%\overview{Overview}{wxbitmapoverview}
%
This class encapsulates the concept of a platform-dependent bitmap,
-either monochrome or colour.
+either monochrome or colour or colour with alpha channel support.
\wxheading{Derived from}
\helpref{wxGDIObject}{wxgdiobject}\\
\helpref{wxObject}{wxobject}
-\wxheading{Include file}
+\wxheading{Include files}
<wx/bitmap.h>
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxBitmap::wxBitmap}\label{wxbitmapconstr}
+\membersection{wxBitmap::wxBitmap}\label{wxbitmapctor}
\func{}{wxBitmap}{\void}
\func{}{wxBitmap}{\param{const wxBitmap\& }{bitmap}}
-Copy constructor.
+Copy constructor, uses \helpref{reference counting}{trefcount}.
+To make a real copy, you can use:
-\func{}{wxBitmap}{\param{void*}{ data}, \param{int}{ type}, \param{int}{ width}, \param{int}{ height}, \param{int}{ depth = -1}}
+\begin{verbatim}
+ wxBitmap newBitmap = oldBitmap.GetSubBitmap(
+ wxRect(0, 0, oldBitmap.GetWidth(), oldBitmap.GetHeight()));
+\end{verbatim}
+
+\func{}{wxBitmap}{\param{const void*}{ data}, \param{int}{ type}, \param{int}{ width}, \param{int}{ height}, \param{int}{ depth = -1}}
Creates a bitmap from the given data which is interpreted in platform-dependent
manner.
Creates a new bitmap. A depth of -1 indicates the depth of the current screen
or visual. Some platforms only support 1 for monochrome and -1 for the current
-colour setting.
+colour setting. Beginning with version 2.5.4 of wxWidgets a depth of 32 including
+an alpha channel is supported under MSW, Mac and GTK+.
-\func{}{wxBitmap}{\param{const char**}{ bits}}
+\func{}{wxBitmap}{\param{const char* const*}{ bits}}
Creates a bitmap from XPM data.
\twocolwidtha{5cm}
\begin{twocollist}
\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\_BMP\_RESOURCE}}{Load a Windows bitmap resource from the executable. Windows only.}
+\twocolitem{\indexit{wxBITMAP\_TYPE\_PICT\_RESOURCE}}{Load a PICT image resource from the executable. Mac OS only.}
\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.
-If all possible wxWindows settings are used, the Windows platform supports BMP file, BMP resource,
+The validity of these flags depends on the platform and wxWidgets configuration.
+If all possible wxWidgets settings are used, the Windows platform supports BMP file, BMP resource,
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.
The sixth form constructs a new bitmap.
-The seventh form constructs a bitmap from pixmap (XPM) data, if wxWindows has been configured
+The seventh form constructs a bitmap from pixmap (XPM) data, if wxWidgets has been configured
to incorporate this feature.
To use this constructor, you must first include an XPM file. For
\end{itemize}
}
-\membersection{wxBitmap::\destruct{wxBitmap}}
+\membersection{wxBitmap::\destruct{wxBitmap}}\label{wxbitmapdtor}
\func{}{\destruct{wxBitmap}}{\void}
data be deleted.
If the application omits to delete the bitmap explicitly, the bitmap will be
-destroyed automatically by wxWindows when the application exits.
+destroyed automatically by wxWidgets when the application exits.
Do not delete a bitmap that is selected into a memory device context.
\helpref{wxBitmapHandler}{wxbitmaphandler}
-\membersection{wxBitmap::CleanUpHandlers}
+\membersection{wxBitmap::CleanUpHandlers}\label{wxbitmapcleanuphandlers}
\func{static void}{CleanUpHandlers}{\void}
Deletes all bitmap handlers.
-This function is called by wxWindows on exit.
+This function is called by wxWidgets on exit.
\membersection{wxBitmap::ConvertToImage}\label{wxbitmapconverttoimage}
Creates a fresh bitmap. If the final argument is omitted, the display depth of
the screen is used.
-\func{virtual bool}{Create}{\param{void*}{ data}, \param{int}{ type}, \param{int}{ width}, \param{int}{ height}, \param{int}{ depth = -1}}
+\func{virtual bool}{Create}{\param{const void*}{ data}, \param{int}{ type}, \param{int}{ width}, \param{int}{ height}, \param{int}{ depth = -1}}
Creates a bitmap from the given data, which can be of arbitrary type.
\docparam{data}{Data whose type depends on the value of {\it type}.}
-\docparam{type}{A bitmap type identifier - see \helpref{wxBitmap::wxBitmap}{wxbitmapconstr} for a list
+\docparam{type}{A bitmap type identifier - see \helpref{wxBitmap::wxBitmap}{wxbitmapctor} for a list
of possible values.}
\wxheading{Return value}
\wxheading{See also}
-\helpref{wxBitmap::wxBitmap}{wxbitmapconstr}
+\helpref{wxBitmap::wxBitmap}{wxbitmapctor}
-\membersection{wxBitmap::FindHandler}
+\membersection{wxBitmap::FindHandler}\label{wxbitmapfindhandler}
\func{static wxBitmapHandler*}{FindHandler}{\param{const wxString\& }{name}}
Finds the handler with the given name.
-\func{static wxBitmapHandler*}{FindHandler}{\param{const wxString\& }{extension}, \param{long}{ bitmapType}}
+\func{static wxBitmapHandler*}{FindHandler}{\param{const wxString\& }{extension}, \param{wxBitmapType}{ bitmapType}}
Finds the handler associated with the given extension and type.
-\func{static wxBitmapHandler*}{FindHandler}{\param{long }{bitmapType}}
+\func{static wxBitmapHandler*}{FindHandler}{\param{wxBitmapType }{bitmapType}}
Finds the handler associated with the given bitmap type.
\helpref{wxBitmapHandler}{wxbitmaphandler}
-\membersection{wxBitmap::GetDepth}
+\membersection{wxBitmap::GetDepth}\label{wxbitmapgetdepth}
\constfunc{int}{GetDepth}{\void}
Gets the colour depth of the bitmap. A value of 1 indicates a
monochrome bitmap.
-\membersection{wxBitmap::GetHandlers}
+\membersection{wxBitmap::GetHandlers}\label{wxbitmapgethandlers}
\func{static wxList\&}{GetHandlers}{\void}
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}
+\membersection{wxBitmap::InitStandardHandlers}\label{wxbitmapinitstandardhandlers}
\func{static void}{InitStandardHandlers}{\void}
-Adds the standard bitmap format handlers, which, depending on wxWindows
+Adds the standard bitmap format handlers, which, depending on wxWidgets
configuration, can be handlers for Windows bitmap, Windows bitmap resource, and XPM.
-This function is called by wxWindows on startup.
+This function is called by wxWidgets on startup.
\wxheading{See also}
\helpref{wxBitmapHandler}{wxbitmaphandler}
-\membersection{wxBitmap::InsertHandler}
+\membersection{wxBitmap::InsertHandler}\label{wxbitmapinserthandler}
\func{static void}{InsertHandler}{\param{wxBitmapHandler*}{ handler}}
\membersection{wxBitmap::LoadFile}\label{wxbitmaploadfile}
-\func{bool}{LoadFile}{\param{const wxString\&}{ name}, \param{long}{ type}}
+\func{bool}{LoadFile}{\param{const wxString\&}{ name}, \param{wxBitmapType}{ type}}
Loads a bitmap from a file or resource.
\twocolwidtha{5cm}
\begin{twocollist}
\twocolitem{{\bf wxBITMAP\_TYPE\_BMP}}{Load a Windows bitmap file.}
-\twocolitem{{\bf wxBITMAP\_TYPE\_BMP\_RESOURCE}}{Load a Windows bitmap from the resource database.}
+\twocolitem{{\bf wxBITMAP\_TYPE\_BMP\_RESOURCE}}{Load a Windows bitmap resource from the executable.}
+\twocolitem{{\bf wxBITMAP\_TYPE\_PICT\_RESOURCE}}{Load a PICT image resource from the executable. Mac OS only.}
\twocolitem{{\bf wxBITMAP\_TYPE\_GIF}}{Load a GIF bitmap file.}
\twocolitem{{\bf wxBITMAP\_TYPE\_XBM}}{Load an X bitmap file.}
\twocolitem{{\bf wxBITMAP\_TYPE\_XPM}}{Load an XPM bitmap file.}
\end{twocollist}
-The validity of these flags depends on the platform and wxWindows configuration.
