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2 | ** |
3 | ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). |
4 | ** Contact: http://www.qt-project.org/legal |
5 | ** |
6 | ** This file is part of the QtGui module of the Qt Toolkit. |
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8 | ** $QT_BEGIN_LICENSE:LGPL$ |
9 | ** Commercial License Usage |
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17 | ** GNU Lesser General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
19 | ** General Public License version 2.1 as published by the Free Software |
20 | ** Foundation and appearing in the file LICENSE.LGPL included in the |
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25 | ** In addition, as a special exception, Digia gives you certain additional |
26 | ** rights. These rights are described in the Digia Qt LGPL Exception |
27 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
28 | ** |
29 | ** GNU General Public License Usage |
30 | ** Alternatively, this file may be used under the terms of the GNU |
31 | ** General Public License version 3.0 as published by the Free Software |
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39 | ** |
40 | ****************************************************************************/ |
41 | |
42 | #ifndef QLAYOUT_H |
43 | #define QLAYOUT_H |
44 | |
45 | #include <QtCore/qobject.h> |
46 | #include <QtGui/qlayoutitem.h> |
47 | #include <QtGui/qsizepolicy.h> |
48 | #include <QtCore/qrect.h> |
49 | #include <QtCore/qmargins.h> |
50 | |
51 | #include <limits.h> |
52 | |
53 | QT_BEGIN_HEADER |
54 | |
55 | QT_BEGIN_NAMESPACE |
56 | |
57 | QT_MODULE(Gui) |
58 | |
59 | class QLayout; |
60 | class QSize; |
61 | |
62 | #ifdef QT3_SUPPORT |
63 | class Q_GUI_EXPORT QLayoutIterator |
64 | { |
65 | public: |
66 | inline QT3_SUPPORT_CONSTRUCTOR QLayoutIterator(QLayout *i) : layout(i), index(0) {} |
67 | inline QLayoutIterator(const QLayoutIterator &i) |
68 | : layout(i.layout), index(i.index) {} |
69 | inline QLayoutIterator &operator=(const QLayoutIterator &i) { |
70 | layout = i.layout; |
71 | index = i.index; |
72 | return *this; |
73 | } |
74 | inline QT3_SUPPORT QLayoutItem *operator++(); |
75 | inline QT3_SUPPORT QLayoutItem *current(); |
76 | inline QT3_SUPPORT QLayoutItem *takeCurrent(); |
77 | inline QT3_SUPPORT void deleteCurrent(); |
78 | |
79 | private: |
80 | // hack to avoid deprecated warning |
81 | friend class QLayout; |
82 | inline QLayoutIterator(QLayout *i, bool) : layout(i), index(0) {} |
83 | QLayout *layout; |
84 | int index; |
85 | }; |
86 | #endif |
87 | |
88 | class QLayoutPrivate; |
89 | |
90 | class Q_GUI_EXPORT QLayout : public QObject, public QLayoutItem |
91 | { |
92 | Q_OBJECT |
93 | Q_DECLARE_PRIVATE(QLayout) |
94 | |
95 | Q_ENUMS(SizeConstraint) |
96 | Q_PROPERTY(int margin READ margin WRITE setMargin) |
97 | Q_PROPERTY(int spacing READ spacing WRITE setSpacing) |
98 | Q_PROPERTY(SizeConstraint sizeConstraint READ sizeConstraint WRITE setSizeConstraint) |
99 | public: |
100 | enum SizeConstraint { |
101 | SetDefaultConstraint, |
102 | SetNoConstraint, |
103 | SetMinimumSize, |
104 | SetFixedSize, |
105 | SetMaximumSize, |
106 | SetMinAndMaxSize |
107 | #if defined(QT3_SUPPORT) && !defined(Q_MOC_RUN) |
108 | , Auto = SetDefaultConstraint, |
109 | FreeResize = SetNoConstraint, |
110 | Minimum = SetMinimumSize, |
111 | Fixed = SetFixedSize |
112 | #endif |
113 | }; |
114 | |
115 | QLayout(QWidget *parent); |
116 | QLayout(); |
117 | ~QLayout(); |
118 | |
119 | int margin() const; |
120 | int spacing() const; |
121 | |
122 | void setMargin(int); |
123 | void setSpacing(int); |
124 | |
125 | void setContentsMargins(int left, int top, int right, int bottom); |
126 | void setContentsMargins(const QMargins &margins); |
127 | void getContentsMargins(int *left, int *top, int *right, int *bottom) const; |
128 | QMargins contentsMargins() const; |
129 | QRect contentsRect() const; |
130 | |
131 | bool setAlignment(QWidget *w, Qt::Alignment alignment); |
132 | bool setAlignment(QLayout *l, Qt::Alignment alignment); |
133 | #ifdef Q_NO_USING_KEYWORD |
134 | inline void setAlignment(Qt::Alignment alignment) { QLayoutItem::setAlignment(alignment); } |
135 | #else |
136 | using QLayoutItem::setAlignment; |
137 | #endif |
138 | |
139 | void setSizeConstraint(SizeConstraint); |
140 | SizeConstraint sizeConstraint() const; |
141 | #ifdef QT3_SUPPORT |
142 | inline QT3_SUPPORT void setResizeMode(SizeConstraint s) {setSizeConstraint(s);} |
143 | inline QT3_SUPPORT SizeConstraint resizeMode() const {return sizeConstraint();} |
144 | #endif |
145 | void (QWidget *w); |
146 | QWidget *() const; |
147 | |
148 | QWidget *parentWidget() const; |
149 | |
150 | void invalidate(); |
151 | QRect geometry() const; |
152 | bool activate(); |
153 | void update(); |
154 | |
155 | void addWidget(QWidget *w); |
156 | virtual void addItem(QLayoutItem *) = 0; |
157 | |
158 | void removeWidget(QWidget *w); |
159 | void removeItem(QLayoutItem *); |
160 | |
161 | Qt::Orientations expandingDirections() const; |
162 | QSize minimumSize() const; |
163 | QSize maximumSize() const; |
164 | virtual void setGeometry(const QRect&); |
165 | virtual QLayoutItem *itemAt(int index) const = 0; |
166 | virtual QLayoutItem *takeAt(int index) = 0; |
167 | virtual int indexOf(QWidget *) const; |
168 | virtual int count() const = 0; |
169 | bool isEmpty() const; |
170 | |
171 | int totalHeightForWidth(int w) const; |
172 | QSize totalMinimumSize() const; |
173 | QSize totalMaximumSize() const; |
174 | QSize totalSizeHint() const; |
175 | QLayout *layout(); |
176 | |
177 | void setEnabled(bool); |
178 | bool isEnabled() const; |
179 | |
180 | #ifdef QT3_SUPPORT |
181 | QT3_SUPPORT void freeze(int w=0, int h=0); |
182 | QT3_SUPPORT bool isTopLevel() const; |
183 | #endif |
184 | |
185 | static QSize closestAcceptableSize(const QWidget *w, const QSize &s); |
186 | |
187 | protected: |
188 | void widgetEvent(QEvent *); |
189 | void childEvent(QChildEvent *e); |
190 | void addChildLayout(QLayout *l); |
191 | void addChildWidget(QWidget *w); |
192 | bool adoptLayout(QLayout *layout); |
193 | #ifdef QT3_SUPPORT |
194 | QT3_SUPPORT void deleteAllItems(); |
195 | #endif |
196 | |
197 | QRect alignmentRect(const QRect&) const; |
198 | protected: |
199 | QLayout(QLayoutPrivate &d, QLayout*, QWidget*); |
200 | |
201 | private: |
202 | Q_DISABLE_COPY(QLayout) |
203 | |
204 | static void activateRecursiveHelper(QLayoutItem *item); |
205 | |
206 | friend class QApplicationPrivate; |
207 | friend class QWidget; |
208 | |
209 | #ifdef QT3_SUPPORT |
210 | public: |
211 | QT3_SUPPORT_CONSTRUCTOR QLayout(QWidget *parent, int margin, int spacing = -1, |
212 | const char *name = 0); |
213 | QT3_SUPPORT_CONSTRUCTOR QLayout(QLayout *parentLayout, int spacing = -1, const char *name = 0); |
214 | QT3_SUPPORT_CONSTRUCTOR QLayout(int spacing, const char *name = 0); |
215 | inline QT3_SUPPORT QWidget *mainWidget() const { return parentWidget(); } |
216 | inline QT3_SUPPORT void remove(QWidget *w) { removeWidget(w); } |
217 | inline QT3_SUPPORT void add(QWidget *w) { addWidget(w); } |
218 | |
219 | QT3_SUPPORT void setAutoAdd(bool a); |
220 | QT3_SUPPORT bool autoAdd() const; |
221 | inline QT3_SUPPORT QLayoutIterator iterator() { return QLayoutIterator(this,true); } |
222 | |
223 | inline QT3_SUPPORT int defaultBorder() const { return spacing(); } |
224 | #endif |
225 | }; |
226 | |
227 | #ifdef QT3_SUPPORT |
228 | inline QLayoutItem *QLayoutIterator::operator++() { return layout->itemAt(++index); } |
229 | inline QLayoutItem *QLayoutIterator::current() { return layout->itemAt(index); } |
230 | inline QLayoutItem *QLayoutIterator::takeCurrent() { return layout->takeAt(index); } |
231 | inline void QLayoutIterator::deleteCurrent() { delete layout->takeAt(index); } |
232 | #endif |
233 | |
234 | //### support old includes |
235 | #if 1 //def QT3_SUPPORT |
236 | QT_BEGIN_INCLUDE_NAMESPACE |
237 | #include <QtGui/qboxlayout.h> |
238 | #include <QtGui/qgridlayout.h> |
239 | QT_END_INCLUDE_NAMESPACE |
240 | #endif |
241 | |
242 | QT_END_NAMESPACE |
243 | |
244 | QT_END_HEADER |
245 | |
246 | #endif // QLAYOUT_H |
247 | |