svx/source/dialog/connctrl.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 <vcl/svapp.hxx>
  21
  22 #include <svx/connctrl.hxx>
  23 #include <svx/dlgutil.hxx>
  24
  25 #include <svx/sdr/contact/displayinfo.hxx>
  26 #include <sdr/contact/objectcontactofobjlistpainter.hxx>
  27 #include <svx/svdmark.hxx>
  28 #include <svx/svdoedge.hxx>
  29 #include <svx/svdpage.hxx>
  30 #include <svx/svdview.hxx>
  31 #include <svx/sxelditm.hxx>
  32
  33 #include <vcl/settings.hxx>
  34 #include <memory>
  35
  36 SvxXConnectionPreview::SvxXConnectionPreview()
  37     : pView(nullptr)
  38 {
  39     SetMapMode(MapMode(MapUnit::Map100thMM));
  40 }
  41
  42 void SvxXConnectionPreview::SetDrawingArea(weld::DrawingArea* pDrawingArea)
  43 {
  44     weld::CustomWidgetController::SetDrawingArea(pDrawingArea);
  45     Size aSize(pDrawingArea->get_ref_device().LogicToPixel(Size(118 , 121), MapMode(MapUnit::MapAppFont)));
  46     pDrawingArea->set_size_request(aSize.Width(), aSize.Height());
  47     SetOutputSizePixel(aSize);
  48 }
  49
  50 SvxXConnectionPreview::~SvxXConnectionPreview()
  51 {
  52 }
  53
  54 void SvxXConnectionPreview::Resize()
  55 {
  56     AdaptSize();
  57
  58     Invalidate();
  59 }
  60
  61 void SvxXConnectionPreview::AdaptSize()
  62 {
  63     // Adapt size
  64     if( !mxSdrPage )
  65         return;
  66
  67     SetMapMode(MapMode(MapUnit::Map100thMM));
  68
  69     OutputDevice* pOD = pView->GetFirstOutputDevice(); // GetWin( 0 );
  70     tools::Rectangle aRect = mxSdrPage->GetAllObjBoundRect();
  71
  72     MapMode aMapMode = GetMapMode();
  73     aMapMode.SetMapUnit( pOD->GetMapMode().GetMapUnit() );
  74     SetMapMode( aMapMode );
  75
  76     MapMode         aDisplayMap( aMapMode );
  77     Point           aNewPos;
  78     Size            aNewSize;
  79     const Size      aWinSize = GetDrawingArea()->get_ref_device().PixelToLogic(GetOutputSizePixel(), aDisplayMap);
  80     const tools::Long      nWidth = aWinSize.Width();
  81     const tools::Long      nHeight = aWinSize.Height();
  82     if (aRect.GetHeight() == 0)
  83         return;
  84     double          fRectWH = static_cast<double>(aRect.GetWidth()) / aRect.GetHeight();
  85     if (nHeight == 0)
  86         return;
  87     double          fWinWH = static_cast<double>(nWidth) / nHeight;
  88
  89     // Adapt bitmap to Thumb size (not here!)
  90     if ( fRectWH < fWinWH)
  91     {
  92         aNewSize.setWidth( static_cast<tools::Long>( static_cast<double>(nHeight) * fRectWH ) );
  93         aNewSize.setHeight( nHeight );
  94     }
  95     else
  96     {
  97         aNewSize.setWidth( nWidth );
  98         aNewSize.setHeight( static_cast<tools::Long>( static_cast<double>(nWidth) / fRectWH ) );
  99     }
 100
 101     Fraction aFrac1( aWinSize.Width(), aRect.GetWidth() );
 102     Fraction aFrac2( aWinSize.Height(), aRect.GetHeight() );
 103     Fraction aMinFrac( aFrac1 <= aFrac2 ? aFrac1 : aFrac2 );
 104
 105     // Implement MapMode
 106     aDisplayMap.SetScaleX( aMinFrac );
 107     aDisplayMap.SetScaleY( aMinFrac );
 108
 109     // Centering
 110     aNewPos.setX( ( nWidth - aNewSize.Width() )  >> 1 );
 111     aNewPos.setY( ( nHeight - aNewSize.Height() ) >> 1 );
 112
 113     aDisplayMap.SetOrigin(OutputDevice::LogicToLogic(aNewPos, aMapMode, aDisplayMap));
 114     SetMapMode( aDisplayMap );
 115
 116     // Origin
 117     aNewPos = aDisplayMap.GetOrigin();
 118     aNewPos -= Point( aRect.Left(), aRect.Top() );
 119     aDisplayMap.SetOrigin( aNewPos );
 120     SetMapMode( aDisplayMap );
 121
 122     MouseEvent aMEvt( Point(), 1, MouseEventModifiers::NONE, MOUSE_RIGHT );
 123     MouseButtonDown( aMEvt );
 124 }
 125
 126 void SvxXConnectionPreview::Construct()
 127 {
 128     DBG_ASSERT( pView, "No valid view is passed on! ");
 129
 130     const SdrMarkList& rMarkList = pView->GetMarkedObjectList();
 131     const size_t nMarkCount = rMarkList.GetMarkCount();
 132
 133     if( nMarkCount >= 1 )
 134     {
 135         bool bFound = false;
 136
 137         for( size_t i = 0; i < nMarkCount && !bFound; ++i )
 138         {
 139             const SdrObject* pObj = rMarkList.GetMark( i )->GetMarkedSdrObj();
 140             SdrInventor nInv = pObj->GetObjInventor();
 141             SdrObjKind nId = pObj->GetObjIdentifier();
 142             if( nInv == SdrInventor::Default && nId == SdrObjKind::Edge )
 143             {
 144                 bFound = true;
 145
 146                 // potential memory leak here (!). Create SdrObjList only when there is
 147                 // not yet one.
 148                 if(!mxSdrPage)
 149                 {
 150                     mxSdrPage = new SdrPage(
 151                         pView->getSdrModelFromSdrView(),
 152                         false);
 153                 }
 154
 155                 const SdrEdgeObj* pTmpEdgeObj = static_cast<const SdrEdgeObj*>(pObj);
 156                 pEdgeObj = SdrObject::Clone(*pTmpEdgeObj, mxSdrPage->getSdrModelFromSdrPage());
 157
 158                 SdrObjConnection& rConn1 = pEdgeObj->GetConnection( true );
 159                 SdrObjConnection& rConn2 = pEdgeObj->GetConnection( false );
 160
 161                 rConn1 = pTmpEdgeObj->GetConnection( true );
 162                 rConn2 = pTmpEdgeObj->GetConnection( false );
 163
 164                 SdrObject* pTmpObj1 = pTmpEdgeObj->GetConnectedNode( true );
 165                 SdrObject* pTmpObj2 = pTmpEdgeObj->GetConnectedNode( false );
 166
 167                 if( pTmpObj1 )
 168                 {
 169                     rtl::Reference<SdrObject> pObj1 = pTmpObj1->CloneSdrObject(mxSdrPage->getSdrModelFromSdrPage());
 170                     mxSdrPage->InsertObject( pObj1.get() );
 171                     pEdgeObj->ConnectToNode( true, pObj1.get() );
 172                 }
 173
 174                 if( pTmpObj2 )
 175                 {
 176                     rtl::Reference<SdrObject> pObj2 = pTmpObj2->CloneSdrObject(mxSdrPage->getSdrModelFromSdrPage());
 177                     mxSdrPage->InsertObject( pObj2.get() );
 178                     pEdgeObj->ConnectToNode( false, pObj2.get() );
 179                 }
 180
 181                 mxSdrPage->InsertObject( pEdgeObj.get() );
 182             }
 183         }
 184     }
 185
 186     if( !pEdgeObj )
 187     {
 188         pEdgeObj = new SdrEdgeObj(pView->getSdrModelFromSdrView());
 189     }
 190
 191     AdaptSize();
 192 }
 193
 194 void SvxXConnectionPreview::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&)
 195 {
 196     rRenderContext.Push(vcl::PushFlags::ALL);
 197
 198     rRenderContext.SetMapMode(GetMapMode());
 199
 200     const StyleSettings& rStyles = Application::GetSettings().GetStyleSettings();
 201     rRenderContext.SetDrawMode(rStyles.GetHighContrastMode() ? OUTPUT_DRAWMODE_CONTRAST : OUTPUT_DRAWMODE_COLOR);
 202     rRenderContext.SetBackground(Wallpaper(rStyles.GetFieldColor()));
 203
 204     if (mxSdrPage)
 205     {
 206         // This will not work anymore. To not start at Adam and Eve, i will
 207         // ATM not try to change all this stuff to really using an own model
 208         // and a view. I will just try to provide a mechanism to paint such
 209         // objects without own model and without a page/view with the new
 210         // mechanism.
 211
 212         // New stuff: Use an ObjectContactOfObjListPainter.
 213         sdr::contact::SdrObjectVector aObjectVector;
 214
 215         for (size_t a = 0; a < mxSdrPage->GetObjCount(); ++a)
 216         {
 217             SdrObject* pObject = mxSdrPage->GetObj(a);
 218             DBG_ASSERT(pObject,
 219                 "SvxXConnectionPreview::Paint: Corrupt ObjectList (!)");
 220             aObjectVector.push_back(pObject);
 221         }
 222
 223         sdr::contact::ObjectContactOfObjListPainter aPainter(rRenderContext, std::move(aObjectVector), nullptr);
 224         sdr::contact::DisplayInfo aDisplayInfo;
 225
 226         // do processing
 227         aPainter.ProcessDisplay(aDisplayInfo);
 228     }
 229
 230     rRenderContext.Pop();
 231 }
 232
 233 void SvxXConnectionPreview::SetAttributes( const SfxItemSet& rInAttrs )
 234 {
 235     pEdgeObj->SetMergedItemSetAndBroadcast(rInAttrs);
 236
 237     Invalidate();
 238 }
 239
 240 // Get number of lines which are offset based on the preview object
 241
 242 sal_uInt16 SvxXConnectionPreview::GetLineDeltaCount() const
 243 {
 244     const SfxItemSet& rSet = pEdgeObj->GetMergedItemSet();
 245     sal_uInt16 nCount(0);
 246
 247     if(SfxItemState::DONTCARE != rSet.GetItemState(SDRATTR_EDGELINEDELTACOUNT))
 248         nCount = rSet.Get(SDRATTR_EDGELINEDELTACOUNT).GetValue();
 249
 250     return nCount;
 251 }
 252
 253 bool SvxXConnectionPreview::MouseButtonDown( const MouseEvent& rMEvt )
 254 {
 255     bool bZoomIn  = rMEvt.IsLeft() && !rMEvt.IsShift();
 256     bool bZoomOut = rMEvt.IsRight() || rMEvt.IsShift();
 257     bool bCtrl    = rMEvt.IsMod1();
 258
 259     if( bZoomIn || bZoomOut )
 260     {
 261         MapMode aMapMode = GetMapMode();
 262         Fraction aXFrac = aMapMode.GetScaleX();
 263         Fraction aYFrac = aMapMode.GetScaleY();
 264         std::unique_ptr<Fraction> pMultFrac;
 265
 266         if( bZoomIn )
 267         {
 268             if( bCtrl )
 269                 pMultFrac.reset(new Fraction( 3, 2 ));
 270             else
 271                 pMultFrac.reset(new Fraction( 11, 10 ));
 272         }
 273         else
 274         {
 275             if( bCtrl )
 276                 pMultFrac.reset(new Fraction( 2, 3 ));
 277             else
 278                 pMultFrac.reset(new Fraction( 10, 11 ));
 279         }
 280
 281         aXFrac *= *pMultFrac;
 282         aYFrac *= *pMultFrac;
 283         if( static_cast<double>(aXFrac) > 0.001 && static_cast<double>(aXFrac) < 1000.0 &&
 284             static_cast<double>(aYFrac) > 0.001 && static_cast<double>(aYFrac) < 1000.0 )
 285         {
 286             aMapMode.SetScaleX( aXFrac );
 287             aMapMode.SetScaleY( aYFrac );
 288             SetMapMode( aMapMode );
 289
 290             Size aOutSize(GetOutputSizePixel());
 291             aOutSize = GetDrawingArea()->get_ref_device().PixelToLogic(aOutSize);
 292
 293             Point aPt( aMapMode.GetOrigin() );
 294             tools::Long nX = static_cast<tools::Long>( ( static_cast<double>(aOutSize.Width()) - ( static_cast<double>(aOutSize.Width()) * static_cast<double>(*pMultFrac)  ) ) / 2.0 + 0.5 );
 295             tools::Long nY = static_cast<tools::Long>( ( static_cast<double>(aOutSize.Height()) - ( static_cast<double>(aOutSize.Height()) * static_cast<double>(*pMultFrac)  ) ) / 2.0 + 0.5 );
 296             aPt.AdjustX(nX );
 297             aPt.AdjustY(nY );
 298
 299             aMapMode.SetOrigin( aPt );
 300             SetMapMode( aMapMode );
 301
 302             Invalidate();
 303         }
 304     }
 305
 306     return true;
 307 }
 308
 309 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */