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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "qdesigner_widget_p.h"
#include "formwindowbase_p.h"
#include "grid_p.h"
#include <QtDesigner/abstractformwindow.h>
#include <QtGui/qpainter.h>
#include <QtWidgets/qstyle.h>
#include <QtWidgets/qstyleoption.h>
#include <QtGui/qevent.h>
QT_BEGIN_NAMESPACE
/* QDesignerDialog / QDesignerWidget are used to paint a grid on QDialog and QWidget main containers
* and container extension pages.
* The paint routines work as follows:
* We need to clean the background here (to make the parent grid disappear in case we are a container page
* and to make palette background settings take effect),
* which would normally break style sheets with background settings.
* So, we manually make the style paint after cleaning. On top comes the grid
* In addition, this code works around
* the QStyleSheetStyle setting Qt::WA_StyledBackground to false for subclasses of QWidget.
*/
QDesignerDialog::QDesignerDialog(QDesignerFormWindowInterface *fw, QWidget *parent) :
QDialog(parent),
m_formWindow(qobject_cast<qdesigner_internal::FormWindowBase*>(fw))
{
}
void QDesignerDialog::paintEvent(QPaintEvent *e)
{
QPainter p(this);
QStyleOption opt;
opt.initFrom(this);
p.fillRect(e->rect(), palette().brush(backgroundRole()));
style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
if (m_formWindow && m_formWindow->gridVisible())
m_formWindow->designerGrid().paint(p, this, e);
}
QDesignerWidget::QDesignerWidget(QDesignerFormWindowInterface* formWindow, QWidget *parent) :
QWidget(parent),
m_formWindow(qobject_cast<qdesigner_internal::FormWindowBase*>(formWindow))
{
}
QDesignerWidget::~QDesignerWidget() = default;
QDesignerFormWindowInterface* QDesignerWidget::formWindow() const
{
return m_formWindow;
}
void QDesignerWidget::paintEvent(QPaintEvent *e)
{
QPainter p(this);
QStyleOption opt;
opt.initFrom(this);
p.fillRect(e->rect(), palette().brush(backgroundRole()));
style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
if (m_formWindow && m_formWindow->gridVisible())
m_formWindow->designerGrid().paint(p, this, e);
}
QT_END_NAMESPACE
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