/* -*- 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 <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)
,mnMagnSizPix(4)
,mnSnapAngle(1500)
,mnEliminatePolyPointLimitAngle(0)
,meCrookMode(SdrCrookMode::Rotate)
,mbSnapEnab(true)
,mbGridSnap(true)
,mbBordSnap(true)
,mbHlplSnap(true)
,mbOFrmSnap(true)
,mbOPntSnap(false)
,mbOConSnap(true)
,mbMoveSnapOnlyTopLeft(false)
,mbOrtho(false)
,mbBigOrtho(true)
,mbAngleSnapEnab(false)
,mbMoveOnlyDragging(false)
,mbSlantButShear(false)
,mbCrookNoContortion(false)
,mbEliminatePolyPoints(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 (!mbSnapEnab) 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=maMagnSiz.Width();
tools::Long my=maMagnSiz.Height();
if (mbHlplVisible && mbHlplSnap && !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 && mbBordSnap) {
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 (mbOFrmSnap || mbOPntSnap) {
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 (mbOPntSnap && 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 (mbOFrmSnap && 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(mbGridSnap)
{
double fSnapWidth(maSnapWdtX);
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(maSnapWdtY);
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: */
↑ V547 Expression 'pCandidate' is always true.
↑ V547 Expression 'pCandidate' is always true.