buttons.py 31 KB
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from PyQt5.QtCore import Qt, QCoreApplication, QLineF, QPointF, QRectF, QSize, QTimer, pyqtSignal, QT_TRANSLATE_NOOP
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from PyQt5.QtGui import QBrush, QColor, QLinearGradient, QIcon, QPainter, QPainterPath, QPalette, QPen, QPixmap, QPolygonF
from PyQt5.QtWidgets import QAction, QCommonStyle, QMenu, QPushButton, QStyle, QStyleOptionToolButton, QStylePainter, QToolButton
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from blink.resources import Resources
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from blink.widgets.color import ColorScheme, ColorUtils, ColorHelperMixin
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__all__ = ['ToolButton', 'ConferenceButton', 'StreamButton', 'SegmentButton', 'SingleSegment', 'LeftSegment', 'MiddleSegment', 'RightSegment',
           'RecordButton', 'SwitchViewButton', 'StateButton', 'AccountState']

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translate = QCoreApplication.translate

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class ToolButton(QToolButton):
    """A custom QToolButton that doesn't show a menu indicator arrow"""
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    def paintEvent(self, event):
        painter = QStylePainter(self)
        option = QStyleOptionToolButton()
        self.initStyleOption(option)
        option.features &= ~QStyleOptionToolButton.HasMenu
        painter.drawComplexControl(QStyle.CC_ToolButton, option)


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class ConferenceButton(ToolButton):
    makeConference  = pyqtSignal()
    breakConference = pyqtSignal()

    def __init__(self, parent=None):
        super(ConferenceButton, self).__init__(parent)
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        self.make_conference_action = QAction(translate('conference_button', 'Conference all single sessions'), self, triggered=self.makeConference.emit)
        self.break_conference_action = QAction(translate('conference_button', 'Break selected conference'), self, triggered=self.breakConference.emit)
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        self.toggled.connect(self._SH_Toggled)
        self.addAction(self.make_conference_action)

    def _SH_Toggled(self, checked):
        if checked:
            self.removeAction(self.make_conference_action)
            self.addAction(self.break_conference_action)
        else:
            self.removeAction(self.break_conference_action)
            self.addAction(self.make_conference_action)


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class StreamButton(QToolButton):
    hidden = pyqtSignal()
    shown  = pyqtSignal()

    def __init__(self, parent=None):
        super(StreamButton, self).__init__(parent)
        self.default_icon = QIcon()
        self.alternate_icon = QIcon()
        self.clicked.connect(self._clicked)

    def _clicked(self):
        super(StreamButton, self).setIcon(self.default_icon)

    def _get_accepted(self):
        return not self.isChecked()

    def _set_accepted(self, accepted):
        super(StreamButton, self).setIcon(self.alternate_icon)
        self.setChecked(not accepted)

    accepted = property(_get_accepted, _set_accepted)
    del _get_accepted, _set_accepted

    def _get_active(self):
        return self.isEnabled()

    def _set_active(self, active):
        self.setEnabled(bool(active))

    active = property(_get_active, _set_active)
    del _get_active, _set_active

    @property
    def in_use(self):
        return self.isVisibleTo(self.parent())

    def setVisible(self, visible):
        super(StreamButton, self).setVisible(visible)
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        signal = self.shown if visible else self.hidden
        signal.emit()
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    def setIcon(self, icon):
        self.default_icon = icon
        self.alternate_icon = QIcon(icon)
        normal_sizes = icon.availableSizes(QIcon.Normal, QIcon.On)
        selected_sizes = icon.availableSizes(QIcon.Selected, QIcon.On)
        selected_additional_sizes = [size for size in selected_sizes if size not in normal_sizes]
        for size in normal_sizes + selected_additional_sizes:
            pixmap = icon.pixmap(size, QIcon.Selected, QIcon.On)
            self.alternate_icon.addPixmap(pixmap, QIcon.Normal, QIcon.On)
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        disabled_sizes = icon.availableSizes(QIcon.Disabled, QIcon.On)
        selected_additional_sizes = [size for size in selected_sizes if size not in disabled_sizes]
        for size in disabled_sizes + selected_additional_sizes:
            pixmap = icon.pixmap(size, QIcon.Selected, QIcon.On)
            self.alternate_icon.addPixmap(pixmap, QIcon.Disabled, QIcon.On)
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        super(StreamButton, self).setIcon(icon)


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class SegmentTypeMeta(type):
    def __repr__(cls):
        return cls.__name__

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class SegmentType(object, metaclass=SegmentTypeMeta):
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    style_sheet = ''

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class SingleSegment(SegmentType):
    style_sheet = """
                     QToolButton {
                         background: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #fafafa, stop:1 #bababa);
                         border-color: #545454;
                         border-radius: 4px;
                         border-width: 1px;
                         border-style: solid;
                     }
                     
                     QToolButton:pressed {
                         background: qradialgradient(cx:0.5, cy:0.5, radius:1, fx:0.5, fy:0.5, stop:0 #dddddd, stop:1 #777777);
                     }
                  """

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class LeftSegment(SegmentType):
    style_sheet = """
                     QToolButton {
                         background: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #fafafa, stop:1 #bababa);
                         border-color: #545454;
                         border-top-left-radius: 4px;
                         border-bottom-left-radius: 4px;
                         border-width: 1px;
                         border-style: solid;
                     }
                     
                     QToolButton:pressed {
                         background: qradialgradient(cx:0.5, cy:0.5, radius:1, fx:0.5, fy:0.5, stop:0 #dddddd, stop:1 #777777);
                     }
                  """

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class MiddleSegment(SegmentType):
    style_sheet = """
                     QToolButton {
                         background: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #fafafa, stop:1 #bababa);
                         border-color: #545454;
                         border-width: 1px;
                         border-left-width: 0px;
                         border-style: solid;
                     }
                     
                     QToolButton:pressed {
                         background: qradialgradient(cx:0.5, cy:0.5, radius:1, fx:0.5, fy:0.5, stop:0 #dddddd, stop:1 #777777);
                     }
                  """

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class RightSegment(SegmentType):
    style_sheet = """
                     QToolButton {
                         background: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #fafafa, stop:1 #bababa);
                         border-color: #545454;
                         border-top-right-radius: 4px;
                         border-bottom-right-radius: 4px;
                         border-width: 1px;
                         border-left-width: 0px;
                         border-style: solid;
                     }
                     
                     QToolButton:pressed {
                         background: qradialgradient(cx:0.5, cy:0.5, radius:1, fx:0.5, fy:0.5, stop:0 #dddddd, stop:1 #777777);
                     }
                  """


class SegmentButton(QToolButton):
    SingleSegment = SingleSegment
    LeftSegment   = LeftSegment
    MiddleSegment = MiddleSegment
    RightSegment  = RightSegment

    hidden = pyqtSignal()
    shown  = pyqtSignal()

    def __init__(self, parent=None):
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        super(SegmentButton, self).__init__(parent)
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        self.type = SingleSegment

    def _get_type(self):
        return self.__dict__['type']

    def _set_type(self, value):
        if not issubclass(value, SegmentType):
            raise ValueError("Invalid type: %r" % value)
        self.__dict__['type'] = value
        self.setStyleSheet(value.style_sheet)

    type = property(_get_type, _set_type)
    del _get_type, _set_type

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    def setVisible(self, visible):
        super(SegmentButton, self).setVisible(visible)
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        signal = self.shown if visible else self.hidden
        signal.emit()
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class RecordButton(SegmentButton):
    def __init__(self, parent=None):
        super(RecordButton, self).__init__(parent)
        self.timer_id = None
        self.toggled.connect(self._SH_Toggled)
        self.animation_icons = []
        self.animation_icon_index = 0

    def _get_animation_icon_index(self):
        return self.__dict__['animation_icon_index']

    def _set_animation_icon_index(self, index):
        self.__dict__['animation_icon_index'] = index
        self.update()

    animation_icon_index = property(_get_animation_icon_index, _set_animation_icon_index)
    del _get_animation_icon_index, _set_animation_icon_index

    def setIcon(self, icon):
        super(RecordButton, self).setIcon(icon)
        on_icon = QIcon(icon)
        off_icon = QIcon(icon)
        for size in off_icon.availableSizes(QIcon.Normal, QIcon.On):
            pixmap = off_icon.pixmap(size, QIcon.Normal, QIcon.Off)
            off_icon.addPixmap(pixmap, QIcon.Normal, QIcon.On)
        self.animation_icons = [on_icon, off_icon]

    def paintEvent(self, event):
        painter = QStylePainter(self)
        option = QStyleOptionToolButton()
        self.initStyleOption(option)
        option.icon = self.animation_icons[self.animation_icon_index]
        painter.drawComplexControl(QStyle.CC_ToolButton, option)

    def timerEvent(self, event):
        self.animation_icon_index = (self.animation_icon_index+1) % len(self.animation_icons)

    def _SH_Toggled(self, checked):
        if checked:
            self.timer_id = self.startTimer(1000)
            self.animation_icon_index = 0
        else:
            self.killTimer(self.timer_id)
            self.timer_id = None


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class SwitchViewButton(QPushButton):
    ContactView = 0
    SessionView = 1

    viewChanged = pyqtSignal(int)

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    button_text = {ContactView: QT_TRANSLATE_NOOP('switch_view_button', 'Switch to Calls'), SessionView: QT_TRANSLATE_NOOP('switch_view_button', 'Switch to Contacts')}
    button_dnd_text = {ContactView: QT_TRANSLATE_NOOP('switch_view_button', 'Drag here to add to a conference'), SessionView: QT_TRANSLATE_NOOP('switch_view_button', 'Drag here to go back to contacts')}
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    dnd_style_sheet1 = """
                          QPushButton {
                              background: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #ffffff, stop:1 #d3ffdc);
                              border-color: #237523;
                              border-radius: 4px;
                              border-width: 2px;
                              border-style: solid;
                          }
                       """

    dnd_style_sheet2 = """
                          QPushButton {
                              background: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #ffffff, stop:1 #c2ffce);
                              border-color: #dc3169;
                              border-radius: 4px;
                              border-width: 2px;
                              border-style: solid;
                          }
                       """

    def __init__(self, parent=None):
        super(SwitchViewButton, self).__init__(parent)
        self.setAcceptDrops(True)
        self.__dict__['dnd_active'] = False
        self.view = self.ContactView
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        self.original_height = 20  # used to restore button size after DND
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        self.dnd_timer = QTimer(self)
        self.dnd_timer.setInterval(100)
        self.dnd_timer.timeout.connect(self._update_dnd)
        self.dnd_timer.phase = 0
        self.clicked.connect(self._change_view)

    def _get_view(self):
        return self.__dict__['view']

    def _set_view(self, value):
        if self.__dict__.get('view', None) == value:
            return
        if value not in (self.ContactView, self.SessionView):
            raise ValueError("invalid view value: %r" % value)
        self.__dict__['view'] = value
        if self.dnd_active:
            text = self.button_dnd_text[value]
        else:
            text = self.button_text[value]
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        self.setText(translate('switch_view_button', text))
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        self.viewChanged.emit(value)

    view = property(_get_view, _set_view)
    del _get_view, _set_view

    def _get_dnd_active(self):
        return self.__dict__['dnd_active']

    def _set_dnd_active(self, value):
        if self.__dict__.get('dnd_active', None) == value:
            return
        self.__dict__['dnd_active'] = value
        if value is True:
            self.dnd_timer.phase = 0
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            self.original_height = self.height()
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            self.setStyleSheet(self.dnd_style_sheet1)
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            self.setText(translate('switch_view_button', self.button_dnd_text[self.view]))
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            self.setFixedHeight(40)
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        else:
            self.setStyleSheet('')
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            self.setText(translate('switch_view_button', self.button_text[self.view]))
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            self.setFixedHeight(self.original_height)
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    dnd_active = property(_get_dnd_active, _set_dnd_active)
    del _get_dnd_active, _set_dnd_active

    def _change_view(self):
        self.view = self.ContactView if self.view is self.SessionView else self.SessionView

    def _update_dnd(self):
        self.dnd_timer.phase += 1
        if self.dnd_timer.phase == 11:
            self.dnd_timer.stop()
            self.click()
            self.setStyleSheet(self.dnd_style_sheet1)
        else:
            style_sheet = (self.dnd_style_sheet1, self.dnd_style_sheet2)[self.dnd_timer.phase % 2]
            self.setStyleSheet(style_sheet)

    def dragEnterEvent(self, event):
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        if self.dnd_active:
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            event.accept()
            self._update_dnd()
            self.dnd_timer.start()
        else:
            event.ignore()

    def dragLeaveEvent(self, event):
        if self.dnd_active:
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            self.dnd_timer.stop()
            self.dnd_timer.phase = 0
            self.setStyleSheet(self.dnd_style_sheet1)
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        super(SwitchViewButton, self).dragLeaveEvent(event)

    def dropEvent(self, event):
        if self.dnd_active:
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            self.dnd_timer.stop()
            self.dnd_timer.phase = 0
            self.setStyleSheet(self.dnd_style_sheet1)
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        event.ignore()


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class StateButtonStyle(QCommonStyle, ColorHelperMixin):
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    _pixel_metrics = {QStyle.PM_MenuButtonIndicator: 11, QStyle.PM_DefaultFrameWidth: 3, QStyle.PM_ButtonMargin: 1, QStyle.PM_ButtonShiftHorizontal: 0, QStyle.PM_ButtonShiftVertical: 0,
                      QStyle.PM_ButtonIconSize: 32}

    def polish(self, widget):
        widget.setAttribute(Qt.WA_Hover)
        super(StateButtonStyle, self).polish(widget)

    def pixelMetric(self, metric, option=None, widget=None):
        return self._pixel_metrics[metric]

    def sizeFromContents(self, element, option, size, widget=None):
        if element == QStyle.CT_ToolButton:
            return self.toolButtonSizeFromContents(option, size, widget)
        else:
            return super(StateButtonStyle, self).sizeFromContents(element, option, size, widget)

    def toolButtonSizeFromContents(self, option, size, widget):
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        # Make width >= height to avoid super-skinny buttons
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        margin = 2 * (self._pixel_metrics[QStyle.PM_DefaultFrameWidth] + self._pixel_metrics[QStyle.PM_ButtonMargin])
        if option.features & QStyleOptionToolButton.MenuButtonPopup:
            margin_size = QSize(margin+1, margin)
            menu_width = self._pixel_metrics[QStyle.PM_MenuButtonIndicator]
        else:
            margin_size = QSize(margin, margin)
            menu_width = 0
        if size.width() - menu_width < size.height():
            size.setWidth(size.height() + menu_width)
        return size + margin_size

    def drawComplexControl(self, control, option, painter, widget=None):
        if control == QStyle.CC_ToolButton:
            painter.save()
            self.drawToolButtonComplexControl(option, painter, widget)
            painter.restore()
        else:
            super(StateButtonStyle, self).drawComplexControl(control, option, painter, widget)

    def drawToolButtonComplexControl(self, option, painter, widget):
        button_color = option.palette.color(QPalette.Button)

        if option.state & (QStyle.State_On|QStyle.State_Sunken):
            self.drawToolButtonSunkenBezel(painter, QRectF(option.rect).adjusted(1, 1, -1, -1), button_color)
        else:
            enabled = bool(option.state & QStyle.State_Enabled)
            hoover = enabled and bool(option.state & QStyle.State_MouseOver)
            has_focus = enabled and bool(option.state & QStyle.State_HasFocus)
            self.drawToolButtonBezel(painter, QRectF(option.rect), button_color, hoover=hoover, has_focus=has_focus)
        if option.features & QStyleOptionToolButton.MenuButtonPopup:
            self.drawToolButtonMenuIndicator(option, painter, widget)
        self.drawToolButtonContent(option, painter, widget)

    def drawToolButtonBezel(self, painter, rect, color, hoover=False, has_focus=False):
        painter.setRenderHint(QPainter.Antialiasing, True)
        painter.setPen(Qt.NoPen)

        glow_rect = rect
        shadow_rect  = rect.adjusted(1, 1, -1, -1)
        border_rect  = rect.adjusted(2, 2, -2, -2)
        content_rect = rect.adjusted(3, 3, -3, -3)

        focus_color = QColor('#3aa7dd')
        hoover_color = QColor('#6ed6ff')
        shadow_color = ColorScheme.shade(self.background_bottom_color(color), ColorScheme.ShadowShade, 0.0)
        border_color_top = ColorScheme.shade(self.background_top_color(color), ColorScheme.LightShade, 0.0)
        border_color_bottom = ColorScheme.shade(self.background_bottom_color(color), ColorScheme.MidlightShade, 0.5)

        # glow
        painter.setCompositionMode(QPainter.CompositionMode_SourceOver)
        blend = QLinearGradient(glow_rect.topLeft(), glow_rect.bottomLeft())
        if hoover:
            blend.setColorAt(0.0, self.color_with_alpha(hoover_color, 0x45))
            blend.setColorAt(0.9, self.color_with_alpha(hoover_color, 0x45))
            blend.setColorAt(1.0, self.color_with_alpha(ColorUtils.mix(hoover_color, shadow_color, 0.4), 0x55))
        elif has_focus:
            blend.setColorAt(0.0, self.color_with_alpha(focus_color, 0x45))
            blend.setColorAt(0.9, self.color_with_alpha(focus_color, 0x45))
            blend.setColorAt(1.0, self.color_with_alpha(ColorUtils.mix(focus_color, shadow_color, 0.4), 0x55))
        else:
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            blend.setColorAt(0.0, Qt.transparent)  # or @0.5
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            blend.setColorAt(0.9, self.color_with_alpha(shadow_color, 0x10))
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            # blend.setColorAt(1-4.0/glow_rect.height(), self.color_with_alpha(shadow_color, 0x10))  # this is for exactly 4 pixels from bottom
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            blend.setColorAt(1.0, self.color_with_alpha(shadow_color, 0x30)) # 0x25, 0x30 or 0x35
        painter.setBrush(blend)
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        painter.drawRoundedRect(glow_rect, 5, 5)  # 5 or 6
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        # shadow
        painter.setCompositionMode(QPainter.CompositionMode_SourceOver)
        if hoover:
            painter.setBrush(hoover_color)
        elif has_focus:
            painter.setBrush(focus_color)
        else:
            blend = QLinearGradient(shadow_rect.topLeft(), shadow_rect.bottomLeft())
            blend.setColorAt(0.00, self.color_with_alpha(shadow_color, 0x10))
            blend.setColorAt(1.00, self.color_with_alpha(shadow_color, 0x80))
            painter.setBrush(blend)
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        painter.drawRoundedRect(shadow_rect, 4, 4)  # 4 or 5
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        # border
        painter.setCompositionMode(QPainter.CompositionMode_Source)
        blend = QLinearGradient(border_rect.topLeft(), border_rect.bottomLeft())
        blend.setColorAt(0.0, border_color_top)
        blend.setColorAt(1.0, border_color_bottom)
        painter.setBrush(blend)
        painter.drawRoundedRect(border_rect, 4, 4)

        # content
        painter.setCompositionMode(QPainter.CompositionMode_Source)
        grad = QLinearGradient(content_rect.topLeft(), content_rect.bottomLeft())
        grad.setColorAt(0.0, self.background_top_color(color))
        grad.setColorAt(1.0, self.background_bottom_color(color))
        painter.setBrush(QBrush(grad))
        painter.drawRoundedRect(content_rect, 4, 4)

    def drawToolButtonSunkenBezel(self, painter, rect, color):
        painter.setRenderHint(QPainter.Antialiasing, True)
        painter.setPen(Qt.NoPen)

        hole_rect    = rect.adjusted(1, 1, -1, -1)
        shadow_rect  = rect.adjusted(2, 2, -2, -2)
        content_rect = rect.adjusted(3, 3, -3, -3)

        shade_color  = ColorScheme.shade(self.background_bottom_color(color), ColorScheme.MidlightShade, 0.5)
        shadow_color = ColorScheme.shade(self.background_bottom_color(color), ColorScheme.ShadowShade, 0.0)

        if self.calc_shadow_color(color).value() > color.value():
            content_grad = QLinearGradient(0, content_rect.top(), 0, content_rect.bottom()+content_rect.height()*0.2)
            content_grad.setColorAt(0.0, self.background_bottom_color(color))
            content_grad.setColorAt(1.0, self.background_top_color(color))
        else:
            content_grad = QLinearGradient(0, content_rect.top()-content_rect.height()*0.2, 0, content_rect.bottom())
            content_grad.setColorAt(0.0, self.background_top_color(color))
            content_grad.setColorAt(1.0, self.background_bottom_color(color))

        # hole edge
        painter.setCompositionMode(QPainter.CompositionMode_SourceOver)
        blend = QLinearGradient(hole_rect.topLeft(), hole_rect.bottomLeft())
        blend.setColorAt(0.0, self.color_with_alpha(shadow_color, 0x80))
        blend.setColorAt(1.0, self.color_with_alpha(shadow_color, 0x20))
        painter.setBrush(blend)
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        painter.drawRoundedRect(hole_rect, 4, 4)  # 4 or 5
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        # shadow
        painter.setCompositionMode(QPainter.CompositionMode_Source)
        painter.setBrush(content_grad)
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        painter.drawRoundedRect(shadow_rect, 4, 4)  # 5 or 6
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        painter.setCompositionMode(QPainter.CompositionMode_SourceOver)
        blend = QLinearGradient(shadow_rect.topLeft(), shadow_rect.bottomLeft())
        blend.setColorAt(0.0, self.color_with_alpha(shadow_color, 0x40))
        blend.setColorAt(0.1, self.color_with_alpha(shadow_color, 0x07))
        blend.setColorAt(0.9, self.color_with_alpha(shadow_color, 0x07))
        blend.setColorAt(1.0, shade_color)
        painter.setBrush(blend)
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        painter.drawRoundedRect(shadow_rect, 4, 4)  # 5 or 6
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        # content
        painter.setCompositionMode(QPainter.CompositionMode_Source)
        painter.setBrush(content_grad)
        painter.drawRoundedRect(content_rect, 4, 4)

    def drawToolButtonMenuIndicator(self, option, painter, widget=None):
        arrow_rect = self.proxy().subControlRect(QStyle.CC_ToolButton, option, QStyle.SC_ToolButtonMenu, widget)

        text_color = option.palette.color(QPalette.WindowText if option.state & QStyle.State_AutoRaise else QPalette.ButtonText)
        button_color = option.palette.color(QPalette.Button)
        background_color = self.background_color(button_color, 0.5)

        painter.save()

        # draw separating vertical line
        if option.state & (QStyle.State_On|QStyle.State_Sunken):
            top_offset, bottom_offset = 4, 3
        else:
            top_offset, bottom_offset = 2, 2

        if option.direction == Qt.LeftToRight:
            separator_line = QLineF(arrow_rect.x()-3, arrow_rect.top()+top_offset, arrow_rect.x()-3, arrow_rect.bottom()-bottom_offset)
        else:
            separator_line = QLineF(arrow_rect.right()+3, arrow_rect.top()+top_offset, arrow_rect.right()+3, arrow_rect.bottom()-bottom_offset)

        light_gradient = QLinearGradient(separator_line.p1(), separator_line.p2())
        light_gradient.setColorAt(0.0, ColorScheme.shade(self.background_top_color(button_color), ColorScheme.LightShade, 0.0))
        light_gradient.setColorAt(1.0, ColorScheme.shade(self.background_bottom_color(button_color), ColorScheme.MidlightShade, 0.5))
        separator_color = ColorScheme.shade(self.background_bottom_color(button_color), ColorScheme.MidShade, 0.0)

        painter.setRenderHint(QPainter.Antialiasing, False)
        painter.setPen(QPen(light_gradient, 1))
        painter.drawLine(separator_line.translated(-1, 0))
        painter.drawLine(separator_line.translated(+1, 0))
        painter.setPen(QPen(separator_color, 1))
        painter.drawLine(separator_line)

        # draw arrow
        arrow = QPolygonF([QPointF(-3, -1.5), QPointF(0.5, 2.5), QPointF(4, -1.5)])
        if option.direction == Qt.LeftToRight:
            arrow.translate(-2, 1)
        else:
            arrow.translate(+2, 1)
        pen_thickness = 1.6

        painter.setRenderHint(QPainter.Antialiasing, True)
        painter.translate(arrow_rect.center())

        painter.translate(0, +1)
        painter.setPen(QPen(self.calc_light_color(background_color), pen_thickness, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))
        painter.drawPolyline(arrow)
        painter.translate(0, -1)
        painter.setPen(QPen(self.deco_color(background_color, text_color), pen_thickness, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))
        painter.drawPolyline(arrow)

        painter.restore()

    def drawToolButtonContent(self, option, painter, widget):
        if option.state & QStyle.State_Enabled:
            pixmap = widget.pixmap(QIcon.Normal)
        else:
            pixmap = widget.pixmap(QIcon.Disabled)
        if not pixmap.isNull():
            margin = self._pixel_metrics[QStyle.PM_DefaultFrameWidth] + self._pixel_metrics[QStyle.PM_ButtonMargin]
            if option.features & QStyleOptionToolButton.MenuButtonPopup and option.direction == Qt.LeftToRight:
                right_offset = 1
            else:
                right_offset = 0
            content_rect = QRectF(self.proxy().subControlRect(QStyle.CC_ToolButton, option, QStyle.SC_ToolButton, widget)).adjusted(margin, margin, -margin-right_offset, -margin)
            pixmap_rect  = QRectF(pixmap.rect())
            pixmap_rect.moveCenter(content_rect.center())
            painter.setRenderHint(QPainter.Antialiasing, True)
            painter.setCompositionMode(QPainter.CompositionMode_SourceOver)
            painter.drawPixmap(pixmap_rect.topLeft(), pixmap)


class StateButton(QToolButton):
    default_color = QColor('#efedeb')

    def __init__(self, parent=None):
        super(StateButton, self).__init__(parent)
        self.setPopupMode(QToolButton.MenuButtonPopup)
        self.setToolButtonStyle(Qt.ToolButtonIconOnly)
        palette = self.palette()
        palette.setColor(QPalette.Button, self.default_color)
        self.setPalette(palette)
        self.setStyle(StateButtonStyle())

    def pixmap(self, mode=QIcon.Normal, state=QIcon.Off):
        pixmap = self.icon().pixmap(self.iconSize(), mode, state)
        if pixmap.isNull():
            return pixmap

        size = max(pixmap.width(), pixmap.height())
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        offset_x = int((size - pixmap.width())/2)
        offset_y = int((size - pixmap.height())/2)
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        new_pixmap = QPixmap(size, size)
        new_pixmap.fill(Qt.transparent)
        path = QPainterPath()
        path.addRoundedRect(0, 0, size, size, 3.7, 3.7)
        painter = QPainter(new_pixmap)
        painter.setRenderHint(QPainter.Antialiasing, True)
        painter.setCompositionMode(QPainter.CompositionMode_SourceOver)
        painter.setClipPath(path)
        painter.drawPixmap(offset_x, offset_y, pixmap)
        painter.end()

        return new_pixmap


class PresenceState(object):
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    def __init__(self, name, color, icon, internal=False):
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        self.name = name
        self.color = color
        self.icon = icon
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        self.internal = internal

    def __eq__(self, other):
        if isinstance(other, PresenceState):
            return self.name == other.name
        return NotImplemented

    def __ne__(self, other):
        equal = self.__eq__(other)
        return NotImplemented if equal is NotImplemented else not equal
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    def __repr__(self):
        return self.name

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    @property
    def Internal(self):
        return PresenceState(self.name, self.color, self.icon, True)

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class AccountState(StateButton):
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    Invisible = PresenceState(QT_TRANSLATE_NOOP('presence_state', 'Invisible'), '#efedeb', Resources.get('icons/state-invisible.svg'))
    Available = PresenceState(QT_TRANSLATE_NOOP('presence_state', 'Available'), '#00ff00', Resources.get('icons/state-available.svg'))
    Away = PresenceState(QT_TRANSLATE_NOOP('presence_state', 'Away'), '#ffff00', Resources.get('icons/state-away.svg'))
    Busy = PresenceState(QT_TRANSLATE_NOOP('presence_state', 'Busy'), '#ff0000', Resources.get('icons/state-busy.svg'))
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    stateChanged = pyqtSignal()
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    history_size = 7

    def __init__(self, parent=None):
        super(AccountState, self).__init__(parent)
        menu = QMenu(self)
        for state in (self.Available, self.Away, self.Busy, self.Invisible):
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            action = menu.addAction(QIcon(state.icon), translate('presence_state', state.name))
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            action.state = state
            action.note = None
        menu.addSeparator()
        menu.triggered.connect(self._SH_MenuTriggered)
        self.setMenu(menu)
        self.state = self.Invisible
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        self.note = None

    def _get_history(self):
        return [(action.state.name, action.note) for action in self.menu().actions()[5:]]
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    def _set_history(self, values):
        menu = self.menu()
        for action in menu.actions()[5:]:
            menu.removeAction(action)
        for state_name, note in values:
            try:
                state = getattr(self, state_name)
            except AttributeError:
                continue
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            action = menu.addAction(QIcon(state.icon), note)
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            action.state = state
            action.note = note
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    history = property(_get_history, _set_history)
    del _get_history, _set_history
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    def _SH_MenuTriggered(self, action):
        if hasattr(action, 'state'):
            self.setState(action.state, action.note)

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    def mousePressEvent_no(self, event):
        if event.button() == Qt.LeftButton and self.popupMode() == QToolButton.MenuButtonPopup:
            option = QStyleOptionToolButton()
            self.initStyleOption(option)
            position = self.style().subControlRect(QStyle.CC_ToolButton, option, QStyle.SC_ToolButtonMenu, self).center()
            event = event.__class__(event.type(), position, self.mapToGlobal(position), event.button(), event.buttons(), event.modifiers())
        return super(AccountState, self).mousePressEvent(event)

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    def setState(self, state, note=None):
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        if state == self.state and note == self.note:
            return
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        self.state = state
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        self.note = note
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        palette = self.palette()
        palette.setColor(QPalette.Button, QColor(state.color))
        self.setPalette(palette)
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        if note and not state.internal:
            menu = self.menu()
            actions = menu.actions()[5:]
            try:
                action = next(action for action in actions if action.state is state and action.note == note)
            except StopIteration:
                action = QAction(QIcon(state.icon), note, menu)
                if len(actions) == 0:
                    menu.addAction(action)
                else:
                    if len(actions) >= self.history_size:
                        menu.removeAction(actions[-1])
                    menu.insertAction(actions[0], action)
                action.state = state
                action.note = note
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            else:
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                if action is not actions[0]:
                    menu.removeAction(action)
                    menu.insertAction(actions[0], action)
        self.stateChanged.emit()
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