Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 262 insertions, 0 deletions

diff --git a/vcl/source/rendercontext/drawmode.cxx b/vcl/source/rendercontext/drawmode.cxx
new file mode 100644
index 000000000..b1b85d33f
--- /dev/null
+++ b/vcl/source/rendercontext/drawmode.cxx
@@ -0,0 +1,262 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <vcl/BitmapMonochromeFilter.hxx>
+#include <vcl/bitmap/BitmapTypes.hxx>
+#include <vcl/rendercontext/DrawModeFlags.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/virdev.hxx>
+
+#include <drawmode.hxx>
+
+namespace vcl::drawmode
+{
+Color GetLineColor(Color const& rColor, DrawModeFlags nDrawMode,
+                   StyleSettings const& rStyleSettings)
+{
+    Color aColor(rColor);
+
+    if (nDrawMode
+        & (DrawModeFlags::BlackLine | DrawModeFlags::WhiteLine | DrawModeFlags::GrayLine
+           | DrawModeFlags::SettingsLine))
+    {
+        if (!aColor.IsTransparent())
+        {
+            if (nDrawMode & DrawModeFlags::BlackLine)
+            {
+                aColor = COL_BLACK;
+            }
+            else if (nDrawMode & DrawModeFlags::WhiteLine)
+            {
+                aColor = COL_WHITE;
+            }
+            else if (nDrawMode & DrawModeFlags::GrayLine)
+            {
+                const sal_uInt8 cLum = aColor.GetLuminance();
+                aColor = Color(cLum, cLum, cLum);
+            }
+            else if (nDrawMode & DrawModeFlags::SettingsLine)
+            {
+                aColor = rStyleSettings.GetFontColor();
+            }
+        }
+    }
+
+    return aColor;
+}
+
+Color GetFillColor(Color const& rColor, DrawModeFlags nDrawMode,
+                   StyleSettings const& rStyleSettings)
+{
+    Color aColor(rColor);
+
+    if (nDrawMode
+        & (DrawModeFlags::BlackFill | DrawModeFlags::WhiteFill | DrawModeFlags::GrayFill
+           | DrawModeFlags::NoFill | DrawModeFlags::SettingsFill))
+    {
+        if (!aColor.IsTransparent())
+        {
+            if (nDrawMode & DrawModeFlags::BlackFill)
+            {
+                aColor = COL_BLACK;
+            }
+            else if (nDrawMode & DrawModeFlags::WhiteFill)
+            {
+                aColor = COL_WHITE;
+            }
+            else if (nDrawMode & DrawModeFlags::GrayFill)
+            {
+                const sal_uInt8 cLum = aColor.GetLuminance();
+                aColor = Color(cLum, cLum, cLum);
+            }
+            else if (nDrawMode & DrawModeFlags::NoFill)
+            {
+                aColor = COL_TRANSPARENT;
+            }
+            else if (nDrawMode & DrawModeFlags::SettingsFill)
+            {
+                aColor = rStyleSettings.GetWindowColor();
+            }
+        }
+    }
+
+    return aColor;
+}
+
+Color GetHatchColor(Color const& rColor, DrawModeFlags nDrawMode,
+                    StyleSettings const& rStyleSettings)
+{
+    Color aColor(rColor);
+
+    if (nDrawMode & DrawModeFlags::BlackLine)
+    {
+        aColor = COL_BLACK;
+    }
+    else if (nDrawMode & DrawModeFlags::WhiteLine)
+    {
+        aColor = COL_WHITE;
+    }
+    else if (nDrawMode & DrawModeFlags::GrayLine)
+    {
+        const sal_uInt8 cLum = aColor.GetLuminance();
+        aColor = Color(cLum, cLum, cLum);
+    }
+    else if (nDrawMode & DrawModeFlags::SettingsLine)
+    {
+        aColor = rStyleSettings.GetFontColor();
+    }
+
+    return aColor;
+}
+
+Color GetTextColor(Color const& rColor, DrawModeFlags nDrawMode,
+                   StyleSettings const& rStyleSettings)
+{
+    Color aColor(rColor);
+
+    if (nDrawMode
+        & (DrawModeFlags::BlackText | DrawModeFlags::WhiteText | DrawModeFlags::GrayText
+           | DrawModeFlags::SettingsText))
+    {
+        if (nDrawMode & DrawModeFlags::BlackText)
+        {
+            aColor = COL_BLACK;
+        }
+        else if (nDrawMode & DrawModeFlags::WhiteText)
+        {
+            aColor = COL_WHITE;
+        }
+        else if (nDrawMode & DrawModeFlags::GrayText)
+        {
+            const sal_uInt8 cLum = aColor.GetLuminance();
+            aColor = Color(cLum, cLum, cLum);
+        }
+        else if (nDrawMode & DrawModeFlags::SettingsText)
+        {
+            aColor = rStyleSettings.GetFontColor();
+        }
+    }
+
+    return aColor;
+}
+
+vcl::Font GetFont(vcl::Font const& rFont, DrawModeFlags nDrawMode,
+                  StyleSettings const& rStyleSettings)
+{
+    vcl::Font aFont(rFont);
+
+    if (nDrawMode
+        & (DrawModeFlags::BlackText | DrawModeFlags::WhiteText | DrawModeFlags::GrayText
+           | DrawModeFlags::SettingsText | DrawModeFlags::BlackFill | DrawModeFlags::WhiteFill
+           | DrawModeFlags::GrayFill | DrawModeFlags::NoFill | DrawModeFlags::SettingsFill))
+    {
+        Color aTextColor(aFont.GetColor());
+
+        if (nDrawMode & DrawModeFlags::BlackText)
+        {
+            aTextColor = COL_BLACK;
+        }
+        else if (nDrawMode & DrawModeFlags::WhiteText)
+        {
+            aTextColor = COL_WHITE;
+        }
+        else if (nDrawMode & DrawModeFlags::GrayText)
+        {
+            const sal_uInt8 cLum = aTextColor.GetLuminance();
+            aTextColor = Color(cLum, cLum, cLum);
+        }
+        else if (nDrawMode & DrawModeFlags::SettingsText)
+        {
+            aTextColor = rStyleSettings.GetFontColor();
+        }
+
+        aFont.SetColor(aTextColor);
+
+        if (!aFont.IsTransparent())
+        {
+            Color aTextFillColor(aFont.GetFillColor());
+
+            if (nDrawMode & DrawModeFlags::BlackFill)
+            {
+                aTextFillColor = COL_BLACK;
+            }
+            else if (nDrawMode & DrawModeFlags::WhiteFill)
+            {
+                aTextFillColor = COL_WHITE;
+            }
+            else if (nDrawMode & DrawModeFlags::GrayFill)
+            {
+                const sal_uInt8 cLum = aTextFillColor.GetLuminance();
+                aTextFillColor = Color(cLum, cLum, cLum);
+            }
+            else if (nDrawMode & DrawModeFlags::SettingsFill)
+            {
+                aTextFillColor = rStyleSettings.GetWindowColor();
+            }
+            else if (nDrawMode & DrawModeFlags::NoFill)
+            {
+                aTextFillColor = COL_TRANSPARENT;
+            }
+
+            aFont.SetFillColor(aTextFillColor);
+        }
+    }
+
+    return aFont;
+}
+
+BitmapEx GetBitmapEx(BitmapEx const& rBitmapEx, DrawModeFlags nDrawMode)
+{
+    BitmapEx aBmpEx(rBitmapEx);
+
+    if (nDrawMode & (DrawModeFlags::BlackBitmap | DrawModeFlags::WhiteBitmap))
+    {
+        Bitmap aColorBmp(aBmpEx.GetSizePixel(), vcl::PixelFormat::N1_BPP);
+        sal_uInt8 cCmpVal;
+
+        if (nDrawMode & DrawModeFlags::BlackBitmap)
+            cCmpVal = 0;
+        else
+            cCmpVal = 255;
+
+        aColorBmp.Erase(Color(cCmpVal, cCmpVal, cCmpVal));
+
+        if (aBmpEx.IsAlpha())
+        {
+            // Create one-bit mask out of alpha channel, by thresholding it at alpha=0.5. As
+            // DRAWMODE_BLACK/WHITEBITMAP requires monochrome output, having alpha-induced
+            // grey levels is not acceptable
+            BitmapEx aMaskEx(aBmpEx.GetAlpha().GetBitmap());
+            BitmapFilter::Filter(aMaskEx, BitmapMonochromeFilter(129));
+            aBmpEx = BitmapEx(aColorBmp, aMaskEx.GetBitmap());
+        }
+        else
+        {
+            aBmpEx = BitmapEx(aColorBmp, aBmpEx.GetAlpha());
+        }
+    }
+
+    if (nDrawMode & DrawModeFlags::GrayBitmap && !aBmpEx.IsEmpty())
+        aBmpEx.Convert(BmpConversion::N8BitGreys);
+
+    return aBmpEx;
+}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */