svx/source/svdraw/svddrag.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*************************************************************************
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * Copyright 2000, 2010 Oracle and/or its affiliates.
   7  *
   8  * OpenOffice.org - a multi-platform office productivity suite
   9  *
  10  * This file is part of OpenOffice.org.
  11  *
  12  * OpenOffice.org is free software: you can redistribute it and/or modify
  13  * it under the terms of the GNU Lesser General Public License version 3
  14  * only, as published by the Free Software Foundation.
  15  *
  16  * OpenOffice.org is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU Lesser General Public License version 3 for more details
  20  * (a copy is included in the LICENSE file that accompanied this code).
  21  *
  22  * You should have received a copy of the GNU Lesser General Public License
  23  * version 3 along with OpenOffice.org.  If not, see
  24  * <http://www.openoffice.org/license.html>
  25  * for a copy of the LGPLv3 License.
  26  *
  27  ************************************************************************/
  28
  29 #include <svx/svdview.hxx>
  30 #include <svx/svddrag.hxx>
  31
  32 void SdrDragStat::Clear(bool bLeaveOne)
  33 {
  34     void* pP=aPnts.First();
  35     while (pP!=NULL) {
  36         delete (Point*)pP;
  37         pP=aPnts.Next();
  38     }
  39     if (pUser!=NULL) delete pUser;
  40     pUser=NULL;
  41     aPnts.Clear();
  42     if (bLeaveOne) {
  43         aPnts.Insert(new Point,CONTAINER_APPEND);
  44     }
  45 }
  46
  47 void SdrDragStat::Reset()
  48 {
  49     pView=NULL;
  50     pPageView=NULL;
  51     bShown=sal_False;
  52     nMinMov=1;
  53     bMinMoved=sal_False;
  54     bHorFixed=sal_False;
  55     bVerFixed=sal_False;
  56     bWantNoSnap=sal_False;
  57     pHdl=NULL;
  58     bOrtho4=sal_False;
  59     bOrtho8=sal_False;
  60     pDragMethod=NULL;
  61     bEndDragChangesAttributes=sal_False;
  62     bEndDragChangesGeoAndAttributes=sal_False;
  63     bMouseIsUp=sal_False;
  64     Clear(sal_True);
  65     aActionRect=Rectangle();
  66 }
  67
  68 void SdrDragStat::Reset(const Point& rPnt)
  69 {
  70     Reset();
  71     Start()=rPnt;
  72     aPos0=rPnt;
  73     aRealPos0=rPnt;
  74     RealNow()=rPnt;
  75 }
  76
  77 void SdrDragStat::NextMove(const Point& rPnt)
  78 {
  79     aRealPos0=GetRealNow();
  80     aPos0=GetNow();
  81     RealNow()=rPnt;
  82     Point aBla=KorregPos(GetRealNow(),GetPrev());
  83     Now()=aBla;
  84 }
  85
  86 void SdrDragStat::NextPoint(bool bSaveReal)
  87 {
  88     Point aPnt(GetNow());
  89     if (bSaveReal) aPnt=aRealNow;
  90     aPnts.Insert(new Point(KorregPos(GetRealNow(),aPnt)),CONTAINER_APPEND);
  91     Prev()=aPnt;
  92 }
  93
  94 void SdrDragStat::PrevPoint()
  95 {
  96     if (aPnts.Count()>=2) { // one has to remain at all times
  97         Point* pPnt=(Point*)(aPnts.GetObject(aPnts.Count()-2));
  98         aPnts.Remove(aPnts.Count()-2);
  99         delete pPnt;
 100         Now()=KorregPos(GetRealNow(),GetPrev());
 101     }
 102 }
 103
 104 Point SdrDragStat::KorregPos(const Point& rNow, const Point& /*rPrev*/) const
 105 {
 106     Point aRet(rNow);
 107     return aRet;
 108 }
 109
 110 bool SdrDragStat::CheckMinMoved(const Point& rPnt)
 111 {
 112     if (!bMinMoved) {
 113         long dx=rPnt.X()-GetPrev().X(); if (dx<0) dx=-dx;
 114         long dy=rPnt.Y()-GetPrev().Y(); if (dy<0) dy=-dy;
 115         if (dx>=long(nMinMov) || dy>=long(nMinMov))
 116             bMinMoved=sal_True;
 117     }
 118     return bMinMoved;
 119 }
 120
 121 Fraction SdrDragStat::GetXFact() const
 122 {
 123     long nMul=GetNow().X()-aRef1.X();
 124     long nDiv=GetPrev().X()-aRef1.X();
 125     if (nDiv==0) nDiv=1;
 126     if (bHorFixed) { nMul=1; nDiv=1; }
 127     return Fraction(nMul,nDiv);
 128 }
 129
 130 Fraction SdrDragStat::GetYFact() const
 131 {
 132     long nMul=GetNow().Y()-aRef1.Y();
 133     long nDiv=GetPrev().Y()-aRef1.Y();
 134     if (nDiv==0) nDiv=1;
 135     if (bVerFixed) { nMul=1; nDiv=1; }
 136     return Fraction(nMul,nDiv);
 137 }
 138
 139 void SdrDragStat::TakeCreateRect(Rectangle& rRect) const
 140 {
 141     rRect=Rectangle(GetStart(),GetNow());
 142     if (GetPointAnz()>=2) {
 143         Point aBtmRgt(GetPoint(1));
 144         rRect.Right()=aBtmRgt.X();
 145         rRect.Bottom()=aBtmRgt.Y();
 146     }
 147     if (pView!=NULL && pView->IsCreate1stPointAsCenter()) {
 148         rRect.Top()+=rRect.Top()-rRect.Bottom();
 149         rRect.Left()+=rRect.Left()-rRect.Right();
 150     }
 151 }
 152
 153 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */