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from ....core.qt import QtGui, QtCore, Qt
from ....view.controls import editors
from ....view.proxy import ValueLoading
from .filedelegate import FileDelegate
[docs]class ImageDelegate(FileDelegate):
"""Delegate for :class:`camelot.types.Image` fields. Expects values of type
:class:`camelot.core.files.storage.StoredImage`.
.. image:: /_static/image.png
"""
editor = editors.ImageEditor
margin = 2
def paint(self, painter, option, index):
painter.save()
self.drawBackground(painter, option, index)
data = index.data(Qt.DisplayRole)
if data not in (None, ValueLoading):
pixmap = QtGui.QPixmap(index.data(Qt.DisplayRole))
if pixmap.width() > 0 and pixmap.height() > 0:
rect = option.rect
w_margin = max(0, rect.width() - pixmap.width())/2 + self.margin
h_margin = max(0, rect.height()- pixmap.height())/2 + self.margin
rect = QtCore.QRect(rect.left() + w_margin,
rect.top() + h_margin ,
rect.width() - w_margin * 2,
rect.height() - h_margin * 2 )
painter.drawPixmap( rect, pixmap )
pen = QtGui.QPen(Qt.darkGray)
pen.setWidth(3)
painter.setPen(pen)
painter.drawRect(rect)
painter.restore()