完善函数

ArchitectureColoredPainting/src/Editor/EditorWidget.cpp

@@ -4,17 +4,18 @@ EditorWidget::EditorWidget(QWidget *parent) : QWidget(parent)
 {
     ui.setupUi(this);
     previewWindow = ui.Preview;
+    qDebug() << "123";
     // test
     QFile settingFile;
     settingFile.setFileName("../data.json");
     settingFile.open(QFile::ReadOnly);
     QByteArray setting = settingFile.readAll().trimmed();
     QJsonParseError jError;
-    QJsonDocument jsonDoc(QJsonDocument::fromJson(setting,&jError));
+    QJsonDocument jsonDoc(QJsonDocument::fromJson(setting, &jError));
     qDebug() << jsonDoc.object().value("height").toDouble();
     qDebug() << jError.errorString();
     // end test
-    QJsonObject source=jsonDoc.object();
+    QJsonObject source = jsonDoc.object();
     elementManager = new ElementManager(source);
     layerManager = new LayerManager(source, elementManager);
     previewWindow->initialize(layerManager);

ArchitectureColoredPainting/src/Editor/LayerWrapper.cpp

@@ -18,8 +18,9 @@ void FolderLayerWrapper::removeChild(LayerWrapper *child)
         }
 }
 
-QPainterPath LayerWrapper::getCache() const
+QPainterPath LayerWrapper::getCache()
 {
+    this->refresh();
     return cache;
 }
 // TODO: undone
@@ -49,11 +50,28 @@ FolderLayerWrapper::FolderLayerWrapper(QJsonObject json, ElementManager *element
                 shared_ptr<LayerWrapper>(new LeafLayerWrapper(childJson.toObject(), elementManager, this)));
     }
 }
-#include <iostream>
+
 LeafLayerWrapper::LeafLayerWrapper(QJsonObject json, ElementManager *elementManager, LayerWrapper *parent)
     : LayerWrapper(json, parent)
 {
-    qDebug() << json.value("name").toString();
     int elementIndex = json.value("element").toInt();
     wrappedElement = elementManager->getElementById(elementIndex);
 }
+
+void LayerWrapper::refresh()
+{
+}
+
+void FolderLayerWrapper::refresh()
+{
+    cache.clear();
+    for (auto &child : children)
+        cache += child.get()->getCache();
+}
+
+void LeafLayerWrapper::refresh()
+{
+    cache.clear();
+    if (wrappedElement != nullptr)
+        cache += wrappedElement->getPaintObject();
+}

ArchitectureColoredPainting/src/Editor/LayerWrapper.h

@@ -26,7 +26,8 @@ class LayerWrapper
     QPainterPath cache;
 
   public:
-    QPainterPath getCache() const; // invoke by manager, then invoke parent's applyStyles
+    virtual void refresh();
+    QPainterPath getCache(); // invoke by manager, then invoke parent's applyStyles
     LayerWrapper(QJsonObject json, LayerWrapper *parent);
     LayerWrapper() = default;
 };
@@ -37,6 +38,7 @@ class FolderLayerWrapper : public LayerWrapper
     vector<shared_ptr<LayerWrapper>> children;
 
   public:
+    void refresh() override;
     FolderLayerWrapper() = default;
     FolderLayerWrapper(QJsonObject json, ElementManager *elementManager, LayerWrapper *parent);
     void addChild(LayerWrapper *child);
@@ -49,6 +51,7 @@ class LeafLayerWrapper : public LayerWrapper
     GraphicElement *wrappedElement;
 
   public:
+    void refresh() override;
     LeafLayerWrapper() = default;
     LeafLayerWrapper(QJsonObject json, ElementManager *elementManager, LayerWrapper *parent);
 };