7.5第一次更新

在PNG基礎(chǔ)上追加jpg，jpeg，bmp格式（真的需要其他格式的水印嗎...）
現(xiàn)在上傳完的水印圖片會(huì)在按鈕內(nèi)顯示水印的預(yù)覽圖啦！
現(xiàn)在選擇完圖片也會(huì)顯示生成了多少?gòu)垐D片和生成的路徑，并且添加了一個(gè)小進(jìn)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(kāi)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(shù)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(shè)置應(yīng)用程序的圖標(biāo)，將顯示在任務(wù)欄
    sys.exit(app.exec_())