LCOV - code coverage report
Current view: top level - dbaccess/source/ui/querydesign - ConnectionLine.cxx (source / functions) Hit Total Coverage
Test: commit c8344322a7af75b84dd3ca8f78b05543a976dfd5 Lines: 1 167 0.6 %
Date: 2015-06-13 12:38:46 Functions: 2 21 9.5 %
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             : #include <math.h>
      27             : #include <osl/diagnose.h>
      28             : #include <vcl/lineinfo.hxx>
      29             : #include <vcl/settings.hxx>
      30             : 
      31             : using namespace dbaui;
      32             : const long DESCRIPT_LINE_WIDTH = 15;
      33             : const long HIT_SENSITIVE_RADIUS = 5;
      34             : 
      35             : namespace
      36             : {
      37             :     /** calcRect creates a new rectangle with the given points
      38             :             @param  _rBase      the base point
      39             :             @param  _aVector    the vector which will be added
      40             :     */
      41           0 :     inline Rectangle calcRect(const Point& _rBase,const Point& _aVector)
      42             :     {
      43           0 :         return Rectangle( _rBase - _aVector, _rBase + _aVector );
      44             :     }
      45             :     /** GetTextPos calculate the rectangle for the connection to be drawn
      46             :             @param  _pWin           the table window where to draw it
      47             :             @param  _aConnPos       the connection point
      48             :             @param  _aDescrLinePos  the description line pos
      49             :     */
      50           0 :     Rectangle GetTextPos(const OTableWindow* _pWin, const Point& _aConnPos,const Point& _aDescrLinePos)
      51             :     {
      52           0 :         OTableWindowListBox* pListBox = _pWin ? _pWin->GetListBox() : NULL;
      53             :         OSL_ENSURE(_pWin && pListBox, "OConnectionLine::GetSourceTextPos : invalid call !");
      54             : 
      55           0 :         Rectangle aReturn;
      56           0 :         if ( pListBox )
      57             :         {
      58           0 :             const long nRowHeight = pListBox->GetEntryHeight();
      59           0 :             aReturn.Top() = _aConnPos.Y() - nRowHeight;
      60           0 :             aReturn.Bottom() = aReturn.Top() + nRowHeight;
      61           0 :             if (_aDescrLinePos.X() < _aConnPos.X())
      62             :             {
      63           0 :                 aReturn.Left() = _aDescrLinePos.X();
      64           0 :                 aReturn.Right() = aReturn.Left() + _aConnPos.X() - _aDescrLinePos.X();
      65             :             }
      66             :             else
      67             :             {
      68           0 :                 aReturn.Left() = _aConnPos.X();
      69           0 :                 aReturn.Right() = aReturn.Left() + _aDescrLinePos.X() - _aConnPos.X();
      70             :             }
      71             :         }
      72             : 
      73           0 :         return aReturn;
      74             :     }
      75             :     /** calcPointsYValue calculate the points Y value in relation to the listbox entry
      76             :             @param  _pWin           the corresponding window
      77             :             @param  _pEntry         the source or dest entry
      78             :             @param  _rNewConPos     (in/out) the connection pos
      79             :             @param  _rNewDescrPos   (in/out) the description pos
      80             :     */
      81           0 :     void calcPointsYValue(const OTableWindow* _pWin,SvTreeListEntry* _pEntry,Point& _rNewConPos,Point& _rNewDescrPos)
      82             :     {
      83           0 :         const OTableWindowListBox* pListBox = _pWin->GetListBox();
      84           0 :         _rNewConPos.Y() = _pWin->GetPosPixel().Y();
      85           0 :         if ( _pEntry )
      86             :         {
      87           0 :             const long nRowHeight = pListBox->GetEntryHeight();
      88           0 :             _rNewConPos.Y() += pListBox->GetPosPixel().Y();
      89           0 :             long nEntryPos = pListBox->GetEntryPosition( _pEntry ).Y();
      90             : 
      91           0 :             if( nEntryPos >= 0 )
      92             :             {
      93           0 :                 _rNewConPos.Y() += nEntryPos;
      94           0 :                 _rNewConPos.Y() += (long)( 0.5 * nRowHeight );
