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