Python FigureCanvasTkAgg.bind方法代码示例

# 需要导入模块: from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg [as 别名]
# 或者: from matplotlib.backends.backend_tkagg.FigureCanvasTkAgg import bind [as 别名]
class ImageSession:
    def __init__(self, master, filename, hdu=0):
        # filename should be a string!
        self.filename = filename
        self.hdu = hdu
        
        # The master window?
        self.master = master
        
        if not os.path.exists(self.filename):
            tkMessageBox.showerror("File not found", "File {0} doesn't exist!".format(file))
            return
        
        self.openFile()
        self.createWindow()
    
    def openFile(self):
        # Try to open the file and read in the data from HDU
        try:
            hdulist = pf.open(self.filename)
            try:
                if hdulist[self.hdu].header['XTENSION'] == 'BINTABLE':
                    tkMessageBox.showerror("HDU Error", "The HDU {0} is not an ImageHDU!".format(self.hdu))
                    raise util.NotAnImageHDUError("The HDU {0} is not an ImageHDU!".format(self.hdu))
                # HDU is a table -- throw an error!
            except KeyError:
                # HDU is an image, carry on!
                pass
            
            self.rawData = hdulist[self.hdu].data
            self.rawData.shape
        except IOError:
            tkMessageBox.showerror("FITS file error ", "File {0} does not appear to be a valid FITS file!".format(self.filename))
            raise util.ImageSessionError("File {0} does not appear to be a valid FITS file!".format(self.filename))
        except AttributeError:
            tkMessageBox.showerror("FITS file error ", "File {0} does not appear to have data in HDU 0.".format(self.filename))
            raise util.ImageSessionError("File {0} does not appear to have data in HDU 0.".format(self.filename))
    
    def createWindow(self):
        # Create the actual window to draw the image and scale controls
        self.ImageWindow = Tk.Toplevel(self.master)
        self.ImageWindow.title(self.filename)
        #self.ImageWindow.protocol("WM_DELETE_WINDOW", self.closeImage)
        
        # TODO: THIS SHOULD DETECT SCREEN RESOLUTION
        screenSize = (1050/1.5, 1680/1.5)
        if self.rawData.shape[0] > screenSize[0] and self.rawData.shape[1] > screenSize[1]:
            factor1 = screenSize[0] / self.rawData.shape[0]
            factor2 = screenSize[1] / self.rawData.shape[1]
            self.zoomFactor = min([factor1, factor2])
        elif self.rawData.shape[1] > screenSize[0]:
            self.zoomFactor = screenSize[0]/ self.rawData.shape[1]
        elif self.rawData.shape[0] > screenSize[1]:
            self.zoomFactor = screenSize[1] / self.rawData.shape[0]
        else:
            self.zoomFactor = 1.
        
        # Create the image tools
        scaleTypeLabel = Tk.Label(self.ImageWindow, text="Scaling: ")
        scaleTypeLabel.grid(row=0, column=0)
        self.scalingName = Tk.StringVar()
        self.scalingName.set("arcsinh")
        self.scalingOption = Tk.OptionMenu(self.ImageWindow, self.scalingName, "arcsinh","linear","sqrt", command=self.setRescaler)
        self.scalingOption.grid(row=0, column=1)
        
        rescaleLabel = Tk.Label(self.ImageWindow, text="Rescale: ")
        rescaleLabel.grid(row=1, column=0)
        self.scaleValue = Tk.Scale(self.ImageWindow, from_=-4, to=6, resolution=0.05, orient=Tk.HORIZONTAL, showvalue=1, length=300)
        self.scaleValue.set(1.0)
        self.scaleValue.grid(row=1, column=1)
        
        minLabel = Tk.Label(self.ImageWindow, text="Min Pixel Value: ")
        minLabel.grid(row=2, column=0)
        self.minValue = Tk.Scale(self.ImageWindow, resolution=0.05, orient=Tk.HORIZONTAL, showvalue=1, length=300)
        self.minValue.set(1.0)
        self.minValue.grid(row=2, column=1)
        
        maxLabel = Tk.Label(self.ImageWindow, text="Max Pixel Value: ")
        maxLabel.grid(row=3, column=0)
        self.maxValue = Tk.Scale(self.ImageWindow, resolution=0.05, orient=Tk.HORIZONTAL, showvalue=1, length=300)
        self.maxValue.set(1.0)
        self.maxValue.grid(row=3, column=1)
        
        # Set the min/max slider boundaries
        self.minValue.config(from_=self.rawData.min(), to=self.rawData.max())
        self.minValue.set(self.rawData.min())
        self.maxValue.config(from_=self.rawData.min(), to=self.rawData.max())
        self.maxValue.set(self.rawData.max())
        
        # Set the default rescaler
        self.rescaler = util.arcsinhStretch
        
        self.scaleImage()
        self.drawImage()
        
        # Bind the sliders to the scaleImage() method
        self.scaleValue.bind("<ButtonRelease-1>", self.redraw)
        self.minValue.bind("<ButtonRelease-1>", self.redraw)
        self.maxValue.bind("<ButtonRelease-1>", self.redraw)
        self.scalingOption.bind("<ButtonRelease-1>", self.redraw)
#.........这里部分代码省略.........