      95             :             }
      96             :             else
      97           0 :                 _rNewConPos.Y() -= (long)( 0.5 * nRowHeight );
      98             : 
      99           0 :             long nListBoxBottom = _pWin->GetPosPixel().Y()
     100           0 :                                     + pListBox->GetPosPixel().Y()
     101           0 :                                     + pListBox->GetSizePixel().Height();
     102           0 :             if( _rNewConPos.Y() > nListBoxBottom )
     103           0 :                 _rNewConPos.Y() = nListBoxBottom + 2;
     104             :         }
     105             :         else
     106           0 :             _rNewConPos.Y() += static_cast<sal_Int32>(pListBox->GetPosPixel().Y()*0.5);
     107             : 
     108           0 :         _rNewDescrPos.Y() = _rNewConPos.Y();
     109           0 :     }
     110             : }
     111             : 
     112             : // class OConnectionLine
     113           0 : OConnectionLine::OConnectionLine( OTableConnection* _pConn, OConnectionLineDataRef _pLineData )
     114             :     : m_pTabConn( _pConn )
     115           0 :     , m_pData( _pLineData )
     116             : {
     117           0 : }
     118             : 
     119           0 : OConnectionLine::OConnectionLine( const OConnectionLine& _rLine )
     120           0 :     : m_pTabConn(NULL)
     121             : {
     122           0 :     m_pData = new OConnectionLineData( *_rLine.GetData() );
     123           0 :     *this = _rLine;
     124           0 : }
     125             : 
     126           0 : OConnectionLine::~OConnectionLine()
     127             : {
     128           0 : }
     129             : 
     130           0 : OConnectionLine& OConnectionLine::operator=( const OConnectionLine& rLine )
     131             : {
     132           0 :     if( &rLine != this )
     133             :     {
     134             :         // as the data does not belong to me, I don't delete the old one
     135           0 :         m_pData->CopyFrom(*rLine.GetData());
     136             :             // CopyFrom is virtual, therefore it is not a problem, if m_pData is of a type derived from OTableConnectionData
     137             : 
     138           0 :         m_pTabConn = rLine.m_pTabConn;
     139           0 :         m_aSourceConnPos = rLine.m_aSourceConnPos;
     140           0 :         m_aDestConnPos = rLine.m_aDestConnPos;
     141           0 :         m_aSourceDescrLinePos = rLine.m_aSourceDescrLinePos;
     142           0 :         m_aDestDescrLinePos = rLine.m_aDestDescrLinePos;
     143             :     }
     144             : 
     145           0 :     return *this;
     146             : }
     147             : 
     148           0 : Rectangle OConnectionLine::GetBoundingRect()
     149             : {
     150             :     // determine surrounding rectangle
     151           0 :     Rectangle aBoundingRect( Point(0,0), Point(0,0) );
     152           0 :     if( !IsValid() )
     153           0 :         return aBoundingRect;
     154             : 
     155           0 :     Point aTopLeft;
     156           0 :     Point aBottomRight;
     157             : 
     158           0 :     if( m_aSourceDescrLinePos.Y() <= m_aDestDescrLinePos.Y() )
     159             :     {
     160           0 :         aTopLeft.Y() = m_aSourceDescrLinePos.Y();
     161           0 :         aBottomRight.Y() = m_aDestDescrLinePos.Y();
     162             :     }
     163             :     else
     164             :     {
     165           0 :         aTopLeft.Y() = m_aDestDescrLinePos.Y();
     166           0 :         aBottomRight.Y() = m_aSourceDescrLinePos.Y();
     167             :     }
     168             : 
     169           0 :     if( m_aSourceDescrLinePos.X() <= m_aDestDescrLinePos.X() )
     170             :     {
     171           0 :         aTopLeft.X() = m_aSourceDescrLinePos.X();
     172           0 :         aBottomRight.X() = m_aDestDescrLinePos.X();
     173             :     }
     174             :     else
     175             :     {
     176           0 :         aTopLeft.X() = m_aDestDescrLinePos.X();
     177           0 :         aBottomRight.X() = m_aSourceDescrLinePos.X();
     178             :     }
     179             : 
     180           0 :     const OTableWindow* pSourceWin = m_pTabConn->GetSourceWin();
     181           0 :     const OTableWindow* pDestWin = m_pTabConn->GetDestWin();
     182             :     // line proceeds in z-Form
