svx/source/svdraw/svdotxdr.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
  21 #include <svx/svdotext.hxx>
  22 #include <svx/svdhdl.hxx>
  23 #include <svx/svddrag.hxx>
  24 #include <svx/svdview.hxx>
  25 #include <svx/svdorect.hxx>
  26 #include <svx/strings.hrc>
  27 #include <svx/svdoashp.hxx>
  28 #include <tools/bigint.hxx>
  29 #include <basegfx/polygon/b2dpolygon.hxx>
  30 #include <basegfx/range/b2drange.hxx>
  31 #include <basegfx/polygon/b2dpolygontools.hxx>
  32 #include <vcl/canvastools.hxx>
  33 #include <vcl/ptrstyle.hxx>
  34
  35
  36 sal_uInt32 SdrTextObj::GetHdlCount() const
  37 {
  38     return 8;
  39 }
  40
  41 void SdrTextObj::AddToHdlList(SdrHdlList& rHdlList) const
  42 {
  43     for(sal_uInt32 nHdlNum=0; nHdlNum<8; ++nHdlNum)
  44     {
  45         Point aPnt;
  46         SdrHdlKind eKind = SdrHdlKind::UpperLeft;
  47         switch (nHdlNum) {
  48             case 0: aPnt=maRect.TopLeft();      eKind=SdrHdlKind::UpperLeft; break;
  49             case 1: aPnt=maRect.TopCenter();    eKind=SdrHdlKind::Upper; break;
  50             case 2: aPnt=maRect.TopRight();     eKind=SdrHdlKind::UpperRight; break;
  51             case 3: aPnt=maRect.LeftCenter();   eKind=SdrHdlKind::Left ; break;
  52             case 4: aPnt=maRect.RightCenter();  eKind=SdrHdlKind::Right; break;
  53             case 5: aPnt=maRect.BottomLeft();   eKind=SdrHdlKind::LowerLeft; break;
  54             case 6: aPnt=maRect.BottomCenter(); eKind=SdrHdlKind::Lower; break;
  55             case 7: aPnt=maRect.BottomRight();  eKind=SdrHdlKind::LowerRight; break;
  56         }
  57         if (aGeo.nShearAngle!=0) ShearPoint(aPnt,maRect.TopLeft(),aGeo.nTan);
  58         if (aGeo.nRotationAngle!=0) RotatePoint(aPnt,maRect.TopLeft(),aGeo.nSin,aGeo.nCos);
  59         std::unique_ptr<SdrHdl> pH(new SdrHdl(aPnt,eKind));
  60         pH->SetObj(const_cast<SdrTextObj*>(this));
  61         pH->SetRotationAngle(aGeo.nRotationAngle);
  62         rHdlList.AddHdl(std::move(pH));
  63     }
  64 }
  65
  66
  67 bool SdrTextObj::hasSpecialDrag() const
  68 {
  69     return true;
  70 }
  71
  72 tools::Rectangle SdrTextObj::ImpDragCalcRect(const SdrDragStat& rDrag) const
  73 {
  74     tools::Rectangle aTmpRect(maRect);
  75     const SdrHdl* pHdl=rDrag.GetHdl();
  76     SdrHdlKind eHdl=pHdl==nullptr ? SdrHdlKind::Move : pHdl->GetKind();
  77     bool bEcke=(eHdl==SdrHdlKind::UpperLeft || eHdl==SdrHdlKind::UpperRight || eHdl==SdrHdlKind::LowerLeft || eHdl==SdrHdlKind::LowerRight);
  78     bool bOrtho=rDrag.GetView()!=nullptr && rDrag.GetView()->IsOrtho();
  79     bool bBigOrtho=bEcke && bOrtho && rDrag.GetView()->IsBigOrtho();
  80     Point aPos(rDrag.GetNow());
  81     // Unrotate:
  82     if (aGeo.nRotationAngle!=0) RotatePoint(aPos,aTmpRect.TopLeft(),-aGeo.nSin,aGeo.nCos);
  83     // Unshear:
  84     if (aGeo.nShearAngle!=0) ShearPoint(aPos,aTmpRect.TopLeft(),-aGeo.nTan);
  85
  86     bool bLft=(eHdl==SdrHdlKind::UpperLeft || eHdl==SdrHdlKind::Left  || eHdl==SdrHdlKind::LowerLeft);
  87     bool bRgt=(eHdl==SdrHdlKind::UpperRight || eHdl==SdrHdlKind::Right || eHdl==SdrHdlKind::LowerRight);
  88     bool bTop=(eHdl==SdrHdlKind::UpperRight || eHdl==SdrHdlKind::Upper || eHdl==SdrHdlKind::UpperLeft);
  89     bool bBtm=(eHdl==SdrHdlKind::LowerRight || eHdl==SdrHdlKind::Lower || eHdl==SdrHdlKind::LowerLeft);
  90     if (bLft) aTmpRect.SetLeft(aPos.X() );
  91     if (bRgt) aTmpRect.SetRight(aPos.X() );
  92     if (bTop) aTmpRect.SetTop(aPos.Y() );
  93     if (bBtm) aTmpRect.SetBottom(aPos.Y() );
  94     if (bOrtho) { // Ortho
  95         tools::Long nWdt0=maRect.Right() -maRect.Left();
  96         tools::Long nHgt0=maRect.Bottom()-maRect.Top();
  97         tools::Long nXMul=aTmpRect.Right() -aTmpRect.Left();
  98         tools::Long nYMul=aTmpRect.Bottom()-aTmpRect.Top();
  99         tools::Long nXDiv=nWdt0;
 100         tools::Long nYDiv=nHgt0;
 101         bool bXNeg=(nXMul<0)!=(nXDiv<0);
 102         bool bYNeg=(nYMul<0)!=(nYDiv<0);
 103         nXMul=std::abs(nXMul);
 104         nYMul=std::abs(nYMul);
 105         nXDiv=std::abs(nXDiv);
 106         nYDiv=std::abs(nYDiv);
 107         Fraction aXFact(nXMul,nXDiv); // fractions for canceling
 108         Fraction aYFact(nYMul,nYDiv); // and for comparing
 109         nXMul=aXFact.GetNumerator();
 110         nYMul=aYFact.GetNumerator();
 111         nXDiv=aXFact.GetDenominator();
 112         nYDiv=aYFact.GetDenominator();
 113         if (bEcke) { // corner point handles
 114             bool bUseX=(aXFact<aYFact) != bBigOrtho;
 115             if (bUseX) {
 116                 tools::Long nNeed=tools::Long(BigInt(nHgt0)*BigInt(nXMul)/BigInt(nXDiv));
 117                 if (bYNeg) nNeed=-nNeed;
 118                 if (bTop) aTmpRect.SetTop(aTmpRect.Bottom()-nNeed );
 119                 if (bBtm) aTmpRect.SetBottom(aTmpRect.Top()+nNeed );
 120             } else {
 121                 tools::Long nNeed=tools::Long(BigInt(nWdt0)*BigInt(nYMul)/BigInt(nYDiv));
 122                 if (bXNeg) nNeed=-nNeed;
 123                 if (bLft) aTmpRect.SetLeft(aTmpRect.Right()-nNeed );
 124                 if (bRgt) aTmpRect.SetRight(aTmpRect.Left()+nNeed );
 125             }
 126         } else { // apex handles
 127             if ((bLft || bRgt) && nXDiv!=0) {
 128                 tools::Long nHgt0b=maRect.Bottom()-maRect.Top();
 129                 tools::Long nNeed=tools::Long(BigInt(nHgt0b)*BigInt(nXMul)/BigInt(nXDiv));
 130                 aTmpRect.AdjustTop( -((nNeed-nHgt0b)/2) );
 131                 aTmpRect.SetBottom(aTmpRect.Top()+nNeed );
 132             }
 133             if ((bTop || bBtm) && nYDiv!=0) {
 134                 tools::Long nWdt0b=maRect.Right()-maRect.Left();
 135                 tools::Long nNeed=tools::Long(BigInt(nWdt0b)*BigInt(nYMul)/BigInt(nYDiv));
 136                 aTmpRect.AdjustLeft( -((nNeed-nWdt0b)/2) );
 137                 aTmpRect.SetRight(aTmpRect.Left()+nNeed );
 138             }
 139         }
 140     }
 141     if (dynamic_cast<const SdrObjCustomShape*>(this) ==  nullptr)        // not justifying when in CustomShapes, to be able to detect if a shape has to be mirrored
 142         ImpJustifyRect(aTmpRect);
 143     return aTmpRect;
 144 }
 145
 146
 147 // drag
 148
 149 bool SdrTextObj::applySpecialDrag(SdrDragStat& rDrag)
 150 {
 151     tools::Rectangle aNewRect(ImpDragCalcRect(rDrag));
 152
 153     if(aNewRect.TopLeft() != maRect.TopLeft() && (aGeo.nRotationAngle || aGeo.nShearAngle))
 154     {
 155         Point aNewPos(aNewRect.TopLeft());
 156
 157         if(aGeo.nShearAngle)
 158             ShearPoint(aNewPos,maRect.TopLeft(),aGeo.nTan);
 159
 160         if(aGeo.nRotationAngle)
 161             RotatePoint(aNewPos,maRect.TopLeft(),aGeo.nSin,aGeo.nCos);
 162
 163         aNewRect.SetPos(aNewPos);
 164     }
 165
 166     if (aNewRect != maRect)
 167     {
 168         NbcSetLogicRect(aNewRect);
 169     }
 170
 171     return true;
 172 }
 173
 174 OUString SdrTextObj::getSpecialDragComment(const SdrDragStat& /*rDrag*/) const
 175 {
 176     return ImpGetDescriptionStr(STR_DragRectResize);
 177 }
 178
 179
 180 // Create
 181
 182 bool SdrTextObj::BegCreate(SdrDragStat& rStat)
 183 {
 184     rStat.SetOrtho4Possible();
 185     tools::Rectangle aRect1(rStat.GetStart(), rStat.GetNow());
 186     aRect1.Justify();
 187     rStat.SetActionRect(aRect1);
 188     maRect = aRect1;
 189     return true;
 190 }
 191
 192 bool SdrTextObj::MovCreate(SdrDragStat& rStat)
 193 {
 194     tools::Rectangle aRect1;
 195     rStat.TakeCreateRect(aRect1);
 196     ImpJustifyRect(aRect1);
 197     rStat.SetActionRect(aRect1);
 198     maRect = aRect1; // for ObjName
 199     SetBoundRectDirty();
 200     bSnapRectDirty=true;
 201     if (auto pRectObj = dynamic_cast<SdrRectObj *>(this)) {
 202         pRectObj->SetXPolyDirty();
 203     }
 204     return true;
 205 }
 206
 207 bool SdrTextObj::EndCreate(SdrDragStat& rStat, SdrCreateCmd eCmd)
 208 {
 209     rStat.TakeCreateRect(maRect);
 210     ImpJustifyRect(maRect);
 211
 212     AdaptTextMinSize();
 213
 214     SetRectsDirty();
 215     if (auto pRectObj = dynamic_cast<SdrRectObj *>(this)) {
 216         pRectObj->SetXPolyDirty();
 217     }
 218     return (eCmd==SdrCreateCmd::ForceEnd || rStat.GetPointCount()>=2);
 219 }
 220
 221 void SdrTextObj::BrkCreate(SdrDragStat& /*rStat*/)
 222 {
 223 }
 224
 225 bool SdrTextObj::BckCreate(SdrDragStat& /*rStat*/)
 226 {
 227     return true;
 228 }
 229
 230 basegfx::B2DPolyPolygon SdrTextObj::TakeCreatePoly(const SdrDragStat& rDrag) const
 231 {
 232     tools::Rectangle aRect1;
 233     rDrag.TakeCreateRect(aRect1);
 234     aRect1.Justify();
 235
 236     basegfx::B2DPolyPolygon aRetval;
 237     const basegfx::B2DRange aRange = vcl::unotools::b2DRectangleFromRectangle(aRect1);
 238     aRetval.append(basegfx::utils::createPolygonFromRect(aRange));
 239     return aRetval;
 240 }
 241
 242 PointerStyle SdrTextObj::GetCreatePointer() const
 243 {
 244     if (IsTextFrame()) return PointerStyle::DrawText;
 245     return PointerStyle::Cross;
 246 }
 247
 248 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */