X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/15dadf3155f879f8c5031e452566a7b1859e01e3..18832389049b0625c533593e4e2c161095a46c81:/docs/latex/wx/cursor.tex?ds=inline diff --git a/docs/latex/wx/cursor.tex b/docs/latex/wx/cursor.tex index fa34e256cb..1992f48e3a 100644 --- 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). -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. @@ -43,16 +43,19 @@ wxCROSS\_CURSOR} \latexignore{\rtfignore{\wxheading{Members}}} -\membersection{wxCursor::wxCursor}\label{wxcursorconstr} +\membersection{wxCursor::wxCursor}\label{wxcursorctor} \func{}{wxCursor}{\void} Default constructor. \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{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). @@ -60,6 +63,8 @@ If either {\it hotSpotX} or {\it hotSpotY} is -1, the hotspot will be the centre 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. @@ -69,12 +74,13 @@ Constructs a cursor using a cursor identifier. \func{}{wxCursor}{\param{const wxImage\&}{ image}} -Constructs a cursor from a wxImage. The cursor is monochome, colors with the RGB elements all greater +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. In MSW the foreground will be white and the background black. The cursor is resized to 32x32 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 the cursor is resized to 16x16 and currently only shown as black/white (mask respected). \func{}{wxCursor}{\param{const wxCursor\&}{ cursor}} @@ -95,7 +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, -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: @@ -122,6 +128,7 @@ is enabled in setup.h). Specify {\it hotSpotX} and {\it hotSpotY}.} \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.} @@ -161,27 +168,77 @@ hotSpotY=0)}}{Constructs a cursor from a filename} \end{twocollist}} } -\perlnote{Contructors supported by wxPerl are:\par +\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} } -\membersection{wxCursor::\destruct{wxCursor}} +\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 -destroyed. wxWindows destroys all cursors on application exit, although +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} -Returns TRUE if cursor data is present. +Returns true if cursor data is present. \membersection{wxCursor::operator $=$}\label{wxcursorassignment}