svx/source/sdr/misc/ImageMapInfo.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 <svx/ImageMapInfo.hxx>
  21
  22 #include <svx/svdobj.hxx>
  23 #include <svx/svdograf.hxx>
  24 #include <svx/svdoole2.hxx>
  25 #include <svx/unoshape.hxx>
  26 #include <vcl/imapobj.hxx>
  27 #include <vcl/svapp.hxx>
  28 #include <vcl/window.hxx>
  29
  30 SvxIMapInfo* SvxIMapInfo::GetIMapInfo(SdrObject const* pObject)
  31 {
  32     assert(pObject);
  33
  34     SvxIMapInfo* pIMapInfo = nullptr;
  35     sal_uInt16 nCount = pObject->GetUserDataCount();
  36
  37     // Can we find IMap information within the user data?
  38     for (sal_uInt16 i = 0; i < nCount; i++)
  39     {
  40         SdrObjUserData* pUserData = pObject->GetUserData(i);
  41
  42         if ((pUserData->GetInventor() == SdrInventor::StarDrawUserData)
  43             && (pUserData->GetId() == SVX_IMAPINFO_ID))
  44             pIMapInfo = static_cast<SvxIMapInfo*>(pUserData);
  45     }
  46
  47     return pIMapInfo;
  48 }
  49
  50 IMapObject* SvxIMapInfo::GetHitIMapObject(const SdrObject* pObj, const Point& rWinPoint,
  51                                           const vcl::Window* rCmpWnd)
  52 {
  53     SvxIMapInfo* pIMapInfo = GetIMapInfo(pObj);
  54     IMapObject* pIMapObj = nullptr;
  55
  56     if (pIMapInfo)
  57     {
  58         const MapMode aMap100(MapUnit::Map100thMM);
  59         Size aGraphSize;
  60         Point aRelPoint(rWinPoint);
  61         ImageMap& rImageMap = const_cast<ImageMap&>(pIMapInfo->GetImageMap());
  62         tools::Rectangle& rRect = const_cast<tools::Rectangle&>(pObj->GetLogicRect());
  63
  64         if (rCmpWnd)
  65         {
  66             MapMode aWndMode = rCmpWnd->GetMapMode();
  67             aRelPoint = rCmpWnd->LogicToLogic(rWinPoint, &aWndMode, &aMap100);
  68             rRect = rCmpWnd->LogicToLogic(pObj->GetLogicRect(), &aWndMode, &aMap100);
  69         }
  70
  71         bool bObjSupported = false;
  72
  73         // execute HitTest
  74         if (auto pGrafObj = dynamic_cast<const SdrGrafObj*>(pObj)) // simple graphics object
  75         {
  76             const GeoStat& rGeo = pGrafObj->GetGeoStat();
  77             std::unique_ptr<SdrGrafObjGeoData> pGeoData(
  78                 static_cast<SdrGrafObjGeoData*>(pGrafObj->GetGeoData()));
  79
  80             // Undo rotation
  81             if (rGeo.nRotationAngle)
  82                 RotatePoint(aRelPoint, rRect.TopLeft(), -rGeo.nSin, rGeo.nCos);
  83
  84             // Undo mirroring
  85             if (pGeoData->bMirrored)
  86                 aRelPoint.setX(rRect.Right() + rRect.Left() - aRelPoint.X());
  87
  88             // Undo shearing
  89             if (rGeo.nShearAngle)
  90                 ShearPoint(aRelPoint, rRect.TopLeft(), -rGeo.nTan);
  91
  92             if (pGrafObj->GetGrafPrefMapMode().GetMapUnit() == MapUnit::MapPixel)
  93                 aGraphSize = Application::GetDefaultDevice()->PixelToLogic(
  94                     pGrafObj->GetGrafPrefSize(), aMap100);
  95             else
  96                 aGraphSize = OutputDevice::LogicToLogic(pGrafObj->GetGrafPrefSize(),
  97                                                         pGrafObj->GetGrafPrefMapMode(), aMap100);
  98
  99             bObjSupported = true;
 100         }
 101         else if (auto pOleObj = dynamic_cast<const SdrOle2Obj*>(pObj)) // OLE object
 102         {
 103             aGraphSize = pOleObj->GetOrigObjSize();
 104             bObjSupported = true;
 105         }
 106
 107         // Everything worked out well, thus execute HitTest
 108         if (bObjSupported)
 109         {
 110             // Calculate relative position of mouse cursor
 111             aRelPoint -= rRect.TopLeft();
 112             pIMapObj = rImageMap.GetHitIMapObject(aGraphSize, rRect.GetSize(), aRelPoint);
 113
 114             // We don't care about deactivated objects
 115             if (pIMapObj && !pIMapObj->IsActive())
 116                 pIMapObj = nullptr;
 117         }
 118     }
 119
 120     return pIMapObj;
 121 }