GUI: Show authors list and license in simple text file view dialog.

Add "Authors" and "License" items to the Help-menu. When selected, these items open simple text file viewer dialog. The AUTHORS and COPYING files are embedded to the executable and shown in the dialog.

gui/fileviewdialog.cpp

@@ -0,0 +1,96 @@
+/*
+ * Cppcheck - A tool for static C/C++ code analysis
+ * Copyright (C) 2007-2009 Daniel Marjamäki and Cppcheck team.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/
+ */
+
+#include <QDialog>
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QTextEdit>
+#include <QPushButton>
+#include <QFile>
+#include <QByteArray>
+#include <QMessageBox>
+#include "fileviewdialog.h"
+
+FileViewDialog::FileViewDialog(const QString &file, QWidget *parent)
+        : QDialog(parent)
+{
+    QString title = FormatTitle(file);
+    setWindowTitle(title);
+
+    QVBoxLayout *mainLayout = new QVBoxLayout();
+    QHBoxLayout *btnLayout = new QHBoxLayout();
+    QPushButton *quit = new QPushButton(tr("Close"));
+    QTextEdit *edit = new QTextEdit();
+    edit->setReadOnly(true);
+
+    mainLayout->addWidget(edit);
+    mainLayout->addLayout(btnLayout);
+    btnLayout->addStretch();
+    btnLayout->addWidget(quit);
+    setLayout(mainLayout);
+
+    connect(quit, SIGNAL(clicked()), this, SLOT(close()));
+
+    LoadTextFile(file, edit);
+}
+
+void FileViewDialog::LoadTextFile(const QString &filename, QTextEdit *edit)
+{
+    QFile file(filename);
+    if (!file.exists())
+    {
+        QString msg(tr("Could not find the file:\n"));
+        msg += filename;
+        QMessageBox msgbox(QMessageBox::Critical,
+                           tr("Cppcheck"),
+                           msg,
+                           QMessageBox::Ok,
+                           this);
+        msgbox.exec();
+        return;
+    }
+
+    file.open(QIODevice::ReadOnly | QIODevice::Text);
+    if (!file.isReadable())
+    {
+        QString msg(tr("Could not read the file:\n"));
+        msg += filename;
+        QMessageBox msgbox(QMessageBox::Critical,
+                           tr("Cppcheck"),
+                           msg,
+                           QMessageBox::Ok,
+                           this);
+        msgbox.exec();
+        return;
+    }
+    QByteArray filedata = file.readAll();
+    file.close();
+
+    QString filestringdata(filedata);
+    edit->setPlainText(filestringdata);
+}
+
+QString FileViewDialog::FormatTitle(const QString &filename)
+{
+    QString title(filename);
+    if (title.startsWith(":"))
+    {
+        title.remove(0, 1);
+    }
+    return title;
+}

gui/fileviewdialog.h

@@ -0,0 +1,58 @@
+/*
+ * Cppcheck - A tool for static C/C++ code analysis
+ * Copyright (C) 2007-2009 Daniel Marjamäki and Cppcheck team.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/
+ */
+
+#ifndef _FILEVIEW_DIALOG_H_
+#define _FILEVIEW_DIALOG_H_
+
+#include <QDialog>
+#include <QString>
+
+class QWidget;
+class QTextEdit;
+
+/**
+* @brief File view -dialog.
+* This dialog shows text files. It is used for showing the license file and
+* the authors list.
+*
+*/
+class FileViewDialog : public QDialog
+{
+    Q_OBJECT
+public:
+    FileViewDialog(const QString &file, QWidget *parent = 0);
+
+protected:
+
+    /**
+    * @brief Load text file contents to edit control.
+    *
+    * @param filename File to load.
+    * @param edit Control where to load the file contents.
+    */
+    void LoadTextFile(const QString &filename, QTextEdit *edit);
+
+    /**
+    * @brief Format dialog title from filename.
+    *
+    * @param filename File to load.
+    */
+    QString FormatTitle(const QString &filename);
+};
+
+#endif // _FILEVIEW_DIALOG_H_

