Mercurial > clickerconvert

annotate src/converter.cpp @ 32:ad54c98cb8d8

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Minor layout fixes
author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 11 Apr 2016 14:33:01 +0200
parents 5acd601356ba
children ca66763b6524
rev   line source
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1 /* Copyright (C) 2016 by ETH Zürich
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU GPL (v>=2)
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5 * and comes with ABSOLUTELY NO WARRANTY!
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6 * See LICENSE.txt for details.
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7 */
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8
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9 #include "converter.h"
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10 #include <QDebug>
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11 #include <QRegularExpression>
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12 #include <QRegularExpressionMatch>
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13 #include <QTextDocument>
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14 #include <QPrinter>
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15 #include <QImage>
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16 #include <QPainter>
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17
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18 #include "xlsxdocument.h"
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19 #include "xlsxconditionalformatting.h"
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20
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21 #include "constants.h"
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22
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23 QTXLSX_USE_NAMESPACE
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24
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25 Converter::Converter(const QString &input, const QString &output,
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26 ConvertFormat fmt, const QString &title):
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27 QThread(Q_NULLPTR),
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28 mInput(input),
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29 mOutput(output),
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30 mFmt(fmt),
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31 mTitle(title)
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32 {
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33 mTitleFmt.setFontUnderline(Format::FontUnderlineSingle);
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34 mTitleFmt.setFontSize(18);
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35 mTitleFmt.setFontName("Calibri");
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36 mTitleFmt.setFontBold(true);
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37 mTitleFmt.setVerticalAlignment(Format::AlignTop);
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38
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39
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40 mQuestionFmt.setFontSize(11);
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41 mQuestionFmt.setFontName("Calibri");
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42 mQuestionFmt.setFontBold(true);
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43 mQuestionFmt.setTopBorderStyle(Format::BorderThin);
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44 mQuestionFmt.setBottomBorderStyle(Format::BorderThin);
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45 mQuestionFmt.setTextWarp(true);
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46
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47 mAnswerChoiceFmt.setFontSize(11);
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48 mAnswerChoiceFmt.setFontName("Calibri");
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49 mAnswerChoiceFmt.setHorizontalAlignment(Format::AlignLeft);
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50 mAnswerChoiceFmt.setTextWarp(true);
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51
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52 mChoiceTextFmt = mAnswerChoiceFmt;
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53 mChoiceTextFmt.setVerticalAlignment(Format::AlignVCenter);
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54
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55 mChoiceVotesFmt = mChoiceTextFmt;
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56 mChoiceVotesFmt.setFontSize(10);
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57
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58 mFreeTextFmt = mQuestionFmt;
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59 mFreeTextFmt.setFontBold(false);
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60
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61 mAnswerTextFmt = mQuestionFmt;
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62 mAnswerTextFmt.setVerticalAlignment(Format::AlignVCenter);
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63 mAnswerTextFmt.setHorizontalAlignment(Format::AlignLeft);
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64
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65 mTitleStyle = QStringLiteral("<tr><td colspan='3' style='vertical-align: top;"
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66 "font-weight: bold; text-decoration:underline; font-size: 18pt;'>"
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67 "%1</td></tr><tr/>");
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68 mQuestionStyle = QStringLiteral("<tr><td colspan='3' style='font-size: 11pt;font-weight: bold;'"
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69 "><hr/>%1<hr/></td></tr>");
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70 mAnswerChoiceStyle= QStringLiteral("<tr><td colspan='3' style='text-align: left; font-size: 11pt;'>Answer</td></tr>");
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71 mChoiceTextStyle= QStringLiteral("<tr><td align='right' style='vertical-align: middle; font-size:11pt;'>%1</td>");
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72 mChoiceVotesStyle = QStringLiteral("<td style='text-align: left;vertical-algin: center;"
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73 "font-size:10pt;'</td>%1</td></tr>");
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74 mAnswerTextStyle = QStringLiteral("<tr><td colspan='3' style='font-weight: bold;vertical-algin: middle;"
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75 "font-size:11pt;'>Answer<hr/></td></tr>");
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76 mFreeTextStyle = QStringLiteral("<tr><td colspan='3'; font-size:11pt;'>%1<hr/></td></tr>");
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77 mEmptyRow = QStringLiteral("<tr style='height: %1px'/>").arg(CHOICE_ROW_HEIGHT);
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78 }
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79
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80 void Converter::run()
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81 {
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82 QFile infile;
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83
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84 if (mInput.isEmpty()) {
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85 if (!infile.open(stdin, QIODevice::ReadOnly)) {
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86 mErrors << tr("Failed to open standard input and no input file provided.");
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87 return;
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88 }
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89 } else {
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90 infile.setFileName(mInput);
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91 if (!infile.open(QIODevice::ReadOnly)) {
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92 mErrors << tr("Failed to open %1 for reading.").arg(mInput);
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93 return;
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94 }
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95 }
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96 QTextStream instream(&infile);
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97
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98 QFile outfile;
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99 if (mOutput.isEmpty()) {
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100 if (!outfile.open(stdout, QIODevice::WriteOnly)) {
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101 mErrors << tr("Failed to open standard output and no output file provided.");
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102 return;
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103 }
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104 } else {
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105 outfile.setFileName(mOutput);
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106 if (!outfile.open(QIODevice::WriteOnly)) {
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107 mErrors << tr("Failed to open %1 for writing.").arg(mOutput);
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108 return;
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109 }
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110 }
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111 convertToXSLX(instream, outfile);
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112 }
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113
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114 static void makeBar(QTextStream &html, double percent, int width, QTextDocument &doc, bool forPDF)
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115 {
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116 static int barCnt;
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117 if (!forPDF) {
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118 html << QStringLiteral("<td style='background:linear-gradient(to right,"
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119 BAR_COLOR ", " BAR_COLOR " %1%, #ffffff %1%)'></td>").arg(percent);
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120 return;
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121 }
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122 QImage image(QSize(width, 25), QImage::Format_RGB32);
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123 QPainter painter(&image);
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124 QRect rect = image.rect();
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125 qDebug() << "Image of " << width;
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126 rect.setRight(rect.right() / (100 / percent));
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127 painter.fillRect(rect, QColor(BAR_COLOR));
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128 qDebug() << "Filled " << rect << " with color";
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129 rect.setLeft(rect.right());
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130 rect.setRight(width);
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131 painter.fillRect(rect, Qt::white);
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132 qDebug() << "Filled " << rect << " with white";
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133 doc.addResource(QTextDocument::ImageResource, QUrl(QStringLiteral("internal://bar%1.png").arg(barCnt)),
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134 QVariant(image));
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135 html << QStringLiteral("<td style='vertical-align: middle'><img src=\"internal://bar%1.png\"/></td>").arg(barCnt++);
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136 image.save(QStringLiteral("/tmp/foo.png"));
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137 return;
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138 }
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139
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140 void Converter::convertToXSLX(QTextStream& instream, QFile &output)
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141 {
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142 Document xlsx;
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143 QTextDocument doc;
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144 QString htmlString;
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145 QTextStream html (&htmlString);
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146
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147 ConditionalFormatting bars;
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148
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149 bars.addDataBarRule(QColor(0xFF, 0x99, 0x33), ConditionalFormatting::VOT_Num,
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150 "0", ConditionalFormatting::VOT_Num, "100", false);
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151
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152 const double colWidth[] = COLUMN_WIDTHS;
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153 double sum = 0;
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154
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155 for (int i = 1; i <= COLUMN_CNT; i++) {
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156 xlsx.setColumnWidth(i, colWidth[i-1]);
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157 sum += colWidth[i-1];
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158 }
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159
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160 double xlsx2htmlFactor = HTML_WIDTH / sum;
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161 int col1Width = colWidth[0] * xlsx2htmlFactor;
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162 int col2Width = colWidth[1] * xlsx2htmlFactor;
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163 int col3Width = colWidth[2] * xlsx2htmlFactor;
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164
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165 /* For the merged cell wordwrap trick. */
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166 xlsx.setColumnWidth(26, sum + 1);
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167 xlsx.setColumnHidden(26, true);
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168
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169 int row = 1;
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170 html << "<html><meta http-equiv=\"Content-Type\" content=\"text/html;charset=UTF-8\">"
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171 "<body><table border=\"0\" style='width:\"" << HTML_WIDTH << "px\";border-collapse:collapse'>";
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172 html << "<tr><th width=\"" << col1Width << "px\"</th>";
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173 html << "<th width=\"" << col2Width << "px\"</th>";
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174 html << "<th width=\"" << col3Width << "px\"</th>";
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175
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176 const QString title = mTitle.isEmpty() ? DEFAULT_TITLE : mTitle;
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177 // Set the title of the Questionaire
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178 xlsx.write(row++, 1, title, mTitleFmt);
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179 html << mTitleStyle.arg(title.toHtmlEscaped());
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180 xlsx.mergeCells("A1:C1");
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181 xlsx.setRowHeight(1, TITLE_ROW_HEIGHT);
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182
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183 const QString input = instream.readAll();
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184
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185 QRegularExpression questionEx(QUESTION_PATTERN);
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186 QRegularExpression choiceEx(CHOICE_PATTERN);
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187 QRegularExpression freetxtEx (FREETXT_PATTERN);
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188
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189 QRegularExpressionMatch match = questionEx.match(input);
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190 bool foundSomething = false;
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191 int cursor = match.capturedEnd();
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192 while (match.hasMatch() && cursor != -1) {
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193 /* We've matched a question pattern. With the answer
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194 line */
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195 if (!match.lastCapturedIndex() == 2) {
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196 /* Should not happen without misconfiguration. */
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197 mErrors << "Internal parser error.";
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198 return;
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199 }
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200 foundSomething = true;
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201 const QString question = match.captured(1).trimmed();
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202 const QString answerLine = match.captured(2).trimmed();
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203 xlsx.write(row, 2, QString(" "), mQuestionFmt);
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204 xlsx.write(row, 3, QString(" "), mQuestionFmt);
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205 xlsx.write(row++, 1, question, mQuestionFmt);
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206 html << mQuestionStyle.arg(question.toHtmlEscaped());
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207
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208 if (answerLine == QStringLiteral(CHOICE_IDENTIFIER)) {
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209 QRegularExpressionMatch choiceMatch = choiceEx.match(input, cursor);
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210 xlsx.setRowHeight(row, CHOICE_ROW_HEIGHT);
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211 xlsx.write(row++, 1, "Answer", mAnswerChoiceFmt);
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212 html << mAnswerChoiceStyle;
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213 int firstChoiceRow = row;
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214 int lastChoiceRow = row;
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215 while (choiceMatch.hasMatch() && choiceMatch.capturedStart() == cursor + 1) {
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216 /* We use the cursor here to keep track of the state. Only if an answer
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217 follows immediately behind the last answer we treat it as valid as
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218 otherwise we can't figure out when the next question begins. */
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219 cursor = choiceMatch.capturedEnd();
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220
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221 /* Write the values */
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222 QString choiceName = choiceMatch.captured(1).trimmed();
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223 if (choiceName.startsWith("=")) {
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224 choiceName = " " + choiceName;
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225 }
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226 xlsx.write(row, 1, choiceName, mChoiceTextFmt);
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227 html << mChoiceTextStyle.arg(choiceName.toHtmlEscaped());
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228 bool ok;
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229 double percent = choiceMatch.captured(3).toDouble(&ok);
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230 if (!ok) {
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231 mErrors << "Unparsable number in string: " + choiceMatch.captured();
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232 }
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233 makeBar(html, percent, col2Width, doc, mFmt == Format_PDF);
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234 xlsx.write(row, 2, percent);
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235 const QString numVotesString = QString("%1% | %2 Number of votes").
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236 arg(choiceMatch.captured(3)).arg(choiceMatch.captured(2));
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237 html << mChoiceVotesStyle.arg(numVotesString.toHtmlEscaped());
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238 xlsx.write(row, 3, numVotesString, mChoiceVotesFmt);
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239 xlsx.setRowHeight(row, CHOICE_ROW_HEIGHT);
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240 /* As long as we can match a choice which is either before the next question
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241 or before the end of the document */
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242 choiceMatch = choiceEx.match(input, cursor);
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243 row++;
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244 lastChoiceRow++;
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245 }
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246 bars.addRange(QString("B%1:B%2").arg(firstChoiceRow).arg(lastChoiceRow));
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247 // xlsx.groupRows(firstChoiceRow - 2, lastChoiceRow - 1, false);
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248 } else if (answerLine == QStringLiteral(TEXT_IDENTIFIER)) {
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249 QRegularExpressionMatch textMatch = freetxtEx.match(input, cursor);
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250 xlsx.setRowHeight(row, CHOICE_ROW_HEIGHT);
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251 xlsx.write(row++, 1, "Answer", mAnswerTextFmt);
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252 html << mAnswerTextStyle;
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253
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254 /* To handle the workaround for quotes in answers we store
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255 * the number of rows and only afterwards create the html rows. */
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256 int firstFreeRow = row;
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257 while (textMatch.hasMatch()) {
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258 if (textMatch.capturedStart() != cursor + 1) {
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259 /* The format allows unescaped quotes in the text.
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260 This makes a workaround neccessary. If we have
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261 an Unquoted string between the next quoted string
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262 and that Unquoted string is before the next question
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263 we append the unquoted string and the next quoted string
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264 with Quotes in the Row.*/
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265 QRegularExpressionMatch nextQuestion = questionEx.match(input, cursor);
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266 if (nextQuestion.hasMatch() &&
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267 nextQuestion.capturedStart() < textMatch.capturedEnd()) {
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268 /* The next question comes before the textMatch so we really have
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269 a new question. */
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270 break;
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271 }
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272 const QString lastRow = xlsx.read(row - 1, 26).toString();
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273 int unquotedLen = textMatch.capturedStart() - cursor;
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274 const QString unquoted = input.mid(cursor, unquotedLen);
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275 qDebug() << "Found inner quoted string: " << unquoted;
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276 /* Now combine */
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277 const QString combined = QString("%1\"%2\"%3").arg(lastRow).
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278 arg(unquoted).
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279 arg(textMatch.captured(1).trimmed());
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280 qDebug() << "Last row: " << lastRow;
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281 qDebug() << "Next Question is at: " << nextQuestion.capturedStart();
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282 qDebug() << "Text match is: " << textMatch.captured(1).trimmed();
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283 qDebug() << "cursor is at: " << cursor;
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284 qDebug() << "text match starts at: " << textMatch.capturedStart();
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285 xlsx.write(row - 1, 26, combined, mFreeTextFmt);
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286 xlsx.write(row - 1, 1, combined, mFreeTextFmt);
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287 cursor = textMatch.capturedEnd();
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288 textMatch = freetxtEx.match(input, cursor);
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289 continue;
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290 }
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291 cursor = textMatch.capturedEnd();
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292
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293 QString text = textMatch.captured(1).trimmed();
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294 qDebug() << "Found free text: " << text;
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295 if (text.startsWith("=")) {
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296 text = " " + text;
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297 }
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298
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299 /* Merge the cells */
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300 xlsx.mergeCells(QString("A%1:C%1").arg(row), mFreeTextFmt);
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301
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302 /* Merged cells ignore wordwrap the following trick is based on:
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303 http://excel.tips.net/T003207_Automatic_Row_Height_For_Merged_Cells_with_Text_Wrap.html
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304 */
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305 /* Write the values */
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306 xlsx.write(QString("Z%1").arg(row), text, mFreeTextFmt);
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307 xlsx.write(row, 1, text, mFreeTextFmt);
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308 row++;
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309
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310 textMatch = freetxtEx.match(input, cursor);
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311 }
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312 for (int i = firstFreeRow; i < row; i++) {
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313 html << mFreeTextStyle.arg(xlsx.read(i, 1).toString().toHtmlEscaped());
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314 }
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315 }
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316 /* Insert Empty row. */
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317 xlsx.setRowHeight(row++, CHOICE_ROW_HEIGHT);
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318 match = questionEx.match(input, cursor);
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319 cursor = match.capturedEnd();
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320 html << mEmptyRow;
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321 }
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322 xlsx.addConditionalFormatting(bars);
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323
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324 if (!foundSomething) {
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325 mErrors << tr("Failed to parse input document.");
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326 }
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327
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328 if (mFmt == Format_XLSX && !xlsx.saveAs(&output)) {
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329 mErrors << tr("Saving the XLSX document failed.");
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330 return;
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331 }
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332
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333 html << "</table></body></html>";
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334
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335 if (mFmt == Format_HTML) {
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336 QTextStream outstream(&output);
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337 outstream << htmlString;
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338 return;
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339 }
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340
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341 if (mFmt == Format_PDF) {
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342 output.close();
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343 QPrinter printer(QPrinter::PrinterResolution);
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344 printer.setOutputFormat(QPrinter::PdfFormat);
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345 printer.setPaperSize(QPrinter::A4);
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346 printer.setOutputFileName(output.fileName());
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347 doc.setHtml(htmlString);
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348 doc.print(&printer);
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349 }
3
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350 }
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