dbaccess/source/ui/relationdesign/RTableConnection.cxx

   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 "RTableConnection.hxx"
  21 #include <RTableConnectionData.hxx>
  22 #include <RelationTableView.hxx>
  23 #include <vcl/svapp.hxx>
  24 #include <vcl/settings.hxx>
  25 #include <ConnectionLine.hxx>
  26
  27 using namespace dbaui;
  28 ORelationTableConnection::ORelationTableConnection( ORelationTableView* pContainer,
  29                                                    const TTableConnectionData::value_type& pTabConnData )
  30     :OTableConnection( pContainer, pTabConnData )
  31 {
  32 }
  33
  34 ORelationTableConnection::ORelationTableConnection( const ORelationTableConnection& rConn )
  35     : VclReferenceBase(), OTableConnection( rConn )
  36 {
  37     // no own members, thus the base class functionality is enough
  38 }
  39
  40 ORelationTableConnection& ORelationTableConnection::operator=( const ORelationTableConnection& rConn )
  41 {
  42     // this doesn't change anything, since the base class tests this, too and I don't have my own members to copy
  43     if (&rConn == this)
  44         return *this;
  45
  46     OTableConnection::operator=( rConn );
  47     return *this;
  48 }
  49
  50 void ORelationTableConnection::Draw(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect )
  51 {
  52     OTableConnection::Draw(rRenderContext, rRect);
  53     ORelationTableConnectionData* pData = static_cast< ORelationTableConnectionData* >(GetData().get());
  54     if (pData && (pData->GetCardinality() == Cardinality::Undefined))
  55         return;
  56
  57     // search lines for top line
  58     tools::Rectangle aBoundingRect;
  59     tools::Long nTop = GetBoundingRect().Bottom();
  60     tools::Long nTemp;
  61
  62     const OConnectionLine* pTopLine = nullptr;
  63     const std::vector<std::unique_ptr<OConnectionLine>>& rConnLineList = GetConnLineList();
  64
  65     for (auto const& elem : rConnLineList)
  66     {
  67         if( elem->IsValid() )
  68         {
  69             aBoundingRect = elem->GetBoundingRect();
  70             nTemp = aBoundingRect.Top();
  71             if(nTemp < nTop)
  72             {
  73                 nTop = nTemp;
  74                 pTopLine = elem.get();
  75             }
  76         }
  77     }
  78
  79     // cardinality
  80     if (!pTopLine)
  81         return;
  82
  83     tools::Rectangle aSourcePos = pTopLine->GetSourceTextPos();
  84     tools::Rectangle aDestPos = pTopLine->GetDestTextPos();
  85
  86     OUString aSourceText;
  87     OUString aDestText;
  88
  89     switch (pData->GetCardinality())
  90     {
  91     case Cardinality::OneMany:
  92         aSourceText = "1";
  93         aDestText   = "n";
  94         break;
  95
  96     case Cardinality::ManyOne:
  97         aSourceText = "n";
  98         aDestText   = "1";
  99         break;
 100
 101     case Cardinality::OneOne:
 102         aSourceText = "1";
 103         aDestText   = "1";
 104         break;
 105     default: break;
 106     }
 107
 108     if (IsSelected())
 109         rRenderContext.SetTextColor(Application::GetSettings().GetStyleSettings().GetHighlightColor());
 110     else
 111         rRenderContext.SetTextColor(Application::GetSettings().GetStyleSettings().GetWindowTextColor());
 112
 113     rRenderContext.DrawText(aSourcePos, aSourceText, DrawTextFlags::Clip | DrawTextFlags::Center | DrawTextFlags::Bottom);
 114     rRenderContext.DrawText(aDestPos, aDestText, DrawTextFlags::Clip | DrawTextFlags::Center | DrawTextFlags::Bottom);
 115 }
 116
 117 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */