QMacScrollOptimization Class Reference

#include <qt_cocoa_helpers_mac_p.h>

Static Public Functions
static bool	delayScroll (QWidgetPrivate *target, int dx, int dy, const QRect &scrollRect)
static void	initDelayedScroll ()
static void	performDelayedScroll ()

Static Private Attributes
static int	_dx = 0
static int	_dy = 0
static bool	_inWheelEvent = false
static QRect	_scrollRect = QRect(0, 0, -1, -1)
static QWidgetPrivate *	_target = 0

Detailed Description

Definition at line 249 of file qt_cocoa_helpers_mac_p.h.

Functions

delayScroll()

static bool QMacScrollOptimization::delayScroll ( QWidgetPrivate *  target, int  dx, int  dy, const QRect &  scrollRect  )

inlinestatic

Definition at line 269 of file qt_cocoa_helpers_mac_p.h.

Referenced by QWidgetPrivate::scroll_sys().

    {
        if (!_inWheelEvent)
            return false;
        if (_target && _target != target)
            return false;
        if (_scrollRect.width() != -1 && _scrollRect != scrollRect)
            return false;

        _target = target;
        _dx += dx;
        _dy += dy;
        _scrollRect = scrollRect;
        return true;
    }

initDelayedScroll()

static void QMacScrollOptimization::initDelayedScroll ( )

inlinestatic

Definition at line 264 of file qt_cocoa_helpers_mac_p.h.

    {
        _inWheelEvent = true;
    }

performDelayedScroll()

static void QMacScrollOptimization::performDelayedScroll ( )

inlinestatic

Definition at line 285 of file qt_cocoa_helpers_mac_p.h.

    {
        if (!_inWheelEvent)
            return;
        _inWheelEvent = false;
        if (!_target)
            return;

        _target->scroll_sys(_dx, _dy, _scrollRect);

        _target = 0;
        _dx = 0;
        _dy = 0;
        _scrollRect = QRect(0, 0, -1, -1);
    }

Properties

_dx

int QMacScrollOptimization::_dx = 0

staticprivate

Definition at line 259 of file qt_cocoa_helpers_mac_p.h.

Referenced by qt_mac_post_retranslateAppMenu().

_dy

int QMacScrollOptimization::_dy = 0

staticprivate

Definition at line 260 of file qt_cocoa_helpers_mac_p.h.

Referenced by qt_mac_post_retranslateAppMenu().

_inWheelEvent

bool QMacScrollOptimization::_inWheelEvent = false

staticprivate

Definition at line 258 of file qt_cocoa_helpers_mac_p.h.

Referenced by qt_mac_post_retranslateAppMenu().

_scrollRect

QRect QMacScrollOptimization::_scrollRect = QRect(0, 0, -1, -1)

staticprivate

Definition at line 261 of file qt_cocoa_helpers_mac_p.h.

Referenced by qt_mac_post_retranslateAppMenu().

_target

QWidgetPrivate * QMacScrollOptimization::_target = 0

staticprivate

Definition at line 257 of file qt_cocoa_helpers_mac_p.h.

Referenced by qt_mac_post_retranslateAppMenu().

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The documentation for this class was generated from the following files:

• /src/gui/kernel/qt_cocoa_helpers_mac_p.h
• /src/gui/kernel/qt_cocoa_helpers_mac.mm