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[wxWidgets.git] / docs / latex / wx / cursor.tex

diff --git a/docs/latex/wx/cursor.tex b/docs/latex/wx/cursor.tex
index 59c61db2ebe31144d22c610a6749a1cd2644ea7f..3f3d1a5d2490e9414d62b7d9daea5ac750c61f7e 100644 (file)
--- a/docs/latex/wx/cursor.tex
+++ b/docs/latex/wx/cursor.tex
@@ -10,7 +10,7 @@ conditional compilation will probably be required (see \helpref{wxIcon}{wxicon}
 an example).
 
 A single cursor object may be used in many windows (any subwindow type).
 an example).
 
 A single cursor object may be used in many windows (any subwindow type).

-The wxWindows convention is to set the cursor for a window, as in X,
+The wxWidgets convention is to set the cursor for a window, as in X,

 rather than to set it globally as in MS Windows, although a
 global \helpref{::wxSetCursor}{wxsetcursor} is also available for MS Windows use.
 
 rather than to set it globally as in MS Windows, although a
 global \helpref{::wxSetCursor}{wxsetcursor} is also available for MS Windows use.
 


@@ -20,6 +20,22 @@ global \helpref{::wxSetCursor}{wxsetcursor} is also available for MS Windows use
 \helpref{wxGDIObject}{wxgdiobject}\\
 \helpref{wxObject}{wxobject}
 
 \helpref{wxGDIObject}{wxgdiobject}\\
 \helpref{wxObject}{wxobject}
 

+\wxheading{Include files}
+
+<wx/cursor.h>
+
+\wxheading{Predefined objects}
+
+Objects:
+
+{\bf wxNullCursor}
+
+Pointers:
+
+{\bf wxSTANDARD\_CURSOR\\
+wxHOURGLASS\_CURSOR\\
+wxCROSS\_CURSOR}
+

 \wxheading{See also}
 
 \helpref{wxBitmap}{wxbitmap}, \helpref{wxIcon}{wxicon}, \helpref{wxWindow::SetCursor}{wxwindowsetcursor},\rtfsp
 \wxheading{See also}
 
 \helpref{wxBitmap}{wxbitmap}, \helpref{wxIcon}{wxicon}, \helpref{wxWindow::SetCursor}{wxwindowsetcursor},\rtfsp


@@ -27,35 +43,46 @@ global \helpref{::wxSetCursor}{wxsetcursor} is also available for MS Windows use
 
 \latexignore{\rtfignore{\wxheading{Members}}}
 
 
 \latexignore{\rtfignore{\wxheading{Members}}}
 

-\membersection{wxCursor::wxCursor}\label{wxcursorconstr}
+\membersection{wxCursor::wxCursor}\label{wxcursorctor}

 
 \func{}{wxCursor}{\void}
 
 Default constructor.
 
 
 \func{}{wxCursor}{\void}
 
 Default constructor.
 

-\func{}{wxCursor}{\param{const char}{ bits[]}, \param{const int }{width},
- \param{const int }{ height}, \param{const int }{hotSpotX=-1}, \param{const int }{hotSpotY=-1}, \param{const char }{maskBits[]=NULL}}
+\func{}{wxCursor}{\param{const char}{ bits[]}, \param{int }{width},
+ \param{int }{ height}, \param{int }{hotSpotX=-1}, \param{int }{hotSpotY=-1}, \param{const char }{maskBits[]=NULL},
+ \param{wxColour*}{ fg=NULL}, \param{wxColour*}{ bg=NULL}}

 
 

-Constructs a cursor by passing an array of bits (Motif and Xt only). {\it maskBits} is used only under Motif.
+Constructs a cursor by passing an array of bits (Motif and GTK+ only). {\it maskBits} is used only under
+Motif and GTK+. The parameters {\it fg} and {\it bg} are only present on GTK+, and force the
+cursor to use particular background and foreground colours.

 
 If either {\it hotSpotX} or {\it hotSpotY} is -1, the hotspot will be the centre of the cursor image (Motif only).
 
