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/****************************************************************************
**
** Copyright (C) 2020 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** 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.
**
****************************************************************************/
#include "iconrenderer.h"
#include "../editor3d/selectionboxgeometry.h"
#include "../editor3d/generalhelper.h"
#include <QtQml/qqmlcomponent.h>
#include <QtQml/qqmlengine.h>
#include <QtQml/qqmlproperty.h>
#include <QtQml/qqmlcontext.h>
#include <QtQuick/qquickview.h>
#include <QtQuick/qquickitem.h>
#include <QtGui/qsurfaceformat.h>
#include <QtGui/qimage.h>
#include <QtGui/qguiapplication.h>
#include <QtCore/qtimer.h>
#include <QtCore/qfileinfo.h>
#include <QtCore/qdir.h>
#ifdef QUICK3D_MODULE
#include <QtQuick3D/private/qquick3dnode_p.h>
#include <QtQuick3D/private/qquick3dviewport_p.h>
#endif
#include <private/qquickdesignersupportitems_p.h>
IconRenderer::IconRenderer(int size, const QString &filePath, const QString &source)
: QObject(nullptr)
, m_size(size)
, m_filePath(filePath)
, m_source(source)
{
}
void IconRenderer::setupRender()
{
DesignerSupport::activateDesignerMode();
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
DesignerSupport::activateDesignerWindowManager();
#endif
m_quickView = new QQuickView;
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
QSurfaceFormat surfaceFormat = m_quickView->requestedFormat();
surfaceFormat.setVersion(4, 1);
surfaceFormat.setProfile(QSurfaceFormat::CoreProfile);
m_quickView->setFormat(surfaceFormat);
DesignerSupport::createOpenGLContext(m_quickView);
#else
m_quickView->setDefaultAlphaBuffer(true);
m_quickView->setColor(Qt::transparent);
m_ratio = m_quickView->devicePixelRatio();
m_quickView->installEventFilter(this);
#endif
QQmlComponent component(m_quickView->engine());
component.loadUrl(QUrl::fromLocalFile(m_source));
QObject *iconItem = component.create();
if (iconItem) {
#ifdef QUICK3D_MODULE
if (auto scene = qobject_cast<QQuick3DNode *>(iconItem)) {
qmlRegisterType<QmlDesigner::Internal::SelectionBoxGeometry>("SelectionBoxGeometry", 1, 0, "SelectionBoxGeometry");
QQmlComponent component(m_quickView->engine());
component.loadUrl(QUrl("qrc:/qtquickplugin/mockfiles/IconRenderer3D.qml"));
m_containerItem = qobject_cast<QQuickItem *>(component.create());
DesignerSupport::setRootItem(m_quickView, m_containerItem);
auto helper = new QmlDesigner::Internal::GeneralHelper();
m_quickView->engine()->rootContext()->setContextProperty("_generalHelper", helper);
m_contentItem = QQmlProperty::read(m_containerItem, "view3D").value<QQuickItem *>();
auto view3D = qobject_cast<QQuick3DViewport *>(m_contentItem);
view3D->setImportScene(scene);
m_is3D = true;
} else
#endif
if (auto scene = qobject_cast<QQuickItem *>(iconItem)) {
m_contentItem = scene;
m_containerItem = new QQuickItem();
m_containerItem->setSize(QSizeF(1024, 1024));
DesignerSupport::setRootItem(m_quickView, m_containerItem);
m_contentItem->setParentItem(m_containerItem);
}
if (m_containerItem && m_contentItem) {
resizeContent(m_size);
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
QTimer::singleShot(0, this, &IconRenderer::createIcon);
#else
m_quickView->show();
m_quickView->lower();
// Failsafe to exit eventually if window fails to expose
QTimer::singleShot(10000, qGuiApp, &QGuiApplication::quit);
#endif
} else {
QTimer::singleShot(0, qGuiApp, &QGuiApplication::quit);
}
} else {
QTimer::singleShot(0, qGuiApp, &QGuiApplication::quit);
}
}
bool IconRenderer::eventFilter(QObject *watched, QEvent *event)
{
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
if (watched == m_quickView && event->type() == QEvent::Expose)
QTimer::singleShot(0, this, &IconRenderer::createIcon);
#else
Q_UNUSED(watched)
Q_UNUSED(event)
#endif
return false;
}
void IconRenderer::createIcon()
{
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
m_designerSupport.refFromEffectItem(m_quickView->rootObject(), false);
#endif
QQuickDesignerSupportItems::disableNativeTextRendering(m_quickView->rootObject());
#ifdef QUICK3D_MODULE
if (m_is3D) {
// Render once to make sure scene is up to date before we set up the selection box
render({});
QMetaObject::invokeMethod(m_containerItem, "setSceneToBox");
int tries = 0;
while (tries < 10) {
++tries;
render({});
QMetaObject::invokeMethod(m_containerItem, "fitAndHideBox");
}
}
#endif
QFileInfo fi(m_filePath);
// Render regular size image
render(fi.absoluteFilePath());
// Render @2x image
resizeContent(m_size * 2);
QString saveFile;
saveFile = fi.absolutePath() + '/' + fi.completeBaseName() + "@2x";
if (!fi.suffix().isEmpty())
saveFile += '.' + fi.suffix();
fi.absoluteDir().mkpath(".");
render(saveFile);
// Allow little time for file operations to finish
QTimer::singleShot(1000, qGuiApp, &QGuiApplication::quit);
}
void IconRenderer::render(const QString &fileName)
{
std::function<void (QQuickItem *)> updateNodesRecursive;
updateNodesRecursive = [&updateNodesRecursive](QQuickItem *item) {
const auto childItems = item->childItems();
for (QQuickItem *childItem : childItems)
updateNodesRecursive(childItem);
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
DesignerSupport::updateDirtyNode(item);
#else
if (item->flags() & QQuickItem::ItemHasContents)
item->update();
#endif
};
updateNodesRecursive(m_quickView->rootObject());
QRect rect(QPoint(), m_contentItem->size().toSize());
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
QImage renderImage = m_designerSupport.renderImageForItem(m_quickView->rootObject(),
rect, rect.size());
#else
QImage renderImage = m_quickView->grabWindow();
#endif
if (!fileName.isEmpty()) {
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
if (m_ratio != 1.) {
rect.setWidth(qRound(rect.size().width() * m_ratio));
rect.setHeight(qRound(rect.size().height() * m_ratio));
}
renderImage = renderImage.copy(rect);
#endif
QFileInfo fi(fileName);
if (fi.suffix().isEmpty())
renderImage.save(fileName, "PNG");
else
renderImage.save(fileName);
}
}
void IconRenderer::resizeContent(int size)
{
int theSize = size;
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
if (m_ratio != 1.)
theSize = qRound(qreal(size) / m_quickView->devicePixelRatio());
#endif
m_contentItem->setSize(QSizeF(theSize, theSize));
if (m_contentItem->width() > m_containerItem->width())
m_containerItem->setWidth(m_contentItem->width());
if (m_contentItem->height() > m_containerItem->height())
m_containerItem->setHeight(m_contentItem->height());
}
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