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SDL_macmouse.c
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SDL_macmouse.c
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2006 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 <stdlib.h>
#include <stdio.h>
#if defined(__APPLE__) && defined(__MACH__)
#include <Carbon/Carbon.h>
#elif TARGET_API_MAC_CARBON && (UNIVERSAL_INTERFACES_VERSION > 0x0335)
#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)
{
SDL_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 *)SDL_malloc(sizeof(WMcursor));
if ( cursor == NULL ) {
SDL_OutOfMemory();
return(NULL);
}
SDL_memset(cursor, 0, sizeof(*cursor));
if (w > 16)
w = 16;
if (h > 16)
h = 16;
bytes = (w+7)/8;
for ( row=0; row<h; ++row ) {
SDL_memcpy(&cursor->curs.data[row], data, bytes);
data += bytes;
}
for ( row=0; row<h; ++row ) {
SDL_memcpy(&cursor->curs.mask[row], mask, bytes);
mask += bytes;
}
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 */
}