sd/source/ui/sidebar/PreviewValueSet.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 "PreviewValueSet.hxx"
  21 #include <vcl/image.hxx>
  22
  23
  24 namespace sd { namespace sidebar {
  25
  26
  27 PreviewValueSet::PreviewValueSet (::Window* pParent)
  28     : ValueSet (pParent, WB_TABSTOP),
  29       maPreviewSize(10,10),
  30       mnBorderWidth(3),
  31       mnBorderHeight(3),
  32       mnMaxColumnCount(-1)
  33 {
  34     SetStyle (
  35         GetStyle()
  36         & ~(WB_ITEMBORDER)// | WB_MENUSTYLEVALUESET)
  37         //        | WB_FLATVALUESET);
  38         );
  39     SetColCount(2);
  40     SetExtraSpacing (2);
  41 }
  42
  43
  44
  45
  46 PreviewValueSet::~PreviewValueSet (void)
  47 {
  48 }
  49
  50
  51
  52
  53 void PreviewValueSet::SetPreviewSize (const Size& rSize)
  54 {
  55     maPreviewSize = rSize;
  56 }
  57
  58
  59
  60
  61 void PreviewValueSet::SetRightMouseClickHandler (const Link& rLink)
  62 {
  63     maRightMouseClickHandler = rLink;
  64 }
  65
  66
  67
  68
  69 void PreviewValueSet::MouseButtonDown (const MouseEvent& rEvent)
  70 {
  71     if (rEvent.IsRight())
  72         maRightMouseClickHandler.Call(reinterpret_cast<void*>(
  73             &const_cast<MouseEvent&>(rEvent)));
  74     else
  75         ValueSet::MouseButtonDown (rEvent);
  76
  77 }
  78
  79
  80
  81
  82 void PreviewValueSet::Resize (void)
  83 {
  84     ValueSet::Resize ();
  85
  86     Size aWindowSize (GetOutputSizePixel());
  87     if (aWindowSize.Width()>0 && aWindowSize.Height()>0)
  88     {
  89         Rearrange();
  90     }
  91 }
  92
  93
  94
  95
  96 void PreviewValueSet::Rearrange (bool /*bForceRequestResize*/)
  97 {
  98     sal_uInt16 nNewColumnCount (CalculateColumnCount (
  99         GetOutputSizePixel().Width()));
 100     sal_uInt16 nNewRowCount (CalculateRowCount (nNewColumnCount));
 101
 102     SetColCount(nNewColumnCount);
 103     SetLineCount(nNewRowCount);
 104 }
 105
 106
 107
 108
 109 sal_uInt16 PreviewValueSet::CalculateColumnCount (int nWidth) const
 110 {
 111     int nColumnCount = 0;
 112     if (nWidth > 0)
 113     {
 114         nColumnCount = nWidth / (maPreviewSize.Width() + 2*mnBorderWidth);
 115         if (nColumnCount < 1)
 116             nColumnCount = 1;
 117         else if (mnMaxColumnCount>0 && nColumnCount>mnMaxColumnCount)
 118             nColumnCount = mnMaxColumnCount;
 119     }
 120     return (sal_uInt16)nColumnCount;
 121 }
 122
 123
 124
 125
 126 sal_uInt16 PreviewValueSet::CalculateRowCount (sal_uInt16 nColumnCount) const
 127 {
 128     int nRowCount = 0;
 129     int nItemCount = GetItemCount();
 130     if (nColumnCount > 0)
 131     {
 132         nRowCount = (nItemCount+nColumnCount-1) / nColumnCount;
 133         if (nRowCount < 1)
 134             nRowCount = 1;
 135     }
 136
 137     return (sal_uInt16)nRowCount;
 138 }
 139
 140
 141
 142
 143 sal_Int32 PreviewValueSet::GetPreferredWidth (sal_Int32 nHeight)
 144 {
 145     int nPreferredWidth (maPreviewSize.Width() + 2*mnBorderWidth);
 146
 147     // Get height of each row.
 148     int nItemHeight (maPreviewSize.Height() + 2*mnBorderHeight);
 149
 150     // Calculate the row- and column count and from the later the preferred
 151     // width.
 152     int nRowCount = nHeight / nItemHeight;
 153     if (nRowCount > 0)
 154     {
 155         int nColumnCount = (GetItemCount()+nRowCount-1) / nRowCount;
 156         if (nColumnCount > 0)
 157             nPreferredWidth = (maPreviewSize.Width() + 2*mnBorderWidth)
 158                 * nColumnCount;
 159     }
 160
 161     return nPreferredWidth;
 162 }
 163
 164
 165
 166
 167 sal_Int32 PreviewValueSet::GetPreferredHeight (sal_Int32 nWidth)
 168 {
 169     int nRowCount (CalculateRowCount(CalculateColumnCount(nWidth)));
 170     int nItemHeight (maPreviewSize.Height());
 171
 172     return nRowCount * (nItemHeight + 2*mnBorderHeight);
 173 }
 174
 175
 176
 177
 178 } } // end of namespace sd::sidebar
 179
 180 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */