graphicsview/qgraphicslayout_p.cpp

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1/**************************************************************************** -
2** -
3** Copyright (C) 2013 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. -
7** -
8** $QT_BEGIN_LICENSE:LGPL$ -
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 Digia. For licensing terms and -
14** conditions see http://qt.digia.com/licensing. For further information -
15** use the contact form at http://qt.digia.com/contact-us. -
16** -
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 -
21** packaging of this file. Please review the following information to -
22** ensure the GNU Lesser General Public License version 2.1 requirements -
23** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -
24** -
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 -
32** Foundation and appearing in the file LICENSE.GPL included in the -
33** packaging of this file. Please review the following information to -
34** ensure the GNU General Public License version 3.0 requirements will be -
35** met: http://www.gnu.org/copyleft/gpl.html. -
36** -
37** -
38** $QT_END_LICENSE$ -
39** -
40****************************************************************************/ -
41 -
42#include "qglobal.h" -
43 -
44#ifndef QT_NO_GRAPHICSVIEW -
45 -
46#include "qgraphicslayout_p.h" -
47#include "qgraphicslayout.h" -
48#include "qgraphicswidget.h" -
49#include "qapplication.h" -
50 -
51QT_BEGIN_NAMESPACE -
52 -
53/*! -
54 \internal -
55 -
56 \a mw is the new parent. all items in the layout will be a child of \a mw. -
57 */ -
58void QGraphicsLayoutPrivate::reparentChildItems(QGraphicsItem *newParent) -
59{ -
60 Q_Q(QGraphicsLayout);
executed (the execution status of this line is deduced): QGraphicsLayout * const q = q_func();
-
61 int n = q->count();
executed (the execution status of this line is deduced): int n = q->count();
-
62 //bool mwVisible = mw && mw->isVisible(); -
63 for (int i = 0; i < n; ++i) {
evaluated: i < n
TRUEFALSE
yes
Evaluation Count:150
yes
Evaluation Count:261
150-261
64 QGraphicsLayoutItem *layoutChild = q->itemAt(i);
executed (the execution status of this line is deduced): QGraphicsLayoutItem *layoutChild = q->itemAt(i);
-
65 if (!layoutChild) {
partially evaluated: !layoutChild
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:150
0-150
66 // Skip stretch items -
67 continue;
never executed: continue;
0
68 } -
69 if (layoutChild->isLayout()) {
evaluated: layoutChild->isLayout()
TRUEFALSE
yes
Evaluation Count:32
yes
Evaluation Count:118
32-118
70 QGraphicsLayout *l = static_cast<QGraphicsLayout*>(layoutChild);
executed (the execution status of this line is deduced): QGraphicsLayout *l = static_cast<QGraphicsLayout*>(layoutChild);
-
71 l->d_func()->reparentChildItems(newParent);
executed (the execution status of this line is deduced): l->d_func()->reparentChildItems(newParent);
-
72 } else if (QGraphicsItem *itemChild = layoutChild->graphicsItem()){
executed: }
Execution Count:32
partially evaluated: QGraphicsItem *itemChild = layoutChild->graphicsItem()
TRUEFALSE
yes
Evaluation Count:118
no
Evaluation Count:0
0-118
73 QGraphicsItem *childParent = itemChild->parentItem();
executed (the execution status of this line is deduced): QGraphicsItem *childParent = itemChild->parentItem();
-
74#ifdef QT_DEBUG -
75 if (childParent && childParent != newParent && itemChild->isWidget() && qt_graphicsLayoutDebug()) { -
76 QGraphicsWidget *w = static_cast<QGraphicsWidget*>(layoutChild); -
77 qWarning("QGraphicsLayout::addChildLayout: widget %s \"%s\" in wrong parent; moved to correct parent", -
78 w->metaObject()->className(), w->objectName().toLocal8Bit().constData()); -
79 } -
80#endif -
81 if (childParent != newParent)
evaluated: childParent != newParent
TRUEFALSE
yes
Evaluation Count:82
yes
Evaluation Count:36
36-82
82 itemChild->setParentItem(newParent);
executed: itemChild->setParentItem(newParent);
Execution Count:82
82
83 }
executed: }
Execution Count:118
118
84 } -
85}
executed: }
Execution Count:261
261
86 -
87void QGraphicsLayoutPrivate::getMargin(qreal *result, qreal userMargin, QStyle::PixelMetric pm) const -
88{ -
89 if (!result)
partially evaluated: !result
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:8124
0-8124
90 return;
never executed: return;
0
91 Q_Q(const QGraphicsLayout);
executed (the execution status of this line is deduced): const QGraphicsLayout * const q = q_func();
-
92 -
93 QGraphicsLayoutItem *parent = q->parentLayoutItem();
executed (the execution status of this line is deduced): QGraphicsLayoutItem *parent = q->parentLayoutItem();
-
94 if (userMargin >= 0.0) {
evaluated: userMargin >= 0.0
TRUEFALSE
yes
Evaluation Count:5128
yes
Evaluation Count:2996
2996-5128
95 *result = userMargin;
executed (the execution status of this line is deduced): *result = userMargin;
-
96 } else if (!parent) {
executed: }
Execution Count:5128
evaluated: !parent
TRUEFALSE
yes
Evaluation Count:528
yes
Evaluation Count:2468
528-5128
97 *result = 0.0;
executed (the execution status of this line is deduced): *result = 0.0;
-
98 } else if (parent->isLayout()) { // sublayouts have 0 margin by default
executed: }
Execution Count:528
evaluated: parent->isLayout()
TRUEFALSE
yes
Evaluation Count:1684
yes
Evaluation Count:784
528-1684
99 *result = 0.0;
executed (the execution status of this line is deduced): *result = 0.0;
-
100 } else {
executed: }
Execution Count:1684
1684
101 *result = 0.0;
executed (the execution status of this line is deduced): *result = 0.0;
-
102 if (QGraphicsItem *layoutParentItem = parentItem()) {
partially evaluated: QGraphicsItem *layoutParentItem = parentItem()
TRUEFALSE
yes
Evaluation Count:784
no
Evaluation Count:0
0-784
103 if (layoutParentItem->isWidget())
partially evaluated: layoutParentItem->isWidget()
TRUEFALSE
yes
Evaluation Count:784
no
Evaluation Count:0
0-784
104 *result = (qreal)static_cast<QGraphicsWidget*>(layoutParentItem)->style()->pixelMetric(pm, 0);
executed: *result = (qreal)static_cast<QGraphicsWidget*>(layoutParentItem)->style()->pixelMetric(pm, 0);
Execution Count:784
784
105 }
executed: }
Execution Count:784
784
106 }
executed: }
Execution Count:784
784
107} -
108 -
109Qt::LayoutDirection QGraphicsLayoutPrivate::visualDirection() const -
110{ -
111 if (QGraphicsItem *maybeWidget = parentItem()) {
evaluated: QGraphicsItem *maybeWidget = parentItem()
TRUEFALSE
yes
Evaluation Count:494
yes
Evaluation Count:3
3-494
112 if (maybeWidget->isWidget())
partially evaluated: maybeWidget->isWidget()
TRUEFALSE
yes
Evaluation Count:494
no
Evaluation Count:0
0-494
113 return static_cast<QGraphicsWidget*>(maybeWidget)->layoutDirection();
executed: return static_cast<QGraphicsWidget*>(maybeWidget)->layoutDirection();
Execution Count:494
494
114 }
never executed: }
0
115 return QApplication::layoutDirection();
executed: return QApplication::layoutDirection();
Execution Count:3
3
116} -
117 -
118static bool removeLayoutItemFromLayout(QGraphicsLayout *lay, QGraphicsLayoutItem *layoutItem) -
119{ -
120 if (!lay)
partially evaluated: !lay
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:3
0-3
121 return false;
never executed: return false;
0
122 -
123 for (int i = lay->count() - 1; i >= 0; --i) {
partially evaluated: i >= 0
TRUEFALSE
yes
Evaluation Count:4
no
Evaluation Count:0
0-4
124 QGraphicsLayoutItem *child = lay->itemAt(i);
executed (the execution status of this line is deduced): QGraphicsLayoutItem *child = lay->itemAt(i);
-
125 if (child && child->isLayout()) {
partially evaluated: child
TRUEFALSE
yes
Evaluation Count:4
no
Evaluation Count:0
partially evaluated: child->isLayout()
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:4
0-4
126 if (removeLayoutItemFromLayout(static_cast<QGraphicsLayout*>(child), layoutItem))
never evaluated: removeLayoutItemFromLayout(static_cast<QGraphicsLayout*>(child), layoutItem)
0
127 return true;
never executed: return true;
0
128 } else if (child == layoutItem) {
never executed: }
evaluated: child == layoutItem
TRUEFALSE
yes
Evaluation Count:3
yes
Evaluation Count:1
0-3
129 lay->removeAt(i);
executed (the execution status of this line is deduced): lay->removeAt(i);
-
130 return true;
executed: return true;
Execution Count:3
3
131 } -
132 } -
133 return false;
never executed: return false;
0
134} -
135 -
136/*! -
137 \internal -
138 -
139 This function is called from subclasses to add a layout item \a layoutItem -
140 to a layout. -
141 -
142 It takes care of automatically reparenting graphics items, if needed. -
143 -
144 If \a layoutItem is a is already in a layout, it will remove it from that layout. -
145 -
146*/ -
147void QGraphicsLayoutPrivate::addChildLayoutItem(QGraphicsLayoutItem *layoutItem) -
148{ -
149 Q_Q(QGraphicsLayout);
executed (the execution status of this line is deduced): QGraphicsLayout * const q = q_func();
-
150 if (QGraphicsLayoutItem *maybeLayout = layoutItem->parentLayoutItem()) {
evaluated: QGraphicsLayoutItem *maybeLayout = layoutItem->parentLayoutItem()
TRUEFALSE
yes
Evaluation Count:3
yes
Evaluation Count:1339
3-1339
151 if (maybeLayout->isLayout())
partially evaluated: maybeLayout->isLayout()
TRUEFALSE
yes
Evaluation Count:3
no
Evaluation Count:0
0-3
152 removeLayoutItemFromLayout(static_cast<QGraphicsLayout*>(maybeLayout), layoutItem);
executed: removeLayoutItemFromLayout(static_cast<QGraphicsLayout*>(maybeLayout), layoutItem);
Execution Count:3
3
153 }
executed: }
Execution Count:3
3
154 layoutItem->setParentLayoutItem(q);
executed (the execution status of this line is deduced): layoutItem->setParentLayoutItem(q);
-
155 if (layoutItem->isLayout()) {
evaluated: layoutItem->isLayout()
TRUEFALSE
yes
Evaluation Count:219
yes
Evaluation Count:1123
219-1123
156 if (QGraphicsItem *parItem = parentItem()) {
evaluated: QGraphicsItem *parItem = parentItem()
TRUEFALSE
yes
Evaluation Count:42
yes
Evaluation Count:177
42-177
157 static_cast<QGraphicsLayout*>(layoutItem)->d_func()->reparentChildItems(parItem);
executed (the execution status of this line is deduced): static_cast<QGraphicsLayout*>(layoutItem)->d_func()->reparentChildItems(parItem);
-
158 }
executed: }
Execution Count:42
42
159 } else {
executed: }
Execution Count:219
219
160 if (QGraphicsItem *item = layoutItem->graphicsItem()) {
evaluated: QGraphicsItem *item = layoutItem->graphicsItem()
TRUEFALSE
yes
Evaluation Count:1120
yes
Evaluation Count:3
3-1120
161 QGraphicsItem *newParent = parentItem();
executed (the execution status of this line is deduced): QGraphicsItem *newParent = parentItem();
-
162 QGraphicsItem *oldParent = item->parentItem();
executed (the execution status of this line is deduced): QGraphicsItem *oldParent = item->parentItem();
-
163 if (oldParent == newParent || !newParent)
evaluated: oldParent == newParent
TRUEFALSE
yes
Evaluation Count:697
yes
Evaluation Count:423
evaluated: !newParent
TRUEFALSE
yes
Evaluation Count:38
yes
Evaluation Count:385
38-697
164 return;
executed: return;
Execution Count:735
735
165 -
166#ifdef QT_DEBUG -
167 if (oldParent && item->isWidget()) { -
168 QGraphicsWidget *w = static_cast<QGraphicsWidget*>(item); -
169 qWarning("QGraphicsLayout::addChildLayoutItem: %s \"%s\" in wrong parent; moved to correct parent", -
170 w->metaObject()->className(), w->objectName().toLocal8Bit().constData()); -
171 } -
172#endif -
173 -
174 item->setParentItem(newParent);
executed (the execution status of this line is deduced): item->setParentItem(newParent);
-
175 }
executed: }
Execution Count:385
385
176 }
executed: }
Execution Count:388
388
177} -
178 -
179void QGraphicsLayoutPrivate::activateRecursive(QGraphicsLayoutItem *item) -
180{ -
181 if (item->isLayout()) {
evaluated: item->isLayout()
TRUEFALSE
yes
Evaluation Count:323
yes
Evaluation Count:852
323-852
182 QGraphicsLayout *layout = static_cast<QGraphicsLayout *>(item);
executed (the execution status of this line is deduced): QGraphicsLayout *layout = static_cast<QGraphicsLayout *>(item);
-
183 if (layout->d_func()->activated) {
evaluated: layout->d_func()->activated
TRUEFALSE
yes
Evaluation Count:71
yes
Evaluation Count:252
71-252
184 if (QGraphicsLayout::instantInvalidatePropagation()) {
partially evaluated: QGraphicsLayout::instantInvalidatePropagation()
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:71
0-71
185 return;
never executed: return;
0
186 } else { -
187 layout->invalidate(); // ### LOOKS SUSPICIOUSLY WRONG!!???
executed (the execution status of this line is deduced): layout->invalidate();
-
188 }
executed: }
Execution Count:71
71
189 } -
190 -
191 for (int i = layout->count() - 1; i >= 0; --i) {
evaluated: i >= 0
TRUEFALSE
yes
Evaluation Count:923
yes
Evaluation Count:323
323-923
192 QGraphicsLayoutItem *childItem = layout->itemAt(i);
executed (the execution status of this line is deduced): QGraphicsLayoutItem *childItem = layout->itemAt(i);
-
193 if (childItem)
partially evaluated: childItem
TRUEFALSE
yes
Evaluation Count:923
no
Evaluation Count:0
0-923
194 activateRecursive(childItem);
executed: activateRecursive(childItem);
Execution Count:923
923
195 }
executed: }
Execution Count:923
923
196 layout->d_func()->activated = true;
executed (the execution status of this line is deduced): layout->d_func()->activated = true;
-
197 }
executed: }
Execution Count:323
323
198}
executed: }
Execution Count:1175
1175
199 -
200 -
201QT_END_NAMESPACE -
202 -
203#endif //QT_NO_GRAPHICSVIEW -
204 -
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