1 files changed, 184 insertions, 0 deletions
diff --git a/vcl/source/control/imgctrl.cxx b/vcl/source/control/imgctrl.cxx
new file mode 100644
index 000000000..414824b29
--- /dev/null
+++ b/vcl/source/control/imgctrl.cxx
@@ -0,0 +1,184 @@
+/* -*- 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/toolkit/imgctrl.hxx>
+
+#include <com/sun/star/awt/ImageScaleMode.hpp>
+#include <osl/diagnose.h>
+
+namespace ImageScaleMode = css::awt::ImageScaleMode;
+
+ImageControl::ImageControl( vcl::Window* pParent, WinBits nStyle )
+    :FixedImage( pParent, nStyle )
+    ,mnScaleMode( ImageScaleMode::ANISOTROPIC )
+{
+}
+
+void ImageControl::SetScaleMode( const ::sal_Int16 _nMode )
+{
+    if ( _nMode != mnScaleMode )
+    {
+        mnScaleMode = _nMode;
+        Invalidate();
+    }
+}
+
+void ImageControl::Resize()
+{
+    Invalidate();
+}
+
+namespace
+{
+    Size lcl_calcPaintSize( const tools::Rectangle& _rPaintRect, const Size& _rBitmapSize )
+    {
+        const Size aPaintSize = _rPaintRect.GetSize();
+
+        const double nRatioX = 1.0 * aPaintSize.Width() / _rBitmapSize.Width();
+        const double nRatioY = 1.0 * aPaintSize.Height() / _rBitmapSize.Height();
+        const double nRatioMin = ::std::min( nRatioX, nRatioY );
+
+        return Size( tools::Long( _rBitmapSize.Width() * nRatioMin ), tools::Long( _rBitmapSize.Height() * nRatioMin ) );
+    }
+
+    Point lcl_centerWithin( const tools::Rectangle& _rArea, const Size& _rObjectSize )
+    {
+        Point aPos( _rArea.TopLeft() );
+        aPos.AdjustX(( _rArea.GetWidth() - _rObjectSize.Width() ) / 2 );
+        aPos.AdjustY(( _rArea.GetHeight() - _rObjectSize.Height() ) / 2 );
+        return aPos;
+    }
+}
+
+void ImageControl::ImplDraw(OutputDevice& rDev, const Point& rPos, const Size& rSize) const
+{
+    DrawImageFlags nStyle = DrawImageFlags::NONE;
+    if ( !IsEnabled() )
+        nStyle |= DrawImageFlags::Disable;
+
+    const Image& rImage( GetModeImage() );
+    const tools::Rectangle aDrawRect( rPos, rSize );
+    if (!rImage)
+    {
+        OUString  sText( GetText() );
+        if ( sText.isEmpty() )
+            return;
+
+        WinBits nWinStyle = GetStyle();
+        DrawTextFlags nTextStyle = FixedText::ImplGetTextStyle( nWinStyle );
+        if ( !IsEnabled() )
+            nTextStyle |= DrawTextFlags::Disable;
+
+        rDev.DrawText( aDrawRect, sText, nTextStyle );
+        return;
+    }
+
+    const Size& rBitmapSize = rImage.GetSizePixel();
+
+    switch ( mnScaleMode )
+    {
+    case ImageScaleMode::NONE:
+    {
+        rDev.DrawImage(lcl_centerWithin( aDrawRect, rBitmapSize ), rImage, nStyle);
+    }
+    break;
+
+    case ImageScaleMode::ISOTROPIC:
+    {
+        const Size aPaintSize = lcl_calcPaintSize( aDrawRect, rBitmapSize );
+        rDev.DrawImage(lcl_centerWithin(aDrawRect, aPaintSize), aPaintSize, rImage, nStyle);
+    }
+    break;
+
+    case ImageScaleMode::ANISOTROPIC:
+    {
+        rDev.DrawImage(
+            aDrawRect.TopLeft(),
+            aDrawRect.GetSize(),
+            rImage, nStyle );
+    }
+    break;
+
+    default:
+        OSL_ENSURE( false, "ImageControl::ImplDraw: unhandled scale mode!" );
+        break;
+
+    }   // switch ( mnScaleMode )
+}
+
+void ImageControl::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& /*rRect*/)
+{
+    ImplDraw(rRenderContext, Point(), GetOutputSizePixel());
+
+    if (!HasFocus())
+        return;
+
+    vcl::Window* pBorderWindow = GetWindow(GetWindowType::Border);
+
+    bool bFlat = (GetBorderStyle() == WindowBorderStyle::MONO);
+    tools::Rectangle aRect(Point(0,0), pBorderWindow->GetOutputSizePixel());
+    Color oldLineCol = pBorderWindow->GetOutDev()->GetLineColor();
+    Color oldFillCol = pBorderWindow->GetOutDev()->GetFillColor();
+    pBorderWindow->GetOutDev()->SetFillColor();
+    pBorderWindow->GetOutDev()->SetLineColor(bFlat ? COL_WHITE : COL_BLACK);
+    pBorderWindow->GetOutDev()->DrawRect(aRect);
+    aRect.AdjustLeft( 1 );
+    aRect.AdjustRight( -1 );
+    aRect.AdjustTop( 1 );
+    aRect.AdjustBottom( -1 );
+    pBorderWindow->GetOutDev()->SetLineColor(bFlat ? COL_BLACK : COL_WHITE);
+    pBorderWindow->GetOutDev()->DrawRect(aRect);
+    pBorderWindow->GetOutDev()->SetLineColor(oldLineCol);
+    pBorderWindow->GetOutDev()->SetFillColor(oldFillCol);
+
+}
+
+void ImageControl::Draw( OutputDevice* pDev, const Point& rPos, SystemTextColorFlags )
+{
+    const Point     aPos  = pDev->LogicToPixel( rPos );
+    const Size      aSize = GetSizePixel();
+    tools::Rectangle aRect( aPos, aSize );
+
+    pDev->Push();
+    pDev->SetMapMode();
+
+    // Border
+    if ( GetStyle() & WB_BORDER )
+    {
+        ImplDrawFrame( pDev, aRect );
+    }
+    pDev->IntersectClipRegion( aRect );
+    ImplDraw( *pDev, aRect.TopLeft(), aRect.GetSize() );
+
+    pDev->Pop();
+}
+
+void ImageControl::GetFocus()
+{
+    FixedImage::GetFocus();
+    GetWindow( GetWindowType::Border )->Invalidate();
+}
+
+void ImageControl::LoseFocus()
+{
+    FixedImage::GetFocus();
+    GetWindow( GetWindowType::Border )->Invalidate();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */