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libreoffice/dbaccess/source/ui/querydesign/ConnectionLine.cxx
Jens-Heiner Rechtien 1d540cd38a INTEGRATION: CWS warnings01 (1.9.6); FILE MERGED 
2006/03/24 15:36:24 fs 1.9.6.1: #i57457# warning-free code (unxlngi6/.pro + unxsoli4.pro)
2006-06-20 02:24:53 +00:00

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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: ConnectionLine.cxx,v $
*
* $Revision: 1.10 $
*
* last change: $Author: hr $ $Date: 2006-06-20 03:24:53 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
#ifndef DBAUI_CONNECTIONLINE_HXX
#include "ConnectionLine.hxx"
#endif
#ifndef DBAUI_CONNECTIONLINEDATA_HXX
#include "ConnectionLineData.hxx"
#endif
#ifndef DBAUI_TABLEWINDOW_HXX
#include "TableWindow.hxx"
#endif
#ifndef DBAUI_TABLEWINDOWLISTBOX_HXX
#include "TableWindowListBox.hxx"
#endif
#ifndef DBAUI_TABLECONNECTION_HXX
#include "TableConnection.hxx"
#endif
#ifndef _SV_SVAPP_HXX
#include <vcl/svapp.hxx>
#endif
#ifndef _INC_MATH
#include <math.h>
#endif
#ifndef _TOOLS_DEBUG_HXX
#include <tools/debug.hxx>
#endif
using namespace dbaui;
const long DESCRIPT_LINE_WIDTH = 15;
const long HIT_SENSITIVE_RADIUS = 5;
namespace
{
/** calcRect creates a new rectangle with the given points
@param _rBase the base point
@param _aVector the vector which will be added
*/
inline Rectangle calcRect(const Point& _rBase,const Point& _aVector)
{
return Rectangle( _rBase - _aVector, _rBase + _aVector );
}
// -----------------------------------------------------------------------------
/** GetTextPos calculate the rectangle for the connection to be drawn
@param _pWin the table window where to draw it
@param _aConnPos the connection point
@param _aDescrLinePos the description line pos
*/
Rectangle GetTextPos(const OTableWindow* _pWin, const Point& _aConnPos,const Point& _aDescrLinePos)
{
OTableWindowListBox* pListBox = _pWin ? _pWin->GetListBox() : NULL;
DBG_ASSERT(_pWin && pListBox, "OConnectionLine::GetSourceTextPos : invalid call !");
Rectangle aReturn;
if ( pListBox )
{
long nRowHeight = pListBox->GetEntryHeight();
aReturn.Top() = _aConnPos.Y() - nRowHeight;
aReturn.Bottom() = aReturn.Top() + nRowHeight;
if (_aDescrLinePos.X() < _aConnPos.X())
{
aReturn.Left() = _aDescrLinePos.X();
aReturn.Right() = aReturn.Left() + _aConnPos.X() - _aDescrLinePos.X();
}
else
{
aReturn.Left() = _aConnPos.X();
aReturn.Right() = aReturn.Left() + _aDescrLinePos.X() - _aConnPos.X();
}
}
return aReturn;
}
// -----------------------------------------------------------------------------
/** calcPointsYValue calculate the points Y value in relation to the listbox entry
@param _pWin the corresponding window
@param _pEntry the source or dest entry
@param _rNewConPos (in/out) the connection pos
@param _rNewDescrPos (in/out) the description pos
*/
void calcPointsYValue(const OTableWindow* _pWin,SvLBoxEntry* _pEntry,Point& _rNewConPos,Point& _rNewDescrPos)
{
const OTableWindowListBox* pListBox = _pWin->GetListBox();
long nRowHeight = pListBox->GetEntryHeight();
_rNewConPos.Y() = _pWin->GetPosPixel().Y();
_rNewConPos.Y() += pListBox->GetPosPixel().Y();
long nEntryPos = pListBox->GetEntryPosition( _pEntry ).Y();
if( nEntryPos >= 0 )
{
_rNewConPos.Y() += nEntryPos;
_rNewConPos.Y() += (long)( 0.5 * nRowHeight );
}
else
_rNewConPos.Y() -= (long)( 0.5 * nRowHeight );
long nListBoxBottom = _pWin->GetPosPixel().Y()
+ pListBox->GetPosPixel().Y()
+ pListBox->GetSizePixel().Height();
if( _rNewConPos.Y() > nListBoxBottom )
_rNewConPos.Y() = nListBoxBottom + 2;
_rNewDescrPos.Y() = _rNewConPos.Y();
}
// -----------------------------------------------------------------------------
}
//========================================================================
// class OConnectionLine
//========================================================================
DBG_NAME(OConnectionLine)
//------------------------------------------------------------------------
OConnectionLine::OConnectionLine( OTableConnection* _pConn, OConnectionLineDataRef _pLineData )
: m_pTabConn( _pConn )
,m_pData( _pLineData )
,m_pSourceEntry( NULL )
,m_pDestEntry( NULL )
{
DBG_CTOR(OConnectionLine,NULL);
}
//------------------------------------------------------------------------
OConnectionLine::OConnectionLine( OTableConnection* _pConn, const String& _rSourceFieldName,
const String& _rDestFieldName )
:m_pTabConn( _pConn )
,m_pData(NULL)
,m_pSourceEntry( NULL )
,m_pDestEntry( NULL )
{
DBG_CTOR(OConnectionLine,NULL);
m_pData = new OConnectionLineData( _rSourceFieldName,_rDestFieldName);
}
//------------------------------------------------------------------------
OConnectionLine::OConnectionLine( const OConnectionLine& _rLine )
{
DBG_CTOR(OConnectionLine,NULL);
m_pData = new OConnectionLineData( *_rLine.GetData() );
*this = _rLine;
}
//------------------------------------------------------------------------
OConnectionLine::~OConnectionLine()
{
DBG_DTOR(OConnectionLine,NULL);
}
//------------------------------------------------------------------------
void OConnectionLine::SetSourceFieldName( const String& rSourceFieldName )
{
m_pData->SetSourceFieldName( rSourceFieldName );
}
//------------------------------------------------------------------------
void OConnectionLine::SetDestFieldName( const String& rDestFieldName )
{
m_pData->SetDestFieldName( rDestFieldName );
}
//------------------------------------------------------------------------
OConnectionLine& OConnectionLine::operator=( const OConnectionLine& rLine )
{
if( &rLine != this )
{
// da mir die Daten nicht gehoeren, loesche ich die alten nicht
m_pData->CopyFrom(*rLine.GetData());
// CopyFrom ist virtuell, damit ist es kein Problem, wenn m_pData von einem von OTableConnectionData abgeleiteten Typ ist
m_pTabConn = rLine.m_pTabConn;
m_pSourceEntry = rLine.m_pSourceEntry;
m_pDestEntry = rLine.m_pDestEntry;
m_aSourceConnPos = rLine.m_aSourceConnPos;
m_aDestConnPos = rLine.m_aDestConnPos;
m_aSourceDescrLinePos = rLine.m_aSourceDescrLinePos;
m_aDestDescrLinePos = rLine.m_aDestDescrLinePos;
}
return *this;
}
//------------------------------------------------------------------------
BOOL OConnectionLine::Connect( const String& rSourceFieldName, const String& rDestFieldName )
{
//////////////////////////////////////////////////////////////////////
// Parameter duerfen nicht leer sein
if( !rSourceFieldName.Len() || !rDestFieldName.Len() )
return FALSE;
//////////////////////////////////////////////////////////////////////
// Feldnamen setzen
m_pData->SetSourceFieldName( rSourceFieldName );
m_pData->SetDestFieldName( rDestFieldName );
return TRUE;
}
//------------------------------------------------------------------------
Rectangle OConnectionLine::GetBoundingRect()
{
//////////////////////////////////////////////////////////////////////
// Umgebendes Rechteck bestimmen
Rectangle aBoundingRect( Point(0,0), Point(0,0) );
if( !IsValid() )
return aBoundingRect;
Point aTopLeft;
Point aBottomRight;
if( m_aSourceDescrLinePos.Y() <= m_aDestDescrLinePos.Y() )
{
aTopLeft.Y() = m_aSourceDescrLinePos.Y();
aBottomRight.Y() = m_aDestDescrLinePos.Y();
}
else
{
aTopLeft.Y() = m_aDestDescrLinePos.Y();
aBottomRight.Y() = m_aSourceDescrLinePos.Y();
}
if( m_aSourceDescrLinePos.X() <= m_aDestDescrLinePos.X() )
{
aTopLeft.X() = m_aSourceDescrLinePos.X();
aBottomRight.X() = m_aDestDescrLinePos.X();
}
else
{
aTopLeft.X() = m_aDestDescrLinePos.X();
aBottomRight.X() = m_aSourceDescrLinePos.X();
}
//////////////////////////////////////////////////////////////////////
// Linie verlaeuft in z-Form
if( Abs(m_aSourceConnPos.X() - m_aDestConnPos.X()) > Abs(m_aSourceDescrLinePos.X() - m_aDestDescrLinePos.X()) )
{
aTopLeft.X() -= DESCRIPT_LINE_WIDTH;
aBottomRight.X() += DESCRIPT_LINE_WIDTH;
}
aBoundingRect = Rectangle( aTopLeft-Point(0,17), aBottomRight+Point(0,2) );
return aBoundingRect;
}
// -----------------------------------------------------------------------------
void calcPointX1(const OTableWindow* _pWin,Point& _rNewConPos,Point& _rNewDescrPos)
{
_rNewConPos.X() = _pWin->GetPosPixel().X() + _pWin->GetSizePixel().Width();
_rNewDescrPos.X() = _rNewConPos.X();
_rNewConPos.X() += DESCRIPT_LINE_WIDTH;
}
// -----------------------------------------------------------------------------
void calcPointX2(const OTableWindow* _pWin,Point& _rNewConPos,Point& _rNewDescrPos)
{
_rNewConPos.X() = _pWin->GetPosPixel().X();
_rNewDescrPos.X() = _rNewConPos.X();
_rNewConPos.X() -= DESCRIPT_LINE_WIDTH;
}
//------------------------------------------------------------------------
BOOL OConnectionLine::RecalcLine()
{
//////////////////////////////////////////////////////////////////////
// Fenster und Entries muessen gesetzt sein
const OTableWindow* pSourceWin = m_pTabConn->GetSourceWin();
const OTableWindow* pDestWin = m_pTabConn->GetDestWin();
if( !pSourceWin || !pDestWin )
return FALSE;
m_pSourceEntry = pSourceWin->GetListBox()->GetEntryFromText( GetData()->GetSourceFieldName() );
m_pDestEntry = pDestWin->GetListBox()->GetEntryFromText( GetData()->GetDestFieldName() );
if( !m_pSourceEntry || !m_pDestEntry )
return FALSE;
//////////////////////////////////////////////////////////////////////
// X-Koordinaten bestimmen
Point aSourceCenter( 0, 0 );
Point aDestCenter( 0, 0 );
aSourceCenter.X() = pSourceWin->GetPosPixel().X() + (long)( 0.5*pSourceWin->GetSizePixel().Width() );
aDestCenter.X() = pDestWin->GetPosPixel().X() + (long)( 0.5*pDestWin->GetSizePixel().Width() );
const OTableWindow* pFirstWin = pDestWin;
const OTableWindow* pSecondWin = pSourceWin;
Point* pFirstConPos = &m_aDestConnPos;
Point* pFirstDescrPos = &m_aDestDescrLinePos;
Point* pSecondConPos = &m_aSourceConnPos;
Point* pSecondDescrPos = &m_aSourceDescrLinePos;
if( aDestCenter.X() > aSourceCenter.X() )
{
pFirstWin = pSourceWin;
pSecondWin = pDestWin;
pFirstConPos = &m_aSourceConnPos;
pFirstDescrPos = &m_aSourceDescrLinePos;
pSecondConPos = &m_aDestConnPos;
pSecondDescrPos = &m_aDestDescrLinePos;
}
calcPointX1(pFirstWin,*pFirstConPos,*pFirstDescrPos);
calcPointX2(pSecondWin,*pSecondConPos,*pSecondDescrPos);
//////////////////////////////////////////////////////////////////////
// aSourceConnPosY bestimmen
calcPointsYValue(pSourceWin,m_pSourceEntry,m_aSourceConnPos,m_aSourceDescrLinePos);
//////////////////////////////////////////////////////////////////////
// aDestConnPosY bestimmen
calcPointsYValue(pDestWin,m_pDestEntry,m_aDestConnPos,m_aDestDescrLinePos);
return TRUE;
}
// -----------------------------------------------------------------------------
//------------------------------------------------------------------------
void OConnectionLine::Draw( OutputDevice* pOutDev )
{
const UINT16 nRectSize = 3;
//////////////////////////////////////////////////////////////////////
// Neue Dimensionen berechnen
if( !RecalcLine() )
return;
//////////////////////////////////////////////////////////////////////
// Zeichnen der Linien
if (m_pTabConn->IsSelected())
pOutDev->SetLineColor(Application::GetSettings().GetStyleSettings().GetHighlightColor());
else
pOutDev->SetLineColor(Application::GetSettings().GetStyleSettings().GetWindowTextColor());
pOutDev->DrawLine( m_aSourceDescrLinePos, m_aSourceConnPos );
pOutDev->DrawLine( m_aDestDescrLinePos, m_aDestConnPos );
pOutDev->DrawLine( m_aSourceConnPos, m_aDestConnPos );
// wenn die Linie selektiert ist, sollte sie dicker erscheinen
// da OutputDevice nach meinem Wissen (das ich nur aus dem Headerfile habe) kein
// SetLineWidth (o.<2E>.) hat, ein Fake
if (m_pTabConn->IsSelected())
{
UINT16 xOffset, yOffset;
if (abs(m_aSourceConnPos.Y() - m_aDestConnPos.Y()) > abs(m_aSourceConnPos.X()-m_aDestConnPos.X()))
{
xOffset = 1;
yOffset = 0;
} else
{
xOffset = 0;
yOffset = 1;
}
Point aPos1(-xOffset, -yOffset);
Point aPos2(xOffset, yOffset);
pOutDev->DrawLine(m_aSourceConnPos + aPos1, m_aDestConnPos + aPos1);
pOutDev->DrawLine(m_aSourceConnPos + aPos2, m_aDestConnPos + aPos2);
}
//////////////////////////////////////////////////////////////////////
// draw the connection rectangles
pOutDev->SetFillColor(Application::GetSettings().GetStyleSettings().GetWindowColor());
Point aVector(nRectSize,nRectSize);
pOutDev->DrawRect( calcRect(m_aSourceDescrLinePos,aVector) );
pOutDev->DrawRect( calcRect( m_aDestDescrLinePos,aVector) );
}
// -----------------------------------------------------------------------------
BOOL OConnectionLine::IsValid() const
{
return m_pData.isValid() && m_pData->IsValid();
}
//------------------------------------------------------------------------
double dist_Euklid(const Point &p1, const Point& p2,const Point& pM, Point& q)
{
Point v(p2 - p1);
Point w(pM - p1);
double a = sqrt((double)(v.X()*v.X() + v.Y()*v.Y()));
double l = (v.X() * w.Y() - v.Y() * w.X()) / a;
double a2 = w.X()*v.X()+w.Y()*v.Y();
a = a2 / (a * a);
q.X() = long(p1.X() + a * v.X());
q.Y() = long(p1.Y() + a * v.Y());
return l;
}
//------------------------------------------------------------------------
bool OConnectionLine::CheckHit( const Point& rMousePos ) const
{
//////////////////////////////////////////////////////////////////////
/*
Vorgehensweise beim HitTest:
Es wird der Abstand nach Euklid berechnet.
*/
Point q;
double l = fabs(dist_Euklid(m_aSourceConnPos,m_aDestConnPos,rMousePos,q));
if( l < HIT_SENSITIVE_RADIUS)
{
if(::std::min(m_aSourceConnPos.X(),m_aDestConnPos.X()) <= q.X() && ::std::min(m_aSourceConnPos.Y(),m_aDestConnPos.Y()) <= q.Y()
&& q.X() <= ::std::max(m_aDestConnPos.X(),m_aSourceConnPos.X()) && q.Y() <= ::std::max(m_aDestConnPos.Y(),m_aSourceConnPos.Y()))
return true;
}
return false;
}
// -----------------------------------------------------------------------------
Rectangle OConnectionLine::GetSourceTextPos() const
{
return GetTextPos(m_pTabConn->GetSourceWin(),m_aSourceConnPos,m_aSourceDescrLinePos);
}
// -----------------------------------------------------------------------------
Rectangle OConnectionLine::GetDestTextPos() const
{
return GetTextPos(m_pTabConn->GetDestWin(),m_aDestConnPos,m_aDestDescrLinePos);
}
// -----------------------------------------------------------------------------
Point OConnectionLine::getMidPoint() const
{
Point aDest = m_aDestConnPos - m_aSourceConnPos;
aDest.X() /= 2;
aDest.Y() /= 2;
return m_aSourceConnPos + aDest;
}
// -----------------------------------------------------------------------------
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