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Allow the user to override the relative mouse mode.

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They almost never want to do this, as it seriously affects
applications that rely on continuous relative mouse motion.
This commit is contained in:
Sam Lantinga
2001-06-23 22:00:59 +00:00
parent e823f3f3c2
commit 15e9de32c0
1 changed files with 15 additions and 3 deletions
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18
src/video/x11/SDL_x11mouse.c
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@@ -229,11 +229,23 @@ static void SetMouseAccel(_THIS, const char *accel_param)
/* Check to see if we need to enter or leave mouse relative mode */
void X11_CheckMouseModeNoLock(_THIS)
{
char *env_override;
int enable_relative = 1;
/* Allow the user to override the relative mouse mode.
They almost never want to do this, as it seriously affects
applications that rely on continuous relative mouse motion.
*/
env_override = getenv("SDL_MOUSE_NORELATIVE");
if ( env_override ) {
enable_relative = atoi(env_override);
}
/* If the mouse is hidden and input is grabbed, we use relative mode */
if ( !(SDL_cursorstate & CURSOR_VISIBLE) &&
if ( enable_relative &&
!(SDL_cursorstate & CURSOR_VISIBLE) &&
(this->input_grab != SDL_GRAB_OFF) &&
(SDL_GetAppState() & SDL_APPACTIVE) &&
!getenv("SDL_MOUSE_NORELATIVE") ) {
(SDL_GetAppState() & SDL_APPACTIVE) ) {
if ( ! mouse_relative ) {
X11_EnableDGAMouse(this);
if ( ! (using_dga & DGA_MOUSE) ) {