class DockTitleBar(QWidget, object):
def __init__(self, dock_widget, renamable=False):
super(DockTitleBar, self).__init__(dock_widget)
self._renamable = renamable
main_layout = QHBoxLayout()
main_layout.setContentsMargins(0, 0, 0, 1)
self.setLayout(main_layout)
self._buttons_box = QGroupBox('')
self._buttons_box.setObjectName('Docked')
self._buttons_layout = QHBoxLayout()
self._buttons_layout.setSpacing(1)
self._buttons_layout.setMargin(2)
self._buttons_box.setLayout(self._buttons_layout)
main_layout.addWidget(self._buttons_box)
self._title_label = QLabel(self)
self._title_label.setStyleSheet('background: transparent')
self._title_edit = QLineEdit(self)
self._title_edit.setVisible(False)
self._button_size = QSize(14, 14)
self._dock_btn = QToolButton(self)
self._dock_btn.setIcon(resources.icon('restore_window', theme='color'))
self._dock_btn.setMaximumSize(self._button_size)
self._dock_btn.setAutoRaise(True)
self._close_btn = QToolButton(self)
self._close_btn.setIcon(resources.icon('close_window', theme='color'))
self._close_btn.setMaximumSize(self._button_size)
self._close_btn.setAutoRaise(True)
self._buttons_layout.addSpacing(2)
self._buttons_layout.addWidget(self._title_label)
self._buttons_layout.addWidget(self._title_edit)
self._buttons_layout.addStretch()
self._buttons_layout.addSpacing(5)
self._buttons_layout.addWidget(self._dock_btn)
self._buttons_layout.addWidget(self._close_btn)
self._buttons_box.mouseDoubleClickEvent = self.mouseDoubleClickEvent
self._buttons_box.mousePressEvent = self.mousePressEvent
self._buttons_box.mouseMoveEvent = self.mouseMoveEvent
self._buttons_box.mouseReleaseEvent = self.mouseReleaseEvent
dock_widget.featuresChanged.connect(self._on_dock_features_changed)
self._title_edit.editingFinished.connect(self._on_finish_edit)
self._dock_btn.clicked.connect(self._on_dock_btn_clicked)
self._close_btn.clicked.connect(self._on_close_btn_clicked)
self._on_dock_features_changed(dock_widget.features())
self.set_title(dock_widget.windowTitle())
dock_widget.installEventFilter(self)
dock_widget.topLevelChanged.connect(self._on_change_floating_style)
@property
def renamable(self):
return self._renamable
@renamable.setter
def renamable(self, flag):
self._renamable = flag
def eventFilter(self, obj, event):
if event.type() == QEvent.WindowTitleChange:
self.set_title(obj.windowTitle())
return super(DockTitleBar, self).eventFilter(obj, event)
def mouseMoveEvent(self, event):
event.ignore()
def mousePressEvent(self, event):
event.ignore()
def mouseReleaseEvent(self, event):
event.ignore()
def mouseDoubleClickEvent(self, event):
if event.pos().x() <= self._title_label.width() and self._renamable:
self._start_edit()
else:
super(DockTitleBar, self).mouseDoubleClickEvent(event)
def update(self, *args, **kwargs):
self._on_change_floating_style(self.parent().isFloating())
super(DockTitleBar, self).update(*args, **kwargs)
def set_title(self, title):
self._title_label.setText(title)
self._title_edit.setText(title)
def add_button(self, button):
button.setAutoRaise(True)
button.setMaximumSize(self._button_size)
self._buttons_layout.insertWidget(5, button)
def _start_edit(self):
self._title_label.hide()
self._title_edit.show()
self._title_edit.setFocus()
def _finish_edit(self):
self._title_edit.hide()
self._title_label.show()
self.parent().setWindowTitle(self._title_edit.text())
def _on_dock_features_changed(self, features):
if not features & QDockWidget.DockWidgetVerticalTitleBar:
self._close_btn.setVisible(features
& QDockWidget.DockWidgetClosable)
self._dock_btn.setVisible(features
& QDockWidget.DockWidgetFloatable)
else:
raise ValueError('Vertical title bar is not supported!')
