synced wxImage,wxBitmap docs with my changes

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9832 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/bitmap.tex

@@ -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.}
@@ -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
@@ -207,6 +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}}

docs/latex/wx/image.tex

@@ -1,14 +1,15 @@
 \section{\class{wxImage}}\label{wximage}
 
 This class encapsulates a platform-independent image. An image can be created
-from data, or using the constructor taking a wxBitmap object. An image
+from data, or using \helpref{wxBitmap::ConvertToImage}{wxbitmapconverttoimage}. An image
 can be loaded from a file in a variety of formats, and is extensible to new formats
 via image format handlers. Functions are available to set and get image bits, so
 it can be used for basic image manipulation.
 
 A wxImage cannot (currently) be drawn directly to a \helpref{wxDC}{wxdc}. Instead, 
 a platform-specific \helpref{wxBitmap}{wxbitmap} object must be created from it using
-the \helpref{ConvertToBitmap}{wximageconverttobitmap} function. This bitmap can then
+the \helpref{wxBitmap::wxBitmap(wxImage,int depth)}{wxbitmapconstr} constructor. 
+This bitmap can then
 be drawn in a device context, using \helpref{wxDC::DrawBitmap}{wxdcdrawbitmap}.
 
 One colour value of the image may be used as a mask colour which will lead to the automatic
@@ -66,7 +67,8 @@ Copy constructor.
 
 \func{}{wxImage}{\param{const wxBitmap\&}{ bitmap}}
 
-Constructs an image from a platform-dependent bitmap. This preserves
+(Deprecated form, use \helpref{wxBitmap::ConvertToImage}{wxbitmapconverttoimage}
+instead.) Constructs 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.
 
@@ -186,19 +188,16 @@ This function is called by wxWindows on exit.
 
 \constfunc{wxBitmap}{ConvertToBitmap}{\void}
 
-Converts the image to a platform-specific bitmap object. This has to be done
+Deprecated, use equivalent \helpref{wxBitmap constructor}{wxbitmapconstr}
-to actually display an image as you cannot draw an image directly on a window.
+(which takes wxImage and depth as its arguments) instead.
-The resulting bitmap will use the colour depth of the current system 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 
+\membersection{wxImage::ConvertToMono}\label{wxbitmapconverttomono}
-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
+\constfunc{wxImage}{ConvertToMono}{\param{unsigned char}{ r}, \param{unsigned char}{ g}, \param{unsigned char}{ b}}
-creating the wxBitmap (most useful in 8-bit display mode). On other platforms,
+
-the palette is currently ignored.
+Returns monochromatic version of the image. The returned image has white
+colour where the original has {\it (r,g,b)} colour and black colour 
+everywhere else.
 
 \membersection{wxImage::Copy}\label{wximagecopy}
 
@@ -327,7 +326,7 @@ Gets the red value of the mask colour.
 \constfunc{const wxPalette\&}{GetPalette}{\void}
 
 Returns the palette associated with the image. Currently the palette is only
-used in ConvertToBitmap under Windows.
+used when converting to wxBitmap under Windows.
 
 Eventually wxImage handlers will set the palette if one exists in the image file.
 
@@ -639,7 +638,7 @@ Example:
     if ( bmp.GetWidth() != 32 || bmp.GetHeight() != 32 )
     {
         wxImage image(bmp);
-        bmp = image.Scale(32, 32).ConvertToBitmap();
+        bmp = wxBitmap(image.Scale(32, 32));
 
         // another possibility:
         image.Rescale(32, 32);
@@ -693,8 +692,8 @@ used, which is a number between 0 and 100 (0 is terrible, 100 is very good).
 
 \func{void}{SetPalette}{\param{const wxPalette\&}{ palette}}
 
-Associates a palette with the image. The palette may be used in ConvertToBitmap (MSW only at present)
+Associates a palette with the image. The palette may be used when converting
-or in file save operations (none as yet).
+wxImage to wxBitmap (MSW only at present) or in file save operations (none as yet).
 
 \membersection{wxImage::SetRGB}\label{wximagesetrgb}