svx/source/sidebar/possize/SidebarDialControl.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 #include <svx/sidebar/SidebarDialControl.hxx>
  20
  21 #include <vcl/builder.hxx>
  22 #include <vcl/svapp.hxx>
  23 #include <vcl/settings.hxx>
  24
  25 namespace svx { namespace sidebar {
  26
  27 SidebarDialControl::SidebarDialControl (Window* pParent, WinBits nBits)
  28     : svx::DialControl(pParent, nBits)
  29 {
  30     Init(GetOutputSizePixel());
  31 }
  32
  33 extern "C" SAL_DLLPUBLIC_EXPORT Window* SAL_CALL makeSidebarDialControl(Window *pParent, VclBuilder::stringmap &)
  34 {
  35     return new SidebarDialControl(pParent, WB_TABSTOP);
  36 }
  37
  38 SidebarDialControl::~SidebarDialControl (void)
  39 {
  40 }
  41
  42 Size SidebarDialControl::GetOptimalSize() const
  43 {
  44     return LogicToPixel(Size(10, 10), MAP_APPFONT);
  45 }
  46
  47 void SidebarDialControl::MouseButtonDown( const MouseEvent& rMEvt )
  48 {
  49     if( rMEvt.IsLeft() )
  50     {
  51         GrabFocus();
  52         CaptureMouse();
  53         mpImpl->mnOldAngle = mpImpl->mnAngle;
  54         HandleMouseEvent( rMEvt.GetPosPixel(), true );
  55     }
  56 }
  57
  58 void SidebarDialControl::HandleMouseEvent( const Point& rPos, bool bInitial )
  59 {
  60     long nX = rPos.X() - mpImpl->mnCenterX;
  61     long nY = mpImpl->mnCenterY - rPos.Y();
  62     double fH = sqrt( static_cast< double >( nX ) * nX + static_cast< double >( nY ) * nY );
  63     if( fH != 0.0 )
  64     {
  65         double fAngle = acos( nX / fH );
  66         sal_Int32 nAngle = static_cast< sal_Int32 >( fAngle / F_PI180 * 100.0 );
  67         if( nY < 0 )
  68             nAngle = 36000 - nAngle;
  69         if( bInitial )  // round to entire 15 degrees
  70             nAngle = ((nAngle + 750) / 1500) * 1500;
  71
  72         if (Application::GetSettings().GetLayoutRTL())
  73             nAngle = 18000 - nAngle;
  74         SetRotation( nAngle, true );
  75     }
  76 }
  77
  78 } } // end of namespace svx::sidebar
  79
  80 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */