Python Qt.SmoothTransformation方法代码示例

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def _paint_frame(self, event):
        if self.bgimage:
            pixmap = self._build_pixmap(self.bgimage)
            # Check we need to resize the bgimage
            if self.bgsize:
                bgsize = self.bgsize
                if self.bgsize == 'fit':
                    bgsize = self.size()
                pixmap = pixmap.scaled(bgsize, Qt.KeepAspectRatio, Qt.SmoothTransformation)
            # Calculate the x,y position
            x,y = self.bgpos
            if self.bgpos:
                if x == 'left': x = 0
                elif x == 'center': x = (self.width() / 2) - (pixmap.width() / 2)
                elif x == 'right': x = self.width() - pixmap.width()
                if y == 'top': y = 0
                elif y == 'center': y = (self.height() / 2) - (pixmap.height() / 2)
                elif y == 'bottom': y = self.height() - pixmap.height()
            # Draw the pixmap
            painter = QtGui.QPainter(self)
            painter.setOpacity(self.bgopacity)
            painter.drawPixmap(int(x), int(y), pixmap) 

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def set_status(self, raw, exist=None):
        item = QLabel()
        item.setAlignment(Qt.AlignCenter)

        if exist is 0:
            icon = QPixmap(QUEUE_ICON).scaled(20, 20, Qt.KeepAspectRatio,
                                              Qt.SmoothTransformation)
            item.setPixmap(icon)
            item.setToolTip('Waiting in the download queue...')

        if exist is 1:
            icon = QPixmap(CHECK_ICON).scaled(20, 20, Qt.KeepAspectRatio,
                                              Qt.SmoothTransformation)
            item.setPixmap(icon)
            item.setToolTip('All the features are downloaded...')

        if exist is 2:
            item = QPushButton(self)
            item.setToolTip('Download')
            item.setIcon(QIcon(DOWNLOAD_ICON))
            item.clicked.connect(self.download_clicked)

        self.setCellWidget(raw, 0, item) 

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def _draw_pixmap(self, painter, draw_width, draw_height, scrolled):
        # scale pixmap
        scaled_pixmap = self._pixmap.scaledToWidth(
            draw_width,
            mode=Qt.SmoothTransformation)
        pixmap_size = scaled_pixmap.size()

        # draw the center part of the pixmap on available rect
        painter.save()
        brush = QBrush(scaled_pixmap)
        painter.setBrush(brush)
        # note: in practice, most of the time, we can't show the
        # whole artist pixmap, as a result, the artist head will be cut,
        # which causes bad visual effect. So we render the top-center part
        # of the pixmap here.
        y = (pixmap_size.height() - draw_height) // 3
        painter.translate(0, - y - scrolled)
        rect = QRect(0, y, draw_width, draw_height)
        painter.drawRect(rect)
        painter.restore() 

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def paintEvent(self, event):
        ancho, altura = self.width(), self.height()
        icono = self.icono.scaled(ancho, altura, Qt.KeepAspectRatio, Qt.SmoothTransformation)

        pintor = QPainter()
        
        pintor.begin(self)
        pintor.setRenderHint(QPainter.Antialiasing, True)
        pintor.setPen(Qt.NoPen)
        pintor.drawPixmap(0, 0, icono, 0, 0, 0, 0)
        pintor.setPen(Qt.white)
        pintor.drawText(event.rect(), Qt.AlignCenter, self.etiqueta)
        pintor.setPen(Qt.NoPen)
        pintor.setBrush(self.opacidad)
        pintor.drawEllipse(0, 0, ancho, altura)
        pintor.end()

        self.setMask(icono.mask()) 

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def initUI(self):
        label = QLabel(self)
        label.setPixmap(QPixmap("Imagenes/siacle.jpg").scaled(450, 450, Qt.KeepAspectRatio,
                                                              Qt.SmoothTransformation))
        label.move(0, 0)

        botonCerrar = QPushButton("Cerrar", self)
        botonCerrar.setFixedSize(430, 32)
        botonCerrar.move(10, 457)

      # ========================= EVENTO =========================

        botonCerrar.clicked.connect(self.close)


# ========================= CLASE Acerca =========================== 

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def initUI(self):

      # ==================== WIDGET QLABEL =======================
        
        self.labelImagen = QLabelClickable(self)
        self.labelImagen.setGeometry(15, 15, 118, 130)
        self.labelImagen.setToolTip("Imagen")
        self.labelImagen.setCursor(Qt.PointingHandCursor)

        self.labelImagen.setStyleSheet("QLabel {background-color: white; border: 1px solid "
                                       "#01DFD7; border-radius: 5px;}")

        self.pixmapImagen = QPixmap("Qt.png").scaled(112, 128, Qt.KeepAspectRatio,
                                                     Qt.SmoothTransformation)
        self.labelImagen.setPixmap(self.pixmapImagen)
        self.labelImagen.setAlignment(Qt.AlignCenter)

      # ===================== EVENTO QLABEL ======================

      # Llamar función al hacer clic o doble clic sobre el label
        self.labelImagen.clicked.connect(self.Clic)

  # ======================= FUNCIONES ============================ 

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def doClockwise(self):
        # 顺时针45度
        image = QImage(self.srcImage.size(),
                       QImage.Format_ARGB32_Premultiplied)
        painter = QPainter()
        painter.begin(image)
        # 以图片中心为原点
        hw = self.srcImage.width() / 2
        hh = self.srcImage.height() / 2
        painter.translate(hw, hh)
        painter.rotate(45)  # 旋转45度
        painter.drawImage(-hw, -hh, self.srcImage)  # 把图片绘制上去
        painter.end()
        self.srcImage = image  # 替换
        self.imageLabel.setPixmap(QPixmap.fromImage(self.srcImage))

#         # 下面这个旋转方法针对90度的倍数,否则图片会变大
#         trans = QTransform()
#         trans.rotate(90)
#         self.srcImage = self.srcImage.transformed(
#             trans, Qt.SmoothTransformation)
#         self.imageLabel.setPixmap(QPixmap.fromImage(self.srcImage)) 

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def doAnticlockwise(self):
        # 逆时针45度
        image = QImage(self.srcImage.size(),
                       QImage.Format_ARGB32_Premultiplied)
        painter = QPainter()
        painter.begin(image)
        # 以图片中心为原点
        hw = self.srcImage.width() / 2
        hh = self.srcImage.height() / 2
        painter.translate(hw, hh)
        painter.rotate(-45)  # 旋转-45度
        painter.drawImage(-hw, -hh, self.srcImage)  # 把图片绘制上去
        painter.end()
        self.srcImage = image  # 替换
        self.imageLabel.setPixmap(QPixmap.fromImage(self.srcImage))

#         # 下面这个旋转方法针对90度的倍数,否则图片会变大
#         trans = QTransform()
#         trans.rotate(90)
#         self.srcImage = self.srcImage.transformed(
#             trans, Qt.SmoothTransformation)
#         self.imageLabel.setPixmap(QPixmap.fromImage(self.srcImage)) 

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def __init__(self, *args, **kwargs):
        super(Window, self).__init__(*args, **kwargs)
        layout = QVBoxLayout(self)
        self.imgLabel = QLabel(self)
        self.coldSlider = QSlider(Qt.Horizontal, self)
        self.coldSlider.valueChanged.connect(self.doChange)
        self.coldSlider.setRange(0, 255)
        layout.addWidget(self.imgLabel)
        layout.addWidget(self.coldSlider)

        # 加载图片
        self.srcImg = QImage('src.jpg')
        self.imgLabel.setPixmap(QPixmap.fromImage(self.srcImg).scaledToWidth(800, Qt.SmoothTransformation))
        # DLL库
        self.dll = CDLL('Cold.dll')
        print(self.dll) 

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def paint(self, painter, option, index):
        column = index.column()
        if column == 1:
            pixmap = None
            status = index.data(Qt.UserRole)
            if status == MagicFolderChecker.LOADING:
                self.waiting_movie.setPaused(False)
                pixmap = self.waiting_movie.currentPixmap().scaled(
                    20, 20, Qt.KeepAspectRatio, Qt.SmoothTransformation
                )
            elif status in (
                MagicFolderChecker.SYNCING,
                MagicFolderChecker.SCANNING,
            ):
                self.sync_movie.setPaused(False)
                pixmap = self.sync_movie.currentPixmap().scaled(
                    20, 20, Qt.KeepAspectRatio, Qt.SmoothTransformation
                )
            if pixmap:
                point = option.rect.topLeft()
                painter.drawPixmap(QPoint(point.x(), point.y() + 5), pixmap)
                option.rect = option.rect.translated(pixmap.width(), 0)
        super(Delegate, self).paint(painter, option, index) 

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def resizeEvent(self, event):
        # Resize images only if the width of the scroll area
        # is shorter than that of images
        for i, lbl in enumerate(self.lbl_img_list):
            w = self.width() - QStyle.PM_ScrollBarExtent
            if w < self.pixmap_list[i].width():
                lbl.setPixmap(
                        self.pixmap_list[i].scaledToWidth(
                            w, Qt.SmoothTransformation))
            else:
                lbl.setPixmap(
                        self.pixmap_list[i].scaledToWidth(
                            self.pixmap_list[i].width()))
        return super().resizeEvent(event) 

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def update_preview(self):
        if not self._preview_pixmap:
            return

        scaled = self._preview_pixmap.scaled(
            self._ui.lblPreview.width(),
            self._ui.lblPreview.height(),
            Qt.KeepAspectRatio,
            Qt.SmoothTransformation,
        )
        self._ui.lblPreview.setPixmap(scaled) 

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def paintEvent(self, e):
        """
        draw pixmap with border radius

        We found two way to draw pixmap with border radius,
        one is as follow, the other way is using bitmap mask,
        but in our practice, the mask way has poor render effects
        """
        if self._pixmap is None:
            return
        radius = 3
        painter = QPainter(self)
        painter.setRenderHint(QPainter.Antialiasing)
        painter.setRenderHint(QPainter.SmoothPixmapTransform)
        scaled_pixmap = self._pixmap.scaledToWidth(
            self.width(),
            mode=Qt.SmoothTransformation
        )
        size = scaled_pixmap.size()
        brush = QBrush(scaled_pixmap)
        painter.setBrush(brush)
        painter.setPen(Qt.NoPen)
        y = (size.height() - self.height()) // 2
        painter.save()
        painter.translate(0, -y)
        rect = QRect(0, y, self.width(), self.height())
        painter.drawRoundedRect(rect, radius, radius)
        painter.restore()
        painter.end() 

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def set_cover_pixmap(self, pixmap):
        self._cover_label.show()
        self._cover_label.setPixmap(
            pixmap.scaledToWidth(self._cover_label.width(),
                                 mode=Qt.SmoothTransformation)) 

# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]
# 或者: from PyQt5.QtCore.Qt import SmoothTransformation [as 别名]
def seleccionarImagen(self):
        imagen, extension = QFileDialog.getOpenFileName(self, "Seleccionar imagen", getcwd(),
                                                        "Archivos de imagen (*.png *.jpg)",
                                                        options=QFileDialog.Options())
          
        if imagen:
            # Adaptar imagen
            pixmapImagen = QPixmap(imagen).scaled(166, 178, Qt.KeepAspectRatio,
                                                  Qt.SmoothTransformation)

            # Mostrar imagen
            self.labelImagen.setPixmap(pixmapImagen)