1 files changed, 442 insertions, 0 deletions
diff --git a/sd/source/ui/slidesorter/view/SlsPageObjectPainter.cxx b/sd/source/ui/slidesorter/view/SlsPageObjectPainter.cxx
new file mode 100644
index 000000000..feaf5a5fa
--- /dev/null
+++ b/sd/source/ui/slidesorter/view/SlsPageObjectPainter.cxx
@@ -0,0 +1,442 @@
+/* -*- 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 <view/SlsPageObjectPainter.hxx>
+
+#include <model/SlsPageDescriptor.hxx>
+#include <view/SlideSorterView.hxx>
+#include <view/SlsPageObjectLayouter.hxx>
+#include <view/SlsLayouter.hxx>
+#include <view/SlsTheme.hxx>
+#include <SlideSorter.hxx>
+#include "SlsFramePainter.hxx"
+#include <cache/SlsPageCache.hxx>
+#include <Window.hxx>
+#include <sdpage.hxx>
+#include <vcl/virdev.hxx>
+#include <CustomAnimationEffect.hxx>
+#include <osl/diagnose.h>
+#include <memory>
+
+using namespace ::drawinglayer::primitive2d;
+
+namespace sd::slidesorter::view {
+
+//===== PageObjectPainter =====================================================
+
+PageObjectPainter::PageObjectPainter (
+    const SlideSorter& rSlideSorter)
+    : mrLayouter(rSlideSorter.GetView().GetLayouter()),
+      mpCache(rSlideSorter.GetView().GetPreviewCache()),
+      mpTheme(rSlideSorter.GetTheme()),
+      mpPageNumberFont(Theme::GetFont(Theme::Font_PageNumber, *rSlideSorter.GetContentWindow()->GetOutDev())),
+      mpShadowPainter(new FramePainter(mpTheme->GetIcon(Theme::Icon_RawShadow))),
+      mpFocusBorderPainter(new FramePainter(mpTheme->GetIcon(Theme::Icon_FocusBorder)))
+{
+    // Replace the color (not the alpha values) in the focus border with a
+    // color derived from the current selection color.
+    Color aColor (mpTheme->GetColor(Theme::Color_Selection));
+    sal_uInt16 nHue, nSat, nBri;
+    aColor.RGBtoHSB(nHue, nSat, nBri);
+    aColor = Color::HSBtoRGB(nHue, 28, 65);
+    mpFocusBorderPainter->AdaptColor(aColor);
+}
+
+PageObjectPainter::~PageObjectPainter()
+{
+}
+
+void PageObjectPainter::PaintPageObject (
+    OutputDevice& rDevice,
+    const model::SharedPageDescriptor& rpDescriptor)
+{
+    if (!UpdatePageObjectLayouter())
+        return;
+
+    PageObjectLayouter *pPageObjectLayouter = mrLayouter.GetPageObjectLayouter().get();
+    // Turn off antialiasing to avoid the bitmaps from being
+    // shifted by fractions of a pixel and thus show blurry edges.
+    const AntialiasingFlags nSavedAntialiasingMode (rDevice.GetAntialiasing());
+    rDevice.SetAntialiasing(nSavedAntialiasingMode & ~AntialiasingFlags::Enable);
+
+    PaintBackground(pPageObjectLayouter, rDevice, rpDescriptor);
+    PaintPreview(pPageObjectLayouter, rDevice, rpDescriptor);
+    PaintPageNumber(pPageObjectLayouter, rDevice, rpDescriptor);
+    PaintTransitionEffect(pPageObjectLayouter, rDevice, rpDescriptor);
+    if (rpDescriptor->GetPage()->hasAnimationNode())
+        PaintCustomAnimationEffect(pPageObjectLayouter, rDevice, rpDescriptor);
+    rDevice.SetAntialiasing(nSavedAntialiasingMode);
+}
+
+bool PageObjectPainter::UpdatePageObjectLayouter()
+{
+    // The page object layouter is quite volatile. It may have been replaced
+    // since the last call.  Update it now.
+    PageObjectLayouter *pPageObjectLayouter = mrLayouter.GetPageObjectLayouter().get();
+    if ( ! pPageObjectLayouter)
+    {
+        OSL_FAIL("no page object layouter");
+        return false;
+    }
+
+    return true;
+}
+
+void PageObjectPainter::SetTheme (const std::shared_ptr<view::Theme>& rpTheme)
+{
+    mpTheme = rpTheme;
+}
+
+void PageObjectPainter::PaintBackground (
+    PageObjectLayouter *pPageObjectLayouter,
+    OutputDevice& rDevice,
+    const model::SharedPageDescriptor& rpDescriptor) const
+{
+    PaintBackgroundDetail(pPageObjectLayouter, rDevice, rpDescriptor);
+
+    // Fill the interior of the preview area with the default background
+    // color of the page.
+    SdPage* pPage = rpDescriptor->GetPage();
+    if (pPage != nullptr)
+    {
+        rDevice.SetFillColor(pPage->GetPageBackgroundColor(nullptr));
+        rDevice.SetLineColor(pPage->GetPageBackgroundColor(nullptr));
+        const ::tools::Rectangle aPreviewBox (pPageObjectLayouter->GetBoundingBox(
+            rpDescriptor,
+            PageObjectLayouter::Part::Preview,
+            PageObjectLayouter::ModelCoordinateSystem));
+        rDevice.DrawRect(aPreviewBox);
+    }
+}
+
+void PageObjectPainter::PaintPreview (
+    PageObjectLayouter *pPageObjectLayouter,
+    OutputDevice& rDevice,
+    const model::SharedPageDescriptor& rpDescriptor) const
+{
+    const ::tools::Rectangle aBox (pPageObjectLayouter->GetBoundingBox(
+        rpDescriptor,
+        PageObjectLayouter::Part::Preview,
+        PageObjectLayouter::ModelCoordinateSystem));
+
+    if (mpCache == nullptr)
+        return;
+
+    const SdrPage* pPage = rpDescriptor->GetPage();
+    mpCache->SetPreciousFlag(pPage, true);
+
+    const BitmapEx aPreview (GetPreviewBitmap(rpDescriptor, &rDevice));
+    if ( ! aPreview.IsEmpty())
+    {
+        if (aPreview.GetSizePixel() != aBox.GetSize())
+            rDevice.DrawBitmapEx(aBox.TopLeft(), aBox.GetSize(), aPreview);
+        else
+            rDevice.DrawBitmapEx(aBox.TopLeft(), aPreview);
+    }
+}
+
+BitmapEx PageObjectPainter::CreateMarkedPreview (
+    const Size& rSize,
+    const BitmapEx& rPreview,
+    const BitmapEx& rOverlay,
+    const OutputDevice* pReferenceDevice)
+{
+    ScopedVclPtr<VirtualDevice> pDevice;
+    if (pReferenceDevice != nullptr)
+        pDevice.disposeAndReset(VclPtr<VirtualDevice>::Create(*pReferenceDevice));
+    else
+        pDevice.disposeAndReset(VclPtr<VirtualDevice>::Create());
+    pDevice->SetOutputSizePixel(rSize);
+
+    pDevice->DrawBitmapEx(Point(0,0), rSize, rPreview);
+
+    // Paint bitmap tiled over the preview to mark it as excluded.
+    const sal_Int32 nIconWidth (rOverlay.GetSizePixel().Width());
+    const sal_Int32 nIconHeight (rOverlay.GetSizePixel().Height());
+    if (nIconWidth>0 && nIconHeight>0)
+    {
+        for (::tools::Long nX=0; nX<rSize.Width(); nX+=nIconWidth)
+            for (::tools::Long nY=0; nY<rSize.Height(); nY+=nIconHeight)
+                pDevice->DrawBitmapEx(Point(nX,nY), rOverlay);
+    }
+    return pDevice->GetBitmapEx(Point(0,0), rSize);
+}
+
+BitmapEx PageObjectPainter::GetPreviewBitmap (
+    const model::SharedPageDescriptor& rpDescriptor,
+    const OutputDevice* pReferenceDevice) const
+{
+    const SdrPage* pPage = rpDescriptor->GetPage();
+    const bool bIsExcluded (rpDescriptor->HasState(model::PageDescriptor::ST_Excluded));
+
+    if (bIsExcluded)
+    {
+        PageObjectLayouter *pPageObjectLayouter = mrLayouter.GetPageObjectLayouter().get();
+
+        BitmapEx aMarkedPreview (mpCache->GetMarkedPreviewBitmap(pPage));
+        const ::tools::Rectangle aPreviewBox (pPageObjectLayouter->GetBoundingBox(
+            rpDescriptor,
+            PageObjectLayouter::Part::Preview,
+            PageObjectLayouter::ModelCoordinateSystem));
+        if (aMarkedPreview.IsEmpty() || aMarkedPreview.GetSizePixel()!=aPreviewBox.GetSize())
+        {
+            aMarkedPreview = CreateMarkedPreview(
+                aPreviewBox.GetSize(),
+                mpCache->GetPreviewBitmap(pPage,true),
+                mpTheme->GetIcon(Theme::Icon_HideSlideOverlay),
+                pReferenceDevice);
+            mpCache->SetMarkedPreviewBitmap(pPage, aMarkedPreview);
+        }
+        return aMarkedPreview;
+    }
+    else
+    {
+        return mpCache->GetPreviewBitmap(pPage,false);
+    }
+}
+
+void PageObjectPainter::PaintPageNumber (
+    PageObjectLayouter *pPageObjectLayouter,
+    OutputDevice& rDevice,
+    const model::SharedPageDescriptor& rpDescriptor) const
+{
+    const ::tools::Rectangle aBox (pPageObjectLayouter->GetBoundingBox(
+        rpDescriptor,
+        PageObjectLayouter::Part::PageNumber,
+        PageObjectLayouter::ModelCoordinateSystem));
+
+    // Determine the color of the page number.
+    Color aPageNumberColor (mpTheme->GetColor(Theme::Color_PageNumberDefault));
+    if (rpDescriptor->HasState(model::PageDescriptor::ST_MouseOver) ||
+        rpDescriptor->HasState(model::PageDescriptor::ST_Selected))
+    {
+        // Page number is painted on background for hover or selection or
+        // both.  Each of these background colors has a predefined luminance
+        // which is compatible with the PageNumberHover color.
+        aPageNumberColor = mpTheme->GetColor(Theme::Color_PageNumberHover);
+    }
+    else
+    {
+        const Color aBackgroundColor (mpTheme->GetColor(Theme::Color_Background));
+        const sal_Int32 nBackgroundLuminance (aBackgroundColor.GetLuminance());
+        // When the background color is black then this is interpreted as
+        // high contrast mode and the font color is set to white.
+        if (nBackgroundLuminance == 0)
+            aPageNumberColor = mpTheme->GetColor(Theme::Color_PageNumberHighContrast);
+        else
+        {
+            // Compare luminance of default page number color and background
+            // color.  When the two are similar then use a darker
+            // (preferred) or brighter font color.
+            const sal_Int32 nFontLuminance (aPageNumberColor.GetLuminance());
+            if (abs(nBackgroundLuminance - nFontLuminance) < 60)
+            {
+                if (nBackgroundLuminance > nFontLuminance-30)
+                    aPageNumberColor = mpTheme->GetColor(Theme::Color_PageNumberBrightBackground);
+                else
+                    aPageNumberColor = mpTheme->GetColor(Theme::Color_PageNumberDarkBackground);
+            }
+        }
+    }
+
+    // Paint the page number.
+    OSL_ASSERT(rpDescriptor->GetPage()!=nullptr);
+    const sal_Int32 nPageNumber ((rpDescriptor->GetPage()->GetPageNum() - 1) / 2 + 1);
+    const OUString sPageNumber(OUString::number(nPageNumber));
+    rDevice.SetFont(*mpPageNumberFont);
+    rDevice.SetTextColor(aPageNumberColor);
+    rDevice.DrawText(aBox, sPageNumber, DrawTextFlags::Right | DrawTextFlags::VCenter);
+}
+
+void PageObjectPainter::PaintTransitionEffect (
+    PageObjectLayouter *pPageObjectLayouter,
+    OutputDevice& rDevice,
+    const model::SharedPageDescriptor& rpDescriptor)
+{
+    const SdPage* pPage = rpDescriptor->GetPage();
+    if (pPage!=nullptr && pPage->getTransitionType() > 0)
+    {
+        const ::tools::Rectangle aBox (pPageObjectLayouter->GetBoundingBox(
+            rpDescriptor,
+            PageObjectLayouter::Part::TransitionEffectIndicator,
+            PageObjectLayouter::ModelCoordinateSystem));
+
+        rDevice.DrawBitmapEx(
+            aBox.TopCenter(),
+            pPageObjectLayouter->GetTransitionEffectIcon().GetBitmapEx());
+    }
+}
+
+void PageObjectPainter::PaintCustomAnimationEffect (
+    PageObjectLayouter *pPageObjectLayouter,
+    OutputDevice& rDevice,
+    const model::SharedPageDescriptor& rpDescriptor)
+{
+    SdPage* pPage = rpDescriptor->GetPage();
+    std::shared_ptr< MainSequence > aMainSequence = pPage->getMainSequence();
+    EffectSequence::iterator aIter = aMainSequence->getBegin();
+    EffectSequence::iterator aEnd = aMainSequence->getEnd();
+    if ( aIter != aEnd )
+    {
+        const ::tools::Rectangle aBox (pPageObjectLayouter->GetBoundingBox(
+            rpDescriptor,
+            PageObjectLayouter::Part::CustomAnimationEffectIndicator,
+            PageObjectLayouter::ModelCoordinateSystem));
+        rDevice.DrawBitmapEx(
+            aBox.TopCenter(),
+            pPageObjectLayouter->GetCustomAnimationEffectIcon().GetBitmapEx());
+    }
+}
+
+void PageObjectPainter::PaintBackgroundDetail (
+    PageObjectLayouter *pPageObjectLayouter,
+    OutputDevice& rDevice,
+    const model::SharedPageDescriptor& rpDescriptor) const
+{
+    enum State { None = 0x00, Selected = 0x01, MouseOver = 0x02, Focused = 0x04 };
+    const int eState =
+          (rpDescriptor->HasState(model::PageDescriptor::ST_Selected) ? Selected : None)
+        | (rpDescriptor->HasState(model::PageDescriptor::ST_MouseOver) ? MouseOver : None)
+        | (rpDescriptor->HasState(model::PageDescriptor::ST_Focused) ? Focused : None);
+
+    bool bHasFocusBorder;
+    Theme::GradientColorType eColorType;
+
+    switch (eState)
+    {
+        case MouseOver | Selected | Focused:
+            eColorType = Theme::Gradient_MouseOverSelectedAndFocusedPage;
+            bHasFocusBorder = true;
+            break;
+
+        case MouseOver | Selected:
+            eColorType = Theme::Gradient_MouseOverSelected;
+            bHasFocusBorder = false;
+            break;
+
+        case MouseOver:
+            eColorType = Theme::Gradient_MouseOverPage;
+            bHasFocusBorder = false;
+            break;
+
+        case MouseOver | Focused:
+            eColorType = Theme::Gradient_MouseOverPage;
+            bHasFocusBorder = true;
+            break;
+
+        case Selected | Focused:
+            eColorType = Theme::Gradient_SelectedAndFocusedPage;
+            bHasFocusBorder = true;
+            break;
+
+        case Selected:
+            eColorType = Theme::Gradient_SelectedPage;
+            bHasFocusBorder = false;
+            break;
+
+        case Focused:
+            eColorType = Theme::Gradient_FocusedPage;
+            bHasFocusBorder = true;
+            break;
+
+        case None:
+        default:
+            eColorType = Theme::Gradient_NormalPage;
+            bHasFocusBorder = false;
+            break;
+    }
+
+    const ::tools::Rectangle aFocusSize (pPageObjectLayouter->GetBoundingBox(
+                                        rpDescriptor,
+                                        PageObjectLayouter::Part::FocusIndicator,
+                                        PageObjectLayouter::ModelCoordinateSystem));
+
+    const ::tools::Rectangle aPageObjectBox (pPageObjectLayouter->GetBoundingBox(
+                                        rpDescriptor,
+                                        PageObjectLayouter::Part::PageObject,
+                                        PageObjectLayouter::ModelCoordinateSystem));
+
+    // Fill the background with the background color of the slide sorter.
+    const Color aBackgroundColor (mpTheme->GetColor(Theme::Color_Background));
+    rDevice.SetFillColor(aBackgroundColor);
+    rDevice.SetLineColor(aBackgroundColor);
+    rDevice.DrawRect(aFocusSize);
+
+    // Paint the slide area with a linear gradient that starts some pixels
+    // below the top and ends some pixels above the bottom.
+    const Color aTopColor(mpTheme->GetGradientColor(eColorType, Theme::GradientColorClass::Fill1));
+    const Color aBottomColor(mpTheme->GetGradientColor(eColorType, Theme::GradientColorClass::Fill2));
+    if (aTopColor != aBottomColor)
+    {
+        Gradient gradient(GradientStyle::Linear, aTopColor, aBottomColor);
+        rDevice.DrawGradient(aPageObjectBox, gradient);
+    }
+    else
+    {
+        rDevice.SetFillColor(aTopColor);
+        rDevice.DrawRect(aPageObjectBox);
+    }
+
+    // Paint the simple border and, for some backgrounds, the focus border.
+    if (bHasFocusBorder)
+        mpFocusBorderPainter->PaintFrame(rDevice, aPageObjectBox);
+    else
+        PaintBorder(rDevice, eColorType, aPageObjectBox);
+
+    // Get bounding box of the preview around which a shadow is painted.
+    // Compensate for the border around the preview.
+    const ::tools::Rectangle aBox (pPageObjectLayouter->GetBoundingBox(
+                                rpDescriptor,
+                                PageObjectLayouter::Part::Preview,
+                                PageObjectLayouter::ModelCoordinateSystem));
+    ::tools::Rectangle aFrameBox (aBox.Left()-1,aBox.Top()-1,aBox.Right()+1,aBox.Bottom()+1);
+    mpShadowPainter->PaintFrame(rDevice, aFrameBox);
+}
+
+void PageObjectPainter::PaintBorder (
+    OutputDevice& rDevice,
+    const Theme::GradientColorType eColorType,
+    const ::tools::Rectangle& rBox) const
+{
+    rDevice.SetFillColor();
+    const sal_Int32 nBorderWidth (1);
+    for (int nIndex=0; nIndex<nBorderWidth; ++nIndex)
+    {
+        const int nDelta (nIndex);
+        rDevice.SetLineColor(mpTheme->GetGradientColor(eColorType, Theme::GradientColorClass::Border2));
+        rDevice.DrawLine(
+            Point(rBox.Left()-nDelta, rBox.Top()-nDelta),
+            Point(rBox.Left()-nDelta, rBox.Bottom()+nDelta));
+        rDevice.DrawLine(
+            Point(rBox.Left()-nDelta, rBox.Bottom()+nDelta),
+            Point(rBox.Right()+nDelta, rBox.Bottom()+nDelta));
+        rDevice.DrawLine(
+            Point(rBox.Right()+nDelta, rBox.Bottom()+nDelta),
+            Point(rBox.Right()+nDelta, rBox.Top()-nDelta));
+
+        rDevice.SetLineColor(mpTheme->GetGradientColor(eColorType, Theme::GradientColorClass::Border1));
+        rDevice.DrawLine(
+            Point(rBox.Left()-nDelta, rBox.Top()-nDelta),
+            Point(rBox.Right()+nDelta, rBox.Top()-nDelta));
+    }
+}
+
+} // end of namespace sd::slidesorter::view
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */