X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f6bcfd974ef26faf6f91a62cac09827e09463fd1..fbb7dfffb098c0c1a71f15674fba0d3af9609028:/docs/latex/wx/cursor.tex?ds=inline diff --git a/docs/latex/wx/cursor.tex b/docs/latex/wx/cursor.tex index 6d0c748903..3f3d1a5d24 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. @@ -67,6 +72,16 @@ icon file, to specify the cursor hotspot relative to the top left of the image. Constructs a cursor using a cursor identifier. +\func{}{wxCursor}{\param{const wxImage\&}{ image}} + +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. 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. @@ -86,7 +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: @@ -111,6 +126,9 @@ is enabled in setup.h). Specify {\it hotSpotX} and {\it hotSpotY}.} \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.} @@ -134,6 +152,8 @@ is enabled in 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\_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.} @@ -148,20 +168,77 @@ hotSpotY=0)}}{Constructs a cursor from a filename} \end{twocollist}} } -\membersection{wxCursor::\destruct{wxCursor}} +\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 -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}