slouken@0
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/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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/* General mouse handling code for SDL */
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#include "SDL_events.h"
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#include "SDL_events_c.h"
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#include "default_cursor.h"
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static int SDL_num_mice;
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static int SDL_current_mouse;
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static SDL_Mouse **SDL_mice;
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/* Public functions */
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int
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SDL_MouseInit(void)
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{
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return (0);
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}
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SDL_Mouse *
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SDL_GetMouse(int index)
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{
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if (index < 0 || index >= SDL_num_mice) {
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return NULL;
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}
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return SDL_mice[index];
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}
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int
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SDL_AddMouse(const SDL_Mouse * mouse, int index)
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{
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SDL_Mouse **mice;
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int selected_mouse;
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/* Add the mouse to the list of mice */
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if (index < 0 || index >= SDL_num_mice || SDL_mice[index]) {
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mice =
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(SDL_Mouse **) SDL_realloc(SDL_mice,
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(SDL_num_mice + 1) * sizeof(*mice));
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if (!mice) {
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SDL_OutOfMemory();
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return -1;
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}
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SDL_mice = mice;
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index = SDL_num_mice++;
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}
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SDL_mice[index] = (SDL_Mouse *) SDL_malloc(sizeof(*SDL_mice[index]));
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if (!SDL_mice[index]) {
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SDL_OutOfMemory();
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return -1;
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}
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*SDL_mice[index] = *mouse;
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/* Create the default cursor for the mouse */
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SDL_mice[index]->cursor_shown = SDL_TRUE;
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selected_mouse = SDL_SelectMouse(index);
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SDL_mice[index]->cur_cursor = NULL;
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SDL_mice[index]->def_cursor =
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SDL_CreateCursor(default_cdata, default_cmask, DEFAULT_CWIDTH,
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DEFAULT_CHEIGHT, DEFAULT_CHOTX, DEFAULT_CHOTY);
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SDL_SetCursor(SDL_mice[index]->def_cursor);
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SDL_SelectMouse(selected_mouse);
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return index;
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}
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void
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SDL_DelMouse(int index)
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{
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SDL_Mouse *mouse = SDL_GetMouse(index);
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if (!mouse) {
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return;
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}
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mouse->def_cursor = NULL;
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while (mouse->cursors) {
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SDL_FreeCursor(mouse->cursors);
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}
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if (mouse->FreeMouse) {
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mouse->FreeMouse(mouse);
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}
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SDL_free(mouse);
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SDL_mice[index] = NULL;
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}
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void
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SDL_ResetMouse(int index)
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{
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SDL_Mouse *mouse = SDL_GetMouse(index);
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if (!mouse) {
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return;
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}
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/* FIXME */
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}
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void
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SDL_MouseQuit(void)
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{
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int i;
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for (i = 0; i < SDL_num_mice; ++i) {
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SDL_DelMouse(i);
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}
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SDL_num_mice = 0;
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SDL_current_mouse = 0;
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if (SDL_mice) {
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SDL_free(SDL_mice);
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SDL_mice = NULL;
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}
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}
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int
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SDL_GetNumMice(void)
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{
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return SDL_num_mice;
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}
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int
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SDL_SelectMouse(int index)
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{
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if (index >= 0 && index < SDL_num_mice) {
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SDL_current_mouse = index;
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}
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return SDL_current_mouse;
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}
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SDL_WindowID
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SDL_GetMouseFocusWindow()
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{
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SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
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if (!mouse) {
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return 0;
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}
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return mouse->focus;
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}
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static int SDLCALL
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FlushMouseMotion(void *param, SDL_Event * event)
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{
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if (event->type == SDL_MOUSEMOTION
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&& event->motion.which == (Uint8) SDL_current_mouse) {
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return 0;
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} else {
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return 1;
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}
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}
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int
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SDL_SetRelativeMouseMode(SDL_bool enabled)
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{
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SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
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183 |
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if (!mouse) {
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return -1;
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}
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/* Flush pending mouse motion */
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mouse->flush_motion = SDL_TRUE;
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SDL_PumpEvents();
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mouse->flush_motion = SDL_FALSE;
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SDL_FilterEvents(FlushMouseMotion, mouse);
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/* Set the relative mode */
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mouse->relative_mode = enabled;
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196 |
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/* Update cursor visibility */
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SDL_SetCursor(NULL);
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slouken@1895
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199 |
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slouken@1895
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if (!enabled) {
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slouken@1895
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/* Restore the expected mouse position */
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slouken@1895
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SDL_WarpMouseInWindow(mouse->focus, mouse->x, mouse->y);
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slouken@1895
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203 |
}
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slouken@1895
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204 |
return 0;
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slouken@1895
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205 |
}
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slouken@1895
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206 |
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slouken@1895
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SDL_bool
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SDL_GetRelativeMouseMode()
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slouken@1895
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{
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slouken@1895
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210 |
SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
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slouken@1895
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211 |
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slouken@1895
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if (!mouse) {
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slouken@1895
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return SDL_FALSE;
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slouken@1895
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214 |
}
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slouken@1895
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215 |
return mouse->relative_mode;
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slouken@1895
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}
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217 |
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slouken@1895
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218 |
Uint8
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219 |
SDL_GetMouseState(int *x, int *y)
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slouken@1895
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220 |
{
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slouken@1895
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221 |
SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
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slouken@1895
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222 |
|
slouken@1895
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223 |
if (!mouse) {
|
slouken@1895
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224 |
if (x) {
|
slouken@1895
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225 |
*x = 0;
|
slouken@1895
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226 |
}
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slouken@1895
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227 |
if (y) {
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slouken@1895
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228 |
*y = 0;
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slouken@1895
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229 |
}
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slouken@1895
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230 |
return 0;
|
slouken@1895
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231 |
}
|
slouken@1895
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232 |
|
slouken@1895
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233 |
if (x) {
|
slouken@1895
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234 |
*x = mouse->x;
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slouken@1895
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235 |
}
|
slouken@1895
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236 |
if (y) {
|
slouken@1895
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237 |
*y = mouse->y;
|
slouken@1895
|
238 |
}
|
slouken@1895
|
239 |
return mouse->buttonstate;
|
slouken@1895
|
240 |
}
|
slouken@1895
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241 |
|
slouken@1895
|
242 |
Uint8
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slouken@1895
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243 |
SDL_GetRelativeMouseState(int *x, int *y)
|
slouken@1895
|
244 |
{
|
slouken@1895
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245 |
SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
|
slouken@1895
|
246 |
|
slouken@1895
|
247 |
if (!mouse) {
|
slouken@1895
|
248 |
if (x) {
|
slouken@1895
|
249 |
*x = 0;
|
slouken@1895
|
250 |
}
|
slouken@1895
|
251 |
if (y) {
|
slouken@1895
|
252 |
*y = 0;
|
slouken@1895
|
253 |
}
|
slouken@1895
|
254 |
return 0;
|
slouken@1895
|
255 |
}
|
slouken@1895
|
256 |
|
slouken@1895
|
257 |
if (x) {
|
slouken@1895
|
258 |
*x = mouse->xdelta;
|
slouken@1895
|
259 |
}
|
slouken@1895
|
260 |
if (y) {
|
slouken@1895
|
261 |
*y = mouse->ydelta;
|
slouken@1895
|
262 |
}
|
slouken@1895
|
263 |
mouse->xdelta = 0;
|
slouken@1895
|
264 |
mouse->ydelta = 0;
|
slouken@1895
|
265 |
return mouse->buttonstate;
|
slouken@1895
|
266 |
}
|
slouken@1895
|
267 |
|
slouken@1895
|
268 |
void
|
slouken@1895
|
269 |
SDL_SetMouseFocus(int index, SDL_WindowID windowID)
|
slouken@1895
|
270 |
{
|
slouken@1895
|
271 |
SDL_Mouse *mouse = SDL_GetMouse(index);
|
slouken@1895
|
272 |
int i;
|
slouken@1895
|
273 |
SDL_bool focus;
|
slouken@1895
|
274 |
|
slouken@1895
|
275 |
if (!mouse || (mouse->focus == windowID)) {
|
slouken@1895
|
276 |
return;
|
slouken@1895
|
277 |
}
|
slouken@1895
|
278 |
|
slouken@1895
|
279 |
/* See if the current window has lost focus */
|
slouken@1895
|
280 |
if (mouse->focus) {
|
slouken@1895
|
281 |
focus = SDL_FALSE;
|
slouken@1895
|
282 |
for (i = 0; i < SDL_num_mice; ++i) {
|
slouken@1895
|
283 |
SDL_Mouse *check;
|
slouken@1895
|
284 |
if (i != index) {
|
slouken@1895
|
285 |
check = SDL_GetMouse(i);
|
slouken@1895
|
286 |
if (check && check->focus == mouse->focus) {
|
slouken@1895
|
287 |
focus = SDL_TRUE;
|
slouken@1895
|
288 |
break;
|
slouken@1895
|
289 |
}
|
slouken@1895
|
290 |
}
|
slouken@1895
|
291 |
}
|
slouken@1895
|
292 |
if (!focus) {
|
slouken@1895
|
293 |
SDL_SendWindowEvent(mouse->focus, SDL_WINDOWEVENT_LEAVE, 0, 0);
|
slouken@1895
|
294 |
}
|
slouken@1895
|
295 |
}
|
slouken@1895
|
296 |
|
slouken@1895
|
297 |
mouse->focus = windowID;
|
slouken@1895
|
298 |
|
slouken@1895
|
299 |
if (mouse->focus) {
|
slouken@1895
|
300 |
focus = SDL_FALSE;
|
slouken@1895
|
301 |
for (i = 0; i < SDL_num_mice; ++i) {
|
slouken@1895
|
302 |
SDL_Mouse *check;
|
slouken@1895
|
303 |
if (i != index) {
|
slouken@1895
|
304 |
check = SDL_GetMouse(i);
|
slouken@1895
|
305 |
if (check && check->focus == mouse->focus) {
|
slouken@1895
|
306 |
focus = SDL_TRUE;
|
slouken@1895
|
307 |
break;
|
slouken@1895
|
308 |
}
|
slouken@1895
|
309 |
}
|
slouken@1895
|
310 |
}
|
slouken@1895
|
311 |
if (!focus) {
|
slouken@1895
|
312 |
SDL_SendWindowEvent(mouse->focus, SDL_WINDOWEVENT_ENTER, 0, 0);
|
slouken@1895
|
313 |
}
|
slouken@1895
|
314 |
}
|
slouken@1895
|
315 |
}
|
slouken@1895
|
316 |
|
slouken@1895
|
317 |
int
|
slouken@1895
|
318 |
SDL_SendMouseMotion(int index, int relative, int x, int y)
|
slouken@1895
|
319 |
{
|
slouken@1895
|
320 |
SDL_Mouse *mouse = SDL_GetMouse(index);
|
slouken@1895
|
321 |
int posted;
|
slouken@1895
|
322 |
int xrel;
|
slouken@1895
|
323 |
int yrel;
|
slouken@1895
|
324 |
|
slouken@1895
|
325 |
if (!mouse || mouse->flush_motion) {
|
slouken@1895
|
326 |
return 0;
|
slouken@1895
|
327 |
}
|
slouken@1895
|
328 |
|
slouken@1895
|
329 |
if (relative) {
|
slouken@1895
|
330 |
/* Push the cursor around */
|
slouken@1895
|
331 |
xrel = x;
|
slouken@1895
|
332 |
yrel = y;
|
slouken@1895
|
333 |
x = (mouse->x + xrel);
|
slouken@1895
|
334 |
y = (mouse->y + yrel);
|
slouken@1895
|
335 |
} else {
|
slouken@1895
|
336 |
xrel = x - mouse->x;
|
slouken@1895
|
337 |
yrel = y - mouse->y;
|
slouken@1895
|
338 |
}
|
slouken@1895
|
339 |
|
slouken@1895
|
340 |
/* Drop events that don't change state */
|
slouken@1895
|
341 |
if (!xrel && !yrel) {
|
slouken@1895
|
342 |
#if 0
|
slouken@1895
|
343 |
printf("Mouse event didn't change state - dropped!\n");
|
slouken@1895
|
344 |
#endif
|
slouken@1895
|
345 |
return 0;
|
slouken@1895
|
346 |
}
|
slouken@1895
|
347 |
|
slouken@1895
|
348 |
/* Update internal mouse state */
|
slouken@1895
|
349 |
if (!mouse->relative_mode) {
|
slouken@1895
|
350 |
mouse->x = x;
|
slouken@1895
|
351 |
mouse->y = y;
|
slouken@1895
|
352 |
}
|
slouken@1895
|
353 |
mouse->xdelta += xrel;
|
slouken@1895
|
354 |
mouse->ydelta += yrel;
|
slouken@1895
|
355 |
|
slouken@1895
|
356 |
/* Move the mouse cursor, if needed */
|
slouken@1895
|
357 |
if (mouse->cursor_shown && !mouse->relative_mode &&
|
slouken@1895
|
358 |
mouse->MoveCursor && mouse->cur_cursor) {
|
slouken@1895
|
359 |
mouse->MoveCursor(mouse->cur_cursor);
|
slouken@1895
|
360 |
}
|
slouken@1895
|
361 |
|
slouken@1895
|
362 |
/* Post the event, if desired */
|
slouken@1895
|
363 |
posted = 0;
|
slouken@1895
|
364 |
if (SDL_ProcessEvents[SDL_MOUSEMOTION] == SDL_ENABLE) {
|
slouken@1895
|
365 |
SDL_Event event;
|
slouken@1895
|
366 |
event.motion.type = SDL_MOUSEMOTION;
|
slouken@1895
|
367 |
event.motion.which = (Uint8) index;
|
slouken@1895
|
368 |
event.motion.state = mouse->buttonstate;
|
slouken@1895
|
369 |
event.motion.x = mouse->x;
|
slouken@1895
|
370 |
event.motion.y = mouse->y;
|
slouken@1895
|
371 |
event.motion.xrel = xrel;
|
slouken@1895
|
372 |
event.motion.yrel = yrel;
|
slouken@1895
|
373 |
event.motion.windowID = mouse->focus;
|
slouken@1895
|
374 |
posted = (SDL_PushEvent(&event) > 0);
|
slouken@1895
|
375 |
}
|
slouken@1895
|
376 |
return posted;
|
slouken@1895
|
377 |
}
|
slouken@1895
|
378 |
|
slouken@1895
|
379 |
int
|
slouken@1895
|
380 |
SDL_SendMouseButton(int index, Uint8 state, Uint8 button)
|
slouken@1895
|
381 |
{
|
slouken@1895
|
382 |
SDL_Mouse *mouse = SDL_GetMouse(index);
|
slouken@1895
|
383 |
int posted;
|
slouken@1895
|
384 |
Uint8 type;
|
slouken@1895
|
385 |
|
slouken@1895
|
386 |
if (!mouse) {
|
slouken@1895
|
387 |
return 0;
|
slouken@1895
|
388 |
}
|
slouken@1895
|
389 |
|
slouken@1895
|
390 |
/* Figure out which event to perform */
|
slouken@1895
|
391 |
switch (state) {
|
slouken@1895
|
392 |
case SDL_PRESSED:
|
slouken@1895
|
393 |
if (mouse->buttonstate & SDL_BUTTON(button)) {
|
slouken@1895
|
394 |
/* Ignore this event, no state change */
|
slouken@1895
|
395 |
return 0;
|
slouken@1895
|
396 |
}
|
slouken@1895
|
397 |
type = SDL_MOUSEBUTTONDOWN;
|
slouken@1895
|
398 |
mouse->buttonstate |= SDL_BUTTON(button);
|
slouken@1895
|
399 |
break;
|
slouken@1895
|
400 |
case SDL_RELEASED:
|
slouken@1895
|
401 |
if (!(mouse->buttonstate & SDL_BUTTON(button))) {
|
slouken@1895
|
402 |
/* Ignore this event, no state change */
|
slouken@1895
|
403 |
return 0;
|
slouken@1895
|
404 |
}
|
slouken@1895
|
405 |
type = SDL_MOUSEBUTTONUP;
|
slouken@1895
|
406 |
mouse->buttonstate &= ~SDL_BUTTON(button);
|
slouken@1895
|
407 |
break;
|
slouken@1895
|
408 |
default:
|
slouken@1895
|
409 |
/* Invalid state -- bail */
|
slouken@1895
|
410 |
return 0;
|
slouken@1895
|
411 |
}
|
slouken@1895
|
412 |
|
slouken@1895
|
413 |
/* Post the event, if desired */
|
slouken@1895
|
414 |
posted = 0;
|
slouken@1895
|
415 |
if (SDL_ProcessEvents[type] == SDL_ENABLE) {
|
slouken@1895
|
416 |
SDL_Event event;
|
slouken@1895
|
417 |
event.type = type;
|
slouken@1895
|
418 |
event.button.which = (Uint8) index;
|
slouken@1895
|
419 |
event.button.state = state;
|
slouken@1895
|
420 |
event.button.button = button;
|
slouken@1895
|
421 |
event.button.x = mouse->x;
|
slouken@1895
|
422 |
event.button.y = mouse->y;
|
slouken@1895
|
423 |
event.button.windowID = mouse->focus;
|
slouken@1895
|
424 |
posted = (SDL_PushEvent(&event) > 0);
|
slouken@1895
|
425 |
}
|
slouken@1895
|
426 |
return posted;
|
slouken@1895
|
427 |
}
|
slouken@1895
|
428 |
|
slouken@1895
|
429 |
int
|
slouken@2152
|
430 |
SDL_SendMouseWheel(int index, int x, int y)
|
slouken@1895
|
431 |
{
|
slouken@1895
|
432 |
SDL_Mouse *mouse = SDL_GetMouse(index);
|
slouken@1895
|
433 |
int posted;
|
slouken@1895
|
434 |
|
slouken@2152
|
435 |
if (!mouse || (!x && !y)) {
|
slouken@1895
|
436 |
return 0;
|
slouken@1895
|
437 |
}
|
slouken@1895
|
438 |
|
slouken@1895
|
439 |
/* Post the event, if desired */
|
slouken@1895
|
440 |
posted = 0;
|
slouken@1895
|
441 |
if (SDL_ProcessEvents[SDL_MOUSEWHEEL] == SDL_ENABLE) {
|
slouken@1895
|
442 |
SDL_Event event;
|
slouken@1895
|
443 |
event.type = SDL_MOUSEWHEEL;
|
slouken@1895
|
444 |
event.wheel.which = (Uint8) index;
|
slouken@2152
|
445 |
event.wheel.x = x;
|
slouken@2152
|
446 |
event.wheel.y = y;
|
slouken@1895
|
447 |
event.wheel.windowID = mouse->focus;
|
slouken@1895
|
448 |
posted = (SDL_PushEvent(&event) > 0);
|
slouken@1895
|
449 |
}
|
slouken@1895
|
450 |
return posted;
|
slouken@1895
|
451 |
}
|
slouken@1895
|
452 |
|
slouken@1895
|
453 |
void
|
slouken@1895
|
454 |
SDL_WarpMouseInWindow(SDL_WindowID windowID, int x, int y)
|
slouken@1895
|
455 |
{
|
slouken@1895
|
456 |
SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
|
slouken@1895
|
457 |
|
slouken@1895
|
458 |
if (!mouse) {
|
slouken@1895
|
459 |
return;
|
slouken@1895
|
460 |
}
|
slouken@1895
|
461 |
|
slouken@1895
|
462 |
if (mouse->WarpMouse) {
|
slouken@1895
|
463 |
mouse->WarpMouse(mouse, windowID, x, y);
|
slouken@1895
|
464 |
} else {
|
slouken@1895
|
465 |
SDL_SetMouseFocus(SDL_current_mouse, windowID);
|
slouken@1895
|
466 |
SDL_SendMouseMotion(SDL_current_mouse, 0, x, y);
|
slouken@1895
|
467 |
}
|
slouken@1895
|
468 |
}
|
slouken@1895
|
469 |
|
slouken@1895
|
470 |
SDL_Cursor *
|
slouken@1895
|
471 |
SDL_CreateCursor(const Uint8 * data, const Uint8 * mask,
|
slouken@1895
|
472 |
int w, int h, int hot_x, int hot_y)
|
slouken@1895
|
473 |
{
|
slouken@1895
|
474 |
SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
|
slouken@1895
|
475 |
SDL_Surface *surface;
|
slouken@1895
|
476 |
SDL_Cursor *cursor;
|
slouken@1895
|
477 |
int x, y;
|
slouken@1895
|
478 |
Uint32 *pixel;
|
slouken@1895
|
479 |
Uint8 datab, maskb;
|
slouken@1895
|
480 |
const Uint32 black = 0xFF000000;
|
slouken@1895
|
481 |
const Uint32 white = 0xFFFFFFFF;
|
slouken@1895
|
482 |
const Uint32 transparent = 0x00000000;
|
slouken@1895
|
483 |
|
slouken@1895
|
484 |
if (!mouse) {
|
slouken@1895
|
485 |
SDL_SetError("No mice are initialized");
|
slouken@1895
|
486 |
return NULL;
|
slouken@1895
|
487 |
}
|
slouken@1895
|
488 |
|
slouken@1895
|
489 |
if (!mouse->CreateCursor) {
|
slouken@1895
|
490 |
SDL_SetError("Current mouse doesn't have cursor support");
|
slouken@1895
|
491 |
return NULL;
|
slouken@1895
|
492 |
}
|
slouken@1895
|
493 |
|
slouken@1895
|
494 |
/* Sanity check the hot spot */
|
slouken@1895
|
495 |
if ((hot_x < 0) || (hot_y < 0) || (hot_x >= w) || (hot_y >= h)) {
|
slouken@1895
|
496 |
SDL_SetError("Cursor hot spot doesn't lie within cursor");
|
slouken@1895
|
497 |
return NULL;
|
slouken@1895
|
498 |
}
|
slouken@1895
|
499 |
|
slouken@1895
|
500 |
/* Make sure the width is a multiple of 8 */
|
slouken@1895
|
501 |
w = ((w + 7) & ~7);
|
slouken@1895
|
502 |
|
slouken@1895
|
503 |
/* Create the surface from a bitmap */
|
slouken@1895
|
504 |
surface =
|
slouken@1895
|
505 |
SDL_CreateRGBSurface(0, w, h, 32, 0x00FF0000, 0x0000FF00, 0x000000FF,
|
slouken@1895
|
506 |
0xFF000000);
|
slouken@1895
|
507 |
if (!surface) {
|
slouken@1895
|
508 |
return NULL;
|
slouken@1895
|
509 |
}
|
slouken@1895
|
510 |
for (y = 0; y < h; ++y) {
|
slouken@1895
|
511 |
pixel = (Uint32 *) ((Uint8 *) surface->pixels + y * surface->pitch);
|
slouken@1895
|
512 |
for (x = 0; x < w; ++x) {
|
slouken@1895
|
513 |
if ((x % 8) == 0) {
|
slouken@1895
|
514 |
datab = *data++;
|
slouken@1895
|
515 |
maskb = *mask++;
|
slouken@1895
|
516 |
}
|
slouken@1895
|
517 |
if (maskb & 0x80) {
|
slouken@1895
|
518 |
*pixel++ = (datab & 0x80) ? black : white;
|
slouken@1895
|
519 |
} else {
|
slouken@1895
|
520 |
*pixel++ = (datab & 0x80) ? black : transparent;
|
slouken@1895
|
521 |
}
|
slouken@1895
|
522 |
datab <<= 1;
|
slouken@1895
|
523 |
maskb <<= 1;
|
slouken@1895
|
524 |
}
|
slouken@1895
|
525 |
}
|
slouken@1895
|
526 |
|
slouken@1895
|
527 |
cursor = mouse->CreateCursor(surface, hot_x, hot_y);
|
slouken@1895
|
528 |
if (cursor) {
|
slouken@1895
|
529 |
cursor->mouse = mouse;
|
slouken@1895
|
530 |
cursor->next = mouse->cursors;
|
slouken@1895
|
531 |
mouse->cursors = cursor;
|
slouken@1895
|
532 |
}
|
slouken@1895
|
533 |
|
slouken@1895
|
534 |
SDL_FreeSurface(surface);
|
slouken@1895
|
535 |
|
slouken@1895
|
536 |
return cursor;
|
slouken@1895
|
537 |
}
|
slouken@1895
|
538 |
|
slouken@1895
|
539 |
/* SDL_SetCursor(NULL) can be used to force the cursor redraw,
|
slouken@1895
|
540 |
if this is desired for any reason. This is used when setting
|
slouken@1895
|
541 |
the video mode and when the SDL window gains the mouse focus.
|
slouken@1895
|
542 |
*/
|
slouken@1895
|
543 |
void
|
slouken@1895
|
544 |
SDL_SetCursor(SDL_Cursor * cursor)
|
slouken@1895
|
545 |
{
|
slouken@1895
|
546 |
SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
|
