Mercurial > sdl-ios-xcode
annotate src/video/bwindow/SDL_sysmouse.cc @ 4070:b8f2db95145e SDL-1.2
Patch from Christian Walther
Yes, the idea to use a cursor rectangle instead of [NSCursor set] has occurred
to me too, and it does seem to be the most elegant way. Here's my attempt at an
implementation
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 15 Jul 2007 15:58:00 +0000 |
| parents | 4e29535b821b |
| children | a1b03ba2fcd0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 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 |
| 0 | 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. |
| 0 | 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 | |
|
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13 Lesser General Public License for more details. |
| 0 | 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 |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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Catch the C++ and Objective C sources too...
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 #include <AppKit.h> | |
| 25 #include <GameKit.h> | |
| 26 | |
| 27 #include "SDL_BWin.h" | |
| 28 | |
| 29 extern "C" { | |
| 3879 | 30 #include "../SDL_cursor_c.h" |
| 0 | 31 #include "SDL_sysmouse_c.h" |
| 32 | |
| 33 /* Convert bits to padded bytes */ | |
| 34 #define PADDED_BITS(bits) ((bits+7)/8) | |
| 35 | |
| 36 /* The implementation dependent data for the window manager cursor */ | |
| 37 struct WMcursor { | |
| 38 char *bits; | |
| 39 }; | |
| 40 | |
| 41 /* Can this be done in the BeOS? */ | |
| 42 WMcursor *BE_CreateWMCursor(_THIS, | |
| 43 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) | |
| 44 { | |
| 45 WMcursor *cursor; | |
| 46 int allowed_x; | |
| 47 int allowed_y; | |
| 48 int run, pad, i; | |
| 49 char *cptr; | |
| 50 | |
| 51 allowed_x = 16; /* BeOS limitation */ | |
| 52 allowed_y = 16; /* BeOS limitation */ | |
| 53 if ( (w > allowed_x) || (h > allowed_y) ) { | |
| 54 SDL_SetError("Only cursors of dimension (%dx%d) are allowed", | |
| 55 allowed_x, allowed_y); | |
| 56 return(NULL); | |
| 57 } | |
| 58 | |
| 59 /* Allocate the cursor */ | |
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60 cursor = (WMcursor *)SDL_malloc(sizeof(WMcursor)); |
| 0 | 61 if ( cursor == NULL ) { |
| 62 SDL_OutOfMemory(); | |
| 63 return(NULL); | |
| 64 } | |
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65 cursor->bits = (char *)SDL_malloc(4+2*((allowed_x/8)*allowed_y)); |
| 0 | 66 if ( cursor->bits == NULL ) { |
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67 SDL_free(cursor); |
| 0 | 68 SDL_OutOfMemory(); |
| 69 return(NULL); | |
| 70 } | |
| 71 cursor->bits[0] = allowed_y; /* Size of the cursor */ | |
| 72 cursor->bits[1] = 1; /* Bit depth of cursor */ | |
| 73 cursor->bits[2] = hot_y; | |
| 74 cursor->bits[3] = hot_x; | |
| 75 cptr = &cursor->bits[4]; | |
| 76 | |
| 77 /* Pad out to the normal cursor size */ | |
| 78 run = PADDED_BITS(w); | |
| 79 pad = PADDED_BITS(allowed_x)-run; | |
| 80 for ( i=0; i<h; ++i ) { | |
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81 SDL_memcpy(cptr, data, run); |
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82 SDL_memset(cptr+run, 0, pad); |
| 0 | 83 data += run; |
| 84 cptr += (run+pad); | |
| 85 } | |
| 86 for ( ; i<allowed_y; ++i ) { | |
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87 SDL_memset(cptr, 0, run+pad); |
| 0 | 88 cptr += (run+pad); |
| 89 } | |
| 90 for ( i=0; i<h; ++i ) { | |
| 91 /* FIXME: The mask should be OR'd with the data to turn | |
| 92 inverted color pixels black, since inverted color pixels | |
| 93 aren't supported under BeOS. | |
| 94 */ | |
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Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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95 SDL_memcpy(cptr, mask, run); |
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3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
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96 SDL_memset(cptr+run, 0, pad); |
| 0 | 97 mask += run; |
| 98 cptr += (run+pad); | |
| 99 } | |
| 100 for ( ; i<allowed_y; ++i ) { | |
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Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
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101 SDL_memset(cptr, 0, run+pad); |
| 0 | 102 cptr += (run+pad); |
| 103 } | |
| 104 return(cursor); | |
| 105 } | |
| 106 | |
| 107 int BE_ShowWMCursor(_THIS, WMcursor *cursor) | |
| 108 { | |
| 109 if ( be_app->Lock() ) { | |
| 110 if ( cursor == NULL ) { | |
| 111 if ( SDL_BlankCursor != NULL ) { | |
| 112 be_app->SetCursor(SDL_BlankCursor->bits); | |
| 113 } | |
| 114 } else { | |
| 115 be_app->SetCursor(cursor->bits); | |
| 116 } | |
| 117 be_app->Unlock(); | |
| 118 } | |
| 119 return(1); | |
| 120 } | |
| 121 | |
| 122 void BE_FreeWMCursor(_THIS, WMcursor *cursor) | |
| 123 { | |
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parents:
1312
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changeset
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124 SDL_free(cursor->bits); |
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3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
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125 SDL_free(cursor); |
| 0 | 126 } |
| 127 | |
| 128 /* Implementation by Christian Bauer <cbauer@student.physik.uni-mainz.de> */ | |
| 129 void BE_WarpWMCursor(_THIS, Uint16 x, Uint16 y) | |
| 130 { | |
| 4012 | 131 BPoint pt; |
| 132 SDL_Win->GetXYOffset(pt.x, pt.y); | |
| 133 pt.x += x; | |
| 134 pt.y += y; | |
| 135 SDL_Win->Lock(); | |
| 136 SDL_Win->ConvertToScreen(&pt); | |
| 137 SDL_Win->Unlock(); | |
| 138 set_mouse_position((int32)pt.x, (int32)pt.y); | |
| 3878 | 139 } |
| 3879 | 140 |
| 3878 | 141 /* Check to see if we need to enter or leave mouse relative mode */ |
| 142 void BE_CheckMouseMode(_THIS) | |
| 143 { | |
| 144 /* If the mouse is hidden and input is grabbed, we use relative mode */ | |
| 145 if ( !(SDL_cursorstate & CURSOR_VISIBLE) && | |
| 146 (_this->input_grab != SDL_GRAB_OFF) ) { | |
| 147 mouse_relative = 1; | |
| 148 } else { | |
| 149 mouse_relative = 0; | |
| 150 } | |
| 0 | 151 } |
| 152 | |
| 153 }; /* Extern C */ |