Basic Q3A patch downloading.

installwizard.cpp

@@ -1,3 +1,4 @@
+#include <QPushButton>
 #include "installwizard.h"
 #include "ui_installwizard.h"
 #include "installwizard_installtype.h"
@@ -11,7 +12,17 @@ InstallWizard::InstallWizard(QWidget *parent, Settings *settings) :
     ui(new Ui::InstallWizard),
     settings(settings)
 {
+    setOptions(QWizard::NoCancelButton | QWizard::HaveCustomButton1);
+    cancelButton = new QPushButton("Cancel");
+    setButton(QWizard::CustomButton1, cancelButton);
+
+    QList<QWizard::WizardButton> layout;
+    layout << QWizard::BackButton << QWizard::CustomButton1 << QWizard::Stretch << QWizard::NextButton << QWizard::FinishButton;
+    setButtonLayout(layout);
+
     ui->setupUi(this);
+    connect(cancelButton, SIGNAL(clicked()), this, SLOT(cancel()));
+
     setPage(Page_InstallType, new InstallWizard_InstallType(this));
 
 #ifdef Q_OS_WIN32
@@ -27,6 +38,16 @@ InstallWizard::~InstallWizard()
     delete ui;
 }
 
+void InstallWizard::cancel()
+{
+    if (currentId() == Page_Patch)
+    {
+        ((InstallWizard_Patch *)currentPage())->cancel();
+    }
+
+    reject();
+}
+
 void InstallWizard::on_InstallWizard_customButtonClicked(int which)
 {
     if (which == QWizard::FinishButton)

installwizard.h

@@ -7,6 +7,7 @@ namespace Ui {
 class InstallWizard;
 }
 
+class QPushButton;
 class Settings;
 
 class InstallWizard : public QWizard
@@ -26,10 +27,12 @@ public:
     };
 
 private slots:
+    void cancel();
     void on_InstallWizard_customButtonClicked(int which);
 
 private:
     Ui::InstallWizard *ui;
+    QPushButton *cancelButton;
     Settings *settings;
 };
 

installwizard_patch.cpp

@@ -1,14 +1,82 @@
+#include <QNetworkRequest>
+#include <QNetworkReply>
 #include "installwizard_patch.h"
 #include "ui_installwizard_patch.h"
+#include "installwizard.h"
 
 InstallWizard_Patch::InstallWizard_Patch(QWidget *parent) :
     QWizardPage(parent),
-    ui(new Ui::InstallWizard_Patch)
+    ui(new Ui::InstallWizard_Patch),
+    patchFile(NULL),
+    networkReply(NULL),
+    isCancelled(false),
+    isDownloadFinished(false)
 {
     ui->setupUi(this);
 }
 
 InstallWizard_Patch::~InstallWizard_Patch()
 {
+    delete patchFile;
     delete ui;
 }
+
+void InstallWizard_Patch::initializePage()
+{
+    isCancelled = isDownloadFinished = false;
+
+    patchFile = new QTemporaryFile;
+    patchFile->open();
+
+    networkReply = nam.get(QNetworkRequest(QUrl("http://localhost:8080/linuxq3apoint-1.32b-3.x86.run")));
+    connect(networkReply, SIGNAL(readyRead()), this, SLOT(downloadRead()));
+    connect(networkReply, SIGNAL(downloadProgress(qint64,qint64)), this, SLOT(downloadProgress(qint64,qint64)));
+    connect(networkReply, SIGNAL(finished()), this, SLOT(downloadFinished()));
+}
+
+void InstallWizard_Patch::cleanupPage()
+{
+    cancel();
+}
+
+bool InstallWizard_Patch::isComplete() const
+{
+    return isDownloadFinished;
+}
+
+void InstallWizard_Patch::cancel()
+{
+    if (isCancelled)
+        return;
+
+    delete patchFile;
+    patchFile = NULL;
+    networkReply->abort();
+    isCancelled = true;
+}
+
+void InstallWizard_Patch::downloadRead()
+{
+    patchFile->write(networkReply->readAll());
+}
+
+void InstallWizard_Patch::downloadProgress(qint64 bytesRead, qint64 bytesTotal)
+{
+    ui->lblStatus->setText(QString("Downloading %1MB / %2MB").arg(bytesRead / 1024.0 / 1024.0, 0, 'f', 2).arg(bytesTotal / 1024.0 / 1024.0, 0, 'f', 2));
+    ui->pbProgress->setMaximum((int)bytesTotal);
+    ui->pbProgress->setValue((int)bytesRead);
+}
+
+void InstallWizard_Patch::downloadFinished()
+{
+    Q_ASSERT(networkReply);
+
+    if (!isCancelled && networkReply->error())
+    {
+        ui->lblStatus->setText(networkReply->errorString());
+    }
+
+    networkReply->deleteLater();
+    isDownloadFinished = true;
+    emit completeChanged();
+}

installwizard_patch.h

@@ -1,6 +1,8 @@
 #ifndef INSTALLWIZARD_PATCH_H
 #define INSTALLWIZARD_PATCH_H
 
+#include <QNetworkAccessManager>
+#include <QTemporaryFile>
 #include <QWizardPage>
 
 namespace Ui {
@@ -14,9 +16,23 @@ class InstallWizard_Patch : public QWizardPage
 public:
     explicit InstallWizard_Patch(QWidget *parent = 0);
     ~InstallWizard_Patch();
+    virtual void initializePage();
+    virtual void cleanupPage();
+    virtual bool isComplete() const;
+    void cancel();
+
+private slots:
+    void downloadRead();
+    void downloadProgress(qint64 bytesRead, qint64 bytesTotal);
+    void downloadFinished();
 
 private:
     Ui::InstallWizard_Patch *ui;
+    QTemporaryFile *patchFile;
+    QNetworkAccessManager nam;
+    QNetworkReply *networkReply;
+    bool isCancelled;
+    bool isDownloadFinished;
 };
 
 #endif // INSTALLWIZARD_PATCH_H

installwizard_patch.ui

@@ -16,6 +16,28 @@
   <property name="title">
    <string>Installing Patch...</string>
   </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QLabel" name="lblStatus">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="text">
+      <string/>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QProgressBar" name="pbProgress">
+     <property name="value">
+      <number>0</number>
+     </property>
+    </widget>
+   </item>
+  </layout>
  </widget>
  <resources/>
  <connections/>

launch.pro

@@ -4,7 +4,7 @@
 #
 #-------------------------------------------------
 
-QT       += core gui
+QT       += core gui network
 
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets