svx/source/dialog/measctrl.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/svdomeas.hxx>
  21 #include <svx/svdmodel.hxx>
  22
  23 #include "svx/measctrl.hxx"
  24 #include <svx/dialmgr.hxx>
  25 #include "svx/dlgutil.hxx"
  26
  27 SvxXMeasurePreview::SvxXMeasurePreview
  28 (
  29     Window* pParent,
  30     const ResId& rResId,
  31     const SfxItemSet& rInAttrs
  32 ) :
  33
  34     Control ( pParent, rResId ),
  35     rAttrs  ( rInAttrs )
  36
  37 {
  38     SetMapMode( MAP_100TH_MM );
  39
  40     Size aSize = GetOutputSize();
  41
  42     // Scale: 1:2
  43     MapMode aMapMode = GetMapMode();
  44     aMapMode.SetScaleX( Fraction( 1, 2 ) );
  45     aMapMode.SetScaleY( Fraction( 1, 2 ) );
  46     SetMapMode( aMapMode );
  47
  48     aSize = GetOutputSize();
  49     Point aPt1 = Point( aSize.Width() / 5, (long) ( aSize.Height() / 2 ) );
  50     Point aPt2 = Point( aSize.Width() * 4 / 5, (long) ( aSize.Height() / 2 ) );
  51
  52     pMeasureObj = new SdrMeasureObj( aPt1, aPt2 );
  53     pModel = new SdrModel();
  54     pMeasureObj->SetModel( pModel );
  55
  56     pMeasureObj->SetMergedItemSetAndBroadcast(rInAttrs);
  57
  58     SetDrawMode( GetSettings().GetStyleSettings().GetHighContrastMode() ? OUTPUT_DRAWMODE_CONTRAST : OUTPUT_DRAWMODE_COLOR );
  59
  60     Invalidate();
  61 }
  62
  63 SvxXMeasurePreview::~SvxXMeasurePreview()
  64 {
  65     // No one is deleting the MeasureObj? This is not only an error but also
  66     // a memory leak (!). Main problem is that this object is still listening to
  67     // a StyleSheet of the model which was set. Thus, if You want to keep the obnject,
  68     // set the modfel to 0L, if object is not needed (seems to be the case here),
  69     // delete it.
  70     delete pMeasureObj;
  71
  72     delete pModel;
  73 }
  74
  75 void SvxXMeasurePreview::Paint( const Rectangle&  )
  76 {
  77     pMeasureObj->SingleObjectPainter(*this);
  78 }
  79
  80 void SvxXMeasurePreview::SetAttributes( const SfxItemSet& rInAttrs )
  81 {
  82     pMeasureObj->SetMergedItemSetAndBroadcast(rInAttrs);
  83
  84     Invalidate();
  85 }
  86
  87 void SvxXMeasurePreview::MouseButtonDown( const MouseEvent& rMEvt )
  88 {
  89     bool bZoomIn  = rMEvt.IsLeft() && !rMEvt.IsShift();
  90     bool bZoomOut = rMEvt.IsRight() || rMEvt.IsShift();
  91     sal_Bool bCtrl    = rMEvt.IsMod1();
  92
  93     if( bZoomIn || bZoomOut )
  94     {
  95         MapMode aMapMode = GetMapMode();
  96         Fraction aXFrac = aMapMode.GetScaleX();
  97         Fraction aYFrac = aMapMode.GetScaleY();
  98         Fraction* pMultFrac;
  99
 100         if( bZoomIn )
 101         {
 102             if( bCtrl )
 103                 pMultFrac = new Fraction( 3, 2 );
 104             else
 105                 pMultFrac = new Fraction( 11, 10 );
 106         }
 107         else
 108         {
 109             if( bCtrl )
 110                 pMultFrac = new Fraction( 2, 3 );
 111             else
 112                 pMultFrac = new Fraction( 10, 11 );
 113         }
 114
 115         aXFrac *= *pMultFrac;
 116         aYFrac *= *pMultFrac;
 117         if( (double)aXFrac > 0.001 && (double)aXFrac < 1000.0 &&
 118             (double)aYFrac > 0.001 && (double)aYFrac < 1000.0 )
 119         {
 120             aMapMode.SetScaleX( aXFrac );
 121             aMapMode.SetScaleY( aYFrac );
 122             SetMapMode( aMapMode );
 123
 124             Size aOutSize( GetOutputSize() );
 125
 126             Point aPt( aMapMode.GetOrigin() );
 127             long nX = (long)( ( (double)aOutSize.Width() - ( (double)aOutSize.Width() * (double)*pMultFrac  ) ) / 2.0 + 0.5 );
 128             long nY = (long)( ( (double)aOutSize.Height() - ( (double)aOutSize.Height() * (double)*pMultFrac  ) ) / 2.0 + 0.5 );
 129             aPt.X() +=  nX;
 130             aPt.Y() +=  nY;
 131
 132             aMapMode.SetOrigin( aPt );
 133             SetMapMode( aMapMode );
 134
 135             Invalidate();
 136         }
 137         delete pMultFrac;
 138     }
 139 }
 140
 141 // -----------------------------------------------------------------------
 142
 143 void SvxXMeasurePreview::DataChanged( const DataChangedEvent& rDCEvt )
 144 {
 145     Control::DataChanged( rDCEvt );
 146
 147     if ( (rDCEvt.GetType() == DATACHANGED_SETTINGS) && (rDCEvt.GetFlags() & SETTINGS_STYLE) )
 148     {
 149         SetDrawMode( GetSettings().GetStyleSettings().GetHighContrastMode() ? OUTPUT_DRAWMODE_CONTRAST : OUTPUT_DRAWMODE_COLOR );
 150     }
 151 }
 152
 153 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */