annotate src/video/maccommon/SDL_macmouse.c @ 1312:c9b51268668f

Updated copyright information and removed rcs id lines (problematic in branch merges) I batch edited these files, so please let me know if I've accidentally removed anybody's credit here.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 01 Feb 2006 06:32:25 +0000
parents 609c060fd2a2
children 3692456e7b0f
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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 Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 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 Lesser 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 Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #include <stdlib.h>
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24 #include <stdio.h>
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25 #if defined(__APPLE__) && defined(__MACH__)
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26 #include <Carbon/Carbon.h>
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27 #elif TARGET_API_MAC_CARBON && (UNIVERSAL_INTERFACES_VERSION > 0x0335)
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28 #include <Carbon.h>
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29 #else
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30 #include <Quickdraw.h>
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31 #endif
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32
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33 /* Routines that are not supported by the Carbon API... */
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34 #if !TARGET_API_MAC_CARBON
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35 #include <CursorDevices.h>
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36 #endif
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37
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38 #include "SDL_error.h"
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39 #include "SDL_mouse.h"
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40 #include "SDL_macmouse_c.h"
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41
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42
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43 /* The implementation dependent data for the window manager cursor */
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44 struct WMcursor {
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45 Cursor curs;
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46 };
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47
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48
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49 void Mac_FreeWMCursor(_THIS, WMcursor *cursor)
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50 {
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51 free(cursor);
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52 }
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53
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54 WMcursor *Mac_CreateWMCursor(_THIS,
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55 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
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56 {
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57 WMcursor *cursor;
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58 int row, bytes;
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59
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60 /* Allocate the cursor memory */
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61 cursor = (WMcursor *)malloc(sizeof(WMcursor));
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62 if ( cursor == NULL ) {
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63 SDL_OutOfMemory();
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64 return(NULL);
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65 }
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66 memset(cursor, 0, sizeof(*cursor));
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68 if (w > 16)
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69 w = 16;
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71 if (h > 16)
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72 h = 16;
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74 bytes = (w+7)/8;
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75
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76 for ( row=0; row<h; ++row ) {
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77 memcpy(&cursor->curs.data[row], data, bytes);
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78 data += bytes;
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79 }
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80 for ( row=0; row<h; ++row ) {
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81 memcpy(&cursor->curs.mask[row], mask, bytes);
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82 mask += bytes;
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83 }
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84 cursor->curs.hotSpot.h = hot_x;
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85 cursor->curs.hotSpot.v = hot_y;
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86
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87 /* That was easy. :) */
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88 return(cursor);
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89 }
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90
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91 int Mac_cursor_showing = 1;
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92
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93 int Mac_ShowWMCursor(_THIS, WMcursor *cursor)
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94 {
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95 if ( cursor == NULL ) {
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96 if ( Mac_cursor_showing ) {
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97 HideCursor();
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98 Mac_cursor_showing = 0;
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99 }
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100 } else {
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101 SetCursor(&cursor->curs);
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102 if ( ! Mac_cursor_showing ) {
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103 ShowCursor();
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104 Mac_cursor_showing = 1;
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105 }
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106 }
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107 return(1);
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108 }
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109
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110 void Mac_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
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111 {
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112 #if !TARGET_API_MAC_CARBON
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113 CursorDevice *cursordevice;
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114
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115 cursordevice = nil;
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116 CursorDeviceNextDevice(&cursordevice);
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117 if ( cursordevice != nil ) {
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118 WindowPtr saveport;
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119 Point where;
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120
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121 GetPort(&saveport);
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122 SetPort(SDL_Window);
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123 where.h = x;
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124 where.v = y;
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125 LocalToGlobal(&where);
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126 SetPort(saveport);
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127 CursorDeviceMoveTo(cursordevice, where.h, where.v);
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128 }
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129 #endif /* !TARGET_API_MAC_CARBON */
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130 }
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131