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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "StudioTutorialWidget.h"
#include "ui_StudioTutorialWidget.h"
#include "StudioUtils.h"
StudioTutorialWidget::StudioTutorialWidget(QWidget *parent, bool goToFileDialog,
bool showProjectButtons) :
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->setupUi(this);
connect(m_ui->studioTutorialBack, &QPushButton::clicked, this,
&StudioTutorialWidget::handleBack);
connect(m_ui->studioTutorialForward, &QPushButton::clicked, this,
&StudioTutorialWidget::handleFwd);
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);
OnInitDialog(goToFileDialog);
}
StudioTutorialWidget::~StudioTutorialWidget()
{
delete m_ui;
delete m_welcomeImages;
delete m_palette;
}
void StudioTutorialWidget::OnInitDialog(bool goToFileDialog)
{
m_welcomeImages = new QList<QString>();
// populate welcome screen images
getImageList();
m_imgIter = m_welcomeImages->begin();
// do we go straight to last page with file dialog buttons?
int page = goToFileDialog ? m_welcomeImages->size() - 1 : 0;
// based on first PNG, get the scale that we need to fit welcome
// screen and buttons comfortably on display
m_displayScale = getDisplayScalingForImage(m_imgIter);
m_ui->verticalWidget->setMaximumSize(m_displayScale * size());
if (!m_welcomeImages->isEmpty()) {
for (int i = 0; i < page && m_imgIter != m_welcomeImages->end(); ++i)
m_imgIter++;
m_ui->studioTutorialShowAgain->setVisible(false);
if (*m_imgIter == m_welcomeImages->last() || m_imgIter == m_welcomeImages->end()) {
if (m_imgIter == m_welcomeImages->end())
m_imgIter--;
m_ui->studioTutorialForward->setVisible(false);
m_ui->studioTutorialOpen->setVisible(true);
m_ui->studioTutorialNew->setVisible(true);
} else {
if (m_imgIter == m_welcomeImages->begin()) {
m_ui->studioTutorialBack->setVisible(false);
m_ui->studioTutorialShowAgain->setVisible(true);
}
m_ui->studioTutorialOpen->setVisible(false);
m_ui->studioTutorialNew->setVisible(false);
}
}
QSettings settings;
m_ui->studioTutorialShowAgain->setChecked(!settings.value("showWelcomeScreen").toBool());
setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
}
void StudioTutorialWidget::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event)
if (m_palette)
return;
m_palette = new QPalette;
QPixmap pic = getScaledPic(m_imgIter);
m_palette->setBrush(QPalette::Window, pic);
setPalette(*m_palette);
// assume all welcome screen images are sized the same
resize(pic.size());
setFixedSize(size());
// If the dialog was originally larger than the screen, it will be placed into the
// top-left corner. Adjust its position after resizing.
if (m_displayScale < 1.0) {
QSize windowSize = GetAvailableDisplaySize(getWidgetScreen(this));
QSize welcomeSize = size();
move((windowSize.width() - welcomeSize.width()) / 2,
(windowSize.height() - welcomeSize.height()) / 2);
}
}
void StudioTutorialWidget::handleFwd()
{
if (*m_imgIter != m_welcomeImages->last()) {
QPixmap pic = getNextScaledPic();
m_palette->setBrush(QPalette::Window, pic);
setPalette(*m_palette);
m_ui->studioTutorialBack->setVisible(true);
m_ui->studioTutorialShowAgain->setVisible(false);
}
if (*m_imgIter == m_welcomeImages->last()) {
m_ui->studioTutorialForward->setVisible(false);
m_ui->studioTutorialOpen->setVisible(m_showProjectButtons);
if (m_showProjectButtons)
m_ui->studioTutorialNew->setText(tr("Create New"));
else
m_ui->studioTutorialNew->setText(tr("OK"));
m_ui->studioTutorialNew->setVisible(true);
}
}
void StudioTutorialWidget::handleBack()
{
if (*m_imgIter != m_welcomeImages->first()) {
QPixmap pic = getPrevScaledPic();
m_palette->setBrush(QPalette::Window, pic);
setPalette(*m_palette);
m_ui->studioTutorialForward->setVisible(true);
m_ui->studioTutorialShowAgain->setVisible(false);
m_ui->studioTutorialOpen->setVisible(false);
m_ui->studioTutorialNew->setVisible(false);
}
if (*m_imgIter == m_welcomeImages->first()) {
m_ui->studioTutorialBack->setVisible(false);
m_ui->studioTutorialShowAgain->setVisible(true);
}
}
void StudioTutorialWidget::handleDoNotShowAgainChange(int state)
{
QSettings settings;
const bool show = !(state == Qt::Checked);
settings.setValue("showWelcomeScreen", show);
}
void StudioTutorialWidget::handleOpenSample()
{
this->done(StudioTutorialWidget::openSampleResult);
}
void StudioTutorialWidget::handleCreateNew()
{
this->done(StudioTutorialWidget::createNewResult);
}
void StudioTutorialWidget::getImageList()
{
QDirIterator *it = new QDirIterator(":/images/Tutorial/screens/",
QDirIterator::NoIteratorFlags);
while (it->hasNext())
m_welcomeImages->append(it->next());
}
int StudioTutorialWidget::page() const
{
int i = 0;
QList<QString>::iterator iter = m_welcomeImages->begin();
while (iter != m_imgIter) { ++i; iter++; }
return i;
}
QPixmap StudioTutorialWidget::getNextScaledPic()
{
return getScaledPic(++m_imgIter);
}
QPixmap StudioTutorialWidget::getPrevScaledPic()
{
return getScaledPic(--m_imgIter);
}
QPixmap StudioTutorialWidget::getScaledPic(QList<QString>::iterator iter)
{
QPixmap picOrig = QPixmap(*iter);
QPixmap pic = picOrig.scaledToHeight(m_displayScale * picOrig.height(),
Qt::SmoothTransformation);
pic.setDevicePixelRatio(devicePixelRatio());
return pic;
}
qreal StudioTutorialWidget::getDisplayScalingForImage(QList<QString>::iterator iter)
{
QPixmap picOrig = QPixmap(*iter);
// Set the splash screen to 80% of display size.
// Note that high DPI scaling has an effect on the display
// resolution returned by GetAvailableDisplaySize().
// 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 = GetAvailableDisplaySize(getWidgetScreen(this)) * 0.8;
// scale down if images do not fit on screen, otherwise use
// 1:1 PNGs to avoid scaling artifacts
if (picOrig.height() > displaySize.height() ||
picOrig.width() > displaySize.width()) {
QSize picScaledSize = picOrig.size();
picScaledSize.scale(displaySize, Qt::KeepAspectRatio);
m_displayScale = qMin((qreal)picScaledSize.height() / (qreal)picOrig.height(),
(qreal)picScaledSize.width() / (qreal)picOrig.width());
return m_displayScale;
} else {
return 1.0;
}
}
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