def mousePressEvent(self, event):
""" when a mouse button is pressed """
# a left mouse button lets the user drag the color
if event.button() == QtCore.Qt.LeftButton:
drag = QtGui.QDrag(self)
drag.setPixmap(self.grab())
mime = QtCore.QMimeData()
mime.setText(self.color)
drag.setMimeData(mime)
self.setStyleSheet(
"background-color: lightgray; border: 2px solid gray")
self.setDisabled(True)
self.setText("")
drag.exec()
self.setText(self.color)
self.setDisabled(False)
if self.color in self.maps:
self.setStyleSheet(
"text-align: center; border: 2px solid black; " +
self.getBackground())
else:
self.setStyleSheet(
"text-align: center; background-color: %s; border: 2px solid black"
% self.color)
# a right mouse button opens a color choose menu
elif event.button() == QtCore.Qt.RightButton:
self.openDialog()
def send(drag_src, data):
"""
desc:
Starts a drag event, and embeds a data dictionary as json text in the
mimedata.
arguments:
drag_src:
desc: The source widget.
type: QWidget
data:
desc: A data dictionary. The 'type' key identifies the type of
data that is being dropped.
type: dict
returns:
desc: A drag object. The start function is called automatically.
type: QDrag
"""
text = safe_decode(json.dumps(data), enc=u'utf-8')
mimedata = QtCore.QMimeData()
mimedata.setText(text)
drag = QtGui.QDrag(drag_src)
drag.setMimeData(mimedata)
drag.exec_()
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 onMoveTabSignal. If the drag ends outside the tab
bar, emit an onDetachTabSignal.
:param event: a mouse move event.
"""
# 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() < QtWidgets.QApplication.startDragDistance()):
self.drag_initiated = True
# If the current movement is a drag initiated by the left button
if (event.buttons() & QtCore.Qt.LeftButton) and self.drag_initiated:
# Stop the move event
finish_move_event = QtGui.QMouseEvent(QtCore.QEvent.MouseMove, event.pos(), QtCore.Qt.NoButton,
QtCore.Qt.NoButton, QtCore.Qt.NoModifier)
QtWidgets.QTabBar.mouseMoveEvent(self, finish_move_event)
# Convert the move event into a drag
drag = QtGui.QDrag(self)
mime_data = QtCore.QMimeData()
drag.setMimeData(mime_data)
if PYQT4:
pixmap = QtGui.QPixmap.grabWindow(self.parentWidget().currentWidget().winId())
else:
app = QtWidgets.QApplication.instance()
desktop = app.desktop()
screen_number = desktop.screenNumber(self.parentWidget().currentWidget())
screen = app.screens()[screen_number]
# Create the appearance of dragging the tab content
pixmap = QtGui.QScreen.grabWindow(screen, self.parentWidget().currentWidget().winId())
target_pixmap = QtGui.QPixmap(pixmap.size())
target_pixmap.fill(QtCore.Qt.transparent)
painter = QtGui.QPainter(target_pixmap)
painter.setOpacity(0.85)
painter.drawPixmap(0, 0, pixmap)
painter.end()
drag.setPixmap(target_pixmap)
# Initiate the drag
drop_action = drag.exec_(QtCore.Qt.MoveAction | QtCore.Qt.CopyAction)
# For Linux: Here, drag.exec_() will not return MoveAction on Linux. So it
# must be set manually
if self.drag_end_pos.x() != 0 and self.drag_end_pos.y() != 0:
drop_action = QtCore.Qt.MoveAction
# If the drag completed inside the tab bar, move the selected tab to the new position
if drop_action == QtCore.Qt.MoveAction:
if not self.drag_end_pos.isNull():
event.accept()
self.onMoveTabSignal.emit(self.tabAt(self.drag_start_pos), self.tabAt(self.drag_end_pos))
else:
QtWidgets.QTabBar.mouseMoveEvent(self, event)
def mouseMoveEvent(self, event):
# Determine if the current movement is detected as a drag
if not self.dragStartPos.isNull() and (
(event.pos() - self.dragStartPos).manhattanLength() >
QtWidgets.QApplication.startDragDistance()):
self.dragInitiated = True
# If the current movement is a drag initiated by the left button
if (((event.buttons() & QtCore.Qt.LeftButton))
and self.dragInitiated):
# Stop the move event
finishMoveEvent = QtGui.QMouseEvent(QtCore.QEvent.MouseMove,
event.pos(),
QtCore.Qt.NoButton,
QtCore.Qt.NoButton,
QtCore.Qt.NoModifier)
super().mouseMoveEvent(finishMoveEvent)
# Convert the move event into a drag
drag = QtGui.QDrag(self)
mimeData = QtCore.QMimeData()
mimeData.setData('action', b'application/tab-detach')
drag.setMimeData(mimeData)
#Create the appearance of dragging the tab content
pixmap = self.parentWidget().grab()
targetPixmap = QtGui.QPixmap(pixmap.size())
targetPixmap.fill(QtCore.Qt.transparent)
painter = QtGui.QPainter(targetPixmap)
painter.setOpacity(0.85)
painter.drawPixmap(0, 0, pixmap)
painter.end()
drag.setPixmap(targetPixmap)
# Initiate the drag
dropAction = drag.exec_(QtCore.Qt.MoveAction
| QtCore.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 == QtCore.Qt.IgnoreAction:
event.accept()
self.onDetachTabSignal.emit(self.tabAt(self.dragStartPos),
self.mouseCursor.pos())
# Else if the drag completed inside the tab bar, move the selected tab to the new position
elif dropAction == QtCore.Qt.MoveAction:
if not self.dragDropedPos.isNull():
event.accept()
self.onMoveTabSignal.emit(
self.tabAt(self.dragStartPos),
self.tabAt(self.dragDropedPos))
else:
super().mouseMoveEvent(event)
def mouseMoveEvent(self, event: QtGui.QMouseEvent):
if event.buttons() != QtCore.Qt.LeftButton:
event.ignore()
return
if (sub(event.pos(), self.dragStartPos)
).manhattanLength() < QtWidgets.QApplication.startDragDistance():
event.ignore()
return
self.move_me.emit(self)
mime_data = QtCore.QMimeData()
mime_data.setObjectName('frame')
drag = QtGui.QDrag(self)
drag.setMimeData(mime_data)
drop_action = drag.exec_(QtCore.Qt.MoveAction)
def DoFileExportDragDrop(window, page_key, media, alt_down):
drop_source = QG.QDrag(window)
data_object = QMimeDataHydrusFiles()
#
new_options = HG.client_controller.new_options
do_secret_discord_dnd_fix = new_options.GetBoolean(
'secret_discord_dnd_fix') and alt_down
#
client_files_manager = HG.client_controller.client_files_manager
original_paths = []
total_size = 0
for m in media:
hash = m.GetHash()
mime = m.GetMime()
total_size += m.GetSize()
original_path = client_files_manager.GetFilePath(
hash, mime, check_file_exists=False)
original_paths.append(original_path)
#
discord_dnd_fix_possible = new_options.GetBoolean(
'discord_dnd_fix'
) and len(original_paths) <= 50 and total_size < 200 * 1048576
temp_dir = HG.client_controller.temp_dir
if do_secret_discord_dnd_fix:
dnd_paths = original_paths
flags = QC.Qt.MoveAction
elif discord_dnd_fix_possible and os.path.exists(temp_dir):
dnd_paths = []
for original_path in original_paths:
filename = os.path.basename(original_path)
dnd_path = os.path.join(temp_dir, filename)
if not os.path.exists(dnd_path):
HydrusPaths.MirrorFile(original_path, dnd_path)
dnd_paths.append(dnd_path)
flags = QC.Qt.MoveAction | QC.Qt.CopyAction
else:
dnd_paths = original_paths
flags = QC.Qt.CopyAction
uri_list = []
for path in dnd_paths:
uri_list.append(QC.QUrl.fromLocalFile(path))
data_object.setUrls(uri_list)
#
hashes = [m.GetHash() for m in media]
data_object.setHydrusFiles(page_key, hashes)
# old way of doing this that makes some external programs (discord) reject it
'''
if page_key is None:
encoded_page_key = None
else:
encoded_page_key = page_key.hex()
data_obj = ( encoded_page_key, [ hash.hex() for hash in hashes ] )
data_str = json.dumps( data_obj )
data_bytes = bytes( data_str, 'utf-8' )
data_object.setData( 'application/hydrus-media', data_bytes )
'''
#
drop_source.setMimeData(data_object)
result = drop_source.exec_(flags, QC.Qt.CopyAction)
return result
def test_qdrag_functions(qtbot):
"""Test functions mapping for QtGui.QDrag."""
assert QtGui.QDrag.exec_ is not None
drag = QtGui.QDrag(None)
drag.exec_()