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117 lines
4.1 KiB
117 lines
4.1 KiB
#!/usr/bin/env python |
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# -*- coding: utf-8 -*- |
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# Copyright (C) 2018 Andy Stewart |
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# |
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# Author: Andy Stewart <lazycat.manatee@gmail.com> |
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# Maintainer: Andy Stewart <lazycat.manatee@gmail.com> |
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# |
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# This program is free software: you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation, either version 3 of the License, or |
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# any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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from PyQt5 import QtCore |
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from PyQt5.QtGui import QColor, QPixmap, QPainter |
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from PyQt5.QtCore import QRect, Qt |
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from PyQt5.QtWidgets import QWidget |
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import os |
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from core.buffer import Buffer |
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class ImageViewerBuffer(Buffer): |
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def __init__(self, buffer_id, url): |
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Buffer.__init__(self, buffer_id, url, False, QColor(0, 0, 0, 255)) |
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self.add_widget(ImageViewerWidget(url, QColor(0, 0, 0, 255))) |
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self.buffer_widget.render_image.connect(self.change_title) |
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class ImageViewerWidget(QWidget): |
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render_image = QtCore.pyqtSignal(str) |
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def __init__(self, image_path, background_color): |
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QWidget.__init__(self) |
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self.background_color = background_color |
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self.load_image(image_path) |
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def load_image(self, image_path): |
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self.parent_dir = os.path.abspath(os.path.join(image_path, os.pardir)) |
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self.image_name = os.path.basename(image_path) |
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self.qimage = QPixmap(image_path) |
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self.update() |
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self.render_image.emit(self.image_name) |
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def load_next_image(self): |
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files = [f for f in os.listdir(self.parent_dir) if os.path.isfile(os.path.join(self.parent_dir, f))] |
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images = list(filter(lambda f: f.endswith(".jpg") or f.endswith(".png"), files)) |
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if self.image_name in images: |
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image_index = images.index(self.image_name) |
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if image_index == len(images) - 1: |
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image_index = 0 |
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else: |
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image_index += 1 |
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self.load_image(os.path.join(self.parent_dir, images[image_index])) |
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def load_prev_image(self): |
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files = [f for f in os.listdir(self.parent_dir) if os.path.isfile(os.path.join(self.parent_dir, f))] |
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images = list(filter(lambda f: f.endswith(".jpg") or f.endswith(".png"), files)) |
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if self.image_name in images: |
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image_index = images.index(self.image_name) |
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if image_index == 0: |
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image_index = len(images) - 1 |
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else: |
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image_index -= 1 |
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self.load_image(os.path.join(self.parent_dir, images[image_index])) |
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def paintEvent(self, event): |
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painter = QPainter(self) |
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painter.setBrush(self.background_color) |
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painter.drawRect(0, 0, self.rect().width(), self.rect().height()) |
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width_scale = self.rect().width() * 1.0 / self.qimage.width() |
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height_scale = self.rect().height() * 1.0 / self.qimage.height() |
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image_scale = 1.0 |
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if width_scale < height_scale: |
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image_scale = width_scale |
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else: |
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image_scale = height_scale |
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render_width = image_scale * self.qimage.width() |
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render_height = image_scale * self.qimage.height() |
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render_x = (self.rect().width() - render_width) / 2 |
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render_y = (self.rect().height() - render_height) / 2 |
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painter.drawPixmap(QRect(render_x, render_y, render_width, render_height), self.qimage) |
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painter.end() |
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def keyPressEvent(self, event): |
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if event.key() == Qt.Key_J: |
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self.load_next_image() |
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elif event.key() == Qt.Key_K: |
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self.load_prev_image() |
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if __name__ == "__main__": |
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from PyQt5.QtWidgets import QApplication |
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import sys |
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import signal |
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app = QApplication(sys.argv) |
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test = ImageViewerWidget("/home/andy/rms/1.jpg", QColor(0, 0, 0, 255)) |
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test.show() |
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signal.signal(signal.SIGINT, signal.SIG_DFL) |
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sys.exit(app.exec_())
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