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     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the Qt Designer of the Qt Toolkit.

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     9 ** $QT_BEGIN_LICENSE:LGPL$

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    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

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    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

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    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

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    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #include "qdesigner_widget_p.h"

    43 #include "formwindowbase_p.h"

    44 #include "grid_p.h"

    45 

    46 #include <QtDesigner/QDesignerFormWindowInterface>

    47 #include <QtGui/QPainter>

    48 #include <QtGui/QStyle>

    49 #include <QtGui/QStyleOption>

    50 #include <QtGui/qevent.h>

    51 

    52 QT_BEGIN_NAMESPACE

    53 

    54 /* QDesignerDialog / QDesignerWidget are used to paint a grid on QDialog and QWidget main containers

    55  * and container extension pages.

    56  * The paint routines work as follows:

    57  * We need to clean the background here (to make the parent grid disappear in case we are a container page

    58  * and to make palette background settings take effect),

    59  * which would normally break style sheets with background settings.

    60  * So, we manually make the style paint after cleaning. On top comes the grid

    61  * In addition, this code works around

    62  * the QStyleSheetStyle setting Qt::WA_StyledBackground to false for subclasses of QWidget.

    63  */

    64 

    65 QDesignerDialog::QDesignerDialog(QDesignerFormWindowInterface *fw, QWidget *parent) :

    66     QDialog(parent),

    67     m_formWindow(qobject_cast<qdesigner_internal::FormWindowBase*>(fw))

    68 {

    69 }

    70 

    71 void QDesignerDialog::paintEvent(QPaintEvent *e)

    72 {

    73     QPainter p(this);

    74     QStyleOption opt;

    75     opt.initFrom(this);

    76     p.fillRect(e->rect(), palette().brush(backgroundRole()));

    77     style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);

    78     if (m_formWindow && m_formWindow->gridVisible())

    79         m_formWindow->designerGrid().paint(p, this, e);

    80 }

    81 

    82 QDesignerWidget::QDesignerWidget(QDesignerFormWindowInterface* formWindow, QWidget *parent)  :

    83     QWidget(parent),

    84     m_formWindow(qobject_cast<qdesigner_internal::FormWindowBase*>(formWindow))

    85 {

    86 }

    87 

    88 QDesignerWidget::~QDesignerWidget()

    89 {

    90 }

    91 

    92 QDesignerFormWindowInterface* QDesignerWidget::formWindow() const

    93 {

    94     return m_formWindow;

    95 }

    96 

    97 void QDesignerWidget::paintEvent(QPaintEvent *e)

    98 {

    99     QPainter p(this);

   100     QStyleOption opt;

   101     opt.initFrom(this);

   102     p.fillRect(e->rect(), palette().brush(backgroundRole()));

   103     style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);

   104     if (m_formWindow && m_formWindow->gridVisible())

   105         m_formWindow->designerGrid().paint(p, this, e);

   106 }

   107 

   108 QT_END_NAMESPACE