7.5第一次更新

在PNG基礎上追加jpg，jpeg，bmp格式（真的需要其他格式的水印嗎...）
現在上傳完的水印圖片會在按鈕內顯示水印的預覽圖啦！
現在選擇完圖片也會顯示生成了多少張圖片和生成的路徑，并且添加了一個小進度條

以下是代碼

import os
import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QWidget, QPushButton, QFileDialog, QGridLayout, QSizePolicy, QLabel, QProgressBar
from PyQt5.QtGui import QIcon, QPixmap
from PyQt5.QtCore import Qt, QSize
from PIL import Image
 
class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("水印工具2.0")
        self.setWindowIcon(QIcon("push.ico"))
 
        self.central_widget = QWidget()
        self.setCentralWidget(self.central_widget)
        self.layout = QGridLayout(self.central_widget)
        self.layout.setSpacing(0)
 
        self.watermark_path = ""
        self.image_paths = []
        self.output_folder = ""
 
        self.watermark_button = QPushButton("選擇水印圖片")
        self.watermark_button.clicked.connect(self.select_watermark)
        self.layout.addWidget(self.watermark_button, 2,0)
 
        self.image_button = QPushButton("選擇圖片")
        self.image_button.clicked.connect(self.select_images)
        self.layout.addWidget(self.image_button, 2, 1)
 
        self.folder_label = QLabel()
        self.layout.addWidget(self.folder_label, 3, 0)
 
        self.folder_button = QPushButton("選擇輸出文件夾")
        self.folder_button.clicked.connect(self.select_output_folder)
        self.layout.addWidget(self.folder_button, 4, 0)
 
        self.start_button = QPushButton("開始添加水印")
        self.start_button.clicked.connect(self.start_watermarking)
        self.layout.addWidget(self.start_button, 4, 1)
 
        self.progress_bar = QProgressBar()
        self.layout.addWidget(self.progress_bar, 5, 0, 1, 2)
 
        self.central_widget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
        self.watermark_button.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
        self.image_button.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
        self.folder_button.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
        self.start_button.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
 
        self.central_widget.setLayout(self.layout)
        self.setMinimumSize(500, 500)
        self.show()
 
    def select_watermark(self):
        file_dialog = QFileDialog()
        file_dialog.setNameFilter("Image files (*.png *.jpg *.jpeg *.bmp)")
        if file_dialog.exec_():
            self.watermark_path = file_dialog.selectedFiles()[0]
            pixmap = QPixmap(self.watermark_path)
            pixmap = pixmap.scaled(self.watermark_button.size(), Qt.KeepAspectRatio, Qt.SmoothTransformation)
            scaled_path = os.path.join(os.path.dirname(self.watermark_path), "scaled_watermark.png")
            pixmap.save(scaled_path)
            scaled_path = scaled_path.replace('\\', '/')  # 將路徑中的反斜杠替換為正斜杠
            self.watermark_button.setStyleSheet(f"QPushButton {{background-image: url({scaled_path}); background-position: center; background-repeat: no-repeat; background-attachment: fixed}}")
 
    def select_images(self):
        file_dialog = QFileDialog()
        file_dialog.setNameFilter("Image files (*.png *.jpg *.jpeg)")
        file_dialog.setFileMode(QFileDialog.ExistingFiles)
        if file_dialog.exec_():
            self.image_paths = file_dialog.selectedFiles()
 
            # 在按鈕上顯示選擇的文件數量
            self.image_button.setText(f"選擇圖片 ({len(self.image_paths)})")
 
            pixmap = QPixmap(self.image_paths[0])
            pixmap = pixmap.scaled(self.image_button.size(), Qt.KeepAspectRatio, Qt.SmoothTransformation)
            pixmap.save("scaled_image.png")
            self.image_button.setStyleSheet("QPushButton {background-image: url(" + os.path.abspath("scaled_image.png") + "); background-position: center; background-repeat: no-repeat; background-attachment: fixed}")
 
    def select_output_folder(self):
        file_dialog = QFileDialog()
        file_dialog.setFileMode(QFileDialog.DirectoryOnly)
        if file_dialog.exec_():
            self.output_folder = file_dialog.selectedFiles()[0]
            self.folder_button.setText("輸出文件夾: " + self.output_folder)
 
    def start_watermarking(self):
        self.progress_bar.setMaximum(len(self.image_paths))
 
        for index, image_path in enumerate(self.image_paths):
            image = Image.open(image_path)
            watermark = Image.open(self.watermark_path)
            watermark = watermark.resize(image.size, Image.ANTIALIAS)
            image.paste(watermark, (0,0), watermark)
            image.save(os.path.join(self.output_folder, os.path.basename(image_path)))
            self.progress_bar.setValue(index + 1)
 
if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    app.setWindowIcon(QIcon("ppush.ico"))  # 設置應用程序的圖標，將顯示在任務欄
    sys.exit(app.exec_())