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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
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17** GNU General Public License Usage
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20** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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27****************************************************************************/
28
29#include "abstractformwindow.h"
30#include "inplace_widget_helper.h"
31
32#include <QtGui/qevent.h>
33#include <QtWidgets/qpushbutton.h>
34#include <QtWidgets/qtoolbutton.h>
35#include <QtWidgets/qshortcut.h>
36
37QT_BEGIN_NAMESPACE
38
39namespace qdesigner_internal {
40 InPlaceWidgetHelper::InPlaceWidgetHelper(QWidget *editorWidget, QWidget *parentWidget, QDesignerFormWindowInterface *fw)
41 : QObject(nullptr),
42 m_editorWidget(editorWidget),
43 m_parentWidget(parentWidget),
44 m_noChildEvent(m_parentWidget->testAttribute(attribute: Qt::WA_NoChildEventsForParent))
45 {
46 m_editorWidget->setAttribute(Qt::WA_DeleteOnClose);
47 m_editorWidget->setParent(m_parentWidget->window());
48 m_parentWidget->installEventFilter(filterObj: this);
49 m_editorWidget->installEventFilter(filterObj: this);
50 connect(sender: m_editorWidget, signal: &QObject::destroyed,
51 receiver: fw->mainContainer(), slot: QOverload<>::of(ptr: &QWidget::setFocus));
52 }
53
54 InPlaceWidgetHelper::~InPlaceWidgetHelper()
55 {
56 if (m_parentWidget)
57 m_parentWidget->setAttribute(Qt::WA_NoChildEventsForParent, on: m_noChildEvent);
58 }
59
60 Qt::Alignment InPlaceWidgetHelper::alignment() const {
61 if (m_parentWidget->metaObject()->indexOfProperty(name: "alignment") != -1)
62 return Qt::Alignment(m_parentWidget->property(name: "alignment").toInt());
63
64 if (qobject_cast<const QPushButton *>(object: m_parentWidget)
65 || qobject_cast<const QToolButton *>(object: m_parentWidget) /* tool needs to be more complex */)
66 return Qt::AlignHCenter;
67
68 return Qt::AlignJustify;
69 }
70
71
72 bool InPlaceWidgetHelper::eventFilter(QObject *object, QEvent *e)
73 {
74 if (object == m_parentWidget) {
75 if (e->type() == QEvent::Resize) {
76 const QResizeEvent *event = static_cast<const QResizeEvent*>(e);
77 const QPoint localPos = m_parentWidget->geometry().topLeft();
78 const QPoint globalPos = m_parentWidget->parentWidget() ? m_parentWidget->parentWidget()->mapToGlobal(localPos) : localPos;
79 const QPoint newPos = (m_editorWidget->parentWidget() ? m_editorWidget->parentWidget()->mapFromGlobal(globalPos) : globalPos)
80 + m_posOffset;
81 const QSize newSize = event->size() + m_sizeOffset;
82 m_editorWidget->setGeometry(QRect(newPos, newSize));
83 }
84 } else if (object == m_editorWidget) {
85 if (e->type() == QEvent::ShortcutOverride) {
86 if (static_cast<QKeyEvent*>(e)->key() == Qt::Key_Escape) {
87 e->accept();
88 return false;
89 }
90 } else if (e->type() == QEvent::KeyPress) {
91 if (static_cast<QKeyEvent*>(e)->key() == Qt::Key_Escape) {
92 e->accept();
93 m_editorWidget->close();
94 return true;
95 }
96 } else if (e->type() == QEvent::Show) {
97 const QPoint localPos = m_parentWidget->geometry().topLeft();
98 const QPoint globalPos = m_parentWidget->parentWidget() ? m_parentWidget->parentWidget()->mapToGlobal(localPos) : localPos;
99 const QPoint newPos = m_editorWidget->parentWidget() ? m_editorWidget->parentWidget()->mapFromGlobal(globalPos) : globalPos;
100 m_posOffset = m_editorWidget->geometry().topLeft() - newPos;
101 m_sizeOffset = m_editorWidget->size() - m_parentWidget->size();
102 }
103 }
104
105 return QObject::eventFilter(watched: object, event: e);
106 }
107}
108
109QT_END_NAMESPACE
110

source code of qttools/src/designer/src/components/taskmenu/inplace_widget_helper.cpp