slouken@1895
|
547 |
|
slouken@1895
|
548 |
if (!mouse) {
|
slouken@1895
|
549 |
SDL_SetError("No mice are initialized");
|
slouken@1895
|
550 |
return;
|
slouken@1895
|
551 |
}
|
slouken@1895
|
552 |
|
slouken@1895
|
553 |
/* Set the new cursor */
|
slouken@1895
|
554 |
if (cursor) {
|
slouken@1895
|
555 |
/* Make sure the cursor is still valid for this mouse */
|
slouken@1895
|
556 |
SDL_Cursor *found;
|
slouken@1895
|
557 |
for (found = mouse->cursors; found; found = found->next) {
|
slouken@1895
|
558 |
if (found == cursor) {
|
slouken@1895
|
559 |
break;
|
slouken@1895
|
560 |
}
|
slouken@1895
|
561 |
}
|
slouken@1895
|
562 |
if (!found) {
|
slouken@1895
|
563 |
SDL_SetError("Cursor not associated with the current mouse");
|
slouken@1895
|
564 |
return;
|
slouken@1895
|
565 |
}
|
slouken@1895
|
566 |
mouse->cur_cursor = cursor;
|
slouken@1895
|
567 |
} else {
|
slouken@1895
|
568 |
cursor = mouse->cur_cursor;
|
slouken@1895
|
569 |
}
|
slouken@1895
|
570 |
|
slouken@1895
|
571 |
if (cursor && mouse->cursor_shown && !mouse->relative_mode) {
|
slouken@1895
|
572 |
if (mouse->ShowCursor) {
|
slouken@1895
|
573 |
mouse->ShowCursor(cursor);
|
slouken@1895
|
574 |
}
|
slouken@1895
|
575 |
} else {
|
slouken@1895
|
576 |
if (mouse->ShowCursor) {
|
slouken@1895
|
577 |
mouse->ShowCursor(NULL);
|
slouken@1895
|
578 |
}
|
slouken@1895
|
579 |
}
|
slouken@1895
|
580 |
}
|
slouken@1895
|
581 |
|
slouken@1895
|
582 |
SDL_Cursor *
|
slouken@1895
|
583 |
SDL_GetCursor(void)
|
slouken@1895
|
584 |
{
|
slouken@1895
|
585 |
SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
|
slouken@1895
|
586 |
|
slouken@1895
|
587 |
if (!mouse) {
|
slouken@1895
|
588 |
return NULL;
|
slouken@1895
|
589 |
}
|
slouken@1895
|
590 |
return mouse->cur_cursor;
|
slouken@1895
|
591 |
}
|
slouken@1895
|
592 |
|
slouken@1895
|
593 |
void
|
slouken@1895
|
594 |
SDL_FreeCursor(SDL_Cursor * cursor)
|
slouken@1895
|
595 |
{
|
slouken@1895
|
596 |
SDL_Mouse *mouse;
|
slouken@1895
|
597 |
SDL_Cursor *curr, *prev;
|
slouken@1895
|
598 |
|
slouken@1895
|
599 |
if (!cursor) {
|
slouken@1895
|
600 |
return;
|
slouken@1895
|
601 |
}
|
slouken@1895
|
602 |
mouse = cursor->mouse;
|
slouken@1895
|
603 |
|
slouken@1895
|
604 |
if (cursor == mouse->def_cursor) {
|
slouken@1895
|
605 |
return;
|
slouken@1895
|
606 |
}
|
slouken@1895
|
607 |
if (cursor == mouse->cur_cursor) {
|
slouken@1895
|
608 |
SDL_SetCursor(mouse->def_cursor);
|
slouken@1895
|
609 |
}
|
slouken@1895
|
610 |
|
slouken@1895
|
611 |
for (prev = NULL, curr = mouse->cursors; curr;
|
slouken@1895
|
612 |
prev = curr, curr = curr->next) {
|
slouken@1895
|
613 |
if (curr == cursor) {
|
slouken@1895
|
614 |
if (prev) {
|
slouken@1895
|
615 |
prev->next = curr->next;
|
slouken@1895
|
616 |
} else {
|
slouken@1895
|
617 |
mouse->cursors = curr->next;
|
slouken@1895
|
618 |
}
|
slouken@1895
|
619 |
|
slouken@1895
|
620 |
if (mouse->FreeCursor) {
|
slouken@1895
|
621 |
mouse->FreeCursor(curr);
|
slouken@1895
|
622 |
}
|
slouken@1895
|
623 |
return;
|
slouken@1895
|
624 |
}
|
slouken@1895
|
625 |
}
|
slouken@1895
|
626 |
}
|
slouken@1895
|
627 |
|
slouken@1895
|
628 |
int
|
slouken@1895
|
629 |
SDL_ShowCursor(int toggle)
|
slouken@1895
|
630 |
{
|
slouken@1895
|
631 |
SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
|
slouken@1895
|
632 |
SDL_bool shown;
|
slouken@1895
|
633 |
|
slouken@1895
|
634 |
if (!mouse) {
|
slouken@1895
|
635 |
return 0;
|
slouken@1895
|
636 |
}
|
slouken@1895
|
637 |
|
slouken@1895
|
638 |
shown = mouse->cursor_shown;
|
slouken@1895
|
639 |
if (toggle >= 0) {
|
slouken@1895
|
640 |
if (toggle) {
|
slouken@1895
|
641 |
mouse->cursor_shown = SDL_TRUE;
|
slouken@1895
|
642 |
} else {
|
slouken@1895
|
643 |
mouse->cursor_shown = SDL_FALSE;
|
slouken@1895
|
644 |
}
|
slouken@1895
|
645 |
if (mouse->cursor_shown != shown) {
|
slouken@1895
|
646 |
SDL_SetCursor(NULL);
|
slouken@1895
|
647 |
}
|
slouken@1895
|
648 |
}
|
slouken@1895
|
649 |
return shown;
|
slouken@1895
|
650 |
}
|
slouken@1895
|
651 |
|
slouken@1895
|
652 |
/* vi: set ts=4 sw=4 expandtab: */
|