Python Qt.QRect类代码示例

 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)
     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()

 def paintEvent(self, event):
     QWidget.paintEvent(self, event)
     pmap = self._pixmap
     if pmap.isNull():
         return
     w, h = pmap.width(), pmap.height()
     ow, oh = w, h
     cw, ch = self.rect().width(), self.rect().height()
     scaled, nw, nh = fit_image(w, h, cw, ch)
     if scaled:
         pmap = pmap.scaled(nw, nh, Qt.IgnoreAspectRatio, Qt.SmoothTransformation)
     w, h = pmap.width(), pmap.height()
     x = int(abs(cw - w) / 2.0)
     y = int(abs(ch - h) / 2.0)
     target = QRect(x, y, w, h)
     p = QPainter(self)
     p.setRenderHints(QPainter.Antialiasing | QPainter.SmoothPixmapTransform)
     p.drawPixmap(target, pmap)
     if self.draw_border:
         pen = QPen()
         pen.setWidth(self.BORDER_WIDTH)
         p.setPen(pen)
         p.drawRect(target)
     if self.show_size:
         sztgt = target.adjusted(0, 0, 0, -4)
         f = p.font()
         f.setBold(True)
         p.setFont(f)
         sz = u"\u00a0%d x %d\u00a0" % (ow, oh)
         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()

def drag_icon(self, cover, multiple):
    cover = cover.scaledToHeight(120, Qt.SmoothTransformation)
    if multiple:
        base_width = cover.width()
        base_height = cover.height()
        base = QImage(base_width+21, base_height+21,
                QImage.Format_ARGB32_Premultiplied)
        base.fill(QColor(255, 255, 255, 0).rgba())
        p = QPainter(base)
        rect = QRect(20, 0, base_width, base_height)
        p.fillRect(rect, QColor('white'))
        p.drawRect(rect)
        rect.moveLeft(10)
        rect.moveTop(10)
        p.fillRect(rect, QColor('white'))
        p.drawRect(rect)
        rect.moveLeft(0)
        rect.moveTop(20)
        p.fillRect(rect, QColor('white'))
        p.save()
        p.setCompositionMode(p.CompositionMode_SourceAtop)
        p.drawImage(rect.topLeft(), cover)
        p.restore()
        p.drawRect(rect)
        p.end()
        cover = base
    return QPixmap.fromImage(cover)

def screen_pos_size(): ###e this copies code in main.py -- main.py should call this
    """
    Return (x,y),(w,h), where the main screen area
    (not including menubar, for Mac) is in a rect of size w,h,
    topleft at x,y. Note that x,y is 0,0 except for Mac.
    Current implementation guesses Mac menubar size since it doesn't
    know how to measure it.
    """
    # Create desktop widget to obtain screen resolution
    dtop = QDesktopWidget()
    screensize = QRect (dtop.screenGeometry (0))

    if is_macintosh():
        # menubar_height = 44 was measured (approximately) on an iMac G5 20 inch
        # screen; I don't know if it's the same on all Macs (or whether it can
        # vary with OS or user settings). (Is there any way of getting this info
        # from Qt? #e)
        menubar_height = 44
    else:
        menubar_height = 0

    screen_w = screensize.width()
    screen_h = screensize.height() # of which menubar_height is in use at the top

    x,y = 0,0
    w,h = screen_w, screen_h

    y += menubar_height
    h -= menubar_height

    return (x,y), (w,h)

 def draw(self, painter, width, palette):
     flags = self.FLAGS | (Qt.AlignRight if self.right_align else Qt.AlignLeft)
     rect = QRect(self.rect)
     if self.right_align:
         rect.setRight(width - self.SIDE_MARGIN)
     painter.setPen(palette.color(self.color_role) if self.override_color is None else self.override_color)
     br = painter.drawText(rect, flags, self.text)
     if self.swatch is not None:
         r = QRect(br.right() + self.SIDE_MARGIN // 2, br.top() + 2, br.height() - 4, br.height() - 4)
         painter.fillRect(r, self.swatch)

 def paint(self, painter, option, index):
     QStyledItemDelegate.paint(self, painter, option, index)
     style = QApplication.style()
     waiting = self.timer.isActive() and index.data(Qt.UserRole).toBool()
     if waiting:
         rect = QRect(0, 0, self.spinner_width, self.spinner_width)
         rect.moveCenter(option.rect.center())
         self.draw_spinner(painter, rect)
     else:
         # Ensure the cover is rendered over any selection rect
         style.drawItemPixmap(painter, option.rect, Qt.AlignTop|Qt.AlignHCenter,
             QPixmap(index.data(Qt.DecorationRole)))

 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)
     p.drawPixmap(target, self.pixmap.scaled(target.size(),
         Qt.KeepAspectRatio, Qt.SmoothTransformation))
     p.end()

    def do_layout(self):
        fm = self.fontMetrics()
        bounding_rect = lambda text: fm.boundingRect(0, 0, 10000, 10000, Cell.FLAGS, text)
        line_spacing = 2
        side_margin = Cell.SIDE_MARGIN
        self.rows = []
        ypos = line_spacing + (1 if self.is_first else 0)
        if 'href' in self.data:
            name = self.data['href']
            if isinstance(name, list):
                name = self.html_name
            br1 = bounding_rect(name)
            sel = self.data['selector'] or ''
            if self.data['type'] == 'inline':
                sel = 'style=""'
            br2 = bounding_rect(sel)
            self.hyperlink_rect = QRect(side_margin, ypos, br1.width(), br1.height())
            self.rows.append([
                Cell(name, self.hyperlink_rect, color_role=QPalette.Link),
                Cell(sel, QRect(br1.right() + side_margin, ypos, br2.width(), br2.height()), right_align=True)
            ])
            ypos += max(br1.height(), br2.height()) + 2 * line_spacing

        for prop in self.data['properties']:
            text = prop.name + ':\xa0'
            br1 = bounding_rect(text)
            vtext = prop.value + '\xa0' + ('!' if prop.important else '') + prop.important
            br2 = bounding_rect(vtext)
            self.rows.append([
                Cell(text, QRect(side_margin, ypos, br1.width(), br1.height()), color_role=QPalette.LinkVisited, is_overriden=prop.is_overriden),
                Cell(vtext, QRect(br1.right() + side_margin, ypos, br2.width(), br2.height()), swatch=prop.color, is_overriden=prop.is_overriden)
            ])
            ypos += max(br1.height(), br2.height()) + line_spacing

        self.height_hint = ypos + line_spacing
        self.width_hint = max(row[-1].rect.right() + side_margin for row in self.rows) if self.rows else 0

class Declaration(QWidget):

    hyperlink_activated = pyqtSignal(object)

    def __init__(self, html_name, data, is_first=False, parent=None):
        QWidget.__init__(self, parent)
        self.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Minimum)
        self.data = data
        self.is_first = is_first
        self.html_name = html_name
        self.do_layout()
        self.setMouseTracking(True)

    def do_layout(self):
        fm = self.fontMetrics()
        bounding_rect = lambda text: fm.boundingRect(0, 0, 10000, 10000, Cell.FLAGS, text)
        line_spacing = 2
        side_margin = Cell.SIDE_MARGIN
        self.rows = []
        ypos = line_spacing + (1 if self.is_first else 0)
        if 'href' in self.data:
            name = self.data['href']
            if isinstance(name, list):
                name = self.html_name
            br1 = bounding_rect(name)
            sel = self.data['selector'] or ''
            if self.data['type'] == 'inline':
                sel = 'style=""'
            br2 = bounding_rect(sel)
            self.hyperlink_rect = QRect(side_margin, ypos, br1.width(), br1.height())
            self.rows.append([
                Cell(name, self.hyperlink_rect, color_role=QPalette.Link),
                Cell(sel, QRect(br1.right() + side_margin, ypos, br2.width(), br2.height()), right_align=True)
            ])
            ypos += max(br1.height(), br2.height()) + 2 * line_spacing

        for prop in self.data['properties']:
            text = prop.name + ':\xa0'
            br1 = bounding_rect(text)
            vtext = prop.value + '\xa0' + ('!' if prop.important else '') + prop.important
            br2 = bounding_rect(vtext)
            self.rows.append([
                Cell(text, QRect(side_margin, ypos, br1.width(), br1.height()), color_role=QPalette.LinkVisited, is_overriden=prop.is_overriden),
                Cell(vtext, QRect(br1.right() + side_margin, ypos, br2.width(), br2.height()), swatch=prop.color, is_overriden=prop.is_overriden)
            ])
            ypos += max(br1.height(), br2.height()) + line_spacing

        self.height_hint = ypos + line_spacing
        self.width_hint = max(row[-1].rect.right() + side_margin for row in self.rows) if self.rows else 0

    def sizeHint(self):
        return QSize(self.width_hint, self.height_hint)

    def paintEvent(self, ev):
        p = QPainter(self)
        p.setClipRect(ev.rect())
        palette = self.palette()
        p.setPen(palette.color(QPalette.WindowText))
        if not self.is_first:
            p.drawLine(0, 0, self.width(), 0)
        try:
            for row in self.rows:
                for cell in row:
                    p.save()
                    try:
                        cell.draw(p, self.width(), palette)
                    finally:
                        p.restore()

        finally:
            p.end()

    def mouseMoveEvent(self, ev):
        if hasattr(self, 'hyperlink_rect'):
            pos = ev.pos()
            hovering = self.hyperlink_rect.contains(pos)
            self.update_hover(hovering)
            cursor = Qt.ArrowCursor
            for r, row in enumerate(self.rows):
                for cell in row:
                    if cell.rect.contains(pos):
                        cursor = Qt.PointingHandCursor if cell.rect is self.hyperlink_rect else Qt.IBeamCursor
                    if r == 0:
                        break
                if cursor != Qt.ArrowCursor:
                    break
            self.setCursor(cursor)
        return QWidget.mouseMoveEvent(self, ev)

    def mousePressEvent(self, ev):
        if hasattr(self, 'hyperlink_rect'):
            pos = ev.pos()
            if self.hyperlink_rect.contains(pos):
                self.emit_hyperlink_activated()
        return QWidget.mousePressEvent(self, ev)

    def emit_hyperlink_activated(self):
        dt = self.data['type']
        data = {'type':dt, 'name':self.html_name, 'syntax':'html'}
        if dt == 'inline':  # style attribute
#.........这里部分代码省略.........

 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)
             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())
             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 = db.field_for('title', book_id, default_value='')
                 metrics = painter.fontMetrics()
                 painter.drawText(rect, Qt.AlignCenter|Qt.TextSingleLine,
                                  metrics.elidedText(title, Qt.ElideRight, rect.width()))
         if marked:
             try:
                 p = self.marked_emblem
             except AttributeError:
                 p = self.marked_emblem = QPixmap(I('rating.png')).scaled(48, 48, transformMode=Qt.SmoothTransformation)
             drect = QRect(orect)
             drect.setLeft(drect.left() + right_adjust)
             drect.setRight(drect.left() + p.width())
             drect.setBottom(drect.bottom() - self.title_height)
             drect.setTop(drect.bottom() - p.height())
             painter.drawPixmap(drect, p)
         if on_device:
             try:
                 p = self.on_device_emblem
             except AttributeError:
                 p = self.on_device_emblem = QPixmap(I('ok.png')).scaled(48, 48, transformMode=Qt.SmoothTransformation)
             drect = QRect(orect)
             drect.setRight(drect.right() - right_adjust)
             drect.setBottom(drect.bottom() - self.title_height)
             drect.setTop(drect.bottom() - p.height() + 1)
             drect.setLeft(drect.right() - p.width() + 1)
             painter.drawPixmap(drect, p)
     finally:
         painter.restore()

 def boundingBox(self):
     r = QRect()
     for i in self.indicators:
         r = r.united( i.s.geometry())
     return r