1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the Qt Designer of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:GPL-EXCEPT$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT 21 ** included in the packaging of this file. Please review the following 22 ** information to ensure the GNU General Public License requirements will 23 ** be met: https://www.gnu.org/licenses/gpl-3.0.html. 24 ** 25 ** $QT_END_LICENSE$ 26 ** 27 ****************************************************************************/ 28 29 #ifndef LAYOUTDECORATION_H 30 #define LAYOUTDECORATION_H 31 32 #include <QtDesigner/extension.h> 33 34 #include <QtCore/qobject.h> 35 #include <QtCore/qpair.h> 36 37 QT_BEGIN_NAMESPACE 38 39 class QPoint; 40 class QLayoutItem; 41 class QWidget; 42 class QRect; 43 class QLayout; 44 45 class QDesignerLayoutDecorationExtension 46 { 47 public: 48 enum InsertMode 49 { 50 InsertWidgetMode, 51 InsertRowMode, 52 InsertColumnMode 53 }; 54 ~QDesignerLayoutDecorationExtension()55 virtual ~QDesignerLayoutDecorationExtension() {} 56 57 virtual QList<QWidget*> widgets(QLayout *layout) const = 0; 58 59 virtual QRect itemInfo(int index) const = 0; 60 virtual int indexOf(QWidget *widget) const = 0; 61 virtual int indexOf(QLayoutItem *item) const = 0; 62 63 virtual InsertMode currentInsertMode() const = 0; 64 virtual int currentIndex() const = 0; 65 virtual QPair<int, int> currentCell() const = 0; 66 virtual void insertWidget(QWidget *widget, const QPair<int, int> &cell) = 0; 67 virtual void removeWidget(QWidget *widget) = 0; 68 69 virtual void insertRow(int row) = 0; 70 virtual void insertColumn(int column) = 0; 71 virtual void simplify() = 0; 72 73 virtual int findItemAt(const QPoint &pos) const = 0; 74 virtual int findItemAt(int row, int column) const = 0; // atm only for grid. 75 76 virtual void adjustIndicator(const QPoint &pos, int index) = 0; 77 }; 78 Q_DECLARE_EXTENSION_INTERFACE(QDesignerLayoutDecorationExtension, "org.qt-project.Qt.Designer.LayoutDecoration") 79 80 QT_END_NAMESPACE 81 82 #endif // LAYOUTDECORATION_H 83