def _on_finish_edit(self):
self._finish_edit()
def _on_dock_btn_clicked(self):
self.parent().setFloating(not self.parent().isFloating())
def _on_close_btn_clicked(self):
self.parent().toggleViewAction().setChecked(False)
self.parent().close()
def _on_change_floating_style(self, state):
pass
class Client(QDialog):
def __init__(self, parent: QWidget = None):
super().__init__(parent)
self._in = QDataStream()
self.blockSize = 0
self.currentFortune = ""
self.hostLineEdit = QLineEdit("fortune")
self.getFortuneButton = QPushButton(self.tr("Get Fortune"))
self.statusLabel = QLabel(
self.tr(
"This examples requires that you run the Local Fortune Server example as well."
)
)
self.socket = QLocalSocket()
self.setWindowFlags(self.windowFlags() & ~Qt.WindowContextHelpButtonHint)
hostLabel = QLabel(self.tr("&Server name:"))
hostLabel.setBuddy(self.hostLineEdit)
self.statusLabel.setWordWrap(True)
self.getFortuneButton.setDefault(True)
quitButton = QPushButton(self.tr("Quit"))
buttonBox = QDialogButtonBox()
buttonBox.addButton(self.getFortuneButton, QDialogButtonBox.ActionRole)
buttonBox.addButton(quitButton, QDialogButtonBox.RejectRole)
self._in.setDevice(self.socket)
self._in.setVersion(QDataStream.Qt_5_10)
self.hostLineEdit.textChanged.connect(self.enableGetFortuneButton)
self.getFortuneButton.clicked.connect(self.requestNewFortune)
quitButton.clicked.connect(self.close)
self.socket.readyRead.connect(self.readFortune)
self.socket.errorOccurred.connect(self.displayError)
mainLayout = QGridLayout(self)
mainLayout.addWidget(hostLabel, 0, 0)
mainLayout.addWidget(self.hostLineEdit, 0, 1)
mainLayout.addWidget(self.statusLabel, 2, 0, 1, 2)
mainLayout.addWidget(buttonBox, 3, 0, 1, 2)
self.setWindowTitle(QGuiApplication.applicationDisplayName())
self.hostLineEdit.setFocus()
@Slot()
def requestNewFortune(self):
self.getFortuneButton.setEnabled(False)
self.blockSize = 0
self.socket.abort()
self.socket.connectToServer(self.hostLineEdit.text())
@Slot()
def readFortune(self):
if self.blockSize == 0:
# Relies on the fact that QDataStream serializes a quint32 into
# sizeof(quint32) bytes
if self.socket.bytesAvailable() < 4: # (int)sizeof(quint32))
return
self.blockSize = self._in.readUInt32()
if self.socket.bytesAvailable() < self.blockSize or self._in.atEnd():
return
nextFortune = ""
nextFortune = self._in.readQString()
if nextFortune == self.currentFortune:
QTimer.singleShot(0, self.requestNewFortune)
return
currentFortune = nextFortune
self.statusLabel.setText(currentFortune)
self.getFortuneButton.setEnabled(True)
@Slot(QLocalSocket.LocalSocketError)
def displayError(self, socketError):
if socketError == QLocalSocket.ServerNotFoundError:
QMessageBox.information(
self,
self.tr("Local Fortune Client"),
self.tr(
"The host was not found. Please make sure "
"that the server is running and that the "
"server name is correct."
),
)
elif socketError == QLocalSocket.ConnectionRefusedError:
QMessageBox.information(
self,
self.tr("Local Fortune Client"),
self.tr(
"The connection was refused by the peer. "
"Make sure the fortune server is running, "
"and check that the server name is correct."
),
)
elif socketError == QLocalSocket.PeerClosedError:
return
else:
QMessageBox.information(
self,
self.tr("Local Fortune Client"),
self.tr(
"The following error occurred: %s." % (self.socket.errorString())
),
)
self.getFortuneButton.setEnabled(True)
@Slot()
def enableGetFortuneButton(self):
self.getFortuneButton.setEnabled(bool(self.hostLineEdit.ext()))