 
 If either {\it hotSpotX} or {\it hotSpotY} is -1, the hotspot will be the centre of the cursor image (Motif only).
 

-\func{}{wxCursor}{\param{const wxString\& }{cursorName}, \param{const long }{type}, \param{const int }{hotSpotX=0}, \param{const int }{hotSpotY=0}}
+\func{}{wxCursor}{\param{const wxString\& }{cursorName}, \param{long }{type}, \param{int }{hotSpotX=0}, \param{int }{hotSpotY=0}}

 
 Constructs a cursor by passing a string resource name or filename.
 
 
 Constructs a cursor by passing a string resource name or filename.
 

+On MacOS when specifying a string resource name, first the color cursors 'crsr' and then the black/white cursors 'CURS' in the resource chain are scanned through.
+

 {\it hotSpotX} and {\it hotSpotY} are currently only used under Windows when loading from an
 icon file, to specify the cursor hotspot relative to the top left of the image.
 
 {\it hotSpotX} and {\it hotSpotY} are currently only used under Windows when loading from an
 icon file, to specify the cursor hotspot relative to the top left of the image.
 

-\func{}{wxCursor}{\param{const int}{ cursorId}}
+\func{}{wxCursor}{\param{int}{ cursorId}}

 
 Constructs a cursor using a cursor identifier.
 
 
 Constructs a cursor using a cursor identifier.
 

-\func{}{wxCursor}{\param{const wxCursor\&}{ cursor}}
+\func{}{wxCursor}{\param{const wxImage\&}{ image}}

 
 

-Copy constructor. This uses reference counting so is a cheap operation.
+Constructs a cursor from a wxImage. The cursor is monochrome, colors with the RGB elements all greater
+than 127 will be foreground, colors less than this background. The mask (if any) will be used as transparent.

 
 

-\func{}{wxCursor}{\param{const wxCursor*}{ cursor}}
+In MSW the foreground will be white and the background black. If the cursor is larger than 32x32 it is resized.
+In GTK, the two most frequent colors will be used for foreground and background. The cursor will be displayed
+at the size of the image.
+On MacOS if the cursor is larger than 16x16 it is resized and currently only shown as black/white (mask respected).
+
+\func{}{wxCursor}{\param{const wxCursor\&}{ cursor}}

 
 Copy constructor. This uses reference counting so is a cheap operation.
 
 
 Copy constructor. This uses reference counting so is a cheap operation.
 


@@ -74,7 +101,7 @@ Copy constructor. This uses reference counting so is a cheap operation.
 \docparam{hotSpotY}{Hotspot y coordinate.}
 
 \docparam{type}{Icon type to load. Under Motif, {\it type} defaults to {\bf wxBITMAP\_TYPE\_XBM}. Under Windows,
 \docparam{hotSpotY}{Hotspot y coordinate.}
 
 \docparam{type}{Icon type to load. Under Motif, {\it type} defaults to {\bf wxBITMAP\_TYPE\_XBM}. Under Windows,

-it defaults to {\bf wxBITMAP\_TYPE\_CUR\_RESOURCE}.
+it defaults to {\bf wxBITMAP\_TYPE\_CUR\_RESOURCE}. Under MacOS, it defaults to {\bf wxBITMAP\_TYPE\_MACCURSOR\_RESOURCE}.

 
 Under X, the permitted cursor types are:
 
 
 Under X, the permitted cursor types are:
 


@@ -88,10 +115,10 @@ Under Windows, the permitted types are:
 \twocolwidtha{6cm}
 \begin{twocollist}\itemsep=0pt
 \twocolitem{\windowstyle{wxBITMAP\_TYPE\_CUR}}{Load a cursor from a .cur cursor file (only if USE\_RESOURCE\_LOADING\_IN\_MSW
 \twocolwidtha{6cm}
 \begin{twocollist}\itemsep=0pt
 \twocolitem{\windowstyle{wxBITMAP\_TYPE\_CUR}}{Load a cursor from a .cur cursor file (only if USE\_RESOURCE\_LOADING\_IN\_MSW

-is enabled in wx\_setup.h).}
+is enabled in setup.h).}

 \twocolitem{\windowstyle{wxBITMAP\_TYPE\_CUR\_RESOURCE}}{Load a Windows resource (as specified in the .rc file).}
 \twocolitem{\windowstyle{wxBITMAP\_TYPE\_ICO}}{Load a cursor from a .ico icon file (only if USE\_RESOURCE\_LOADING\_IN\_MSW
 \twocolitem{\windowstyle{wxBITMAP\_TYPE\_CUR\_RESOURCE}}{Load a Windows resource (as specified in the .rc file).}
 \twocolitem{\windowstyle{wxBITMAP\_TYPE\_ICO}}{Load a cursor from a .ico icon file (only if USE\_RESOURCE\_LOADING\_IN\_MSW

-is enabled in wx\_setup.h). Specify {\it hotSpotX} and {\it hotSpotY}.}
+is enabled in setup.h). Specify {\it hotSpotX} and {\it hotSpotY}.}

 \end{twocollist}}
 
 \docparam{cursorId}{A stock cursor identifier. May be one of:
 \end{twocollist}}
 
 \docparam{cursorId}{A stock cursor identifier. May be one of:


@@ -99,6 +126,9 @@ is enabled in wx\_setup.h). Specify {\it hotSpotX} and {\it hotSpotY}.}
 \twocolwidtha{6cm}
 \begin{twocollist}\itemsep=0pt
 \twocolitem{{\bf wxCURSOR\_ARROW}}{A standard arrow cursor.}
 \twocolwidtha{6cm}
 \begin{twocollist}\itemsep=0pt
 \twocolitem{{\bf wxCURSOR\_ARROW}}{A standard arrow cursor.}

+\twocolitem{{\bf wxCURSOR\_RIGHT\_ARROW}}{A standard arrow cursor
+pointing to the right.}
+\twocolitem{{\bf wxCURSOR\_BLANK}}{Transparent cursor.}

 \twocolitem{{\bf wxCURSOR\_BULLSEYE}}{Bullseye cursor.}
 \twocolitem{{\bf wxCURSOR\_CHAR}}{Rectangular character cursor.}
 \twocolitem{{\bf wxCURSOR\_CROSS}}{A cross cursor.}
 \twocolitem{{\bf wxCURSOR\_BULLSEYE}}{Bullseye cursor.}
 \twocolitem{{\bf wxCURSOR\_CHAR}}{Rectangular character cursor.}
 \twocolitem{{\bf wxCURSOR\_CROSS}}{A cross cursor.}


@@ -122,26 +152,93 @@ is enabled in wx\_setup.h). Specify {\it hotSpotX} and {\it hotSpotY}.}
 \twocolitem{{\bf wxCURSOR\_SPRAYCAN}}{A spraycan cursor.}
 \twocolitem{{\bf wxCURSOR\_WAIT}}{A wait cursor.}
 \twocolitem{{\bf wxCURSOR\_WATCH}}{A watch cursor.}
 \twocolitem{{\bf wxCURSOR\_SPRAYCAN}}{A spraycan cursor.}
 \twocolitem{{\bf wxCURSOR\_WAIT}}{A wait cursor.}
 \twocolitem{{\bf wxCURSOR\_WATCH}}{A watch cursor.}

+\twocolitem{{\bf wxCURSOR\_ARROWWAIT}}{A cursor with both an arrow and
+an hourglass, (windows.)}

