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88 lines
2.7 KiB
Python
88 lines
2.7 KiB
Python
# This file is part of BeeRef.
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#
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# BeeRef 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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# (at your option) any later version.
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#
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# BeeRef 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 BeeRef. If not, see <https://www.gnu.org/licenses/>.
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"""Classes for items that are added to the scene by the user (images,
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text).
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"""
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import logging
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from PyQt6 import QtCore, QtGui, QtWidgets
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from beeref.selection import SelectableMixin
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logger = logging.getLogger('BeeRef')
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class BeePixmapItem(SelectableMixin, QtWidgets.QGraphicsPixmapItem):
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"""Class for images added by the user."""
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def __init__(self, image, filename=None):
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super().__init__(QtGui.QPixmap.fromImage(image))
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self.save_id = None
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self.filename = filename
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logger.debug(f'Initialized {self}')
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self.init_selectable()
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def __str__(self):
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return (f'Image "{self.filename}" {self.width} x {self.height}')
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def set_pos_center(self, pos):
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"""Sets the position using the item's center as the origin point."""
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self.setPos(pos - self.center_scene_coords)
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@property
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def width(self):
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return self.pixmap().size().width()
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@property
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def height(self):
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return self.pixmap().size().height()
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def pixmap_to_bytes(self):
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"""Convert the pixmap data to PNG bytestring."""
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barray = QtCore.QByteArray()
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buffer = QtCore.QBuffer(barray)
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buffer.open(QtCore.QIODevice.OpenMode.WriteOnly)
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img = self.pixmap().toImage()
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img.save(buffer, 'PNG')
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return barray.data()
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def pixmap_from_bytes(self, data):
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"""Set image pimap from a bytestring."""
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pixmap = QtGui.QPixmap()
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pixmap.loadFromData(data)
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self.setPixmap(pixmap)
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def paint(self, painter, option, widget):
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painter.drawPixmap(0, 0, self.pixmap())
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self.paint_selectable(painter, option, widget)
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def has_selection_outline(self):
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return self.isSelected()
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def has_selection_handles(self):
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return self.isSelected() and self.scene().has_single_selection()
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def selection_action_items(self):
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"""The items affected by selection actions like scaling and rotating.
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"""
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return [self]
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def on_selected_change(self, value):
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if(value and self.scene() and not self.scene().has_selection()):
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self.bring_to_front()
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