CustusX  16.5
An IGT application
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cxFilePreviewWidget.cpp
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1 /*=========================================================================
2 This file is part of CustusX, an Image Guided Therapy Application.
3 
4 Copyright (c) 2008-2014, SINTEF Department of Medical Technology
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31 =========================================================================*/
32 
33 #include <cxFilePreviewWidget.h>
34 
35 #include <QTextEdit>
36 #include <QLabel>
37 #include <QTextDocument>
38 #include <QPushButton>
39 #include <QTextStream>
40 //#include <QFileInfo>
41 #include <QFile>
42 #include <iostream>
43 #include "cxTypeConversions.h"
44 #include <QFileSystemWatcher>
45 #include "cxLogger.h"
46 #include "snwSyntaxHighlighter.h"
47 
48 namespace cx
49 {
50 
52  FileWatcherWidget(parent, "FilePreviewWidget", "File Preview"),
53  mTextDocument(new QTextDocument(this)),
54  mTextEdit(new QTextEdit(this)),
55  mSaveButton(new QPushButton("Save", this))
56 {
57  this->setToolTip("Preview and edit a file");
58  mSyntaxHighlighter = NULL;
59  connect(mSaveButton, SIGNAL(clicked()), this, SLOT(saveSlot()));
60  mSaveButton->setEnabled(false);
61 
62  QHBoxLayout* buttonLayout = new QHBoxLayout();
63  buttonLayout->addStretch();
64  buttonLayout->setMargin(0);
65  buttonLayout->addWidget(mSaveButton);
66 
67  QVBoxLayout* layout = new QVBoxLayout(this);
68  layout->setMargin(0);
69  layout->addWidget(mTextEdit);
70  layout->addLayout(buttonLayout);
71 
72  connect(mTextEdit, SIGNAL(textChanged()), this, SLOT(textChangedSlot()));
73  mTextEdit->setDocument(mTextDocument);
74  mTextEdit->setLineWrapMode(QTextEdit::NoWrap);
75 
76  this->setSyntaxHighLighter<snw::SyntaxHighlighter>();
77 }
78 
80 {}
81 
83 {
84  mSaveButton->setEnabled(mTextDocument->isModified());
85 }
86 
87 void FilePreviewWidget::previewFileSlot(const QString& absoluteFilePath)
88 {
89  mSaveButton->setEnabled(false);
90 
91  if(!this->internalOpenNewFile(absoluteFilePath))
92  return;
93 
94  QTextStream stream(mCurrentFile.get());
95  QString text = stream.readAll();
96  mCurrentFile->close();
97 
98  mTextDocument->setPlainText(text);
99  mTextDocument->setModified(false);
100 
101  this->textChangedSlot();
102 }
103 
105 {
106  if(!mCurrentFile)
107  return;
108 
109  if(!mCurrentFile->open(QIODevice::WriteOnly | QIODevice::Truncate))
110  {
111  reportWarning("Could not open file "+mCurrentFile->fileName());
112  return;
113  }
114 
115  mCurrentFile->write(mTextDocument->toPlainText().toLatin1());
116  mCurrentFile->close();
117 
118  mTextDocument->setModified(false);
119 
120 }
121 
122 }//namespace cx
bool internalOpenNewFile(const QString absoluteFilePath)
boost::shared_ptr< QFile > mCurrentFile
virtual void previewFileSlot(const QString &absoluteFilePath)
void reportWarning(QString msg)
Definition: cxLogger.cpp:91
Baseclass for widgets that should watch a file.
FilePreviewWidget(QWidget *parent)