Mercurial > sdl-ios-xcode
annotate src/video/maccommon/SDL_macmouse.c @ 816:428f688f2ad2
Date: Fri, 13 Feb 2004 17:03:16 +0100
From: Max Horn
Subject: Modifier key fix
The internal modifier state can get out of sync with reality. To
trigger this, do for example this:
1) Launch an SDL app
2) Alt-click on the desktop (this will hide the SDL app).
3) Bring the SDL app back to the front
4) SDL will still think alt is pressed (and as such will treat left
clicks like middle clicks). If you press and release alt, it'll be fine
again.
The attached patch cures this by rechecking the modifier state whenever
we process an event.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 13 Feb 2004 17:57:16 +0000 |
| parents | b8d311d90021 |
| children | 609c060fd2a2 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 #include <stdlib.h> | |
| 29 #include <stdio.h> | |
| 30 #if TARGET_API_MAC_CARBON | |
| 31 #include <Carbon.h> | |
| 32 #else | |
| 33 #include <Quickdraw.h> | |
| 34 #endif | |
| 35 | |
| 36 /* Routines that are not supported by the Carbon API... */ | |
| 37 #if !TARGET_API_MAC_CARBON | |
| 38 #include <CursorDevices.h> | |
| 39 #endif | |
| 40 | |
| 41 #include "SDL_error.h" | |
| 42 #include "SDL_mouse.h" | |
| 43 #include "SDL_macmouse_c.h" | |
| 44 | |
| 45 | |
| 46 /* The implementation dependent data for the window manager cursor */ | |
| 47 struct WMcursor { | |
| 48 Cursor curs; | |
| 49 }; | |
| 50 | |
| 51 | |
| 52 void Mac_FreeWMCursor(_THIS, WMcursor *cursor) | |
| 53 { | |
| 54 free(cursor); | |
| 55 } | |
| 56 | |
| 57 WMcursor *Mac_CreateWMCursor(_THIS, | |
| 58 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) | |
| 59 { | |
| 60 WMcursor *cursor; | |
| 61 int row, bytes; | |
| 62 | |
| 63 /* Allocate the cursor memory */ | |
| 64 cursor = (WMcursor *)malloc(sizeof(WMcursor)); | |
| 65 if ( cursor == NULL ) { | |
| 66 SDL_OutOfMemory(); | |
| 67 return(NULL); | |
| 68 } | |
| 69 memset(cursor, 0, sizeof(*cursor)); | |
|
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70 |
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71 if (w > 16) |
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72 w = 16; |
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73 |
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74 if (h > 16) |
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75 h = 16; |
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76 |
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77 bytes = (w+7)/8; |
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78 |
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79 for ( row=0; row<h; ++row ) { |
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80 memcpy(&cursor->curs.data[row], data, bytes); |
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81 data += bytes; |
| 0 | 82 } |
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83 for ( row=0; row<h; ++row ) { |
| 0 | 84 memcpy(&cursor->curs.mask[row], mask, bytes); |
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85 mask += bytes; |
| 0 | 86 } |
| 87 cursor->curs.hotSpot.h = hot_x; | |
| 88 cursor->curs.hotSpot.v = hot_y; | |
| 89 | |
| 90 /* That was easy. :) */ | |
| 91 return(cursor); | |
| 92 } | |
| 93 | |
| 94 int Mac_cursor_showing = 1; | |
| 95 | |
| 96 int Mac_ShowWMCursor(_THIS, WMcursor *cursor) | |
| 97 { | |
| 98 if ( cursor == NULL ) { | |
| 99 if ( Mac_cursor_showing ) { | |
| 100 HideCursor(); | |
| 101 Mac_cursor_showing = 0; | |
| 102 } | |
| 103 } else { | |
| 104 SetCursor(&cursor->curs); | |
| 105 if ( ! Mac_cursor_showing ) { | |
| 106 ShowCursor(); | |
| 107 Mac_cursor_showing = 1; | |
| 108 } | |
| 109 } | |
| 110 return(1); | |
| 111 } | |
| 112 | |
| 113 void Mac_WarpWMCursor(_THIS, Uint16 x, Uint16 y) | |
| 114 { | |
| 115 #if !TARGET_API_MAC_CARBON | |
| 116 CursorDevice *cursordevice; | |
| 117 | |
| 118 cursordevice = nil; | |
| 119 CursorDeviceNextDevice(&cursordevice); | |
| 120 if ( cursordevice != nil ) { | |
| 121 WindowPtr saveport; | |
| 122 Point where; | |
| 123 | |
| 124 GetPort(&saveport); | |
| 125 SetPort(SDL_Window); | |
| 126 where.h = x; | |
| 127 where.v = y; | |
| 128 LocalToGlobal(&where); | |
| 129 SetPort(saveport); | |
| 130 CursorDeviceMoveTo(cursordevice, where.h, where.v); | |
| 131 } | |
| 132 #endif /* !TARGET_API_MAC_CARBON */ | |
| 133 } | |
| 134 |