Update welcome screen

Welcome screen is now simply a single screen instead of a multi-screen
tutorial. A button was added to open getting started documentation.
Note: Font family is not correct, to be fixed later.

Task-number: QT3DS-2239
Change-Id: I98e8d07d72ce33c433a187d989f36d10d09a4ec8
Reviewed-by: Tomi Korpipää <tomi.korpipaa@qt.io>

1 files changed, 32 insertions, 198 deletions

diff --git a/src/Authoring/Studio/Application/StudioTutorialWidget.cpp b/src/Authoring/Studio/Application/StudioTutorialWidget.cpp
index c6240531..bb80e7bf 100644
--- a/src/Authoring/Studio/Application/StudioTutorialWidget.cpp
+++ b/src/Authoring/Studio/Application/StudioTutorialWidget.cpp
@@ -28,165 +28,69 @@
 #include "StudioTutorialWidget.h"
 #include "ui_StudioTutorialWidget.h"
 #include "StudioUtils.h"
+#include "StudioApp.h"
+#include "StudioPreferences.h"
 #include <QtWidgets/qdesktopwidget.h>
 #include <QtGui/qpainter.h>
+#include <QtGui/qbrush.h>
+#include <QtCore/qtimer.h>
+#include <QtGui/qdesktopservices.h>
+#include <QtCore/qurl.h>
 
-StudioTutorialWidget::StudioTutorialWidget(QWidget *parent, bool goToFileDialog,
-                                           bool showProjectButtons) :
+StudioTutorialWidget::StudioTutorialWidget(QWidget *parent) :
     QDialog(parent, Qt::MSWindowsFixedSizeDialogHint),
-    m_ui(new Ui::StudioTutorialWidget),
-    m_welcomeImages(0),
-    m_imgIter(0),
-    m_palette(0),
-    m_displayScale(1.0),
-    m_showProjectButtons(showProjectButtons)
+    m_ui(new Ui::StudioTutorialWidget)
 {
     m_ui->setupUi(this);
 
-    connect(m_ui->studioTutorialBack, &QPushButton::clicked, this,
-            &StudioTutorialWidget::handleBack);
-    connect(m_ui->studioTutorialForward, &QPushButton::clicked, this,
-            &StudioTutorialWidget::handleFwd);
-    connect(m_ui->pageIndicator, &StudioTutorialPageIndicator::indexChanged, this,
-            &StudioTutorialWidget::handleIndexChange);
     connect(m_ui->studioTutorialShowAgain, &QCheckBox::stateChanged, this,
             &StudioTutorialWidget::handleDoNotShowAgainChange);
     connect(m_ui->studioTutorialNew, &QPushButton::clicked, this,
             &StudioTutorialWidget::handleCreateNew);
     connect(m_ui->studioTutorialOpen, &QPushButton::clicked, this,
             &StudioTutorialWidget::handleOpenSample);
+    connect(m_ui->studioTutorialQuickStart, &QPushButton::clicked, this,
+            &StudioTutorialWidget::handleQuickStartGuide);
 
-    OnInitDialog(goToFileDialog);
+    QTimer::singleShot(0, this, &StudioTutorialWidget::OnInitDialog);
 
-    if (m_showProjectButtons)
-        m_ui->studioTutorialNew->setText(tr("Create New"));
-    else
-        m_ui->studioTutorialNew->setText(tr("OK"));
+    setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
 }
 
 StudioTutorialWidget::~StudioTutorialWidget()
 {
     delete m_ui;
-    delete m_welcomeImages;
-    delete m_palette;
+    delete m_backgroundPalette;
 }
 
-void StudioTutorialWidget::OnInitDialog(bool goToFileDialog)
+void StudioTutorialWidget::OnInitDialog()
 {
-    m_welcomeImages = new QList<QString>();
-
-    // populate welcome screen images
-    getImageList();
-    m_imgIter = m_welcomeImages->begin();
-    m_imgIterPrev = m_imgIter;
-    m_pageOutPixmap = getScaledPic(m_imgIterPrev);
-    m_pageInPixmap = getScaledPic(m_imgIter);
-    m_backgroundPixmap = QPixmap(":/images/Tutorial/background.png");
-
-    // based on background PNG, get the scale that we need to fit welcome
-    // screen and buttons comfortably on display
-    m_displayScale = getDisplayScalingForImage(m_backgroundPixmap);
-    QSize backgroundSize = m_backgroundPixmap.size();
+    QSize backgroundSize = size();
     QRect screenRect = QApplication::desktop()->availableGeometry(
                 QApplication::desktop()->screenNumber(this));
     QSize windowSize = screenRect.size();
 
-    m_ui->verticalWidget->setFixedSize(backgroundSize);
-
     move(screenRect.x() + (windowSize.width() - backgroundSize.width()) / 2,
          screenRect.y() + (windowSize.height() - backgroundSize.height()) / 2);
 
-    // do we go straight to last page with file dialog buttons?
-    int initPage = goToFileDialog ? m_welcomeImages->size() - 1 : 0;
-    m_imgIter = m_welcomeImages->begin() + initPage;
-    updateButtons();
+    setFixedSize(backgroundSize);
 
     QSettings settings;
     m_ui->studioTutorialShowAgain->setChecked(!settings.value("showWelcomeScreen").toBool());
-
-    setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
-}
-
-void StudioTutorialWidget::paintEvent(QPaintEvent *event)
-{
-    Q_UNUSED(event)
-
-    QPainter painter(this);
-
-    if (!m_palette) {
-        m_palette = new QPalette;
-        m_palette->setBrush(QPalette::Window, m_backgroundPixmap);
-        setPalette(*m_palette);
-        resize(m_backgroundPixmap.size());
-        setFixedSize(size());
-    }
-
-    // Make tutorial images to scale to full background width, vertically centered,
-    // while keeping correct aspect ratio
-    qreal aspectRatio = (qreal) m_pageInPixmap.height() / m_pageInPixmap.width();
-    int rectHeight = size().width() * aspectRatio;
-    QRect rect(0, (size().height() / 2) - (rectHeight / 2),
-               size().width(), rectHeight);
-
-    qreal pageOutOpacity = 1.0 - m_pageInOpacity;
-
-    if (pageOutOpacity > 0.0) {
-        painter.setOpacity(pageOutOpacity);
-        painter.drawPixmap(rect, m_pageOutPixmap);
-    }
-    if (m_pageInOpacity > 0.0) {
-        painter.setOpacity(m_pageInOpacity);
-        painter.drawPixmap(rect, m_pageInPixmap);
-    }
-
-    if (m_pageInOpacity < 1.0) {
-        // Page switching animation still going on
-        qreal opacityAnimationStep = qreal(m_opacityTime.restart()) / 300.0;
-        m_pageInOpacity += opacityAnimationStep;
-        m_pageInOpacity = qMin(m_pageInOpacity, 1.0);
-        update();
-    }
-}
-
-void StudioTutorialWidget::animateInOut()
-{
-    m_pageOutPixmap = getScaledPic(m_imgIterPrev);
-    m_pageInPixmap = getScaledPic(m_imgIter);
-    m_pageInOpacity = 0.0;
-    m_opacityTime.start();
-    update();
-}
-
-void StudioTutorialWidget::handleFwd()
-{
-    if (*m_imgIter != m_welcomeImages->last()) {
-        m_imgIterPrev = m_imgIter;
-        m_imgIter++;
-        updateButtons();
-        animateInOut();
-    }
-}
-
-void StudioTutorialWidget::handleBack()
-{
-    if (*m_imgIter != m_welcomeImages->first()) {
-        m_imgIterPrev = m_imgIter;
-        m_imgIter--;
-        updateButtons();
-        animateInOut();
-    }
+    m_backgroundPalette = new QPalette(palette());
+    QPixmap background(size());
+    QPainter backgroundPainter(&background);
+    QLinearGradient gradient = CStudioPreferences::welcomeBackgroundGradient();
+    gradient.setFinalStop(background.width(), 0.0);
+    backgroundPainter.fillRect(background.rect(), gradient);
+    QPixmap laptop(":/images/welcomedialog/laptop.png");
+    backgroundPainter.drawPixmap(0, 100, laptop.width(), laptop.height(), laptop);
+    backgroundPainter.end();
+    m_backgroundPalette->setBrush(backgroundRole(), QBrush(background));
+    setAutoFillBackground(true);
+    setPalette(*m_backgroundPalette);
 }
 
-void StudioTutorialWidget::handleIndexChange(int index)
-{
-    index = qBound(0, index, m_welcomeImages->size() - 1);
-    if (index != page()) {
-        m_imgIterPrev = m_imgIter;
-        m_imgIter = m_welcomeImages->begin() + index;
-        updateButtons();
-        animateInOut();
-    }
-}
 
 void StudioTutorialWidget::handleDoNotShowAgainChange(int state)
 {
@@ -205,79 +109,9 @@ void StudioTutorialWidget::handleCreateNew()
     this->done(StudioTutorialWidget::createNewResult);
 }
 
-void StudioTutorialWidget::getImageList()
-{
-    QString imagePath = QStringLiteral(":/images/Tutorial/screens/1x");
-
-    // Use @2x images for hiDPI displays
-    if (devicePixelRatio() > 1.0)
-        imagePath = QStringLiteral(":/images/Tutorial/screens/2x");
-
-    QDirIterator *it = new QDirIterator(imagePath, QDirIterator::NoIteratorFlags);
-
-    while (it->hasNext())
-        m_welcomeImages->append(it->next());
-
-    m_ui->pageIndicator->setCount(m_welcomeImages->size());
-}
-
-int StudioTutorialWidget::page() const
+void StudioTutorialWidget::handleQuickStartGuide()
 {
-    int i = 0;
-    QList<QString>::iterator iter = m_welcomeImages->begin();
-    while (iter != m_imgIter) { ++i; iter++; }
-    return i;
-}
-
-QPixmap StudioTutorialWidget::getScaledPic(const QList<QString>::iterator &iter)
-{
-    QPixmap picOrig = QPixmap(*iter);
-    QPixmap pic = picOrig;
-    if (m_displayScale < 1.0) {
-        // Limit to the maximum size of @2x images
-        pic = picOrig.scaledToHeight(qMin(1200.0, m_displayScale * picOrig.height()),
-                                     Qt::SmoothTransformation);
-    }
-
-    pic.setDevicePixelRatio(devicePixelRatio());
-    return pic;
-}
-
-qreal StudioTutorialWidget::getDisplayScalingForImage(const QPixmap &picOrig)
-{
-    // Note that high DPI scaling has an effect on the display
-    // resolution returned by QApplication::desktop()->availableGeometry().
-    // DPI scaling factor is integer and taken from the primary screen.
-    // When running studio on secondary monitor with different DPI,
-    // or running it on primary with non-integer scaling, we might
-    // get different dialog size than intended.
-    QSize displaySize = QApplication::desktop()->availableGeometry(
-                QApplication::desktop()->screenNumber(this)).size();
-
-    // Scale down if images do not fit on screen, otherwise use
-    // 1:1 PNGs to avoid scaling artifacts. Scale to 90% of the display size if scaling is needed.
-    if (picOrig.height() > displaySize.height() || picOrig.width() > displaySize.width()) {
-        QSize picScaledSize = picOrig.size();
-        picScaledSize.scale(displaySize * 0.9, Qt::KeepAspectRatio);
-        m_displayScale = qMin((qreal)picScaledSize.height() / (qreal)picOrig.height(),
-                              (qreal)picScaledSize.width() / (qreal)picOrig.width());
-        return m_displayScale;
-    } else {
-        return 1.0;
-    }
-}
-
-void StudioTutorialWidget::updateButtons()
-{
-    bool isFirst = (*m_imgIter == m_welcomeImages->first());
-    bool isLast = (*m_imgIter == m_welcomeImages->last());
-
-    m_ui->studioTutorialBack->setVisible(!isFirst);
-    m_ui->studioTutorialForward->setVisible(!isLast);
-    m_ui->studioTutorialOpen->setVisible(isLast && m_showProjectButtons);
-    m_ui->studioTutorialNew->setVisible(isLast);
-    m_ui->studioTutorialShowAgain->setVisible(isFirst);
-    m_ui->checkBoxLabel->setVisible(isFirst);
-
-    m_ui->pageIndicator->setCurrentIndex(page());
+    QFile theFile(g_StudioApp.m_gettingStartedFilePath);
+    if (theFile.exists())
+        QDesktopServices::openUrl(QUrl::fromLocalFile(theFile.fileName()));
 }