size, size, 0).
+
+
+\membersection{wxSizer::InsertStretchSpacer}\label{wxsizerinsertstretchspacer}
+
+\func{void}{InsertStretchSpacer}{\param{size\_t }{index}, \param{int }{prop = 1}}
+
+Inserts stretchable space to the sizer. More readable way of calling
+\helpref{Insert}{wxsizerinsert}(0, 0, prop).
+
+
\membersection{wxSizer::Layout}\label{wxsizerlayout}
\func{void}{Layout}{\void}
to or removed a child (window, other sizer or space) from the sizer while keeping
the current dimension.
+
\membersection{wxSizer::Prepend}\label{wxsizerprepend}
-\func{void}{Prepend}{\param{wxWindow* }{window}, \param{int }{option = 0}, \param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
+\func{void}{Prepend}{\param{wxWindow* }{window}, \param{int }{proportion = 0}, \param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
-\func{void}{Prepend}{\param{wxSizer* }{sizer}, \param{int }{option = 0}, \param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
+\func{void}{Prepend}{\param{wxSizer* }{sizer}, \param{int }{proportion = 0}, \param{int }{flag = 0}, \param{int }{border = 0}, \param{wxObject* }{userData = NULL}}
-\func{void}{Prepend}{\param{int }{width}, \param{int }{height}, \param{int }{option = 0}, \param{int }{flag = 0}, \param{int }{border= 0}, \param{wxObject* }{userData = NULL}}
+\func{void}{Prepend}{\param{int }{width}, \param{int }{height}, \param{int }{proportion = 0}, \param{int }{flag = 0}, \param{int }{border= 0}, \param{wxObject* }{userData = NULL}}
Same as \helpref{wxSizer::Add}{wxsizeradd}, but prepends the items to the beginning of the
list of items (windows, subsizers or spaces) owned by this sizer.
+
+\membersection{wxSizer::PrependSpacer}\label{wxsizerprependspacer}
+
+\func{void}{PrependSpacer}{\param{int }{size}}
+
+Prepends non-stretchable space to the sizer. More readable way of calling
+\helpref{Prepend}{wxsizerprepend}(size, size, 0).
+
+
+\membersection{wxSizer::PrependStretchSpacer}\label{wxsizerprependstretchspacer}
+
+\func{void}{PrepentStretchSpacer}{\param{int }{prop = 1}}
+
+Prepends stretchable space to the sizer. More readable way of calling
+\helpref{Prepend}{wxsizerprepend}(0, 0, prop).
+
+
\membersection{wxSizer::RecalcSizes}\label{wxsizerrecalcsizes}
\func{void}{RecalcSizes}{\void}
Here, the sizer will do the actual calculation of its children's positions
and sizes.
+
\membersection{wxSizer::Remove}\label{wxsizerremove}
\func{bool}{Remove}{\param{wxWindow* }{window}}
\func{bool}{Remove}{\param{wxSizer* }{sizer}}
-\func{bool}{Remove}{\param{int }{nth}}
+\func{bool}{Remove}{\param{size\_t }{index}}
-Removes a child from the sizer. {\it window} is the window to be removed, {\it sizer} is the
-equivalent sizer and {\it nth} is the position of the child in the sizer, typically 0 for
-the first item. This method does not cause any layout or resizing to take place and does
-not delete the window itself. Call \helpref{wxSizer::Layout}{wxsizerlayout} to update
-the layout "on screen" after removing a child fom the sizer.
+Removes a child from the sizer and destroys it. {\it sizer} is the wxSizer to be removed,
+{\it index} is the position of the child in the sizer, typically 0 for the first item.
+This method does not cause any layout or resizing to take place, call
+\helpref{wxSizer::Layout}{wxsizerlayout} to update the layout "on screen" after removing a
+child from the sizer.
+
+{\bf NB:} The method taking a wxWindow* parameter is deprecated. For historical reasons
+it does not destroy the window as would usually be expected from Remove. You should use
+\helpref{wxSizer::Detach}{wxsizerdetach} in new code instead. There is currently no wxSizer
+method that will both detach and destroy a wxWindow item.
