pandory500/SDL-mirror
2
0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Added a relative mouse mode that uses mouse warping instead of raw input.

Browse source 
To enable this, set the environment variable SDL_MOUSE_RELATIVE_MODE_WARP to "1"

When mouse relative mode is disabled, put the cursor back where the application expects it to be, instead of where it was when relative mode was enabled.
This commit is contained in:
Sam Lantinga 2013-12-23 17:37:22 -08:00
parent 0a03232077
commit 134d56c6d9
7 changed files with 116 additions and 67 deletions
Download patch file Download diff file Expand all files Collapse all files

87
src/video/windows/SDL_windowsevents.c
View file

@ -290,6 +290,7 @@ static void
WIN_UpdateClipCursor(SDL_Window *window)
{
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
SDL_Mouse *mouse = SDL_GetMouse();
/* Don't clip the cursor while we're in the modal resize or move loop */
if (data->in_modal_loop) {
@ -297,7 +298,7 @@ WIN_UpdateClipCursor(SDL_Window *window)
return;
}
if (SDL_GetMouse()->relative_mode) {
if (mouse->relative_mode && !mouse->relative_mode_warp) {
LONG cx, cy;
RECT rect;
GetWindowRect(data->hwnd, &rect);
@ -312,8 +313,9 @@ WIN_UpdateClipCursor(SDL_Window *window)
rect.bottom = cy+1;
ClipCursor(&rect);
} else if ((window->flags & SDL_WINDOW_INPUT_GRABBED) &&
(window->flags & SDL_WINDOW_INPUT_FOCUS)) {
} else if (mouse->relative_mode_warp ||
((window->flags & SDL_WINDOW_INPUT_GRABBED) &&
(window->flags & SDL_WINDOW_INPUT_FOCUS))) {
RECT rect;
if (GetClientRect(data->hwnd, &rect) && !IsRectEmpty(&rect)) {
ClientToScreen(data->hwnd, (LPPOINT) & rect);
@ -426,8 +428,12 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
break;
case WM_MOUSEMOVE:
if( !SDL_GetMouse()->relative_mode )
SDL_SendMouseMotion(data->window, 0, 0, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
{
SDL_Mouse *mouse = SDL_GetMouse();
if (!mouse->relative_mode || mouse->relative_mode_warp) {
SDL_SendMouseMotion(data->window, 0, 0, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
}
}
/* don't break here, fall through to check the wParam like the button presses */
case WM_LBUTTONUP:
case WM_RBUTTONUP:
@ -437,49 +443,50 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
case WM_RBUTTONDOWN:
case WM_MBUTTONDOWN:
case WM_XBUTTONDOWN:
if( !SDL_GetMouse()->relative_mode )
WIN_CheckWParamMouseButtons( wParam, data );
{
SDL_Mouse *mouse = SDL_GetMouse();
if (!mouse->relative_mode || mouse->relative_mode_warp) {
WIN_CheckWParamMouseButtons(wParam, data);
}
}
break;
case WM_INPUT:
{
HRAWINPUT hRawInput = (HRAWINPUT)lParam;
RAWINPUT inp;
UINT size = sizeof(inp);
if(!SDL_GetMouse()->relative_mode)
break;
GetRawInputData(hRawInput, RID_INPUT, &inp, &size, sizeof(RAWINPUTHEADER));
/* Mouse data */
if(inp.header.dwType == RIM_TYPEMOUSE)
{
RAWMOUSE* mouse = &inp.data.mouse;
SDL_Mouse *mouse = SDL_GetMouse();
HRAWINPUT hRawInput = (HRAWINPUT)lParam;
RAWINPUT inp;
UINT size = sizeof(inp);
if((mouse->usFlags & 0x01) == MOUSE_MOVE_RELATIVE)
{
SDL_SendMouseMotion(data->window, 0, 1, (int)mouse->lLastX, (int)mouse->lLastY);
if (!mouse->relative_mode || mouse->relative_mode_warp) {
break;
}
else
{
/* synthesize relative moves from the abs position */
static SDL_Point initialMousePoint;
if ( initialMousePoint.x == 0 && initialMousePoint.y == 0 )
{
GetRawInputData(hRawInput, RID_INPUT, &inp, &size, sizeof(RAWINPUTHEADER));
/* Mouse data */
if (inp.header.dwType == RIM_TYPEMOUSE) {
RAWMOUSE* mouse = &inp.data.mouse;
if ((mouse->usFlags & 0x01) == MOUSE_MOVE_RELATIVE) {
SDL_SendMouseMotion(data->window, 0, 1, (int)mouse->lLastX, (int)mouse->lLastY);
} else {
/* synthesize relative moves from the abs position */
static SDL_Point initialMousePoint;
if (initialMousePoint.x == 0 && initialMousePoint.y == 0) {
initialMousePoint.x = mouse->lLastX;
initialMousePoint.y = mouse->lLastY;
}
SDL_SendMouseMotion(data->window, 0, 1, (int)(mouse->lLastX-initialMousePoint.x), (int)(mouse->lLastY-initialMousePoint.y) );
initialMousePoint.x = mouse->lLastX;
initialMousePoint.y = mouse->lLastY;
}
SDL_SendMouseMotion(data->window, 0, 1, (int)(mouse->lLastX-initialMousePoint.x), (int)(mouse->lLastY-initialMousePoint.y) );
initialMousePoint.x = mouse->lLastX;
initialMousePoint.y = mouse->lLastY;
WIN_CheckRawMouseButtons( mouse->usButtonFlags, data );
}
WIN_CheckRawMouseButtons( mouse->usButtonFlags, data );
}
break;
}
case WM_MOUSEWHEEL:
{
@ -497,8 +504,8 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
s_AccumulatedMotion += WHEEL_DELTA;
}
}
break;
}
break;
case WM_MOUSEHWHEEL:
{
@ -516,8 +523,8 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
s_AccumulatedMotion += WHEEL_DELTA;
}
}
break;
}
break;
#ifdef WM_MOUSELEAVE
case WM_MOUSELEAVE:
@ -549,8 +556,8 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
GetKeyboardState(keyboardState);
if (ToUnicode(wParam, (lParam >> 16) & 0xff, keyboardState, (LPWSTR)&utf32, 1, 0) > 0) {
WORD repitition;
for (repitition = lParam & 0xffff; repitition > 0; repitition--) {
WORD repetition;
for (repetition = lParam & 0xffff; repetition > 0; repetition--) {
WIN_ConvertUTF32toUTF8(utf32, text);
SDL_SendKeyboardText(text);
}