/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <view/SlsInsertAnimator.hxx>
#include <controller/SlideSorterController.hxx>
#include <controller/SlsAnimationFunction.hxx>
#include <view/SlideSorterView.hxx>
#include <view/SlsLayouter.hxx>
#include <model/SlideSorterModel.hxx>
#include <SlideSorter.hxx>
#include <Window.hxx>
#include <osl/diagnose.h>
#include <memory>
#include <set>
namespace sd::slidesorter::view {
namespace {
class PageObjectRun;
class AnimatorAccess
{
public:
virtual void AddRun (
const std::shared_ptr<PageObjectRun>& rRun) = 0;
virtual void RemoveRun (
const std::shared_ptr<PageObjectRun>& rRun) = 0;
virtual model::SlideSorterModel& GetModel ()
const = 0;
virtual view::SlideSorterView& GetView ()
const = 0;
virtual std::shared_ptr<controller::Animator> GetAnimator () = 0;
virtual VclPtr<sd::Window> GetContentWindow () = 0;
protected:
~AnimatorAccess() COVERITY_NOEXCEPT_FALSE {}
};
/** Controller of the position offsets of all page objects in one row or one
column.
*/
class PageObjectRun :
public std::enable_shared_from_this<PageObjectRun>
{
public:
PageObjectRun (
AnimatorAccess& rAnimatorAccess,
const sal_Int32 nRunIndex,
const sal_Int32 nStartIndex,
const sal_Int32 nEndIndex);
void operator () (
const double nTime);
void UpdateOffsets(
const InsertPosition& rInsertPosition,
const view::Layouter& GetLayouter);
void ResetOffsets (
const controller::Animator::AnimationMode eMode);
/// Index of the row or column that this run represents.
sal_Int32 mnRunIndex;
/// The index at which to make place for the insertion indicator (-1 for
/// no indicator).
sal_Int32 mnLocalInsertIndex;
/// Index of the first page in the run.
sal_Int32 mnStartIndex;
/// Index of the last page in the run.
sal_Int32 mnEndIndex;
/// Offset of each item in the run at the start of the current animation.
::std::vector<Point> maStartOffset;
/// Target offset of each item in the run at the end of the current animation.
::std::vector<Point> maEndOffset;
/// Time at which the current animation started.
double mnStartTime;
class Comparator
{
public:
bool operator() (
const std::shared_ptr<PageObjectRun>& rpRunA,
const std::shared_ptr<PageObjectRun>& rpRunB)
const
{
return rpRunA->mnRunIndex < rpRunB->mnRunIndex;
}
};
private:
controller::Animator::AnimationId mnAnimationId;
AnimatorAccess& mrAnimatorAccess;
::std::function<
double (
double)> maAccelerationFunction;
void RestartAnimation();
};
typedef std::shared_ptr<PageObjectRun> SharedPageObjectRun;
Point Blend (
const Point& rPointA,
const Point& rPointB,
const double nT)
{
return Point(
sal_Int32(rPointA.X() * (1-nT) + rPointB.X() * nT),
sal_Int32(rPointA.Y() * (1-nT) + rPointB.Y() * nT));
}
}
// end of anonymous namespace
class InsertAnimator::Implementation :
public AnimatorAccess
{
public:
explicit Implementation (SlideSorter& rSlideSorter);
virtual ~Implementation();
void SetInsertPosition (
const InsertPosition& rInsertPosition,
const controller::Animator::AnimationMode eAnimationMode);
virtual void AddRun (
const std::shared_ptr<PageObjectRun>& rRun) override;
virtual void RemoveRun (
const std::shared_ptr<PageObjectRun>& rRun) override;
virtual model::SlideSorterModel& GetModel()
const override {
return mrModel; }
virtual view::SlideSorterView& GetView()
const override {
return mrView; }
virtual std::shared_ptr<controller::Animator> GetAnimator() override {
return mpAnimator
; }
virtual VclPtr<sd::Window> GetContentWindow() override { return mrSlideSorter.GetContentWindow(); }
private:
model::SlideSorterModel& mrModel;
view::SlideSorterView& mrView;
SlideSorter& mrSlideSorter;
std::shared_ptr<controller::Animator> mpAnimator;
typedef ::std::set<SharedPageObjectRun, PageObjectRun::Comparator> RunContainer;
RunContainer maRuns;
InsertPosition maInsertPosition;
SharedPageObjectRun GetRun (
view::Layouter const & rLayouter,
const InsertPosition& rInsertPosition);
RunContainer::const_iterator FindRun (const sal_Int32 nRunIndex) const;
};
//===== InsertAnimator ========================================================
InsertAnimator::InsertAnimator (SlideSorter& rSlideSorter)
: mpImplementation(std::make_shared<Implementation>(rSlideSorter))
{
}
void InsertAnimator::SetInsertPosition (const InsertPosition& rInsertPosition)
{
mpImplementation->SetInsertPosition(rInsertPosition, controller::Animator::AM_Animated);
}
void InsertAnimator::Reset (const controller::Animator::AnimationMode eMode)
{
mpImplementation->SetInsertPosition(InsertPosition(), eMode);
}
//===== InsertAnimator::Implementation ========================================
InsertAnimator::Implementation::Implementation (SlideSorter& rSlideSorter)
: mrModel(rSlideSorter.GetModel()),
mrView(rSlideSorter.GetView()),
mrSlideSorter(rSlideSorter),
mpAnimator(rSlideSorter.GetController().GetAnimator())
{
}
InsertAnimator::Implementation::~Implementation()
{
SetInsertPosition(InsertPosition(), controller::Animator::AM_Immediate);
}
void InsertAnimator::Implementation::SetInsertPosition (
const InsertPosition& rInsertPosition,
const controller::Animator::AnimationMode eMode)
{
if (maInsertPosition == rInsertPosition)
return;
SharedPageObjectRun pOldRun (GetRun(mrView.GetLayouter(), maInsertPosition));
SharedPageObjectRun pCurrentRun (GetRun(mrView.GetLayouter(), rInsertPosition));
maInsertPosition = rInsertPosition;
// When the new insert position is in a different run then move the page
// objects in the old run to their default positions.
