Add method for reloading viewer

.gitignore

@@ -3,6 +3,7 @@
 
 # Exclude generated file
 cgo.go
+moc*.h
 
 # Exclude sample dir
 sample/

viewer/viewer.cpp

@@ -1,122 +1,140 @@
-#include "viewer.h"
 #include <QQuickView>
 #include <QString>
 #include <QUrl>
 #include <QWindow>
 #include <QIcon>
 #include <QQmlEngine>
+#include "viewer.h"
+
+class QamelView : public QQuickView {
+    Q_OBJECT
+
+public:
+    QamelView(QWindow *parent = 0) : QQuickView(parent) {}
+    QamelView(const QUrl &source, QWindow *parent = nullptr) : QQuickView(source, parent) {}
+
+public slots:
+    void reload() {
+        engine()->clearComponentCache();
+        setSource(source());
+    }
+};
 
 void* Viewer_NewViewer() {
-    return new QQuickView();
+    return new QamelView();
 }
 
 void* Viewer_NewViewerWithSource(char* source) {
     QUrl url = QUrl(QString(source));
-    return new QQuickView(url);
+    return new QamelView(url);
 }
 
 void Viewer_SetSource(void* ptr, char* url) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->setSource(QUrl(QString(url)));
 }
 
 void Viewer_SetResizeMode(void* ptr, int resizeMode) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->setResizeMode(QQuickView::ResizeMode(resizeMode));
 }
 
 void Viewer_SetFlags(void* ptr, int flags) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->setFlags(Qt::WindowFlags(flags));
 }
 
 void Viewer_SetHeight(void* ptr, int height) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->setHeight(height);
 }
 
 void Viewer_SetWidth(void* ptr, int width) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->setWidth(width);
 }
 
 void Viewer_SetMaximumHeight(void* ptr, int height) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->setMaximumHeight(height);
 }
 
 void Viewer_SetMaximumWidth(void* ptr, int width) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->setMaximumWidth(width);
 }
 
 void Viewer_SetMinimumHeight(void* ptr, int height) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->setMinimumHeight(height);
 }
 
 void Viewer_SetMinimumWidth(void* ptr, int width) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->setMinimumWidth(width);
 }
 
 void Viewer_SetOpacity(void* ptr, double opacity) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->setOpacity(opacity);
 }
 
 void Viewer_SetTitle(void* ptr, char* title) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->setTitle(QString(title));
 }
 
 void Viewer_SetVisible(void* ptr, bool visible) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->setVisible(visible);
 }
 
 void Viewer_SetPosition(void* ptr, int x, int y) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->setPosition(x, y);
 }
 
 void Viewer_SetIcon(void* ptr, char* fileName) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     QIcon icon = QIcon(QString(fileName));
     view->setIcon(icon);
 }
 
 void Viewer_Show(void* ptr) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->show();
 }
 
 void Viewer_ShowMaximized(void* ptr) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->showMaximized();
 }
 
 void Viewer_ShowMinimized(void* ptr) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->showMinimized();
 }
 
 void Viewer_ShowFullScreen(void* ptr) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->showFullScreen();
 }
 
 void Viewer_ShowNormal(void* ptr) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->showNormal();
 }
 
 void Viewer_SetWindowStates(void* ptr, int state) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->setWindowStates(Qt::WindowStates(state));
 }
 
 void Viewer_ClearComponentCache(void* ptr) {
-    QQuickView *view = static_cast<QQuickView*>(ptr);
+    QamelView *view = static_cast<QamelView*>(ptr);
     view->engine()->clearComponentCache();
 }
+
+void Viewer_Reload(void* ptr) {
+    QMetaObject::invokeMethod(static_cast<QamelView*>(ptr), "reload");
+}

viewer/viewer.go

@@ -255,3 +255,12 @@ func (view Viewer) ClearComponentCache() {
 
 	C.Viewer_ClearComponentCache(view.ptr)
 }
+
+// Reload reloads the active QML view.
+func (view Viewer) Reload() {
+	if view.ptr == nil {
+		return
+	}
+
+	C.Viewer_Reload(view.ptr)
+}

viewer/viewer.h

@@ -4,6 +4,10 @@
 #define QAMEL_VIEWER_H
 
 #ifdef __cplusplus
+
+// Class
+class QamelView;
+
 extern "C" {
 #endif
 
@@ -33,6 +37,7 @@ void Viewer_ShowFullScreen(void* ptr);
 void Viewer_ShowNormal(void* ptr);
 void Viewer_SetWindowStates(void* ptr, int state);
 void Viewer_ClearComponentCache(void* ptr);
+void Viewer_Reload(void* ptr);
 
 #ifdef __cplusplus
 }