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.
   4  *
   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 #pragma once
  21
  22 #include <view/SlsILayerPainter.hxx>
  23 #include <controller/SlsTransferableData.hxx>
  24
  25 #include <tools/gen.hxx>
  26 #include <vcl/bitmapex.hxx>
  27 #include <memory>
  28 #include <vector>
  29
  30 class OutputDevice;
  31 class SdTransferable;
  32
  33 namespace sd::slidesorter { class SlideSorter; }
  34
  35 namespace sd::slidesorter::view {
  36
  37 class FramePainter;
  38
  39 /** The insertion indicator is painted as a vertical or horizontal bar
  40     in the space between slides.
  41 */
  42 class InsertionIndicatorOverlay final
  43     : public ILayerPainter,
  44       public std::enable_shared_from_this<InsertionIndicatorOverlay>
  45 {
  46 public:
  47     InsertionIndicatorOverlay (SlideSorter& rSlideSorter);
  48     virtual ~InsertionIndicatorOverlay() override;
  49
  50     virtual void SetLayerInvalidator (const SharedILayerInvalidator& rpInvalidator) override;
  51
  52     void Create (const SdTransferable* pTransferable);
  53
  54     /** Given a position in model coordinates this method calculates the
  55         insertion marker both as an index in the document and as a location
  56         used for drawing the insertion indicator.
  57     */
  58     void SetLocation (const Point& rPosition);
  59
  60     Size GetSize() const;
  61
  62     virtual void Paint (
  63         OutputDevice& rDevice,
  64         const ::tools::Rectangle& rRepaintArea) override;
  65
  66     bool IsVisible() const { return mbIsVisible;}
  67     void Hide();
  68     void Show();
  69
  70     ::tools::Rectangle GetBoundingBox() const;
  71
  72 private:
  73     SlideSorter& mrSlideSorter;
  74     bool mbIsVisible;
  75     SharedILayerInvalidator mpLayerInvalidator;
  76     // Center of the insertion indicator.
  77     Point maLocation;
  78     BitmapEx maIcon;
  79     std::unique_ptr<FramePainter> mpShadowPainter;
  80
  81     Point PaintRepresentatives (
  82         OutputDevice& rContent,
  83         const Size& rPreviewSize,
  84         const sal_Int32 nOffset,
  85         const ::std::vector<controller::TransferableData::Representative>& rPages) const;
  86     void PaintPageCount (
  87         OutputDevice& rDevice,
  88         const sal_Int32 nSelectionCount,
  89         const Size& rPreviewSize,
  90         const Point& rFirstPageOffset) const;
  91     /** Setup the insertion indicator by creating the icon.  It consists of
  92         scaled down previews of some of the selected pages.
  93     */
  94     void Create (
  95         const ::std::vector<controller::TransferableData::Representative>& rPages,
  96         const sal_Int32 nSelectionCount);
  97 };
  98
  99 } // end of namespace ::sd::slidesorter::view
 100
 101 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */