svx/source/svdraw/svddrag.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 #include <svx/svdview.hxx>
  21 #include <svx/svddrag.hxx>
  22
  23 void SdrDragStat::Clear(bool bLeaveOne)
  24 {
  25     while (!aPnts.empty()) {
  26         delete aPnts.back();
  27         aPnts.pop_back();
  28     }
  29     delete pUser;
  30     pUser=NULL;
  31     aPnts.clear();
  32     if (bLeaveOne) {
  33         aPnts.push_back(new Point);
  34     }
  35 }
  36
  37 void SdrDragStat::Reset()
  38 {
  39     pView=NULL;
  40     pPageView=NULL;
  41     bShown=false;
  42     nMinMov=1;
  43     bMinMoved=false;
  44     bHorFixed=false;
  45     bVerFixed=false;
  46     bWantNoSnap=false;
  47     pHdl=NULL;
  48     bOrtho4=false;
  49     bOrtho8=false;
  50     pDragMethod=NULL;
  51     bEndDragChangesAttributes=false;
  52     bEndDragChangesGeoAndAttributes=false;
  53     bMouseIsUp=false;
  54     Clear(true);
  55     aActionRect=Rectangle();
  56 }
  57
  58 void SdrDragStat::Reset(const Point& rPnt)
  59 {
  60     Reset();
  61     Start()=rPnt;
  62     aPos0=rPnt;
  63     RealNow()=rPnt;
  64 }
  65
  66 void SdrDragStat::NextMove(const Point& rPnt)
  67 {
  68     aPos0=GetNow();
  69     RealNow()=rPnt;
  70     Point aBla=KorregPos(GetRealNow(),GetPrev());
  71     Now()=aBla;
  72 }
  73
  74 void SdrDragStat::NextPoint(bool bSaveReal)
  75 {
  76     Point aPnt(GetNow());
  77     if (bSaveReal) aPnt=aRealNow;
  78     aPnts.push_back(new Point(KorregPos(GetRealNow(),aPnt)));
  79     Prev()=aPnt;
  80 }
  81
  82 void SdrDragStat::PrevPoint()
  83 {
  84     if (aPnts.size()>=2) { // one has to remain at all times
  85         Point* pPnt=aPnts[aPnts.size()-2];
  86         aPnts.erase(aPnts.begin()+aPnts.size()-2);
  87         delete pPnt;
  88         Now()=KorregPos(GetRealNow(),GetPrev());
  89     }
  90 }
  91
  92 Point SdrDragStat::KorregPos(const Point& rNow, const Point& /*rPrev*/) const
  93 {
  94     Point aRet(rNow);
  95     return aRet;
  96 }
  97
  98 bool SdrDragStat::CheckMinMoved(const Point& rPnt)
  99 {
 100     if (!bMinMoved) {
 101         long dx=rPnt.X()-GetPrev().X(); if (dx<0) dx=-dx;
 102         long dy=rPnt.Y()-GetPrev().Y(); if (dy<0) dy=-dy;
 103         if (dx>=long(nMinMov) || dy>=long(nMinMov))
 104             bMinMoved=true;
 105     }
 106     return bMinMoved;
 107 }
 108
 109 Fraction SdrDragStat::GetXFact() const
 110 {
 111     long nMul=GetNow().X()-aRef1.X();
 112     long nDiv=GetPrev().X()-aRef1.X();
 113     if (nDiv==0) nDiv=1;
 114     if (bHorFixed) { nMul=1; nDiv=1; }
 115     return Fraction(nMul,nDiv);
 116 }
 117
 118 Fraction SdrDragStat::GetYFact() const
 119 {
 120     long nMul=GetNow().Y()-aRef1.Y();
 121     long nDiv=GetPrev().Y()-aRef1.Y();
 122     if (nDiv==0) nDiv=1;
 123     if (bVerFixed) { nMul=1; nDiv=1; }
 124     return Fraction(nMul,nDiv);
 125 }
 126
 127 void SdrDragStat::TakeCreateRect(Rectangle& rRect) const
 128 {
 129     rRect=Rectangle(GetStart(),GetNow());
 130     if (GetPointAnz()>=2) {
 131         Point aBtmRgt(GetPoint(1));
 132         rRect.Right()=aBtmRgt.X();
 133         rRect.Bottom()=aBtmRgt.Y();
 134     }
 135     if (pView!=NULL && pView->IsCreate1stPointAsCenter()) {
 136         rRect.Top()+=rRect.Top()-rRect.Bottom();
 137         rRect.Left()+=rRect.Left()-rRect.Right();
 138     }
 139 }
 140
 141 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */