xtabptrn.cxx

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 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#include <XPropertyTable.hxx>

#include <vcl/virdev.hxx>
#include <svx/strings.hrc>
#include <svx/dialmgr.hxx>
#include <svx/xtable.hxx>
#include <rtl/ustrbuf.hxx>
#include <vcl/settings.hxx>
#include <vcl/svapp.hxx>
#include <vcl/BitmapTools.hxx>

using namespace com::sun::star;

XBitmapEntry* XPatternList::GetBitmap(tools::Long nIndex) const
{
    return static_cast<XBitmapEntry*>( XPropertyList::Get(nIndex) );
}

uno::Reference< container::XNameContainer > XPatternList::createInstance()
{
    return uno::Reference< container::XNameContainer >(
        SvxUnoXBitmapTable_createInstance( this ), uno::UNO_QUERY );
}

bool XPatternList::Create()
{
    OUStringBuffer aStr(SvxResId(RID_SVXSTR_PATTERN));
    std::array<sal_uInt8,64> aArray;
    BitmapEx aBitmap;
    const sal_Int32 nLen(aStr.getLength() - 1);

    aArray.fill(0);

    // white/white bitmap
    aStr.append(" 1");
    aBitmap = vcl::bitmap::createHistorical8x8FromArray(aArray, COL_WHITE, COL_WHITE);
    Insert(std::make_unique<XBitmapEntry>(Graphic(aBitmap), aStr.toString()));

    // black/white bitmap
    aArray[ 0] = 1; aArray[ 9] = 1; aArray[18] = 1; aArray[27] = 1;
    aArray[36] = 1; aArray[45] = 1; aArray[54] = 1; aArray[63] = 1;
    aStr[nLen] = '2';
    aBitmap = vcl::bitmap::createHistorical8x8FromArray(aArray, COL_BLACK, COL_WHITE);
    Insert(std::make_unique<XBitmapEntry>(Graphic(aBitmap), aStr.toString()));

    // lightred/white bitmap
    aArray[ 7] = 1; aArray[14] = 1; aArray[21] = 1; aArray[28] = 1;
    aArray[35] = 1; aArray[42] = 1; aArray[49] = 1; aArray[56] = 1;
    aStr[nLen] = '3';
    aBitmap = vcl::bitmap::createHistorical8x8FromArray(aArray, COL_LIGHTRED, COL_WHITE);
    Insert(std::make_unique<XBitmapEntry>(Graphic(aBitmap), aStr.toString()));

    // lightblue/white bitmap
    aArray[24] = 1; aArray[25] = 1; aArray[26] = 1;
    aArray[29] = 1; aArray[30] = 1; aArray[31] = 1;
    aStr[nLen] = '4';
    aBitmap = vcl::bitmap::createHistorical8x8FromArray(aArray, COL_LIGHTBLUE, COL_WHITE);
    Insert(std::make_unique<XBitmapEntry>(Graphic(aBitmap), aStr.toString()));

    return true;
}

BitmapEx XPatternList::CreateBitmap( tools::Long nIndex, const Size& rSize ) const
{
    assert( nIndex < Count() );

    if(nIndex < Count())
    {
        BitmapEx rBitmapEx = GetBitmap( nIndex )->GetGraphicObject().GetGraphic().GetBitmapEx();
        ScopedVclPtrInstance< VirtualDevice > pVirtualDevice;
        pVirtualDevice->SetOutputSizePixel(rSize);

        if(rBitmapEx.IsAlpha())
        {
            const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();

            if(rStyleSettings.GetPreviewUsesCheckeredBackground())
            {
                const Point aNull(0, 0);
                static const sal_uInt32 nLen(8);
                static const Color aW(COL_WHITE);
                static const Color aG(0xef, 0xef, 0xef);

                pVirtualDevice->DrawCheckered(aNull, rSize, nLen, aW, aG);
            }
            else
            {
                pVirtualDevice->SetBackground(rStyleSettings.GetFieldColor());
                pVirtualDevice->Erase();
            }
        }

        if(rBitmapEx.GetSizePixel().Width() >= rSize.Width() && rBitmapEx.GetSizePixel().Height() >= rSize.Height())
        {
            rBitmapEx.Scale(rSize);
            pVirtualDevice->DrawBitmapEx(Point(0, 0), rBitmapEx);
        }
        else
        {
            const Size aBitmapSize(rBitmapEx.GetSizePixel());

            for(tools::Long y(0); y < rSize.Height(); y += aBitmapSize.Height())
            {
                for(tools::Long x(0); x < rSize.Width(); x += aBitmapSize.Width())
                {
                    pVirtualDevice->DrawBitmapEx(
                        Point(x, y),
                        rBitmapEx);
                }
            }
        }
        rBitmapEx = pVirtualDevice->GetBitmapEx(Point(0, 0), rSize);
        return rBitmapEx;
    }
    else
        return BitmapEx();
}

BitmapEx XPatternList::CreateBitmapForUI( tools::Long nIndex )
{
    const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();
    const Size& rSize = rStyleSettings.GetListBoxPreviewDefaultPixelSize();
    return CreateBitmap(nIndex, rSize);
}

BitmapEx XPatternList::GetBitmapForPreview( tools::Long nIndex, const Size& rSize )
{
    return CreateBitmap(nIndex, rSize);
}

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