Python PyQt5.QtCore.QEvent.MouseButtonPress() Examples

def _click_fake_event(self, click_target: usertypes.ClickTarget,
                          button: Qt.MouseButton = Qt.LeftButton) -> None:
        """Send a fake click event to the element."""
        pos = self._mouse_pos()

        log.webelem.debug("Sending fake click to {!r} at position {} with "
                          "target {}".format(self, pos, click_target))

        target_modifiers = {
            usertypes.ClickTarget.normal: Qt.NoModifier,
            usertypes.ClickTarget.window: Qt.AltModifier | Qt.ShiftModifier,
            usertypes.ClickTarget.tab: Qt.ControlModifier,
            usertypes.ClickTarget.tab_bg: Qt.ControlModifier,
        }
        if config.val.tabs.background:
            target_modifiers[usertypes.ClickTarget.tab] |= Qt.ShiftModifier
        else:
            target_modifiers[usertypes.ClickTarget.tab_bg] |= Qt.ShiftModifier

        modifiers = typing.cast(Qt.KeyboardModifiers,
                                target_modifiers[click_target])

        events = [
            QMouseEvent(QEvent.MouseMove, pos, Qt.NoButton, Qt.NoButton,
                        Qt.NoModifier),
            QMouseEvent(QEvent.MouseButtonPress, pos, button, button,
                        modifiers),
            QMouseEvent(QEvent.MouseButtonRelease, pos, button, Qt.NoButton,
                        modifiers),
        ]

        for evt in events:
            self._tab.send_event(evt)

        QTimer.singleShot(0, self._move_text_cursor) 

def editorEvent(self, event, model, option, index):
        ''' 
        Handle mouse events in cell.
        On left button release in this cell, call model's setData() method,
            wherein the button clicked action should be handled.
        Currently, the value supplied to setData() is the button text, but this is arbitrary.
        '''
        if event.button() == Qt.LeftButton:
            if event.type() == QEvent.MouseButtonPress:
                if option.rect.contains(event.pos()):
                    self._isMousePressed = True
                    return True
            elif event.type() == QEvent.MouseButtonRelease:
                self._isMousePressed = False
                if option.rect.contains(event.pos()):
                    model.setData(index, self.text, Qt.EditRole)  # Model should handle button click action in its setData() method.
                    return True
        return False 

def handleEvent(self, event):
        if event.type() == QEvent.MouseButtonPress:
            ex, ey = self._normalizeCoordinates(event.windowPos().x(), event.windowPos().y())
            e = MouseEvent(MouseEvent.MousePressEvent, ex, ey, self._x, self._y, self._qtButtonsToButtonList(event.buttons()))
            self._x = ex
            self._y = ey
            self.event.emit(e)
        elif event.type() == QEvent.MouseMove:
            ex, ey = self._normalizeCoordinates(event.windowPos().x(), event.windowPos().y())
            e = MouseEvent(MouseEvent.MouseMoveEvent, ex, ey, self._x, self._y, self._qtButtonsToButtonList(event.buttons()))
            self._x = ex
            self._y = ey
            self.event.emit(e)
        elif event.type() == QEvent.MouseButtonRelease:
            ex, ey = self._normalizeCoordinates(event.windowPos().x(), event.windowPos().y())
            e = MouseEvent(MouseEvent.MouseReleaseEvent, ex, ey, self._x, self._y, self._qtButtonsToButtonList(event.button()))
            self._x = ex
            self._y = ey
            self.event.emit(e)
        elif event.type() == QEvent.Wheel:
            delta = event.angleDelta()
            e = WheelEvent(delta.x(), delta.y())
            self.event.emit(e) 

def __init__(self, tab, *, parent=None):
        super().__init__(parent)
        self._tab = tab
        self._handlers = {
            QEvent.MouseButtonPress: self._handle_mouse_press,
            QEvent.MouseButtonRelease: self._handle_mouse_release,
            QEvent.Wheel: self._handle_wheel,
            QEvent.KeyRelease: self._handle_key_release,
        }
        self._ignore_wheel_event = False
        self._check_insertmode_on_release = False 

def eventFilter(self, _obj: QObject, event: QEvent) -> bool:
        """Enter insert mode if the inspector is clicked."""
        if event.type() == QEvent.MouseButtonPress:
            modeman.enter(self._win_id, usertypes.KeyMode.insert,
                          reason='Inspector clicked', only_if_normal=True)
        return False 

def test_widget_notes_mark_event(qtbot):

    w = Wonambi()
    qtbot.addWidget(w)

    w.info.open_dataset(str(gui_file))
    channel_make_group(w)
    w.channels.button_apply.click()
    w.channels.new_group(test_name='eog')
    w.notes.update_notes(annot_psg_path)
    w.traces.Y_wider()
    w.traces.Y_wider()
    w.traces.action['cross_chan_mrk'].setChecked(True)
    w.traces.go_to_epoch(test_text_str='23:34:45')

    w.notes.new_eventtype(test_type_str='spindle')
    w.notes.action['new_event'].setChecked(True)
    w.notes.add_event('spindle', (24293.01, 24294.65), 'EEG Pz-Oz (scalp)')

    screenshot(w, 'notes_14_mark_event.png')

    w.notes.add_event('spindle', (24288.01, 24288.90), 'EEG Fpz-Cz (scalp)')
    w.notes.add_event('spindle', (24297.5, 24298.00), 'EEG Fpz-Cz (scalp)')

    screenshot(w, 'notes_20_mark_short_event.png')

    pos = w.traces.mapFromScene(QPointF(24294, 75))
    mouseclick = QMouseEvent(QEvent.MouseButtonPress, pos,
                             Qt.LeftButton, Qt.NoButton, Qt.NoModifier)
    w.traces.mousePressEvent(mouseclick)

    screenshot(w, 'notes_15_highlight_event.png')

    w.notes.delete_eventtype(test_type_str='spindle')

    w.close() 

def eventFilter(self, obj, event):
# the next prevents correct setSelection on Windows
#        if event.type() == QEvent.FocusIn:
#            self.setSelection(self.currentIndex())
        if event.type() == QEvent.MouseButtonPress:
            self.updateMenu()
#            return True # stops processing # popup not drawn if this line is added
#        return super(RoastsComboBox, self).eventFilter(obj, event) # this seems to slow down things on Windows and not necessary anyhow
        return False # cont processing

    # the first entry is always just the current text edit line 

def mousePressEvent(self, event):
        """
        Select misspelled word after right click
        otherwise left clik + right click is needed.

        Originally from John Schember spellchecker
        """
        if event.button() == Qt.RightButton:
            # Rewrite the mouse event to a left button event so the cursor is
            # moved to the location of the pointer.
            event = QMouseEvent(QEvent.MouseButtonPress, event.pos(),
                Qt.LeftButton, Qt.LeftButton, Qt.NoModifier)
        QTextEdit.mousePressEvent(self, event) 

def event(self, event):
        if not self.initialized:
            return super(BlipDriver, self).event(event)

        self.makeCurrent()
        if event.type() in [QEvent.MouseMove, QEvent.MouseButtonPress, QEvent.MouseButtonRelease]:
            px = 2.0 * (event.x()) / self.width - 1.0
            py = 10.0 * (self.height - event.y()) / self.height - 1.0

        if event.type() == QEvent.MouseButtonPress and event.button() & Qt.LeftButton:
            self.btn_pressed, _ = check_knob(px, py)
            if self.btn_pressed is not None:
                self.drag_start = event.x(), event.y()
                QTimer.singleShot(100, self.updateAPValues)

        elif event.type() == QEvent.MouseButtonRelease and event.button() & Qt.LeftButton:
            # print px, py
            self.btn_pressed = None
            col_triangles = 6 * [255, 255, 255, 180]
            update_buffer(self.updown.colorbuf, np.array(col_triangles, dtype=np.uint8))
            # MCP button clicked?
            name, idx = check_btn(px, py)
            if name is not None:
                self.btn_state[idx] = not self.btn_state[idx]

            btn_color = []
            for b in self.btn_state:
                btn_color += 24 * [255] if b else 24 * [0]
            update_buffer(self.btn_leds.colorbuf, np.array(btn_color, dtype=np.uint8))
        elif event.type() == QEvent.MouseMove:
            if event.buttons() & Qt.LeftButton and self.btn_pressed is not None:
                self.rate = float(self.drag_start[1] - event.y()) / self.height
                if self.rate > 1e-2:
                    col_triangles = 3 * [255, 140, 0, 255] + 3 * [255, 255, 255, 180]
                elif self.rate < 1e-2:
                    col_triangles = 3 * [255, 255, 255, 180] + 3 * [255, 140, 0, 255]
                else:
                    col_triangles = 6 * [255, 255, 255, 180]
                update_buffer(self.updown.colorbuf, np.array(col_triangles, dtype=np.uint8))
                return True
            # Mouse-over for knobs
            name, self.updownpos = check_knob(px, py)

            # ismcp = float(self.height - event.y()) / self.height <= 0.2

        return super(BlipDriver, self).event(event)