Python QPropertyAnimation.setKeyValueAt方法代碼示例

本文整理匯總了Python中PyQt4.Qt.QPropertyAnimation.setKeyValueAt方法的典型用法代碼示例。如果您正苦於以下問題：Python QPropertyAnimation.setKeyValueAt方法的具體用法？Python QPropertyAnimation.setKeyValueAt怎麽用？Python QPropertyAnimation.setKeyValueAt使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類PyQt4.Qt.QPropertyAnimation的用法示例。

在下文中一共展示了QPropertyAnimation.setKeyValueAt方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。

示例1: CoverDelegate

# 需要導入模塊: from PyQt4.Qt import QPropertyAnimation [as 別名]
# 或者: from PyQt4.Qt.QPropertyAnimation import setKeyValueAt [as 別名]
class CoverDelegate(QStyledItemDelegate):

    MARGIN = 4

    @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, 'animated_size', self)
        self.animation.setEasingCurve(QEasingCurve.OutInCirc)
        self.animation.setDuration(500)
        self.set_dimensions()
        self.cover_cache = CoverCache(limit=gprefs['cover_grid_cache_size'])
        self.render_queue = Queue()
        self.animating = None
        self.highlight_color = QColor(Qt.white)

    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']

        if height < 0.1:
            height = max(185, QApplication.instance().desktop().availableGeometry(self.parent()).height() / 5.0)
        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)
        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 < 0.1:
            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 paint(self, painter, option, index):
        QStyledItemDelegate.paint(self, painter, option, QModelIndex())  # 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()
        db = db.new_api
        cdata = self.cover_cache[book_id]
        painter.save()
        try:
            rect = option.rect
            rect.adjust(self.MARGIN, self.MARGIN, -self.MARGIN, -self.MARGIN)
            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:
                    orect = 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)
                dx = max(0, int((rect.width() - cdata.width())/2.0))
                dy = max(0, rect.height() - cdata.height())
                rect.adjust(dx, dy, -dx, 0)
#.........這裏部分代碼省略.........

開發者ID:jackpinto，項目名稱:calibre，代碼行數:103，代碼來源:alternate_views.py

示例2: CoverDelegate

# 需要導入模塊: from PyQt4.Qt import QPropertyAnimation [as 別名]
# 或者: from PyQt4.Qt.QPropertyAnimation import setKeyValueAt [as 別名]
class CoverDelegate(QStyledItemDelegate):

    MARGIN = 4

    @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, 'animated_size', self)
        self.animation.setEasingCurve(QEasingCurve.OutInCirc)
        self.animation.setDuration(500)
        self.set_dimensions()
        self.cover_cache = CoverCache(limit=gprefs['cover_grid_cache_size'])
        self.render_queue = Queue()
        self.animating = None
        self.highlight_color = QColor(Qt.white)

    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']

        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)
        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 paint(self, painter, option, index):
        QStyledItemDelegate.paint(self, painter, option, QModelIndex())  # 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)
        painter.save()
        right_adjust = 0
        try:
            rect = option.rect
            rect.adjust(self.MARGIN, self.MARGIN, -self.MARGIN, -self.MARGIN)
            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)
#.........這裏部分代碼省略.........

開發者ID:shamray，項目名稱:calibre，代碼行數:103，代碼來源:alternate_views.py

示例3: Pointer

# 需要導入模塊: from PyQt4.Qt import QPropertyAnimation [as 別名]
# 或者: from PyQt4.Qt.QPropertyAnimation import setKeyValueAt [as 別名]
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 PyQt4.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()

開發者ID:089git，項目名稱:calibre，代碼行數:79，代碼來源:job_indicator.py

注：本文中的PyQt4.Qt.QPropertyAnimation.setKeyValueAt方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。