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SDL_macmouse.c
130 lines (108 loc) · 2.85 KB
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SDL_macmouse.c
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/*
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 <stdio.h>
#if TARGET_API_MAC_CARBON
#include <Carbon.h>
#else
#include <Quickdraw.h>
#endif
/* Routines that are not supported by the Carbon API... */
#if !TARGET_API_MAC_CARBON
#include <CursorDevices.h>
#endif
#include "SDL_error.h"
#include "SDL_mouse.h"
#include "SDL_macmouse_c.h"
/* The implementation dependent data for the window manager cursor */
struct WMcursor {
Cursor curs;
};
void Mac_FreeWMCursor(_THIS, WMcursor *cursor)
{
free(cursor);
}
WMcursor *Mac_CreateWMCursor(_THIS,
Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
{
WMcursor *cursor;
int row, bytes;
/* Allocate the cursor memory */
cursor = (WMcursor *)malloc(sizeof(WMcursor));
if ( cursor == NULL ) {
SDL_OutOfMemory();
return(NULL);
}
memset(cursor, 0, sizeof(*cursor));
bytes = (w/8);
if ( bytes > 2 ) {
bytes = 2;
}
for ( row=0; row<h && (row < 16); ++row ) {
memcpy(&cursor->curs.data[row], data, bytes);
data += w/8;
}
for ( row=0; row<h && (row < 16); ++row ) {
memcpy(&cursor->curs.mask[row], mask, bytes);
mask += w/8;
}
cursor->curs.hotSpot.h = hot_x;
cursor->curs.hotSpot.v = hot_y;
/* That was easy. :) */
return(cursor);
}
int Mac_cursor_showing = 1;
int Mac_ShowWMCursor(_THIS, WMcursor *cursor)
{
if ( cursor == NULL ) {
if ( Mac_cursor_showing ) {
HideCursor();
Mac_cursor_showing = 0;
}
} else {
SetCursor(&cursor->curs);
if ( ! Mac_cursor_showing ) {
ShowCursor();
Mac_cursor_showing = 1;
}
}
return(1);
}
void Mac_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
{
#if !TARGET_API_MAC_CARBON
CursorDevice *cursordevice;
cursordevice = nil;
CursorDeviceNextDevice(&cursordevice);
if ( cursordevice != nil ) {
WindowPtr saveport;
Point where;
GetPort(&saveport);
SetPort(SDL_Window);
where.h = x;
where.v = y;
LocalToGlobal(&where);
SetPort(saveport);
CursorDeviceMoveTo(cursordevice, where.h, where.v);
}
#endif /* !TARGET_API_MAC_CARBON */
}