sd/source/ui/view/drviewsh.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 <DrawViewShell.hxx>
  21
  22 #include <sal/log.hxx>
  23 #include <rtl/math.hxx>
  24 #include <comphelper/lok.hxx>
  25
  26 #include <DrawDocShell.hxx>
  27
  28 #include <slideshow.hxx>
  29
  30 namespace sd {
  31
  32 void DrawViewShell::GotoBookmark(std::u16string_view rBookmark)
  33 {
  34     ::sd::DrawDocShell* pDocSh = GetDocSh();
  35     if( pDocSh )
  36     {
  37         if( !pDocSh->GetViewShell() ) //#i26016# this case occurs if the jump-target-document was opened already with file open dialog before triggering the jump via hyperlink
  38             pDocSh->Connect(this);
  39         pDocSh->GotoBookmark(rBookmark);
  40     }
  41 }
  42
  43 /**
  44  * Make area visible (scroll part of picture)
  45 |*
  46 \************************************************************************/
  47
  48 void DrawViewShell::MakeVisible(const ::tools::Rectangle& rRect, vcl::Window& rWin)
  49 {
  50     if ( IsMouseButtonDown() && !IsMouseSelecting() )
  51         return;
  52
  53     if ( SlideShow::IsRunning( GetViewShellBase() ) && !SlideShow::IsInteractiveSlideshow( &GetViewShellBase() ) ) // IASS
  54         return;
  55
  56     // tdf#98646 check if Rectangle which contains the bounds of the region to
  57     // be shown eventually contains values that cause overflows when processing
  58     // e.g. when calling GetWidth()
  59     const bool bOverflowInX(!rtl::math::approxEqual(static_cast<double>(rRect.getOpenWidth()), static_cast<double>(rRect.Right()) - static_cast<double>(rRect.Left())));
  60     const bool bOverflowInY(!rtl::math::approxEqual(static_cast<double>(rRect.getOpenHeight()), static_cast<double>(rRect.Bottom()) - static_cast<double>(rRect.Top())));
  61
  62     if(bOverflowInX || bOverflowInY)
  63     {
  64         SAL_WARN("sd", "The given Rectangle contains values that lead to numerical overflows (!)");
  65         return;
  66     }
  67
  68     // In older versions, if in X or Y the size of the object was
  69     // smaller than the visible area, the user-defined zoom was
  70     // changed. This was decided to be a bug for
  71     // StarOffice 6.x (Apr 2002), thus I developed a
  72     // version which instead handles X/Y bigger/smaller and visibility
  73     // questions separately
  74     const Size aLogicSize(rRect.GetSize());
  75
  76     // visible area
  77     Size aVisSizePixel(rWin.GetOutputSizePixel());
  78     bool bTiledRendering = comphelper::LibreOfficeKit::isActive() && !rWin.IsMapModeEnabled();
  79     if (bTiledRendering)
  80     {
  81         rWin.GetOutDev()->Push(vcl::PushFlags::MAPMODE);
  82         rWin.EnableMapMode();
  83     }
  84     ::tools::Rectangle aVisArea(rWin.PixelToLogic(::tools::Rectangle(Point(0,0), aVisSizePixel)));
  85     if (bTiledRendering)
  86         rWin.GetOutDev()->Pop();
  87     Size aVisAreaSize(aVisArea.GetSize());
  88
  89     if ( aVisArea.Contains(rRect) )
  90         return;
  91
  92     // object is not entirely in visible area
  93     sal_Int32 nFreeSpaceX(aVisAreaSize.Width() - aLogicSize.Width());
  94     sal_Int32 nFreeSpaceY(aVisAreaSize.Height() - aLogicSize.Height());
  95
  96     // allow a mode for move-only visibility without zooming.
  97     const sal_Int32 nPercentBorder(30);
  98     const ::tools::Rectangle aInnerRectangle(
  99         aVisArea.Left() + ((aVisAreaSize.Width() * nPercentBorder) / 200),
 100         aVisArea.Top() + ((aVisAreaSize.Height() * nPercentBorder) / 200),
 101         aVisArea.Right() - ((aVisAreaSize.Width() * nPercentBorder) / 200),
 102         aVisArea.Bottom() - ((aVisAreaSize.Height() * nPercentBorder) / 200)
 103         );
 104     Point aNewPos(aVisArea.TopLeft());
 105
 106     if(nFreeSpaceX < 0)
 107     {
 108         if(aInnerRectangle.Left() > rRect.Right())
 109         {
 110             // object moves out to the left
 111             aNewPos.AdjustX( -(aVisAreaSize.Width() / 2) );
 112         }
 113
 114         if(aInnerRectangle.Right() < rRect.Left())
 115         {
 116             // object moves out to the right
 117             aNewPos.AdjustX(aVisAreaSize.Width() / 2 );
 118         }
 119     }
 120     else
 121     {
 122         if(nFreeSpaceX > rRect.GetWidth())
 123         {
 124             nFreeSpaceX = rRect.GetWidth();
 125         }
 126
 127         if(nFreeSpaceX <= 0)
 128         {
 129             SAL_WARN("sd", "The given Rectangle contains values that lead to numerical overflows (!)");
 130         }
 131         else
 132         {
 133             const ::tools::Long distRight(rRect.Right() - aNewPos.X() - aVisAreaSize.Width());
 134
 135             if(distRight > 0)
 136             {
 137                 ::tools::Long mult = (distRight / nFreeSpaceX) + 1;
 138                 aNewPos.AdjustX(mult * nFreeSpaceX );
 139             }
 140
 141             const ::tools::Long distLeft(aNewPos.X() - rRect.Left());
 142
 143             if(distLeft > 0)
 144             {
 145                 ::tools::Long mult = (distLeft / nFreeSpaceX) + 1;
 146                 aNewPos.AdjustX( -(mult * nFreeSpaceX) );
 147             }
 148         }
 149     }
 150
 151     if(nFreeSpaceY < 0)
 152     {
 153         if(aInnerRectangle.Top() > rRect.Bottom())
 154         {
 155             // object moves out to the top
 156             aNewPos.AdjustY( -(aVisAreaSize.Height() / 2) );
 157         }
 158
 159         if(aInnerRectangle.Bottom() < rRect.Top())
 160         {
 161             // object moves out to the right
 162             aNewPos.AdjustY(aVisAreaSize.Height() / 2 );
 163         }
 164     }
 165     else
 166     {
 167         if(nFreeSpaceY > rRect.GetHeight())
 168         {
 169             nFreeSpaceY = rRect.GetHeight();
 170         }
 171
 172         if(nFreeSpaceY <= 0)
 173         {
 174             SAL_WARN("sd", "The given Rectangle contains values that lead to numerical overflows (!)");
 175         }
 176         else
 177         {
 178             const ::tools::Long distBottom(rRect.Bottom() - aNewPos.Y() - aVisAreaSize.Height());
 179
 180             if(distBottom > 0)
 181             {
 182                 ::tools::Long mult = (distBottom / nFreeSpaceY) + 1;
 183                 aNewPos.AdjustY(mult * nFreeSpaceY );
 184             }
 185
 186             const ::tools::Long distTop(aNewPos.Y() - rRect.Top());
 187
 188             if(distTop > 0)
 189             {
 190                 ::tools::Long mult = (distTop / nFreeSpaceY) + 1;
 191                 aNewPos.AdjustY( -(mult * nFreeSpaceY) );
 192             }
 193         }
 194     }
 195
 196     // did position change? Does it need to be set?
 197     if(aNewPos != aVisArea.TopLeft())
 198     {
 199         aVisArea.SetPos(aNewPos);
 200         SetZoomRect(aVisArea);
 201     }
 202 }
 203
 204 }
 205
 206 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */