diff options
Diffstat (limited to 'svx/source/svdraw/svdsnpv.cxx')
| -rw-r--r-- | svx/source/svdraw/svdsnpv.cxx | 633 |
1 files changed, 633 insertions, 0 deletions
diff --git a/svx/source/svdraw/svdsnpv.cxx b/svx/source/svdraw/svdsnpv.cxx new file mode 100644 index 000000000..bcef8b3c3 --- /dev/null +++ b/svx/source/svdraw/svdsnpv.cxx @@ -0,0 +1,633 @@ +/* -*- 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 <svx/svdsnpv.hxx> +#include <math.h> + +#include <svx/svdobj.hxx> +#include <svx/svdpagv.hxx> +#include <svx/svdpage.hxx> +#include <svx/svditer.hxx> +#include <svx/sdr/overlay/overlayobjectlist.hxx> +#include <sdr/overlay/overlaycrosshair.hxx> +#include <sdr/overlay/overlayhelpline.hxx> +#include <svx/sdr/overlay/overlaymanager.hxx> +#include <svx/sdrpaintwindow.hxx> +#include <tools/debug.hxx> +#include <vcl/ptrstyle.hxx> + + +class ImplPageOriginOverlay +{ + // The OverlayObjects + sdr::overlay::OverlayObjectList maObjects; + + // The current position in logical coordinates + basegfx::B2DPoint maPosition; + +public: + ImplPageOriginOverlay(const SdrPaintView& rView, const basegfx::B2DPoint& rStartPos); + + // The OverlayObjects are cleared using the destructor of OverlayObjectList. + // That destructor calls clear() at the list which removes all objects from the + // OverlayManager and deletes them. + + void SetPosition(const basegfx::B2DPoint& rNewPosition); +}; + +ImplPageOriginOverlay::ImplPageOriginOverlay(const SdrPaintView& rView, const basegfx::B2DPoint& rStartPos) +: maPosition(rStartPos) +{ + for(sal_uInt32 a(0); a < rView.PaintWindowCount(); a++) + { + SdrPaintWindow* pCandidate = rView.GetPaintWindow(a); + const rtl::Reference< sdr::overlay::OverlayManager >& xTargetOverlay = pCandidate->GetOverlayManager(); + + if (xTargetOverlay.is()) + { + std::unique_ptr<sdr::overlay::OverlayCrosshairStriped> aNew(new sdr::overlay::OverlayCrosshairStriped( + maPosition)); + xTargetOverlay->add(*aNew); + maObjects.append(std::move(aNew)); + } + } +} + +void ImplPageOriginOverlay::SetPosition(const basegfx::B2DPoint& rNewPosition) +{ + if(rNewPosition == maPosition) + return; + + // apply to OverlayObjects + for(sal_uInt32 a(0); a < maObjects.count(); a++) + { + sdr::overlay::OverlayCrosshairStriped* pCandidate = + static_cast< sdr::overlay::OverlayCrosshairStriped* >(&maObjects.getOverlayObject(a)); + + if(pCandidate) + { + pCandidate->setBasePosition(rNewPosition); + } + } + + // remember new position + maPosition = rNewPosition; +} + + +class ImplHelpLineOverlay +{ + // The OverlayObjects + sdr::overlay::OverlayObjectList maObjects; + + // The current position in logical coordinates + basegfx::B2DPoint maPosition; + + // HelpLine specific stuff + SdrPageView* mpPageView; + sal_uInt16 mnHelpLineNumber; + SdrHelpLineKind meHelpLineKind; + +public: + ImplHelpLineOverlay(const SdrPaintView& rView, const basegfx::B2DPoint& rStartPos, + SdrPageView* pPageView, sal_uInt16 nHelpLineNumber, SdrHelpLineKind eKind); + + // The OverlayObjects are cleared using the destructor of OverlayObjectList. + // That destructor calls clear() at the list which removes all objects from the + // OverlayManager and deletes them. + + void SetPosition(const basegfx::B2DPoint& rNewPosition); + + // access to HelpLine specific stuff + SdrPageView* GetPageView() const { return mpPageView; } + sal_uInt16 GetHelpLineNumber() const { return mnHelpLineNumber; } + SdrHelpLineKind GetHelpLineKind() const { return meHelpLineKind; } +}; + +ImplHelpLineOverlay::ImplHelpLineOverlay( + const SdrPaintView& rView, const basegfx::B2DPoint& rStartPos, + SdrPageView* pPageView, sal_uInt16 nHelpLineNumber, SdrHelpLineKind eKind) +: maPosition(rStartPos), + mpPageView(pPageView), + mnHelpLineNumber(nHelpLineNumber), + meHelpLineKind(eKind) +{ + for(sal_uInt32 a(0); a < rView.PaintWindowCount(); a++) + { + SdrPaintWindow* pCandidate = rView.GetPaintWindow(a); + const rtl::Reference< sdr::overlay::OverlayManager >& xTargetOverlay = pCandidate->GetOverlayManager(); + + if (xTargetOverlay.is()) + { + std::unique_ptr<sdr::overlay::OverlayHelplineStriped> aNew(new sdr::overlay::OverlayHelplineStriped( + maPosition, meHelpLineKind)); + xTargetOverlay->add(*aNew); + maObjects.append(std::move(aNew)); + } + } +} + +void ImplHelpLineOverlay::SetPosition(const basegfx::B2DPoint& rNewPosition) +{ + if(rNewPosition == maPosition) + return; + + // apply to OverlayObjects + for(sal_uInt32 a(0); a < maObjects.count(); a++) + { + sdr::overlay::OverlayHelplineStriped* pCandidate = + static_cast< sdr::overlay::OverlayHelplineStriped* >(&maObjects.getOverlayObject(a)); + + if(pCandidate) + { + pCandidate->setBasePosition(rNewPosition); + } + } + + // remember new position + maPosition = rNewPosition; +} + +SdrSnapView::SdrSnapView( + SdrModel& rSdrModel, + OutputDevice* pOut) +: SdrPaintView(rSdrModel, pOut) + ,mpPageOriginOverlay(nullptr) + ,mpHelpLineOverlay(nullptr) + ,nMagnSizPix(4) + ,nSnapAngle(1500) + ,nEliminatePolyPointLimitAngle(0) + ,eCrookMode(SdrCrookMode::Rotate) + ,bSnapEnab(true) + ,bGridSnap(true) + ,bBordSnap(true) + ,bHlplSnap(true) + ,bOFrmSnap(true) + ,bOPntSnap(false) + ,bOConSnap(true) + ,bMoveSnapOnlyTopLeft(false) + ,bOrtho(false) + ,bBigOrtho(true) + ,bAngleSnapEnab(false) + ,bMoveOnlyDragging(false) + ,bSlantButShear(false) + ,bCrookNoContortion(false) + ,bEliminatePolyPoints(false) +{ +} + +SdrSnapView::~SdrSnapView() +{ + BrkSetPageOrg(); + BrkDragHelpLine(); +} + + +bool SdrSnapView::IsAction() const +{ + return IsSetPageOrg() || IsDragHelpLine() || SdrPaintView::IsAction(); +} + +void SdrSnapView::MovAction(const Point& rPnt) +{ + SdrPaintView::MovAction(rPnt); + if (IsSetPageOrg()) { + MovSetPageOrg(rPnt); + } + if (IsDragHelpLine()) { + MovDragHelpLine(rPnt); + } +} + +void SdrSnapView::EndAction() +{ + if (IsSetPageOrg()) { + EndSetPageOrg(); + } + if (IsDragHelpLine()) { + EndDragHelpLine(); + } + SdrPaintView::EndAction(); +} + +void SdrSnapView::BckAction() +{ + BrkSetPageOrg(); + BrkDragHelpLine(); + SdrPaintView::BckAction(); +} + +void SdrSnapView::BrkAction() +{ + BrkSetPageOrg(); + BrkDragHelpLine(); + SdrPaintView::BrkAction(); +} + +void SdrSnapView::TakeActionRect(tools::Rectangle& rRect) const +{ + if (IsSetPageOrg() || IsDragHelpLine()) { + rRect=tools::Rectangle(maDragStat.GetNow(),maDragStat.GetNow()); + } else { + SdrPaintView::TakeActionRect(rRect); + } +} + + +Point SdrSnapView::GetSnapPos(const Point& rPnt, const SdrPageView* pPV) const +{ + Point aPt(rPnt); + SnapPos(aPt,pPV); + return aPt; +} + +#define NOT_SNAPPED 0x7FFFFFFF +SdrSnap SdrSnapView::SnapPos(Point& rPnt, const SdrPageView* pPV) const +{ + if (!bSnapEnab) return SdrSnap::NOTSNAPPED; + tools::Long x=rPnt.X(); + tools::Long y=rPnt.Y(); + if (pPV==nullptr) { + pPV=GetSdrPageView(); + if (pPV==nullptr) return SdrSnap::NOTSNAPPED; + } + + tools::Long dx=NOT_SNAPPED; + tools::Long dy=NOT_SNAPPED; + tools::Long dx1,dy1; + tools::Long mx=aMagnSiz.Width(); + tools::Long my=aMagnSiz.Height(); + if (mbHlplVisible && bHlplSnap && !IsDragHelpLine()) + { + const SdrHelpLineList& rHLL=pPV->GetHelpLines(); + sal_uInt16 nCount=rHLL.GetCount(); + for (sal_uInt16 i=nCount; i>0;) { + i--; + const SdrHelpLine& rHL=rHLL[i]; + const Point& rPos=rHL.GetPos(); + switch (rHL.GetKind()) { + case SdrHelpLineKind::Vertical: { + tools::Long a=x-rPos.X(); + if (std::abs(a)<=mx) { dx1=-a; if (std::abs(dx1)<std::abs(dx)) dx=dx1; } + } break; + case SdrHelpLineKind::Horizontal: { + tools::Long b=y-rPos.Y(); + if (std::abs(b)<=my) { dy1=-b; if (std::abs(dy1)<std::abs(dy)) dy=dy1; } + } break; + case SdrHelpLineKind::Point: { + tools::Long a=x-rPos.X(); + tools::Long b=y-rPos.Y(); + if (std::abs(a)<=mx && std::abs(b)<=my) { + dx1=-a; dy1=-b; + if (std::abs(dx1)<std::abs(dx) && std::abs(dy1)<std::abs(dy)) { dx=dx1; dy=dy1; } + } + } break; + } // switch + } + } + if (mbBordVisible && bBordSnap) { + SdrPage* pPage=pPV->GetPage(); + tools::Long xs=pPage->GetWidth(); + tools::Long ys=pPage->GetHeight(); + tools::Long lft=pPage->GetLeftBorder(); + tools::Long rgt=pPage->GetRightBorder(); + tools::Long upp=pPage->GetUpperBorder(); + tools::Long lwr=pPage->GetLowerBorder(); + tools::Long a; + a=x- lft ; if (std::abs(a)<=mx) { dx1=-a; if (std::abs(dx1)<std::abs(dx)) dx=dx1; } // left margin + a=x-(xs-rgt); if (std::abs(a)<=mx) { dx1=-a; if (std::abs(dx1)<std::abs(dx)) dx=dx1; } // right margin + a=x ; if (std::abs(a)<=mx) { dx1=-a; if (std::abs(dx1)<std::abs(dx)) dx=dx1; } // left edge of paper + a=x- xs ; if (std::abs(a)<=mx) { dx1=-a; if (std::abs(dx1)<std::abs(dx)) dx=dx1; } // right edge of paper + a=y- upp ; if (std::abs(a)<=my) { dy1=-a; if (std::abs(dy1)<std::abs(dy)) dy=dy1; } // left margin + a=y-(ys-lwr); if (std::abs(a)<=my) { dy1=-a; if (std::abs(dy1)<std::abs(dy)) dy=dy1; } // right margin + a=y ; if (std::abs(a)<=my) { dy1=-a; if (std::abs(dy1)<std::abs(dy)) dy=dy1; } // left edge of paper + a=y- ys ; if (std::abs(a)<=my) { dy1=-a; if (std::abs(dy1)<std::abs(dy)) dy=dy1; } // right edge of paper + } + if (bOFrmSnap || bOPntSnap) { + sal_uInt32 nMaxPointSnapCount=200; + sal_uInt32 nMaxFrameSnapCount=200; + + // go back to SdrIterMode::DeepNoGroups runthrough for snap to object comparisons + SdrObjListIter aIter(pPV->GetPage(),SdrIterMode::DeepNoGroups,true); + + while (aIter.IsMore() && (nMaxPointSnapCount>0 || nMaxFrameSnapCount>0)) { + SdrObject* pO=aIter.Next(); + tools::Rectangle aRect(pO->GetCurrentBoundRect()); + aRect.AdjustLeft( -mx ); + aRect.AdjustRight(mx ); + aRect.AdjustTop( -my ); + aRect.AdjustBottom(my ); + if (aRect.Contains(rPnt)) { + if (bOPntSnap && nMaxPointSnapCount>0) + { + sal_uInt32 nCount(pO->GetSnapPointCount()); + for (sal_uInt32 i(0); i < nCount && nMaxPointSnapCount > 0; i++) + { + Point aP(pO->GetSnapPoint(i)); + dx1=x-aP.X(); + dy1=y-aP.Y(); + if (std::abs(dx1)<=mx && std::abs(dy1)<=my && std::abs(dx1)<std::abs(dx) && std::abs(dy1)<std::abs(dy)) { + dx=-dx1; + dy=-dy1; + } + nMaxPointSnapCount--; + } + } + if (bOFrmSnap && nMaxFrameSnapCount>0) { + tools::Rectangle aLog(pO->GetSnapRect()); + tools::Rectangle aR1(aLog); + aR1.AdjustLeft( -mx ); + aR1.AdjustRight(mx ); + aR1.AdjustTop( -my ); + aR1.AdjustBottom(my ); + if (aR1.Contains(rPnt)) { + if (std::abs(x-aLog.Left ())<=mx) { dx1=-(x-aLog.Left ()); if (std::abs(dx1)<std::abs(dx)) dx=dx1; } + if (std::abs(x-aLog.Right ())<=mx) { dx1=-(x-aLog.Right ()); if (std::abs(dx1)<std::abs(dx)) dx=dx1; } + if (std::abs(y-aLog.Top ())<=my) { dy1=-(y-aLog.Top ()); if (std::abs(dy1)<std::abs(dy)) dy=dy1; } + if (std::abs(y-aLog.Bottom())<=my) { dy1=-(y-aLog.Bottom()); if (std::abs(dy1)<std::abs(dy)) dy=dy1; } + } + nMaxFrameSnapCount--; + } + } + } + } + if(bGridSnap) + { + double fSnapWidth(aSnapWdtX); + if(dx == NOT_SNAPPED && fSnapWidth != 0.0) + { + double fx = static_cast<double>(x); + + // round instead of trunc + if(fx - static_cast<double>(pPV->GetPageOrigin().X()) >= 0.0) + fx += fSnapWidth / 2.0; + else + fx -= fSnapWidth / 2.0; + + x = static_cast<tools::Long>((fx - static_cast<double>(pPV->GetPageOrigin().X())) / fSnapWidth); + x = static_cast<tools::Long>(static_cast<double>(x) * fSnapWidth + static_cast<double>(pPV->GetPageOrigin().X())); + dx = 0; + } + fSnapWidth = double(aSnapWdtY); + if(dy == NOT_SNAPPED && fSnapWidth) + { + double fy = static_cast<double>(y); + + // round instead of trunc + if(fy - static_cast<double>(pPV->GetPageOrigin().Y()) >= 0.0) + fy += fSnapWidth / 2.0; + else + fy -= fSnapWidth / 2.0; + + y = static_cast<tools::Long>((fy - static_cast<double>(pPV->GetPageOrigin().Y())) / fSnapWidth); + y = static_cast<tools::Long>(static_cast<double>(y) * fSnapWidth + static_cast<double>(pPV->GetPageOrigin().Y())); + dy = 0; + } + } + SdrSnap bRet=SdrSnap::NOTSNAPPED; + if (dx==NOT_SNAPPED) dx=0; else bRet|=SdrSnap::XSNAPPED; + if (dy==NOT_SNAPPED) dy=0; else bRet|=SdrSnap::YSNAPPED; + rPnt.setX(x+dx ); + rPnt.setY(y+dy ); + return bRet; +} + +void SdrSnapView::CheckSnap(const Point& rPt, tools::Long& nBestXSnap, tools::Long& nBestYSnap, bool& bXSnapped, bool& bYSnapped) const +{ + Point aPt(rPt); + SdrSnap nRet=SnapPos(aPt,nullptr); + aPt-=rPt; + if (nRet & SdrSnap::XSNAPPED) { + if (bXSnapped) { + if (std::abs(aPt.X())<std::abs(nBestXSnap)) { + nBestXSnap=aPt.X(); + } + } else { + nBestXSnap=aPt.X(); + bXSnapped=true; + } + } + if (nRet & SdrSnap::YSNAPPED) { + if (bYSnapped) { + if (std::abs(aPt.Y())<std::abs(nBestYSnap)) { + nBestYSnap=aPt.Y(); + } + } else { + nBestYSnap=aPt.Y(); + bYSnapped=true; + } + } +} + + +void SdrSnapView::BegSetPageOrg(const Point& rPnt) +{ + BrkAction(); + + DBG_ASSERT(nullptr == mpPageOriginOverlay, "SdrSnapView::BegSetPageOrg: There exists an ImplPageOriginOverlay (!)"); + basegfx::B2DPoint aStartPos(rPnt.X(), rPnt.Y()); + mpPageOriginOverlay = new ImplPageOriginOverlay(*this, aStartPos); + maDragStat.Reset(GetSnapPos(rPnt,nullptr)); +} + +void SdrSnapView::MovSetPageOrg(const Point& rPnt) +{ + if(IsSetPageOrg()) + { + maDragStat.NextMove(GetSnapPos(rPnt,nullptr)); + DBG_ASSERT(mpPageOriginOverlay, "SdrSnapView::MovSetPageOrg: no ImplPageOriginOverlay (!)"); + basegfx::B2DPoint aNewPos(maDragStat.GetNow().X(), maDragStat.GetNow().Y()); + mpPageOriginOverlay->SetPosition(aNewPos); + } +} + +void SdrSnapView::EndSetPageOrg() +{ + if(!IsSetPageOrg()) + return; + + SdrPageView* pPV = GetSdrPageView(); + + if(pPV) + { + Point aPnt(maDragStat.GetNow()); + pPV->SetPageOrigin(aPnt); + } + + // cleanup + BrkSetPageOrg(); +} + +void SdrSnapView::BrkSetPageOrg() +{ + if(IsSetPageOrg()) + { + DBG_ASSERT(mpPageOriginOverlay, "SdrSnapView::MovSetPageOrg: no ImplPageOriginOverlay (!)"); + delete mpPageOriginOverlay; + mpPageOriginOverlay = nullptr; + } +} + + +bool SdrSnapView::PickHelpLine(const Point& rPnt, short nTol, const OutputDevice& rOut, sal_uInt16& rnHelpLineNum, SdrPageView*& rpPV) const +{ + rpPV=nullptr; + nTol=ImpGetHitTolLogic(nTol,&rOut); + SdrPageView* pPV = GetSdrPageView(); + + if(pPV) + { + Point aPnt(rPnt); + sal_uInt16 nIndex=pPV->GetHelpLines().HitTest(aPnt,sal_uInt16(nTol),rOut); + if (nIndex!=SDRHELPLINE_NOTFOUND) { + rpPV=pPV; + rnHelpLineNum=nIndex; + return true; + } + } + return false; +} + +// start HelpLine drag for new HelpLine +bool SdrSnapView::BegDragHelpLine(sal_uInt16 nHelpLineNum, SdrPageView* pPV) +{ + bool bRet(false); + + BrkAction(); + + if(pPV && nHelpLineNum < pPV->GetHelpLines().GetCount()) + { + const SdrHelpLineList& rHelpLines = pPV->GetHelpLines(); + const SdrHelpLine& rHelpLine = rHelpLines[nHelpLineNum]; + Point aHelpLinePos = rHelpLine.GetPos(); + basegfx::B2DPoint aStartPos(aHelpLinePos.X(), aHelpLinePos.Y()); + + DBG_ASSERT(nullptr == mpHelpLineOverlay, "SdrSnapView::BegDragHelpLine: There exists an ImplHelpLineOverlay (!)"); + mpHelpLineOverlay = new ImplHelpLineOverlay(*this, aStartPos, pPV, nHelpLineNum, rHelpLine.GetKind()); + + maDragStat.Reset(GetSnapPos(aHelpLinePos, pPV)); + maDragStat.SetMinMove(ImpGetMinMovLogic(-3, nullptr)); + + bRet = true; + } + + return bRet; +} + +// start HelpLine drag with existing HelpLine +void SdrSnapView::BegDragHelpLine(const Point& rPnt, SdrHelpLineKind eNewKind) +{ + BrkAction(); + + if(GetSdrPageView()) + { + DBG_ASSERT(nullptr == mpHelpLineOverlay, "SdrSnapView::BegDragHelpLine: There exists an ImplHelpLineOverlay (!)"); + basegfx::B2DPoint aStartPos(rPnt.X(), rPnt.Y()); + mpHelpLineOverlay = new ImplHelpLineOverlay(*this, aStartPos, nullptr, 0, eNewKind); + maDragStat.Reset(GetSnapPos(rPnt, nullptr)); + } +} + +PointerStyle SdrSnapView::GetDraggedHelpLinePointer() const +{ + if(IsDragHelpLine()) + { + switch(mpHelpLineOverlay->GetHelpLineKind()) + { + case SdrHelpLineKind::Vertical : return PointerStyle::ESize; + case SdrHelpLineKind::Horizontal: return PointerStyle::SSize; + default : return PointerStyle::Move; + } + } + + return PointerStyle::Move; +} + +void SdrSnapView::MovDragHelpLine(const Point& rPnt) +{ + if(IsDragHelpLine() && maDragStat.CheckMinMoved(rPnt)) + { + Point aPnt(GetSnapPos(rPnt, nullptr)); + + if(aPnt != maDragStat.GetNow()) + { + maDragStat.NextMove(aPnt); + DBG_ASSERT(mpHelpLineOverlay, "SdrSnapView::MovDragHelpLine: no ImplHelpLineOverlay (!)"); + basegfx::B2DPoint aNewPos(maDragStat.GetNow().X(), maDragStat.GetNow().Y()); + mpHelpLineOverlay->SetPosition(aNewPos); + } + } +} + +bool SdrSnapView::EndDragHelpLine() +{ + bool bRet(false); + + if(IsDragHelpLine()) + { + if(maDragStat.IsMinMoved()) + { + SdrPageView* pPageView = mpHelpLineOverlay->GetPageView(); + + if(pPageView) + { + // moved existing one + Point aPnt(maDragStat.GetNow()); + const SdrHelpLineList& rHelpLines = pPageView->GetHelpLines(); + SdrHelpLine aChangedHelpLine = rHelpLines[mpHelpLineOverlay->GetHelpLineNumber()]; + aChangedHelpLine.SetPos(aPnt); + pPageView->SetHelpLine(mpHelpLineOverlay->GetHelpLineNumber(), aChangedHelpLine); + + bRet = true; + } + else + { + // create new one + pPageView = GetSdrPageView(); + + if(pPageView) + { + Point aPnt(maDragStat.GetNow()); + SdrHelpLine aNewHelpLine(mpHelpLineOverlay->GetHelpLineKind(), aPnt); + pPageView->InsertHelpLine(aNewHelpLine); + + bRet = true; + } + } + } + + // cleanup + BrkDragHelpLine(); + } + + return bRet; +} + +void SdrSnapView::BrkDragHelpLine() +{ + if(IsDragHelpLine()) + { + DBG_ASSERT(mpHelpLineOverlay, "SdrSnapView::EndDragHelpLine: no ImplHelpLineOverlay (!)"); + delete mpHelpLineOverlay; + mpHelpLineOverlay = nullptr; + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |