1 /****************************************************************************

     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.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    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

    20 ** packaging of this file.  Please review the following information to

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

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    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

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

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    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

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    36 **

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    38 ** $QT_END_LICENSE$

    39 **

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

    41 

    42 //

    43 //  W A R N I N G

    44 //  -------------

    45 //

    46 // This file is not part of the Qt API.  It exists for the convenience

    47 // of Qt Designer.  This header

    48 // file may change from version to version without notice, or even be removed.

    49 //

    50 // We mean it.

    51 //

    52 

    53 #ifndef LAYOUTINFO_H

    54 #define LAYOUTINFO_H

    55 

    56 #include "shared_global_p.h"

    57 

    58 QT_BEGIN_NAMESPACE

    59 

    60 class QWidget;

    61 class QLayout;

    62 class QLayoutItem;

    63 class QDesignerFormEditorInterface;

    64 class QFormLayout;

    65 class QRect;

    66 class QString;

    67 

    68 namespace qdesigner_internal {

    69 

    70 class QDESIGNER_SHARED_EXPORT LayoutInfo

    71 {

    72 public:

    73     enum Type

    74     {

    75         NoLayout,

    76         HSplitter,

    77         VSplitter,

    78         HBox,

    79         VBox,

    80         Grid,

    81         Form,

    82         UnknownLayout // QDockWindow inside QMainWindow is inside QMainWindowLayout - it doesn't mean there is no layout

    83     };

    84 

    85     static void deleteLayout(const QDesignerFormEditorInterface *core, QWidget *widget);

    86 

    87     // Examines the immediate layout of the widget (will fail for Q3Group Box).

    88     static Type layoutType(const QDesignerFormEditorInterface *core, const QWidget *w);

    89     // Examines the managed layout of the widget

    90     static Type managedLayoutType(const QDesignerFormEditorInterface *core, const QWidget *w, QLayout **layout = 0);

    91     static Type layoutType(const QDesignerFormEditorInterface *core, const QLayout *layout);

    92     static Type layoutType(const QString &typeName);

    93     static QString layoutName(Type t);

    94 

    95     static QWidget *layoutParent(const QDesignerFormEditorInterface *core, QLayout *layout);

    96 

    97     static Type laidoutWidgetType(const QDesignerFormEditorInterface *core, QWidget *widget, bool *isManaged = 0, QLayout **layout = 0);

    98     static bool inline isWidgetLaidout(const QDesignerFormEditorInterface *core, QWidget *widget) { return laidoutWidgetType(core, widget) != NoLayout; }

    99 

   100     static QLayout *managedLayout(const QDesignerFormEditorInterface *core, const QWidget *widget);

   101     static QLayout *managedLayout(const QDesignerFormEditorInterface *core, QLayout *layout);

   102     static QLayout *internalLayout(const QWidget *widget);

   103 

   104     // Is it a a dummy grid placeholder created by Designer?

   105     static bool isEmptyItem(QLayoutItem *item);

   106 };

   107 

   108 QDESIGNER_SHARED_EXPORT void getFormLayoutItemPosition(const QFormLayout *formLayout, int index, int *rowPtr, int *columnPtr = 0, int *rowspanPtr = 0, int *colspanPtr = 0);

   109 QDESIGNER_SHARED_EXPORT void formLayoutAddWidget(QFormLayout *formLayout, QWidget *w, const QRect &r, bool insert);

   110 } // namespace qdesigner_internal

   111 

   112 QT_END_NAMESPACE

   113 

   114 #endif // LAYOUTINFO_H