Python PyQt5.QtGui.QMouseEvent() Examples

def event_swap_buttons(event, event_type):
    """
    Create copy of mouse 'event' with swapped buttons.
    :param event: QMouseEvent
    :param even_type: QEvent.MouseButtonPress, QEvent.MouseButtonRelease, QEvent.MouseMove
    :return: QMouseEvent with swaped buttons parameters.
    """
    button = event.button()
    if event.button() == Event.Right:
        button = Event.Left
    elif event.button() == Event.Left:
        button = Event.Right
    left_flag = bool( event.buttons() & Event.Left)
    right_flag = bool( event.buttons() & Event.Right)

    new_buttons = event.buttons()
    # set the swapped flags
    new_buttons = (new_buttons & ~Event.Left) | Event.Left * right_flag
    new_buttons = (new_buttons & ~Event.Right) | Event.Right * left_flag
    new_event = QtGui.QMouseEvent(event_type, event.localPos(), button, new_buttons, event.modifiers())
    return new_event 

def mouseMoveEvent(self, evt: QtGui.QMouseEvent) -> None:
        if self.selection_mode == SELECTION_MODE.BOX:
            if not self._box_origin.isNull():
                self._box_picker.setGeometry(QRect(self._box_origin,evt.pos()).normalized())
        elif self.selection_mode == SELECTION_MODE.POLYGON:
            if self._current_polygon:
                if self._current_polygon.count > 0:
                    last_point: QPointF=self._current_polygon.last_point
                    self._polygon_guide_line.setZValue(1)
                    self._polygon_guide_line.show()
                    mouse_pos=self.mapToScene(evt.pos())
                    self._polygon_guide_line.setLine(last_point.x(),last_point.y(),mouse_pos.x(),mouse_pos.y())
            else:
                self._polygon_guide_line.hide()

        elif self.selection_mode == SELECTION_MODE.FREE and evt.buttons() and QtCore.Qt.LeftButton:
            if self._current_free_path:
                painter: QPainterPath=self._current_free_path.path()
                self._last_point_drawn=self.mapToScene(evt.pos())
                painter.lineTo(self._last_point_drawn)
                self._current_free_path.setPath(painter)

        super(ImageViewer, self).mouseMoveEvent(evt) 

def mousePressEvent(self, event):
	    
	    if event.button() == QtCore.Qt.LeftButton and self.draggin_idx == -1:
	        point = self._get_point(event)
	        #print(point)
	        event = QMouseEvent(QtCore.QEvent.MouseButtonPress, event.pos(), QtCore.Qt.LeftButton, QtCore.Qt.LeftButton, QtCore.Qt.NoModifier)
	        self.center = event.pos()
	        dist = self.points - point
	        #print('dist=',dist)
	        dist = dist[:,0]**2 + dist[:,1]**2
	        dist[dist>self.DELTA] = np.inf #obviate the distances above DELTA
	        if dist.min() < np.inf:
	            self.draggin_idx = dist.argmin()
	        #print(self.center.x(),self.center.y())

	        self.update() 

def mousePressEvent(self, event: QtGui.QMouseEvent):
        if not event.buttons() & Qt.LeftButton:
            return
        # drag detection
        self.drag_mode = self.latent_drag_mode
        if self.drag_mode == DragMode.CLIP_BOX:
            self.clip_box.press_state = self.clip_box.state
        wp = WindowPos.from_QPoint(event.pos())
        self.previous_mouse = wp
        # click detection
        self.maybe_clicking = True
        self.mouse_press_pos = QtCore.QPoint(event.pos().x(), event.pos().y())
        self.mouse_press_time = datetime.datetime.now()
        # cursor shape
        if self.drag_cursor != self.hover_cursor:
            self.setCursor(self.drag_cursor)
            self.update() 

def mousePressEvent(self, event: QtGui.QMouseEvent) -> None:
        if event.buttons() == QtCore.Qt.RightButton:
            event.ignore()
            return
        elif event.buttons() == QtCore.Qt.MiddleButton:
            # Drag event
            event.accept()
            self.moveStartX = event.x()
            self.moveStartY = event.y()
            return
        if event.modifiers() == QtCore.Qt.ShiftModifier:
            self.draggedMarker = self.getNearestMarker(event.x(), event.y())
        elif event.modifiers() == QtCore.Qt.ControlModifier:
            event.accept()
            self.draggedBox = True
            self.draggedBoxStart = (event.x(), event.y())
            return
        self.mouseMoveEvent(event) 

def mouseMoveEvent(self, a0: QtGui.QMouseEvent):
        # print("mousemove")
        # self.setStatusTip("123")
        x = int(a0.x() / self.width() * self.imgWidth)
        y = int(a0.y() / self.height() * self.imgHeight)
        s = "鼠标位置 x:{:4d},y:{:4d}".format(x, y)
        self.label_position.setText(s) 

def mouseMoveEvent(self, e: QMouseEvent):
        self._endPos = e.pos() - self._startPos
        self.move(self.pos() + self._endPos) 

def mousePressEvent(self, e: QMouseEvent):
        if e.button() == Qt.LeftButton:
            self._isTracking = True
            self._startPos = QPoint(e.x(), e.y()) 

def mouseReleaseEvent(self, e: QMouseEvent):
        if e.button() == Qt.LeftButton:
            self._isTracking = False
            self._startPos = None
            self._endPos = None 

def send_fake_event(self, val):
        self.fake_mousemove_event = ("libmpv", True)
        pos = self.tab_5.cursor().pos()
        if not self.pointer_moved:
            new_point = QtCore.QPoint(pos.x() + 1, pos.y())
            self.pointer_moved = True
        else:
            new_point = QtCore.QPoint(pos.x() - 1, pos.y())
            self.pointer_moved = False
        self.tab_5.cursor().setPos(new_point)
        if val == "mouse_release":
            event = QtGui.QMouseEvent(
                        QtCore.QEvent.MouseButtonRelease,
                        new_point,
                        QtCore.Qt.LeftButton,
                        QtCore.Qt.LeftButton,
                        QtCore.Qt.NoModifier,
                    )
        elif val == "mouse_move":
            event = QtGui.QMouseEvent(
                        QtCore.QEvent.MouseMove,
                        new_point,
                        QtCore.Qt.NoButton,
                        QtCore.Qt.NoButton,
                        QtCore.Qt.NoModifier,
                    )
        self.gui_signals.mouse_move_method((self.tab_5, event)) 

def send_fake_event(self, val):
        self.fake_mousemove_event = ("libmpv", True)
        pos = self.cursor().pos()
        if not self.pointer_moved:
            new_point = QtCore.QPoint(pos.x() + 1, pos.y())
            self.pointer_moved = True
        else:
            new_point = QtCore.QPoint(pos.x() - 1, pos.y())
            self.pointer_moved = False
        self.cursor().setPos(new_point)
        if val == "mouse_release":
            event = QtGui.QMouseEvent(
                        QtCore.QEvent.MouseButtonRelease,
                        new_point,
                        QtCore.Qt.LeftButton,
                        QtCore.Qt.LeftButton,
                        QtCore.Qt.NoModifier,
                    )
        elif val == "mouse_move":
            event = QtGui.QMouseEvent(
                        QtCore.QEvent.MouseMove,
                        new_point,
                        QtCore.Qt.NoButton,
                        QtCore.Qt.NoButton,
                        QtCore.Qt.NoModifier,
                    )
        self.ui.gui_signals.mouse_move_method((self, event)) 

def mousePressEvent(self, event: QMouseEvent):
        """Handle mouse press event for the widget."""
        api.status.clear("MousePressEvent")
        if not self._process_event(mouseevent_to_sequence(event)):
            super().mousePressEvent(event)  # type: ignore 

def mouseDoubleClickEvent(self, event: QMouseEvent):
        """Handle mouse press event for the widget."""
        api.status.clear("MouseDoubleClickEvent")
        if not self._process_event(
            mouseevent_to_sequence(event, prefix="double-button")
        ):
            super().mouseDoubleClickEvent(event)  # type: ignore 

def mouseevent_to_sequence(event: QMouseEvent, prefix: str = "button") -> SequenceT:
    """Convert QMouseEvent to meaningful string sequence."""
    button_names = {
        Qt.LeftButton: "left",
        Qt.MiddleButton: "middle",
        Qt.RightButton: "right",
        Qt.BackButton: "back",
        Qt.ForwardButton: "forward",
    }
    button = event.button()
    button_name = button_names[button] if button in button_names else str(button)
    return (*_get_modifier_names(event), f"<{prefix}-{button_name}>") 

def _get_modifier_names(event: Union[QKeyEvent, QMouseEvent]) -> List[str]:
    """Return the names of all modifiers pressed in the event."""
    modmask2str = {
        Qt.ControlModifier: "<ctrl>",
        Qt.AltModifier: "<alt>",
        Qt.MetaModifier: "<meta>",
    }
    modifiers = event.modifiers()
    return [
        mod_name
        for mask, mod_name in modmask2str.items()
        if modifiers & mask  # type: ignore
    ] 

def _create_mouse_event(button, modifier=Qt.NoModifier):
    return QMouseEvent(
        QEvent.MouseButtonPress, QPoint(0, 0), QPoint(0, 0), button, button, modifier
    ) 

def mousePressEvent(self, event: QMouseEvent) -> None:
            if event.button() == Qt.LeftButton:
                self.triggered.emit()
            super(VCFilterMenuAction.VCFilterMenuWidget, self).mousePressEvent(event) 

def mousePressEvent(self, event: QMouseEvent) -> None:
        event.accept()
        if event.button() == Qt.LeftButton:
            if self.parent is None:
                self.originalParent.playMedia()
            else:
                self.parent.playMedia() 

def mouseDoubleClickEvent(self, event: QMouseEvent) -> None:
        event.accept()
        if self.parent is None:
            self.originalParent.toggleFullscreen()
        else:
            self.parent.toggleFullscreen() 

def mousePressEvent(self, event: QMouseEvent):
        if event.button() == Qt.LeftButton:
            self.close() 

def keyPressEvent(self, event: QKeyEvent) -> None:
        qApp.sendEvent(self.parent, event)

    # def mouseMoveEvent(self, event: QMouseEvent) -> None:
    #     opt = QStyleOptionSlider()
    #     self.initStyleOption(opt)
    #     handle = self.style().subControlRect(QStyle.CC_Slider, opt, QStyle.SC_SliderHandle, self)
    #     if handle.x() <= event.pos().x() <= (handle.x() + handle.width()):
    #         self.setCursor(Qt.PointingHandCursor)
    #         self._handleHover = True
    #     else:
    #         self.unsetCursor()
    #         self._handleHover = False
    #     self.initStyle()
    #     super(VideoSlider, self).mouseMoveEvent(event) 

def mousePressEvent(self, event: QMouseEvent) -> None:
        if event.button() == Qt.LeftButton and self.checkbox is not None:
            self.checkbox.toggle()
        super(StreamSelectorLabel, self).mousePressEvent(event) 

def mouseMoveEvent(self, event: QMouseEvent) -> None:
        if self.count() > 0:
            if self.indexAt(event.pos()).isValid():
                self.setCursor(Qt.PointingHandCursor)
            else:
                self.setCursor(Qt.ArrowCursor)
        super(VideoList, self).mouseMoveEvent(event) 

def mouseReleaseEvent(self, QMouseEvent):
        self.pressing = False 

def mouseReleaseEvent(self, QMouseEvent):
        self.pressing = False 

def mouseReleaseEvent(self, event: QMouseEvent):
        event.accept()
        if event.button() == 1:
            self.released.emit(event) 

def mouseMoveEvent(self, event: QMouseEvent):
        self.scene().mousePos = event.pos() 

def mousePressEvent(self, event: QMouseEvent):

        pattern = re.compile(FOLDING_PATTERN)
        blockedClickedOn: QTextBlock = self.getBlockUnderCursor(event)

        if pattern.match(blockedClickedOn.text()):

            if blockedClickedOn.userState() == 0:  # block and its contents are unfolded

                self.fold(blockedClickedOn)

            else:

                self.unfold(blockedClickedOn) 

def getBlockUnderCursor(self, event: QMouseEvent) -> QTextBlock:

        height = self.editor.fontMetrics().height()
        y = event.pos().y()

        for array in self.editor.currentlyVisibleBlocks:

            if array[0] < y < height + array[0]:

                return array[1] 

def mouseMoveEvent(self, event: QMouseEvent) -> None:

        pattern = re.compile(FOLDING_PATTERN)
        block: QTextBlock = self.editor.getBlockUnderCursor(event)

        if pattern.match(block.text()):

            cursor: QCursor = QCursor(Qt.PointingHandCursor)
            QApplication.setOverrideCursor(cursor)
            QApplication.changeOverrideCursor(cursor)

        else:

            self.returnCursorToNormal() 

def mousePressEvent(self, event: QMouseEvent):
        pass 

def getBlockUnderCursor(self, event: QMouseEvent) -> QTextBlock:
        height = self.editor.fontMetrics().height()
        y = event.pos().y()
        for array in self.editor.currentlyVisibleBlocks:
            print(array[0], y, height+array[0])
            if array[0] < y < height + array[0]:

                return array[1] 

def mouseMoveEvent(self, event: QtGui.QMouseEvent) -> None:
        event.ignore() 

def mouseMoveEvent(self, e: QtGui.QMouseEvent) -> None:
        p=QtCore.QPoint(e.x(),e.y())
        p=self.mapToGlobal(p)
        x,y=p.x(),p.y()
        p=QtCore.QPoint(self._ui.point_frame.width()/2,self._ui.point_frame.height()/2)
        p=self._ui.point_frame.mapToGlobal(p)
        x1,y1=p.x(),p.y()
        a=math.atan2(y1-y,x-x1)*180/math.pi
        self._ui.point_frame._angle=a
        self._ui.point_frame.update() 

def mouseDoubleClickEvent(self, evt: QtGui.QMouseEvent) -> None:
        if self.childAt(evt.pos()) == self.thumbnail.widget():
            self.doubleClicked.emit(self) 

def mousePressEvent(self, evt: QtGui.QMouseEvent) -> None:
        if evt.button() == QtCore.Qt.LeftButton:
            if self.childAt(evt.pos()) == self.thumbnail.widget():
                self.is_selected=not self.is_selected 

def mouseMoveEvent(self, event: QMouseEvent) -> None:
        # print('mouseMoveEvent: x=%d, y=%d' % (event.x(), event.y()))
        if not self.rect().contains(event.pos()):
            self.close() 

def mouseMoveEvent(self, event: QMouseEvent) -> None:
        # print('mouseMoveEvent: x=%d, y=%d' % (event.x(), event.y()))
        if not self.rect().contains(event.pos()):
            self.close() 

def mouseReleaseEvent(self, evt: QtGui.QMouseEvent) -> None:
        if evt.button() == QtCore.Qt.LeftButton:
            if self.selection_mode == SELECTION_MODE.BOX:
                roi: QRect=self._box_picker.geometry()
                roi: QRectF=self.mapToScene(roi).boundingRect()
                pixmap_rect = self._pixmap.boundingRect()
                self._box_picker.hide()
                if pixmap_rect == roi.united(pixmap_rect):
                    rect=EditableBox(roi)
                    rect.label=self.current_label
                    self._scene.addItem(rect)
                    self.selection_mode=SELECTION_MODE.NONE
                    self.setDragMode(QGraphicsView.ScrollHandDrag)

            elif self.selection_mode == SELECTION_MODE.FREE and self._current_free_path:
                # create polygon
                self._current_free_path: QGraphicsPathItem
                path_rect = self._current_free_path.boundingRect()
                pixmap_rect=self._pixmap.boundingRect()
                if pixmap_rect == path_rect.united(pixmap_rect):
                    path=self._current_free_path.path()
                    path_polygon=EditablePolygon()
                    path_polygon.label = self.current_label
                    self._scene.addItem(path_polygon)
                    for i in range(0,path.elementCount(),10):
                        x,y=path.elementAt(i).x,path.elementAt(i).y
                        path_polygon.addPoint(QPointF(x,y))
                self._scene.removeItem(self._current_free_path)
                self.selection_mode=SELECTION_MODE.NONE
                self.setDragMode(QGraphicsView.ScrollHandDrag)


        super(ImageViewer, self).mouseReleaseEvent(evt) 

def mouseDoubleClickEvent(self, evt: QtGui.QMouseEvent) -> None:
        self.doubleClicked.emit(evt) 

def mousePressEvent(self, evt: QtGui.QMouseEvent) -> None:
        if evt.buttons() == QtCore.Qt.LeftButton:
            self.dragPos=evt.globalPos()
            evt.accept() 

def mouseDoubleClickEvent(self, a0: QtGui.QMouseEvent) -> None:
        if self.window().windowState() == QtCore.Qt.WindowMaximized:
            self.window().showNormal()
        else:
            self.window().showMaximized() 

def mouseMoveEvent(self, evt: QtGui.QMouseEvent) -> None:
        if evt.buttons() == QtCore.Qt.LeftButton:
            self.window().move(self.window().pos() + evt.globalPos()-self.dragPos)
            self.dragPos=evt.globalPos() 

def mousePressEvent(self, event: QMouseEvent):
        """
        Override mousePressEvent to support mouse button actions
        :param event:
        :return:
        """
        if self.video.kind == VIDEO_KIND_VOD:
            if event.button() == Qt.LeftButton and QApplication.keyboardModifiers() == Qt.ControlModifier:
                self.logger.error("Not Implemented: Select video")
            elif event.button() == Qt.LeftButton:
                left_button_rebind = read_config('SubFeed', 'left_mouse_action', literal_eval=False)

                if left_button_rebind == MOUSE_PRESS_OPEN_URL:
                    self.open_in_browser()
                elif left_button_rebind == MOUSE_PRESS_COPY_URL:
                    self.copy_url(mark_watched=True)
                elif left_button_rebind == MOUSE_PRESS_PLAY_URL:
                    url_player = self.str_to_list(read_config('Player', 'default_player', literal_eval=False))
                    self.open_in_player(self.video.url_video, url_player, isfile=False)
                elif left_button_rebind == MOUSE_PRESS_DOWNLOAD:
                    self.mark_downloaded()
                elif left_button_rebind == MOUSE_PRESS_DOWNLOAD_AND_COPY:
                    self.copy_url()
                    self.mark_downloaded()

            elif event.button() == Qt.MidButton and QApplication.keyboardModifiers() == Qt.ControlModifier:
                self.decrease_prio()
            elif event.button() == Qt.MidButton:
                self.mark_discarded()

        elif self.video.kind == VIDEO_KIND_LIVE or self.video.kind == VIDEO_KIND_LIVE_SCHEDULED \
                or self.video.kind == VIDEO_KIND_PREMIERE:
            if event.button() == Qt.MidButton:
                self.mark_discarded()
            elif event.button() == Qt.LeftButton:
                self.root.confirmation_dialog(VIDEO_IS_LIVE_MSG, self.mark_downloaded, title=VIDEO_IS_LIVE_TITLE,
                                              ok_text="Yes, stream it.",
                                              cancel_text="Abort, abort, ABORT!") 

def mousePressEvent(self, event: QMouseEvent):  # FIXME: Make mouse hotkeys based on hotkeys.ini
        """
        Override mousePressEvent to support mouse button actions
        :param event:
        :return:
        """
        if event.button() == Qt.MidButton and QApplication.keyboardModifiers() == Qt.ControlModifier:
            self.decrease_prio()
        elif event.button() == Qt.MidButton:
            self.mark_discarded()
        if event.button() == Qt.LeftButton and QApplication.keyboardModifiers() == Qt.ShiftModifier:
            self.open_in_player(self.video.vid_path, mark_watched=False)
        elif event.button() == Qt.LeftButton:
            self.open_in_player(self.video.vid_path) 

def mouseClickEvent(self, event: QtGui.QMouseEvent) -> None:
        self.maybe_clicking = False
        if self._add_marker_mode and (event.button() == Qt.LeftButton):
            image_pos = self.image_from_window_qpoint(event.pos())
            self.undo_stack.push(AddMarkerCommand(self, image_pos)) 

def mouseReleaseEvent(self, event: QtGui.QMouseEvent):
        # cursor shape
        if self.drag_cursor != self.hover_cursor:
            self.setCursor(self.hover_cursor)
        # drag detection
        if self.drag_mode == DragMode.CLIP_BOX and self.clip_box.press_state is not None and self.clip_box.press_state != self.clip_box.state:
            old_state = self.clip_box.press_state
            new_state = self.clip_box.state
            self.undo_stack.push(AdjustClipBoxCommand(self.clip_box, old_state, new_state))
        self.clip_box.press_state = None
        self.drag_mode = DragMode.NONE
        self.previous_mouse = None
        # click detection
        d2 = 1000
        if self.mouse_press_pos:
            dp = event.pos() - self.mouse_press_pos
            d2 = QtCore.QPoint.dotProduct(dp, dp)  # squared distance in pixels
        if d2 > 10:  # TODO: calibrate
            self.maybe_clicking = False  # too far
        dt = datetime.datetime.now() - self.mouse_press_time
        ms = dt.total_seconds() * 1000.0  # milliseconds
        if ms > 800:
            self.maybe_clicking = False
        if ms <= 0:
            self.maybe_clicking = False
        if self.maybe_clicking:
            self.mouseClickEvent(event)
        self.maybe_clicking = False
        self.mouse_press_pos = None 

def mousePressEvent(self, event: QtGui.QMouseEvent):
        global x1, y1, x2, y2, a1, b1, a2, b2, c1, d1, c2, d2, red, blue, green, ic, jc, kc, xi1, xf1, xi2, xf2, xi3, xf3, l1i, l1f, i
        #### Set initial point for rectangles ####
        if self.drawCanvas.underMouse() and QtCore.Qt.LeftButton: # mouse must be over the camera frame; left mouse click to draw
            if red:
                x1, y1 = event.pos().x()-10, event.pos().y()-70
            if green:
                a1, b1 = event.pos().x()-10, event.pos().y()-70
            if blue:
                c1, d1 = event.pos().x()-10, event.pos().y()-70
        #### Update manual calculation for RHEED oscillations on newer data ####
        if self.plot1.underMouse():
            if ic:
                xi1 = self.x1
            if not ic:
                xf1 = self.x1
                dt1 = round(((xf1 - xi1) / float(self.numpeaksLive.value())), 3)
                df1 = round((1/dt1), 3)
                self.rheed1cal = str(str(dt1)+' s or '+str(df1)+' Hz')
            ic = not ic 
        if self.plot2.underMouse():
            if jc:
                xi2 = self.x2
            if not jc:
                xf2 = self.x2
                dt2 = round(((xf2 - xi2)/float(self.numpeaksNewer.value())), 3)
                df2 = round((1/dt2), 3)
                self.rheed2cal = str(str(dt2)+' s or '+str(df2)+' Hz')
            jc = not jc                
        if self.plot3.underMouse():
            if kc:
                xi3 = self.x3
            if not kc:
                xf3 = self.x3
                dt3 = round(((xf3 - xi3)/float(self.numpeaksOlder.value())), 3)
                df3 = round((1/dt3), 3)
                self.rheed3cal = str(str(dt3)+' s or '+str(df3)+' Hz')
            kc = not kc 

def mouseReleaseEvent(self, event: QtGui.QMouseEvent):
        global x1, y1, x2, y2, a1, b1, a2, b2, c1, d1, c2, d2, red, blue, green
        if self.drawCanvas.underMouse() and event.button == QtCore.Qt.LeftButton:
            if red:
                x2, y2 = event.pos().x()-10, event.pos().y()-70
            if green:
                a2, b2 = event.pos().x()-10, event.pos().y()-70
            if blue:
                c2, d2 = event.pos().x()-10, event.pos().y()-70
                
    #### Change which rectangle color you're editing #### 

def mousePressEvent(self, event: QtGui.QMouseEvent):
        global x1, y1, x2, y2, a1, b1, a2, b2, c1, d1, c2, d2, red, blue, yellow
        if self.drawCanvas.underMouse():
            if red:
                x1, y1 = event.pos().x()-10, event.pos().y()-70
            if green:
                a1, b1 = event.pos().x()-10, event.pos().y()-70
            if blue:
                c1, d1 = event.pos().x()-10, event.pos().y()-70
                
    #### Record position of mouse when you release the button ####