QWindowCreationContext Class Reference

Active Context for creating windows. More...

#include <qwindowswindow.h>

Collaboration diagram for QWindowCreationContext:

Public Member Functions
	QWindowCreationContext (const QWindow *w, const QScreen *s, const QRect &geometryIn, const QRect &geometry, const QMargins &customMargins, DWORD style, DWORD exStyle)
void	applyToMinMaxInfo (MINMAXINFO *mmi) const

Public Attributes
const QWindow *	window
const QScreen *	screen
QRect	requestedGeometryIn
QRect	requestedGeometry
QPoint	obtainedPos
QSize	obtainedSize
QMargins	margins
QMargins	customMargins
int	frameX = CW_USEDEFAULT
int	frameY = CW_USEDEFAULT
int	frameWidth = CW_USEDEFAULT
int	frameHeight = CW_USEDEFAULT
int	menuHeight = 0

Detailed Description

Active Context for creating windows.

There is a phase in window creation (WindowCreationData::create()) in which events are sent before the system API CreateWindowEx() returns the handle. These cannot be handled by the platform window as the association of the unknown handle value to the window does not exist yet and as not to trigger recursive handle creation, etc.

In that phase, an instance of QWindowCreationContext is set on QWindowsContext.

QWindowCreationContext stores the information to answer the initial WM_GETMINMAXINFO and obtains the corrected size/position.

See also

WindowCreationData, QWindowsContext

Definition at line 52 of file qwindowswindow.h.

Constructor & Destructor Documentation

QWindowCreationContext()

QWindowCreationContext::QWindowCreationContext ( const QWindow * w, const QScreen * s, const QRect & geometryIn, const QRect & geometry, const QMargins & customMargins, DWORD style, DWORD exStyle )

explicit

Definition at line 1416 of file qwindowswindow.cpp.

References QMargins::bottom(), customMargins, frameHeight, Qt::FramelessWindowHint, frameWidth, frameX, frameY, QRect::height(), QRect::isValid(), QMargins::left(), margins, QWindowsMenuBar::menuBarOf(), menuHeight, QWindowsGeometryHint::positionIncludesFrame(), qCDebug, qt_window_private(), QMargins::right(), QMargins::top(), QRect::width(), QRect::x(), and QRect::y().

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Member Function Documentation

applyToMinMaxInfo()

void QWindowCreationContext::applyToMinMaxInfo

(

MINMAXINFO *

mmi

)

const

Definition at line 1462 of file qwindowswindow.cpp.

References QWindowsGeometryHint::applyToMinMaxInfo(), customMargins, margins, screen, and window.

Referenced by QWindowsContext::windowsProc().

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Member Data Documentation

customMargins

QMargins QWindowCreationContext::customMargins

Definition at line 69 of file qwindowswindow.h.

Referenced by QWindowCreationContext(), applyToMinMaxInfo(), and QWindowsContext::windowsProc().

frameHeight

int QWindowCreationContext::frameHeight = CW_USEDEFAULT

Definition at line 73 of file qwindowswindow.h.

Referenced by QWindowCreationContext().

frameWidth

int QWindowCreationContext::frameWidth = CW_USEDEFAULT

Definition at line 72 of file qwindowswindow.h.

Referenced by QWindowCreationContext().

frameX

int QWindowCreationContext::frameX = CW_USEDEFAULT

Definition at line 70 of file qwindowswindow.h.

Referenced by QWindowCreationContext().

frameY

int QWindowCreationContext::frameY = CW_USEDEFAULT

Definition at line 71 of file qwindowswindow.h.

Referenced by QWindowCreationContext().

margins

QMargins QWindowCreationContext::margins

Definition at line 68 of file qwindowswindow.h.

Referenced by QWindowCreationContext(), applyToMinMaxInfo(), and QWindowsContext::windowsProc().

menuHeight

int QWindowCreationContext::menuHeight = 0

Definition at line 74 of file qwindowswindow.h.

Referenced by QWindowCreationContext().

obtainedPos

QPoint QWindowCreationContext::obtainedPos

Definition at line 66 of file qwindowswindow.h.

Referenced by QWindowsWindow::initialize(), and QWindowsContext::windowsProc().

obtainedSize

QSize QWindowCreationContext::obtainedSize

Definition at line 67 of file qwindowswindow.h.

Referenced by QWindowsWindow::initialize(), and QWindowsContext::windowsProc().

requestedGeometry

QRect QWindowCreationContext::requestedGeometry

Definition at line 65 of file qwindowswindow.h.

requestedGeometryIn

QRect QWindowCreationContext::requestedGeometryIn

Definition at line 64 of file qwindowswindow.h.

Referenced by QWindowsWindow::initialize().

screen

const QScreen* QWindowCreationContext::screen

Definition at line 63 of file qwindowswindow.h.

Referenced by applyToMinMaxInfo().

window

const QWindow* QWindowCreationContext::window

Definition at line 60 of file qwindowswindow.h.

Referenced by applyToMinMaxInfo(), and QWindowsContext::windowsProc().

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

• qtbase/src/plugins/platforms/windows/qwindowswindow.h (dc5a29b3246d19bd620acc9fdaea929bf856d8dc)
• qtbase/src/plugins/platforms/windows/qwindowswindow.cpp (2c5f5bf2e8843d8c88c3ece9bd93c567fd74d3ae)