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****************************************************************************/

#include "qdesigner_widget_p.h"

#include "formwindowbase_p.h"

#include "grid_p.h"

#include <QtDesigner/QDesignerFormWindowInterface>

#include <QtGui/QPainter>

#include <QtGui/QStyle>

#include <QtGui/QStyleOption>

#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()

{

}

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