diff options
| -rw-r--r-- | indra/llwindow/llwindowwin32.cpp | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/indra/llwindow/llwindowwin32.cpp b/indra/llwindow/llwindowwin32.cpp index 3b9c840e72..b591111b75 100644 --- a/indra/llwindow/llwindowwin32.cpp +++ b/indra/llwindow/llwindowwin32.cpp @@ -2184,7 +2184,7 @@ LRESULT CALLBACK LLWindowWin32::mainWindowProc(HWND h_wnd, UINT u_msg, WPARAM w_ { window_imp->mCallbacks->handlePingWatchdog(window_imp, "Main:WM_MBUTTONUP"); LLFastTimer t2(FTM_MOUSEHANDLER); - // Because we move the cursor position in tllviewerhe app, we need to query + // Because we move the cursor position in the llviewer app, we need to query // to find out where the cursor at the time the event is handled. // If we don't do this, many clicks could get buffered up, and if the // first click changes the cursor position, all subsequent clicks @@ -2214,7 +2214,27 @@ LRESULT CALLBACK LLWindowWin32::mainWindowProc(HWND h_wnd, UINT u_msg, WPARAM w_ window_imp->mCallbacks->handlePingWatchdog(window_imp, "Main:WM_MOUSEWHEEL"); static short z_delta = 0; - z_delta += HIWORD(w_param); + RECT client_rect; + + // eat scroll events that occur outside our window, since we use mouse position to direct scroll + // instead of keyboard focus + // NOTE: mouse_coord is in *window* coordinates for scroll events + POINT mouse_coord = {(S32)(S16)LOWORD(l_param), (S32)(S16)HIWORD(l_param)}; + + if (ScreenToClient(window_imp->mWindowHandle, &mouse_coord) + && GetClientRect(window_imp->mWindowHandle, &client_rect)) + { + // we have a valid mouse point and client rect + if (mouse_coord.x < client_rect.left || client_rect.right < mouse_coord.x + || mouse_coord.y < client_rect.top || client_rect.bottom < mouse_coord.y) + { + // mouse is outside of client rect, so don't do anything + return 0; + } + } + + S16 incoming_z_delta = HIWORD(w_param); + z_delta += incoming_z_delta; // cout << "z_delta " << z_delta << endl; // current mouse wheels report changes in increments of zDelta (+120, -120) |