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Cocoa: Implement support for child windows.

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On OS X, child windows (in the Qt sense) are not
windows. Add special case to window creation that
links the content views instead of creating a
NSWindow. Add a similar special case to
setGeometry().

Refactor window (re)creation into recreateWindow(),
which is called from both the QCocoaWindow
constructor and setParent().

m_nsWindow may now be null, add null-pointer checks
to all usages. Change winId() to return the
m_contentView pointer instead of m_nsWindow.

QGLWidget now works, but probably has sibling window
stacking issues which we won't be able to fix without
moving to client-side compositing.

Change-Id: I2e74cf27734dba7076c150e0d8341f0a62d3de2d
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
This commit is contained in:
Morten Johan Sorvig 2012-03-13 10:37:53 +01:00 committed by Qt by Nokia
parent 5939cd33af
commit 6d9f04422a
2 changed files with 69 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/plugins/platforms/cocoa/qcocoawindow.h
View File

@ -92,6 +92,7 @@ public:
~QCocoaWindow();
void setGeometry(const QRect &rect);
void setCocoaGeometry(const QRect &rect);
void setVisible(bool visible);
Qt::WindowFlags setWindowFlags(Qt::WindowFlags flags);
void setWindowTitle(const QString &title);
@ -117,6 +118,7 @@ public:
protected:
// NSWindow handling. The QCocoaWindow/QNSView can either be displayed
// in an existing NSWindow or in one created by Qt.
void recreateWindow(const QPlatformWindow *parentWindow);
NSWindow *createNSWindow();
void setNSWindow(NSWindow *window);
void clearNSWindow(NSWindow *window);

88
src/plugins/platforms/cocoa/qcocoawindow.mm
View File

@ -90,6 +90,7 @@
QCocoaWindow::QCocoaWindow(QWindow *tlw)
: QPlatformWindow(tlw)
, m_nsWindow(0)
, m_glContext(0)
, m_inConstructor(true)
{
@ -98,8 +99,7 @@ QCocoaWindow::QCocoaWindow(QWindow *tlw)
m_contentView = [[QNSView alloc] initWithQWindow:tlw platformWindow:this];
setGeometry(tlw->geometry());
m_nsWindow = createNSWindow();
setNSWindow(m_nsWindow);
recreateWindow(parent());
m_inConstructor = false;
}
@ -119,10 +119,18 @@ void QCocoaWindow::setGeometry(const QRect &rect)
qDebug() << "QCocoaWindow::setGeometry" << this << rect;
#endif
QPlatformWindow::setGeometry(rect);
setCocoaGeometry(rect);
}
NSRect bounds = qt_mac_flipRect(rect, window());
[m_nsWindow setContentSize : bounds.size];
[m_nsWindow setFrameOrigin : bounds.origin];
void QCocoaWindow::setCocoaGeometry(const QRect &rect)
{
if (m_nsWindow) {
NSRect bounds = qt_mac_flipRect(rect, window());
[m_nsWindow setContentSize : bounds.size];
[m_nsWindow setFrameOrigin : bounds.origin];
} else {
[m_contentView setFrame : NSMakeRect(rect.x(), rect.y(), rect.width(), rect.height())];
}
}
void QCocoaWindow::setVisible(bool visible)
@ -151,13 +159,16 @@ void QCocoaWindow::setVisible(bool visible)
// Make sure the QWindow has a frame ready before we show the NSWindow.
QWindowSystemInterface::handleSynchronousExposeEvent(window(), QRect(QPoint(), geometry().size()));
if ([m_nsWindow canBecomeKeyWindow])
[m_nsWindow makeKeyAndOrderFront:nil];
else
[m_nsWindow orderFront: nil];
if (m_nsWindow) {
if ([m_nsWindow canBecomeKeyWindow])
[m_nsWindow makeKeyAndOrderFront:nil];
else
[m_nsWindow orderFront: nil];
}
} else {
// qDebug() << "close" << this;
[m_nsWindow orderOut:m_nsWindow];
if (m_nsWindow)
[m_nsWindow orderOut:m_nsWindow];
}
}
@ -170,6 +181,8 @@ Qt::WindowFlags QCocoaWindow::setWindowFlags(Qt::WindowFlags flags)
void QCocoaWindow::setWindowTitle(const QString &title)
{
QCocoaAutoReleasePool pool;
if (!m_nsWindow)
return;
CFStringRef windowTitle = QCFString::toCFStringRef(title);
[m_nsWindow setTitle: const_cast<NSString *>(reinterpret_cast<const NSString *>(windowTitle))];
@ -180,17 +193,21 @@ void QCocoaWindow::raise()
{
//qDebug() << "raise" << this;
// ### handle spaces (see Qt 4 raise_sys in qwidget_mac.mm)
[m_nsWindow orderFront: m_nsWindow];
if (m_nsWindow)
[m_nsWindow orderFront: m_nsWindow];
}
void QCocoaWindow::lower()
{
[m_nsWindow orderBack: m_nsWindow];
if (m_nsWindow)
[m_nsWindow orderBack: m_nsWindow];
}
void QCocoaWindow::propagateSizeHints()
{
QCocoaAutoReleasePool pool;
if (!m_nsWindow)
return;
[m_nsWindow setMinSize : qt_mac_toNSSize(window()->minimumSize())];
[m_nsWindow setMaxSize : qt_mac_toNSSize(window()->maximumSize())];
@ -213,6 +230,9 @@ void QCocoaWindow::propagateSizeHints()
bool QCocoaWindow::setKeyboardGrabEnabled(bool grab)
{
if (!m_nsWindow)
return false;
if (grab && ![m_nsWindow isKeyWindow])
[m_nsWindow makeKeyWindow];
else if (!grab && [m_nsWindow isKeyWindow])
@ -222,6 +242,9 @@ bool QCocoaWindow::setKeyboardGrabEnabled(bool grab)
bool QCocoaWindow::setMouseGrabEnabled(bool grab)
{
if (!m_nsWindow)
return false;
if (grab && ![m_nsWindow isKeyWindow])
[m_nsWindow makeKeyWindow];
else if (!grab && [m_nsWindow isKeyWindow])
@ -231,23 +254,19 @@ bool QCocoaWindow::setMouseGrabEnabled(bool grab)
WId QCocoaWindow::winId() const
{
return WId(m_nsWindow);
return WId(m_contentView);
}
void QCocoaWindow::setParent(const QPlatformWindow *window)
void QCocoaWindow::setParent(const QPlatformWindow *parentWindow)
{
// recreate the window for compatibility
clearNSWindow(m_nsWindow);
[m_nsWindow close];
[m_nsWindow release];
m_nsWindow = createNSWindow();
setNSWindow(m_nsWindow);
recreateWindow(parentWindow);
setCocoaGeometry(geometry());
}
NSView *QCocoaWindow::contentView() const
{
return [m_nsWindow contentView];
return m_contentView;
}
void QCocoaWindow::windowWillMove()
@ -266,6 +285,9 @@ void QCocoaWindow::windowDidMove()
void QCocoaWindow::windowDidResize()
{
if (!m_nsWindow)
return;
NSRect rect = [[m_nsWindow contentView]frame];
// Call setFrameSize which will trigger a frameDidChangeNotification on QNSView.
[[m_nsWindow contentView] setFrameSize:rect.size];
@ -286,6 +308,27 @@ QCocoaGLContext *QCocoaWindow::currentContext() const
return m_glContext;
}
void QCocoaWindow::recreateWindow(const QPlatformWindow *parentWindow)
{
// Remove current window (if any)
if (m_nsWindow) {
clearNSWindow(m_nsWindow);
[m_nsWindow close];
[m_nsWindow release];
m_nsWindow = 0;
}
if (!parentWindow) {
// Create a new NSWindow if this is a top-level window.
m_nsWindow = createNSWindow();
setNSWindow(m_nsWindow);
} else {
// Child windows have no NSWindow, link the NSViews instead.
const QCocoaWindow *parentCococaWindow = static_cast<const QCocoaWindow *>(parentWindow);
[parentCococaWindow->m_contentView addSubview : m_contentView];
}
}
NSWindow * QCocoaWindow::createNSWindow()
{
QCocoaAutoReleasePool pool;
@ -378,6 +421,9 @@ void QCocoaWindow::clearNSWindow(NSWindow *window)
// Returns the current global screen geometry for the nswindow associated with this window.
QRect QCocoaWindow::windowGeometry() const
{
if (!m_nsWindow)
return geometry();
NSRect rect = [m_nsWindow frame];
QPlatformScreen *onScreen = QPlatformScreen::platformScreenForWindow(window());
int flippedY = onScreen->geometry().height() - rect.origin.y - rect.size.height; // account for nswindow inverted y.