diff options
Diffstat (limited to 'sd/source/ui/slidesorter/view/SlsInsertionIndicatorOverlay.cxx')
| -rw-r--r-- | sd/source/ui/slidesorter/view/SlsInsertionIndicatorOverlay.cxx | 360 |
1 files changed, 360 insertions, 0 deletions
diff --git a/sd/source/ui/slidesorter/view/SlsInsertionIndicatorOverlay.cxx b/sd/source/ui/slidesorter/view/SlsInsertionIndicatorOverlay.cxx new file mode 100644 index 0000000000..3e5139d32f --- /dev/null +++ b/sd/source/ui/slidesorter/view/SlsInsertionIndicatorOverlay.cxx @@ -0,0 +1,360 @@ +/* -*- 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/SlsInsertionIndicatorOverlay.hxx> + +#include <SlideSorter.hxx> +#include <view/SlideSorterView.hxx> +#include <view/SlsLayouter.hxx> +#include <view/SlsPageObjectLayouter.hxx> +#include <view/SlsTheme.hxx> +#include "SlsFramePainter.hxx" +#include "SlsLayeredDevice.hxx" +#include <DrawDocShell.hxx> +#include <drawdoc.hxx> +#include <Window.hxx> + +#include <o3tl/safeint.hxx> +#include <rtl/math.hxx> +#include <vcl/virdev.hxx> +#include <basegfx/range/b2drectangle.hxx> +#include <basegfx/polygon/b2dpolygon.hxx> +#include <basegfx/polygon/b2dpolygontools.hxx> + +namespace { + +const double gnPreviewOffsetScale = 1.0 / 8.0; + +::tools::Rectangle GrowRectangle (const ::tools::Rectangle& rBox, const sal_Int32 nOffset) +{ + return ::tools::Rectangle ( + rBox.Left() - nOffset, + rBox.Top() - nOffset, + rBox.Right() + nOffset, + rBox.Bottom() + nOffset); +} + +sal_Int32 RoundToInt (const double nValue) { return sal_Int32(::rtl::math::round(nValue)); } + +} // end of anonymous namespace + +namespace sd::slidesorter::view { + +//===== InsertionIndicatorOverlay =========================================== + +const sal_Int32 gnShadowBorder = 3; +const sal_Int32 gnLayerIndex = 2; + +InsertionIndicatorOverlay::InsertionIndicatorOverlay (SlideSorter& rSlideSorter) + : mrSlideSorter(rSlideSorter), + mbIsVisible(false), + mpShadowPainter( + new FramePainter(mrSlideSorter.GetTheme()->GetIcon(Theme::Icon_RawInsertShadow))) +{ +} + +InsertionIndicatorOverlay::~InsertionIndicatorOverlay() +{ + // cid#1491947 silence Uncaught exception + suppress_fun_call_w_exception(Hide()); +} + +void InsertionIndicatorOverlay::Create (const SdTransferable* pTransferable) +{ + if (pTransferable == nullptr) + return; + + std::shared_ptr<controller::TransferableData> pData ( + controller::TransferableData::GetFromTransferable(pTransferable)); + if ( ! pData) + return; + sal_Int32 nSelectionCount (0); + if (pTransferable->HasPageBookmarks()) + nSelectionCount = pTransferable->GetPageBookmarks().size(); + else + { + DrawDocShell* pDataDocShell = dynamic_cast<DrawDocShell*>(pTransferable->GetDocShell().get()); + if (pDataDocShell != nullptr) + { + SdDrawDocument* pDataDocument = pDataDocShell->GetDoc(); + if (pDataDocument != nullptr) + nSelectionCount = pDataDocument->GetSdPageCount(PageKind::Standard); + } + } + Create(pData->GetRepresentatives(), nSelectionCount); +} + +void InsertionIndicatorOverlay::Create ( + const ::std::vector<controller::TransferableData::Representative>& rRepresentatives, + const sal_Int32 nSelectionCount) +{ + view::Layouter& rLayouter (mrSlideSorter.GetView().GetLayouter()); + const std::shared_ptr<view::PageObjectLayouter>& pPageObjectLayouter ( + rLayouter.GetPageObjectLayouter()); + std::shared_ptr<view::Theme> pTheme (mrSlideSorter.GetTheme()); + const Size aOriginalPreviewSize (pPageObjectLayouter->GetPreviewSize()); + + const double nPreviewScale (0.5); + const Size aPreviewSize ( + RoundToInt(aOriginalPreviewSize.Width()*nPreviewScale), + RoundToInt(aOriginalPreviewSize.Height()*nPreviewScale)); + const sal_Int32 nOffset ( + RoundToInt(std::min(aPreviewSize.Width(),aPreviewSize.Height()) * gnPreviewOffsetScale)); + + // Determine size and offset depending on the number of previews. + sal_Int32 nCount (rRepresentatives.size()); + if (nCount > 0) + --nCount; + Size aIconSize( + aPreviewSize.Width() + 2 * gnShadowBorder + nCount*nOffset, + aPreviewSize.Height() + 2 * gnShadowBorder + nCount*nOffset); + + // Create virtual devices for bitmap and mask whose bitmaps later be + // combined to form the BitmapEx of the icon. + ScopedVclPtrInstance<VirtualDevice> pContent( + *mrSlideSorter.GetContentWindow()->GetOutDev(), DeviceFormat::WITH_ALPHA); + pContent->SetOutputSizePixel(aIconSize); + + pContent->SetFillColor(); + pContent->SetLineColor(pTheme->GetColor(Theme::Color_PreviewBorder)); + const Point aOffset = PaintRepresentatives(*pContent, aPreviewSize, nOffset, rRepresentatives); + + PaintPageCount(*pContent, nSelectionCount, aPreviewSize, aOffset); + + maIcon = pContent->GetBitmapEx(Point(0,0), aIconSize); + maIcon.Scale(aIconSize); +} + +Point InsertionIndicatorOverlay::PaintRepresentatives ( + OutputDevice& rContent, + const Size& rPreviewSize, + const sal_Int32 nOffset, + const ::std::vector<controller::TransferableData::Representative>& rRepresentatives) const +{ + const Point aOffset (0,rRepresentatives.size()==1 ? -nOffset : 0); + + // Paint the pages. + Point aPageOffset (0,0); + double nTransparency (0); + const BitmapEx aExclusionOverlay (mrSlideSorter.GetTheme()->GetIcon(Theme::Icon_HideSlideOverlay)); + for (sal_Int32 nIndex=2; nIndex>=0; --nIndex) + { + if (rRepresentatives.size() <= o3tl::make_unsigned(nIndex)) + continue; + switch(nIndex) + { + case 0 : + aPageOffset = Point(0, nOffset); + nTransparency = 0.85; + break; + case 1: + aPageOffset = Point(nOffset, 0); + nTransparency = 0.75; + break; + case 2: + aPageOffset = Point(2*nOffset, 2*nOffset); + nTransparency = 0.65; + break; + } + aPageOffset += aOffset; + aPageOffset.AdjustX(gnShadowBorder ); + aPageOffset.AdjustY(gnShadowBorder ); + + // Paint the preview. + BitmapEx aPreview (rRepresentatives[nIndex].maBitmap); + aPreview.Scale(rPreviewSize, BmpScaleFlag::BestQuality); + rContent.DrawBitmapEx(aPageOffset, aPreview); + + // When the page is marked as excluded from the slide show then + // paint an overlay that visualizes this. + if (rRepresentatives[nIndex].mbIsExcluded) + { + const vcl::Region aSavedClipRegion (rContent.GetClipRegion()); + rContent.IntersectClipRegion(::tools::Rectangle(aPageOffset, rPreviewSize)); + // Paint bitmap tiled over the preview to mark it as excluded. + const sal_Int32 nIconWidth (aExclusionOverlay.GetSizePixel().Width()); + const sal_Int32 nIconHeight (aExclusionOverlay.GetSizePixel().Height()); + if (nIconWidth>0 && nIconHeight>0) + { + for (::tools::Long nX=0; nX<rPreviewSize.Width(); nX+=nIconWidth) + for (::tools::Long nY=0; nY<rPreviewSize.Height(); nY+=nIconHeight) + rContent.DrawBitmapEx(Point(nX,nY)+aPageOffset, aExclusionOverlay); + } + rContent.SetClipRegion(aSavedClipRegion); + } + + // Tone down the bitmap. The further back the darker it becomes. + ::tools::Rectangle aBox ( + aPageOffset.X(), + aPageOffset.Y(), + aPageOffset.X()+rPreviewSize.Width()-1, + aPageOffset.Y()+rPreviewSize.Height()-1); + rContent.SetFillColor(COL_BLACK); + rContent.SetLineColor(); + rContent.DrawTransparent( + basegfx::B2DHomMatrix(), + ::basegfx::B2DPolyPolygon(::basegfx::utils::createPolygonFromRect( + ::basegfx::B2DRectangle(aBox.Left(), aBox.Top(), aBox.Right()+1, aBox.Bottom()+1), + 0, + 0)), + nTransparency); + + // Draw border around preview. + ::tools::Rectangle aBorderBox (GrowRectangle(aBox, 1)); + rContent.SetLineColor(COL_GRAY); + rContent.SetFillColor(); + rContent.DrawRect(aBorderBox); + + // Draw shadow around preview. + mpShadowPainter->PaintFrame(rContent, aBorderBox); + } + + return aPageOffset; +} + +void InsertionIndicatorOverlay::PaintPageCount ( + OutputDevice& rDevice, + const sal_Int32 nSelectionCount, + const Size& rPreviewSize, + const Point& rFirstPageOffset) const +{ + // Paint the number of slides. + std::shared_ptr<view::Theme> pTheme (mrSlideSorter.GetTheme()); + std::shared_ptr<vcl::Font> pFont(Theme::GetFont(Theme::Font_PageCount, rDevice)); + if (!pFont) + return; + + OUString sNumber (OUString::number(nSelectionCount)); + + // Determine the size of the (painted) text and create a bounding + // box that centers the text on the first preview. + rDevice.SetFont(*pFont); + ::tools::Rectangle aTextBox; + rDevice.GetTextBoundRect(aTextBox, sNumber); + Point aTextOffset (aTextBox.TopLeft()); + Size aTextSize (aTextBox.GetSize()); + // Place text inside the first page preview. + Point aTextLocation(rFirstPageOffset); + // Center the text. + aTextLocation += Point( + (rPreviewSize.Width()-aTextBox.GetWidth())/2, + (rPreviewSize.Height()-aTextBox.GetHeight())/2); + aTextBox = ::tools::Rectangle(aTextLocation, aTextSize); + + // Paint background, border and text. + static const sal_Int32 nBorder = 5; + rDevice.SetFillColor(pTheme->GetColor(Theme::Color_Selection)); + rDevice.SetLineColor(pTheme->GetColor(Theme::Color_Selection)); + rDevice.DrawRect(GrowRectangle(aTextBox, nBorder)); + + rDevice.SetFillColor(); + rDevice.SetLineColor(pTheme->GetColor(Theme::Color_PageCountFontColor)); + rDevice.DrawRect(GrowRectangle(aTextBox, nBorder-1)); + + rDevice.SetTextColor(pTheme->GetColor(Theme::Color_PageCountFontColor)); + rDevice.DrawText(aTextBox.TopLeft()-aTextOffset, sNumber); +} + +void InsertionIndicatorOverlay::SetLocation (const Point& rLocation) +{ + const Point aTopLeft ( + rLocation - Point( + maIcon.GetSizePixel().Width()/2, + maIcon.GetSizePixel().Height()/2)); + if (maLocation != aTopLeft) + { + const ::tools::Rectangle aOldBoundingBox (GetBoundingBox()); + + maLocation = aTopLeft; + + if (mpLayerInvalidator && IsVisible()) + { + mpLayerInvalidator->Invalidate(aOldBoundingBox); + mpLayerInvalidator->Invalidate(GetBoundingBox()); + } + } +} + +void InsertionIndicatorOverlay::Paint ( + OutputDevice& rDevice, + const ::tools::Rectangle&) +{ + if ( ! IsVisible()) + return; + + rDevice.DrawImage(maLocation, Image(maIcon)); +} + +void InsertionIndicatorOverlay::SetLayerInvalidator (const SharedILayerInvalidator& rpInvalidator) +{ + mpLayerInvalidator = rpInvalidator; + + if (mbIsVisible && mpLayerInvalidator) + mpLayerInvalidator->Invalidate(GetBoundingBox()); +} + +void InsertionIndicatorOverlay::Show() +{ + if ( mbIsVisible) + return; + + mbIsVisible = true; + + std::shared_ptr<LayeredDevice> pLayeredDevice ( + mrSlideSorter.GetView().GetLayeredDevice()); + if (pLayeredDevice) + { + pLayeredDevice->RegisterPainter(shared_from_this(), gnLayerIndex); + if (mpLayerInvalidator) + mpLayerInvalidator->Invalidate(GetBoundingBox()); + } +} + +void InsertionIndicatorOverlay::Hide() +{ + if (!mbIsVisible) + return; + + mbIsVisible = false; + + std::shared_ptr<LayeredDevice> pLayeredDevice ( + mrSlideSorter.GetView().GetLayeredDevice()); + if (pLayeredDevice) + { + if (mpLayerInvalidator) + mpLayerInvalidator->Invalidate(GetBoundingBox()); + pLayeredDevice->RemovePainter(shared_from_this(), gnLayerIndex); + } +} + +::tools::Rectangle InsertionIndicatorOverlay::GetBoundingBox() const +{ + return ::tools::Rectangle(maLocation, maIcon.GetSizePixel()); +} + +Size InsertionIndicatorOverlay::GetSize() const +{ + return Size( + maIcon.GetSizePixel().Width() + 10, + maIcon.GetSizePixel().Height() + 10); +} + +} // end of namespace ::sd::slidesorter::view + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |