def show_error(self):
     # 窗体抖动效果
     animation = QPropertyAnimation(self)
     animation.setTargetObject(self)
     animation.setPropertyName(b'pos')
     animation.setKeyValueAt(0, self.pos())
     animation.setKeyValueAt(0.2, self.pos() + QPoint(15, 0))
     animation.setKeyValueAt(0.5, self.pos())
     animation.setKeyValueAt(0.7, self.pos() + QPoint(-15, 0))
     animation.setKeyValueAt(1, self.pos())
     animation.setDuration(100)
     animation.setLoopCount(3)
     animation.start(QAbstractAnimation.DeleteWhenStopped)
示例#2
0
class CoverDelegate(QStyledItemDelegate):

    MARGIN = 4
    TOP, LEFT, RIGHT, BOTTOM = object(), object(), object(), object()

    @pyqtProperty(float)
    def animated_size(self):
        return self._animated_size

    @animated_size.setter
    def animated_size(self, val):
        self._animated_size = val

    def __init__(self, parent):
        super(CoverDelegate, self).__init__(parent)
        self._animated_size = 1.0
        self.animation = QPropertyAnimation(self, b'animated_size', self)
        self.animation.setEasingCurve(QEasingCurve.OutInCirc)
        self.animation.setDuration(500)
        self.set_dimensions()
        self.cover_cache = CoverCache()
        self.render_queue = LifoQueue()
        self.animating = None
        self.highlight_color = QColor(Qt.white)
        self.rating_font = QFont(rating_font())

    def set_dimensions(self):
        width = self.original_width = gprefs['cover_grid_width']
        height = self.original_height = gprefs['cover_grid_height']
        self.original_show_title = show_title = gprefs['cover_grid_show_title']
        self.original_show_emblems = gprefs['show_emblems']
        self.orginal_emblem_size = gprefs['emblem_size']
        self.orginal_emblem_position = gprefs['emblem_position']
        self.emblem_size = gprefs['emblem_size'] if self.original_show_emblems else 0
        try:
            self.gutter_position = getattr(self, self.orginal_emblem_position.upper())
        except Exception:
            self.gutter_position = self.TOP

        if height < 0.1:
            height = auto_height(self.parent())
        else:
            height *= self.parent().logicalDpiY() * CM_TO_INCH

        if width < 0.1:
            width = 0.75 * height
        else:
            width *= self.parent().logicalDpiX() * CM_TO_INCH
        self.cover_size = QSize(width, height)
        self.title_height = 0
        if show_title:
            f = self.parent().font()
            sz = f.pixelSize()
            if sz < 5:
                sz = f.pointSize() * self.parent().logicalDpiY() / 72.0
            self.title_height = max(25, sz + 10)
        self.item_size = self.cover_size + QSize(2 * self.MARGIN, (2 * self.MARGIN) + self.title_height)
        if self.emblem_size > 0:
            extra = self.emblem_size + self.MARGIN
            self.item_size += QSize(extra, 0) if self.gutter_position in (self.LEFT, self.RIGHT) else QSize(0, extra)
        self.calculate_spacing()
        self.animation.setStartValue(1.0)
        self.animation.setKeyValueAt(0.5, 0.5)
        self.animation.setEndValue(1.0)

    def calculate_spacing(self):
        spc = self.original_spacing = gprefs['cover_grid_spacing']
        if spc < 0.01:
            self.spacing = max(10, min(50, int(0.1 * self.original_width)))
        else:
            self.spacing = self.parent().logicalDpiX() * CM_TO_INCH * spc

    def sizeHint(self, option, index):
        return self.item_size

    def render_field(self, db, book_id):
        is_stars = False
        try:
            field = db.pref('field_under_covers_in_grid', 'title')
            if field == 'size':
                ans = human_readable(db.field_for(field, book_id, default_value=0))
            else:
                mi = db.get_proxy_metadata(book_id)
                display_name, ans, val, fm = mi.format_field_extended(field)
                if fm and fm['datatype'] == 'rating':
                    ans = rating_to_stars(val, fm['display'].get('allow_half_stars', False))
                    is_stars = True
            return ('' if ans is None else unicode_type(ans)), is_stars
        except Exception:
            if DEBUG:
                import traceback
                traceback.print_exc()
        return '', is_stars

    def render_emblem(self, book_id, rule, rule_index, cache, mi, db, formatter, template_cache):
        ans = cache[book_id].get(rule, False)
        if ans is not False:
            return ans, mi
        ans = None
        if mi is None:
            mi = db.get_proxy_metadata(book_id)
        ans = formatter.safe_format(rule, mi, '', mi, column_name='cover_grid%d' % rule_index, template_cache=template_cache) or None
        cache[book_id][rule] = ans
        return ans, mi

    def cached_emblem(self, cache, name, raw_icon=None):
        ans = cache.get(name, False)
        if ans is not False:
            return ans
        sz = self.emblem_size
        ans = None
        if raw_icon is not None:
            ans = raw_icon.pixmap(sz, sz)
        elif name == ':ondevice':
            ans = QIcon(I('ok.png')).pixmap(sz, sz)
        elif name:
            pmap = QIcon(os.path.join(config_dir, 'cc_icons', name)).pixmap(sz, sz)
            if not pmap.isNull():
                ans = pmap
        cache[name] = ans
        return ans

    def paint(self, painter, option, index):
        QStyledItemDelegate.paint(self, painter, option, empty_index)  # draw the hover and selection highlights
        m = index.model()
        db = m.db
        try:
            book_id = db.id(index.row())
        except (ValueError, IndexError, KeyError):
            return
        if book_id in m.ids_to_highlight_set:
            painter.save()
            try:
                painter.setPen(self.highlight_color)
                painter.setRenderHint(QPainter.Antialiasing, True)
                painter.drawRoundedRect(option.rect, 10, 10, Qt.RelativeSize)
            finally:
                painter.restore()
        marked = db.data.get_marked(book_id)
        db = db.new_api
        cdata = self.cover_cache[book_id]
        device_connected = self.parent().gui.device_connected is not None
        on_device = device_connected and db.field_for('ondevice', book_id)

        emblem_rules = db.pref('cover_grid_icon_rules', default=())
        emblems = []
        if self.emblem_size > 0:
            mi = None
            for i, (kind, column, rule) in enumerate(emblem_rules):
                icon_name, mi = self.render_emblem(book_id, rule, i, m.cover_grid_emblem_cache, mi, db, m.formatter, m.cover_grid_template_cache)
                if icon_name is not None:
                    pixmap = self.cached_emblem(m.cover_grid_bitmap_cache, icon_name)
                    if pixmap is not None:
                        emblems.append(pixmap)
            if marked:
                emblems.insert(0, self.cached_emblem(m.cover_grid_bitmap_cache, ':marked', m.marked_icon))
            if on_device:
                emblems.insert(0, self.cached_emblem(m.cover_grid_bitmap_cache, ':ondevice'))

        painter.save()
        right_adjust = 0
        try:
            rect = option.rect
            rect.adjust(self.MARGIN, self.MARGIN, -self.MARGIN, -self.MARGIN)
            if self.emblem_size > 0:
                self.paint_emblems(painter, rect, emblems)
            orect = QRect(rect)
            if cdata is None or cdata is False:
                title = db.field_for('title', book_id, default_value='')
                authors = ' & '.join(db.field_for('authors', book_id, default_value=()))
                painter.setRenderHint(QPainter.TextAntialiasing, True)
                painter.drawText(rect, Qt.AlignCenter|Qt.TextWordWrap, '%s\n\n%s' % (title, authors))
                if cdata is False:
                    self.render_queue.put(book_id)
            else:
                if self.title_height != 0:
                    trect = QRect(rect)
                    rect.setBottom(rect.bottom() - self.title_height)
                if self.animating is not None and self.animating.row() == index.row():
                    cdata = cdata.scaled(cdata.size() * self._animated_size)
                dpr = cdata.devicePixelRatio()
                cw, ch = int(cdata.width() / dpr), int(cdata.height() / dpr)
                dx = max(0, int((rect.width() - cw)/2.0))
                dy = max(0, rect.height() - ch)
                right_adjust = dx
                rect.adjust(dx, dy, -dx, 0)
                painter.drawPixmap(rect, cdata)
                if self.title_height != 0:
                    rect = trect
                    rect.setTop(rect.bottom() - self.title_height + 5)
                    painter.setRenderHint(QPainter.TextAntialiasing, True)
                    title, is_stars = self.render_field(db, book_id)
                    if is_stars:
                        painter.setFont(self.rating_font)
                    metrics = painter.fontMetrics()
                    painter.setPen(self.highlight_color)
                    painter.drawText(rect, Qt.AlignCenter|Qt.TextSingleLine,
                                     metrics.elidedText(title, Qt.ElideRight, rect.width()))
            if self.emblem_size > 0:
                return  # We dont draw embossed emblems as the ondevice/marked emblems are drawn in the gutter
            if marked:
                try:
                    p = self.marked_emblem
                except AttributeError:
                    p = self.marked_emblem = m.marked_icon.pixmap(48, 48)
                self.paint_embossed_emblem(p, painter, orect, right_adjust)

            if on_device:
                try:
                    p = self.on_device_emblem
                except AttributeError:
                    p = self.on_device_emblem = QIcon(I('ok.png')).pixmap(48, 48)
                self.paint_embossed_emblem(p, painter, orect, right_adjust, left=False)
        finally:
            painter.restore()

    def paint_emblems(self, painter, rect, emblems):
        gutter = self.emblem_size + self.MARGIN
        grect = QRect(rect)
        gpos = self.gutter_position
        if gpos is self.TOP:
            grect.setBottom(grect.top() + gutter)
            rect.setTop(rect.top() + gutter)
        elif gpos is self.BOTTOM:
            grect.setTop(grect.bottom() - gutter + self.MARGIN)
            rect.setBottom(rect.bottom() - gutter)
        elif gpos is self.LEFT:
            grect.setRight(grect.left() + gutter)
            rect.setLeft(rect.left() + gutter)
        else:
            grect.setLeft(grect.right() - gutter + self.MARGIN)
            rect.setRight(rect.right() - gutter)
        horizontal = gpos in (self.TOP, self.BOTTOM)
        painter.save()
        painter.setClipRect(grect)
        try:
            for i, emblem in enumerate(emblems):
                delta = 0 if i == 0 else self.emblem_size + self.MARGIN
                grect.moveLeft(grect.left() + delta) if horizontal else grect.moveTop(grect.top() + delta)
                rect = QRect(grect)
                rect.setWidth(int(emblem.width() / emblem.devicePixelRatio())), rect.setHeight(int(emblem.height() / emblem.devicePixelRatio()))
                painter.drawPixmap(rect, emblem)
        finally:
            painter.restore()

    def paint_embossed_emblem(self, pixmap, painter, orect, right_adjust, left=True):
        drect = QRect(orect)
        pw = int(pixmap.width() / pixmap.devicePixelRatio())
        ph = int(pixmap.height() / pixmap.devicePixelRatio())
        if left:
            drect.setLeft(drect.left() + right_adjust)
            drect.setRight(drect.left() + pw)
        else:
            drect.setRight(drect.right() - right_adjust)
            drect.setLeft(drect.right() - pw + 1)
        drect.setBottom(drect.bottom() - self.title_height)
        drect.setTop(drect.bottom() - ph)
        painter.drawPixmap(drect, pixmap)

    @pyqtSlot(QHelpEvent, QAbstractItemView, QStyleOptionViewItem, QModelIndex, result=bool)
    def helpEvent(self, event, view, option, index):
        if event is not None and view is not None and event.type() == QEvent.ToolTip:
            try:
                db = index.model().db
            except AttributeError:
                return False
            try:
                book_id = db.id(index.row())
            except (ValueError, IndexError, KeyError):
                return False
            db = db.new_api
            device_connected = self.parent().gui.device_connected
            on_device = device_connected is not None and db.field_for('ondevice', book_id)
            p = prepare_string_for_xml
            title = db.field_for('title', book_id)
            authors = db.field_for('authors', book_id)
            if title and authors:
                title = '<b>%s</b>' % ('<br>'.join(wrap(p(title), 120)))
                authors = '<br>'.join(wrap(p(' & '.join(authors)), 120))
                tt = '%s<br><br>%s' % (title, authors)
                series = db.field_for('series', book_id)
                if series:
                    use_roman_numbers=config['use_roman_numerals_for_series_number']
                    val = _('Book %(sidx)s of <span class="series_name">%(series)s</span>')%dict(
                        sidx=fmt_sidx(db.field_for('series_index', book_id), use_roman=use_roman_numbers),
                        series=p(series))
                    tt += '<br><br>' + val
                if on_device:
                    val = _('This book is on the device in %s') % on_device
                    tt += '<br><br>' + val
                QToolTip.showText(event.globalPos(), tt, view)
                return True
        return False
示例#3
0
class CoverDelegate(QStyledItemDelegate):

    MARGIN = 4
    TOP, LEFT, RIGHT, BOTTOM = object(), object(), object(), object()

    @pyqtProperty(float)
    def animated_size(self):
        return self._animated_size

    @animated_size.setter
    def animated_size(self, val):
        self._animated_size = val

    def __init__(self, parent):
        super(CoverDelegate, self).__init__(parent)
        self._animated_size = 1.0
        self.animation = QPropertyAnimation(self, b'animated_size', self)
        self.animation.setEasingCurve(QEasingCurve.OutInCirc)
        self.animation.setDuration(500)
        self.set_dimensions()
        self.cover_cache = CoverCache()
        self.render_queue = LifoQueue()
        self.animating = None
        self.highlight_color = QColor(Qt.white)
        self.rating_font = QFont(rating_font())

    def set_dimensions(self):
        width = self.original_width = gprefs['cover_grid_width']
        height = self.original_height = gprefs['cover_grid_height']
        self.original_show_title = show_title = gprefs['cover_grid_show_title']
        self.original_show_emblems = gprefs['show_emblems']
        self.orginal_emblem_size = gprefs['emblem_size']
        self.orginal_emblem_position = gprefs['emblem_position']
        self.emblem_size = gprefs['emblem_size'] if self.original_show_emblems else 0
        try:
            self.gutter_position = getattr(self, self.orginal_emblem_position.upper())
        except Exception:
            self.gutter_position = self.TOP

        if height < 0.1:
            height = auto_height(self.parent())
        else:
            height *= self.parent().logicalDpiY() * CM_TO_INCH

        if width < 0.1:
            width = 0.75 * height
        else:
            width *= self.parent().logicalDpiX() * CM_TO_INCH
        self.cover_size = QSize(width, height)
        self.title_height = 0
        if show_title:
            f = self.parent().font()
            sz = f.pixelSize()
            if sz < 5:
                sz = f.pointSize() * self.parent().logicalDpiY() / 72.0
            self.title_height = max(25, sz + 10)
        self.item_size = self.cover_size + QSize(2 * self.MARGIN, (2 * self.MARGIN) + self.title_height)
        if self.emblem_size > 0:
            extra = self.emblem_size + self.MARGIN
            self.item_size += QSize(extra, 0) if self.gutter_position in (self.LEFT, self.RIGHT) else QSize(0, extra)
        self.calculate_spacing()
        self.animation.setStartValue(1.0)
        self.animation.setKeyValueAt(0.5, 0.5)
        self.animation.setEndValue(1.0)

    def calculate_spacing(self):
        spc = self.original_spacing = gprefs['cover_grid_spacing']
        if spc < 0.01:
            self.spacing = max(10, min(50, int(0.1 * self.original_width)))
        else:
            self.spacing = self.parent().logicalDpiX() * CM_TO_INCH * spc

    def sizeHint(self, option, index):
        return self.item_size

    def render_field(self, db, book_id):
        is_stars = False
        try:
            field = db.pref('field_under_covers_in_grid', 'title')
            if field == 'size':
                ans = human_readable(db.field_for(field, book_id, default_value=0))
            else:
                mi = db.get_proxy_metadata(book_id)
                display_name, ans, val, fm = mi.format_field_extended(field)
                if fm and fm['datatype'] == 'rating':
                    ans = rating_to_stars(val, fm['display'].get('allow_half_stars', False))
                    is_stars = True
            return ('' if ans is None else unicode_type(ans)), is_stars
        except Exception:
            if DEBUG:
                import traceback
                traceback.print_exc()
        return '', is_stars

    def render_emblem(self, book_id, rule, rule_index, cache, mi, db, formatter, template_cache):
        ans = cache[book_id].get(rule, False)
        if ans is not False:
            return ans, mi
        ans = None
        if mi is None:
            mi = db.get_proxy_metadata(book_id)
        ans = formatter.safe_format(rule, mi, '', mi, column_name='cover_grid%d' % rule_index, template_cache=template_cache) or None
        cache[book_id][rule] = ans
        return ans, mi

    def cached_emblem(self, cache, name, raw_icon=None):
        ans = cache.get(name, False)
        if ans is not False:
            return ans
        sz = self.emblem_size
        ans = None
        if raw_icon is not None:
            ans = raw_icon.pixmap(sz, sz)
        elif name == ':ondevice':
            ans = QIcon(I('ok.png')).pixmap(sz, sz)
        elif name:
            pmap = QIcon(os.path.join(config_dir, 'cc_icons', name)).pixmap(sz, sz)
            if not pmap.isNull():
                ans = pmap
        cache[name] = ans
        return ans

    def paint(self, painter, option, index):
        QStyledItemDelegate.paint(self, painter, option, empty_index)  # draw the hover and selection highlights
        m = index.model()
        db = m.db
        try:
            book_id = db.id(index.row())
        except (ValueError, IndexError, KeyError):
            return
        if book_id in m.ids_to_highlight_set:
            painter.save()
            try:
                painter.setPen(self.highlight_color)
                painter.setRenderHint(QPainter.Antialiasing, True)
                painter.drawRoundedRect(option.rect, 10, 10, Qt.RelativeSize)
            finally:
                painter.restore()
        marked = db.data.get_marked(book_id)
        db = db.new_api
        cdata = self.cover_cache[book_id]
        device_connected = self.parent().gui.device_connected is not None
        on_device = device_connected and db.field_for('ondevice', book_id)

        emblem_rules = db.pref('cover_grid_icon_rules', default=())
        emblems = []
        if self.emblem_size > 0:
            mi = None
            for i, (kind, column, rule) in enumerate(emblem_rules):
                icon_name, mi = self.render_emblem(book_id, rule, i, m.cover_grid_emblem_cache, mi, db, m.formatter, m.cover_grid_template_cache)
                if icon_name is not None:
                    pixmap = self.cached_emblem(m.cover_grid_bitmap_cache, icon_name)
                    if pixmap is not None:
                        emblems.append(pixmap)
            if marked:
                emblems.insert(0, self.cached_emblem(m.cover_grid_bitmap_cache, ':marked', m.marked_icon))
            if on_device:
                emblems.insert(0, self.cached_emblem(m.cover_grid_bitmap_cache, ':ondevice'))

        painter.save()
        right_adjust = 0
        try:
            rect = option.rect
            rect.adjust(self.MARGIN, self.MARGIN, -self.MARGIN, -self.MARGIN)
            if self.emblem_size > 0:
                self.paint_emblems(painter, rect, emblems)
            orect = QRect(rect)
            trect = QRect(rect)
            if self.title_height != 0:
                rect.setBottom(rect.bottom() - self.title_height)
                trect.setTop(trect.bottom() - self.title_height + 5)
            if cdata is None or cdata is False:
                title = db.field_for('title', book_id, default_value='')
                authors = ' & '.join(db.field_for('authors', book_id, default_value=()))
                painter.setRenderHint(QPainter.TextAntialiasing, True)
                painter.drawText(rect, Qt.AlignCenter|Qt.TextWordWrap, '%s\n\n%s' % (title, authors))
                if cdata is False:
                    self.render_queue.put(book_id)
                if self.title_height != 0:
                    self.paint_title(painter, trect, db, book_id)
            else:
                if self.animating is not None and self.animating.row() == index.row():
                    cdata = cdata.scaled(cdata.size() * self._animated_size)
                dpr = cdata.devicePixelRatio()
                cw, ch = int(cdata.width() / dpr), int(cdata.height() / dpr)
                dx = max(0, int((rect.width() - cw)/2.0))
                dy = max(0, rect.height() - ch)
                right_adjust = dx
                rect.adjust(dx, dy, -dx, 0)
                painter.drawPixmap(rect, cdata)
                if self.title_height != 0:
                    self.paint_title(painter, trect, db, book_id)
            if self.emblem_size > 0:
                return  # We dont draw embossed emblems as the ondevice/marked emblems are drawn in the gutter
            if marked:
                try:
                    p = self.marked_emblem
                except AttributeError:
                    p = self.marked_emblem = m.marked_icon.pixmap(48, 48)
                self.paint_embossed_emblem(p, painter, orect, right_adjust)

            if on_device:
                try:
                    p = self.on_device_emblem
                except AttributeError:
                    p = self.on_device_emblem = QIcon(I('ok.png')).pixmap(48, 48)
                self.paint_embossed_emblem(p, painter, orect, right_adjust, left=False)
        finally:
            painter.restore()

    def paint_title(self, painter, rect, db, book_id):
        painter.setRenderHint(QPainter.TextAntialiasing, True)
        title, is_stars = self.render_field(db, book_id)
        if is_stars:
            painter.setFont(self.rating_font)
        metrics = painter.fontMetrics()
        painter.setPen(self.highlight_color)
        painter.drawText(rect, Qt.AlignCenter|Qt.TextSingleLine,
                            metrics.elidedText(title, Qt.ElideRight, rect.width()))

    def paint_emblems(self, painter, rect, emblems):
        gutter = self.emblem_size + self.MARGIN
        grect = QRect(rect)
        gpos = self.gutter_position
        if gpos is self.TOP:
            grect.setBottom(grect.top() + gutter)
            rect.setTop(rect.top() + gutter)
        elif gpos is self.BOTTOM:
            grect.setTop(grect.bottom() - gutter + self.MARGIN)
            rect.setBottom(rect.bottom() - gutter)
        elif gpos is self.LEFT:
            grect.setRight(grect.left() + gutter)
            rect.setLeft(rect.left() + gutter)
        else:
            grect.setLeft(grect.right() - gutter + self.MARGIN)
            rect.setRight(rect.right() - gutter)
        horizontal = gpos in (self.TOP, self.BOTTOM)
        painter.save()
        painter.setClipRect(grect)
        try:
            for i, emblem in enumerate(emblems):
                delta = 0 if i == 0 else self.emblem_size + self.MARGIN
                grect.moveLeft(grect.left() + delta) if horizontal else grect.moveTop(grect.top() + delta)
                rect = QRect(grect)
                rect.setWidth(int(emblem.width() / emblem.devicePixelRatio())), rect.setHeight(int(emblem.height() / emblem.devicePixelRatio()))
                painter.drawPixmap(rect, emblem)
        finally:
            painter.restore()

    def paint_embossed_emblem(self, pixmap, painter, orect, right_adjust, left=True):
        drect = QRect(orect)
        pw = int(pixmap.width() / pixmap.devicePixelRatio())
        ph = int(pixmap.height() / pixmap.devicePixelRatio())
        if left:
            drect.setLeft(drect.left() + right_adjust)
            drect.setRight(drect.left() + pw)
        else:
            drect.setRight(drect.right() - right_adjust)
            drect.setLeft(drect.right() - pw + 1)
        drect.setBottom(drect.bottom() - self.title_height)
        drect.setTop(drect.bottom() - ph)
        painter.drawPixmap(drect, pixmap)

    @pyqtSlot(QHelpEvent, QAbstractItemView, QStyleOptionViewItem, QModelIndex, result=bool)
    def helpEvent(self, event, view, option, index):
        if event is not None and view is not None and event.type() == QEvent.ToolTip:
            try:
                db = index.model().db
            except AttributeError:
                return False
            try:
                book_id = db.id(index.row())
            except (ValueError, IndexError, KeyError):
                return False
            db = db.new_api
            device_connected = self.parent().gui.device_connected
            on_device = device_connected is not None and db.field_for('ondevice', book_id)
            p = prepare_string_for_xml
            title = db.field_for('title', book_id)
            authors = db.field_for('authors', book_id)
            if title and authors:
                title = '<b>%s</b>' % ('<br>'.join(wrap(p(title), 120)))
                authors = '<br>'.join(wrap(p(' & '.join(authors)), 120))
                tt = '%s<br><br>%s' % (title, authors)
                series = db.field_for('series', book_id)
                if series:
                    use_roman_numbers=config['use_roman_numerals_for_series_number']
                    val = _('Book %(sidx)s of <span class="series_name">%(series)s</span>')%dict(
                        sidx=fmt_sidx(db.field_for('series_index', book_id), use_roman=use_roman_numbers),
                        series=p(series))
                    tt += '<br><br>' + val
                if on_device:
                    val = _('This book is on the device in %s') % on_device
                    tt += '<br><br>' + val
                QToolTip.showText(event.globalPos(), tt, view)
                return True
        return False
示例#4
0
class Pointer(QWidget):
    def __init__(self, gui):
        QWidget.__init__(self, gui)
        self.setObjectName('jobs_pointer')
        self.setVisible(False)
        self.resize(100, 80)
        self.animation = QPropertyAnimation(self, "geometry", self)
        self.animation.setDuration(750)
        self.animation.setLoopCount(2)
        self.animation.setEasingCurve(QEasingCurve.Linear)
        self.animation.finished.connect(self.hide)

        taily, heady = 0, 55
        self.arrow_path = QPainterPath(QPointF(40, taily))
        self.arrow_path.lineTo(40, heady)
        self.arrow_path.lineTo(20, heady)
        self.arrow_path.lineTo(50, self.height())
        self.arrow_path.lineTo(80, heady)
        self.arrow_path.lineTo(60, heady)
        self.arrow_path.lineTo(60, taily)
        self.arrow_path.closeSubpath()

        c = self.palette().color(QPalette.Active, QPalette.WindowText)
        self.color = QColor(c)
        self.color.setAlpha(100)
        self.brush = QBrush(self.color, Qt.SolidPattern)

        # from PyQt5.Qt import QTimer
        # QTimer.singleShot(1000, self.start)

    @property
    def gui(self):
        return self.parent()

    def point_at(self, frac):
        return (self.path.pointAtPercent(frac).toPoint() -
                QPoint(self.rect().center().x(), self.height()))

    def rect_at(self, frac):
        return QRect(self.point_at(frac), self.size())

    def abspos(self, widget):
        pos = widget.pos()
        parent = widget.parent()
        while parent is not self.gui:
            pos += parent.pos()
            parent = parent.parent()
        return pos

    def start(self):
        if config['disable_animations']:
            return
        self.setVisible(True)
        self.raise_()
        end = self.abspos(self.gui.jobs_button)
        end = QPointF(end.x() + self.gui.jobs_button.width() / 3.0,
                      end.y() + 20)
        start = QPointF(end.x(), end.y() - 0.5 * self.height())
        self.path = QPainterPath(QPointF(start))
        self.path.lineTo(end)
        self.path.closeSubpath()
        self.animation.setStartValue(self.rect_at(0.0))
        self.animation.setEndValue(self.rect_at(1.0))
        self.animation.setDirection(self.animation.Backward)
        num_keys = 100
        for i in xrange(1, num_keys):
            i /= num_keys
            self.animation.setKeyValueAt(i, self.rect_at(i))
        self.animation.start()

    def paintEvent(self, ev):
        p = QPainter(self)
        p.setRenderHints(p.Antialiasing)
        p.setBrush(self.brush)
        p.setPen(Qt.NoPen)
        p.drawPath(self.arrow_path)
        p.end()
示例#5
0
class Pointer(QWidget):

    def __init__(self, gui):
        QWidget.__init__(self, gui)
        self.setObjectName('jobs_pointer')
        self.setVisible(False)
        self.resize(100, 80)
        self.animation = QPropertyAnimation(self, "geometry", self)
        self.animation.setDuration(750)
        self.animation.setLoopCount(2)
        self.animation.setEasingCurve(QEasingCurve.Linear)
        self.animation.finished.connect(self.hide)

        taily, heady = 0, 55
        self.arrow_path = QPainterPath(QPointF(40, taily))
        self.arrow_path.lineTo(40, heady)
        self.arrow_path.lineTo(20, heady)
        self.arrow_path.lineTo(50, self.height())
        self.arrow_path.lineTo(80, heady)
        self.arrow_path.lineTo(60, heady)
        self.arrow_path.lineTo(60, taily)
        self.arrow_path.closeSubpath()

        c = self.palette().color(QPalette.Active, QPalette.WindowText)
        self.color = QColor(c)
        self.color.setAlpha(100)
        self.brush = QBrush(self.color, Qt.SolidPattern)

        # from PyQt5.Qt import QTimer
        # QTimer.singleShot(1000, self.start)

    @property
    def gui(self):
        return self.parent()

    def point_at(self, frac):
        return (self.path.pointAtPercent(frac).toPoint() -
                QPoint(self.rect().center().x(), self.height()))

    def rect_at(self, frac):
        return QRect(self.point_at(frac), self.size())

    def abspos(self, widget):
        pos = widget.pos()
        parent = widget.parent()
        while parent is not self.gui:
            pos += parent.pos()
            parent = parent.parent()
        return pos

    def start(self):
        if config['disable_animations']:
            return
        self.setVisible(True)
        self.raise_()
        end = self.abspos(self.gui.jobs_button)
        end = QPointF( end.x() + self.gui.jobs_button.width()/3.0, end.y()+20)
        start = QPointF(end.x(), end.y() - 0.5*self.height())
        self.path = QPainterPath(QPointF(start))
        self.path.lineTo(end)
        self.path.closeSubpath()
        self.animation.setStartValue(self.rect_at(0.0))
        self.animation.setEndValue(self.rect_at(1.0))
        self.animation.setDirection(self.animation.Backward)
        num_keys = 100
        for i in xrange(1, num_keys):
            i /= num_keys
            self.animation.setKeyValueAt(i, self.rect_at(i))
        self.animation.start()

    def paintEvent(self, ev):
        p = QPainter(self)
        p.setRenderHints(p.Antialiasing)
        p.setBrush(self.brush)
        p.setPen(Qt.NoPen)
        p.drawPath(self.arrow_path)
        p.end()