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1 /* Quint - A graphical user interface for Octave |
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2 * Copyright (C) 2011 Jacob Dawid |
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3 * jacob.dawid@googlemail.com |
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4 * |
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5 * This program is free software: you can redistribute it and/or modify |
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6 * it under the terms of the GNU General Public License as published by |
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7 * the Free Software Foundation, either version 3 of the License, or |
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8 * (at your option) any later version. |
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9 * |
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10 * This program is distributed in the hope that it will be useful, |
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 * GNU General Public License for more details. |
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14 * |
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15 * You should have received a copy of the GNU General Public License |
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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17 */ |
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18 |
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19 #include "FileEditorMdiSubWindow.h" |
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20 #include <QVBoxLayout> |
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21 #include <QApplication> |
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22 #include <QFile> |
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23 #include <QFileDialog> |
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24 #include <QMessageBox> |
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25 #include <QAction> |
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26 #include <QStyle> |
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27 #include <QTextStream> |
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28 |
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29 FileEditorMdiSubWindow::FileEditorMdiSubWindow(QWidget *parent) |
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30 : QMdiSubWindow(parent) { |
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31 construct(); |
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32 } |
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33 |
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34 FileEditorMdiSubWindow::~FileEditorMdiSubWindow() { |
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35 while(checkFileModified("Close File")) { |
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36 } // don't close if something went wrong while saving the file |
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37 } |
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38 |
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39 void FileEditorMdiSubWindow::loadFile(QString fileName) { |
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40 QFile file(fileName); |
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41 if (!file.open(QFile::ReadOnly)) { |
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42 QMessageBox::warning(this, tr("File Editor"), |
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43 tr("Cannot read file %1:\n%2.") |
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44 .arg(fileName) |
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45 .arg(file.errorString())); |
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46 return; |
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47 } |
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48 |
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49 QTextStream in(&file); |
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50 QApplication::setOverrideCursor(Qt::WaitCursor); |
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51 m_editor->setText(in.readAll()); |
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52 QApplication::restoreOverrideCursor(); |
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53 |
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54 m_fileName = fileName; |
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55 setWindowTitle(fileName); |
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56 m_statusBar->showMessage(tr("File loaded."), 2000); |
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57 } |
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58 |
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59 void FileEditorMdiSubWindow::newFile() { |
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60 if(checkFileModified("Open New File")) { |
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61 return; // something went wrong while saving the old file |
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62 } |
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63 m_fileName = "<unnamed>"; |
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64 setWindowTitle(m_fileName); |
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65 //m_simpleEditor->setPlainText(""); |
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66 } |
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67 |
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68 int FileEditorMdiSubWindow::checkFileModified(QString msg) { |
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69 if(m_modified) { |
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70 int decision |
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71 = QMessageBox::question(this, |
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72 msg, |
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73 "Do you want to save the current file?", |
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74 QMessageBox::Yes, QMessageBox::No); |
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75 |
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76 if(decision == QMessageBox::Yes) { |
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77 saveFile(); |
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78 if(m_modified) { |
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79 // If the user attempted to save the file, but it's still |
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80 // modified, then probably something went wrong, so return error |
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81 return(1); |
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82 } |
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83 } |
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84 } |
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85 return(0); |
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86 } |
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87 |
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88 void FileEditorMdiSubWindow::saveFile() { |
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89 if(m_fileName.isEmpty()) { |
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90 m_fileName = QFileDialog::getSaveFileName(this, "Save File", m_fileName); |
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91 if(m_fileName.isEmpty()) |
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92 return; |
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93 } |
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94 |
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95 QFile file(m_fileName); |
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96 if (!file.open(QFile::WriteOnly)) { |
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97 QMessageBox::warning(this, tr("File Editor"), |
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98 tr("Cannot write file %1:\n%2.") |
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99 .arg(m_fileName) |
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100 .arg(file.errorString())); |
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101 return; |
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102 } |
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103 |
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104 QTextStream out(&file); |
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105 QApplication::setOverrideCursor(Qt::WaitCursor); |
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106 out << m_editor->text(); |
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107 QApplication::restoreOverrideCursor(); |
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108 m_statusBar->showMessage(tr("File saved"), 2000); |
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109 } |
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110 |
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111 void FileEditorMdiSubWindow::saveFileAs() {/* |
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112 QString saveFileName = QFileDialog::getSaveFileName(this, "Save File", m_fileName); |
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113 if(saveFileName.isEmpty()) |
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114 return; |
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115 |
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116 QFile file(saveFileName); |
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117 file.open(QFile::WriteOnly); |
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118 |
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119 if(file.write(m_simpleEditor->toPlainText().toLocal8Bit()) == -1) { |
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120 QMessageBox::warning(this, |
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121 "Error Saving File", |
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122 QString("The file could not be saved: %1.").arg(file.errorString())); |
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123 } else { |
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124 m_simpleEditor->document()->setModified(false); |
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125 m_fileName = saveFileName; |
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126 setWindowTitle(m_fileName); |
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127 } |
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128 |
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129 file.close();*/ |
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130 } |
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131 |
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132 void FileEditorMdiSubWindow::showToolTipNew() { |
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133 m_statusBar->showMessage("Create a new file.", 2000); |
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134 } |
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135 |
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136 void FileEditorMdiSubWindow::showToolTipSave() { |
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137 m_statusBar->showMessage("Save the file.", 2000); |
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138 } |
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139 |
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140 void FileEditorMdiSubWindow::showToolTipSaveAs() { |
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141 m_statusBar->showMessage("Save the file as.", 2000); |
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142 } |
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143 void FileEditorMdiSubWindow::showToolTipUndo() { |
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144 m_statusBar->showMessage("Revert previous changes.", 2000); |
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145 } |
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146 |
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147 void FileEditorMdiSubWindow::showToolTipRedo() { |
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148 m_statusBar->showMessage("Append previous changes.", 2000); |
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149 } |
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150 |
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151 void FileEditorMdiSubWindow::registerModified(bool modified) { |
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152 m_modified = modified; |
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153 } |
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154 |
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155 void FileEditorMdiSubWindow::construct() { |
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156 QStyle *style = QApplication::style(); |
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157 setWidget(new QWidget()); |
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158 m_toolBar = new QToolBar(this); |
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159 m_statusBar = new QStatusBar(this); |
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160 m_editor = new QsciScintilla(this); |
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161 m_editor->setMarginLineNumbers(QsciScintilla::TextMargin, true); |
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162 m_editor->setMarginWidth(QsciScintilla::TextMargin, "xxxx"); |
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163 |
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164 QAction *newAction = new QAction(style->standardIcon(QStyle::SP_FileIcon), |
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165 "", m_toolBar); |
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166 QAction *saveAction = new QAction(style->standardIcon(QStyle::SP_DriveHDIcon), |
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167 "", m_toolBar); |
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168 QAction *saveActionAs = new QAction(style->standardIcon(QStyle::SP_DriveFDIcon), |
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169 "", m_toolBar); |
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170 QAction *undoAction = new QAction(style->standardIcon(QStyle::SP_ArrowLeft), |
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171 "", m_toolBar); |
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172 QAction *redoAction = new QAction(style->standardIcon(QStyle::SP_ArrowRight), |
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173 "", m_toolBar); |
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174 |
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175 m_toolBar->addAction(newAction); |
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176 m_toolBar->addAction(saveAction); |
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177 m_toolBar->addAction(saveActionAs); |
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178 m_toolBar->addAction(undoAction); |
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179 m_toolBar->addAction(redoAction); |
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180 |
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181 QVBoxLayout *layout = new QVBoxLayout(); |
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182 layout->addWidget(m_toolBar); |
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183 layout->addWidget(m_editor); |
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184 layout->addWidget(m_statusBar); |
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185 layout->setMargin(2); |
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186 widget()->setLayout(layout); |
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187 |
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188 connect(newAction, SIGNAL(triggered()), this, SLOT(newFile())); |
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189 connect(undoAction, SIGNAL(triggered()), m_editor, SLOT(undo())); |
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190 connect(redoAction, SIGNAL(triggered()), m_editor, SLOT(redo())); |
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191 connect(saveAction, SIGNAL(triggered()), this, SLOT(saveFile())); |
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192 connect(saveActionAs, SIGNAL(triggered()), this, SLOT(saveFileAs())); |
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193 |
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194 connect(newAction, SIGNAL(hovered()), this, SLOT(showToolTipNew())); |
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195 connect(undoAction, SIGNAL(hovered()), this, SLOT(showToolTipUndo())); |
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196 connect(redoAction, SIGNAL(hovered()), this, SLOT(showToolTipRedo())); |
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197 connect(saveAction, SIGNAL(hovered()), this, SLOT(showToolTipSave())); |
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198 connect(saveActionAs, SIGNAL(hovered()), this, SLOT(showToolTipSaveAs())); |
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199 |
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200 m_fileName = ""; |
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201 setWindowTitle(m_fileName); |
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202 show(); |
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203 } |
