svx/source/table/tablelayouter.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   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 #ifndef INCLUDED_SVX_SOURCE_TABLE_TABLELAYOUTER_HXX
  21 #define INCLUDED_SVX_SOURCE_TABLE_TABLELAYOUTER_HXX
  22
  23 #include <sal/types.h>
  24 #include <basegfx/range/b2irectangle.hxx>
  25 #include <basegfx/tuple/b2ituple.hxx>
  26 #include <vector>
  27
  28 #include <svx/svdotable.hxx>
  29 #include <celltypes.hxx>
  30
  31 namespace tools { class Rectangle; }
  32
  33
  34 namespace editeng {
  35     class SvxBorderLine;
  36 }
  37
  38 namespace sdr::table {
  39
  40 /** returns true if the cell(nMergedCol,nMergedRow) is merged with other cells.
  41     the returned cell( rOriginCol, rOriginRow ) is the origin( top left cell ) of the merge.
  42 */
  43 bool findMergeOrigin( const TableModelRef& xTable, sal_Int32 nMergedCol, sal_Int32 nMergedRow, sal_Int32& rOriginCol, sal_Int32& rOriginRow );
  44
  45 typedef std::vector< editeng::SvxBorderLine* > BorderLineVector;
  46 typedef std::vector< BorderLineVector > BorderLineMap;
  47
  48
  49 // TableModel
  50
  51 struct EdgeInfo final
  52 {
  53     sal_Int32 nIndex;
  54     sal_Int32 nPosition;
  55     sal_Int32 nMin;
  56     sal_Int32 nMax;
  57
  58     EdgeInfo(sal_Int32 nInIndex, sal_Int32 nInPosition, sal_Int32 nInMin, sal_Int32 nInMax)
  59         : nIndex(nInIndex)
  60         , nPosition(nInPosition)
  61         , nMin(nInMin)
  62         , nMax(nInMax)
  63     {}
  64 };
  65
  66 class TableLayouter final
  67 {
  68 public:
  69     explicit TableLayouter( const TableModelRef& xTableModel );
  70     ~TableLayouter();
  71
  72     /** try to fit the table into the given rectangle.
  73         If the rectangle is too small, it will be grown to fit the table.
  74
  75         if bFitWidth or bFitHeight is set, the layouter tries to scale
  76         the rows and/or columns to the given area. The result my be bigger
  77         to fulfill constrains.
  78
  79         if bFitWidth or bFitHeight is set, the model is changed.
  80     */
  81     void LayoutTable( ::tools::Rectangle& rRectangle, bool bFitWidth, bool bFitHeight );
  82
  83     void UpdateBorderLayout();
  84
  85     bool getCellArea( const CellRef& xCell, const CellPos& rPos, basegfx::B2IRectangle& rArea ) const;
  86
  87     ::sal_Int32 getRowCount() const { return static_cast< ::sal_Int32 >( maRows.size() ); }
  88     ::sal_Int32 getColumnCount() const { return static_cast< ::sal_Int32 >( maColumns.size() ); }
  89     sal_Int32 getRowHeight( sal_Int32 nRow ) const;
  90
  91     sal_Int32 getColumnWidth( sal_Int32 nColumn ) const;
  92     sal_Int32 calcPreferredColumnWidth( sal_Int32 nColumn, Size aSize ) const;
  93
  94     sal_Int32 getMinimumColumnWidth( sal_Int32 nColumn );
  95
  96     /** checks if the given edge is visible.
  97         Edges between merged cells are not visible.
  98     */
  99     bool isEdgeVisible( sal_Int32 nEdgeX, sal_Int32 nEdgeY, bool bHorizontal ) const;
 100
 101     /** returns the requested borderline in rpBorderLine or a null pointer if there is no border at this edge */
 102     editeng::SvxBorderLine* getBorderLine( sal_Int32 nEdgeX, sal_Int32 nEdgeY, bool bHorizontal )const;
 103
 104     void updateCells( ::tools::Rectangle const & rRectangle );
 105
 106     std::vector<EdgeInfo> getHorizontalEdges();
 107     sal_Int32 getHorizontalEdge( int nEdgeY, sal_Int32* pnMin, sal_Int32* pnMax );
 108
 109     std::vector<EdgeInfo> getVerticalEdges();
 110     sal_Int32 getVerticalEdge( int nEdgeX , sal_Int32* pnMin, sal_Int32* pnMax);
 111
 112
 113     void DistributeColumns( ::tools::Rectangle& rArea,
 114                             sal_Int32 nFirstCol,
 115                             sal_Int32 nLastCol,
 116                             const bool bOptimize,
 117                             const bool bMinimize );
 118     void DistributeRows( ::tools::Rectangle& rArea,
 119                          sal_Int32 nFirstRow,
 120                          sal_Int32 nLastRow,
 121                          const bool bOptimize,
 122                          const bool bMinimize );
 123     void dumpAsXml(xmlTextWriterPtr pWriter) const;
 124
 125 private:
 126     CellRef getCell( const CellPos& rPos ) const;
 127     basegfx::B2ITuple getCellSize( const CellRef& xCell, const CellPos& rPos ) const;
 128
 129     void LayoutTableWidth( ::tools::Rectangle& rArea, bool bFit );
 130     void LayoutTableHeight( ::tools::Rectangle& rArea, bool bFit );
 131
 132     bool isValidColumn( sal_Int32 nColumn ) const { return (nColumn >= 0) && (nColumn < static_cast<sal_Int32>( maColumns.size())); }
 133     bool isValidRow( sal_Int32 nRow ) const { return (nRow >= 0) && (nRow < static_cast<sal_Int32>( maRows.size())); }
 134     bool isValid( const CellPos& rPos ) const { return isValidColumn( rPos.mnCol ) && isValidRow( rPos.mnRow ); }
 135
 136     void ClearBorderLayout();
 137     static void ClearBorderLayout(BorderLineMap& rMap);
 138     void ResizeBorderLayout();
 139     void ResizeBorderLayout( BorderLineMap& rMap );
 140
 141     void SetBorder( sal_Int32 nCol, sal_Int32 nRow, bool bHorizontal, const editeng::SvxBorderLine* pLine );
 142
 143     static bool HasPriority( const editeng::SvxBorderLine* pThis, const editeng::SvxBorderLine* pOther );
 144
 145     struct Layout
 146     {
 147         sal_Int32 mnPos;
 148         sal_Int32 mnSize;
 149         sal_Int32 mnMinSize;
 150
 151         Layout() : mnPos( 0 ), mnSize( 0 ), mnMinSize( 0 ) {}
 152         void clear() { mnPos = 0; mnSize = 0; mnMinSize = 0; }
 153         void dumpAsXml(xmlTextWriterPtr pWriter) const;
 154     };
 155     typedef std::vector< Layout > LayoutVector;
 156
 157     static sal_Int32 distribute( LayoutVector& rLayouts, sal_Int32 nDistribute );
 158
 159     TableModelRef mxTable;
 160     LayoutVector maRows;
 161     LayoutVector maColumns;
 162
 163     BorderLineMap maHorizontalBorders;
 164     BorderLineMap maVerticalBorders;
 165 };
 166
 167 }
 168
 169 #endif
 170
 171 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */