def paintEvent(self, event):
painter = QPainter(self)
#painter.setPen(QtCore.Qt.black)
#painter.translate(self.x(), self.y())
painter.rotate(self.angle)
painter.drawPixmap(0, 0, self.width(), self.height(), self._pixmap)
painter.end()
def mouseMoveEvent(self, event):
'''
Determine if the current movement is a drag. If it is, convert it into a QDrag. If the
drag ends inside the tab bar, emit an move_tab_signal. If the drag ends outside the tab
bar, emit an detach_tab_signal.
'''
# Determine if the current movement is detected as a drag
if not self.drag_start_pos.isNull() and ((event.pos() - self.drag_start_pos).manhattanLength() > QApplication.startDragDistance()):
self.drag_initiated = True
# If the current movement is a drag initiated by the left button
if ((event.buttons() & Qt.LeftButton)) and self.drag_initiated:
# Stop the move event
finishMoveEvent = QMouseEvent(QEvent.MouseMove, event.pos(), Qt.NoButton, Qt.NoButton, Qt.NoModifier)
QTabBar.mouseMoveEvent(self, finishMoveEvent)
# Convert the move event into a drag
drag = QDrag(self)
mime_data = QMimeData()
mime_data.setData('action', b'application/tab-detach')
drag.setMimeData(mime_data)
# Create the appearance of dragging the tab content
# tab_index = self.tabAt(self.drag_start_pos)
pixmap = self.parentWidget().grab()
targetPixmap = QPixmap(pixmap.size())
targetPixmap.fill(Qt.transparent)
painter = QPainter(targetPixmap)
painter.setOpacity(0.85)
painter.drawPixmap(0, 0, pixmap)
painter.end()
drag.setPixmap(targetPixmap)
# Initiate the drag
dropAction = drag.exec_(Qt.MoveAction | Qt.CopyAction)
# If the drag completed outside of the tab bar, detach the tab and move
# the content to the current cursor position
if dropAction == Qt.IgnoreAction:
event.accept()
self.detach_tab_signal.emit(self.tabAt(self.drag_start_pos), self.mouse_cursor.pos(), False)
elif dropAction == Qt.MoveAction:
# else if the drag completed inside the tab bar, move the selected tab to the new position
if not self.drag_droped_pos.isNull():
self.move_tab_signal.emit(self.tabAt(self.drag_start_pos), self.tabAt(self.drag_droped_pos))
else:
# else if the drag completed inside the tab bar new TabBar, move the selected tab to the new TabBar
self.detach_tab_signal.emit(self.tabAt(self.drag_start_pos), self.mouse_cursor.pos(), False)
event.accept()
else:
QTabBar.mouseMoveEvent(self, event)
def make_icon(self, image_list, mode=QIcon.Normal, state=QIcon.On):
"""
Helper function to create QIcons from lists of image files
Warning: svg files interleaved with other files will not render correctly
:param image_list: list of image paths to layer into an icon.
:type image: list of str
:param mode: The mode of the QIcon to be created.
:type mode: int
:param state: the state of the QIcon to be created.
:type state: int
"""
if type(image_list) is not list:
image_list = [image_list]
if len(image_list) <= 0:
raise TypeError('The list of images is empty.')
num_svg = 0
for item in image_list:
if item[-4:].lower() == '.svg':
num_svg = num_svg + 1
if num_svg != len(image_list):
# Legacy support for non-svg images
icon_pixmap = QPixmap()
icon_pixmap.load(image_list[0])
painter = QPainter(icon_pixmap)
for item in image_list[1:]:
painter.drawPixmap(0, 0, QPixmap(item))
icon = QIcon()
icon.addPixmap(icon_pixmap, mode, state)
painter.end()
return icon
else:
# rendering SVG files into a QImage
renderer = QSvgRenderer(image_list[0])
icon_image = QImage(renderer.defaultSize(), QImage.Format_ARGB32)
icon_image.fill(0)
painter = QPainter(icon_image)
renderer.render(painter)
if len(image_list) > 1:
for item in image_list[1:]:
renderer.load(item)
renderer.render(painter)
painter.end()
# Convert QImage into a pixmap to create the icon
icon_pixmap = QPixmap()
icon_pixmap.convertFromImage(icon_image)
icon = QIcon(icon_pixmap)
return icon
def make_icon(self, image_list, mode=QIcon.Normal, state=QIcon.On):
"""
Helper function to create QIcons from lists of image files
Warning: svg files interleaved with other files will not render correctly
:param image_list: list of image paths to layer into an icon.
:type image: list of str
:param mode: The mode of the QIcon to be created.
:type mode: int
:param state: the state of the QIcon to be created.
:type state: int
"""
if type(image_list) is not list:
image_list = [image_list]
if len(image_list) <= 0:
raise TypeError('The list of images is empty.')
num_svg = 0
for item in image_list:
if item[-4:].lower() == '.svg':
num_svg = num_svg + 1
if num_svg != len(image_list):
# Legacy support for non-svg images
icon_pixmap = QPixmap()
icon_pixmap.load(image_list[0])
painter = QPainter(icon_pixmap)
for item in image_list[1:]:
painter.drawPixmap(0, 0, QPixmap(item))
icon = QIcon()
icon.addPixmap(icon_pixmap, mode, state)
painter.end()
return icon
else:
# rendering SVG files into a QImage
renderer = QSvgRenderer(image_list[0])
icon_image = QImage(renderer.defaultSize(), QImage.Format_ARGB32)
icon_image.fill(0)
painter = QPainter(icon_image)
renderer.render(painter)
if len(image_list) > 1:
for item in image_list[1:]:
renderer.load(item)
renderer.render(painter)
painter.end()
# Convert QImage into a pixmap to create the icon
icon_pixmap = QPixmap()
icon_pixmap.convertFromImage(icon_image)
icon = QIcon(icon_pixmap)
return icon
