Python Qt.QSize类代码示例

class CoverView(QWidget):
    def __init__(self, parent=None):
        QWidget.__init__(self, parent)
        self.current_pixmap_size = QSize(0, 0)
        self.pixmap = QPixmap()
        self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)

    def set_pixmap(self, data):
        self.pixmap.loadFromData(data)
        self.current_pixmap_size = self.pixmap.size()
        self.update()

    def paintEvent(self, event):
        if self.pixmap.isNull():
            return
        canvas_size = self.rect()
        width = self.current_pixmap_size.width()
        extrax = canvas_size.width() - width
        if extrax < 0:
            extrax = 0
        x = int(extrax / 2.0)
        height = self.current_pixmap_size.height()
        extray = canvas_size.height() - height
        if extray < 0:
            extray = 0
        y = int(extray / 2.0)
        target = QRect(x, y, min(canvas_size.width(), width), min(canvas_size.height(), height))
        p = QPainter(self)
        p.setRenderHints(QPainter.Antialiasing | QPainter.SmoothPixmapTransform)
        p.drawPixmap(target, self.pixmap.scaled(target.size(), Qt.KeepAspectRatio, Qt.SmoothTransformation))
        p.end()

    def sizeHint(self):
        return QSize(300, 400)

 def update_tooltip(self, current_path):
     try:
         sz = self.pixmap.size()
     except:
         sz = QSize(0, 0)
     self.setToolTip(
         '<p>'+_('Double click to open the Book details window') +
         '<br><br>' + _('Path') + ': ' + current_path +
         '<br><br>' + _('Cover size: %(width)d x %(height)d pixels')%dict(
             width=sz.width(), height=sz.height())
     )

 def update_tooltip(self, current_path):
     try:
         sz = self.pixmap.size()
     except:
         sz = QSize(0, 0)
     self.setToolTip(
         "<p>"
         + _("Double-click to open Book Details window")
         + "<br><br>"
         + _("Path")
         + ": "
         + current_path
         + "<br><br>"
         + _("Cover size: %(width)d x %(height)d") % dict(width=sz.width(), height=sz.height())
     )

 def set_normal_icon_size(self, w, h):
     self.normal_icon_size = QSize(w, h)
     self.setIconSize(self.normal_icon_size)
     try:
         self.setMinimumSize(self.sizeHint())
     except:
         self.setMinimumSize(QSize(w+5, h+5))

 def __init__(self, *args):
     QToolButton.__init__(self, *args)
     self.animation = QPropertyAnimation(self, 'iconSize', self)
     self.animation.setDuration(60/72.*1000)
     self.animation.setLoopCount(4)
     self.normal_icon_size = QSize(64, 64)
     self.animation.valueChanged.connect(self.value_changed)
     self.setCursor(Qt.PointingHandCursor)
     self.animation.finished.connect(self.animation_finished)

 def set_dimensions(self):
     width, height = 120, 160
     self.cover_size = QSize(width, height)
     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()

 def do_layout(self):
     if self.rect().width() == 0 or self.rect().height() == 0:
         return
     pixmap = self.pixmap
     pwidth, pheight = pixmap.width(), pixmap.height()
     try:
         self.pwidth, self.pheight = fit_image(pwidth, pheight, self.rect().width(), self.rect().height())[1:]
     except:
         self.pwidth, self.pheight = self.rect().width() - 1, self.rect().height() - 1
     self.current_pixmap_size = QSize(self.pwidth, self.pheight)
     self.animation.setEndValue(self.current_pixmap_size)

 def __init__(self,view, scene_coord,temple,size,parent=None):
     super (TempleItem,self).__init__(parent)
     #self.polygon  = self.getTriangle (size)
     self.rotation = 0.0
     self.color = QColor(0,0,125)
     self.name_visible = True
     self.name = temple.name
     self.model = temple
     self.view = view
     self.size = QSize(32,32)
     self.scene_coord = scene_coord
     #set flags
     self.setFlag(QGraphicsItem.ItemIgnoresTransformations)
     self.setFlag(QGraphicsItem.ItemSendsGeometryChanges)
     self.setFlag(QGraphicsItem.ItemIsSelectable)
     self.setFlag(QGraphicsItem.ItemIsMovable)

    def setData (self,list_items):
        size = min(self.frameSize().width()/2.0,self.frameSize().height())
        self.size_pie = QSize(size,size)
        #print ('size pie ',self.size_pie)
        if self.initialize == False:
            self.c_box = QComboBox()
            self.c_box.addItem("all")
            self.c_box.addItem("alive")
            self.c_box.addItem("dead")
            self.c_box.currentIndexChanged.connect(self.update)
            proxy = self.my_scene.addWidget(self.c_box)
            x = self.size_pie.width()+ self.space
            proxy.setPos(QPointF(x,self.margin['top']))    
            self.initialize = True

        self.data = list_items
        self.update()

class ThrobbingButton(QToolButton):

    def __init__(self, *args):
        QToolButton.__init__(self, *args)
        self.animation = QPropertyAnimation(self, 'iconSize', self)
        self.animation.setDuration(60/72.*1000)
        self.animation.setLoopCount(4)
        self.normal_icon_size = QSize(64, 64)
        self.animation.valueChanged.connect(self.value_changed)
        self.setCursor(Qt.PointingHandCursor)
        self.animation.finished.connect(self.animation_finished)

    def set_normal_icon_size(self, w, h):
        self.normal_icon_size = QSize(w, h)
        self.setIconSize(self.normal_icon_size)
        try:
            self.setMinimumSize(self.sizeHint())
        except:
            self.setMinimumSize(QSize(w+5, h+5))

    def animation_finished(self):
        self.setIconSize(self.normal_icon_size)

    def enterEvent(self, ev):
        self.start_animation()

    def leaveEvent(self, ev):
        self.stop_animation()

    def value_changed(self, val):
        self.update()

    def start_animation(self):
        if config['disable_animations']:
            return
        if self.animation.state() != self.animation.Stopped or not self.isVisible():
            return
        size = self.normal_icon_size.width()
        smaller = int(0.7 * size)
        self.animation.setStartValue(QSize(smaller, smaller))
        self.animation.setEndValue(self.normal_icon_size)
        QMetaObject.invokeMethod(self.animation, 'start', Qt.QueuedConnection)

    def stop_animation(self):
        self.animation.stop()
        self.animation_finished()

class ImageDelegate(QStyledItemDelegate):

    MARGIN = 4

    def __init__(self, parent):
        super(ImageDelegate, self).__init__(parent)
        self.current_basic_size = tprefs.get('image-thumbnail-preview-size', [120, 160])
        self.set_dimensions()

    def change_size(self, increase=True):
        percent = 10 if increase else -10
        frac = (100 + percent) / 100.
        self.current_basic_size[0] = min(1200, max(40, int(frac * self.current_basic_size[0])))
        self.current_basic_size[1] = min(1600, max(60, int(frac * self.current_basic_size[1])))
        tprefs.set('image-thumbnail-preview-size', self.current_basic_size)
        self.set_dimensions()

    def set_dimensions(self):
        width, height = self.current_basic_size
        self.cover_size = QSize(width, height)
        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.cover_cache = {}

    def calculate_spacing(self):
        self.spacing = max(10, min(50, int(0.1 * self.item_size.width())))

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

    def paint(self, painter, option, index):
        QStyledItemDelegate.paint(self, painter, option, empty_index)  # draw the hover and selection highlights
        name = unicode_type(index.data(Qt.DisplayRole) or '')
        cover = self.cover_cache.get(name, None)
        if cover is None:
            cover = self.cover_cache[name] = QPixmap()
            try:
                raw = current_container().raw_data(name, decode=False)
            except:
                pass
            else:
                try:
                    dpr = painter.device().devicePixelRatioF()
                except AttributeError:
                    dpr = painter.device().devicePixelRatio()
                cover.loadFromData(raw)
                cover.setDevicePixelRatio(dpr)
                if not cover.isNull():
                    scaled, width, height = fit_image(cover.width(), cover.height(), self.cover_size.width(), self.cover_size.height())
                    if scaled:
                        cover = self.cover_cache[name] = cover.scaled(int(dpr*width), int(dpr*height), transformMode=Qt.SmoothTransformation)

        painter.save()
        try:
            rect = option.rect
            rect.adjust(self.MARGIN, self.MARGIN, -self.MARGIN, -self.MARGIN)
            trect = QRect(rect)
            rect.setBottom(rect.bottom() - self.title_height)
            if not cover.isNull():
                dx = max(0, int((rect.width() - int(cover.width()/cover.devicePixelRatio()))/2.0))
                dy = max(0, rect.height() - int(cover.height()/cover.devicePixelRatio()))
                rect.adjust(dx, dy, -dx, 0)
                painter.drawPixmap(rect, cover)
            rect = trect
            rect.setTop(rect.bottom() - self.title_height + 5)
            painter.setRenderHint(QPainter.TextAntialiasing, True)
            metrics = painter.fontMetrics()
            painter.drawText(rect, Qt.AlignCenter|Qt.TextSingleLine,
                                metrics.elidedText(name, Qt.ElideLeft, rect.width()))
        finally:
            painter.restore()

class CoverView(QWidget):  # {{{

    cover_changed = pyqtSignal(object, object)
    cover_removed = pyqtSignal(object)
    open_cover_with = pyqtSignal(object, object)
    search_internet = pyqtSignal(object)

    def __init__(self, vertical, parent=None):
        QWidget.__init__(self, parent)
        self._current_pixmap_size = QSize(120, 120)
        self.vertical = vertical

        self.animation = QPropertyAnimation(self, b'current_pixmap_size', self)
        self.animation.setEasingCurve(QEasingCurve(QEasingCurve.OutExpo))
        self.animation.setDuration(1000)
        self.animation.setStartValue(QSize(0, 0))
        self.animation.valueChanged.connect(self.value_changed)

        self.setSizePolicy(
                QSizePolicy.Expanding if vertical else QSizePolicy.Minimum,
                QSizePolicy.Expanding)

        self.default_pixmap = QPixmap(I('default_cover.png'))
        self.pixmap = self.default_pixmap
        self.pwidth = self.pheight = None
        self.data = {}

        self.do_layout()

    def value_changed(self, val):
        self.update()

    def setCurrentPixmapSize(self, val):
        self._current_pixmap_size = val

    def do_layout(self):
        if self.rect().width() == 0 or self.rect().height() == 0:
            return
        pixmap = self.pixmap
        pwidth, pheight = pixmap.width(), pixmap.height()
        try:
            self.pwidth, self.pheight = fit_image(pwidth, pheight,
                            self.rect().width(), self.rect().height())[1:]
        except:
            self.pwidth, self.pheight = self.rect().width()-1, \
                    self.rect().height()-1
        self.current_pixmap_size = QSize(self.pwidth, self.pheight)
        self.animation.setEndValue(self.current_pixmap_size)

    def show_data(self, data):
        self.animation.stop()
        same_item = getattr(data, 'id', True) == self.data.get('id', False)
        self.data = {'id':data.get('id', None)}
        if data.cover_data[1]:
            self.pixmap = QPixmap.fromImage(data.cover_data[1])
            if self.pixmap.isNull() or self.pixmap.width() < 5 or \
                    self.pixmap.height() < 5:
                self.pixmap = self.default_pixmap
        else:
            self.pixmap = self.default_pixmap
        self.do_layout()
        self.update()
        if (not same_item and not config['disable_animations'] and
                self.isVisible()):
            self.animation.start()

    def paintEvent(self, event):
        canvas_size = self.rect()
        width = self.current_pixmap_size.width()
        extrax = canvas_size.width() - width
        if extrax < 0:
            extrax = 0
        x = int(extrax/2.)
        height = self.current_pixmap_size.height()
        extray = canvas_size.height() - height
        if extray < 0:
            extray = 0
        y = int(extray/2.)
        target = QRect(x, y, width, height)
        p = QPainter(self)
        p.setRenderHints(QPainter.Antialiasing | QPainter.SmoothPixmapTransform)
        try:
            dpr = self.devicePixelRatioF()
        except AttributeError:
            dpr = self.devicePixelRatio()
        spmap = self.pixmap.scaled(target.size() * dpr, Qt.KeepAspectRatio, Qt.SmoothTransformation)
        spmap.setDevicePixelRatio(dpr)
        p.drawPixmap(target, spmap)
        if gprefs['bd_overlay_cover_size']:
            sztgt = target.adjusted(0, 0, 0, -4)
            f = p.font()
            f.setBold(True)
            p.setFont(f)
            sz = u'\u00a0%d x %d\u00a0'%(self.pixmap.width(), self.pixmap.height())
            flags = Qt.AlignBottom|Qt.AlignRight|Qt.TextSingleLine
            szrect = p.boundingRect(sztgt, flags, sz)
            p.fillRect(szrect.adjusted(0, 0, 0, 4), QColor(0, 0, 0, 200))
            p.setPen(QPen(QColor(255,255,255)))
            p.drawText(sztgt, flags, sz)
        p.end()
#.........这里部分代码省略.........

class ImageDelegate(QStyledItemDelegate):

    MARGIN = 4

    def __init__(self, parent):
        super(ImageDelegate, self).__init__(parent)
        self.set_dimensions()
        self.cover_cache = {}

    def set_dimensions(self):
        width, height = 120, 160
        self.cover_size = QSize(width, height)
        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()

    def calculate_spacing(self):
        self.spacing = max(10, min(50, int(0.1 * self.item_size.width())))

    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
        name = unicode(index.data(Qt.DisplayRole) or '')
        cover = self.cover_cache.get(name, None)
        if cover is None:
            cover = self.cover_cache[name] = QPixmap()
            try:
                raw = current_container().raw_data(name, decode=False)
            except:
                pass
            else:
                cover.loadFromData(raw)
                if not cover.isNull():
                    scaled, width, height = fit_image(cover.width(), cover.height(), self.cover_size.width(), self.cover_size.height())
                    if scaled:
                        cover = self.cover_cache[name] = cover.scaled(width, height, transformMode=Qt.SmoothTransformation)

        painter.save()
        try:
            rect = option.rect
            rect.adjust(self.MARGIN, self.MARGIN, -self.MARGIN, -self.MARGIN)
            trect = QRect(rect)
            rect.setBottom(rect.bottom() - self.title_height)
            if not cover.isNull():
                dx = max(0, int((rect.width() - cover.width())/2.0))
                dy = max(0, rect.height() - cover.height())
                rect.adjust(dx, dy, -dx, 0)
                painter.drawPixmap(rect, cover)
            rect = trect
            rect.setTop(rect.bottom() - self.title_height + 5)
            painter.setRenderHint(QPainter.TextAntialiasing, True)
            metrics = painter.fontMetrics()
            painter.drawText(rect, Qt.AlignCenter|Qt.TextSingleLine,
                                metrics.elidedText(name, Qt.ElideLeft, rect.width()))
        finally:
            painter.restore()

class CoverView(QWidget):  # {{{

    cover_changed = pyqtSignal(object, object)
    cover_removed = pyqtSignal(object)

    def __init__(self, vertical, parent=None):
        QWidget.__init__(self, parent)
        self._current_pixmap_size = QSize(120, 120)
        self.vertical = vertical

        self.animation = QPropertyAnimation(self, "current_pixmap_size", self)
        self.animation.setEasingCurve(QEasingCurve(QEasingCurve.OutExpo))
        self.animation.setDuration(1000)
        self.animation.setStartValue(QSize(0, 0))
        self.animation.valueChanged.connect(self.value_changed)

        self.setSizePolicy(QSizePolicy.Expanding if vertical else QSizePolicy.Minimum, QSizePolicy.Expanding)

        self.default_pixmap = QPixmap(I("book.png"))
        self.pixmap = self.default_pixmap
        self.pwidth = self.pheight = None
        self.data = {}

        self.do_layout()

    def value_changed(self, val):
        self.update()

    def setCurrentPixmapSize(self, val):
        self._current_pixmap_size = val

    def do_layout(self):
        if self.rect().width() == 0 or self.rect().height() == 0:
            return
        pixmap = self.pixmap
        pwidth, pheight = pixmap.width(), pixmap.height()
        try:
            self.pwidth, self.pheight = fit_image(pwidth, pheight, self.rect().width(), self.rect().height())[1:]
        except:
            self.pwidth, self.pheight = self.rect().width() - 1, self.rect().height() - 1
        self.current_pixmap_size = QSize(self.pwidth, self.pheight)
        self.animation.setEndValue(self.current_pixmap_size)

    def show_data(self, data):
        self.animation.stop()
        same_item = getattr(data, "id", True) == self.data.get("id", False)
        self.data = {"id": data.get("id", None)}
        if data.cover_data[1]:
            self.pixmap = QPixmap.fromImage(data.cover_data[1])
            if self.pixmap.isNull() or self.pixmap.width() < 5 or self.pixmap.height() < 5:
                self.pixmap = self.default_pixmap
        else:
            self.pixmap = self.default_pixmap
        self.do_layout()
        self.update()
        if not same_item and not config["disable_animations"] and self.isVisible():
            self.animation.start()

    def paintEvent(self, event):
        canvas_size = self.rect()
        width = self.current_pixmap_size.width()
        extrax = canvas_size.width() - width
        if extrax < 0:
            extrax = 0
        x = int(extrax / 2.0)
        height = self.current_pixmap_size.height()
        extray = canvas_size.height() - height
        if extray < 0:
            extray = 0
        y = int(extray / 2.0)
        target = QRect(x, y, width, height)
        p = QPainter(self)
        p.setRenderHints(QPainter.Antialiasing | QPainter.SmoothPixmapTransform)
        p.drawPixmap(target, self.pixmap.scaled(target.size(), Qt.KeepAspectRatio, Qt.SmoothTransformation))
        if gprefs["bd_overlay_cover_size"]:
            sztgt = target.adjusted(0, 0, 0, -4)
            f = p.font()
            f.setBold(True)
            p.setFont(f)
            sz = u"\u00a0%d x %d\u00a0" % (self.pixmap.width(), self.pixmap.height())
            flags = Qt.AlignBottom | Qt.AlignRight | Qt.TextSingleLine
            szrect = p.boundingRect(sztgt, flags, sz)
            p.fillRect(szrect.adjusted(0, 0, 0, 4), QColor(0, 0, 0, 200))
            p.setPen(QPen(QColor(255, 255, 255)))
            p.drawText(sztgt, flags, sz)
        p.end()

    current_pixmap_size = pyqtProperty("QSize", fget=lambda self: self._current_pixmap_size, fset=setCurrentPixmapSize)

    def contextMenuEvent(self, ev):
        cm = QMenu(self)
        paste = cm.addAction(_("Paste Cover"))
        copy = cm.addAction(_("Copy Cover"))
        remove = cm.addAction(_("Remove Cover"))
        if not QApplication.instance().clipboard().mimeData().hasImage():
            paste.setEnabled(False)
        copy.triggered.connect(self.copy_to_clipboard)
        paste.triggered.connect(self.paste_from_clipboard)
        remove.triggered.connect(self.remove_cover)
        cm.exec_(ev.globalPos())
#.........这里部分代码省略.........

 def minimumSize(self):
     size = QSize()
     for item in self.items:
         size = size.expandedTo(item.minimumSize())
     left, top, right, bottom = self.getContentsMargins()
     return size + QSize(left + right, top + bottom)