macOS: Update qt_on_cocoa manual test

- Add view to contentView, to allow checking parent view interaction
- Render via requestUpdate instead of manual timer
- Add two windows to check subview interaction

Change-Id: Ib028e62f585d45e42c0429e69ea6f45c8a90fe54
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>

tests/manual/cocoa/qt_on_cocoa/main.mm

@@ -33,6 +33,17 @@
 
 #include <AppKit/AppKit.h>
 
+
+@interface ContentView : NSView
+@end
+
+@implementation ContentView
+- (void)drawRect:(NSRect)dirtyRect {
+    [[NSColor whiteColor] setFill];
+    NSRectFill(dirtyRect);
+}
+@end
+
 @interface AppDelegate : NSObject <NSApplicationDelegate> {
     QGuiApplication *m_app;
     QWindow *m_window;
@@ -65,9 +76,19 @@
     [window setTitle:title];
     [window setBackgroundColor:[NSColor blueColor]];
 
-    // Create the QWindow, use its NSView as the content view
-    m_window = new RasterWindow();
-    [window setContentView:reinterpret_cast<NSView *>(m_window->winId())];
+    window.contentView = [[[ContentView alloc] initWithFrame:frame] autorelease];
+
+    // Create the QWindow, add its NSView to the content view
+    m_window = new RasterWindow;
+    m_window->setObjectName("RasterWindow");
+    m_window->setGeometry(QRect(0, 0, 300, 300));
+
+    QWindow *childWindow = new RasterWindow;
+    childWindow->setObjectName("RasterWindowChild");
+    childWindow->setParent(m_window);
+    childWindow->setGeometry(50, 50, 100, 100);
+
+    [window.contentView addSubview:reinterpret_cast<NSView *>(m_window->winId())];
 
     // Show the NSWindow
     [window makeKeyAndOrderFront:NSApp];

tests/manual/cocoa/qt_on_cocoa/rasterwindow.cpp

@@ -52,17 +52,6 @@ RasterWindow::RasterWindow(QRasterWindow *parent)
 
 void RasterWindow::initialize()
 {
-    if (parent())
-        setGeometry(QRect(160, 120, 320, 240));
-    else {
-        setGeometry(QRect(10, 10, 640, 480));
-
-        setSizeIncrement(QSize(10, 10));
-        setBaseSize(QSize(640, 480));
-        setMinimumSize(QSize(240, 160));
-        setMaximumSize(QSize(800, 600));
-    }
-
     create();
     m_backingStore = new QBackingStore(this);
 
@@ -70,7 +59,6 @@ void RasterWindow::initialize()
     m_image.fill(colorTable[m_backgroundColorIndex % (sizeof(colorTable) / sizeof(colorTable[0]))].rgba());
 
     m_lastPos = QPoint(-1, -1);
-    m_renderTimer = 0;
 }
 
 void RasterWindow::mousePressEvent(QMouseEvent *event)
@@ -104,7 +92,7 @@ void RasterWindow::mouseReleaseEvent(QMouseEvent *event)
 
 void RasterWindow::exposeEvent(QExposeEvent *)
 {
-    scheduleRender();
+    render();
 }
 
 void RasterWindow::resizeEvent(QResizeEvent *)
@@ -146,15 +134,15 @@ void RasterWindow::keyPressEvent(QKeyEvent *event)
 
 void RasterWindow::scheduleRender()
 {
-    if (!m_renderTimer)
-        m_renderTimer = startTimer(1);
+    requestUpdate();
 }
 
-void RasterWindow::timerEvent(QTimerEvent *)
+bool RasterWindow::event(QEvent *e)
 {
-    render();
-    killTimer(m_renderTimer);
-    m_renderTimer = 0;
+    if (e->type() == QEvent::UpdateRequest)
+        render();
+
+    return QWindow::event(e);
 }
 
 void RasterWindow::render()

tests/manual/cocoa/qt_on_cocoa/rasterwindow.h

@@ -44,7 +44,7 @@ protected:
     void exposeEvent(QExposeEvent *);
     void resizeEvent(QResizeEvent *);
 
-    void timerEvent(QTimerEvent *);
+    bool event(QEvent *);
 
 private:
     void render();
@@ -56,5 +56,4 @@ private:
     QPoint m_lastPos;
     int m_backgroundColorIndex;
     QBackingStore *m_backingStore;
-    int m_renderTimer;
 };