Added AboutBox that show when clicking Pracro button in status bar

1 files changed, 160 insertions, 0 deletions

diff --git a/client/aboutbox.cc b/client/aboutbox.cc
new file mode 100644
index 0000000..e4d1ffd
--- /dev/null
+++ b/client/aboutbox.cc
@@ -0,0 +1,160 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set et sw=2 ts=2: */
+/***************************************************************************
+ *            aboutbox.cc
+ *
+ *  Tue Oct 11 14:39:02 CEST 2011
+ *  Copyright 2011 Lars Bisballe Jensen
+ *  elsenator@gmail.com
+ ****************************************************************************/
+
+/*
+ *  This file is part of Pracro.
+ *
+ *  Pracro 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 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Pracro 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 Pracro; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include "aboutbox.h"
+#include "stdio.h"
+
+#include <QLabel>
+#include <QVBoxLayout>
+#include <QFile>
+#include <QTimer>
+#include <QScrollBar>
+#include <QScrollArea>
+
+AboutBox::AboutBox(QWidget *parent, Qt::WindowFlags f): QDialog(parent, f)
+{
+  setWindowTitle(tr("About Pracro"));
+  setFixedSize(590,500);
+
+  // Read AUTHORS data from file
+  QFile file(":AUTHORS");
+  QByteArray authorsText;
+  if(file.open(QIODevice::ReadOnly)) {
+    authorsText = file.readAll();
+    file.close();
+  } else {
+    printf("ERROR: Couldn't find AUTHORS file at the designated location.\n");
+    authorsText = "ERROR: File not found...";
+  }
+
+  // Read COPYING data from file
+  file.setFileName(":COPYING");
+  QByteArray gplText;
+  if(file.open(QIODevice::ReadOnly)) {
+    gplText = file.readAll();
+    file.close();
+  } else {
+    printf("ERROR: Couldn't find COPYING file at the designated location.\n");
+    gplText = "ERROR: File not found...";
+  }
+
+  QVBoxLayout *layout = new QVBoxLayout();
+
+  QHBoxLayout *topLayout = new QHBoxLayout();
+  QLabel *logo = new QLabel();
+  logo->setPixmap(QPixmap(":icons/icon.png"));
+  QLabel *title = new QLabel(tr("<h1>Pracro Client</h1>"
+                                "<h2>v."VERSION"</h2>"
+                                "Developed at Aarhus University Hospital"));
+  
+  topLayout->addWidget(logo);
+  topLayout->addWidget(title);
+  topLayout->setStretch(1, 1);
+  topLayout->setStretch(2, 2);
+
+  QLabel *releaseInfo = new QLabel(authorsText);
+  releaseInfo->setStyleSheet("QLabel { background-color : white; }");
+
+  QScrollArea *releaseInfoScroll = new QScrollArea();
+  releaseInfoScroll->setWidget(releaseInfo);
+
+  QLabel *license = new QLabel(gplText);
+  license->setStyleSheet("QLabel { font-family: monospace; "
+                     "background-color : white; }");
+  licenseScroll = new QScrollArea();
+  licenseScroll->setWidget(license);
+
+  connect(licenseScroll->verticalScrollBar(), SIGNAL(sliderPressed()),
+          this, SLOT(noMoreScroll()));
+  tabs = new QTabWidget();
+  connect(tabs, SIGNAL(currentChanged(int)), this, SLOT(checkTab(int)));
+  tabs->addTab(releaseInfoScroll, "Release Info");
+  tabs->addTab(licenseScroll, "License");
+
+  layout->addLayout(topLayout);
+  layout->addWidget(tabs);
+  setLayout(layout);
+
+  scrollState = 0; // 0 = initial state
+                   // 1 = initiate scroll
+                   // 2 = scroll 1 step
+                   // 3 = no more scroll
+
+  scrollTimer = new QTimer();
+  scrollTimer->setSingleShot(true);
+  connect(scrollTimer, SIGNAL(timeout()), this, SLOT(scroll()));
+}
+
+void AboutBox::mousePressEvent(QMouseEvent * event)
+{
+  if(event) { // TODO: Perhaps do a mouse click check on the event
+    accept();
+  }
+}
+
+void AboutBox::scroll()
+{
+  switch(scrollState) {
+  case 0 : // 0 = initial state
+    scrollState = 1;
+    scrollTimer->setInterval(5000);
+    scrollTimer->start();
+    break;
+  case 1 : // 1 = initiate scroll
+    scrollState = 2;
+    licenseScroll->verticalScrollBar()->setValue(0);
+    scrollTimer->setInterval(200);
+    scrollTimer->start();
+    break;
+  case 2 : // 2 = scroll 1 step
+    licenseScroll->verticalScrollBar()->
+      setValue(licenseScroll->verticalScrollBar()->value() + 2);
+    if(licenseScroll->verticalScrollBar()->value() >=
+       licenseScroll->verticalScrollBar()->maximum()) {
+      scrollState = 0;
+    }
+    scrollTimer->start();
+    break;
+  case 3 : // 3 = no more scroll
+    scrollTimer->stop();
+    break;
+  }
+}
+
+void AboutBox::noMoreScroll()
+{
+  scrollState = 3;
+}
+
+void AboutBox::checkTab(int tabIndex)
+{
+  if(tabIndex == 1) {
+    scrollState = 0;
+    scrollTimer->stop();
+    scroll();
+  }
+}