qwidget_qpa.cpp File Reference

#include "QtGui/qwidget.h"
#include "QtGui/qevent.h"
#include "QtGui/qapplication.h"
#include "QtGui/private/qbackingstore_p.h"
#include "QtGui/private/qwidget_p.h"
#include "QtGui/private/qgraphicssystem_p.h"
#include "QtGui/private/qapplication_p.h"
#include "QtGui/qdesktopwidget.h"
#include "QtGui/qplatformwindow_qpa.h"
#include "QtGui/qplatformglcontext_qpa.h"
#include <QtGui/QPlatformCursor>

Go to the source code of this file.

Functions
static Qt::WindowStates	effectiveState (Qt::WindowStates state)
void	q_createNativeChildrenAndSetParent (QPlatformWindow *parentWindow, const QWidget *parentWidget)
void	qt_qpa_set_cursor (QWidget *w, bool force)

Variables
static QWidget *	keyboardGrb = 0
QWidget *	qt_mouseGrb = 0
QWidget *	qt_pressGrab = 0

Function Documentation

effectiveState()

static Qt::WindowStates effectiveState ( Qt::WindowStates  state )

static

Definition at line 468 of file qwidget_qpa.cpp.

 {
     if (state & Qt::WindowMinimized)
         return Qt::WindowMinimized;
     else if (state & Qt::WindowFullScreen)
         return Qt::WindowFullScreen;
     else if (state & Qt::WindowMaximized)
         return Qt::WindowMaximized;
     return Qt::WindowNoState;
 }

q_createNativeChildrenAndSetParent()

void q_createNativeChildrenAndSetParent	(	QPlatformWindow *	parentWindow,
		const QWidget *	parentWidget
	)

Definition at line 57 of file qwidget_qpa.cpp.

{
    QObjectList children = parentWidget->children();
    for (int i = 0; i < children.size(); i++) {
        if (children.at(i)->isWidgetType()) {
            const QWidget *childWidget = qobject_cast<const QWidget *>(children.at(i));
            if (childWidget) { // should not be necessary
                if (childWidget->testAttribute(Qt::WA_NativeWindow)) {
                    if (!childWidget->platformWindow())
                        childWidget->winId();
                }
                if (childWidget->platformWindow()) {
                    childWidget->platformWindow()->setParent(parentWindow);
                } else {
                    q_createNativeChildrenAndSetParent(parentWindow,childWidget);
                }
            }
        }
    }

}

qt_qpa_set_cursor()

void qt_qpa_set_cursor	(	QWidget *	w,
		bool	force
	)

Definition at line 872 of file qwidget_qpa.cpp.

Referenced by QApplicationPrivate::dispatchEnterLeave(), and q_createNativeChildrenAndSetParent().

{
    static QCursor arrowCursor(Qt::ArrowCursor);
    static QPointer<QWidget> lastUnderMouse = 0;

    QCursor * override = QApplication::overrideCursor();

    if (override && w != 0)
        return;

    QWidget *cursorWidget;
    QCursor cursorCursor;

    do {
        if (w == 0) {
            if (override) {
                cursorCursor = *override;
                cursorWidget = QApplication::topLevelAt(QCursor::pos());
                break;
            }
            w = QApplication::widgetAt(QCursor::pos());
            if (w == 0) // clear the override cursor while over empty space
                w = QApplication::desktop();
        } else if (force) {
            lastUnderMouse = w;
        } else if (w->testAttribute(Qt::WA_WState_Created) && lastUnderMouse
                   && lastUnderMouse->effectiveWinId() == w->effectiveWinId()) {
            w = lastUnderMouse;
        }
        if (w == QApplication::desktop() && !override) {
            cursorCursor = arrowCursor;
            cursorWidget = w;
            break;
        }

        QWidget * curWin = QApplication::activeWindow();
        if (!curWin && w && w->internalWinId())
            return;
        QWidget* cW = w && !w->internalWinId() ? w : curWin;

        if (!cW || cW->window() != w->window() ||
            !cW->isVisible() || !cW->underMouse() || override)
            return;

        cursorCursor = w->cursor();
        cursorWidget = w;
    } while (0);
    foreach (QWeakPointer<QPlatformCursor> cursor, QPlatformCursorPrivate::getInstances())
        if (cursor)
            cursor.data()->changeCursor(&cursorCursor, cursorWidget);
}

Variable Documentation

keyboardGrb

QWidget* keyboardGrb = 0

static

Definition at line 312 of file qwidget_qpa.cpp.

qt_mouseGrb

QWidget* qt_mouseGrb = 0

Definition at line 311 of file qwidget_qpa.cpp.

Referenced by isServerProcess().

qt_pressGrab

QWidget* qt_pressGrab = 0

Definition at line 310 of file qwidget_qpa.cpp.

Referenced by isServerProcess().