X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f6bcfd974ef26faf6f91a62cac09827e09463fd1..bf7945cef10c0844a32e95695c544d829da9293a:/docs/latex/wx/bitmap.tex diff --git a/docs/latex/wx/bitmap.tex b/docs/latex/wx/bitmap.tex index b639c4d397..6428ab392c 100644 --- a/docs/latex/wx/bitmap.tex +++ b/docs/latex/wx/bitmap.tex @@ -10,7 +10,7 @@ either monochrome or colour. \helpref{wxGDIObject}{wxgdiobject}\\ \helpref{wxObject}{wxobject} -\wxheading{Include files} +\wxheading{Include file} @@ -74,6 +74,23 @@ Creates a bitmap from XPM data. 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.} @@ -92,12 +109,12 @@ Its meaning is determined by the {\it type} parameter.} \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. @@ -109,6 +126,8 @@ In addition, wxBitmap can read all formats that \helpref{wxImage}{wximage} can, 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 @@ -164,6 +183,14 @@ empty bitmap with the given specifications} \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} @@ -199,6 +226,14 @@ Deletes all bitmap handlers. 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}}