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 // 30 // W A R N I N G 31 // ------------- 32 // 33 // This file is not part of the Qt API. It exists for the convenience 34 // of Qt Designer. This header 35 // file may change from version to version without notice, or even be removed. 36 // 37 // We mean it. 38 // 39 40 #ifndef LAYOUTINFO_H 41 #define LAYOUTINFO_H 42 43 #include "shared_global_p.h" 44 45 QT_BEGIN_NAMESPACE 46 47 class QWidget; 48 class QLayout; 49 class QLayoutItem; 50 class QDesignerFormEditorInterface; 51 class QFormLayout; 52 class QRect; 53 class QString; 54 55 namespace qdesigner_internal { 56 57 class QDESIGNER_SHARED_EXPORT LayoutInfo 58 { 59 public: 60 enum Type 61 { 62 NoLayout, 63 HSplitter, 64 VSplitter, 65 HBox, 66 VBox, 67 Grid, 68 Form, 69 UnknownLayout // QDockWindow inside QMainWindow is inside QMainWindowLayout - it doesn't mean there is no layout 70 }; 71 72 static void deleteLayout(const QDesignerFormEditorInterface *core, QWidget *widget); 73 74 // Examines the immediate layout of the widget. 75 static Type layoutType(const QDesignerFormEditorInterface *core, const QWidget *w); 76 // Examines the managed layout of the widget 77 static Type managedLayoutType(const QDesignerFormEditorInterface *core, const QWidget *w, QLayout **layout = nullptr); 78 static Type layoutType(const QDesignerFormEditorInterface *core, const QLayout *layout); 79 static Type layoutType(const QString &typeName); 80 static QString layoutName(Type t); 81 82 static QWidget *layoutParent(const QDesignerFormEditorInterface *core, QLayout *layout); 83 84 static Type laidoutWidgetType(const QDesignerFormEditorInterface *core, QWidget *widget, bool *isManaged = nullptr, QLayout **layout = nullptr); isWidgetLaidout(const QDesignerFormEditorInterface * core,QWidget * widget)85 static bool inline isWidgetLaidout(const QDesignerFormEditorInterface *core, QWidget *widget) { return laidoutWidgetType(core, widget) != NoLayout; } 86 87 static QLayout *managedLayout(const QDesignerFormEditorInterface *core, const QWidget *widget); 88 static QLayout *managedLayout(const QDesignerFormEditorInterface *core, QLayout *layout); 89 static QLayout *internalLayout(const QWidget *widget); 90 91 // Is it a a dummy grid placeholder created by Designer? 92 static bool isEmptyItem(QLayoutItem *item); 93 }; 94 95 QDESIGNER_SHARED_EXPORT void getFormLayoutItemPosition(const QFormLayout *formLayout, int index, int *rowPtr, int *columnPtr = nullptr, int *rowspanPtr = nullptr, int *colspanPtr = nullptr); 96 QDESIGNER_SHARED_EXPORT void formLayoutAddWidget(QFormLayout *formLayout, QWidget *w, const QRect &r, bool insert); 97 } // namespace qdesigner_internal 98 99 QT_END_NAMESPACE 100 101 #endif // LAYOUTINFO_H 102