sd/source/ui/slidesorter/inc/view/SlsInsertionIndicatorOverlay.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_SD_SOURCE_UI_SLIDESORTER_INC_VIEW_SLSINSERTIONINDICATOROVERLAY_HXX
  21 #define INCLUDED_SD_SOURCE_UI_SLIDESORTER_INC_VIEW_SLSINSERTIONINDICATOROVERLAY_HXX
  22
  23 #include <view/SlsILayerPainter.hxx>
  24 #include <controller/SlsTransferableData.hxx>
  25
  26 #include <tools/gen.hxx>
  27 #include <vcl/bitmapex.hxx>
  28 #include <memory>
  29 #include <vector>
  30
  31 class OutputDevice;
  32 class SdTransferable;
  33
  34 namespace sd { namespace slidesorter {
  35 class SlideSorter;
  36 } }
  37
  38 namespace sd { namespace slidesorter { namespace view {
  39
  40 class FramePainter;
  41
  42 /** The insertion indicator is painted as a vertical or horizontal bar
  43     in the space between slides.
  44 */
  45 class InsertionIndicatorOverlay
  46     : public ILayerPainter,
  47       public std::enable_shared_from_this<InsertionIndicatorOverlay>
  48 {
  49 public:
  50     InsertionIndicatorOverlay (SlideSorter& rSlideSorter);
  51     virtual ~InsertionIndicatorOverlay() COVERITY_NOEXCEPT_FALSE override;
  52
  53     virtual void SetLayerInvalidator (const SharedILayerInvalidator& rpInvalidator) override;
  54
  55     void Create (const SdTransferable* pTransferable);
  56
  57     /** Given a position in model coordinates this method calculates the
  58         insertion marker both as an index in the document and as a location
  59         used for drawing the insertion indicator.
  60     */
  61     void SetLocation (const Point& rPosition);
  62
  63     Size GetSize() const;
  64
  65     virtual void Paint (
  66         OutputDevice& rDevice,
  67         const ::tools::Rectangle& rRepaintArea) override;
  68
  69     bool IsVisible() const { return mbIsVisible;}
  70     void Hide();
  71     void Show();
  72
  73     ::tools::Rectangle GetBoundingBox() const;
  74
  75 private:
  76     SlideSorter& mrSlideSorter;
  77     bool mbIsVisible;
  78     SharedILayerInvalidator mpLayerInvalidator;
  79     // Center of the insertion indicator.
  80     Point maLocation;
  81     BitmapEx maIcon;
  82     std::unique_ptr<FramePainter> mpShadowPainter;
  83
  84     Point PaintRepresentatives (
  85         OutputDevice& rContent,
  86         const Size& rPreviewSize,
  87         const sal_Int32 nOffset,
  88         const ::std::vector<controller::TransferableData::Representative>& rPages) const;
  89     void PaintPageCount (
  90         OutputDevice& rDevice,
  91         const sal_Int32 nSelectionCount,
  92         const Size& rPreviewSize,
  93         const Point& rFirstPageOffset) const;
  94     /** Setup the insertion indicator by creating the icon.  It consists of
  95         scaled down previews of some of the selected pages.
  96     */
  97     void Create (
  98         const ::std::vector<controller::TransferableData::Representative>& rPages,
  99         const sal_Int32 nSelectionCount);
 100 };
 101
 102 } } } // end of namespace ::sd::slidesorter::view
 103
 104 #endif
 105
 106 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */