SDL_macmouse.c
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:3k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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@libsdl.org
- */
- #ifdef SAVE_RCSID
- static char rcsid =
- "@(#) $Id: SDL_macmouse.c,v 1.4 2002/04/22 21:38:05 wmay Exp $";
- #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));
- if (w > 16)
- w = 16;
- if (h > 16)
- h = 16;
- bytes = (w+7)/8;
- for ( row=0; row<h; ++row ) {
- memcpy(&cursor->curs.data[row], data, bytes);
- data += bytes;
- }
- for ( row=0; row<h; ++row ) {
- 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 */
- }