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         auto aRectangle = getRectangle();
  48         switch (nHdlNum) {
  49             case 0: aPnt = aRectangle.TopLeft();      eKind=SdrHdlKind::UpperLeft; break;
  50             case 1: aPnt = aRectangle.TopCenter();    eKind=SdrHdlKind::Upper; break;
  51             case 2: aPnt = aRectangle.TopRight();     eKind=SdrHdlKind::UpperRight; break;
  52             case 3: aPnt = aRectangle.LeftCenter();   eKind=SdrHdlKind::Left ; break;
  53             case 4: aPnt = aRectangle.RightCenter();  eKind=SdrHdlKind::Right; break;
  54             case 5: aPnt = aRectangle.BottomLeft();   eKind=SdrHdlKind::LowerLeft; break;
  55             case 6: aPnt = aRectangle.BottomCenter(); eKind=SdrHdlKind::Lower; break;
  56             case 7: aPnt = aRectangle.BottomRight();  eKind=SdrHdlKind::LowerRight; break;
  57         }
  58         if (maGeo.nShearAngle)
  59             ShearPoint(aPnt, aRectangle.TopLeft(), maGeo.mfTanShearAngle);
  60         if (maGeo.nRotationAngle)
  61             RotatePoint(aPnt, aRectangle.TopLeft(), maGeo.mfSinRotationAngle, maGeo.mfCosRotationAngle);
  62         std::unique_ptr<SdrHdl> pH(new SdrHdl(aPnt,eKind));
  63         pH->SetObj(const_cast<SdrTextObj*>(this));
  64         pH->SetRotationAngle(maGeo.nRotationAngle);
  65         rHdlList.AddHdl(std::move(pH));
  66     }
  67 }
  68
  69
  70 bool SdrTextObj::hasSpecialDrag() const
  71 {
  72     return true;
  73 }
  74
  75 tools::Rectangle SdrTextObj::ImpDragCalcRect(const SdrDragStat& rDrag) const
  76 {
  77     tools::Rectangle aTmpRect(getRectangle());
  78     const SdrHdl* pHdl=rDrag.GetHdl();
  79     SdrHdlKind eHdl=pHdl==nullptr ? SdrHdlKind::Move : pHdl->GetKind();
  80     bool bEcke=(eHdl==SdrHdlKind::UpperLeft || eHdl==SdrHdlKind::UpperRight || eHdl==SdrHdlKind::LowerLeft || eHdl==SdrHdlKind::LowerRight);
  81     bool bOrtho=rDrag.GetView()!=nullptr && rDrag.GetView()->IsOrtho();
  82     bool bBigOrtho=bEcke && bOrtho && rDrag.GetView()->IsBigOrtho();
  83     Point aPos(rDrag.GetNow());
  84     // Unrotate:
  85     if (maGeo.nRotationAngle) RotatePoint(aPos,aTmpRect.TopLeft(),-maGeo.mfSinRotationAngle,maGeo.mfCosRotationAngle);
  86     // Unshear:
  87     if (maGeo.nShearAngle) ShearPoint(aPos,aTmpRect.TopLeft(),-maGeo.mfTanShearAngle);
  88
  89     bool bLft=(eHdl==SdrHdlKind::UpperLeft || eHdl==SdrHdlKind::Left  || eHdl==SdrHdlKind::LowerLeft);
  90     bool bRgt=(eHdl==SdrHdlKind::UpperRight || eHdl==SdrHdlKind::Right || eHdl==SdrHdlKind::LowerRight);
  91     bool bTop=(eHdl==SdrHdlKind::UpperRight || eHdl==SdrHdlKind::Upper || eHdl==SdrHdlKind::UpperLeft);
  92     bool bBtm=(eHdl==SdrHdlKind::LowerRight || eHdl==SdrHdlKind::Lower || eHdl==SdrHdlKind::LowerLeft);
  93     if (bLft) aTmpRect.SetLeft(aPos.X() );
  94     if (bRgt) aTmpRect.SetRight(aPos.X() );
  95     if (bTop) aTmpRect.SetTop(aPos.Y() );
  96     if (bBtm) aTmpRect.SetBottom(aPos.Y() );
