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from PyQt5 import QtCore, QtGui, QtWidgets
import logging
log = logging.getLogger('AVP.Gui.PreviewWindow')
class PreviewWindow(QtWidgets.QLabel):
'''
Paints the preview QLabel in MainWindow and maintains the aspect ratio
when the window is resized.
'''
def __init__(self, parent, img):
super(PreviewWindow, self).__init__()
self.parent = parent
self.setFrameStyle(QtWidgets.QFrame.StyledPanel)
self.pixmap = QtGui.QPixmap(img)
def paintEvent(self, event):
size = self.size()
painter = QtGui.QPainter(self)
point = QtCore.QPoint(0, 0)
scaledPix = self.pixmap.scaled(
size,
QtCore.Qt.KeepAspectRatio,
transformMode=QtCore.Qt.SmoothTransformation)
# start painting the label from left upper corner
point.setX((size.width() - scaledPix.width())/2)
point.setY((size.height() - scaledPix.height())/2)
painter.drawPixmap(point, scaledPix)
def changePixmap(self, img):
self.pixmap = QtGui.QPixmap(img)
self.repaint()
def mousePressEvent(self, event):
if self.parent.encoding:
return
i = self.parent.window.listWidget_componentList.currentRow()
if i >= 0:
component = self.parent.core.selectedComponents[i]
if not hasattr(component, 'previewClickEvent'):
return
pos = (event.x(), event.y())
size = (self.width(), self.height())
butt = event.button()
log.info('Click event for #%s: %s button %s' % (
i, pos, butt))
component.previewClickEvent(
pos, size, butt
)
@QtCore.pyqtSlot(str)
def threadError(self, msg):
self.parent.showMessage(
msg=msg,
icon='Critical',
parent=self
)
log.info('%', repr(self.parent))
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