disable brush pressure averaging, implement single finger for camera rotation when touch draw is disabled

src/main.cpp

@@ -561,15 +561,15 @@ int main(int argc, char** argv)
     LOG("show main window");
     ShowWindow(hWnd, SW_NORMAL);
 
-//     if (!sandboxed)
-//     {
-//         LOG("init WinTab");
-//         WacomTablet::I.init(hWnd);
-//     }
-//     else
-//     {
-//         LOG("SKIP init WinTab");
-//     }
+    if (!sandboxed)
+    {
+        LOG("init WinTab");
+        WacomTablet::I.init(hWnd);
+    }
+    else
+    {
+        LOG("SKIP init WinTab");
+    }
 
     LOG("change icon");
     SendMessage(hWnd, WM_SETICON, ICON_SMALL,
@@ -763,6 +763,7 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp)
 //     }
     case WT_PACKET:
     {
+        App::I.set_stylus();
         timer_stylus = 0;
         std::lock_guard<std::mutex> lock(task_mutex);
         tasklist.emplace_back([=] {
@@ -967,6 +968,7 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp)
                     WacomTablet::I.m_ink = true;
                     WacomTablet::I.m_ink_pen = true;
                     WacomTablet::I.m_pen_pres = (float)penInfo.pressure / 1024.f;
+                    App::I.set_stylus();
                 }
                 break;
             default: