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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@devolution.com
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 #include <stdlib.h>
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29 #include <stdio.h>
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30 #if TARGET_API_MAC_CARBON
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31 #include <Carbon.h>
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32 #else
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33 #include <Quickdraw.h>
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34 #endif
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35
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36 /* Routines that are not supported by the Carbon API... */
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37 #if !TARGET_API_MAC_CARBON
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38 #include <CursorDevices.h>
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39 #endif
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40
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41 #include "SDL_error.h"
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42 #include "SDL_mouse.h"
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43 #include "SDL_macmouse_c.h"
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44
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45
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46 /* The implementation dependent data for the window manager cursor */
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47 struct WMcursor {
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48 Cursor curs;
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49 };
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50
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51
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52 void Mac_FreeWMCursor(_THIS, WMcursor *cursor)
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53 {
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54 free(cursor);
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55 }
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56
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57 WMcursor *Mac_CreateWMCursor(_THIS,
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58 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
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59 {
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60 WMcursor *cursor;
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61 int row, bytes;
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62
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63 /* Allocate the cursor memory */
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64 cursor = (WMcursor *)malloc(sizeof(WMcursor));
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65 if ( cursor == NULL ) {
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66 SDL_OutOfMemory();
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67 return(NULL);
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68 }
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69 memset(cursor, 0, sizeof(*cursor));
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70
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71 bytes = (w/8);
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72 if ( bytes > 2 ) {
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73 bytes = 2;
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74 }
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75 for ( row=0; row<h && (row < 16); ++row ) {
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76 memcpy(&cursor->curs.data[row], data, bytes);
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77 data += w/8;
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78 }
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79 for ( row=0; row<h && (row < 16); ++row ) {
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80 memcpy(&cursor->curs.mask[row], mask, bytes);
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81 mask += w/8;
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82 }
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83 cursor->curs.hotSpot.h = hot_x;
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84 cursor->curs.hotSpot.v = hot_y;
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85
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86 /* That was easy. :) */
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87 return(cursor);
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88 }
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89
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90 int Mac_cursor_showing = 1;
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91
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92 int Mac_ShowWMCursor(_THIS, WMcursor *cursor)
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93 {
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94 if ( cursor == NULL ) {
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95 if ( Mac_cursor_showing ) {
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96 HideCursor();
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97 Mac_cursor_showing = 0;
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98 }
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99 } else {
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100 SetCursor(&cursor->curs);
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101 if ( ! Mac_cursor_showing ) {
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102 ShowCursor();
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103 Mac_cursor_showing = 1;
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104 }
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105 }
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106 return(1);
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107 }
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108
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109 void Mac_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
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110 {
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111 #if !TARGET_API_MAC_CARBON
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112 CursorDevice *cursordevice;
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113
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114 cursordevice = nil;
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115 CursorDeviceNextDevice(&cursordevice);
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116 if ( cursordevice != nil ) {
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117 WindowPtr saveport;
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118 Point where;
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119
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120 GetPort(&saveport);
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121 SetPort(SDL_Window);
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122 where.h = x;
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123 where.v = y;
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124 LocalToGlobal(&where);
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125 SetPort(saveport);
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126 CursorDeviceMoveTo(cursordevice, where.h, where.v);
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127 }
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128 #endif /* !TARGET_API_MAC_CARBON */
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129 }
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130
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