xtabgrdt.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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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/svapp.hxx>
#include <vcl/settings.hxx>
#include <osl/diagnose.h>
 
#include <drawinglayer/attribute/fillgradientattribute.hxx>
#include <drawinglayer/primitive2d/PolygonHairlinePrimitive2D.hxx>
#include <drawinglayer/primitive2d/PolyPolygonGradientPrimitive2D.hxx>
#include <drawinglayer/processor2d/baseprocessor2d.hxx>
#include <drawinglayer/processor2d/processor2dtools.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/utils/gradienttools.hxx>
#include <memory>
 
using namespace com::sun::star;
 
XGradientList::XGradientList( const OUString& rPath, const OUString& rReferer )
:   XPropertyList( XPropertyListType::Gradient, rPath, rReferer )
{
}
 
XGradientList::~XGradientList()
{
}
 
void XGradientList::Replace(std::unique_ptr<XGradientEntry> pEntry, tools::Long nIndex)
{
    XPropertyList::Replace(std::move(pEntry), nIndex);
}
 
XGradientEntry* XGradientList::GetGradient(tools::Long nIndex) const
{
    return static_cast<XGradientEntry*>( XPropertyList::Get( nIndex ) );
}
 
uno::Reference< container::XNameContainer > XGradientList::createInstance()
{
    return SvxUnoXGradientTable_createInstance( *this );
}
 
bool XGradientList::Create()
{
    OUStringBuffer aStr(SvxResId(RID_SVXSTR_GRADIENT) + " 1");
    sal_Int32 nLen = aStr.getLength() - 1;
 
    // XGradient() default already creates [COL_BLACK, COL_WHITE] as defaults
    Insert(std::make_unique<XGradientEntry>(basegfx::BGradient(),aStr.toString()));
 
    aStr[nLen] = '2';
    Insert(std::make_unique<XGradientEntry>(basegfx::BGradient(basegfx::BColorStops(COL_BLUE.getBColor(),    COL_RED.getBColor()),     css::awt::GradientStyle_AXIAL     ,  300_deg10,20,20,10,100,100),aStr.toString()));
    aStr[nLen] = '3';
    Insert(std::make_unique<XGradientEntry>(basegfx::BGradient(basegfx::BColorStops(COL_RED.getBColor(),     COL_YELLOW.getBColor()),  css::awt::GradientStyle_RADIAL    ,  600_deg10,30,30,20,100,100),aStr.toString()));
    aStr[nLen] = '4';
    Insert(std::make_unique<XGradientEntry>(basegfx::BGradient(basegfx::BColorStops(COL_YELLOW.getBColor(),  COL_GREEN.getBColor()),   css::awt::GradientStyle_ELLIPTICAL,  900_deg10,40,40,30,100,100),aStr.toString()));
    aStr[nLen] = '5';
    Insert(std::make_unique<XGradientEntry>(basegfx::BGradient(basegfx::BColorStops(COL_GREEN.getBColor(),   COL_MAGENTA.getBColor()), css::awt::GradientStyle_SQUARE    , 1200_deg10,50,50,40,100,100),aStr.toString()));
    aStr[nLen] = '6';
    Insert(std::make_unique<XGradientEntry>(basegfx::BGradient(basegfx::BColorStops(COL_MAGENTA.getBColor(), COL_YELLOW.getBColor()),  css::awt::GradientStyle_RECT      , 1900_deg10,60,60,50,100,100),aStr.toString()));
 
    return true;
}
 
BitmapEx XGradientList::CreateBitmap( tools::Long nIndex, const Size& rSize ) const
{
    BitmapEx aRetval;
 
    OSL_ENSURE(nIndex < Count(), "OOps, access out of range (!)");
 
    if(nIndex < Count())
    {
        const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();
        // prepare polygon geometry for rectangle
        basegfx::B2DPolygon aRectangle(
            basegfx::utils::createPolygonFromRect(
                basegfx::B2DRange(0.0, 0.0, rSize.Width(), rSize.Height())));
 
        const basegfx::BGradient& rGradient = GetGradient(nIndex)->GetGradient();
        basegfx::BColorStops aColorStops(rGradient.GetColorStops());
 
        if (rGradient.GetStartIntens() != 100 || rGradient.GetEndIntens() != 100)
        {
            // Need to do the (old, crazy) blend against black
            aColorStops.blendToIntensity(
                    rGradient.GetStartIntens() * 0.01,
                rGradient.GetEndIntens() * 0.01,
                basegfx::BColor()); // COL_BLACK
        }
 
        drawinglayer::attribute::FillGradientAttribute aFillGradient(
            rGradient.GetGradientStyle(),
            static_cast<double>(rGradient.GetBorder()) * 0.01,
            static_cast<double>(rGradient.GetXOffset()) * 0.01,
            static_cast<double>(rGradient.GetYOffset()) * 0.01,
            toRadians(rGradient.GetAngle()),
            aColorStops);
 
        const drawinglayer::primitive2d::Primitive2DReference aGradientPrimitive(
            new drawinglayer::primitive2d::PolyPolygonGradientPrimitive2D(
                basegfx::B2DPolyPolygon(aRectangle),
                std::move(aFillGradient)));
 
        const basegfx::BColor aBlack(0.0, 0.0, 0.0);
        const drawinglayer::primitive2d::Primitive2DReference aBlackRectanglePrimitive(
            new drawinglayer::primitive2d::PolygonHairlinePrimitive2D(
                std::move(aRectangle),
                aBlack));
 
        // prepare VirtualDevice
        ScopedVclPtrInstance< VirtualDevice > pVirtualDevice;
        const drawinglayer::geometry::ViewInformation2D aNewViewInformation2D;
 
        pVirtualDevice->SetOutputSizePixel(rSize);
        pVirtualDevice->SetDrawMode(rStyleSettings.GetHighContrastMode()
            ? DrawModeFlags::SettingsLine | DrawModeFlags::SettingsFill | DrawModeFlags::SettingsText | DrawModeFlags::SettingsGradient
            : DrawModeFlags::Default);
 
        // create processor and draw primitives
        std::unique_ptr<drawinglayer::processor2d::BaseProcessor2D> pProcessor2D(drawinglayer::processor2d::createPixelProcessor2DFromOutputDevice(
            *pVirtualDevice,
            aNewViewInformation2D));
 
        drawinglayer::primitive2d::Primitive2DContainer aSequence(2);
 
        aSequence[0] = aGradientPrimitive;
        aSequence[1] = aBlackRectanglePrimitive;
 
        pProcessor2D->process(aSequence);
        pProcessor2D.reset();
 
        // get result bitmap and scale
        aRetval = pVirtualDevice->GetBitmapEx(Point(0, 0), pVirtualDevice->GetOutputSizePixel());
    }
 
    return aRetval;
}
 
BitmapEx XGradientList::CreateBitmapForUI(tools::Long nIndex)
{
    const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();
    const Size& rSize = rStyleSettings.GetListBoxPreviewDefaultPixelSize();
    return CreateBitmap(nIndex, rSize);
}
 
BitmapEx XGradientList::GetBitmapForPreview(tools::Long nIndex, const Size& rSize)
{
    return CreateBitmap(nIndex, rSize);
}
 
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