gui/gui.pro

@@ -26,6 +26,7 @@ HEADERS += 	mainwindow.h \
 		applicationdialog.h \
 		aboutdialog.h \
 		common.h \
+		fileviewdialog.h \
 		../src/checkautovariables.h \
 		../src/checkdangerousfunctions.h \
 		../src/checkheaders.h \
@@ -60,6 +61,7 @@ SOURCES += 	main.cpp \
 		applicationlist.cpp \
 		applicationdialog.cpp \
 		aboutdialog.cpp \
+		fileviewdialog.cpp \
 		../src/checkautovariables.cpp \
 		../src/checkdangerousfunctions.cpp \
 		../src/checkmemoryleak.cpp \

gui/gui.qrc

@@ -12,5 +12,8 @@
     <file>images/process-stop.png</file>
     <file>images/text-x-generic.png</file>
     <file>images/view-refresh.png</file>
+
+    <file alias="COPYING">../COPYING</file>
+    <file alias="AUTHORS">../AUTHORS</file>
 </qresource>
 </RCC>

gui/mainwindow.cpp

@@ -26,6 +26,7 @@
 #include <QToolBar>
 #include <QKeySequence>
 #include "aboutdialog.h"
+#include "fileviewdialog.h"
 #include "../src/filelister.h"
 #include "../src/cppcheckexecutor.h"
 
@@ -47,6 +48,8 @@ MainWindow::MainWindow() :
         mActionShowCollapseAll(tr("Collapse all"), this),
         mActionShowExpandAll(tr("Expand all"), this),
         mActionAbout(tr("About"), this),
+        mActionShowLicense(tr("License..."), this),
+        mActionShowAuthors(tr("Authors..."), this),
         mActionStop(tr("Stop checking"), this),
         mActionSave(tr("Save results to a file"), this),
         mResults(mSettings, mApplications)
@@ -84,6 +87,9 @@ MainWindow::MainWindow() :
     menuprogram->addAction(&mActionSettings);
 
     QMenu *menuHelp = menuBar()->addMenu(tr("&Help"));
+    menuHelp->addAction(&mActionShowLicense);
+    menuHelp->addAction(&mActionShowAuthors);
+    menuHelp->addSeparator();
     menuHelp->addAction(&mActionAbout);
 
     setCentralWidget(&mResults);
@@ -110,6 +116,8 @@ MainWindow::MainWindow() :
     connect(&mActionSave, SIGNAL(triggered()), this, SLOT(Save()));
 
     connect(&mActionAbout, SIGNAL(triggered()), this, SLOT(About()));
+    connect(&mActionShowLicense, SIGNAL(triggered()), this, SLOT(ShowLicense()));
+    connect(&mActionShowAuthors, SIGNAL(triggered()), this, SLOT(ShowAuthors()));
     connect(&mThread, SIGNAL(Done()), this, SLOT(CheckDone()));
     connect(&mResults, SIGNAL(GotResults()), this, SLOT(ResultsAdded()));
 
@@ -434,9 +442,20 @@ void MainWindow::About()
     version.replace("Cppcheck ", "");
 
     AboutDialog *dlg = new AboutDialog(version, this);
-    dlg->show();
+    dlg->exec();
 }
 
+void MainWindow::ShowLicense()
+{
+    FileViewDialog *dlg = new FileViewDialog(":COPYING", this);
+    dlg->exec();
+}
+
+void MainWindow::ShowAuthors()
+{
+    FileViewDialog *dlg = new FileViewDialog(":AUTHORS", this);
+    dlg->exec();
+}
 
 void MainWindow::Save()
 {

gui/mainwindow.h

@@ -119,6 +119,17 @@ public slots:
     */
     void About();
 
+    /**
+    * @brief Slot to to show license text
+    *
+    */
+    void ShowLicense();
+
+    /**
+    * @brief Slot to to show authors list
+    *
+    */
+    void ShowAuthors();
 
     /**
     * @brief Slot to stop processing files
@@ -230,7 +241,6 @@ protected:
     */
     QAction mActionReCheck;
 
-
     /**
     * @brief Menu action to check a directory
     *
@@ -298,11 +308,23 @@ protected:
     QAction mActionShowExpandAll;
 
     /**
-    * @brief Action show about dialog
+    * @brief Action to show about dialog
     *
     */
     QAction mActionAbout;
 
+    /**
+    * @brief Action to show license text
+    *
+    */
+    QAction mActionShowLicense;
+
+    /**
+    * @brief Action to show authors list
+    *
+    */
+    QAction mActionShowAuthors;
+
     /**
     * @brief Action stop checking files
     *