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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the QtGui module of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #ifndef QTABLEVIEW_P_H |
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43 #define QTABLEVIEW_P_H |
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44 |
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45 // |
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46 // W A R N I N G |
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47 // ------------- |
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48 // |
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49 // This file is not part of the Qt API. It exists purely as an |
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50 // implementation detail. This header file may change from version to |
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51 // version without notice, or even be removed. |
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52 // |
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53 // We mean it. |
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54 // |
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55 |
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56 #include <QtCore/QList> |
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57 #include <QtCore/QLinkedList> |
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58 #include <QtCore/QMap> |
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59 #include <QtCore/QSet> |
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60 #include <QtCore/QDebug> |
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61 #include "private/qabstractitemview_p.h" |
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62 |
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63 #ifndef QT_NO_TABLEVIEW |
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64 |
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65 QT_BEGIN_NAMESPACE |
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66 |
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67 /** \internal |
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68 * |
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69 * This is a list of span with a binary index to look up quickly a span at a certain index. |
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70 * |
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71 * The index is a map of map. |
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72 * spans are mentaly divided into sub spans so that the start of any subspans doesn't overlap |
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73 * with any other subspans. There is no real representation of the subspans. |
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74 * The key of the first map is the row where the subspan starts, the value of the first map is |
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75 * a list (map) of all subspans that starts at the same row. It is indexed with its row |
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76 */ |
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77 class QSpanCollection |
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78 { |
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79 public: |
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80 struct Span |
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81 { |
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82 int m_top; |
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83 int m_left; |
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84 int m_bottom; |
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85 int m_right; |
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86 bool will_be_deleted; |
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87 Span() |
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88 : m_top(-1), m_left(-1), m_bottom(-1), m_right(-1), will_be_deleted(false) { } |
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89 Span(int row, int column, int rowCount, int columnCount) |
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90 : m_top(row), m_left(column), m_bottom(row+rowCount-1), m_right(column+columnCount-1), will_be_deleted(false) { } |
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91 inline int top() const { return m_top; } |
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92 inline int left() const { return m_left; } |
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93 inline int bottom() const { return m_bottom; } |
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94 inline int right() const { return m_right; } |
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95 inline int height() const { return m_bottom - m_top + 1; } |
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96 inline int width() const { return m_right - m_left + 1; } |
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97 }; |
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98 |
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99 ~QSpanCollection() |
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100 { |
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101 qDeleteAll(spans); |
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102 } |
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103 |
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104 void addSpan(Span *span); |
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105 void updateSpan(Span *span, int old_height); |
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106 Span *spanAt(int x, int y) const; |
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107 void clear(); |
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108 QList<Span *> spansInRect(int x, int y, int w, int h) const; |
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109 |
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110 void updateInsertedRows(int start, int end); |
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111 void updateInsertedColumns(int start, int end); |
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112 void updateRemovedRows(int start, int end); |
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113 void updateRemovedColumns(int start, int end); |
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114 |
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115 typedef QLinkedList<Span *> SpanList; |
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116 SpanList spans; //lists of all spans |
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117 private: |
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118 //the indexes are negative so the QMap::lowerBound do what i need. |
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119 typedef QMap<int, Span *> SubIndex; |
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120 typedef QMap<int, SubIndex> Index; |
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121 Index index; |
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122 |
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123 bool cleanSpanSubIndex(SubIndex &subindex, int end, bool update = false); |
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124 }; |
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125 |
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126 Q_DECLARE_TYPEINFO ( QSpanCollection::Span, Q_MOVABLE_TYPE); |
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127 |
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128 |
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129 class QTableViewPrivate : public QAbstractItemViewPrivate |
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130 { |
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131 Q_DECLARE_PUBLIC(QTableView) |
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132 public: |
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133 QTableViewPrivate() |
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134 : showGrid(true), gridStyle(Qt::SolidLine), |
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135 rowSectionAnchor(-1), columnSectionAnchor(-1), |
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136 columnResizeTimerID(0), rowResizeTimerID(0), |
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137 horizontalHeader(0), verticalHeader(0), |
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138 sortingEnabled(false), geometryRecursionBlock(false), |
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139 visualCursor(QPoint()) |
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140 { |
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141 wrapItemText = true; |
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142 #ifndef QT_NO_DRAGANDDROP |
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143 overwrite = true; |
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144 #endif |
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145 } |
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146 void init(); |
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147 void trimHiddenSelections(QItemSelectionRange *range) const; |
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148 |
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149 inline bool isHidden(int row, int col) const { |
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150 return verticalHeader->isSectionHidden(row) |
