6e26550c82
* found as LGPLv3-only fix at svn rev 1172132 (http://svn.apache.org/viewvc?view=revision&revision=1172132)
316 lines
9.1 KiB
C++
316 lines
9.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include "controller/SlsVisibleAreaManager.hxx"
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#include "controller/SlideSorterController.hxx"
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#include "controller/SlsProperties.hxx"
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#include "controller/SlsAnimationFunction.hxx"
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#include "controller/SlsScrollBarManager.hxx"
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#include "controller/SlsCurrentSlideManager.hxx"
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namespace sd { namespace slidesorter { namespace controller {
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namespace {
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class VisibleAreaScroller
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{
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public:
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VisibleAreaScroller (
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SlideSorter& rSlideSorter,
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const Point aStart,
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const Point aEnd);
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void operator() (const double nValue);
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private:
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SlideSorter& mrSlideSorter;
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Point maStart;
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const Point maEnd;
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const ::boost::function<double(double)> maAccelerationFunction;
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};
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} // end of anonymous namespace
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VisibleAreaManager::VisibleAreaManager (SlideSorter& rSlideSorter)
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: mrSlideSorter(rSlideSorter),
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maVisibleRequests(),
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mnScrollAnimationId(Animator::NotAnAnimationId),
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maRequestedVisibleTopLeft(),
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meRequestedAnimationMode(Animator::AM_Immediate),
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mbIsCurrentSlideTrackingActive(true),
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mnDisableCount(0)
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{
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}
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VisibleAreaManager::~VisibleAreaManager (void)
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{
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}
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void VisibleAreaManager::ActivateCurrentSlideTracking (void)
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{
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mbIsCurrentSlideTrackingActive = true;
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}
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void VisibleAreaManager::DeactivateCurrentSlideTracking (void)
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{
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mbIsCurrentSlideTrackingActive = false;
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}
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bool VisibleAreaManager::IsCurrentSlideTrackingActive (void) const
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{
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return mbIsCurrentSlideTrackingActive;
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}
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void VisibleAreaManager::RequestVisible (
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const model::SharedPageDescriptor& rpDescriptor,
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const bool bForce)
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{
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if (rpDescriptor)
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{
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if (mnDisableCount == 0)
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{
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maVisibleRequests.push_back(
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mrSlideSorter.GetView().GetLayouter().GetPageObjectBox(
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rpDescriptor->GetPageIndex(),
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true));
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}
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if (bForce && ! mbIsCurrentSlideTrackingActive)
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ActivateCurrentSlideTracking();
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MakeVisible();
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}
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}
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void VisibleAreaManager::RequestCurrentSlideVisible (void)
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{
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if (mbIsCurrentSlideTrackingActive && mnDisableCount==0)
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RequestVisible(
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mrSlideSorter.GetController().GetCurrentSlideManager()->GetCurrentSlide());
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}
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void VisibleAreaManager::MakeVisible (void)
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{
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if (maVisibleRequests.empty())
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return;
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SharedSdWindow pWindow (mrSlideSorter.GetContentWindow());
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if ( ! pWindow)
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return;
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const Point aCurrentTopLeft (pWindow->PixelToLogic(Point(0,0)));
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const ::boost::optional<Point> aNewVisibleTopLeft (GetRequestedTopLeft());
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maVisibleRequests.clear();
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if ( ! aNewVisibleTopLeft)
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return;
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// We now know what the visible area shall be. Scroll accordingly
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// unless that is not already the visible area or a running scroll
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// animation has it as its target area.
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if (mnScrollAnimationId!=Animator::NotAnAnimationId
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&& maRequestedVisibleTopLeft==aNewVisibleTopLeft)
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return;
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// Stop a running animation.
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if (mnScrollAnimationId != Animator::NotAnAnimationId)
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mrSlideSorter.GetController().GetAnimator()->RemoveAnimation(mnScrollAnimationId);
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maRequestedVisibleTopLeft = aNewVisibleTopLeft.get();
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VisibleAreaScroller aAnimation(
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mrSlideSorter,
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aCurrentTopLeft,
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maRequestedVisibleTopLeft);
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if (meRequestedAnimationMode==Animator::AM_Animated
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&& mrSlideSorter.GetProperties()->IsSmoothSelectionScrolling())
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{
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mnScrollAnimationId = mrSlideSorter.GetController().GetAnimator()->AddAnimation(
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aAnimation,
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0,
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300);
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}
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else
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{
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// Execute the animation at its final value.
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aAnimation(1.0);
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}
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meRequestedAnimationMode = Animator::AM_Immediate;
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}
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::boost::optional<Point> VisibleAreaManager::GetRequestedTopLeft (void) const
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{
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SharedSdWindow pWindow (mrSlideSorter.GetContentWindow());
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if ( ! pWindow)
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return ::boost::optional<Point>();
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// Get the currently visible area and the model area.
