加入素材库

ArchitectureColoredPainting/ArchitectureColoredPainting.vcxproj

@@ -32,12 +32,12 @@
   </ImportGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="QtSettings">
     <QtInstall>5.15.2_msvc2019_64</QtInstall>
-    <QtModules>core;xml;gui;svg;widgets;core-private;gui-private;widgets-private</QtModules>
+    <QtModules>core;xml;gui;svg;widgets;concurrent;core-private;gui-private;widgets-private</QtModules>
     <QtBuildConfig>debug</QtBuildConfig>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="QtSettings">
     <QtInstall>5.15.2_msvc2019_64</QtInstall>
-    <QtModules>core;xml;gui;svg;widgets;core-private;gui-private;widgets-private</QtModules>
+    <QtModules>core;xml;gui;svg;widgets;concurrent;core-private;gui-private;widgets-private</QtModules>
     <QtBuildConfig>release</QtBuildConfig>
   </PropertyGroup>
   <Target Name="QtMsBuildNotFound" BeforeTargets="CustomBuild;ClCompile" Condition="!Exists('$(QtMsBuild)\qt.targets') or !Exists('$(QtMsBuild)\qt.props')">
@@ -140,9 +140,11 @@
     <ClCompile Include="src\Editor\util\PainterPathUtil.cpp" />
     <ClCompile Include="src\Editor\util\PaintingUtil.cpp" />
     <ClCompile Include="src\Editor\util\SvgFileLoader.cpp" />
+    <ClCompile Include="src\FlowLayout.cpp" />
     <ClCompile Include="src\FluentMenu.cpp" />
     <ClCompile Include="src\FluentMenuButton.cpp" />
     <ClCompile Include="src\gl.c" />
+    <ClCompile Include="src\Library\LibraryWidget.cpp" />
     <ClCompile Include="src\main.cpp" />
     <ClCompile Include="src\MainWindow.cpp" />
     <ClCompile Include="src\NavigationBarWidget.cpp" />
@@ -176,7 +178,9 @@
     <QtUic Include="EditorSettingWidget.ui" />
     <QtUic Include="EditorWidget.ui" />
     <QtUic Include="EditorWidgetItem.ui" />
+    <QtUic Include="LibraryWidget.ui" />
     <QtUic Include="MainWindow.ui" />
+    <QtUic Include="PaintingItem.ui" />
     <QtUic Include="RendererWidget.ui" />
     <QtUic Include="src\Editor\EditorWidgetComponent\LayerCreateWidget.ui" />
   </ItemGroup>
@@ -247,7 +251,9 @@
     <ClInclude Include="src\Editor\util\PaintingUtil.h" />
     <ClInclude Include="src\Editor\util\SvgFileLoader.h" />
     <QtMoc Include="src\FluentMenu.h" />
+    <ClInclude Include="src\FlowLayout.h" />
     <ClInclude Include="src\FluentMenuButton.h" />
+    <QtMoc Include="src\Library\LibraryWidget.h" />
     <ClInclude Include="src\Renderer\IblUtils.h" />
     <ClInclude Include="src\Renderer\Painting\BaseStyle.h" />
     <ClInclude Include="src\Renderer\Painting\CubicBezierSignedDistance.h" />

ArchitectureColoredPainting/ArchitectureColoredPainting.vcxproj.filters

@@ -100,6 +100,12 @@
     <QtUic Include="EditorLayerInfoWidget.ui">
       <Filter>Form Files</Filter>
     </QtUic>
+    <QtUic Include="LibraryWidget.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="PaintingItem.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="src\Editor\EditorWidgetItem.cpp">
@@ -291,6 +297,12 @@
     <ClCompile Include="src\Editor\Properties\MaterialReplaceDialog.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="src\Library\LibraryWidget.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="src\FlowLayout.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <QtMoc Include="src\Renderer\RendererGLWidget.h">
@@ -365,6 +377,9 @@
     <QtMoc Include="src\Editor\Properties\MaterialReplaceDialog.h">
       <Filter>Header Files</Filter>
     </QtMoc>
+    <QtMoc Include="src\Library\LibraryWidget.h">
+      <Filter>Header Files</Filter>
+    </QtMoc>
   </ItemGroup>
   <ItemGroup>
     <None Include="..\data.json" />
@@ -588,6 +603,9 @@
     <ClInclude Include="src\Editor\util\JsonMerger.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="src\FlowLayout.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <QtRcc Include="res\MainWindow.qrc">

ArchitectureColoredPainting/LibraryWidget.ui

@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>LibraryWidgetClass</class>
+ <widget class="QWidget" name="LibraryWidgetClass">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>1124</width>
+    <height>695</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="0,1">
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QComboBox" name="classComboBox">
+       <property name="minimumSize">
+        <size>
+         <width>0</width>
+         <height>30</height>
+        </size>
+       </property>
+       <property name="maximumSize">
+        <size>
+         <width>16777215</width>
+         <height>30</height>
+        </size>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLabel" name="amountLabel">
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QScrollArea" name="scrollArea">
+     <property name="frameShape">
+      <enum>QFrame::NoFrame</enum>
+     </property>
+     <property name="frameShadow">
+      <enum>QFrame::Plain</enum>
+     </property>
+     <property name="lineWidth">
+      <number>0</number>
+     </property>
+     <property name="widgetResizable">
+      <bool>true</bool>
+     </property>
+     <widget class="QWidget" name="flowWidget">
+      <property name="geometry">
+       <rect>
+        <x>0</x>
+        <y>0</y>
+        <width>1106</width>
+        <height>639</height>
+       </rect>
+      </property>
+     </widget>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

ArchitectureColoredPainting/MainWindow.ui

@@ -43,6 +43,7 @@
      <item row="0" column="0">
       <widget class="QStackedWidget" name="stackedWidget">
        <widget class="EditorWidget" name="editorWidget"/>
+       <widget class="Library::LibraryWidget" name="libraryWidget"/>
        <widget class="Renderer::RendererWidget" name="rendererWidget"/>
       </widget>
      </item>
@@ -62,6 +63,12 @@
    <extends>QWidget</extends>
    <header>Editor/EditorWidget.h</header>
   </customwidget>
+  <customwidget>
+   <class>Library::LibraryWidget</class>
+   <extends>QWidget</extends>
+   <header>Library/LibraryWidget.h</header>
+   <container>1</container>
+  </customwidget>
  </customwidgets>
  <resources/>
  <connections/>

ArchitectureColoredPainting/PaintingItem.ui

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Form</class>
+ <widget class="QWidget" name="Form">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+
+   <layout class="QVBoxLayout" name="verticalLayout"/>
+
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

ArchitectureColoredPainting/src/Editor/DataManager/ProjectDataManager.h

@@ -13,6 +13,7 @@ struct ProjectData
 	EditorWidgetItem* item;
 };
 
+/// 没用
 class ProjectDataManager
 {
 private:

ArchitectureColoredPainting/src/Editor/EditorWidget.cpp

@@ -122,7 +122,9 @@ void EditorWidget::initFileMenu()
 		});
 	connect(actionMerge, &QAction::triggered, this, [this] {
 		auto files = QFileDialog::getOpenFileNames(this, QStringLiteral("打开需要合并的项目文件"), "", QStringLiteral("JSON文件(*.json)"));
+		if (files.empty()) return;
 		auto target = QFileDialog::getSaveFileName(this, QStringLiteral("保存至"), "", QStringLiteral("JSON文件(*.json)"));
+		if (target.isEmpty()) return;
 		auto load = [&](QString path) {
 			QFile file(path);
 			file.open(QFile::ReadOnly);

ArchitectureColoredPainting/src/Editor/EditorWidgetItem.cpp

@@ -274,11 +274,6 @@ void EditorWidgetItem::handleCanvasMetallicChange(const float& metallic)
 	previewWindow->canvasMetallic = metallic;
 }
 
-void EditorWidgetItem::handleMaterialReplace(const Renderer::Material& origin, const Renderer::Material& target)
-{
-
-}
-
 QSize EditorWidgetItem::getCanvasReferSize() const
 {
 	return previewWindow->referSize;

ArchitectureColoredPainting/src/Editor/EditorWidgetItem.h

@@ -50,7 +50,6 @@ class EditorWidgetItem : public QWidget
     void handleCanvasSizeChange(const QSize& size);
     void handleCanvasRoughnessChange(const float& roughness);
 	void handleCanvasMetallicChange(const float& metallic);
-    void handleMaterialReplace(const Renderer::Material& origin, const Renderer::Material& target);
     QSize getCanvasReferSize() const;
     float getCanvasRoughness() const;
 	float getCanvasMetallic() const;

ArchitectureColoredPainting/src/FlowLayout.cpp

@@ -0,0 +1,153 @@
+#include "FlowLayout.h"
+#include <QtWidgets>
+
+FlowLayout::FlowLayout(QWidget* parent, int margin, int hSpacing, int vSpacing)
+    : QLayout(parent), m_hSpace(hSpacing), m_vSpace(vSpacing)
+{
+    setContentsMargins(margin, margin, margin, margin);
+}
+
+FlowLayout::FlowLayout(int margin, int hSpacing, int vSpacing)
+    : m_hSpace(hSpacing), m_vSpace(vSpacing)
+{
+    setContentsMargins(margin, margin, margin, margin);
+}
+
+FlowLayout::~FlowLayout()
+{
+    QLayoutItem* item;
+    while ((item = takeAt(0)))
+        delete item;
+}
+
+void FlowLayout::addItem(QLayoutItem* item)
+{
+    itemList.append(item);
+}
+
+int FlowLayout::horizontalSpacing() const
+{
+    if (m_hSpace >= 0) {
+        return m_hSpace;
+    }
+    else {
+        return smartSpacing(QStyle::PM_LayoutHorizontalSpacing);
+    }
+}
+
+int FlowLayout::verticalSpacing() const
+{
+    if (m_vSpace >= 0) {
+        return m_vSpace;
+    }
+    else {
+        return smartSpacing(QStyle::PM_LayoutVerticalSpacing);
+    }
+}
+
+int FlowLayout::count() const
+{
+    return itemList.size();
+}
+
+QLayoutItem* FlowLayout::itemAt(int index) const
+{
+    return itemList.value(index);
+}
+
+QLayoutItem* FlowLayout::takeAt(int index)
+{
+    if (index >= 0 && index < itemList.size())
+        return itemList.takeAt(index);
+    return nullptr;
+}
+
+Qt::Orientations FlowLayout::expandingDirections() const
+{
+    return { };
+}
+
+bool FlowLayout::hasHeightForWidth() const
+{
+    return true;
+}
+
+int FlowLayout::heightForWidth(int width) const
+{
+    int height = doLayout(QRect(0, 0, width, 0), true);
+    return height;
+}
+
+void FlowLayout::setGeometry(const QRect& rect)
+{
+    QLayout::setGeometry(rect);
+    doLayout(rect, false);
+}
+
+QSize FlowLayout::sizeHint() const
+{
+    return minimumSize();
+}
+
+QSize FlowLayout::minimumSize() const
+{
+    QSize size;
+    for (const QLayoutItem* item : qAsConst(itemList))
+        size = size.expandedTo(item->minimumSize());
+
+    const QMargins margins = contentsMargins();
+    size += QSize(margins.left() + margins.right(), margins.top() + margins.bottom());
+    return size;
+}
+
+int FlowLayout::doLayout(const QRect& rect, bool testOnly) const
+{
+    int left, top, right, bottom;
+    getContentsMargins(&left, &top, &right, &bottom);
+    QRect effectiveRect = rect.adjusted(+left, +top, -right, -bottom);
+    int x = effectiveRect.x();
+    int y = effectiveRect.y();
+    int lineHeight = 0;
+
+    for (QLayoutItem* item : qAsConst(itemList)) {
+        const QWidget* wid = item->widget();
+        int spaceX = horizontalSpacing();
+        if (spaceX == -1)
+            spaceX = wid->style()->layoutSpacing(
+                QSizePolicy::PushButton, QSizePolicy::PushButton, Qt::Horizontal);
+        int spaceY = verticalSpacing();
+        if (spaceY == -1)
+            spaceY = wid->style()->layoutSpacing(
+                QSizePolicy::PushButton, QSizePolicy::PushButton, Qt::Vertical);
+
+        int nextX = x + item->sizeHint().width() + spaceX;
+        if (nextX - spaceX > effectiveRect.right() && lineHeight > 0) {
+            x = effectiveRect.x();
+            y = y + lineHeight + spaceY;
+            nextX = x + item->sizeHint().width() + spaceX;
+            lineHeight = 0;
+        }
+
+        if (!testOnly)
+            item->setGeometry(QRect(QPoint(x, y), item->sizeHint()));
+
+        x = nextX;
+        lineHeight = qMax(lineHeight, item->sizeHint().height());
+    }
+    return y + lineHeight - rect.y() + bottom;
+}
+
+int FlowLayout::smartSpacing(QStyle::PixelMetric pm) const
+{
+    QObject* parent = this->parent();
+    if (!parent) {
+        return -1;
+    }
+    else if (parent->isWidgetType()) {
+        QWidget* pw = static_cast<QWidget*>(parent);
+        return pw->style()->pixelMetric(pm, nullptr, pw);
+    }
+    else {
+        return static_cast<QLayout*>(parent)->spacing();
+    }
+}

ArchitectureColoredPainting/src/FlowLayout.h

@@ -0,0 +1,34 @@
+#pragma once
+#include <QLayout>
+#include <QRect>
+#include <QStyle>
+
+class FlowLayout : public QLayout
+{
+public:
+    explicit FlowLayout(QWidget* parent, int margin = -1, int hSpacing = -1, int vSpacing = -1);
+    explicit FlowLayout(int margin = -1, int hSpacing = -1, int vSpacing = -1);
+    ~FlowLayout();
+
+    void addItem(QLayoutItem* item) override;
+    int horizontalSpacing() const;
+    int verticalSpacing() const;
+    Qt::Orientations expandingDirections() const override;
+    bool hasHeightForWidth() const override;
+    int heightForWidth(int) const override;
+    int count() const override;
+    QLayoutItem* itemAt(int index) const override;
+    QSize minimumSize() const override;
+    void setGeometry(const QRect& rect) override;
+    QSize sizeHint() const override;
+    QLayoutItem* takeAt(int index) override;
+
+private:
+    int doLayout(const QRect& rect, bool testOnly) const;
+    int smartSpacing(QStyle::PixelMetric pm) const;
+
+    QList<QLayoutItem*> itemList;
+    int m_hSpace;
+    int m_vSpace;
+};
+

ArchitectureColoredPainting/src/Library/LibraryWidget.cpp

@@ -0,0 +1,105 @@
+#include "LibraryWidget.h"
+#include "../FlowLayout.h"
+#include "../Renderer/Preview/PaintingRenderer.h"
+#include <QDebug>
+#include <QJsonDocument>
+#include <QJsonObject>
+#include "../util/PaintingUtil.h"
+
+using namespace Library;
+
+LibraryWidget::LibraryWidget(QWidget* parent)
+	: QWidget(parent)
+{
+	ui.setupUi(this);
+	FlowLayout* layout = new FlowLayout(ui.flowWidget);
+	ui.flowWidget->setLayout(layout);
+	for (const auto& dir : libraryDir.entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot))
+		ui.classComboBox->addItem(dir.fileName());
+
+	connect(ui.classComboBox, &QComboBox::textActivated, this, &LibraryWidget::onClassChanged);
+
+	Renderer::PaintingRenderer::instance();
+
+	onClassChanged(ui.classComboBox->currentText());
+}
+
+QSize LibraryWidget::getPaintingAdjustedSize(const QString& path)
+{
+	QFile file(path);
+	file.open(QFile::ReadOnly);
+	QByteArray setting = file.readAll().trimmed();
+	QJsonParseError jError;
+	QJsonDocument jsonDoc(QJsonDocument::fromJson(setting, &jError));
+	auto width = jsonDoc.object().value("width").toDouble();
+	auto height = jsonDoc.object().value("height").toDouble();
+	return QSize(round(width / height * kItemHeight), kItemHeight);
+}
+
+void Library::LibraryWidget::loadIcons(std::stop_token stop)
+{
+	while (!loadingQueue.empty() && !stop.stop_requested())
+	{
+		auto item = loadingQueue.front();
+		loadingQueue.pop();
+		QString path = static_cast<PaintingItem*>(item->userData(Qt::UserRole))->path;
+		auto painting = PaintingUtil::transfromToPainting(path);
+		auto image = Renderer::PaintingRenderer::instance().renderPainting(painting, item->iconSize() * devicePixelRatioF());
+		QTimer::singleShot(0, this, [item, image, stop] {
+			if (!stop.stop_requested())
+				item->setIcon(QIcon(QPixmap::fromImage(image)));
+			});
+	}
+}
+
+void Library::LibraryWidget::onClassChanged(const QString& name)
+{
+	if (loadingThread)
+	{
+		loadingThread->request_stop();
+		loadingThread->join();
+	}
+
+	QDir classDir(libraryDir.filePath(name));
+	auto layout = static_cast<FlowLayout*>(ui.flowWidget->layout());
+
+	while (auto child = layout->takeAt(0))
+	{
+		if (child->widget())
+		{
+			child->widget()->setParent(nullptr);
+			delete child->widget();
+		}
+		delete child;
+	}
+
+	loadingQueue = std::queue<QToolButton*>();
+
+	QPixmap pixmap(QSize(1, 1));
+	pixmap.fill(Qt::transparent);
+
+	for (const auto& dir : classDir.entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot))
+		for (const auto& file : QDir(dir.filePath()).entryInfoList(QDir::Files))
+		{
+			if (file.suffix() != "json") continue;
+
+			auto size = getPaintingAdjustedSize(file.filePath());
+			auto item = new QToolButton(ui.flowWidget);
+			item->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
+			item->setIcon(QIcon(pixmap));
+			item->setIconSize(size);
+			item->setText(file.baseName());
+			auto data = new PaintingItem(file.filePath());
+			item->setUserData(Qt::UserRole, data);
+
+			connect(item, &QToolButton::clicked, this, [this] {
+				emit openPaintingFile(static_cast<PaintingItem*>(qobject_cast<QToolButton*>(sender())->userData(Qt::UserRole))->path);
+				});
+
+			loadingQueue.push(item);
+			layout->addWidget(item);
+		}
+	ui.amountLabel->setText(QStringLiteral("¹² %1 Ïî").arg(layout->count()));
+
+	loadingThread = std::jthread([this](std::stop_token stop) {loadIcons(stop); });
+}

ArchitectureColoredPainting/src/Library/LibraryWidget.h

@@ -0,0 +1,45 @@
+#pragma once
+#include <QWidget>
+#include <QDir>
+#include <queue>
+#include <QMetaType>
+#include <QToolButton>
+#include <QtConcurrent>
+#include "ui_LibraryWidget.h"
+
+
+namespace Library
+{
+
+	class PaintingItem : public QObjectUserData
+	{
+	public:
+		QString path;
+		PaintingItem(const QString& path = "") : path(path) {}
+		PaintingItem(const PaintingItem& p) : path(p.path) {}
+	};
+	Q_DECLARE_METATYPE(PaintingItem);
+
+	class LibraryWidget : public QWidget
+	{
+		Q_OBJECT
+	public:
+		const QDir libraryDir = QDir("Paintings");
+		constexpr static int kItemHeight = 240;
+
+		LibraryWidget(QWidget* parent = nullptr);
+
+	signals:
+		void openPaintingFile(QString path);
+
+	private:
+		Ui::LibraryWidgetClass ui;
+		std::queue<QToolButton*> loadingQueue;
+		std::mutex mutex;
+		std::optional<std::jthread> loadingThread;
+
+		void onClassChanged(const QString& name);
+		QSize getPaintingAdjustedSize(const QString& path);
+		void loadIcons(std::stop_token stop);
+	};
+}

ArchitectureColoredPainting/src/MainWindow.cpp

@@ -1,6 +1,7 @@
 #include "MainWindow.h"
 #include "Renderer/RendererGLWidget.h"
 #include "Editor/EditorWidget.h"
+#include "Library/LibraryWidget.h"
 #include "qslider.h"
 #include <QPushButton>
 #include <QScreen>
@@ -25,6 +26,11 @@ CentralWidget::CentralWidget(QWidget* parent) : QWidget(parent)
 		ui.stackedWidget->setCurrentWidget(ui.editorWidget);
 		ui.editorWidget->handleOpenPaintingFile(path);
 		});
+	QObject::connect(ui.libraryWidget, &Library::LibraryWidget::openPaintingFile, [&, navigationBarWidget](QString path) {
+		navigationBarWidget->tabs->setCurrentTab(0);
+		ui.stackedWidget->setCurrentWidget(ui.editorWidget);
+		ui.editorWidget->handleOpenPaintingFile(path);
+		});
 }
 
 CentralWidget::~CentralWidget()

ArchitectureColoredPainting/src/NavigationBarWidget.cpp

@@ -8,6 +8,7 @@ NavigationBarWidget::NavigationBarWidget(QWidget *parent)
     , tabs(new QtMaterialTabs)
 {
     tabs->addTab(QStringLiteral("纹理编辑"));
+    tabs->addTab(QStringLiteral("匼第踱"));
     tabs->addTab(QStringLiteral("场景渲染"));
     tabs->setHaloVisible(false);
     tabs->setBackgroundColor(Qt::transparent);

ArchitectureColoredPainting/src/Renderer/Preview/PaintingRenderer.cpp

@@ -8,18 +8,24 @@ Renderer::PaintingRenderer& Renderer::PaintingRenderer::instance()
 }
 
 bool Renderer::PaintingRenderer::exportPainting(const QString& path, Painting& painting, const QSize& size, float supersampling)
+{
+	auto image = renderPainting(painting, size, supersampling);
+	image.scaled(size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation).save(path, "PNG", 100);
+	return true;
+}
+
+QImage Renderer::PaintingRenderer::renderPainting(Painting& painting, const QSize& size, float supersampling)
 {
 	std::unique_lock<std::mutex> lock(drawMutex);
 	draw.wait(lock, [&] {return drawFinished; });
 	drawFinished = false;
-	this->path = path;
 	this->painting = &painting;
 	this->size = size;
 	this->supersampling = supersampling;
 	needDraw = true;
 	draw.notify_all();
 	draw.wait(lock, [&] {return drawFinished; });
-	return true;
+	return result;
 }
 
 Renderer::PaintingRenderer::PaintingRenderer()
@@ -67,8 +73,7 @@ Renderer::PaintingRenderer::PaintingRenderer()
 				gl->glBindImageTexture(1, 0, 0, GL_FALSE, 0, GL_READ_ONLY, GL_RGBA8);
 				gl->glDispatchCompute((GLuint)ceil(renderSize.width() / 8.), (GLuint)ceil(renderSize.height() / 8.), 1);
 				shader->release();
-				auto image = fbo.toImage(true);
-				image.scaled(size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation).save(path, "PNG", 100);
+				result = fbo.toImage(true);
 				gl->glDeleteBuffers(7, painting->buffers.data());
 				drawFinished = true;
 			}

ArchitectureColoredPainting/src/Renderer/Preview/PaintingRenderer.h

@@ -12,6 +12,8 @@ namespace Renderer
 	public:
 		static PaintingRenderer& instance();
 		bool exportPainting(const QString& path, Painting& painting, const QSize& size, float supersampling = 2.f);
+		QImage renderPainting(Painting& painting, const QSize& size, float supersampling = 2.f);
+
 	protected:
 		std::unique_ptr<QOpenGLShaderProgram> shader;
 		std::jthread thread;
@@ -23,10 +25,10 @@ namespace Renderer
 		std::condition_variable draw;
 		std::mutex drawMutex;
 		Painting* painting;
-		QString path;
 		QSize size;
 		float supersampling;
-		std::pair<QImage, QPointF> result;
+
+		QImage result;
 
 		PaintingRenderer();
 	};