+The validity of these flags depends on the platform and wxWidgets configuration.
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).
\helpref{wxBitmap::SaveFile}{wxbitmapsavefile}
-\membersection{wxBitmap::Ok}\label{wxbitmapok}
+\membersection{wxBitmap::IsOk}\label{wxbitmapisok}
-\constfunc{bool}{Ok}{\void}
+\constfunc{bool}{IsOk}{\void}
Returns true if bitmap data is present.
-\membersection{wxBitmap::RemoveHandler}
+\membersection{wxBitmap::RemoveHandler}\label{wxbitmapremovehandler}
\func{static bool}{RemoveHandler}{\param{const wxString\& }{name}}
\membersection{wxBitmap::SaveFile}\label{wxbitmapsavefile}
-\func{bool}{SaveFile}{\param{const wxString\& }{name}, \param{int}{ type}, \param{wxPalette* }{palette = NULL}}
+\func{bool}{SaveFile}{\param{const wxString\& }{name}, \param{wxBitmapType}{ type}, \param{wxPalette* }{palette = NULL}}
Saves a bitmap in the named file.
\twocolitem{{\bf wxBITMAP\_TYPE\_XPM}}{Save an XPM bitmap file.}
\end{twocollist}
-The validity of these flags depends on the platform and wxWindows configuration.
+The validity of these flags depends on the platform and wxWidgets configuration.
In addition, wxBitmap can save all formats that \helpref{wxImage}{wximage} can
(wxBITMAP\_TYPE\_JPEG, wxBITMAP\_TYPE\_PNG).
\wxheading{Remarks}
-Depending on how wxWindows has been configured, not all formats may be available.
+Depending on how wxWidgets has been configured, not all formats may be available.
\wxheading{See also}
\helpref{wxBitmap::GetMask}{wxbitmapgetmask}, \helpref{wxMask}{wxmask}
%% VZ: this function is an implementation detail and shouldn't be documented
-%%\membersection{wxBitmap::SetOk}
+%%\membersection{wxBitmap::SetOk}\label{wxbitmapsetok}
%%
%%\func{void}{SetOk}{\param{int }{isOk}}
%%
\func{void}{SetPalette}{\param{const wxPalette\& }{palette}}
-Sets the associated palette.
+Sets the associated palette. (Not implemented under GTK+).
\wxheading{Parameters}
\helpref{wxPalette}{wxpalette}
-\membersection{wxBitmap::SetWidth}
+\membersection{wxBitmap::SetWidth}\label{wxbitmapsetwidth}
\func{void}{SetWidth}{\param{int }{width}}
\docparam{width}{Bitmap width in pixels.}
-\membersection{wxBitmap::operator $=$}
+\membersection{wxBitmap::operator $=$}\label{wxbitmapassign}
\func{wxBitmap\& }{operator $=$}{\param{const wxBitmap\& }{bitmap}}
-Assignment operator. This operator does not copy any data, but instead
-passes a pointer to the data in {\it bitmap} and increments a reference
-counter. It is a fast operation.
+Assignment operator, using \helpref{reference counting}{trefcount}.
\wxheading{Parameters}
Returns 'this' object.
-\membersection{wxBitmap::operator $==$}
+\membersection{wxBitmap::operator $==$}\label{wxbitmapequal}
\func{bool}{operator $==$}{\param{const wxBitmap\& }{bitmap}}
Returns true if the bitmaps were effectively equal, false otherwise.
-\membersection{wxBitmap::operator $!=$}
+\membersection{wxBitmap::operator $!=$}\label{wxbitmapnotequal}
\func{bool}{operator $!=$}{\param{const wxBitmap\& }{bitmap}}
projects / wxWidgets.git / blobdiff