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
  31 namespace sdr
  32 {
  33     namespace animation
  34     {
  35         double PrimitiveAnimation::getSmallestNextTime(double fCurrentTime)
  36         {
  37             double fRetval(0.0);
  38
  39             if(maAnimatedPrimitives.hasElements())
  40             {
  41                 const sal_Int32 nCount(maAnimatedPrimitives.getLength());
  42
  43                 for(sal_Int32 a(0L); a < nCount; a++)
  44                 {
  45                     const drawinglayer::primitive2d::Primitive2DReference xRef(maAnimatedPrimitives[a]);
  46                     const drawinglayer::primitive2d::AnimatedSwitchPrimitive2D* pCandidate = dynamic_cast< const drawinglayer::primitive2d::AnimatedSwitchPrimitive2D* >(xRef.get());
  47                     OSL_ENSURE(pCandidate, "PrimitiveAnimation::getSmallestNextTime: wrong primitive in animated list (!)");
  48
  49                     if(pCandidate)
  50                     {
  51                         const drawinglayer::animation::AnimationEntry& rAnimEntry = pCandidate->getAnimationEntry();
  52                         const double fNextTime(rAnimEntry.getNextEventTime(fCurrentTime));
  53
  54                         if(!::basegfx::fTools::equalZero(fNextTime))
  55                         {
  56                             if(::basegfx::fTools::equalZero(fRetval))
  57                             {
  58                                 fRetval = fNextTime;
  59                             }
  60                             else if(::basegfx::fTools::less(fNextTime, fRetval))
  61                             {
  62                                 fRetval = fNextTime;
  63                             }
  64                         }
  65                     }
  66                 }
  67             }
  68
  69             return fRetval;
  70         }
  71
  72         void PrimitiveAnimation::prepareNextEvent()
  73         {
  74             const double fCurrentTime(mrVOContact.GetObjectContact().getPrimitiveAnimator().GetTime());
  75             const double fNextTime(getSmallestNextTime(fCurrentTime));
  76
  77             // getSmallestNextTime will be zero when animation ended. If not zero, a next step
  78             // exists
  79             if(!::basegfx::fTools::equalZero(fNextTime))
  80             {
  81                 // next time point exists, use it
  82                 sal_uInt32 nNextTime;
  83
  84                 if(fNextTime >= (double)0xffffff00)
  85                 {
  86                     // take care for very late points in time, e.g. when a text animation stops
  87                     // in a defined AnimationEntryFixed with endless (0xffffffff) duration
  88                     nNextTime = GetTime() + (1000 * 60 * 60); // one hour, works with vcl timers, 0xffffff00 was too much...
  89                 }
  90                 else
  91                 {
  92                     nNextTime = (sal_uInt32)fNextTime;
  93                 }
  94
  95                 // ensure step forward in integer timing, the floating step difference maybe smaller than 1.0. Use
  96                 // at least 25ms for next step
  97                 const sal_uInt32 nMinimumStepTime((sal_uInt32)fCurrentTime + 25L);
  98
  99                 if(nNextTime <= nMinimumStepTime)
 100                 {
 101                     nNextTime = nMinimumStepTime;
 102                 }
 103
 104                 // set time and reactivate by re-adding to the scheduler
 105                 SetTime(nNextTime);
 106                 mrVOContact.GetObjectContact().getPrimitiveAnimator().InsertEvent(this);
 107             }
 108         }
 109
 110         PrimitiveAnimation::PrimitiveAnimation(sdr::contact::ViewObjectContact& rVOContact, const drawinglayer::primitive2d::Primitive2DSequence& rAnimatedPrimitives)
 111         :   Event(0L),
 112             mrVOContact(rVOContact),
 113             maAnimatedPrimitives(rAnimatedPrimitives)
 114         {
 115             if (!comphelper::LibreOfficeKit::isActive())
 116                 // setup initially
 117                 prepareNextEvent();
 118         }
 119
 120         PrimitiveAnimation::~PrimitiveAnimation()
 121         {
 122             // ensure that Event member is removed from PrimitiveAnimator
 123             mrVOContact.GetObjectContact().getPrimitiveAnimator().RemoveEvent(this);
 124         }
 125
 126         // execute event, from base class Event
 127         void PrimitiveAnimation::Trigger(sal_uInt32 /*nTime*/)
 128         {
 129             // schedule a repaint of associated object
 130             mrVOContact.ActionChanged();
 131
 132             if (!comphelper::LibreOfficeKit::isActive())
 133                 // re-setup
 134                 prepareNextEvent();
 135         }
 136     } // end of namespace animation
 137 } // end of namespace sdr
 138
 139 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */