Mercurial > sdl-ios-xcode
diff src/video/bwindow/SDL_sysmouse.cc @ 0:74212992fb08
Initial revision
author | Sam Lantinga <slouken@lokigames.com> |
---|---|
date | Thu, 26 Apr 2001 16:45:43 +0000 |
parents | |
children | e8157fcb3114 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/video/bwindow/SDL_sysmouse.cc Thu Apr 26 16:45:43 2001 +0000 @@ -0,0 +1,146 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Sam Lantinga + slouken@devolution.com +*/ + +#ifdef SAVE_RCSID +static char rcsid = + "@(#) $Id$"; +#endif + +#include <stdlib.h> +#include <string.h> + +#include <AppKit.h> +#include <GameKit.h> + +#include "SDL_error.h" +#include "SDL_BWin.h" + +extern "C" { + +#include "SDL_sysmouse_c.h" + +/* Convert bits to padded bytes */ +#define PADDED_BITS(bits) ((bits+7)/8) + +/* The implementation dependent data for the window manager cursor */ +struct WMcursor { + char *bits; +}; + +/* Can this be done in the BeOS? */ +WMcursor *BE_CreateWMCursor(_THIS, + Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) +{ + WMcursor *cursor; + int allowed_x; + int allowed_y; + int run, pad, i; + char *cptr; + + allowed_x = 16; /* BeOS limitation */ + allowed_y = 16; /* BeOS limitation */ + if ( (w > allowed_x) || (h > allowed_y) ) { + SDL_SetError("Only cursors of dimension (%dx%d) are allowed", + allowed_x, allowed_y); + return(NULL); + } + + /* Allocate the cursor */ + cursor = (WMcursor *)malloc(sizeof(WMcursor)); + if ( cursor == NULL ) { + SDL_OutOfMemory(); + return(NULL); + } + cursor->bits = (char *)malloc(4+2*((allowed_x/8)*allowed_y)); + if ( cursor->bits == NULL ) { + free(cursor); + SDL_OutOfMemory(); + return(NULL); + } + cursor->bits[0] = allowed_y; /* Size of the cursor */ + cursor->bits[1] = 1; /* Bit depth of cursor */ + cursor->bits[2] = hot_y; + cursor->bits[3] = hot_x; + cptr = &cursor->bits[4]; + + /* Pad out to the normal cursor size */ + run = PADDED_BITS(w); + pad = PADDED_BITS(allowed_x)-run; + for ( i=0; i<h; ++i ) { + memcpy(cptr, data, run); + memset(cptr+run, 0, pad); + data += run; + cptr += (run+pad); + } + for ( ; i<allowed_y; ++i ) { + memset(cptr, 0, run+pad); + cptr += (run+pad); + } + for ( i=0; i<h; ++i ) { + /* FIXME: The mask should be OR'd with the data to turn + inverted color pixels black, since inverted color pixels + aren't supported under BeOS. + */ + memcpy(cptr, mask, run); + memset(cptr+run, 0, pad); + mask += run; + cptr += (run+pad); + } + for ( ; i<allowed_y; ++i ) { + memset(cptr, 0, run+pad); + cptr += (run+pad); + } + return(cursor); +} + +int BE_ShowWMCursor(_THIS, WMcursor *cursor) +{ + if ( be_app->Lock() ) { + if ( cursor == NULL ) { + if ( SDL_BlankCursor != NULL ) { + be_app->SetCursor(SDL_BlankCursor->bits); + } + } else { + be_app->SetCursor(cursor->bits); + } + be_app->Unlock(); + } + return(1); +} + +void BE_FreeWMCursor(_THIS, WMcursor *cursor) +{ + free(cursor->bits); + free(cursor); +} + +/* Implementation by Christian Bauer <cbauer@student.physik.uni-mainz.de> */ +void BE_WarpWMCursor(_THIS, Uint16 x, Uint16 y) +{ + BPoint pt(x, y); + SDL_Win->Lock(); + SDL_Win->ConvertToScreen(&pt); + SDL_Win->Unlock(); + set_mouse_position((int32)pt.x, (int32)pt.y); +} + +}; /* Extern C */