     183           0 :     if( pSourceWin == pDestWin || std::abs(m_aSourceConnPos.X() - m_aDestConnPos.X()) > std::abs(m_aSourceDescrLinePos.X() - m_aDestDescrLinePos.X()) )
     184             :     {
     185           0 :         aTopLeft.X() -= DESCRIPT_LINE_WIDTH;
     186           0 :         aBottomRight.X() += DESCRIPT_LINE_WIDTH;
     187             :     }
     188             : 
     189           0 :     aBoundingRect = Rectangle( aTopLeft-Point(2,17), aBottomRight+Point(2,2) );
     190             : 
     191           0 :     return aBoundingRect;
     192             : }
     193             : 
     194           0 : void calcPointX1(const OTableWindow* _pWin,Point& _rNewConPos,Point& _rNewDescrPos)
     195             : {
     196           0 :     _rNewConPos.X() = _pWin->GetPosPixel().X() + _pWin->GetSizePixel().Width();
     197           0 :     _rNewDescrPos.X() = _rNewConPos.X();
     198           0 :     _rNewConPos.X() += DESCRIPT_LINE_WIDTH;
     199           0 : }
     200             : 
     201           0 : void calcPointX2(const OTableWindow* _pWin,Point& _rNewConPos,Point& _rNewDescrPos)
     202             : {
     203           0 :     _rNewConPos.X() = _pWin->GetPosPixel().X();
     204           0 :     _rNewDescrPos.X() = _rNewConPos.X();
     205           0 :     _rNewConPos.X() -= DESCRIPT_LINE_WIDTH;
     206           0 : }
     207             : 
     208           0 : bool OConnectionLine::RecalcLine()
     209             : {
     210             :     // Windows and entries must be set
     211           0 :     const OTableWindow* pSourceWin = m_pTabConn->GetSourceWin();
     212           0 :     const OTableWindow* pDestWin = m_pTabConn->GetDestWin();
     213             : 
     214           0 :     if( !pSourceWin || !pDestWin )
     215           0 :         return false;
     216             : 
     217           0 :     SvTreeListEntry* pSourceEntry = pSourceWin->GetListBox()->GetEntryFromText( GetData()->GetSourceFieldName() );
     218           0 :     SvTreeListEntry* pDestEntry = pDestWin->GetListBox()->GetEntryFromText( GetData()->GetDestFieldName() );
     219             : 
     220             :     // determine X-coordinates
     221           0 :     Point aSourceCenter( 0, 0 );
     222           0 :     Point aDestCenter( 0, 0 );
     223             : 
     224           0 :     aSourceCenter.X() = pSourceWin->GetPosPixel().X() + (long)( 0.5*pSourceWin->GetSizePixel().Width() );
     225           0 :     aDestCenter.X() = pDestWin->GetPosPixel().X() + (long)( 0.5*pDestWin->GetSizePixel().Width() );
     226             : 
     227           0 :     const OTableWindow* pFirstWin   = pDestWin;
     228           0 :     const OTableWindow* pSecondWin  = pSourceWin;
     229           0 :     Point* pFirstConPos             = &m_aDestConnPos;
     230           0 :     Point* pFirstDescrPos           = &m_aDestDescrLinePos;
     231           0 :     Point* pSecondConPos            = &m_aSourceConnPos;
     232           0 :     Point* pSecondDescrPos          = &m_aSourceDescrLinePos;
     233           0 :     if( aDestCenter.X() > aSourceCenter.X() )
     234             :     {
     235           0 :         pFirstWin       = pSourceWin;
     236           0 :         pSecondWin      = pDestWin;
     237           0 :         pFirstConPos    = &m_aSourceConnPos;
     238           0 :         pFirstDescrPos  = &m_aSourceDescrLinePos;
     239           0 :         pSecondConPos   = &m_aDestConnPos;
     240           0 :         pSecondDescrPos = &m_aDestDescrLinePos;
     241             :     }
     242             : 
     243           0 :     if ( pFirstWin == pSecondWin && pSourceEntry != pDestEntry )
     244           0 :         calcPointX2(pFirstWin,*pFirstConPos,*pFirstDescrPos);
     245             :     else
     246           0 :         calcPointX1(pFirstWin,*pFirstConPos,*pFirstDescrPos);
     247           0 :     calcPointX2(pSecondWin,*pSecondConPos,*pSecondDescrPos);
     248             : 
     249             :     // determine aSourceConnPosY
     250           0 :     calcPointsYValue(pSourceWin,pSourceEntry,m_aSourceConnPos,m_aSourceDescrLinePos);
     251             : 
     252             :     // determine aDestConnPosY
     253           0 :     calcPointsYValue(pDestWin,pDestEntry,m_aDestConnPos,m_aDestDescrLinePos);
     254             : 
     255           0 :     return true;
     256             : }
     257             : 
     258           0 : void OConnectionLine::Draw( OutputDevice* pOutDev )
     259             : {
     260           0 :     const sal_uInt16 nRectSize = 3;
     261             : 
     262             :     // calculate new dimension
     263           0 :     if( !RecalcLine() )
     264           0 :         return;
     265             : 
     266             :     // draw lines
     267           0 :     if (m_pTabConn->IsSelected())
     268           0 :         pOutDev->SetLineColor(Application::GetSettings().GetStyleSettings().GetHighlightColor());
     269             :     else
     270           0 :         pOutDev->SetLineColor(Application::GetSettings().GetStyleSettings().GetWindowTextColor());
     271             : 
     272           0 :     LineInfo aLineInfo;
     273           0 :     if ( m_pTabConn->IsSelected() )
     274           0 :         aLineInfo.SetWidth(3);
     275           0 :     Polygon aPoly;
     276           0 :     aPoly.Insert(0,m_aSourceDescrLinePos);
     277           0 :     aPoly.Insert(1,m_aSourceConnPos);
     278           0 :     aPoly.Insert(2,m_aDestConnPos);
     279           0 :     aPoly.Insert(3,m_aDestDescrLinePos);
     280           0 :     pOutDev->DrawPolyLine(aPoly,aLineInfo);
     281             : 
     282             :     // draw the connection rectangles
     283           0 :     pOutDev->SetFillColor(Application::GetSettings().GetStyleSettings().GetWindowColor());
     284             : 
     285           0 :     Point aVector(nRectSize,nRectSize);
     286           0 :     pOutDev->DrawRect( calcRect(m_aSourceDescrLinePos,aVector) );
     287           0 :     pOutDev->DrawRect( calcRect( m_aDestDescrLinePos,aVector) );
     288             : }
     289             : 
     290           0 : bool OConnectionLine::IsValid() const
     291             : {
     292           0 :     return m_pData.is();
     293             : }
     294             : 
     295           0 : double dist_Euklid(const Point &p1, const Point& p2,const Point& pM, Point& q)
     296             : {
     297           0 :     Point v(p2 - p1);
     298           0 :     Point w(pM - p1);
     299           0 :     double a = sqrt((double)(v.X()*v.X() + v.Y()*v.Y()));
     300           0 :     double l = (v.X() * w.Y() - v.Y() * w.X()) / a;
     301           0 :     double a2 = w.X()*v.X()+w.Y()*v.Y();
     302           0 :     a = a2 / (a * a);
     303           0 :     q.X() = long(p1.X() + a * v.X());
     304           0 :     q.Y() = long(p1.Y() + a * v.Y());
     305           0 :     return l;
     306             : }
     307             : 
     308           0 : bool OConnectionLine::CheckHit( const Point& rMousePos ) const
     309             : {
     310             :     /*
     311             :         course of action with HitTest:
     312             :         the distance is calculated according to Euklid.
     313             :     */
     314           0 :     Point q;
     315           0 :     double l = fabs(dist_Euklid(m_aSourceConnPos,m_aDestConnPos,rMousePos,q));
     316           0 :     if( l < HIT_SENSITIVE_RADIUS)
     317             :     {
     318           0 :         if(::std::min(m_aSourceConnPos.X(),m_aDestConnPos.X()) <= q.X() && ::std::min(m_aSourceConnPos.Y(),m_aDestConnPos.Y()) <= q.Y()
     319           0 :             && q.X() <= ::std::max(m_aDestConnPos.X(),m_aSourceConnPos.X())   && q.Y() <= ::std::max(m_aDestConnPos.Y(),m_aSourceConnPos.Y()))
     320           0 :             return true;
     321             :     }
     322             : 
     323           0 :     return false;
     324             : }
     325             : 
     326           0 : Rectangle OConnectionLine::GetSourceTextPos() const
     327             : {
     328           0 :     return GetTextPos(m_pTabConn->GetSourceWin(),m_aSourceConnPos,m_aSourceDescrLinePos);
     329             : }
     330             : 
     331           0 : Rectangle OConnectionLine::GetDestTextPos() const
     332             : {
     333           0 :     return GetTextPos(m_pTabConn->GetDestWin(),m_aDestConnPos,m_aDestDescrLinePos);
     334             : }
     335             : 
     336           0 : Point OConnectionLine::getMidPoint() const
     337             : {
     338           0 :     Point aDest = m_aDestConnPos - m_aSourceConnPos;
     339           0 :     aDest.X() /= 2;
     340           0 :     aDest.Y() /= 2;
     341             : 
     342           0 :     return m_aSourceConnPos + aDest;
     343          36 : }
     344             : 
     345             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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