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151 || horizontalHeader->isSectionHidden(col); |
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152 } |
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153 inline int visualRow(int logicalRow) const { |
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154 return verticalHeader->visualIndex(logicalRow); |
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155 } |
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156 inline int visualColumn(int logicalCol) const { |
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157 return horizontalHeader->visualIndex(logicalCol); |
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158 } |
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159 inline int logicalRow(int visualRow) const { |
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160 return verticalHeader->logicalIndex(visualRow); |
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161 } |
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162 inline int logicalColumn(int visualCol) const { |
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163 return horizontalHeader->logicalIndex(visualCol); |
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164 } |
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165 |
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166 int sectionSpanEndLogical(const QHeaderView *header, int logical, int span) const; |
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167 int sectionSpanSize(const QHeaderView *header, int logical, int span) const; |
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168 bool spanContainsSection(const QHeaderView *header, int logical, int spanLogical, int span) const; |
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169 void drawAndClipSpans(const QRegion &area, QPainter *painter, |
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170 const QStyleOptionViewItemV4 &option, QBitArray *drawn, |
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171 int firstVisualRow, int lastVisualRow, int firstVisualColumn, int lastVisualColumn); |
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172 void drawCell(QPainter *painter, const QStyleOptionViewItemV4 &option, const QModelIndex &index); |
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173 |
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174 bool showGrid; |
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175 Qt::PenStyle gridStyle; |
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176 int rowSectionAnchor; |
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177 int columnSectionAnchor; |
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178 int columnResizeTimerID; |
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179 int rowResizeTimerID; |
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180 QList<int> columnsToUpdate; |
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181 QList<int> rowsToUpdate; |
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182 QHeaderView *horizontalHeader; |
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183 QHeaderView *verticalHeader; |
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184 QWidget *cornerWidget; |
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185 bool sortingEnabled; |
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186 bool geometryRecursionBlock; |
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187 QPoint visualCursor; // (Row,column) cell coordinates to track through span navigation. |
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188 |
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189 QSpanCollection spans; |
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190 |
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191 void setSpan(int row, int column, int rowSpan, int columnSpan); |
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192 QSpanCollection::Span span(int row, int column) const; |
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193 inline int rowSpan(int row, int column) const { |
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194 return span(row, column).height(); |
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195 } |
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196 inline int columnSpan(int row, int column) const { |
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197 return span(row, column).width(); |
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198 } |
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199 inline bool hasSpans() const { |
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200 return !spans.spans.isEmpty(); |
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201 } |
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202 inline int rowSpanHeight(int row, int span) const { |
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203 return sectionSpanSize(verticalHeader, row, span); |
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204 } |
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205 inline int columnSpanWidth(int column, int span) const { |
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206 return sectionSpanSize(horizontalHeader, column, span); |
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207 } |
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208 inline int rowSpanEndLogical(int row, int span) const { |
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209 return sectionSpanEndLogical(verticalHeader, row, span); |
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210 } |
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211 inline int columnSpanEndLogical(int column, int span) const { |
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212 return sectionSpanEndLogical(horizontalHeader, column, span); |
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213 } |
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214 |
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215 inline bool isRowHidden(int row) const { |
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216 return verticalHeader->isSectionHidden(row); |
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217 } |
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218 inline bool isColumnHidden(int column) const { |
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219 return horizontalHeader->isSectionHidden(column); |
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220 } |
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221 inline bool isCellEnabled(int row, int column) const { |
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222 return isIndexEnabled(model->index(row, column, root)); |
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223 } |
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224 inline bool isVisualRowHiddenOrDisabled(int row, int column) const { |
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225 int r = logicalRow(row); |
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226 int c = logicalColumn(column); |
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227 return isRowHidden(r) || !isCellEnabled(r, c); |
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228 } |
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229 inline bool isVisualColumnHiddenOrDisabled(int row, int column) const { |
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230 int r = logicalRow(row); |
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231 int c = logicalColumn(column); |
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232 return isColumnHidden(c) || !isCellEnabled(r, c); |
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233 } |
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234 |
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235 QRect visualSpanRect(const QSpanCollection::Span &span) const; |
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236 |
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237 void _q_selectRow(int row); |
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238 void _q_selectColumn(int column); |
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239 |
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240 void selectRow(int row, bool anchor); |
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241 void selectColumn(int column, bool anchor); |
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242 |
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243 void _q_updateSpanInsertedRows(const QModelIndex &parent, int start, int end); |
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244 void _q_updateSpanInsertedColumns(const QModelIndex &parent, int start, int end); |
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245 void _q_updateSpanRemovedRows(const QModelIndex &parent, int start, int end); |
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246 void _q_updateSpanRemovedColumns(const QModelIndex &parent, int start, int end); |
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247 }; |
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248 |
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249 QT_END_NAMESPACE |
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250 |
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251 #endif // QT_NO_TABLEVIEW |
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252 |
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253 #endif // QTABLEVIEW_P_H |