if (pOldRun != pCurrentRun && pOldRun)
pOldRun->ResetOffsets(eMode);
if (pCurrentRun)
{
pCurrentRun->UpdateOffsets(rInsertPosition, mrView.GetLayouter());
}
}
SharedPageObjectRun InsertAnimator::Implementation::GetRun (
view::Layouter const & rLayouter,
const InsertPosition& rInsertPosition)
{
const sal_Int32 nRow (rInsertPosition.GetRow());
if (nRow < 0)
return SharedPageObjectRun();
RunContainer::const_iterator iRun (maRuns.end());
if (rLayouter.GetColumnCount() == 1)
{
// There is only one run that contains all slides.
if (maRuns.empty())
maRuns.insert(std::make_shared<PageObjectRun>(
*this,
0,
0,
mrModel.GetPageCount()-1));
iRun = maRuns.begin();
}
else
{
iRun = FindRun(nRow);
if (iRun == maRuns.end())
{
// Create a new run.
const sal_Int32 nStartIndex (rLayouter.GetIndex(nRow, 0));
const sal_Int32 nEndIndex (rLayouter.GetIndex(nRow, rLayouter.GetColumnCount()-1));
if (nStartIndex <= nEndIndex)
{
iRun = maRuns.insert(std::make_shared<PageObjectRun>(
*this,
nRow,
nStartIndex,
nEndIndex)).first;
OSL_ASSERT(iRun != maRuns.end());
}
}
}
if (iRun != maRuns.end())
return *iRun;
else
return SharedPageObjectRun();
}
InsertAnimator::Implementation::RunContainer::const_iterator
InsertAnimator::Implementation::FindRun (const sal_Int32 nRunIndex) const
{
return std::find_if(
maRuns.begin(),
maRuns.end(),
[nRunIndex] (std::shared_ptr<PageObjectRun> const& rRun)
{ return rRun->mnRunIndex == nRunIndex; });
}
void InsertAnimator::Implementation::AddRun (const std::shared_ptr<PageObjectRun>& rRun)
{
if (rRun)
{
maRuns.insert(rRun);
}
else
{
OSL_ASSERT(rRun);
}
}
void InsertAnimator::Implementation::RemoveRun (const std::shared_ptr<PageObjectRun>& rRun)
{
if (rRun)
{
// Do not remove runs that show the space for the insertion indicator.
if (rRun->mnLocalInsertIndex == -1)
{
InsertAnimator::Implementation::RunContainer::const_iterator iRun (FindRun(rRun->mnRunIndex));
if (iRun != maRuns.end())
{
OSL_ASSERT(*iRun == rRun);
maRuns.erase(iRun);
}
}
}
else
{
OSL_ASSERT(rRun);
}
}
//===== PageObjectRun =========================================================
PageObjectRun::PageObjectRun (
AnimatorAccess& rAnimatorAccess,
const sal_Int32 nRunIndex,
const sal_Int32 nStartIndex,
const sal_Int32 nEndIndex)
: mnRunIndex(nRunIndex),
mnLocalInsertIndex(-1),
mnStartIndex(nStartIndex),
mnEndIndex(nEndIndex),
mnStartTime(-1),
mnAnimationId(controller::Animator::NotAnAnimationId),
mrAnimatorAccess(rAnimatorAccess),
maAccelerationFunction(
controller::AnimationParametricFunction(
controller::AnimationBezierFunction (0.1,0.7)))
{
maStartOffset.resize(nEndIndex - nStartIndex + 1);
maEndOffset.resize(nEndIndex - nStartIndex + 1);
}
void PageObjectRun::UpdateOffsets(
const InsertPosition& rInsertPosition,
const view::Layouter& rLayouter)
{
const bool bIsVertical (rLayouter.GetColumnCount()==1);
const sal_Int32 nLocalInsertIndex(bIsVertical
? rInsertPosition.GetRow()
: rInsertPosition.GetColumn());
if (nLocalInsertIndex == mnLocalInsertIndex)
return;
mnLocalInsertIndex = nLocalInsertIndex;
model::SlideSorterModel& rModel (mrAnimatorAccess.GetModel());
const sal_Int32 nRunLength (mnEndIndex - mnStartIndex + 1);
for (sal_Int32 nIndex=0; nIndex<nRunLength; ++nIndex)
{
model::SharedPageDescriptor pDescriptor(rModel.GetPageDescriptor(nIndex+mnStartIndex));
if (pDescriptor)
maStartOffset[nIndex] = pDescriptor->GetVisualState().GetLocationOffset();
maEndOffset[nIndex] = nIndex < mnLocalInsertIndex
? rInsertPosition.GetLeadingOffset()
: rInsertPosition.GetTrailingOffset();
if (bIsVertical)
maEndOffset[nIndex].setX( 0 );
else
maEndOffset[nIndex].setY( 0 );
}
RestartAnimation();
}
void PageObjectRun::ResetOffsets (const controller::Animator::AnimationMode eMode)
{
mnLocalInsertIndex = -1;
const sal_Int32 nRunLength (mnEndIndex - mnStartIndex + 1);
model::SlideSorterModel& rModel (mrAnimatorAccess.GetModel());
view::SlideSorterView& rView (mrAnimatorAccess.GetView());
for (sal_Int32 nIndex=0; nIndex<nRunLength; ++nIndex)
{
model::SharedPageDescriptor pDescriptor(rModel.GetPageDescriptor(nIndex+mnStartIndex));
if (pDescriptor)
{
if (eMode == controller::Animator::AM_Animated)
maStartOffset[nIndex] = pDescriptor->GetVisualState().GetLocationOffset();
else
{
const ::tools::Rectangle aOldBoundingBox (pDescriptor->GetBoundingBox());
pDescriptor->GetVisualState().SetLocationOffset(Point(0,0));
rView.RequestRepaint(aOldBoundingBox);
rView.RequestRepaint(pDescriptor);
}
}
maEndOffset[nIndex] = Point(0,0);
}
if (eMode == controller::Animator::AM_Animated)
RestartAnimation();
else
mrAnimatorAccess.RemoveRun(shared_from_this());
}
void PageObjectRun::RestartAnimation()
{
// Stop the current animation.
if (mnAnimationId != controller::Animator::NotAnAnimationId)
{
mrAnimatorAccess.GetAnimator()->RemoveAnimation(mnAnimationId);
}
// Restart the animation.
mrAnimatorAccess.AddRun(shared_from_this());
auto sharedThis(shared_from_this());
mnAnimationId = mrAnimatorAccess.GetAnimator()->AddAnimation(
[this] (double const val) { (*this)(val); },
[sharedThis=std::move(sharedThis)] () { sharedThis->mrAnimatorAccess.RemoveRun(sharedThis); }
);
}
void PageObjectRun::operator () (const double nGlobalTime)
{
if (mnStartTime < 0)
mnStartTime = nGlobalTime;
double nLocalTime (nGlobalTime - mnStartTime);
if (nLocalTime > 1.0)
nLocalTime = 1.0;
nLocalTime = maAccelerationFunction(nLocalTime);
model::SlideSorterModel& rModel (mrAnimatorAccess.GetModel());
view::SlideSorterView& rView (mrAnimatorAccess.GetView());
for (sal_Int32 nIndex=mnStartIndex; nIndex<=mnEndIndex; ++nIndex)
{
model::SharedPageDescriptor pDescriptor (rModel.GetPageDescriptor(nIndex));
if ( ! pDescriptor)
continue;
const ::tools::Rectangle aOldBoundingBox (pDescriptor->GetBoundingBox());
pDescriptor->GetVisualState().SetLocationOffset(
Blend(
maStartOffset[nIndex-mnStartIndex],
maEndOffset[nIndex-mnStartIndex],
nLocalTime));
// Request a repaint of the old and new bounding box (which largely overlap.)
rView.RequestRepaint(aOldBoundingBox);
rView.RequestRepaint(pDescriptor);
}
// Call Flush to make
// a) animations a bit more smooth and
// b) on Mac without the Flush a Reset of the page locations is not properly
// visualized when the mouse leaves the window during drag-and-drop.
mrAnimatorAccess.GetContentWindow()->GetOutDev()->Flush();
}
} // end of namespace ::sd::slidesorter::view
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */