窗口缩放

ArchitectureColoredPainting/src/Editor/LayerManager.cpp

@@ -11,9 +11,9 @@ LayerWrapper *LayerManager::getRoot() const
 {
     return root;
 }
-void LayerManager::paint(QPainter *painter) const
+void LayerManager::paint(QPainter *painter, QSize size) const
 {
-    auto p = root->getCache().getPixmap();
+    auto p = root->getCache().resizedPixel(size);
 	painter->drawPixmap(0, 0, p);
 }
 bool LayerManager::singleSelectedCheck() const

ArchitectureColoredPainting/src/Editor/LayerManager.h

@@ -31,7 +31,7 @@ class LayerManager
     LayerWrapper *getRoot() const;
     LayerManager() = default;
 	LayerManager(QJsonObject source, ElementManager* elementManager);
-    void paint(QPainter *painter) const;
+    void paint(QPainter *painter, QSize size) const;
     bool rename(QString newName) const;
     bool combine() const;
     // bool seperate() const;

ArchitectureColoredPainting/src/Editor/PixelPath.cpp

@@ -74,3 +74,15 @@ PixelPath PixelPath::trans(QTransform& mat)const
 	result.boundingRect = mat.mapRect(boundingRect);
 	return result;
 }
+
+QPixmap PixelPath::resizedPixel(QSize size)const 
+{
+	QPixmap result(size);
+	result.fill(Qt::transparent);
+	QPainter painter(&result);
+	
+	painter.setRenderHint(QPainter::SmoothPixmapTransform);
+	painter.setRenderHint(QPainter::HighQualityAntialiasing);
+	painter.drawPixmap(0, 0, pixmap.scaled(size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
+	return result;
+}

ArchitectureColoredPainting/src/Editor/PixelPath.h

@@ -12,8 +12,8 @@ private:
 	QPixmap pixmap;
 	int w,h;
 public:
-	PixelPath(int w=2400, int h= 2400);
+	PixelPath(int w=1920, int h= 1080);
-	PixelPath(QPainterPath painterPath,int w = 2400, int h = 2400);
+	PixelPath(QPainterPath painterPath,int w = 1920, int h = 1080);
 	~PixelPath() = default;
 	QRectF getBoundingRect() const;
 	QPixmap getPixmap() const;
@@ -22,4 +22,5 @@ public:
 	void addImage(const QImage& image,const QPointF& pos);
 	void clear();
 	PixelPath trans(QTransform& mat)const;
+	QPixmap resizedPixel(QSize size)const;
 };

ArchitectureColoredPainting/src/Editor/PreviewWindow.cpp

@@ -14,7 +14,7 @@ PreviewWindow::PreviewWindow(QWidget *parent) : QOpenGLWidget(parent)
 
 void PreviewWindow::initialize(LayerManager *layerManager,QSize windowSize)
 {
-    this->setFixedSize(windowSize);
+	this->logicalSize = windowSize;
     this->layerManager = layerManager;
 }
 
@@ -47,7 +47,7 @@ void PreviewWindow::paintGL()
     painter->begin(this);
     painter->setRenderHint(QPainter::Antialiasing);
     painter->setRenderHint(QPainter::HighQualityAntialiasing);
-    layerManager->paint(painter);
+    layerManager->paint(painter,this->size());
     painter->end();
 }
 

ArchitectureColoredPainting/src/Editor/PreviewWindow.h

@@ -18,6 +18,7 @@ class PreviewWindow : public QOpenGLWidget, protected QOpenGLFunctions
     QPainter *painter;
     LayerManager *layerManager;
 	Renderer::ElementRenderer* renderer;
+    QSize logicalSize;
 
   public:
     PreviewWindow(QWidget *parent = nullptr);