Add stageScale property to ProjectScene

Author: adazem009

ScratchCPPGui/projectscene.cpp

@@ -37,6 +37,21 @@ void ProjectScene::setEngine(IEngine *newEngine)
     emit engineChanged();
 }
 
+double ProjectScene::stageScale() const
+{
+    return m_stageScale;
+}
+
+void ProjectScene::setStageScale(double newStageScale)
+{
+    if (qFuzzyCompare(m_stageScale, newStageScale))
+        return;
+
+    m_stageScale = newStageScale;
+    Q_ASSERT(m_stageScale > 0);
+    emit stageScaleChanged();
+}
+
 void ProjectScene::handleMouseMove(qreal x, qreal y)
 {
     if (m_engine) {

ScratchCPPGui/projectscene.h

@@ -19,13 +19,17 @@ class ProjectScene : public QQuickItem
         Q_OBJECT
         QML_ELEMENT
         Q_PROPERTY(libscratchcpp::IEngine *engine READ engine WRITE setEngine NOTIFY engineChanged)
+        Q_PROPERTY(double stageScale READ stageScale WRITE setStageScale NOTIFY stageScaleChanged)
 
     public:
         ProjectScene(QQuickItem *parent = nullptr);
 
         libscratchcpp::IEngine *engine() const;
         void setEngine(libscratchcpp::IEngine *newEngine);
 
+        double stageScale() const;
+        void setStageScale(double newStageScale);
+
         Q_INVOKABLE void handleMouseMove(qreal x, qreal y);
         Q_INVOKABLE void handleMousePress();
         Q_INVOKABLE void handleMouseRelease();
@@ -35,11 +39,13 @@ class ProjectScene : public QQuickItem
 
     signals:
         void engineChanged();
+        void stageScaleChanged();
 
     private:
         void installKeyHandler(QQuickWindow *window);
 
         libscratchcpp::IEngine *m_engine = nullptr;
+        double m_stageScale = 1;
         KeyEventHandler *m_keyHandler = nullptr;
 };
 

test/projectscene/projectscene_test.cpp

@@ -8,7 +8,7 @@ using namespace scratchcppgui;
 
 using ::testing::Return;
 
-TEST(ProjectScene, Engine)
+TEST(ProjectSceneTest, Engine)
 {
     ProjectScene scene;
     ASSERT_EQ(scene.engine(), nullptr);
@@ -18,7 +18,16 @@ TEST(ProjectScene, Engine)
     ASSERT_EQ(scene.engine(), &engine);
 }
 
-TEST(ProjectScene, HandleMouseMove)
+TEST(ProjectSceneTest, StageScale)
+{
+    ProjectScene scene;
+    ASSERT_EQ(scene.stageScale(), 1);
+
+    scene.setStageScale(5.79);
+    ASSERT_EQ(scene.stageScale(), 5.79);
+}
+
+TEST(ProjectSceneTest, HandleMouseMove)
 {
     ProjectScene scene;
     EngineMock engine;
@@ -31,7 +40,7 @@ TEST(ProjectScene, HandleMouseMove)
     scene.handleMouseMove(46.9, -16.7);
 }
 
-TEST(ProjectScene, HandleMousePress)
+TEST(ProjectSceneTest, HandleMousePress)
 {
     ProjectScene scene;
     EngineMock engine;
@@ -44,7 +53,7 @@ TEST(ProjectScene, HandleMousePress)
     scene.handleMousePress();
 }
 
-TEST(ProjectScene, HandleMouseRelease)
+TEST(ProjectSceneTest, HandleMouseRelease)
 {
     ProjectScene scene;
     EngineMock engine;
@@ -57,7 +66,7 @@ TEST(ProjectScene, HandleMouseRelease)
     scene.handleMouseRelease();
 }
 
-TEST(ProjectScene, HandleKeyPressAndRelease)
+TEST(ProjectSceneTest, HandleKeyPressAndRelease)
 {
     static const std::unordered_map<Qt::Key, KeyEvent::Type> SPECIAL_KEY_MAP = {
         { Qt::Key_Space, KeyEvent::Type::Space }, { Qt::Key_Left, KeyEvent::Type::Left },    { Qt::Key_Up, KeyEvent::Type::Up },      { Qt::Key_Right, KeyEvent::Type::Right },