9
Help us understand the problem. What are the problem?

More than 5 years have passed since last update.

posted at

Pyside の透過PNG表示のサンプル

Pyside のウィンドウに透過PNGの画像ファイルを貼り付けて、非矩形のウィンドウを作成するサンプルです。

ImageViewer.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import os
from PySide import QtCore, QtGui


class ImageViewer(QtGui.QWidget):
    def __init__(self):
        super(ImageViewer, self).__init__()
        self.initUI()

    def initUI(self):
        '''
        ユーザーインターフェースの初期化
        '''
        # 枠なしWindow
        self.setWindowFlags(QtCore.Qt.FramelessWindowHint)

        #半透明
        self.setWindowOpacity(0.8)

        self.setWindowTitle('ImageViewer')

        self.imageLabel = QtGui.QLabel()
        self.imageLabel.setBackgroundRole(QtGui.QPalette.Base)
        self.imageLabel.setSizePolicy(
            QtGui.QSizePolicy.Fixed, QtGui.QSizePolicy.Fixed)

        self.imageLabel.setScaledContents(False)

        self.filenameLabel = QtGui.QLabel()

        self.imageLabel.setToolTip("コンテキストメニューで操作してください。")

        # Debug用
        #self.button = QtGui.QPushButton('open')
        #self.button.clicked.connect(self.open)

        #self.quit = QtGui.QPushButton('quit')
        #self.quit.clicked.connect(self.close)

        layout = QtGui.QVBoxLayout()
        layout.setContentsMargins(0, 0, 0, 0)
        layout.addWidget(self.imageLabel)

        # Debug用
        #layout.addWidget(self.filenameLabel)
        #layout.addWidget(self.button)
        #layout.addWidget(self.quit)

        self.setLayout(layout)
        self.setGeometry(50, 50, 250, 250)

    def contextMenuEvent(self, event):
        '''
        コンテキストメニュー
        '''
        menu = QtGui.QMenu(self)
        menu.addAction('Open', self.open)
        menu.addAction('Quit', self.close)
        menu.exec_(event.globalPos())

    def open(self):
        (path, ftype) = QtGui.QFileDialog.getOpenFileName(self, "Open File")
        image = QtGui.QImage(path)
        pixmap = QtGui.QPixmap.fromImage(image)

        self.filenameLabel.setText(os.path.basename(path))

        self.imageLabel.setPixmap(pixmap)
        self.resize(image.size())
        mask = QtGui.QPixmap.fromImage(image.createAlphaMask())
        self.setMask(mask)


def main():
    app = QtGui.QApplication(sys.argv)

    iv = ImageViewer()
    iv.show()
    sys.exit(app.exec_())

if __name__ == '__main__':
    import sys
    main()


# EOF


Windows7 での実行例

元のPNGファイルの透過部分が完全に透明処理されている

pyside-imageview-screenshot.PNG

Why not register and get more from Qiita?
  1. We will deliver articles that match you
    By following users and tags, you can catch up information on technical fields that you are interested in as a whole
  2. you can read useful information later efficiently
    By "stocking" the articles you like, you can search right away
Sign upLogin
9
Help us understand the problem. What are the problem?