X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9e9ee68e90212f1d9ba9f1cfa05e291463f6ae92..86e7822245592f36cd04022c15690b226494cb65:/docs/latex/wx/image.tex

diff --git a/docs/latex/wx/image.tex b/docs/latex/wx/image.tex
index 8325f4be63..07e43de3ce 100644
--- a/docs/latex/wx/image.tex
+++ b/docs/latex/wx/image.tex
@@ -21,6 +21,7 @@ wxDC::DrawBitmap.
 \wxheading{See also}
 
 \helpref{wxBitmap}{wxbitmap}
+\helpref{wxInitAllImageHandlers}{wxinitallimagehandlers}
 
 \latexignore{\rtfignore{\wxheading{Members}}}
 
@@ -82,13 +83,27 @@ implement wxImage.}
 
 \docparam{mimetype}{MIME type string (for example 'image/jpeg')}
 
-Note : you must call wxImage::AddHandler(new wxJPEGHandler) during application 
+Note : you must call wxImage::AddHandler(new wxJPEGHandler) during application
 initialization in order to work with JPEGs.
 
 \wxheading{See also}
 
 \helpref{wxImage::LoadFile}{wximageloadfile}
 
+\pythonnote{Constructors supported by wxPython are:\par
+\indented{2cm}{\begin{twocollist}
+\twocolitem{\bf{wxImage(name, flag)}}{Loads an image from a file}
+\twocolitem{\bf{wxNullImage()}}{Create a null image (has no size or
+image data)}
+\twocolitem{\bf{wxEmptyImage(width, height)}}{Creates an empty image
+of the given size}
+\twocolitem{\bf{wxImageFromMime(name, mimetype}}{Creates an image from
+the given file of the given mimetype}
+\twocolitem{\bf{wxImageFromBitmap(bitmap)}}{Creates an image from a
+platform-dependent bitmap}
+\end{twocollist}}
+}
+
 \membersection{wxImage::\destruct{wxImage}}
 
 \func{}{\destruct{wxImage}}{\void}
@@ -108,6 +123,7 @@ of a given handler class in an application session.}
 
 \helpref{wxImageHandler}{wximagehandler}
 
+\pythonnote{In wxPython this static method is named \tt{wxImage_AddHandler}.}
 \membersection{wxImage::CleanUpHandlers}
 
 \func{static void}{CleanUpHandlers}{\void}
@@ -263,15 +279,16 @@ Returns TRUE if there is a mask active, FALSE otherwise.
 
 \func{static void}{InitStandardHandlers}{\void}
 
-Adds the standard image format handlers, which, depending on wxWindows
-configuration, can be handlers for Windows BMP (loading), PNG
-(loading and saving) and JPEG (loading and saving) file formats.
+Internal use only. Adds standard image format handlers. It only install BMP
+for the time being, which is use by wxBitmap.
 
-This function is called by wxWindows on startup.
+This function is called by wxWindows on startup, and shouldn't be called by
+the user.
 
 \wxheading{See also}
 
 \helpref{wxImageHandler}{wximagehandler}
+\helpref{wxInitAllImageHandlers}{wxinitallimagehandlers}
 
 \membersection{wxImage::InsertHandler}
 
@@ -288,11 +305,13 @@ of a given handler class in an application session.}
 
 \membersection{wxImage::LoadFile}\label{wximageloadfile}
 
-\func{bool}{LoadFile}{\param{const wxString\&}{ name}, \param{long}{ type}}
+\func{bool}{LoadFile}{\param{const wxString\&}{ name}, \param{long}{ type = wxBITMAP\_TYPE\_ANY}}
 
 \func{bool}{LoadFile}{\param{const wxString\&}{ name}, \param{const wxString\&}{ mimetype}}
 
-Loads an image from a file.
+Loads an image from a file. If no handler type is provided, the library will
+try to use wxBITMAP\_TYPE\_BMP or all known handlers previously installed
+through a call to \helpref{wxImage::InitAllHandlers}{wximageinitallhandlers}.
 
 \func{bool}{LoadFile}{\param{wxInputStream\&}{ stream}, \param{long}{ type}}
 
@@ -313,8 +332,11 @@ The meaning of {\it stream} data is determined by the {\it type} parameter.}
 \twocolwidtha{5cm}%
 \begin{twocollist}
 \twocolitem{{\bf wxBITMAP\_TYPE\_BMP}}{Load a Windows image file.}
-\twocolitem{{\bf wxBITMAP\_TYPE\_PNG}}{Load a PNG image file.}
+\twocolitem{{\bf wxBITMAP\_TYPE\_GIF}}{Load a GIF image file.}
 \twocolitem{{\bf wxBITMAP\_TYPE\_JPEG}}{Load a JPEG image file.}
+\twocolitem{{\bf wxBITMAP\_TYPE\_PCX}}{Load a PCX image file.}
+\twocolitem{{\bf wxBITMAP\_TYPE\_PNG}}{Load a PNG image file.}
+\twocolitem{{\bf wxBITMAP\_TYPE\_PNM}}{Load a PNM image file.}
 \end{twocollist}
 
 The validity of these flags depends on the platform and wxWindows configuration.}
@@ -329,6 +351,17 @@ TRUE if the operation succeeded, FALSE otherwise.
 
 \helpref{wxImage::SaveFile}{wximagesavefile}
 
+\pythonnote{In place of a single overloaded method name, wxPython
+implements the following methods:\par
+\indented{2cm}{\begin{twocollist}
+\twocolitem{\bf{LoadFile(filename, type)}}{Loads an image of the given
+type from a file}
+\twocolitem{\bf{LoadMimeFile(filename, mimetype)}}{Loads an image of the given
+mimetype from a file}
+\end{twocollist}}
+}
+
+
 \membersection{wxImage::Ok}\label{wximageok}
 
 \constfunc{bool}{Ok}{\void}
@@ -397,21 +430,73 @@ Depending on how wxWindows has been configured, not all formats may be available
 
 \helpref{wxImage::LoadFile}{wximageloadfile}
 
+\pythonnote{In place of a single overloaded method name, wxPython
+implements the following methods:\par
+\indented{2cm}{\begin{twocollist}
+\twocolitem{\bf{SaveFile(filename, type)}}{Saves the image using the given
+type to the named file}
+\twocolitem{\bf{SaveMimeFile(filename, mimetype)}}{Saves the image using the given
+mimetype to the named file}
+\end{twocollist}}
+}
+
+\membersection{wxImage::Rescale}\label{wximagerescale}
+
+\func{wxImage}{Rescale}{\param{int}{ width}, \param{int}{ height}}
+
+Changes the size of the image in-place: after a call to this function, the
+image will have the given width and height.
+
+\wxheading{See also}
+
+\helpref{Scale}{wximagescale}
+
 \membersection{wxImage::Scale}\label{wximagescale}
 
-\func{wxImage}{Scale}{\param{int}{ width}, \param{int}{ height}}
+\constfunc{wxImage}{Scale}{\param{int}{ width}, \param{int}{ height}}
 
 Returns a scaled version of the image. This is also useful for
 scaling bitmaps in general as the only other way to scale bitmaps
-is to blit a wxMemoryDC into another wxMemoryDC. Windows can do such 
-scaling itself but in the GTK port, scaling bitmaps is done using 
-this routine internally.
+is to blit a wxMemoryDC into another wxMemoryDC.
+
+NB: although Windows can do such scaling itself but in the GTK port, scaling
+bitmaps is done using this routine internally.
+
+Example:
+
+\begin{verbatim}
+    // get the bitmap from somewhere
+    wxBitmap bmp = ...;
+
+    // rescale it to have size of 32*32
+    if ( bmp.GetWidth() != 32 || bmp.GetHeight() != 32 )
+    {
+        wxImage image(bmp);
+        bmp = image.Scale(32, 32).ConvertToBitmap();
+
+        // another possibility:
+        image.Rescale(32, 32);
+        bmp = image;
+    }
+
+\end{verbatim}
+
+\wxheading{See also}
+
+\helpref{Rescale}{wximagerescale}
+
+\membersection{wxImage::GetSubImage}\label{wximagegetsubimage}
+
+\constfunc{wxImage}{GetSubImage}{\param{const wxRect&}{rect}}
+
+Returns a sub image of the current one as long as the rect belongs entirely to 
+the image.
 
 \membersection{wxImage::SetData}\label{wximagesetdata}
 
 \func{void}{SetData}{\param{unsigned char*}{data}}
 
-Sets the image data without performing checks. The data given must have 
+Sets the image data without performing checks. The data given must have
 the size (width*height*3) or results will be unexpected. Don't use this
 method if you aren't sure you know what you are doing.
 
@@ -509,6 +594,7 @@ created by IJG.)
 \wxheading{See also}
 
 \helpref{wxImage}{wximage}
+\helpref{wxInitAllImageHandlers}{wxinitallimagehandlers}
 
 \latexignore{\rtfignore{\wxheading{Members}}}