346 lines
12 KiB
C++
346 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "ConnectionLine.hxx"
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#include "ConnectionLineData.hxx"
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#include "TableWindow.hxx"
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#include "TableWindowListBox.hxx"
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#include "TableConnection.hxx"
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#include <vcl/svapp.hxx>
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#include <math.h>
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#include <osl/diagnose.h>
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#include <vcl/lineinfo.hxx>
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#include <vcl/settings.hxx>
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using namespace dbaui;
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const long DESCRIPT_LINE_WIDTH = 15;
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const long HIT_SENSITIVE_RADIUS = 5;
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namespace
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{
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/** calcRect creates a new rectangle with the given points
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@param _rBase the base point
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@param _aVector the vector which will be added
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*/
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inline Rectangle calcRect(const Point& _rBase,const Point& _aVector)
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{
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return Rectangle( _rBase - _aVector, _rBase + _aVector );
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}
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/** GetTextPos calculate the rectangle for the connection to be drawn
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@param _pWin the table window where to draw it
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@param _aConnPos the connection point
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@param _aDescrLinePos the description line pos
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*/
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Rectangle GetTextPos(const OTableWindow* _pWin, const Point& _aConnPos,const Point& _aDescrLinePos)
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{
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OTableWindowListBox* pListBox = _pWin ? _pWin->GetListBox() : NULL;
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OSL_ENSURE(_pWin && pListBox, "OConnectionLine::GetSourceTextPos : invalid call !");
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Rectangle aReturn;
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if ( pListBox )
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{
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const long nRowHeight = pListBox->GetEntryHeight();
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aReturn.Top() = _aConnPos.Y() - nRowHeight;
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aReturn.Bottom() = aReturn.Top() + nRowHeight;
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if (_aDescrLinePos.X() < _aConnPos.X())
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{
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aReturn.Left() = _aDescrLinePos.X();
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aReturn.Right() = aReturn.Left() + _aConnPos.X() - _aDescrLinePos.X();
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}
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else
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{
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aReturn.Left() = _aConnPos.X();
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aReturn.Right() = aReturn.Left() + _aDescrLinePos.X() - _aConnPos.X();
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}
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}
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return aReturn;
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}
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/** calcPointsYValue calculate the points Y value in relation to the listbox entry
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@param _pWin the corresponding window
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@param _pEntry the source or dest entry
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@param _rNewConPos (in/out) the connection pos
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@param _rNewDescrPos (in/out) the description pos
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*/
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void calcPointsYValue(const OTableWindow* _pWin,SvTreeListEntry* _pEntry,Point& _rNewConPos,Point& _rNewDescrPos)
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{
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const OTableWindowListBox* pListBox = _pWin->GetListBox();
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_rNewConPos.Y() = _pWin->GetPosPixel().Y();
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if ( _pEntry )
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{
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const long nRowHeight = pListBox->GetEntryHeight();
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_rNewConPos.Y() += pListBox->GetPosPixel().Y();
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long nEntryPos = pListBox->GetEntryPosition( _pEntry ).Y();
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if( nEntryPos >= 0 )
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{
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_rNewConPos.Y() += nEntryPos;
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_rNewConPos.Y() += (long)( 0.5 * nRowHeight );
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}
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else
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_rNewConPos.Y() -= (long)( 0.5 * nRowHeight );
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long nListBoxBottom = _pWin->GetPosPixel().Y()
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+ pListBox->GetPosPixel().Y()
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+ pListBox->GetSizePixel().Height();
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if( _rNewConPos.Y() > nListBoxBottom )
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_rNewConPos.Y() = nListBoxBottom + 2;
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}
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else
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_rNewConPos.Y() += static_cast<sal_Int32>(pListBox->GetPosPixel().Y()*0.5);
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_rNewDescrPos.Y() = _rNewConPos.Y();
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}
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}
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// class OConnectionLine
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OConnectionLine::OConnectionLine( OTableConnection* _pConn, OConnectionLineDataRef _pLineData )
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: m_pTabConn( _pConn )
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, m_pData( _pLineData )
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{
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}
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OConnectionLine::OConnectionLine( const OConnectionLine& _rLine )
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: m_pTabConn(NULL)
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{
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m_pData = new OConnectionLineData( *_rLine.GetData() );
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*this = _rLine;
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}
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OConnectionLine::~OConnectionLine()
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{
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}
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OConnectionLine& OConnectionLine::operator=( const OConnectionLine& rLine )
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{
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if( &rLine != this )
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{
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// as the data does not belong to me, I don't delete the old one
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m_pData->CopyFrom(*rLine.GetData());
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// CopyFrom is virtual, therefore it is not a problem, if m_pData is of a type derived from OTableConnectionData
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m_pTabConn = rLine.m_pTabConn;
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m_aSourceConnPos = rLine.m_aSourceConnPos;
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m_aDestConnPos = rLine.m_aDestConnPos;
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m_aSourceDescrLinePos = rLine.m_aSourceDescrLinePos;
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m_aDestDescrLinePos = rLine.m_aDestDescrLinePos;
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}
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return *this;
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}
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Rectangle OConnectionLine::GetBoundingRect()
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{
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// determine surrounding rectangle
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Rectangle aBoundingRect( Point(0,0), Point(0,0) );
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if( !IsValid() )
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return aBoundingRect;
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Point aTopLeft;
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Point aBottomRight;
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if( m_aSourceDescrLinePos.Y() <= m_aDestDescrLinePos.Y() )
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{
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aTopLeft.Y() = m_aSourceDescrLinePos.Y();
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aBottomRight.Y() = m_aDestDescrLinePos.Y();
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}
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else
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{
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aTopLeft.Y() = m_aDestDescrLinePos.Y();
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aBottomRight.Y() = m_aSourceDescrLinePos.Y();
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}
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if( m_aSourceDescrLinePos.X() <= m_aDestDescrLinePos.X() )
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{
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aTopLeft.X() = m_aSourceDescrLinePos.X();
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aBottomRight.X() = m_aDestDescrLinePos.X();
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}
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else
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{
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aTopLeft.X() = m_aDestDescrLinePos.X();
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aBottomRight.X() = m_aSourceDescrLinePos.X();
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}
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const OTableWindow* pSourceWin = m_pTabConn->GetSourceWin();
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const OTableWindow* pDestWin = m_pTabConn->GetDestWin();
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// line proceeds in in z-Form
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if( pSourceWin == pDestWin || std::abs(m_aSourceConnPos.X() - m_aDestConnPos.X()) > std::abs(m_aSourceDescrLinePos.X() - m_aDestDescrLinePos.X()) )
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{
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aTopLeft.X() -= DESCRIPT_LINE_WIDTH;
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aBottomRight.X() += DESCRIPT_LINE_WIDTH;
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}
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aBoundingRect = Rectangle( aTopLeft-Point(2,17), aBottomRight+Point(2,2) );
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return aBoundingRect;
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}
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void calcPointX1(const OTableWindow* _pWin,Point& _rNewConPos,Point& _rNewDescrPos)
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{
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_rNewConPos.X() = _pWin->GetPosPixel().X() + _pWin->GetSizePixel().Width();
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_rNewDescrPos.X() = _rNewConPos.X();
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_rNewConPos.X() += DESCRIPT_LINE_WIDTH;
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}
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void calcPointX2(const OTableWindow* _pWin,Point& _rNewConPos,Point& _rNewDescrPos)
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{
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_rNewConPos.X() = _pWin->GetPosPixel().X();
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_rNewDescrPos.X() = _rNewConPos.X();
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_rNewConPos.X() -= DESCRIPT_LINE_WIDTH;
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}
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bool OConnectionLine::RecalcLine()
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{
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// Windows and entries must be set
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const OTableWindow* pSourceWin = m_pTabConn->GetSourceWin();
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const OTableWindow* pDestWin = m_pTabConn->GetDestWin();
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if( !pSourceWin || !pDestWin )
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return false;
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SvTreeListEntry* pSourceEntry = pSourceWin->GetListBox()->GetEntryFromText( GetData()->GetSourceFieldName() );
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SvTreeListEntry* pDestEntry = pDestWin->GetListBox()->GetEntryFromText( GetData()->GetDestFieldName() );
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// determine X-coordinates
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Point aSourceCenter( 0, 0 );
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Point aDestCenter( 0, 0 );
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aSourceCenter.X() = pSourceWin->GetPosPixel().X() + (long)( 0.5*pSourceWin->GetSizePixel().Width() );
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aDestCenter.X() = pDestWin->GetPosPixel().X() + (long)( 0.5*pDestWin->GetSizePixel().Width() );
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const OTableWindow* pFirstWin = pDestWin;
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const OTableWindow* pSecondWin = pSourceWin;
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Point* pFirstConPos = &m_aDestConnPos;
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Point* pFirstDescrPos = &m_aDestDescrLinePos;
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Point* pSecondConPos = &m_aSourceConnPos;
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Point* pSecondDescrPos = &m_aSourceDescrLinePos;
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if( aDestCenter.X() > aSourceCenter.X() )
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{
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pFirstWin = pSourceWin;
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pSecondWin = pDestWin;
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pFirstConPos = &m_aSourceConnPos;
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pFirstDescrPos = &m_aSourceDescrLinePos;
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pSecondConPos = &m_aDestConnPos;
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pSecondDescrPos = &m_aDestDescrLinePos;
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}
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if ( pFirstWin == pSecondWin && pSourceEntry != pDestEntry )
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calcPointX2(pFirstWin,*pFirstConPos,*pFirstDescrPos);
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else
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calcPointX1(pFirstWin,*pFirstConPos,*pFirstDescrPos);
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calcPointX2(pSecondWin,*pSecondConPos,*pSecondDescrPos);
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// determine aSourceConnPosY
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calcPointsYValue(pSourceWin,pSourceEntry,m_aSourceConnPos,m_aSourceDescrLinePos);
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// determine aDestConnPosY
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calcPointsYValue(pDestWin,pDestEntry,m_aDestConnPos,m_aDestDescrLinePos);
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return true;
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}
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void OConnectionLine::Draw( OutputDevice* pOutDev )
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{
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const sal_uInt16 nRectSize = 3;
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// calculate new dimension
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if( !RecalcLine() )
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return;
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// draw lines
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if (m_pTabConn->IsSelected())
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pOutDev->SetLineColor(Application::GetSettings().GetStyleSettings().GetHighlightColor());
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else
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pOutDev->SetLineColor(Application::GetSettings().GetStyleSettings().GetWindowTextColor());
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LineInfo aLineInfo;
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if ( m_pTabConn->IsSelected() )
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aLineInfo.SetWidth(3);
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Polygon aPoly;
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aPoly.Insert(0,m_aSourceDescrLinePos);
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aPoly.Insert(1,m_aSourceConnPos);
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aPoly.Insert(2,m_aDestConnPos);
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aPoly.Insert(3,m_aDestDescrLinePos);
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pOutDev->DrawPolyLine(aPoly,aLineInfo);
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// draw the connection rectangles
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pOutDev->SetFillColor(Application::GetSettings().GetStyleSettings().GetWindowColor());
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Point aVector(nRectSize,nRectSize);
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pOutDev->DrawRect( calcRect(m_aSourceDescrLinePos,aVector) );
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pOutDev->DrawRect( calcRect( m_aDestDescrLinePos,aVector) );
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}
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bool OConnectionLine::IsValid() const
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{
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return m_pData.is();
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}
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double dist_Euklid(const Point &p1, const Point& p2,const Point& pM, Point& q)
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{
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Point v(p2 - p1);
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Point w(pM - p1);
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double a = sqrt((double)(v.X()*v.X() + v.Y()*v.Y()));
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double l = (v.X() * w.Y() - v.Y() * w.X()) / a;
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double a2 = w.X()*v.X()+w.Y()*v.Y();
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a = a2 / (a * a);
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q.X() = long(p1.X() + a * v.X());
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q.Y() = long(p1.Y() + a * v.Y());
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return l;
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}
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bool OConnectionLine::CheckHit( const Point& rMousePos ) const
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{
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/*
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course of action with HitTest:
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the distance is calculated according to Euklid.
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*/
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Point q;
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double l = fabs(dist_Euklid(m_aSourceConnPos,m_aDestConnPos,rMousePos,q));
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if( l < HIT_SENSITIVE_RADIUS)
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{
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if(::std::min(m_aSourceConnPos.X(),m_aDestConnPos.X()) <= q.X() && ::std::min(m_aSourceConnPos.Y(),m_aDestConnPos.Y()) <= q.Y()
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&& q.X() <= ::std::max(m_aDestConnPos.X(),m_aSourceConnPos.X()) && q.Y() <= ::std::max(m_aDestConnPos.Y(),m_aSourceConnPos.Y()))
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return true;
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}
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return false;
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}
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Rectangle OConnectionLine::GetSourceTextPos() const
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{
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return GetTextPos(m_pTabConn->GetSourceWin(),m_aSourceConnPos,m_aSourceDescrLinePos);
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}
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Rectangle OConnectionLine::GetDestTextPos() const
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{
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return GetTextPos(m_pTabConn->GetDestWin(),m_aDestConnPos,m_aDestDescrLinePos);
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}
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Point OConnectionLine::getMidPoint() const
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{
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Point aDest = m_aDestConnPos - m_aSourceConnPos;
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aDest.X() /= 2;
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aDest.Y() /= 2;
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return m_aSourceConnPos + aDest;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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