sd/source/ui/slidesorter/view/SlsViewCacheContext.cxx

   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 #include "SlsViewCacheContext.hxx"
  21
  22 #include <SlideSorter.hxx>
  23 #include <model/SlideSorterModel.hxx>
  24 #include <model/SlsPageDescriptor.hxx>
  25 #include <model/SlsPageEnumerationProvider.hxx>
  26 #include <view/SlideSorterView.hxx>
  27 #include <sdpage.hxx>
  28 #include <Window.hxx>
  29 #include <drawdoc.hxx>
  30 #include <tools/IdleDetection.hxx>
  31 #include <svx/svdpage.hxx>
  32
  33 namespace sd::slidesorter::view {
  34
  35 ViewCacheContext::ViewCacheContext (SlideSorter& rSlideSorter)
  36     : mrModel(rSlideSorter.GetModel()),
  37       mrSlideSorter(rSlideSorter)
  38 {
  39 }
  40
  41 ViewCacheContext::~ViewCacheContext()
  42 {
  43 }
  44
  45 void ViewCacheContext::NotifyPreviewCreation(cache::CacheKey aKey)
  46 {
  47     const model::SharedPageDescriptor pDescriptor (GetDescriptor(aKey));
  48     if (pDescriptor)
  49     {
  50         // Force a repaint that will trigger their re-creation.
  51         mrSlideSorter.GetView().RequestRepaint(pDescriptor);
  52     }
  53     else
  54     {
  55         // It is OK when a preview was created for a page that is not
  56         // currently displayed because both normal and master pages are
  57         // kept in the same cache.
  58     }
  59 }
  60
  61 bool ViewCacheContext::IsIdle()
  62 {
  63     tools::IdleState nIdleState (tools::IdleDetection::GetIdleState(mrSlideSorter.GetContentWindow()));
  64     return nIdleState == tools::IdleState::Idle;
  65 }
  66
  67 bool ViewCacheContext::IsVisible (cache::CacheKey aKey)
  68 {
  69     const model::SharedPageDescriptor pDescriptor (GetDescriptor(aKey));
  70     return pDescriptor && pDescriptor->HasState(model::PageDescriptor::ST_Visible);
  71 }
  72
  73 const SdrPage* ViewCacheContext::GetPage (cache::CacheKey aKey)
  74 {
  75     return aKey;
  76 }
  77
  78 std::shared_ptr<std::vector<cache::CacheKey> > ViewCacheContext::GetEntryList (bool bVisible)
  79 {
  80     auto pKeys = std::make_shared<std::vector<cache::CacheKey>>();
  81
  82     model::PageEnumeration aPageEnumeration (
  83         bVisible
  84             ? model::PageEnumerationProvider::CreateVisiblePagesEnumeration(mrModel)
  85             : model::PageEnumerationProvider::CreateAllPagesEnumeration(mrModel));
  86
  87     while (aPageEnumeration.HasMoreElements())
  88     {
  89         model::SharedPageDescriptor pDescriptor (aPageEnumeration.GetNextElement());
  90         pKeys->push_back(pDescriptor->GetPage());
  91     }
  92
  93     return pKeys;
  94 }
  95
  96 sal_Int32 ViewCacheContext::GetPriority (cache::CacheKey aKey)
  97 {
  98     return - (aKey->GetPageNum()-1) / 2;
  99 }
 100
 101 model::SharedPageDescriptor ViewCacheContext::GetDescriptor (cache::CacheKey aKey)
 102 {
 103     sal_uInt16 nPageIndex ((aKey->GetPageNum() - 1) / 2);
 104     return mrModel.GetPageDescriptor(nPageIndex);
 105 }
 106
 107 SdXImpressDocument* ViewCacheContext::GetModel()
 108 {
 109     if (mrModel.GetDocument() == nullptr)
 110         return nullptr;
 111     else
 112         return mrModel.GetDocument()->getUnoModel();
 113 }
 114
 115 } // end of namespace ::sd::slidesorter::view
 116
 117 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */