def setScale(self, scale =1):
"""
Set scale factor
"""
if scale!=self.viewScale:
self.viewScale = float(scale)
matrix = qt.QWMatrix(self.viewScale,0.,0.,self.viewScale,0.,0.)
self.setWorldMatrix(matrix)
def draw(self, p):
"""
"""
if self.fullRedrawFlag:
scale = float(self.width())/self.imageWidth
wm = p.worldMatrix()
nwm = qt.QWMatrix(wm.m11(),wm.m12(),wm.m21(),wm.m22(),wm.dx(),wm.dy())
nwm = nwm.scale(scale, scale)
np = qt.QPainter(p.device())
np.setWorldMatrix(nwm)
np.drawPixmap(int(self.x()/scale)+1, int(self.y()/scale)+1, \
self.pixmap)
PrintCanvasRectangle.draw(self, p)
def __rectangleZoomChanged(self,drawingMgr) :
self.__zoomFitOrFill.setState(False)
rect = drawingMgr.rect()
canvas = self.__mainView.view()
matrix = canvas.matrix()
vp = canvas.viewport()
viewWidth,viewHeight = vp.width(),vp.height()
zoomX = float(viewWidth) / rect.width()
zoomY = float(viewHeight) / rect.height()
zoom = max(zoomX,zoomY)
newMatrix = qt.QWMatrix(zoom,0,0,zoom,matrix.dx(),matrix.dy())
rect = newMatrix.map(rect)
zoom = min(zoom,20)
canvas.setZoom(zoom,zoom)
canvas.setContentsPos(rect.x(),rect.y())
self.__zoomList.writeStrValue("%d%%" % (zoom * 100))
def get_qimage(self, image, canvas, zoom=1):
"""
Gets the QImage from a parent widget.
:param image: The QWidget that contains the image to extract
:type image: QWidget
:param canvas: The QCanvas obejct to add as overlay
:type canvas: QCanvas
:param zoom: Zoom level
:type zoom: int.
:returns: The QImage contained in the parent widget.
:rtype: QImage
"""
if canvas is not None and image is not None:
device = qt.QPixmap(image)
painter = qt.QPainter(device)
zoom = 1.0 / zoom
painter.setWorldMatrix(qt.QWMatrix(zoom, 0, 0, zoom, 0, 0))
if isinstance(canvas, list):
itemsList = canvas
else:
itemsList = canvas.allItems()
for item in itemsList:
if item.isVisible():
if hasattr(item,
'setScrollView'): #remove standalone items
continue
item.draw(painter)
painter.end()
img = device.convertToImage()
else:
img = image
return img
def onListSelected(self):
item = self.list.selectedItem()
pixmap = None
if item is None:
pass
elif item == self.root:
pass
else:
element = self.device.getComponentByAddress(item.text(0))
if element is not None:
if element.isLeaf():
img_str = element.fetchImage()
if img_str is not None:
pixmap = qt.QPixmap()
pixmap.loadFromData(img_str)
if self.inversed_image:
m = qt.QWMatrix()
m.scale(1.0, -1.0)
pixmap = pixmap.xForm(m)
x = element.getImageX()
y = element.getImageY()
if (x is not None) and (y is not None):
# Overlays
p = qt.QPainter()
p.begin(pixmap)
p.setPen(qt.QPen(qt.QColor(0xE0, 0xE0, 0), 2))
size = 8
center = qt.QPoint(
int(x / 100.0 * pixmap.width()),
int(y / 100.0 * pixmap.height()),
)
if self.inversed_image:
center.setY(
int((100.0 - y) / 100.0 * pixmap.height()))
p.drawLine(
qt.QPoint(center.x(),
center.y() - size),
qt.QPoint(center.x(),
center.y() + size),
)
p.drawLine(
qt.QPoint(center.x() - size, center.y()),
qt.QPoint(center.x() + size, center.y()),
)
p.setPen(qt.QPen(qt.QColor(0, 0xC0, 0), 2))
size = 20
center = qt.QPoint(
int(x / 100.0 * pixmap.width()),
int(y / 100.0 * pixmap.height()),
)
if self.inversed_image:
center.setY(
int((100.0 - y) / 100.0 * pixmap.height()))
p.drawLine(
qt.QPoint(center.x(),
center.y() - size),
qt.QPoint(center.x(),
center.y() + size),
)
p.drawLine(
qt.QPoint(center.x() - size, center.y()),
qt.QPoint(center.x() + size, center.y()),
)
p.end()
self.widget.lbImage.setPixmap(pixmap)
# This check because don't know how to clear QLabel but assigniong an empty pixmap, what prints a warning message
# if pixmap!=self._empty_image_pixmap or self.widget.lbImage.pixmap() is None or self.widget.lbImage.pixmap().width()>0:
# self.widget.lbImage.setPixmap(pixmap)
# self.widget.lbImage.setVisible(pixmap != self._empty_image_pixmap)
if pixmap is not None:
self.widget.lbImage.setPixmap(pixmap)
self.widget.lbImage.show()
else:
self.widget.lbImage.clear()
self.widget.lbImage.hide()