#include <QtGui>#include "convertdialog.h"ConvertDialog::ConvertDialog(QWidget *parent)    : QDialog(parent){    setupUi(this);    connect(&process, SIGNAL(readyReadStandardError()),            this, SLOT(updateOutputTextEdit()));    connect(&process, SIGNAL(finished(int, QProcess::ExitStatus)),            this, SLOT(processFinished(int, QProcess::ExitStatus)));    connect(&process, SIGNAL(error(QProcess::ProcessError)),            this, SLOT(processError(QProcess::ProcessError)));}void ConvertDialog::on_browseButton_clicked(){    QString initialName = sourceFileEdit->text();    if (initialName.isEmpty())        initialName = QDir::homePath();    QString fileName =            QFileDialog::getOpenFileName(this, tr("Choose File"),                                         initialName);    fileName = QDir::convertSeparators(fileName);    if (!fileName.isEmpty()) {        sourceFileEdit->setText(fileName);        convertButton->setEnabled(true);    }}void ConvertDialog::on_convertButton_clicked(){    QString sourceFile = sourceFileEdit->text();    targetFile = QFileInfo(sourceFile).path() + QDir::separator()                 + QFileInfo(sourceFile).baseName() + "."                 + targetFormatComboBox->currentText().toLower();    convertButton->setEnabled(false);    outputTextEdit->clear();    QStringList args;    if (enhanceCheckBox->isChecked())        args << "-enhance";    if (monochromeCheckBox->isChecked())        args << "-monochrome";    args << sourceFile << targetFile;    process.start("convert", args);}void ConvertDialog::updateOutputTextEdit(){    QByteArray newData = process.readAllStandardError();    QString text = outputTextEdit->toPlainText()                   + QString::fromLocal8Bit(newData);    outputTextEdit->setPlainText(text);}void ConvertDialog::processFinished(int exitCode,                                    QProcess::ExitStatus exitStatus){    if (exitStatus == QProcess::CrashExit) {        outputTextEdit->append(tr("Conversion program crashed"));    } else if (exitCode != 0) {        outputTextEdit->append(tr("Conversion failed"));    } else {        outputTextEdit->append(tr("File %1 created").arg(targetFile));    }    convertButton->setEnabled(true);}void ConvertDialog::processError(QProcess::ProcessError error){    if (error == QProcess::FailedToStart) {        outputTextEdit->append(tr("Conversion program not found"));        convertButton->setEnabled(true);    }}