%\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>
+\wxheading{Library}
+
+\helpref{wxCore}{librarieslist}
+
\wxheading{Predefined objects}
Objects:
\func{}{wxBitmap}{\param{const wxBitmap\& }{bitmap}}
-Copy constructor. Note that this does not take a fresh copy of the data,
-but instead makes the internal data point to {\it bitmap}'s data. So
-changing one bitmap will change the other. To make a real copy, you can
-use:
+Copy constructor, uses \helpref{reference counting}{trefcount}.
+To make a real copy, you can use:
\begin{verbatim}
wxBitmap newBitmap = oldBitmap.GetSubBitmap(
wxRect(0, 0, oldBitmap.GetWidth(), oldBitmap.GetHeight()));
\end{verbatim}
-\func{}{wxBitmap}{\param{void*}{ data}, \param{int}{ type}, \param{int}{ width}, \param{int}{ height}, \param{int}{ depth = -1}}
+\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 wxWidgets configuration.
\func{}{\destruct{wxBitmap}}{\void}
-Destroys the wxBitmap object and possibly the underlying bitmap data.
-Because reference counting is used, the bitmap may not actually be
-destroyed at this point - only when the reference count is zero will the
-data be deleted.
+Destructor.
+See \helpref{reference-counted object destruction}{refcountdestruct} for more info.
If the application omits to delete the bitmap explicitly, the bitmap will be
destroyed automatically by wxWidgets when the application exits.
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.
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.
\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.}
\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::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.
\func{void}{SetPalette}{\param{const wxPalette\& }{palette}}
-Sets the associated palette.
+Sets the associated palette. (Not implemented under GTK+).
\wxheading{Parameters}
\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 $==$}\label{wxbitmapequal}
-
-\func{bool}{operator $==$}{\param{const wxBitmap\& }{bitmap}}
-
-Equality operator. This operator tests whether the internal data pointers are
-equal (a fast test).
-
-\wxheading{Parameters}
-
-\docparam{bitmap}{Bitmap to compare with 'this'}
-
-\wxheading{Return value}
-
-Returns true if the bitmaps were effectively equal, false otherwise.
-
-\membersection{wxBitmap::operator $!=$}\label{wxbitmapnotequal}
-
-\func{bool}{operator $!=$}{\param{const wxBitmap\& }{bitmap}}
-
-Inequality operator. This operator tests whether the internal data pointers are
-unequal (a fast test).
-
-\wxheading{Parameters}
-
-\docparam{bitmap}{Bitmap to compare with 'this'}
-
-\wxheading{Return value}
-
-Returns true if the bitmaps were unequal, false otherwise.
projects / wxWidgets.git / blobdiff