diff options
Diffstat (limited to 'src/plugins/platforms/ios/qiosscreen.mm')
-rw-r--r-- | src/plugins/platforms/ios/qiosscreen.mm | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/plugins/platforms/ios/qiosscreen.mm b/src/plugins/platforms/ios/qiosscreen.mm index 7dd2ce7f6e..86bce0d70b 100644 --- a/src/plugins/platforms/ios/qiosscreen.mm +++ b/src/plugins/platforms/ios/qiosscreen.mm @@ -48,6 +48,7 @@ #include <QtCore/qoperatingsystemversion.h> #include <QtGui/private/qwindow_p.h> +#include <private/qcoregraphics_p.h> #include <sys/sysctl.h> @@ -176,6 +177,8 @@ static QIOSScreen* qtPlatformScreenFor(UIScreen *uiScreen) // ------------------------------------------------------------------------- +QT_BEGIN_NAMESPACE + /*! Returns the model identifier of the device. @@ -458,6 +461,38 @@ void QIOSScreen::setOrientationUpdateMask(Qt::ScreenOrientations mask) } } +QPixmap QIOSScreen::grabWindow(WId window, int x, int y, int width, int height) const +{ + if (window && ![reinterpret_cast<id>(window) isKindOfClass:[UIView class]]) + return QPixmap(); + + UIView *view = window ? reinterpret_cast<UIView *>(window) : m_uiWindow; + + if (width < 0) + width = qMax(view.bounds.size.width - x, CGFloat(0)); + if (height < 0) + height = qMax(view.bounds.size.height - y, CGFloat(0)); + + CGRect captureRect = [m_uiWindow convertRect:CGRectMake(x, y, width, height) fromView:view]; + captureRect = CGRectIntersection(captureRect, m_uiWindow.bounds); + + UIGraphicsBeginImageContextWithOptions(captureRect.size, NO, 0.0); + CGContextRef context = UIGraphicsGetCurrentContext(); + CGContextTranslateCTM(context, -captureRect.origin.x, -captureRect.origin.y); + + // Draws the complete view hierarchy of m_uiWindow into the given rect, which + // needs to be the same aspect ratio as the m_uiWindow's size. Since we've + // translated the graphics context, and are potentially drawing into a smaller + // context than the full window, the resulting image will be a subsection of the + // full screen. + [m_uiWindow drawViewHierarchyInRect:m_uiWindow.bounds afterScreenUpdates:NO]; + + UIImage *screenshot = UIGraphicsGetImageFromCurrentImageContext(); + UIGraphicsEndImageContext(); + + return QPixmap::fromImage(qt_mac_toQImage(screenshot.CGImage)); +} + UIScreen *QIOSScreen::uiScreen() const { return m_uiScreen; |