 \end{twocollist}\twocolwidtha{5cm}
 
 Note that not all cursors are available on all platforms.}
 
 \docparam{cursor}{Pointer or reference to a cursor to copy.}
 
 \end{twocollist}\twocolwidtha{5cm}
 
 Note that not all cursors are available on all platforms.}
 
 \docparam{cursor}{Pointer or reference to a cursor to copy.}
 

-\membersection{wxCursor::\destruct{wxCursor}}
+\pythonnote{Constructors supported by wxPython are:\par
+\indented{2cm}{\begin{twocollist}
+\twocolitem{{\bf wxCursor(name, flags, hotSpotX=0,
+hotSpotY=0)}}{Constructs a cursor from a filename}
+\twocolitem{{\bf wxStockCursor(id)}}{Constructs a stock cursor }
+\end{twocollist}}
+}
+
+\perlnote{Constructors supported by wxPerl are:\par
+\begin{itemize}
+\item{Wx::Cursor->new( name, type, hotSpotX = 0, hotSpotY = 0 )}
+\item{Wx::Cursor->new( id )}
+\item{Wx::Cursor->new( image )}
+\item{Wx::Cursor->newData( bits, width, height, hotSpotX = -1, hotSpotY = -1, maskBits = 0 )}
+\end{itemize}
+}
+
+\wxheading{Example}
+
+The following is an example of creating a
+cursor from 32x32 bitmap data ({\tt down\_bits}) and a mask
+({\tt down\_mask}) where 1 is black and 0 is white for
+the bits, and 1 is opaque and 0 is transparent for
+the mask. It works on Windows and GTK+.
+
+\begin{verbatim}
+static char down_bits[] = { 255, 255, 255, 255, 31,
+  255, 255, 255, 31, 255, 255, 255, 31, 255, 255, 255,
+  31, 255, 255, 255, 31, 255, 255, 255, 31, 255, 255,
+  255, 31, 255, 255, 255, 31, 255, 255, 255, 25, 243,
+  255, 255, 19, 249, 255, 255, 7, 252, 255, 255, 15, 254,
+  255, 255, 31, 255, 255, 255, 191, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255 };
+
+static char down_mask[] = { 240, 1, 0, 0, 240, 1,
+  0, 0, 240, 1, 0, 0, 240, 1, 0, 0, 240, 1, 0, 0, 240, 1,
+  0, 0, 240, 1, 0, 0, 240, 1, 0, 0, 255, 31, 0, 0, 255,
+  31, 0, 0, 254, 15, 0, 0, 252, 7, 0, 0, 248, 3, 0, 0,
+  240, 1, 0, 0, 224, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0 };
+
+#ifdef __WXMSW__
+wxBitmap down_bitmap(down_bits, 32, 32);
+wxBitmap down_mask_bitmap(down_mask, 32, 32);
+
+down_bitmap.SetMask(new wxMask(down_mask_bitmap));
+wxImage down_image = down_bitmap.ConvertToImage();
+down_image.SetOption(wxIMAGE_OPTION_CUR_HOTSPOT_X, 6);
+down_image.SetOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y, 14);
+wxCursor down_cursor = wxCursor(down_image);
+#else
+wxCursor down_cursor = wxCursor(down_bits, 32, 32,
+  6, 14, down_mask, wxWHITE, wxBLACK);
+#endif
+\end{verbatim}
+
+\membersection{wxCursor::\destruct{wxCursor}}\label{wxcursordtor}

 
 \func{}{\destruct{wxCursor}}{\void}
 
 Destroys the cursor. A cursor can be reused for more
 than one window, and does not get destroyed when the window is
 
 \func{}{\destruct{wxCursor}}{\void}
 
 Destroys the cursor. A cursor can be reused for more
 than one window, and does not get destroyed when the window is

-destroyed. wxWindows destroys all cursors on application exit, although
-it's best to clean them up explicitly.
+destroyed. wxWidgets destroys all cursors on application exit, although
+it is best to clean them up explicitly.

 
 \membersection{wxCursor::Ok}\label{wxcursorok}
 
 \constfunc{bool}{Ok}{\void}
 
 
 \membersection{wxCursor::Ok}\label{wxcursorok}
 
 \constfunc{bool}{Ok}{\void}
 

-Returns TRUE if cursor data is present.
+Returns true if cursor data is present.

 
 \membersection{wxCursor::operator $=$}\label{wxcursorassignment}
 
 
 \membersection{wxCursor::operator $=$}\label{wxcursorassignment}