LCOV - code coverage report
Current view: top level - libreoffice/dbaccess/source/ui/querydesign - ConnectionLine.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 0 163 0.0 %
Date: 2012-12-27 Functions: 0 19 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       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 "ConnectionLine.hxx"
      21             : #include "ConnectionLineData.hxx"
      22             : #include "TableWindow.hxx"
      23             : #include "TableWindowListBox.hxx"
      24             : #include "TableConnection.hxx"
      25             : #include <vcl/svapp.hxx>
      26             : #ifndef _INC_MATH
      27             : #include <math.h>
      28             : #endif
      29             : #include <osl/diagnose.h>
      30             : #include <vcl/lineinfo.hxx>
      31             : 
      32             : 
      33             : using namespace dbaui;
      34             : const long DESCRIPT_LINE_WIDTH = 15;
      35             : const long HIT_SENSITIVE_RADIUS = 5;
      36             : 
      37             : namespace
      38             : {
      39             :     /** calcRect creates a new rectangle with the given points
      40             :             @param  _rBase      the base point
      41             :             @param  _aVector    the vector which will be added
      42             :     */
      43           0 :     inline Rectangle calcRect(const Point& _rBase,const Point& _aVector)
      44             :     {
      45           0 :         return Rectangle( _rBase - _aVector, _rBase + _aVector );
      46             :     }
      47             :     // -----------------------------------------------------------------------------
      48             :     /** GetTextPos calculate the rectangle for the connection to be drawn
      49             :             @param  _pWin           the table window where to draw it
      50             :             @param  _aConnPos       the connection point
      51             :             @param  _aDescrLinePos  the description line pos
      52             :     */
      53           0 :     Rectangle GetTextPos(const OTableWindow* _pWin, const Point& _aConnPos,const Point& _aDescrLinePos)
      54             :     {
      55           0 :         OTableWindowListBox* pListBox = _pWin ? _pWin->GetListBox() : NULL;
      56             :         OSL_ENSURE(_pWin && pListBox, "OConnectionLine::GetSourceTextPos : invalid call !");
      57             : 
      58           0 :         Rectangle aReturn;
      59           0 :         if ( pListBox )
      60             :         {
      61           0 :             const long nRowHeight = pListBox->GetEntryHeight();
      62           0 :             aReturn.Top() = _aConnPos.Y() - nRowHeight;
      63           0 :             aReturn.Bottom() = aReturn.Top() + nRowHeight;
      64           0 :             if (_aDescrLinePos.X() < _aConnPos.X())
      65             :             {
      66           0 :                 aReturn.Left() = _aDescrLinePos.X();
      67           0 :                 aReturn.Right() = aReturn.Left() + _aConnPos.X() - _aDescrLinePos.X();
      68             :             }
      69             :             else
      70             :             {
      71           0 :                 aReturn.Left() = _aConnPos.X();
      72           0 :                 aReturn.Right() = aReturn.Left() + _aDescrLinePos.X() - _aConnPos.X();
      73             :             }
      74             :         }
      75             : 
      76           0 :         return aReturn;
      77             :     }
      78             :     // -----------------------------------------------------------------------------
      79             :     /** calcPointsYValue calculate the points Y value in relation to the listbox entry
      80             :             @param  _pWin           the corresponding window
      81             :             @param  _pEntry         the source or dest entry
      82             :             @param  _rNewConPos     (in/out) the connection pos
      83             :             @param  _rNewDescrPos   (in/out) the description pos
      84             :     */
      85           0 :     void calcPointsYValue(const OTableWindow* _pWin,SvTreeListEntry* _pEntry,Point& _rNewConPos,Point& _rNewDescrPos)
      86             :     {
      87           0 :         const OTableWindowListBox* pListBox = _pWin->GetListBox();
      88           0 :         _rNewConPos.Y() = _pWin->GetPosPixel().Y();
      89           0 :         if ( _pEntry )
      90             :         {
      91           0 :             const long nRowHeight = pListBox->GetEntryHeight();
      92           0 :             _rNewConPos.Y() += pListBox->GetPosPixel().Y();
      93           0 :             long nEntryPos = pListBox->GetEntryPosition( _pEntry ).Y();
      94             : 
      95           0 :             if( nEntryPos >= 0 )
      96             :             {
      97           0 :                 _rNewConPos.Y() += nEntryPos;
      98           0 :                 _rNewConPos.Y() += (long)( 0.5 * nRowHeight );
      99             :             }
     100             :             else
     101           0 :                 _rNewConPos.Y() -= (long)( 0.5 * nRowHeight );
     102             : 
     103           0 :             long nListBoxBottom = _pWin->GetPosPixel().Y()
     104           0 :                                     + pListBox->GetPosPixel().Y()
     105           0 :                                     + pListBox->GetSizePixel().Height();
     106           0 :             if( _rNewConPos.Y() > nListBoxBottom )
     107           0 :                 _rNewConPos.Y() = nListBoxBottom + 2;
     108             :         }
     109             :         else
     110           0 :             _rNewConPos.Y() += static_cast<sal_Int32>(pListBox->GetPosPixel().Y()*0.5);
     111             : 
     112           0 :         _rNewDescrPos.Y() = _rNewConPos.Y();
     113           0 :     }
     114             :     // -----------------------------------------------------------------------------
     115             : }
     116             : 
     117             : //========================================================================
     118             : // class OConnectionLine
     119             : //========================================================================
     120             : DBG_NAME(OConnectionLine)
     121             : //------------------------------------------------------------------------
     122           0 : OConnectionLine::OConnectionLine( OTableConnection* _pConn, OConnectionLineDataRef _pLineData )
     123             :     : m_pTabConn( _pConn )
     124           0 :      ,m_pData( _pLineData )
     125             : {
     126             :     DBG_CTOR(OConnectionLine,NULL);
     127           0 : }
     128             : 
     129             : //------------------------------------------------------------------------
     130           0 : OConnectionLine::OConnectionLine( const OConnectionLine& _rLine )
     131             : {
     132             :     DBG_CTOR(OConnectionLine,NULL);
     133           0 :     m_pData = new OConnectionLineData( *_rLine.GetData() );
     134           0 :     *this = _rLine;
     135           0 : }
     136             : 
     137             : //------------------------------------------------------------------------
     138           0 : OConnectionLine::~OConnectionLine()
     139             : {
     140             :     DBG_DTOR(OConnectionLine,NULL);
     141           0 : }
     142             : 
     143             : //------------------------------------------------------------------------
     144           0 : OConnectionLine& OConnectionLine::operator=( const OConnectionLine& rLine )
     145             : {
     146           0 :     if( &rLine != this )
     147             :     {
     148             :         // as the data does not belong to me, I don't delete the old one
     149           0 :         m_pData->CopyFrom(*rLine.GetData());
     150             :             // CopyFrom is virtual, therefore it is not a problem, if m_pData is of a type derived from OTableConnectionData
     151             : 
     152           0 :         m_pTabConn = rLine.m_pTabConn;
     153           0 :         m_aSourceConnPos = rLine.m_aSourceConnPos;
     154           0 :         m_aDestConnPos = rLine.m_aDestConnPos;
     155           0 :         m_aSourceDescrLinePos = rLine.m_aSourceDescrLinePos;
     156           0 :         m_aDestDescrLinePos = rLine.m_aDestDescrLinePos;
     157             :     }
     158             : 
     159           0 :     return *this;
     160             : }
     161             : 
     162             : //------------------------------------------------------------------------
     163           0 : Rectangle OConnectionLine::GetBoundingRect()
     164             : {
     165             :     //////////////////////////////////////////////////////////////////////
     166             :     // determine surrounding rectangle
     167           0 :     Rectangle aBoundingRect( Point(0,0), Point(0,0) );
     168           0 :     if( !IsValid() )
     169             :         return aBoundingRect;
     170             : 
     171           0 :     Point aTopLeft;
     172           0 :     Point aBottomRight;
     173             : 
     174           0 :     if( m_aSourceDescrLinePos.Y() <= m_aDestDescrLinePos.Y() )
     175             :     {
     176           0 :         aTopLeft.Y() = m_aSourceDescrLinePos.Y();
     177           0 :         aBottomRight.Y() = m_aDestDescrLinePos.Y();
     178             :     }
     179             :     else
     180             :     {
     181           0 :         aTopLeft.Y() = m_aDestDescrLinePos.Y();
     182           0 :         aBottomRight.Y() = m_aSourceDescrLinePos.Y();
     183             :     }
     184             : 
     185           0 :     if( m_aSourceDescrLinePos.X() <= m_aDestDescrLinePos.X() )
     186             :     {
     187           0 :         aTopLeft.X() = m_aSourceDescrLinePos.X();
     188           0 :         aBottomRight.X() = m_aDestDescrLinePos.X();
     189             :     }
     190             :     else
     191             :     {
     192           0 :         aTopLeft.X() = m_aDestDescrLinePos.X();
     193           0 :         aBottomRight.X() = m_aSourceDescrLinePos.X();
     194             :     }
     195             : 
     196           0 :     const OTableWindow* pSourceWin = m_pTabConn->GetSourceWin();
     197           0 :     const OTableWindow* pDestWin = m_pTabConn->GetDestWin();
     198             :     //////////////////////////////////////////////////////////////////////
     199             :     // line proceeds in in z-Form
     200           0 :     if( pSourceWin == pDestWin || Abs(m_aSourceConnPos.X() - m_aDestConnPos.X()) > Abs(m_aSourceDescrLinePos.X() - m_aDestDescrLinePos.X()) )
     201             :     {
     202           0 :         aTopLeft.X() -= DESCRIPT_LINE_WIDTH;
     203           0 :         aBottomRight.X() += DESCRIPT_LINE_WIDTH;
     204             :     }
     205             : 
     206           0 :     aBoundingRect = Rectangle( aTopLeft-Point(2,17), aBottomRight+Point(2,2) );
     207             : 
     208             :     return aBoundingRect;
     209             : }
     210             : // -----------------------------------------------------------------------------
     211           0 : void calcPointX1(const OTableWindow* _pWin,Point& _rNewConPos,Point& _rNewDescrPos)
     212             : {
     213           0 :     _rNewConPos.X() = _pWin->GetPosPixel().X() + _pWin->GetSizePixel().Width();
     214           0 :     _rNewDescrPos.X() = _rNewConPos.X();
     215           0 :     _rNewConPos.X() += DESCRIPT_LINE_WIDTH;
     216           0 : }
     217             : // -----------------------------------------------------------------------------
     218           0 : void calcPointX2(const OTableWindow* _pWin,Point& _rNewConPos,Point& _rNewDescrPos)
     219             : {
     220           0 :     _rNewConPos.X() = _pWin->GetPosPixel().X();
     221           0 :     _rNewDescrPos.X() = _rNewConPos.X();
     222           0 :     _rNewConPos.X() -= DESCRIPT_LINE_WIDTH;
     223           0 : }
     224             : //------------------------------------------------------------------------
     225           0 : sal_Bool OConnectionLine::RecalcLine()
     226             : {
     227             :     //////////////////////////////////////////////////////////////////////
     228             :     // Windows and entries must be set
     229           0 :     const OTableWindow* pSourceWin = m_pTabConn->GetSourceWin();
     230           0 :     const OTableWindow* pDestWin = m_pTabConn->GetDestWin();
     231             : 
     232           0 :     if( !pSourceWin || !pDestWin )
     233           0 :         return sal_False;
     234             : 
     235           0 :     SvTreeListEntry* pSourceEntry = pSourceWin->GetListBox()->GetEntryFromText( GetData()->GetSourceFieldName() );
     236           0 :     SvTreeListEntry* pDestEntry = pDestWin->GetListBox()->GetEntryFromText( GetData()->GetDestFieldName() );
     237             : 
     238             :     //////////////////////////////////////////////////////////////////////
     239             :     // determine X-coordinates
     240           0 :     Point aSourceCenter( 0, 0 );
     241           0 :     Point aDestCenter( 0, 0 );
     242             : 
     243           0 :     aSourceCenter.X() = pSourceWin->GetPosPixel().X() + (long)( 0.5*pSourceWin->GetSizePixel().Width() );
     244           0 :     aDestCenter.X() = pDestWin->GetPosPixel().X() + (long)( 0.5*pDestWin->GetSizePixel().Width() );
     245             : 
     246           0 :     const OTableWindow* pFirstWin   = pDestWin;
     247           0 :     const OTableWindow* pSecondWin  = pSourceWin;
     248           0 :     Point* pFirstConPos             = &m_aDestConnPos;
     249           0 :     Point* pFirstDescrPos           = &m_aDestDescrLinePos;
     250           0 :     Point* pSecondConPos            = &m_aSourceConnPos;
     251           0 :     Point* pSecondDescrPos          = &m_aSourceDescrLinePos;
     252           0 :     if( aDestCenter.X() > aSourceCenter.X() )
     253             :     {
     254           0 :         pFirstWin       = pSourceWin;
     255           0 :         pSecondWin      = pDestWin;
     256           0 :         pFirstConPos    = &m_aSourceConnPos;
     257           0 :         pFirstDescrPos  = &m_aSourceDescrLinePos;
     258           0 :         pSecondConPos   = &m_aDestConnPos;
     259           0 :         pSecondDescrPos = &m_aDestDescrLinePos;
     260             :     }
     261             : 
     262           0 :     if ( pFirstWin == pSecondWin && pSourceEntry != pDestEntry )
     263           0 :         calcPointX2(pFirstWin,*pFirstConPos,*pFirstDescrPos);
     264             :     else
     265           0 :         calcPointX1(pFirstWin,*pFirstConPos,*pFirstDescrPos);
     266           0 :     calcPointX2(pSecondWin,*pSecondConPos,*pSecondDescrPos);
     267             : 
     268             :     //////////////////////////////////////////////////////////////////////
     269             :     // determine aSourceConnPosY
     270           0 :     calcPointsYValue(pSourceWin,pSourceEntry,m_aSourceConnPos,m_aSourceDescrLinePos);
     271             : 
     272             :     //////////////////////////////////////////////////////////////////////
     273             :     // determine aDestConnPosY
     274           0 :     calcPointsYValue(pDestWin,pDestEntry,m_aDestConnPos,m_aDestDescrLinePos);
     275             : 
     276           0 :     return sal_True;
     277             : }
     278             : // -----------------------------------------------------------------------------
     279             : 
     280             : //------------------------------------------------------------------------
     281           0 : void OConnectionLine::Draw( OutputDevice* pOutDev )
     282             : {
     283           0 :     const sal_uInt16 nRectSize = 3;
     284             : 
     285             :     //////////////////////////////////////////////////////////////////////
     286             :     // calculate new dimension
     287           0 :     if( !RecalcLine() )
     288           0 :         return;
     289             : 
     290             :     //////////////////////////////////////////////////////////////////////
     291             :     // draw lines
     292           0 :     if (m_pTabConn->IsSelected())
     293           0 :         pOutDev->SetLineColor(Application::GetSettings().GetStyleSettings().GetHighlightColor());
     294             :     else
     295           0 :         pOutDev->SetLineColor(Application::GetSettings().GetStyleSettings().GetWindowTextColor());
     296             : 
     297           0 :     LineInfo aLineInfo;
     298           0 :     if ( m_pTabConn->IsSelected() )
     299           0 :         aLineInfo.SetWidth(3);
     300           0 :     Polygon aPoly;
     301           0 :     aPoly.Insert(0,m_aSourceDescrLinePos);
     302           0 :     aPoly.Insert(1,m_aSourceConnPos);
     303           0 :     aPoly.Insert(2,m_aDestConnPos);
     304           0 :     aPoly.Insert(3,m_aDestDescrLinePos);
     305           0 :     pOutDev->DrawPolyLine(aPoly,aLineInfo);
     306             : 
     307             :     //////////////////////////////////////////////////////////////////////
     308             :     // draw the connection rectangles
     309           0 :     pOutDev->SetFillColor(Application::GetSettings().GetStyleSettings().GetWindowColor());
     310             : 
     311           0 :     Point aVector(nRectSize,nRectSize);
     312           0 :     pOutDev->DrawRect( calcRect(m_aSourceDescrLinePos,aVector) );
     313           0 :     pOutDev->DrawRect( calcRect( m_aDestDescrLinePos,aVector) );
     314             : }
     315             : // -----------------------------------------------------------------------------
     316           0 : sal_Bool OConnectionLine::IsValid() const
     317             : {
     318           0 :     return m_pData.is();
     319             : }
     320             : //------------------------------------------------------------------------
     321           0 : double dist_Euklid(const Point &p1, const Point& p2,const Point& pM, Point& q)
     322             : {
     323           0 :     Point v(p2 - p1);
     324           0 :     Point w(pM - p1);
     325           0 :     double a = sqrt((double)(v.X()*v.X() + v.Y()*v.Y()));
     326           0 :     double l = (v.X() * w.Y() - v.Y() * w.X()) / a;
     327           0 :     double a2 = w.X()*v.X()+w.Y()*v.Y();
     328           0 :     a = a2 / (a * a);
     329           0 :     q.X() = long(p1.X() + a * v.X());
     330           0 :     q.Y() = long(p1.Y() + a * v.Y());
     331           0 :     return l;
     332             : }
     333             : //------------------------------------------------------------------------
     334           0 : bool OConnectionLine::CheckHit( const Point& rMousePos ) const
     335             : {
     336             :     //////////////////////////////////////////////////////////////////////
     337             :     /*
     338             :         course of action with HitTest:
     339             :         the distance is calculated according to Euklid.
     340             :     */
     341           0 :     Point q;
     342           0 :     double l = fabs(dist_Euklid(m_aSourceConnPos,m_aDestConnPos,rMousePos,q));
     343           0 :     if( l < HIT_SENSITIVE_RADIUS)
     344             :     {
     345           0 :         if(::std::min(m_aSourceConnPos.X(),m_aDestConnPos.X()) <= q.X() && ::std::min(m_aSourceConnPos.Y(),m_aDestConnPos.Y()) <= q.Y()
     346           0 :             && q.X() <= ::std::max(m_aDestConnPos.X(),m_aSourceConnPos.X())   && q.Y() <= ::std::max(m_aDestConnPos.Y(),m_aSourceConnPos.Y()))
     347           0 :             return true;
     348             :     }
     349             : 
     350           0 :     return false;
     351             : }
     352             : // -----------------------------------------------------------------------------
     353           0 : Rectangle OConnectionLine::GetSourceTextPos() const
     354             : {
     355           0 :     return GetTextPos(m_pTabConn->GetSourceWin(),m_aSourceConnPos,m_aSourceDescrLinePos);
     356             : }
     357             : // -----------------------------------------------------------------------------
     358           0 : Rectangle OConnectionLine::GetDestTextPos() const
     359             : {
     360           0 :     return GetTextPos(m_pTabConn->GetDestWin(),m_aDestConnPos,m_aDestDescrLinePos);
     361             : }
     362             : // -----------------------------------------------------------------------------
     363           0 : Point OConnectionLine::getMidPoint() const
     364             : {
     365           0 :     Point aDest = m_aDestConnPos - m_aSourceConnPos;
     366           0 :     aDest.X() /= 2;
     367           0 :     aDest.Y() /= 2;
     368             : 
     369           0 :     return m_aSourceConnPos + aDest;
     370             : }
     371             : // -----------------------------------------------------------------------------
     372             : 
     373             : 
     374             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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