コード例 #1
0
    def __init__(self, file_path, make_opengl_textures=True):
        image_reader = QImageReader(file_path)
        self.is_animated = image_reader.supportsAnimation()
        if self.is_animated:
            self.num_frames = image_reader.imageCount()
            # -1 means loop infinitely, 0 means no loop, > 0 is finite # of loops
            self.loop_count = image_reader.loopCount()
            self.loops_remaining = 0
            self.frames = []
            self.delays = []
            while image_reader.currentImageNumber() < image_reader.imageCount() - 1:
                self.frames.append(image_reader.read())
                self.delays.append(image_reader.nextImageDelay())

            if make_opengl_textures:
                self.open_gl_textures = [QOpenGLTexture(this_frame.mirrored()) for this_frame in self.frames]
                self.made_opengl_textures = True

            self.frames_and_delays = zip(self.frames, self.delays)

            self.current_frame = 0
            self.animating = False
        else:
            self.image = image_reader.read()
            assert isinstance(self.image, QImage)
            if make_opengl_textures:
                self.open_gl_texture = QOpenGLTexture(self.image.mirrored())
                self.made_opengl_textures = True
コード例 #2
0
    def load(self, source):
        """Load anything that QImageReader or QMovie constructors accept"""

        # Use QImageReader to identify animated GIFs for separate handling
        # (Thanks to https://stackoverflow.com/a/20674469/435253 for this)
        image_reader = QImageReader(source)
        from PyQt5.QtGui import QImageIOHandler
        if image_reader.supportsAnimation() and image_reader.imageCount() > 1:
            movie = QMovie(source)

            # Calculate the aspect ratio and adjust the widget size
            movie.jumpToFrame(0)
            movie_size = movie.currentImage().size()
            self.movie_aspect = movie_size.width() / movie_size.height()
            self.resizeEvent()

            self.label.setMovie(movie)
            movie.start()

            # Free memory if the previous image was non-animated
            self.orig_pixmap = None
        else:
            self.orig_pixmap = QPixmap(image_reader.read())
            self.label.setPixmap(self.orig_pixmap)

            # Fail quickly if our violated invariants result in stale
            # aspect-ratio information getting reused
            self.movie_aspect = None

        # Keep the image from preventing downscaling
        self.setMinimumSize(1, 1)
コード例 #3
0
ファイル: image_widget.py プロジェクト: CoBrALab/PyQC
    def load(self, source, adaptSize=True):
        """Load anything that QImageReader or QMovie constructors accept
            adaptSize=True: Initial image size to fit container
            adaptSize=False: Set container's size the same as image
        """

        # Use QImageReader to identify animated GIFs for separate handling
        # (Thanks to https://stackoverflow.com/a/20674469/435253 for this)
        size = QSize(self.width(), self.height())
        image_reader = QImageReader(source)
        if image_reader.supportsAnimation() and image_reader.imageCount() > 1:
            # Set content as Movie
            self.content = SaneQMovie(source)
            # Adjust the widget size
            if adaptSize:
                self.content.adaptScale(size)
            else:
                # Resizing container will trigger resizeEvent()
                self.resize(self.content.size())
            # Start Movie replay
            self.setMovie(self.content)
            self.content.start()

        else:
            # Set content as Image
            self.content = SaneQPixmap(image_reader.read())
            # Adjust the widget size
            if adaptSize:
                self.setPixmap(self.content.adaptScale(size))
            else:
                # Resizing container will trigger resizeEvent()
                self.resize(self.content.size())
                self.setPixmap(self.content)

        # Keep the image from preventing downscaling
        self.setMinimumSize(1, 1)