  97     if (bOrtho) { // Ortho
  98         tools::Long nWdt0=getRectangle().Right() - getRectangle().Left();
  99         tools::Long nHgt0=getRectangle().Bottom() - getRectangle().Top();
 100         tools::Long nXMul=aTmpRect.Right() -aTmpRect.Left();
 101         tools::Long nYMul=aTmpRect.Bottom()-aTmpRect.Top();
 102         tools::Long nXDiv=nWdt0;
 103         tools::Long nYDiv=nHgt0;
 104         bool bXNeg=(nXMul<0)!=(nXDiv<0);
 105         bool bYNeg=(nYMul<0)!=(nYDiv<0);
 106         nXMul=std::abs(nXMul);
 107         nYMul=std::abs(nYMul);
 108         nXDiv=std::abs(nXDiv);
 109         nYDiv=std::abs(nYDiv);
 110         Fraction aXFact(nXMul,nXDiv); // fractions for canceling
 111         Fraction aYFact(nYMul,nYDiv); // and for comparing
 112         nXMul=aXFact.GetNumerator();
 113         nYMul=aYFact.GetNumerator();
 114         nXDiv=aXFact.GetDenominator();
 115         nYDiv=aYFact.GetDenominator();
 116         if (bEcke) { // corner point handles
 117             bool bUseX=(aXFact<aYFact) != bBigOrtho;
 118             if (bUseX) {
 119                 tools::Long nNeed=tools::Long(BigInt(nHgt0)*BigInt(nXMul)/BigInt(nXDiv));
 120                 if (bYNeg) nNeed=-nNeed;
 121                 if (bTop) aTmpRect.SetTop(aTmpRect.Bottom()-nNeed );
 122                 if (bBtm) aTmpRect.SetBottom(aTmpRect.Top()+nNeed );
 123             } else {
 124                 tools::Long nNeed=tools::Long(BigInt(nWdt0)*BigInt(nYMul)/BigInt(nYDiv));
 125                 if (bXNeg) nNeed=-nNeed;
 126                 if (bLft) aTmpRect.SetLeft(aTmpRect.Right()-nNeed );
 127                 if (bRgt) aTmpRect.SetRight(aTmpRect.Left()+nNeed );
 128             }
 129         } else { // apex handles
 130             if ((bLft || bRgt) && nXDiv!=0) {
 131                 tools::Long nHgt0b=getRectangle().Bottom() - getRectangle().Top();
 132                 tools::Long nNeed=tools::Long(BigInt(nHgt0b)*BigInt(nXMul)/BigInt(nXDiv));
 133                 aTmpRect.AdjustTop( -((nNeed-nHgt0b)/2) );
 134                 aTmpRect.SetBottom(aTmpRect.Top()+nNeed );
 135             }
 136             if ((bTop || bBtm) && nYDiv!=0) {
 137                 tools::Long nWdt0b=getRectangle().Right() - getRectangle().Left();
 138                 tools::Long nNeed=tools::Long(BigInt(nWdt0b)*BigInt(nYMul)/BigInt(nYDiv));
 139                 aTmpRect.AdjustLeft( -((nNeed-nWdt0b)/2) );
 140                 aTmpRect.SetRight(aTmpRect.Left()+nNeed );
 141             }
 142         }
 143     }
 144     if (dynamic_cast<const SdrObjCustomShape*>(this) ==  nullptr)        // not justifying when in CustomShapes, to be able to detect if a shape has to be mirrored
 145         ImpJustifyRect(aTmpRect);
 146     return aTmpRect;
 147 }
 148
 149
 150 // drag
 151
 152 bool SdrTextObj::applySpecialDrag(SdrDragStat& rDrag)
 153 {
 154     tools::Rectangle aNewRect(ImpDragCalcRect(rDrag));
 155
 156     if(aNewRect.TopLeft() != getRectangle().TopLeft() && (maGeo.nRotationAngle || maGeo.nShearAngle))
 157     {
 158         Point aNewPos(aNewRect.TopLeft());
 159
 160         if (maGeo.nShearAngle)
 161             ShearPoint(aNewPos, getRectangle().TopLeft(), maGeo.mfTanShearAngle);
 162
 163         if (maGeo.nRotationAngle)
 164             RotatePoint(aNewPos, getRectangle().TopLeft(), maGeo.mfSinRotationAngle, maGeo.mfCosRotationAngle);
 165
 166         aNewRect.SetPos(aNewPos);
 167     }
 168
 169     if (aNewRect != getRectangle())
 170     {
 171         NbcSetLogicRect(aNewRect);
 172     }
 173
 174     return true;
 175 }
 176
 177 OUString SdrTextObj::getSpecialDragComment(const SdrDragStat& /*rDrag*/) const
 178 {
 179     return ImpGetDescriptionStr(STR_DragRectResize);
 180 }
 181
 182
 183 // Create
 184
 185 bool SdrTextObj::BegCreate(SdrDragStat& rStat)
 186 {
 187     rStat.SetOrtho4Possible();
 188     tools::Rectangle aRect1(rStat.GetStart(), rStat.GetNow());
 189     aRect1.Normalize();
 190     rStat.SetActionRect(aRect1);
 191     setRectangle(aRect1);
 192     return true;
 193 }
 194
 195 bool SdrTextObj::MovCreate(SdrDragStat& rStat)
 196 {
 197     tools::Rectangle aRect1;
 198     rStat.TakeCreateRect(aRect1);
 199     ImpJustifyRect(aRect1);
 200     rStat.SetActionRect(aRect1);
 201     setRectangle(aRect1); // for ObjName
 202     SetBoundRectDirty();
 203     m_bSnapRectDirty=true;
 204     if (auto pRectObj = dynamic_cast<SdrRectObj *>(this)) {
 205         pRectObj->SetXPolyDirty();
 206     }
 207     return true;
 208 }
 209
 210 bool SdrTextObj::EndCreate(SdrDragStat& rStat, SdrCreateCmd eCmd)
 211 {
 212     tools::Rectangle aRectangle(getRectangle());
 213     rStat.TakeCreateRect(aRectangle);
 214     ImpJustifyRect(aRectangle);
 215     setRectangle(aRectangle);
 216
 217     AdaptTextMinSize();
 218
 219     SetBoundAndSnapRectsDirty();
 220     if (auto pRectObj = dynamic_cast<SdrRectObj *>(this)) {
 221         pRectObj->SetXPolyDirty();
 222     }
 223     return (eCmd==SdrCreateCmd::ForceEnd || rStat.GetPointCount()>=2);
 224 }
 225
 226 void SdrTextObj::BrkCreate(SdrDragStat& /*rStat*/)
 227 {
 228 }
 229
 230 bool SdrTextObj::BckCreate(SdrDragStat& /*rStat*/)
 231 {
 232     return true;
 233 }
 234
 235 basegfx::B2DPolyPolygon SdrTextObj::TakeCreatePoly(const SdrDragStat& rDrag) const
 236 {
 237     tools::Rectangle aRect1;
 238     rDrag.TakeCreateRect(aRect1);
 239     aRect1.Normalize();
 240
 241     basegfx::B2DPolyPolygon aRetval;
 242     const basegfx::B2DRange aRange = vcl::unotools::b2DRectangleFromRectangle(aRect1);
 243     aRetval.append(basegfx::utils::createPolygonFromRect(aRange));
 244     return aRetval;
 245 }
 246
 247 PointerStyle SdrTextObj::GetCreatePointer() const
 248 {
 249     if (IsTextFrame()) return PointerStyle::DrawText;
 250     return PointerStyle::Cross;
 251 }
 252
 253 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */