diff options
Diffstat (limited to 'distrib/sdl-1.2.15/src/video/bwindow/SDL_sysmouse.cc')
| -rw-r--r-- | distrib/sdl-1.2.15/src/video/bwindow/SDL_sysmouse.cc | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/video/bwindow/SDL_sysmouse.cc b/distrib/sdl-1.2.15/src/video/bwindow/SDL_sysmouse.cc new file mode 100644 index 0000000..9a557d6 --- /dev/null +++ b/distrib/sdl-1.2.15/src/video/bwindow/SDL_sysmouse.cc @@ -0,0 +1,153 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2012 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" + +#include <AppKit.h> +#include <GameKit.h> + +#include "SDL_BWin.h" + +extern "C" { +#include "../SDL_cursor_c.h" +#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 *)SDL_malloc(sizeof(WMcursor)); + if ( cursor == NULL ) { + SDL_OutOfMemory(); + return(NULL); + } + cursor->bits = (char *)SDL_malloc(4+2*((allowed_x/8)*allowed_y)); + if ( cursor->bits == NULL ) { + SDL_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 ) { + SDL_memcpy(cptr, data, run); + SDL_memset(cptr+run, 0, pad); + data += run; + cptr += (run+pad); + } + for ( ; i<allowed_y; ++i ) { + SDL_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. + */ + SDL_memcpy(cptr, mask, run); + SDL_memset(cptr+run, 0, pad); + mask += run; + cptr += (run+pad); + } + for ( ; i<allowed_y; ++i ) { + SDL_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) +{ + SDL_free(cursor->bits); + SDL_free(cursor); +} + +/* Implementation by Christian Bauer <cbauer@student.physik.uni-mainz.de> */ +void BE_WarpWMCursor(_THIS, Uint16 x, Uint16 y) +{ + BPoint pt; + SDL_Win->GetXYOffset(pt.x, pt.y); + pt.x += x; + pt.y += y; + SDL_Win->Lock(); + SDL_Win->ConvertToScreen(&pt); + SDL_Win->Unlock(); + set_mouse_position((int32)pt.x, (int32)pt.y); +} + +/* Check to see if we need to enter or leave mouse relative mode */ +void BE_CheckMouseMode(_THIS) +{ + /* If the mouse is hidden and input is grabbed, we use relative mode */ + if ( !(SDL_cursorstate & CURSOR_VISIBLE) && + (_this->input_grab != SDL_GRAB_OFF) ) { + mouse_relative = 1; + } else { + mouse_relative = 0; + } +} + +}; /* Extern C */ |