svx/source/sdr/animation/animationstate.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 <svx/sdr/animation/animationstate.hxx>
  21 #include <svx/sdr/contact/viewobjectcontact.hxx>
  22 #include <svx/sdr/animation/objectanimator.hxx>
  23 #include <svx/sdr/contact/objectcontact.hxx>
  24 #include <svx/sdr/contact/viewcontact.hxx>
  25 #include <drawinglayer/primitive2d/animatedprimitive2d.hxx>
  26 #include <drawinglayer/animation/animationtiming.hxx>
  27 #include <comphelper/lok.hxx>
  28
  29
  30 namespace sdr
  31 {
  32     namespace animation
  33     {
  34         double PrimitiveAnimation::getSmallestNextTime(double fCurrentTime)
  35         {
  36             double fRetval(0.0);
  37
  38             if(!maAnimatedPrimitives.empty())
  39             {
  40                 const sal_Int32 nCount(maAnimatedPrimitives.size());
  41
  42                 for(sal_Int32 a(0); a < nCount; a++)
  43                 {
  44                     const drawinglayer::primitive2d::Primitive2DReference xRef(maAnimatedPrimitives[a]);
  45                     const drawinglayer::primitive2d::AnimatedSwitchPrimitive2D* pCandidate = dynamic_cast< const drawinglayer::primitive2d::AnimatedSwitchPrimitive2D* >(xRef.get());
  46                     OSL_ENSURE(pCandidate, "PrimitiveAnimation::getSmallestNextTime: wrong primitive in animated list (!)");
  47
  48                     if(pCandidate)
  49                     {
  50                         const drawinglayer::animation::AnimationEntry& rAnimEntry = pCandidate->getAnimationEntry();
  51                         const double fNextTime(rAnimEntry.getNextEventTime(fCurrentTime));
  52
  53                         if(!::basegfx::fTools::equalZero(fNextTime))
  54                         {
  55                             if(::basegfx::fTools::equalZero(fRetval))
  56                             {
  57                                 fRetval = fNextTime;
  58                             }
  59                             else if(::basegfx::fTools::less(fNextTime, fRetval))
  60                             {
  61                                 fRetval = fNextTime;
  62                             }
  63                         }
  64                     }
  65                 }
  66             }
  67
  68             return fRetval;
  69         }
  70
  71         void PrimitiveAnimation::prepareNextEvent()
  72         {
  73             const double fCurrentTime(mrVOContact.GetObjectContact().getPrimitiveAnimator().GetTime());
  74             const double fNextTime(getSmallestNextTime(fCurrentTime));
  75
  76             // getSmallestNextTime will be zero when animation ended. If not zero, a next step
  77             // exists
  78             if(!::basegfx::fTools::equalZero(fNextTime))
  79             {
  80                 // next time point exists, use it
  81                 sal_uInt32 nNextTime;
  82
  83                 if(fNextTime >= double(0xffffff00))
  84                 {
  85                     // take care for very late points in time, e.g. when a text animation stops
  86                     // in a defined AnimationEntryFixed with endless (0xffffffff) duration
  87                     nNextTime = GetTime() + (1000 * 60 * 60); // one hour, works with vcl timers, 0xffffff00 was too much...
  88                 }
  89                 else
  90                 {
  91                     nNextTime = static_cast<sal_uInt32>(fNextTime);
  92                 }
  93
  94                 // ensure step forward in integer timing, the floating step difference maybe smaller than 1.0. Use
  95                 // at least 25ms for next step
  96                 const sal_uInt32 nMinimumStepTime(static_cast<sal_uInt32>(fCurrentTime) + 25);
  97
  98                 if(nNextTime <= nMinimumStepTime)
  99                 {
 100                     nNextTime = nMinimumStepTime;
 101                 }
 102
 103                 // set time and reactivate by re-adding to the scheduler
 104                 SetTime(nNextTime);
 105                 mrVOContact.GetObjectContact().getPrimitiveAnimator().InsertEvent(*this);
 106             }
 107         }
 108
 109         PrimitiveAnimation::PrimitiveAnimation(sdr::contact::ViewObjectContact& rVOContact, const drawinglayer::primitive2d::Primitive2DContainer& rAnimatedPrimitives)
 110         :   Event(),
 111             mrVOContact(rVOContact),
 112             maAnimatedPrimitives(rAnimatedPrimitives)
 113         {
 114             if (!comphelper::LibreOfficeKit::isActive())
 115                 // setup initially
 116                 prepareNextEvent();
 117         }
 118
 119         PrimitiveAnimation::~PrimitiveAnimation()
 120         {
 121             // ensure that Event member is removed from PrimitiveAnimator
 122             mrVOContact.GetObjectContact().getPrimitiveAnimator().RemoveEvent(this);
 123         }
 124
 125         // execute event, from base class Event
 126         void PrimitiveAnimation::Trigger(sal_uInt32 /*nTime*/)
 127         {
 128             // schedule a repaint of associated object
 129             mrVOContact.ActionChanged();
 130
 131             if (!comphelper::LibreOfficeKit::isActive())
 132                 // re-setup
 133                 prepareNextEvent();
 134         }
 135     } // end of namespace animation
 136 } // end of namespace sdr
 137
 138 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */