基于Python实现图片浏览器的应用程序

import os
import wx
class ImageFrame(wx.Frame):
    def __init__(self, parent, title):
        super(ImageFrame, self).__init__(parent, title=title, size=(800, 600))
        self.panel = wx.Panel(self)
        self.sizer = wx.GridSizer(rows=0, cols=3, hgap=5, vgap=5)
        self.panel.SetSizer(self.sizer)
        self.file_picker = wx.DirPickerCtrl(self.panel, style=wx.DIRP_USE_TEXTCTRL)
        self.file_picker.Bind(wx.EVT_DIRPICKER_CHANGED, self.on_folder_selected)
        self.sizer.Add(self.file_picker, 0, wx.EXPAND|wx.ALL, 5)
        self.image_panels = []
        self.Show()
    def on_folder_selected(self, event):
        selected_folder = self.file_picker.GetPath()
        image_files = self.get_image_files(selected_folder)
        if image_files:
            self.display_images(image_files)
    def get_image_files(self, folder):
        image_files = []
        for root, dirs, files in os.walk(folder):
            for file in files:
                if file.lower().endswith(('.jpg', '.jpeg', '.png', '.gif')):
                    image_files.append(os.path.join(root, file))
        return image_files
    def display_images(self, image_files):
        # Clear existing image panels
        for panel in self.image_panels:
            panel.Destroy()
        self.image_panels = []
        num_images = len(image_files)
        if num_images == 0:
            return
        num_rows = (num_images - 1) // 3 + 1
        self.sizer.Clear(True)
        self.sizer.SetCols(3)
        self.sizer.SetRows(num_rows)
        for image_file in image_files:
            image_panel = wx.Panel(self.panel)
            image_panel.SetBackgroundColour(wx.WHITE)
            image = wx.Image(image_file, wx.BITMAP_TYPE_ANY)
            image_bitmap = self.scale_image(image)
            image_ctrl = wx.StaticBitmap(image_panel, bitmap=image_bitmap)
            image_sizer = wx.BoxSizer(wx.HORIZONTAL)
            image_sizer.Add(image_ctrl, 1, wx.EXPAND|wx.ALL, 5)
            image_panel.SetSizer(image_sizer)
            self.sizer.Add(image_panel, 0, wx.EXPAND|wx.ALL, 5)
            self.image_panels.append(image_panel)
        self.panel.Layout()
        self.Refresh()
        self.Update()
    def scale_image(self, image):
        max_width = 200
        max_height = 200
        width = image.GetWidth()
        height = image.GetHeight()
        if width > max_width or height > max_height:
            if width > height:
                new_width = max_width
                new_height = int(max_width * height / width)
            else:
                new_height = max_height
                new_width = int(max_height * width / height)
            image = image.Scale(new_width, new_height, wx.IMAGE_QUALITY_HIGH)
        return image.ConvertToBitmap()
if __name__ == '__main__':
    app = wx.App()
    frame = ImageFrame(None, title="Image Viewer")
    app.MainLoop()