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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 
37 QT_BEGIN_NAMESPACE
38 
39 namespace qdesigner_internal {
InPlaceWidgetHelper(QWidget * editorWidget,QWidget * parentWidget,QDesignerFormWindowInterface * fw)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(Qt::WA_NoChildEventsForParent))
45     {
46         m_editorWidget->setAttribute(Qt::WA_DeleteOnClose);
47         m_editorWidget->setParent(m_parentWidget->window());
48         m_parentWidget->installEventFilter(this);
49         m_editorWidget->installEventFilter(this);
50         connect(m_editorWidget, &QObject::destroyed,
51                 fw->mainContainer(), QOverload<>::of(&QWidget::setFocus));
52     }
53 
~InPlaceWidgetHelper()54     InPlaceWidgetHelper::~InPlaceWidgetHelper()
55     {
56         if (m_parentWidget)
57             m_parentWidget->setAttribute(Qt::WA_NoChildEventsForParent, m_noChildEvent);
58     }
59 
alignment() const60     Qt::Alignment InPlaceWidgetHelper::alignment() const {
61          if (m_parentWidget->metaObject()->indexOfProperty("alignment") != -1)
62              return Qt::Alignment(m_parentWidget->property("alignment").toInt());
63 
64          if (qobject_cast<const QPushButton *>(m_parentWidget)
65              || qobject_cast<const QToolButton *>(m_parentWidget) /* tool needs to be more complex */)
66              return Qt::AlignHCenter;
67 
68          return Qt::AlignJustify;
69      }
70 
71 
eventFilter(QObject * object,QEvent * e)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(object, e);
106     }
107 }
108 
109 QT_END_NAMESPACE
110