1 | /* |
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2 | |
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3 | Copyright 2012-2013 Adam Reichold |
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4 | |
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5 | This file is part of qpdfview. |
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6 | |
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7 | qpdfview is free software: you can redistribute it and/or modify |
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8 | it under the terms of the GNU General Public License as published by |
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9 | the Free Software Foundation, either version 2 of the License, or |
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10 | (at your option) any later version. |
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11 | |
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12 | qpdfview is distributed in the hope that it will be useful, |
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13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | GNU General Public License for more details. |
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16 | |
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17 | You should have received a copy of the GNU General Public License |
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18 | along with qpdfview. If not, see <http://www.gnu.org/licenses/>. |
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19 | |
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20 | */ |
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21 | |
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22 | #include "formfieldwidgets.h" |
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23 | |
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24 | #include <QGraphicsProxyWidget> |
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25 | #include <QMutex> |
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26 | |
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27 | #include <poppler-form.h> |
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28 | |
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29 | #ifndef HAS_POPPLER_24 |
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30 | |
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31 | #define LOCK_FORM_FIELD QMutexLocker mutexLocker(m_mutex); |
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32 | |
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33 | #else |
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34 | |
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35 | #define LOCK_FORM_FIELD |
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36 | |
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37 | #endif // HAS_POPPLER_24 |
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38 | |
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39 | namespace |
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40 | { |
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41 | |
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42 | bool hideOnEscape(QWidget* widget, QKeyEvent* event) |
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43 | { |
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44 | if(event->key() == Qt::Key_Escape) |
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45 | { |
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46 | widget->hide(); |
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47 | |
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48 | event->accept(); |
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49 | return true; |
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50 | } |
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51 | |
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52 | return false; |
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53 | } |
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54 | |
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55 | } // anonymous |
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56 | |
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57 | namespace qpdfview |
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58 | { |
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59 | |
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60 | NormalTextFieldWidget::NormalTextFieldWidget(QMutex* mutex, Poppler::FormFieldText* formField, QWidget* parent) : QLineEdit(parent), |
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61 | m_mutex(mutex), |
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62 | m_formField(formField) |
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63 | { |
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64 | LOCK_FORM_FIELD |
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65 | |
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66 | setText(m_formField->text()); |
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67 | setMaxLength(m_formField->maximumLength()); |
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68 | setAlignment(m_formField->textAlignment()); |
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69 | setEchoMode(m_formField->isPassword() ? QLineEdit::Password : QLineEdit::Normal); |
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70 | |
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71 | connect(this, SIGNAL(textChanged(QString)), SLOT(on_textChanged(QString))); |
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72 | connect(this, SIGNAL(textChanged(QString)), SIGNAL(wasModified())); |
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73 | |
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74 | connect(this, SIGNAL(returnPressed()), SLOT(hide())); |
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75 | } |
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76 | |
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77 | void NormalTextFieldWidget::keyPressEvent(QKeyEvent* event) |
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78 | { |
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79 | if(!hideOnEscape(this, event)) |
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80 | { |
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81 | QLineEdit::keyPressEvent(event); |
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82 | } |
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83 | } |
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84 | |
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85 | void NormalTextFieldWidget::on_textChanged(const QString& text) |
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86 | { |
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87 | LOCK_FORM_FIELD |
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88 | |
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89 | m_formField->setText(text); |
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90 | } |
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91 | |
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92 | MultilineTextFieldWidget::MultilineTextFieldWidget(QMutex* mutex, Poppler::FormFieldText* formField, QWidget* parent) : QPlainTextEdit(parent), |
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93 | m_mutex(mutex), |
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94 | m_formField(formField) |
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95 | { |
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96 | LOCK_FORM_FIELD |
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97 | |
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98 | setPlainText(m_formField->text()); |
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99 | |
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100 | connect(this, SIGNAL(textChanged()), SLOT(on_textChanged())); |
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101 | connect(this, SIGNAL(textChanged()), SIGNAL(wasModified())); |
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102 | |
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103 | moveCursor(QTextCursor::End); |
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104 | } |
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105 | |
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106 | void MultilineTextFieldWidget::keyPressEvent(QKeyEvent* event) |
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107 | { |
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108 | if(!hideOnEscape(this, event)) |
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109 | { |
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110 | QPlainTextEdit::keyPressEvent(event); |
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111 | } |
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112 | } |
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113 | |
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114 | void MultilineTextFieldWidget::on_textChanged() |
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115 | { |
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116 | LOCK_FORM_FIELD |
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117 | |
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118 | m_formField->setText(toPlainText()); |
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119 | } |
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120 | |
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121 | ComboBoxChoiceFieldWidget::ComboBoxChoiceFieldWidget(QMutex* mutex, Poppler::FormFieldChoice* formField, QWidget* parent) : QComboBox(parent), |
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122 | m_mutex(mutex), |
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123 | m_formField(formField) |
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124 | { |
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125 | LOCK_FORM_FIELD |
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126 | |
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127 | addItems(m_formField->choices()); |
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128 | |
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129 | if(!m_formField->currentChoices().isEmpty()) |
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130 | { |
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131 | setCurrentIndex(m_formField->currentChoices().first()); |
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132 | } |
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133 | |
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134 | connect(this, SIGNAL(currentIndexChanged(int)), SLOT(on_currentIndexChanged(int))); |
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135 | connect(this, SIGNAL(currentIndexChanged(int)), SIGNAL(wasModified())); |
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136 | |
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137 | #ifdef HAS_POPPLER_22 |
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138 | |
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139 | if(m_formField->isEditable()) |
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140 | { |
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141 | setEditable(true); |
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142 | setInsertPolicy(QComboBox::NoInsert); |
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143 | |
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144 | lineEdit()->setText(m_formField->editChoice()); |
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145 | |
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146 | connect(lineEdit(), SIGNAL(textChanged(QString)), SLOT(on_currentTextChanged(QString))); |
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147 | connect(lineEdit(), SIGNAL(textChanged(QString)), SIGNAL(wasModified())); |
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148 | |
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149 | connect(lineEdit(), SIGNAL(returnPressed()), SLOT(hide())); |
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150 | } |
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151 | else |
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152 | { |
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153 | connect(this, SIGNAL(activated(int)), SLOT(hide())); |
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154 | } |
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155 | |
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156 | #else |
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157 | |
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158 | connect(this, SIGNAL(activated(int)), SLOT(hide())); |
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159 | |
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160 | #endif // HAS_POPPLER_22 |
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161 | } |
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162 | |
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163 | void ComboBoxChoiceFieldWidget::keyPressEvent(QKeyEvent* event) |
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164 | { |
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165 | if(!hideOnEscape(this, event)) |
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166 | { |
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167 | QComboBox::keyPressEvent(event); |
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168 | } |
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169 | } |
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170 | |
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171 | void ComboBoxChoiceFieldWidget::showPopup() |
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172 | { |
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173 | QComboBox::showPopup(); |
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174 | |
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175 | graphicsProxyWidget()->setZValue(1.0); |
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176 | } |
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177 | |
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178 | void ComboBoxChoiceFieldWidget::hidePopup() |
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179 | { |
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180 | QComboBox::hidePopup(); |
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181 | |
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182 | graphicsProxyWidget()->setZValue(0.0); |
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183 | } |
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184 | |
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185 | void ComboBoxChoiceFieldWidget::on_currentIndexChanged(int index) |
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186 | { |
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187 | LOCK_FORM_FIELD |
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188 | |
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189 | m_formField->setCurrentChoices(QList< int >() << index); |
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190 | } |
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191 | |
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192 | void ComboBoxChoiceFieldWidget::on_currentTextChanged(const QString& text) |
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193 | { |
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194 | LOCK_FORM_FIELD |
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195 | |
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196 | #ifdef HAS_POPPLER_22 |
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197 | |
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198 | m_formField->setEditChoice(text); |
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199 | |
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200 | #endif // HAS_POPPLER_22 |
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201 | } |
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202 | |
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203 | ListBoxChoiceFieldWidget::ListBoxChoiceFieldWidget(QMutex* mutex, Poppler::FormFieldChoice* formField, QWidget* parent) : QListWidget(parent), |
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204 | m_mutex(mutex), |
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205 | m_formField(formField) |
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206 | { |
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207 | LOCK_FORM_FIELD |
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208 | |
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209 | addItems(m_formField->choices()); |
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210 | setSelectionMode(m_formField->multiSelect() ? QAbstractItemView::MultiSelection : QAbstractItemView::SingleSelection); |
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211 | |
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212 | foreach(int index, m_formField->currentChoices()) |
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213 | { |
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214 | if(index >= 0 && index < count()) |
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215 | { |
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216 | item(index)->setSelected(true); |
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217 | } |
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218 | } |
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219 | |
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220 | connect(this, SIGNAL(itemSelectionChanged()), SLOT(on_itemSelectionChanged())); |
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221 | connect(this, SIGNAL(itemSelectionChanged()), SIGNAL(wasModified())); |
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222 | } |
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223 | |
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224 | void ListBoxChoiceFieldWidget::keyPressEvent(QKeyEvent* event) |
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225 | { |
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226 | if(!hideOnEscape(this, event)) |
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227 | { |
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228 | QListWidget::keyPressEvent(event); |
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229 | } |
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230 | } |
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231 | |
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232 | void ListBoxChoiceFieldWidget::on_itemSelectionChanged() |
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233 | { |
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234 | LOCK_FORM_FIELD |
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235 | |
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236 | QList< int > currentChoices; |
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237 | |
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238 | for(int index = 0; index < count(); ++index) |
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239 | { |
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240 | if(item(index)->isSelected()) |
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241 | { |
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242 | currentChoices.append(index); |
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243 | } |
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244 | } |
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245 | |
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246 | m_formField->setCurrentChoices(currentChoices); |
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247 | } |
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248 | |
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249 | CheckBoxChoiceFieldWidget::CheckBoxChoiceFieldWidget(QMutex* mutex, Poppler::FormFieldButton* formField, QWidget* parent) : QCheckBox(parent), |
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250 | m_mutex(mutex), |
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251 | m_formField(formField) |
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252 | { |
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253 | LOCK_FORM_FIELD |
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254 | |
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255 | setChecked(m_formField->state()); |
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256 | |
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257 | connect(this, SIGNAL(toggled(bool)), SLOT(on_toggled(bool))); |
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258 | connect(this, SIGNAL(toggled(bool)), SIGNAL(wasModified())); |
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259 | } |
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260 | |
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261 | void CheckBoxChoiceFieldWidget::keyPressEvent(QKeyEvent* event) |
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262 | { |
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263 | if(!hideOnEscape(this, event)) |
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264 | { |
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265 | QCheckBox::keyPressEvent(event); |
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266 | } |
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267 | } |
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268 | |
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269 | void CheckBoxChoiceFieldWidget::on_toggled(bool checked) |
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270 | { |
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271 | LOCK_FORM_FIELD |
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272 | |
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273 | m_formField->setState(checked); |
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274 | } |
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275 | |
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276 | RadioChoiceFieldWidget::Siblings RadioChoiceFieldWidget::s_siblings; |
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277 | |
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278 | RadioChoiceFieldWidget::RadioChoiceFieldWidget(QMutex* mutex, Poppler::FormFieldButton* formField, QWidget* parent) : QRadioButton(parent), |
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279 | m_mutex(mutex), |
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280 | m_formField(formField) |
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281 | { |
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282 | LOCK_FORM_FIELD |
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283 | |
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284 | s_siblings.insert(qMakePair(m_mutex, m_formField->id()), this); |
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285 | |
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286 | setAutoExclusive(false); |
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287 | setChecked(m_formField->state()); |
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288 | |
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289 | connect(this, SIGNAL(toggled(bool)), SLOT(on_toggled(bool))); |
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290 | connect(this, SIGNAL(toggled(bool)), SIGNAL(wasModified())); |
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291 | } |
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292 | |
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293 | RadioChoiceFieldWidget::~RadioChoiceFieldWidget() |
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294 | { |
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295 | LOCK_FORM_FIELD |
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296 | |
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297 | s_siblings.remove(qMakePair(m_mutex, m_formField->id())); |
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298 | } |
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299 | |
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300 | void RadioChoiceFieldWidget::keyPressEvent(QKeyEvent* event) |
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301 | { |
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302 | if(!hideOnEscape(this, event)) |
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303 | { |
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304 | QRadioButton::keyPressEvent(event); |
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305 | } |
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306 | } |
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307 | |
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308 | void RadioChoiceFieldWidget::on_toggled(bool checked) |
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309 | { |
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310 | LOCK_FORM_FIELD |
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311 | |
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312 | m_formField->setState(checked); |
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313 | |
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314 | if(checked) |
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315 | { |
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316 | const QList< int > siblings = m_formField->siblings(); |
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317 | |
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318 | #ifndef HAS_POPPLER_24 |
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319 | |
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320 | mutexLocker.unlock(); |
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321 | |
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322 | #endif // HAS_POPPLER_24 |
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323 | |
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324 | foreach(int id, siblings) |
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325 | { |
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326 | const QPair< QMutex*, int > key = qMakePair(m_mutex, id); |
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327 | |
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328 | if(s_siblings.contains(key)) |
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329 | { |
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330 | s_siblings.value(key)->setChecked(false); |
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331 | } |
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332 | } |
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333 | } |
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334 | } |
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335 | |
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336 | } // qpdfview |
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