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from PyQt5.QtCore import Qt
from PyQt5.QtGui import QBrush
from PyQt5.QtWidgets import QWidget, QGraphicsScene, QGraphicsView, QHBoxLayout
from .sizes import paperSizes
class canvas(QWidget):
def __init__(self, parent=None, size= "A0", ppi= 72):
super(canvas, self).__init__(parent)
self._ppi = ppi
self._canvasSize = size
self.resize(1280, 720)
self.painter = QGraphicsScene(0, 0, *paperSizes[self.canvasSize][self.ppi])
self.painter.setBackgroundBrush(QBrush(Qt.white))
self.view = QGraphicsView(self.painter)
self.layout = QHBoxLayout(self)
self.layout.addWidget(self.view)
self.setLayout(self.layout)
def setCanvasSize(self, size):
self.canvasSize = size
def setCanvasPPI(self, ppi):
self.ppi = ppi
@property
def canvasSize(self):
return self._canvasSize
@property
def ppi(self):
return self._ppi
@canvasSize.setter
def canvasSize(self, size):
self._canvasSize = size
if self.painter:
self.painter.setSceneRect(0, 0, *paperSizes[self.canvasSize][self.ppi])
# print(*paperSizes[self.canvasSize][self.ppi])
@ppi.setter
def ppi(self, ppi):
self._ppi = int(ppi)
if self.painter:
self.painter.setSceneRect(0, 0, *paperSizes[self.canvasSize][self.ppi])
# print(*paperSizes[self.canvasSize][self.ppi])
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