/* -*- 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/.
 */

#include <test/bootstrapfixture.hxx>

#include <vcl/print.hxx>
#include <vcl/virdev.hxx>
#include <vcl/window.hxx>
#include <vcl/bitmapaccess.hxx>

#include <basegfx/matrix/b2dhommatrix.hxx>

class VclOutdevTest : public test::BootstrapFixture
{
public:
    VclOutdevTest() : BootstrapFixture(true, false) {}

    void testVirtualDevice();
    void testUseAfterDispose();
    void testPrinterBackgroundColor();
    void testWindowBackgroundColor();
    void testGetReadableFontColorPrinter();
    void testGetReadableFontColorWindow();

    CPPUNIT_TEST_SUITE(VclOutdevTest);
    CPPUNIT_TEST(testVirtualDevice);
    CPPUNIT_TEST(testUseAfterDispose);
    CPPUNIT_TEST(testPrinterBackgroundColor);
    CPPUNIT_TEST(testWindowBackgroundColor);
    CPPUNIT_TEST(testGetReadableFontColorPrinter);
    CPPUNIT_TEST(testGetReadableFontColorWindow);
    CPPUNIT_TEST_SUITE_END();
};

void VclOutdevTest::testGetReadableFontColorPrinter()
{
    ScopedVclPtrInstance<Printer> pPrinter;
    CPPUNIT_ASSERT_EQUAL(pPrinter->GetReadableFontColor(COL_WHITE, COL_WHITE), COL_BLACK);
}

void VclOutdevTest::testGetReadableFontColorWindow()
{
    ScopedVclPtrInstance<vcl::Window> pWindow(nullptr, WB_APP | WB_STDWORK);
    CPPUNIT_ASSERT_EQUAL(pWindow->GetReadableFontColor(COL_WHITE, COL_BLACK), COL_WHITE);
    CPPUNIT_ASSERT_EQUAL(pWindow->GetReadableFontColor(COL_WHITE, COL_WHITE), COL_BLACK);
    CPPUNIT_ASSERT_EQUAL(pWindow->GetReadableFontColor(COL_BLACK, COL_BLACK), COL_WHITE);
}

void VclOutdevTest::testPrinterBackgroundColor()
{
    ScopedVclPtrInstance<Printer> pPrinter;
    CPPUNIT_ASSERT_EQUAL(pPrinter->GetBackgroundColor(), COL_WHITE);
}

void VclOutdevTest::testWindowBackgroundColor()
{
    ScopedVclPtrInstance<vcl::Window> pWindow(nullptr, WB_APP | WB_STDWORK);
    pWindow->SetBackground(Wallpaper(COL_WHITE));
    CPPUNIT_ASSERT_EQUAL(pWindow->GetBackgroundColor(), COL_WHITE);
}

void VclOutdevTest::testVirtualDevice()
{
    ScopedVclPtrInstance< VirtualDevice > pVDev;
    pVDev->SetOutputSizePixel(Size(32,32));
    pVDev->SetBackground(Wallpaper(COL_WHITE));

    CPPUNIT_ASSERT_EQUAL(pVDev->GetBackgroundColor(), COL_WHITE);

    pVDev->Erase();
    pVDev->DrawPixel(Point(1,2),COL_BLUE);
    pVDev->DrawPixel(Point(31,30),COL_RED);

    Size aSize = pVDev->GetOutputSizePixel();
    CPPUNIT_ASSERT_EQUAL(Size(32,32), aSize);

    Bitmap aBmp = pVDev->GetBitmap(Point(),aSize);

#if 0
    OUString rFileName("/tmp/foo-unx.png");
    try {
        vcl::PNGWriter aWriter( aBmp );
        SvFileStream sOutput( rFileName, StreamMode::WRITE );
        aWriter.Write( sOutput );
        sOutput.Close();
    } catch (...) {
        SAL_WARN("vcl", "Error writing png to " << rFileName);
    }
#endif

    CPPUNIT_ASSERT_EQUAL(COL_WHITE, pVDev->GetPixel(Point(0,0)));
#if defined LINUX //TODO: various failures on Mac and Windows tinderboxes
    CPPUNIT_ASSERT_EQUAL(COL_BLUE, pVDev->GetPixel(Point(1,2)));
    CPPUNIT_ASSERT_EQUAL(COL_RED, pVDev->GetPixel(Point(31,30)));
#endif
    CPPUNIT_ASSERT_EQUAL(COL_WHITE, pVDev->GetPixel(Point(30,31)));

    // Gotcha: y and x swap for BitmapReadAccess: deep joy.
    Bitmap::ScopedReadAccess pAcc(aBmp);
    CPPUNIT_ASSERT_EQUAL(COL_WHITE, static_cast<Color>(pAcc->GetPixel(0,0)));
#if defined LINUX //TODO: various failures on Mac and Windows tinderboxes
    CPPUNIT_ASSERT_EQUAL(COL_BLUE, static_cast<Color>(pAcc->GetPixel(2,1)));
    CPPUNIT_ASSERT_EQUAL(COL_RED, static_cast<Color>(pAcc->GetPixel(30,31)));
#endif
    CPPUNIT_ASSERT_EQUAL(COL_WHITE, static_cast<Color>(pAcc->GetPixel(31,30)));

#if 0
    VclPtr<vcl::Window> pWin = VclPtr<WorkWindow>::Create( (vcl::Window *)nullptr );
    CPPUNIT_ASSERT( pWin );
    OutputDevice *pOutDev = pWin.get();
#endif
}

void VclOutdevTest::testUseAfterDispose()
{
    // Create a virtual device, enable map mode then dispose it.
    ScopedVclPtrInstance<VirtualDevice> pVDev;

    pVDev->EnableMapMode();

    pVDev->disposeOnce();

    // Make sure that these don't crash after dispose.
    pVDev->GetInverseViewTransformation();

    pVDev->GetViewTransformation();
}

CPPUNIT_TEST_SUITE_REGISTRATION(VclOutdevTest);

CPPUNIT_PLUGIN_IMPLEMENT();

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