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0001 /* This file is part of the KDE project
0002  * Copyright (C) 2010 Carlos Licea <carlos@kdab.com>
0003  *
0004  * This library is free software; you can redistribute it and/or
0005  * modify it under the terms of the GNU Library General Public
0006  * License as published by the Free Software Foundation; either
0007  * version 2 of the License, or (at your option) any later version.
0008  *
0009  * This library is distributed in the hope that it will be useful,
0010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
0011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0012  * Library General Public License for more details.
0013  *
0014  * You should have received a copy of the GNU Library General Public License
0015  * along with this library; see the file COPYING.LIB.  If not, write to
0016  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
0017  * Boston, MA 02110-1301, USA.
0018  */
0019 
0020 #ifndef MSOOXMLDRAWINGTABLESTYLE_H
0021 #define MSOOXMLDRAWINGTABLESTYLE_H
0022 
0023 #include <MsooXmlTableStyle.h>
0024 #include <KoTblStyle.h>
0025 
0026 /**
0027  * The idea behind these classes is the following:
0028  * > A document has a list of table styles identifiable by ID.
0029  * > A table style has a number of properties to be used if the
0030  * table that references the style toggles them on.
0031  * > Those are stored on a table style properties.
0032  *
0033  * > Now the way a style for a cell is composed can be quite complex
0034  * depending on a lot of things. Mainly:
0035  *  > The properties toggled and their precedence,
0036  *    the rule of thumb for the precedence is that it's higher
0037  *    the more more specific it is.
0038  *  > The position in which the cell is. The styles have a
0039  *    particularly tricky property: borders. The styles can
0040  *    specify (in the same style) the style for a border
0041  *    depending whether is in the outside of the table or
0042  *    if it's an inside border. That's why the size of the
0043  *    table is needed.
0044  *
0045  * Also, we might need to apply local styles (styles to one cell,)
0046  * or default styles for all the cells in a table. Defined in the very
0047  * table.
0048  *
0049  * For these reasons we don't apply styles directly but we use a style
0050  * converter for a specific table with a specific togglers for styles,
0051  * specific local styles or specific default styles and size. This converter
0052  * will give a KoCellStyle back.
0053  */
0054 
0055 namespace MSOOXML
0056 {
0057 
0058 /// Reading and storage
0059 
0060 class KOMSOOXML_EXPORT DrawingTableStyle : public TableStyle
0061 {
0062 public:
0063     enum Type {
0064         NoType,
0065         FirstRow,
0066         FirstCol,
0067         LastCol,
0068         LastRow,
0069         NeCell,
0070         NwCell,
0071         SeCell,
0072         SwCell,
0073         Band1Horizontal,
0074         Band2Horizontal,
0075         Band1Vertical,
0076         Band2Vertical,
0077         WholeTbl
0078     };
0079 
0080     DrawingTableStyle();
0081     ~DrawingTableStyle() override;
0082 
0083     //the style takes ownership of the properties
0084     void addProperties(Type type, TableStyleProperties* properties);
0085     TableStyleProperties* properties(Type type) const;
0086 
0087     //Style of the whole table, not cell styles
0088     KoTblStyle::Ptr mainStyle;
0089 
0090 private:
0091     QMap<Type, TableStyleProperties*> m_properties;
0092     //TODO: handle the table background stored in the element TblBg
0093 };
0094 
0095 class KOMSOOXML_EXPORT DrawingTableStyleConverterProperties : public TableStyleConverterProperties
0096 {
0097 public:
0098     DrawingTableStyleConverterProperties();
0099     ~DrawingTableStyleConverterProperties() override;
0100 
0101     enum Role {
0102         FirstRow = 1,
0103         FirstCol = 2,
0104         LastCol = 4,
0105         LastRow = 8,
0106         NeCell = 16,
0107         NwCell = 32,
0108         SeCell = 64,
0109         SwCell = 128,
0110         RowBanded = 256,
0111         ColumnBanded = 512,
0112         WholeTbl = 1024
0113     };
0114     Q_DECLARE_FLAGS(Roles, Role)
0115 
0116     void setRoles(Roles roles);
0117     Roles roles() const;
0118 
0119 private:
0120     Roles m_role;
0121 };
0122 
0123 class KOMSOOXML_EXPORT DrawingTableStyleConverter : public TableStyleConverter
0124 {
0125 public:
0126     explicit DrawingTableStyleConverter(DrawingTableStyleConverterProperties const& properties, DrawingTableStyle* style =0);
0127     ~DrawingTableStyleConverter() override;
0128 
0129     KoCellStyle::Ptr style(int row, int column, const QPair<int, int> &spans) override;
0130 
0131 private:
0132     void applyStyle(MSOOXML::DrawingTableStyle::Type type, KoCellStyle::Ptr& style, int row, int column, const QPair<int, int> &spans);
0133 
0134     DrawingTableStyle * const m_style;
0135     DrawingTableStyleConverterProperties const& m_properties;
0136 };
0137 
0138 }
0139 
0140 Q_DECLARE_OPERATORS_FOR_FLAGS(MSOOXML::DrawingTableStyleConverterProperties::Roles)
0141 
0142 #endif