+
+Returns true if the child item was found and removed, false otherwise.
-Returns TRUE if the child item was found and removed, FALSE otherwise.
\membersection{wxSizer::SetDimension}\label{wxsizersetdimension}
\func{void}{SetDimension}{\param{int }{x}, \param{int }{y}, \param{int }{width}, \param{int }{height}}
Call this to force the sizer to take the given dimension and thus force the items owned
-by the sizer to resize themselves according to the rules defined by the paramater in the
+by the sizer to resize themselves according to the rules defined by the parameter in the
\helpref{Add}{wxsizeradd} and \helpref{Prepend}{wxsizerprepend} methods.
+
\membersection{wxSizer::SetMinSize}\label{wxsizersetminsize}
\func{void}{SetMinSize}{\param{int }{width}, \param{int }{height}}
as requested by its children or the minimal size set here, depending on which is
bigger.
+
\membersection{wxSizer::SetItemMinSize}\label{wxsizersetitemminsize}
\func{void}{SetItemMinSize}{\param{wxWindow* }{window}, \param{int}{ width}, \param{int}{ height}}
\func{void}{SetItemMinSize}{\param{wxSizer* }{sizer}, \param{int}{ width}, \param{int}{ height}}
-\func{void}{SetItemMinSize}{\param{int}{ pos}, \param{int}{ width}, \param{int}{ height}}
+\func{void}{SetItemMinSize}{\param{size\_t }{index}, \param{int}{ width}, \param{int}{ height}}
Set an item's minimum size by window, sizer, or position. The item will be found recursively
in the sizer's descendants. This function enables an application to set the size of an item
after initial creation.
+
\membersection{wxSizer::SetSizeHints}\label{wxsizersetsizehints}
\func{void}{SetSizeHints}{\param{wxWindow* }{window}}
-Tell the sizer to set the minimal size of the {\it window} to match the sizer's minimal size.
-This is commonly done in the constructor of the window itself, see sample in the description
-of \helpref{wxBoxSizer}{wxboxsizer} if the window is resizable (as are many dialogs under Unix and
-frames on probably all platforms).
+Tell the sizer to set (and \helpref{Fit}{wxsizerfit}) the minimal size of the {\it window} to
+match the sizer's minimal size. This is commonly done in the constructor of the window itself,
+see sample in the description of \helpref{wxBoxSizer}{wxboxsizer} if the window is resizable
+(as are many dialogs under Unix and frames on probably all platforms).
+
+
+\membersection{wxSizer::SetVirtualSizeHints}\label{wxsizersetvirtualsizehints}
+
+\func{void}{SetVirtualSizeHints}{\param{wxWindow* }{window}}
+
+Tell the sizer to set the minimal size of the {\it window} virtual area to match the sizer's
+minimal size. For windows with managed scrollbars this will set them appropriately.
+
+\wxheading{See also}
+
+\helpref{wxScrolledWindow::SetScrollbars}{wxscrolledwindowsetscrollbars}
+
+
+\membersection{wxSizer::Show}\label{wxsizershow}
+
+\func{bool}{Show}{\param{wxWindow* }{window}, \param{bool }{show = true}, \param{bool }{recursive = false}}
+
+\func{bool}{Show}{\param{wxSizer* }{sizer}, \param{bool }{show = true}, \param{bool }{recursive = false}}
+
+\func{bool}{Show}{\param{size\_t }{index}, \param{bool }{show = true}}
+
+Shows or hides the {\it window}, {\it sizer}, or item at {\it index}.
+To make a sizer item disappear or reappear, use Show() followed by Layout().
+Use parameter {\it recursive} to show or hide elements found in subsizers.
+
+Returns true if the child item was found, false otherwise.
+
+Note that this only works with wxBoxSizer and wxFlexGridSizer, since they
+are the only two sizer classes that can size rows/columns independently.
projects / wxWidgets.git / blobdiff