Loads a bitmap from a file or resource.
+\func{}{wxBitmap}{\param{const wxImage\&}{ img}, \param{int}{ depth = -1}}
+
+Creates bitmap object from the image. This has to be done
+to actually display an image as you cannot draw an image directly on a window.
+The resulting bitmap will use the provided colour depth (or that of the
+current system if depth is -1) which entails that a colour reduction has
+to take place.
+
+When in 8-bit mode (PseudoColour mode), the GTK port will use a color cube created
+on program start-up to look up colors. This ensures a very fast conversion, but
+the image quality won't be perfect (and could be better for photo images using more
+sophisticated dithering algorithms).
+
+On Windows, if there is a palette present (set with SetPalette), it will be used when
+creating the wxBitmap (most useful in 8-bit display mode). On other platforms,
+the palette is currently ignored.
+
\wxheading{Parameters}
\docparam{bits}{Specifies an array of pixel values.}
\twocolwidtha{5cm}
\begin{twocollist}
-\twocolitem{{\bf \indexit{wxBITMAP\_TYPE\_BMP}}}{Load a Windows bitmap file.}
-\twocolitem{{\bf \indexit{wxBITMAP\_TYPE\_BMP\_RESOURCE}}}{Load a Windows bitmap from the resource database.}
-\twocolitem{{\bf \indexit{wxBITMAP\_TYPE\_GIF}}}{Load a GIF bitmap file.}
-\twocolitem{{\bf \indexit{wxBITMAP\_TYPE\_XBM}}}{Load an X bitmap file.}
-\twocolitem{{\bf \indexit{wxBITMAP\_TYPE\_XPM}}}{Load an XPM bitmap file.}
-\twocolitem{{\bf \indexit{wxBITMAP\_TYPE\_RESOURCE}}}{Load a Windows resource name.}
+\twocolitem{\indexit{wxBITMAP\_TYPE\_BMP}}{Load a Windows bitmap file.}
+\twocolitem{\indexit{wxBITMAP\_TYPE\_BMP\_RESOURCE}}{Load a Windows bitmap from the resource database.}
+\twocolitem{\indexit{wxBITMAP\_TYPE\_GIF}}{Load a GIF bitmap file.}
+\twocolitem{\indexit{wxBITMAP\_TYPE\_XBM}}{Load an X bitmap file.}
+\twocolitem{\indexit{wxBITMAP\_TYPE\_XPM}}{Load an XPM bitmap file.}
+\twocolitem{\indexit{wxBITMAP\_TYPE\_RESOURCE}}{Load a Windows resource name.}
\end{twocollist}
The validity of these flags depends on the platform and wxWindows configuration.
XPM data, and XPM. Under wxGTK, the available formats are BMP file, XPM data, XPM file, and PNG file.
Under wxMotif, the available formats are XBM data, XBM file, XPM data, XPM file.
-In addition, wxBitmap can read all formats that \helpref{wxImage}{wximage} can, which currently include
-wxBITMAP\_TYPE\_JPEG, wxBITMAP\_TYPE\_TIF, wxBITMAP\_TYPE\_PNG, wxBITMAP\_TYPE\_GIF, wxBITMAP\_TYPE\_PCX,
+In addition, wxBitmap can read all formats that \helpref{wxImage}{wximage} can, which currently include
+wxBITMAP\_TYPE\_JPEG, wxBITMAP\_TYPE\_TIF, wxBITMAP\_TYPE\_PNG, wxBITMAP\_TYPE\_GIF, wxBITMAP\_TYPE\_PCX,
and wxBITMAP\_TYPE\_PNM. Of course, you must have wxImage handlers loaded. }
+\docparam{img}{Platform-independent wxImage object.}
+
\wxheading{Remarks}
The first form constructs a bitmap object with no data; an assignment or another member function such as Create
\pythonnote{Constructors supported by wxPython are:\par
\indented{2cm}{\begin{twocollist}
\twocolitem{{\bf wxBitmap(name, flag)}}{Loads a bitmap from a file}
-\twocolitem{{\bf wxBitmapFromData(data, type, width, height, depth=1)}}{Creates
-a bitmap from the given data, which can be of arbitrary type.}
-\twocolitem{{\bf wxNoRefBitmap(name, flag)}}{This one won't own the
-reference, so Python won't call the destructor, this is good for toolbars
-and such where the parent will manage the bitmap.}
\twocolitem{{\bf wxEmptyBitmap(width, height, depth = -1)}}{Creates an
empty bitmap with the given specifications}
+\twocolitem{{\bf wxBitmapFromXPMData(listOfStrings)}}{Create a bitmap
+from a Python list of strings whose contents are XPM data.}
+\twocolitem{{\bf wxBitmapFromBits(bits, width, height,
+depth=-1)}}{Create a bitmap from an array of bits contained in a
+string.}
+\twocolitem{{\bf wxBitmapFromImage(image, depth=-1)}}{Convert a
+wxImage to a wxBitmap.}
\end{twocollist}}
}
+\perlnote{Constructors supported by wxPerl are:\par
+\begin{itemize}
+\item{Wx::Bitmap->new( width, height, depth = -1 )}
+\item{Wx::Bitmap->new( name, type )}
+\item{Wx::Bitmap->new( icon )}
+\end{itemize}
+}
+
\membersection{wxBitmap::\destruct{wxBitmap}}
\func{}{\destruct{wxBitmap}}{\void}
This function is called by wxWindows on exit.
+\membersection{wxBitmap::ConvertToImage}\label{wxbitmapconverttoimage}
+
+\func{wxImage}{ConvertToImage}{\void}
+
+Creates an image from a platform-dependent bitmap. This preserves
+mask information so that bitmaps and images can be converted back
+and forth without loss in that respect.
+
\membersection{wxBitmap::Create}\label{wxbitmapcreate}
\func{virtual bool}{Create}{\param{int}{ width}, \param{int}{ height}, \param{int}{ depth = -1}}
\constfunc{wxBitmap}{GetSubBitmap}{\param{const wxRect\&}{rect}}
-Returns a sub bitmap of the current one as long as the rect belongs entirely to
+Returns a sub bitmap of the current one as long as the rect belongs entirely to
the bitmap. This function preserves bit depth and mask information.
\membersection{wxBitmap::InitStandardHandlers}
The validity of these flags depends on the platform and wxWindows configuration.
-In addition, wxBitmap can read all formats that \helpref{wxImage}{wximage} can
+In addition, wxBitmap can read all formats that \helpref{wxImage}{wximage} can
(wxBITMAP\_TYPE\_JPEG, wxBITMAP\_TYPE\_PNG, wxBITMAP\_TYPE\_GIF, wxBITMAP\_TYPE\_PCX, wxBITMAP\_TYPE\_PNM).
(Of course you must have wxImage handlers loaded.) }
The validity of these flags depends on the platform and wxWindows configuration.
-In addition, wxBitmap can save all formats that \helpref{wxImage}{wximage} can
+In addition, wxBitmap can save all formats that \helpref{wxImage}{wximage} can
(wxBITMAP\_TYPE\_JPEG, wxBITMAP\_TYPE\_PNG).
(Of course you must have wxImage handlers loaded.) }
\helpref{wxBitmap::GetMask}{wxbitmapgetmask}, \helpref{wxMask}{wxmask}
-\membersection{wxBitmap::SetOk}
-
-\func{void}{SetOk}{\param{int }{isOk}}
-
-Sets the validity member (does not affect the bitmap data).
-
-\wxheading{Parameters}
-
-\docparam{isOk}{Validity flag.}
+%% VZ: this function is an implementation detail and shouldn't be documented
+%%\membersection{wxBitmap::SetOk}
+%%
+%%\func{void}{SetOk}{\param{int }{isOk}}
+%%
+%%Sets the validity member (does not affect the bitmap data).
+%%
+%%\wxheading{Parameters}
+%%
+%%\docparam{isOk}{Validity flag.}
\membersection{wxBitmap::SetPalette}\label{wxbitmapsetpalette}
projects / wxWidgets.git / blobdiff