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, 396 insertions, 0 deletions

diff --git a/vcl/source/outdev/wallpaper.cxx b/vcl/source/outdev/wallpaper.cxx
new file mode 100644
index 000000000..2cd655c0e
--- /dev/null
+++ b/vcl/source/outdev/wallpaper.cxx
@@ -0,0 +1,396 @@
+/* -*- 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/.
+ *
+ * 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/metaact.hxx>
+#include <vcl/virdev.hxx>
+
+#include <cassert>
+
+Color OutputDevice::GetReadableFontColor(const Color& rFontColor, const Color& rBgColor) const
+{
+    if (rBgColor.IsDark() && rFontColor.IsDark())
+        return COL_WHITE;
+    else if (rBgColor.IsBright() && rFontColor.IsBright())
+        return COL_BLACK;
+    else
+        return rFontColor;
+}
+
+void OutputDevice::DrawWallpaper( const tools::Rectangle& rRect,
+                                  const Wallpaper& rWallpaper )
+{
+    assert(!is_double_buffered_window());
+
+    if ( mpMetaFile )
+        mpMetaFile->AddAction( new MetaWallpaperAction( rRect, rWallpaper ) );
+
+    if ( !IsDeviceOutputNecessary() || ImplIsRecordLayout() )
+        return;
+
+    if ( rWallpaper.GetStyle() != WallpaperStyle::NONE )
+    {
+        tools::Rectangle aRect = LogicToPixel( rRect );
+        aRect.Justify();
+
+        if ( !aRect.IsEmpty() )
+        {
+            DrawWallpaper( aRect.Left(), aRect.Top(), aRect.GetWidth(), aRect.GetHeight(),
+                               rWallpaper );
+        }
+    }
+
+    if( mpAlphaVDev )
+        mpAlphaVDev->DrawWallpaper( rRect, rWallpaper );
+}
+
+void OutputDevice::DrawWallpaper( tools::Long nX, tools::Long nY,
+                                  tools::Long nWidth, tools::Long nHeight,
+                                  const Wallpaper& rWallpaper )
+{
+    assert(!is_double_buffered_window());
+
+    if( rWallpaper.IsBitmap() )
+        DrawBitmapWallpaper( nX, nY, nWidth, nHeight, rWallpaper );
+    else if( rWallpaper.IsGradient() )
+        DrawGradientWallpaper( nX, nY, nWidth, nHeight, rWallpaper );
+    else
+        DrawColorWallpaper(  nX, nY, nWidth, nHeight, rWallpaper );
+}
+
+void OutputDevice::DrawColorWallpaper( tools::Long nX, tools::Long nY,
+                                       tools::Long nWidth, tools::Long nHeight,
+                                       const Wallpaper& rWallpaper )
+{
+    assert(!is_double_buffered_window());
+
+    // draw wallpaper without border
+    Color aOldLineColor = GetLineColor();
+    Color aOldFillColor = GetFillColor();
+    SetLineColor();
+    SetFillColor( rWallpaper.GetColor() );
+
+    bool bMap = mbMap;
+    EnableMapMode( false );
+    DrawRect( tools::Rectangle( Point( nX, nY ), Size( nWidth, nHeight ) ) );
+    SetLineColor( aOldLineColor );
+    SetFillColor( aOldFillColor );
+    EnableMapMode( bMap );
+}
+
+void OutputDevice::Erase()
+{
+    if ( !IsDeviceOutputNecessary() || ImplIsRecordLayout() )
+        return;
+
+    if ( mbBackground )
+    {
+        RasterOp eRasterOp = GetRasterOp();
+        if ( eRasterOp != RasterOp::OverPaint )
+            SetRasterOp( RasterOp::OverPaint );
+        DrawWallpaper( 0, 0, mnOutWidth, mnOutHeight, maBackground );
+        if ( eRasterOp != RasterOp::OverPaint )
+            SetRasterOp( eRasterOp );
+    }
+
+    if( mpAlphaVDev )
+        mpAlphaVDev->Erase();
+}
+
+void OutputDevice::Erase(const tools::Rectangle& rRect)
+{
+    const RasterOp eRasterOp = GetRasterOp();
+    if ( eRasterOp != RasterOp::OverPaint )
+        SetRasterOp( RasterOp::OverPaint );
+    DrawWallpaper(rRect, GetBackground());
+    if ( eRasterOp != RasterOp::OverPaint )
+        SetRasterOp( eRasterOp );
+
+    if (mpAlphaVDev)
+        mpAlphaVDev->Erase(rRect);
+}
+
+void OutputDevice::DrawBitmapWallpaper( tools::Long nX, tools::Long nY,
+                                            tools::Long nWidth, tools::Long nHeight,
+                                            const Wallpaper& rWallpaper )
+{
+    assert(!is_double_buffered_window());
+
+    const BitmapEx* pCached = rWallpaper.ImplGetCachedBitmap();
+
+    GDIMetaFile* pOldMetaFile = mpMetaFile;
+    const bool bOldMap = mbMap;
+
+    BitmapEx aBmpEx;
+    if( pCached )
+        aBmpEx = *pCached;
+    else
+        aBmpEx = rWallpaper.GetBitmap();
+
+    const tools::Long nBmpWidth = aBmpEx.GetSizePixel().Width();
+    const tools::Long nBmpHeight = aBmpEx.GetSizePixel().Height();
+    const bool bTransparent = aBmpEx.IsAlpha();
+
+    const WallpaperStyle eStyle = rWallpaper.GetStyle();
+
+    bool bDrawGradientBackground = false;
+    bool bDrawColorBackground = false;
+
+    // draw background
+    if( bTransparent )
+    {
+        if( rWallpaper.IsGradient() )
+            bDrawGradientBackground = true;
+        else
+        {
+            if( !pCached && !rWallpaper.GetColor().IsTransparent() )
+            {
+                ScopedVclPtrInstance< VirtualDevice > aVDev(  *this  );
+                aVDev->SetBackground( rWallpaper.GetColor() );
+                aVDev->SetOutputSizePixel( Size( nBmpWidth, nBmpHeight ) );
+                aVDev->DrawBitmapEx( Point(), aBmpEx );
+                aBmpEx = aVDev->GetBitmapEx( Point(), aVDev->GetOutputSizePixel() );
+            }
+
+            bDrawColorBackground = true;
+        }
+    }
+    else if( eStyle != WallpaperStyle::Tile && eStyle != WallpaperStyle::Scale )
+    {
+        if( rWallpaper.IsGradient() )
+            bDrawGradientBackground = true;
+        else
+            bDrawColorBackground = true;
+    }
+
+    // background of bitmap?
+    if( bDrawGradientBackground )
+    {
+        DrawGradientWallpaper( nX, nY, nWidth, nHeight, rWallpaper );
+    }
+    else if( bDrawColorBackground && bTransparent )
+    {
+        DrawColorWallpaper( nX, nY, nWidth, nHeight, rWallpaper );
+        bDrawColorBackground = false;
+    }
+
+    Point aPos;
+    Size aSize;
+
+    // calc pos and size
+    if( rWallpaper.IsRect() )
+    {
+        const tools::Rectangle aBound( LogicToPixel( rWallpaper.GetRect() ) );
+        aPos = aBound.TopLeft();
+        aSize = aBound.GetSize();
+    }
+    else
+    {
+        aPos = Point( 0, 0 );
+        aSize = Size( nWidth, nHeight );
+    }
+
+    mpMetaFile = nullptr;
+    EnableMapMode( false );
+    Push( vcl::PushFlags::CLIPREGION );
+    IntersectClipRegion( tools::Rectangle( Point( nX, nY ), Size( nWidth, nHeight ) ) );
+
+    bool bDrawn = false;
+
+    switch( eStyle )
+    {
+    case WallpaperStyle::Scale:
+        if( !pCached || ( pCached->GetSizePixel() != aSize ) )
+        {
+            if( pCached )
+                rWallpaper.ImplReleaseCachedBitmap();
+
+            aBmpEx = rWallpaper.GetBitmap();
+            aBmpEx.Scale( aSize );
+            aBmpEx = BitmapEx( aBmpEx.GetBitmap().CreateDisplayBitmap( this ), aBmpEx.GetAlpha() );
+        }
+        break;
+
+    case WallpaperStyle::TopLeft:
+        break;
+
+    case WallpaperStyle::Top:
+        aPos.AdjustX(( aSize.Width() - nBmpWidth ) >> 1 );
+        break;
+
+    case WallpaperStyle::TopRight:
+        aPos.AdjustX( aSize.Width() - nBmpWidth);
+        break;
+
+    case WallpaperStyle::Left:
+        aPos.AdjustY(( aSize.Height() - nBmpHeight ) >> 1 );
+        break;
+
+    case WallpaperStyle::Center:
+        aPos.AdjustX(( aSize.Width() - nBmpWidth ) >> 1 );
+        aPos.AdjustY(( aSize.Height() - nBmpHeight ) >> 1 );
+        break;
+
+    case WallpaperStyle::Right:
+        aPos.AdjustX(aSize.Width() - nBmpWidth);
+        aPos.AdjustY(( aSize.Height() - nBmpHeight ) >> 1 );
+        break;
+
+    case WallpaperStyle::BottomLeft:
+        aPos.AdjustY( aSize.Height() - nBmpHeight );
+        break;
+
+    case WallpaperStyle::Bottom:
+        aPos.AdjustX(( aSize.Width() - nBmpWidth ) >> 1 );
+        aPos.AdjustY( aSize.Height() - nBmpHeight );
+        break;
+
+    case WallpaperStyle::BottomRight:
+        aPos.AdjustX( aSize.Width() - nBmpWidth );
+        aPos.AdjustY( aSize.Height() - nBmpHeight );
+        break;
+
+    default:
+        {
+            const tools::Long nRight = nX + nWidth - 1;
+            const tools::Long nBottom = nY + nHeight - 1;
+            tools::Long nFirstX;
+            tools::Long nFirstY;
+
+            if( eStyle == WallpaperStyle::Tile )
+            {
+                nFirstX = aPos.X();
+                nFirstY = aPos.Y();
+            }
+            else
+            {
+                nFirstX = aPos.X() + ( ( aSize.Width() - nBmpWidth ) >> 1 );
+                nFirstY = aPos.Y() + ( ( aSize.Height() - nBmpHeight ) >> 1 );
+            }
+
+            const tools::Long nOffX = ( nFirstX - nX ) % nBmpWidth;
+            const tools::Long nOffY = ( nFirstY - nY ) % nBmpHeight;
+            tools::Long nStartX = nX + nOffX;
+            tools::Long nStartY = nY + nOffY;
+
+            if( nOffX > 0 )
+                nStartX -= nBmpWidth;
+
+            if( nOffY > 0 )
+                nStartY -= nBmpHeight;
+
+            for( tools::Long nBmpY = nStartY; nBmpY <= nBottom; nBmpY += nBmpHeight )
+            {
+                for( tools::Long nBmpX = nStartX; nBmpX <= nRight; nBmpX += nBmpWidth )
+                {
+                    DrawBitmapEx( Point( nBmpX, nBmpY ), aBmpEx );
+                }
+            }
+            bDrawn = true;
+        }
+        break;
+    }
+
+    if( !bDrawn )
+    {
+        // optimized for non-transparent bitmaps
+        if( bDrawColorBackground )
+        {
+            const Size aBmpSize( aBmpEx.GetSizePixel() );
+            const Point aTmpPoint;
+            const tools::Rectangle aOutRect( aTmpPoint, GetOutputSizePixel() );
+            const tools::Rectangle aColRect( Point( nX, nY ), Size( nWidth, nHeight ) );
+
+            tools::Rectangle aWorkRect( 0, 0, aOutRect.Right(), aPos.Y() - 1 );
+            aWorkRect.Justify();
+            aWorkRect.Intersection( aColRect );
+            if( !aWorkRect.IsEmpty() )
+            {
+                DrawColorWallpaper( aWorkRect.Left(), aWorkRect.Top(),
+                                    aWorkRect.GetWidth(), aWorkRect.GetHeight(),
+                                    rWallpaper );
+            }
+
+            aWorkRect = tools::Rectangle( 0, aPos.Y(), aPos.X() - 1, aPos.Y() + aBmpSize.Height() - 1 );
+            aWorkRect.Justify();
+            aWorkRect.Intersection( aColRect );
+            if( !aWorkRect.IsEmpty() )
+            {
+                DrawColorWallpaper( aWorkRect.Left(), aWorkRect.Top(),
+                                    aWorkRect.GetWidth(), aWorkRect.GetHeight(),
+                                    rWallpaper );
+            }
+
+            aWorkRect = tools::Rectangle( aPos.X() + aBmpSize.Width(), aPos.Y(),
+                                   aOutRect.Right(), aPos.Y() + aBmpSize.Height() - 1 );
+            aWorkRect.Justify();
+            aWorkRect.Intersection( aColRect );
+            if( !aWorkRect.IsEmpty() )
+            {
+                DrawColorWallpaper( aWorkRect.Left(), aWorkRect.Top(),
+                                    aWorkRect.GetWidth(), aWorkRect.GetHeight(),
+                                    rWallpaper );
+            }
+
+            aWorkRect = tools::Rectangle( 0, aPos.Y() + aBmpSize.Height(),
+                                   aOutRect.Right(), aOutRect.Bottom() );
+            aWorkRect.Justify();
+            aWorkRect.Intersection( aColRect );
+            if( !aWorkRect.IsEmpty() )
+            {
+                DrawColorWallpaper( aWorkRect.Left(), aWorkRect.Top(),
+                                    aWorkRect.GetWidth(), aWorkRect.GetHeight(),
+                                    rWallpaper );
+            }
+        }
+
+        DrawBitmapEx( aPos, aBmpEx );
+    }
+
+    rWallpaper.ImplSetCachedBitmap( aBmpEx );
+
+    Pop();
+    EnableMapMode( bOldMap );
+    mpMetaFile = pOldMetaFile;
+}
+
+void OutputDevice::DrawGradientWallpaper( tools::Long nX, tools::Long nY,
+                                          tools::Long nWidth, tools::Long nHeight,
+                                          const Wallpaper& rWallpaper )
+{
+    assert(!is_double_buffered_window());
+
+    tools::Rectangle aBound;
+    GDIMetaFile* pOldMetaFile = mpMetaFile;
+    const bool bOldMap = mbMap;
+
+    aBound = tools::Rectangle( Point( nX, nY ), Size( nWidth, nHeight ) );
+
+    mpMetaFile = nullptr;
+    EnableMapMode( false );
+    Push( vcl::PushFlags::CLIPREGION );
+    IntersectClipRegion( tools::Rectangle( Point( nX, nY ), Size( nWidth, nHeight ) ) );
+
+    DrawGradient( aBound, rWallpaper.GetGradient() );
+
+    Pop();
+    EnableMapMode( bOldMap );
+    mpMetaFile = pOldMetaFile;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */