Initial commit

Code/Framework/AzQtComponents/Platform/Windows/AzQtComponents/Utilities/HandleDpiAwareness_Windows.cpp

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+/*
+* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+* its licensors.
+*
+* For complete copyright and license terms please see the LICENSE at the root of this
+* distribution (the "License"). All use of this software is governed by the License,
+* or, if provided, by the license below or the license accompanying this file. Do not
+* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*
+*/
+
+#include <AzQtComponents/Utilities/HandleDpiAwareness.h>
+
+#include <AzCore/PlatformIncl.h>
+#include <AzCore/std/string/string.h>
+#include <AzCore/std/containers/fixed_vector.h>
+
+#include <AzFramework/API/AtomActiveInterface.h>
+#include <AzCore/Interface/Interface.h>
+
+namespace AzQtComponents
+{
+    namespace Utilities
+    {
+        namespace Platform
+        {
+            void HandleDpiAwareness(DpiAwareness dpiAwareness)
+            {
+                // We need to force the dpi awareness settings on Windows based on the version.
+                // Qt doesn't currently expose a mechanism to do that other than via command line arguments
+
+                char qpaArg[512] = { "QT_QPA_PLATFORM=windows:fontengine=freetype,"};
+
+                switch (dpiAwareness)
+                {
+                    case Unaware:
+                        azstrcat(qpaArg, AZ_ARRAY_SIZE(qpaArg), "dpiawareness=0");
+                        break;
+                    case SystemDpiAware:
+                        azstrcat(qpaArg, AZ_ARRAY_SIZE(qpaArg), "dpiawareness=1");
+                        break;
+                    case PerScreenDpiAware:     // intentional fall-through (setting defaults to 2)
+                    case Unset:                 // intentional fall-through
+                    default:
+                        azstrcat(qpaArg, AZ_ARRAY_SIZE(qpaArg), "dpiawareness=2");
+                        break;
+                }
+
+                _putenv(qpaArg);
+            }
+        } // namespace Platform
+    } // namespace Utilities
+} // namespace AzQtComponents