Initial help window support, show sudo errors.

[qcpufreq] / src / helpwindow.cpp

diff --git a/src/helpwindow.cpp b/src/helpwindow.cpp
new file mode 100644 (file)
index 0000000..a4d2a3a
--- /dev/null
+++ b/src/helpwindow.cpp
@@ -0,0 +1,59 @@
+#include "helpwindow.h"
+#include "ui_helpwindow.h"
+
+#include <QFile>
+#include <QLocale>
+#include <QTextStream>
+#include <QMessageBox>
+
+HelpWindow::HelpWindow(QWidget *parent) :
+    QWidget(parent),
+    ui(new Ui::HelpWindow)
+{
+    //this is a stacked window on Maemo 5
+    #if defined(Q_WS_MAEMO_5)
+       //setAttribute(Qt::WA_Maemo5StackedWindow);
+    #endif
+    ui->setupUi(this);
+
+    setHelpText();
+
+}
+
+HelpWindow::~HelpWindow()
+{
+    delete ui;
+}
+
+
+/**
+  * Assigns the help text to the QTextEdit
+  */
+void HelpWindow::setHelpText()
+{
+    //get the current locale name for lacalized help messages
+    QString locale = QLocale::system().name();
+
+    //open help text
+    QFile help( ":/txt/help_" + locale );
+
+    //open the file
+    if ( !help.exists() || !help.open( QIODevice::ReadOnly ) ) {
+       //try to open the file in english language instead
+       help.setFileName(":/txt/help_en");
+       if ( !help.exists() || !help.open( QIODevice::ReadOnly ) ) {
+           QMessageBox::critical(this, tr("QCPUFreq"), tr("Cannot open help file!"));
+           return;
+       }
+    }
+
+    //read the file
+    QTextStream in( &help );
+    QString txt;
+    do {
+       txt += in.readLine();
+       txt += "\n";
+    } while ( !in.atEnd() );
+
+    ui->textEdit->setText( txt );
+}