Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_CreateCursor.3 @ 664:abfdc08eb289
Date: Sun, 3 Aug 2003 22:07:57 +0200
From: Max Horn
Subject: SDL OSX fullscreen FIX
the attached patch fixes the fullscreen problems on SDL/OSX. The cause
was that click events are bounded by winRect. Now, winRect is set to
the size of the video surface. But if you e.g. request a 640x420
surface, you might get a 640x480 "real" surface. Still,
SDL_VideoSurface->h will be set to 420! Thus, the upper 60 pixels in my
example received no mouse down events.
My fix simply disables this clipping when in full screen mode - after
all, all clicks then should be inside the screen surface. Higher SDL
functions ensure that the coordinates then are clipped to 640x420. It
works fine in all my tests here. I don't know if it's the right thing
to do in multi screen scenarios, though.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 04 Aug 2003 01:00:30 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
| rev | line source |
|---|---|
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
1 .TH "SDL_CreateCursor" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
| 3 SDL_CreateCursor\- Creates a new mouse cursor\&. | |
| 4 .SH "SYNOPSIS" | |
| 5 .PP | |
| 6 \fB#include "SDL\&.h" | |
| 7 .sp | |
| 8 \fBSDL_Cursor *\fBSDL_CreateCursor\fP\fR(\fBUint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y\fR); | |
| 9 .SH "DESCRIPTION" | |
| 10 .PP | |
| 11 Create a cursor using the specified \fBdata\fR and \fBmask\fR (in MSB format)\&. The cursor width must be a multiple of 8 bits\&. | |
| 12 .PP | |
| 13 The cursor is created in black and white according to the following: | |
| 14 .TP 20 | |
| 15 \fBData / Mask\fR | |
| 16 \fBResulting pixel on screen\fR | |
| 17 .TP 20 | |
| 18 0 / 1 | |
| 19 White | |
| 20 .TP 20 | |
| 21 1 / 1 | |
| 22 Black | |
| 23 .TP 20 | |
| 24 0 / 0 | |
| 25 Transparent | |
| 26 .TP 20 | |
| 27 1 / 0 | |
| 28 Inverted color if possible, black if not\&. | |
| 29 .PP | |
| 30 Cursors created with this function must be freed with \fISDL_FreeCursor\fR\&. | |
| 31 .SH "EXAMPLE" | |
| 32 .PP | |
| 33 .nf | |
| 34 \f(CW/* Stolen from the mailing list */ | |
| 35 /* Creates a new mouse cursor from an XPM */ | |
| 36 | |
| 37 | |
| 38 /* XPM */ | |
| 39 static const char *arrow[] = { | |
| 40 /* width height num_colors chars_per_pixel */ | |
| 41 " 32 32 3 1", | |
| 42 /* colors */ | |
| 43 "X c #000000", | |
| 44 "\&. c #ffffff", | |
| 45 " c None", | |
| 46 /* pixels */ | |
| 47 "X ", | |
| 48 "XX ", | |
| 49 "X\&.X ", | |
| 50 "X\&.\&.X ", | |
| 51 "X\&.\&.\&.X ", | |
| 52 "X\&.\&.\&.\&.X ", | |
| 53 "X\&.\&.\&.\&.\&.X ", | |
| 54 "X\&.\&.\&.\&.\&.\&.X ", | |
| 55 "X\&.\&.\&.\&.\&.\&.\&.X ", | |
| 56 "X\&.\&.\&.\&.\&.\&.\&.\&.X ", | |
| 57 "X\&.\&.\&.\&.\&.XXXXX ", | |
| 58 "X\&.\&.X\&.\&.X ", | |
| 59 "X\&.X X\&.\&.X ", | |
| 60 "XX X\&.\&.X ", | |
| 61 "X X\&.\&.X ", | |
| 62 " X\&.\&.X ", | |
| 63 " X\&.\&.X ", | |
| 64 " X\&.\&.X ", | |
| 65 " XX ", | |
| 66 " ", | |
| 67 " ", | |
| 68 " ", | |
| 69 " ", | |
| 70 " ", | |
| 71 " ", | |
| 72 " ", | |
| 73 " ", | |
| 74 " ", | |
| 75 " ", | |
| 76 " ", | |
| 77 " ", | |
| 78 " ", | |
| 79 "0,0" | |
| 80 }; | |
| 81 | |
| 82 static SDL_Cursor *init_system_cursor(const char *image[]) | |
| 83 { | |
| 84 int i, row, col; | |
| 85 Uint8 data[4*32]; | |
| 86 Uint8 mask[4*32]; | |
| 87 int hot_x, hot_y; | |
| 88 | |
| 89 i = -1; | |
| 90 for ( row=0; row<32; ++row ) { | |
| 91 for ( col=0; col<32; ++col ) { | |
| 92 if ( col % 8 ) { | |
| 93 data[i] <<= 1; | |
| 94 mask[i] <<= 1; | |
| 95 } else { | |
| 96 ++i; | |
| 97 data[i] = mask[i] = 0; | |
| 98 } | |
| 99 switch (image[4+row][col]) { | |
| 100 case \&'X\&': | |
| 101 data[i] |= 0x01; | |
| 102 k[i] |= 0x01; | |
| 103 break; | |
| 104 case \&'\&.\&': | |
| 105 mask[i] |= 0x01; | |
| 106 break; | |
| 107 case \&' \&': | |
| 108 break; | |
| 109 } | |
| 110 } | |
| 111 } | |
| 112 sscanf(image[4+row], "%d,%d", &hot_x, &hot_y); | |
| 113 return SDL_CreateCursor(data, mask, 32, 32, hot_x, hot_y); | |
| 114 }\fR | |
| 115 .fi | |
| 116 .PP | |
| 117 .SH "SEE ALSO" | |
| 118 .PP | |
| 119 \fI\fBSDL_FreeCursor\fP\fR, \fI\fBSDL_SetCursor\fP\fR, \fI\fBSDL_ShowCursor\fP\fR | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
120 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |