QmlDesigner: Add image cache

The image cache is saving images and icon of this images in a sqlite
database. If there are no images they are generated in the backgound.
The icons are fetched by item library.

Task-number: QDS-2782
Task-number: QDS-2783
Task-number: QDS-2858
Change-Id: I5a32cccfef7f8fd8eb78902605a09f5da18ce88e
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

8 files changed, 149 insertions, 4 deletions

diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/instances.pri b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/instances.pri
index 85de00c5ff..448a67c913 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/instances.pri
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/instances.pri
@@ -9,6 +9,7 @@ HEADERS += $$PWD/qt5nodeinstanceserver.h \
     $$PWD/capturenodeinstanceserverdispatcher.h \
     $$PWD/capturescenecreatedcommand.h \
     $$PWD/nodeinstanceserverdispatcher.h \
+    $$PWD/qt5captureimagenodeinstanceserver.h \
     $$PWD/qt5capturepreviewnodeinstanceserver.h \
     $$PWD/qt5testnodeinstanceserver.h \
     $$PWD/qt5informationnodeinstanceserver.h \
@@ -33,11 +34,13 @@ HEADERS += $$PWD/qt5nodeinstanceserver.h \
     $$PWD/layoutnodeinstance.h \
     $$PWD/qt3dpresentationnodeinstance.h \
     $$PWD/quick3dnodeinstance.h \
-    $$PWD/quick3dtexturenodeinstance.h
+    $$PWD/quick3dtexturenodeinstance.h \
+
 
 SOURCES += $$PWD/qt5nodeinstanceserver.cpp \
     $$PWD/capturenodeinstanceserverdispatcher.cpp \
     $$PWD/nodeinstanceserverdispatcher.cpp \
+    $$PWD/qt5captureimagenodeinstanceserver.cpp \
     $$PWD/qt5capturepreviewnodeinstanceserver.cpp \
     $$PWD/qt5testnodeinstanceserver.cpp \
     $$PWD/qt5informationnodeinstanceserver.cpp \
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstanceserverdispatcher.cpp b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstanceserverdispatcher.cpp
index dd9c42c5bd..eb5aae6a7e 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstanceserverdispatcher.cpp
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstanceserverdispatcher.cpp
@@ -25,6 +25,7 @@
 
 #include "nodeinstanceserverdispatcher.h"
 
+#include "qt5captureimagenodeinstanceserver.h"
 #include "qt5capturepreviewnodeinstanceserver.h"
 #include "qt5informationnodeinstanceserver.h"
 #include "qt5rendernodeinstanceserver.h"
@@ -183,6 +184,8 @@ std::unique_ptr<NodeInstanceServer> createNodeInstanceServer(
 {
     if (serverName == "capturemode")
         return std::make_unique<Qt5CapturePreviewNodeInstanceServer>(nodeInstanceClient);
+    else if (serverName == "captureiconmode")
+        return std::make_unique<Qt5CaptureImageNodeInstanceServer>(nodeInstanceClient);
     else if (serverName == "rendermode")
         return std::make_unique<Qt5RenderNodeInstanceServer>(nodeInstanceClient);
     else if (serverName == "editormode")
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5captureimagenodeinstanceserver.cpp b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5captureimagenodeinstanceserver.cpp
new file mode 100644
index 0000000000..d24c4e5552
--- /dev/null
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5captureimagenodeinstanceserver.cpp
@@ -0,0 +1,84 @@
+/****************************************************************************
+**
+** 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 "qt5captureimagenodeinstanceserver.h"
+#include "servernodeinstance.h"
+
+#include <captureddatacommand.h>
+#include <createscenecommand.h>
+#include <nodeinstanceclientinterface.h>
+
+#include <QImage>
+#include <QQuickItem>
+#include <QQuickView>
+
+namespace QmlDesigner {
+
+namespace {
+
+QImage renderImage(ServerNodeInstance rootNodeInstance)
+{
+    rootNodeInstance.updateDirtyNodeRecursive();
+
+    QSize previewImageSize = rootNodeInstance.boundingRect().size().toSize();
+    if (previewImageSize.isEmpty())
+        previewImageSize = {640, 480};
+
+    if (previewImageSize.width() > 800 || previewImageSize.height() > 800)
+        previewImageSize.scale({800, 800}, Qt::KeepAspectRatio);
+
+    QImage previewImage = rootNodeInstance.renderPreviewImage(previewImageSize);
+
+    return previewImage;
+}
+} // namespace
+
+void Qt5CaptureImageNodeInstanceServer::collectItemChangesAndSendChangeCommands()
+{
+    static bool inFunction = false;
+
+    if (!rootNodeInstance().holdsGraphical()) {
+        nodeInstanceClient()->capturedData(CapturedDataCommand{});
+        return;
+    }
+
+    if (!inFunction) {
+        inFunction = true;
+
+        auto rooNodeInstance = rootNodeInstance();
+        rooNodeInstance.rootQuickItem()->setClip(true);
+
+        DesignerSupport::polishItems(quickView());
+
+        QImage image = renderImage(rooNodeInstance);
+
+        nodeInstanceClient()->capturedData(CapturedDataCommand{std::move(image)});
+
+        slowDownRenderTimer();
+        inFunction = false;
+    }
+}
+
+} // namespace
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5captureimagenodeinstanceserver.h b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5captureimagenodeinstanceserver.h
new file mode 100644
index 0000000000..7c26e47a87
--- /dev/null
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5captureimagenodeinstanceserver.h
@@ -0,0 +1,45 @@
+/****************************************************************************
+**
+** 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.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <qt5previewnodeinstanceserver.h>
+
+namespace QmlDesigner {
+
+class Qt5CaptureImageNodeInstanceServer : public Qt5PreviewNodeInstanceServer
+{
+public:
+    explicit Qt5CaptureImageNodeInstanceServer(NodeInstanceClientInterface *nodeInstanceClient)
+        : Qt5PreviewNodeInstanceServer(nodeInstanceClient)
+    {}
+
+protected:
+    void collectItemChangesAndSendChangeCommands() override;
+
+private:
+};
+
+} // namespace QmlDesigner
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5capturepreviewnodeinstanceserver.cpp b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5capturepreviewnodeinstanceserver.cpp
index c70ef76afe..7fb87defb0 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5capturepreviewnodeinstanceserver.cpp
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5capturepreviewnodeinstanceserver.cpp
@@ -100,7 +100,7 @@ void Qt5CapturePreviewNodeInstanceServer::collectItemChangesAndSendChangeCommand
             stateInstance.deactivateState();
         }
 
-        nodeInstanceClient()->capturedData(CapturedDataCommand{stateDatas});
+        nodeInstanceClient()->capturedData(CapturedDataCommand{std::move(stateDatas)});
 
         slowDownRenderTimer();
         inFunction = false;
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5nodeinstanceclientproxy.cpp b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5nodeinstanceclientproxy.cpp
index 64b6eb409c..93e6e786cd 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5nodeinstanceclientproxy.cpp
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5nodeinstanceclientproxy.cpp
@@ -28,6 +28,7 @@
 #include <QCoreApplication>
 
 #include "capturenodeinstanceserverdispatcher.h"
+#include "qt5captureimagenodeinstanceserver.h"
 #include "qt5capturepreviewnodeinstanceserver.h"
 #include "qt5informationnodeinstanceserver.h"
 #include "qt5previewnodeinstanceserver.h"
@@ -92,6 +93,9 @@ Qt5NodeInstanceClientProxy::Qt5NodeInstanceClientProxy(QObject *parent) :
     } else if (QCoreApplication::arguments().at(2) == QLatin1String("capturemode")) {
         setNodeInstanceServer(std::make_unique<Qt5CapturePreviewNodeInstanceServer>(this));
         initializeSocket();
+    } else if (QCoreApplication::arguments().at(2) == QLatin1String("captureiconmode")) {
+        setNodeInstanceServer(std::make_unique<Qt5CaptureImageNodeInstanceServer>(this));
+        initializeSocket();
     }
 }
 
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/quickitemnodeinstance.cpp b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/quickitemnodeinstance.cpp
index bfaff0eea8..1f54bffdbd 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/quickitemnodeinstance.cpp
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/quickitemnodeinstance.cpp
@@ -566,7 +566,7 @@ QRectF QuickItemNodeInstance::boundingRectWithStepChilds(QQuickItem *parentItem)
 
     boundingRect = boundingRect.united(QRectF(QPointF(0, 0), size()));
 
-    foreach (QQuickItem *childItem, parentItem->childItems()) {
+    for (QQuickItem *childItem : parentItem->childItems()) {
         if (!nodeInstanceServer()->hasInstanceForObject(childItem)) {
             QRectF transformedRect = childItem->mapRectToItem(parentItem, boundingRectWithStepChilds(childItem));
             if (isRectangleSane(transformedRect))
@@ -574,6 +574,9 @@ QRectF QuickItemNodeInstance::boundingRectWithStepChilds(QQuickItem *parentItem)
         }
     }
 
+    if (boundingRect.isEmpty())
+        QRectF{0, 0, 640, 480};
+
     return boundingRect;
 }
 
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/qml2puppetmain.cpp b/share/qtcreator/qml/qmlpuppet/qml2puppet/qml2puppetmain.cpp
index 98df3de295..1f94bc3e59 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/qml2puppetmain.cpp
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/qml2puppetmain.cpp
@@ -42,9 +42,11 @@
 #endif
 
 #ifdef Q_OS_WIN
-#include <windows.h>
+#include <Windows.h>
 #endif
 
+namespace {
+
 int internalMain(QGuiApplication *application)
 {
     QCoreApplication::setOrganizationName("QtProject");
@@ -138,6 +140,7 @@ int internalMain(QGuiApplication *application)
 
     return application->exec();
 }
+} // namespace
 
 int main(int argc, char *argv[])
 {