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const Rectangle aVisibleArea (pWindow->PixelToLogic(
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Rectangle(
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Point(0,0),
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pWindow->GetOutputSizePixel())));
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const Rectangle aModelArea (mrSlideSorter.GetView().GetModelArea());
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sal_Int32 nVisibleTop (aVisibleArea.Top());
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const sal_Int32 nVisibleWidth (aVisibleArea.GetWidth());
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sal_Int32 nVisibleLeft (aVisibleArea.Left());
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const sal_Int32 nVisibleHeight (aVisibleArea.GetHeight());
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// Find the longest run of boxes whose union fits into the visible area.
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Rectangle aBoundingBox;
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for (::std::vector<Rectangle>::const_iterator
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iBox(maVisibleRequests.begin()),
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iEnd(maVisibleRequests.end());
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iBox!=iEnd;
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++iBox)
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{
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if (nVisibleTop+nVisibleHeight <= iBox->Bottom())
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nVisibleTop = iBox->Bottom()-nVisibleHeight;
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if (nVisibleTop > iBox->Top())
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nVisibleTop = iBox->Top();
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if (nVisibleLeft+nVisibleWidth <= iBox->Right())
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nVisibleLeft = iBox->Right()-nVisibleWidth;
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if (nVisibleLeft > iBox->Left())
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nVisibleLeft = iBox->Left();
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// Make sure the visible area does not move outside the model area.
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if (nVisibleTop + nVisibleHeight > aModelArea.Bottom())
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nVisibleTop = aModelArea.Bottom() - nVisibleHeight;
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if (nVisibleTop < aModelArea.Top())
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nVisibleTop = aModelArea.Top();
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if (nVisibleLeft + nVisibleWidth > aModelArea.Right())
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nVisibleLeft = aModelArea.Right() - nVisibleWidth;
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if (nVisibleLeft < aModelArea.Left())
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nVisibleLeft = aModelArea.Left();
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}
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const Point aRequestedTopLeft (nVisibleLeft, nVisibleTop);
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if (aRequestedTopLeft == aVisibleArea.TopLeft())
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return ::boost::optional<Point>();
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else
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return ::boost::optional<Point>(aRequestedTopLeft);
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}
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//===== VisibleAreaManager::TemporaryDisabler =================================
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VisibleAreaManager::TemporaryDisabler::TemporaryDisabler (SlideSorter& rSlideSorter)
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: mrVisibleAreaManager(rSlideSorter.GetController().GetVisibleAreaManager())
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{
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++mrVisibleAreaManager.mnDisableCount;
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}
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VisibleAreaManager::TemporaryDisabler::~TemporaryDisabler (void)
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{
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--mrVisibleAreaManager.mnDisableCount;
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}
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//===== VerticalVisibleAreaScroller ===========================================
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namespace {
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const static sal_Int32 gnMaxScrollDistance = 300;
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VisibleAreaScroller::VisibleAreaScroller (
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SlideSorter& rSlideSorter,
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const Point aStart,
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const Point aEnd)
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: mrSlideSorter(rSlideSorter),
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maStart(aStart),
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maEnd(aEnd),
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maAccelerationFunction(
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controller::AnimationParametricFunction(
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controller::AnimationBezierFunction (0.1,0.6)))
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{
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// When the distance to scroll is larger than a threshold then first
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// jump to within this distance of the final value and start the
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// animation from there.
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if (abs(aStart.X()-aEnd.X()) > gnMaxScrollDistance)
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{
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if (aStart.X() < aEnd.X())
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maStart.X() = aEnd.X()-gnMaxScrollDistance;
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else
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maStart.X() = aEnd.X()+gnMaxScrollDistance;
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}
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if (abs(aStart.Y()-aEnd.Y()) > gnMaxScrollDistance)
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{
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if (aStart.Y() < aEnd.Y())
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maStart.Y() = aEnd.Y()-gnMaxScrollDistance;
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else
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maStart.Y() = aEnd.Y()+gnMaxScrollDistance;
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}
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}
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void VisibleAreaScroller::operator() (const double nTime)
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{
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const double nLocalTime (maAccelerationFunction(nTime));
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mrSlideSorter.GetController().GetScrollBarManager().SetTopLeft(
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Point(
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sal_Int32(0.5 + maStart.X() * (1.0 - nLocalTime) + maEnd.X() * nLocalTime),
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sal_Int32 (0.5 + maStart.Y() * (1.0 - nLocalTime) + maEnd.Y() * nLocalTime)));
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}
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} // end of anonymous namespace
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} } } // end of namespace ::sd::slidesorter::controller
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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