sc: OOXML export of theme colors for text and background

Change-Id: Ifd0d8184c9210caa5ca099767baa5dbbf8783f36
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/153785
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>

2 files changed, 60 insertions, 0 deletions

diff --git a/include/docmodel/color/ComplexColor.hxx b/include/docmodel/color/ComplexColor.hxx
index 4952d91ac217..e9597b15186b 100644
--- a/include/docmodel/color/ComplexColor.hxx
+++ b/include/docmodel/color/ComplexColor.hxx
@@ -100,6 +100,11 @@ public:
 
     ThemeColorType getSchemeType() const { return meSchemeType; }
 
+    bool isValidSchemeType() const
+    {
+        return meType == model::ColorType::Scheme && meSchemeType != ThemeColorType::Unknown;
+    }
+
     Color getRGBColor() const { return Color(mnComponent1, mnComponent2, mnComponent3); }
 
     std::vector<Transformation> const& getTransformations() const { return maTransformations; }
diff --git a/include/oox/export/ColorExportUtils.hxx b/include/oox/export/ColorExportUtils.hxx
new file mode 100644
index 000000000000..63716a10839d
--- /dev/null
+++ b/include/oox/export/ColorExportUtils.hxx
@@ -0,0 +1,55 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <sal/config.h>
+
+#include <docmodel/color/ComplexColor.hxx>
+
+namespace oox
+{
+static double convertColorTransformsToTintOrShade(model::ComplexColor const& rComplexColor)
+{
+    sal_Int16 nLumMod = 10'000;
+    sal_Int16 nLumOff = 0;
+
+    for (auto const& rTransform : rComplexColor.getTransformations())
+    {
+        if (rTransform.meType == model::TransformationType::LumMod)
+            nLumMod = rTransform.mnValue;
+        if (rTransform.meType == model::TransformationType::LumOff)
+            nLumOff = rTransform.mnValue;
+    }
+
+    if (nLumMod == 10'000 && nLumOff == 0)
+        return 0.0;
+
+    double fTint = 0.0;
+
+    if (nLumOff > 0) // tint
+        fTint = double(nLumOff) / 10'000.0;
+    else
+        fTint = -double(10'000 - nLumMod) / 10'000.0;
+
+    return fTint;
+}
+
+static sal_Int32 convertThemeColorTypeToExcelThemeNumber(model::ThemeColorType eType)
+{
+    if (eType == model::ThemeColorType::Unknown)
+        return -1;
+
+    constexpr std::array<sal_Int32, 12> constMap = { 1, 0, 3, 2, 4, 5, 6, 7, 8, 9, 10, 11 };
+
+    return constMap[sal_Int32(eType)];
+}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */