def setpickregion(self, canvas, tag):
obj = canvas.getObjectByTag(tag)
if obj.kind != 'rectangle':
return True
canvas.deleteObjectByTag(tag, redraw=False)
if self.picktag:
try:
canvas.deleteObjectByTag(self.picktag, redraw=False)
except:
pass
# determine center of rectangle
x = obj.x1 + (obj.x2 - obj.x1) // 2
y = obj.y1 + (obj.y2 - obj.y1) // 2
tag = canvas.add(CanvasTypes.CompoundObject(
CanvasTypes.Rectangle(obj.x1,
obj.y1,
obj.x2,
obj.y2,
color=self.pickcolor),
CanvasTypes.Point(x, y, 10, color='red'),
CanvasTypes.Text(obj.x1,
obj.y2 + 4,
"Pick: calc",
color=self.pickcolor)),
redraw=False)
self.picktag = tag
#self.fv.raise_tab("detail")
return self.redo()
def setfromimage(self):
x1, y1 = 0, 0
x2, y2 = self.fitsimage.get_data_size()
tag = self.canvas.add(
CanvasTypes.Rectangle(x1, y1, x2, y2, color=self.mycolor))
self.getarea(self.canvas, tag)
def full_image(self):
canvas = self.canvas
try:
canvas.deleteObjectByTag(self.histtag, redraw=False)
except:
pass
image = self.fitsimage.get_image()
width, height = image.get_size()
x1, y1, x2, y2 = 0, 0, width-1, height-1
tag = canvas.add(CanvasTypes.Rectangle(x1, y1, x2, y2,
color='cyan',
linestyle='dash'))
self.draw_cb(canvas, tag)
def drag(self, canvas, button, data_x, data_y):
if not (button == 0x1):
return
obj = self.canvas.getObjectByTag(self.picktag)
if obj.kind == 'compound':
bbox = obj.objects[0]
elif obj.kind == 'rectangle':
bbox = obj
else:
return True
# calculate center of bbox
wd = bbox.x2 - bbox.x1
dw = wd // 2
ht = bbox.y2 - bbox.y1
dh = ht // 2
x, y = bbox.x1 + dw, bbox.y1 + dh
# calculate offsets of move
dx = (data_x - x)
dy = (data_y - y)
# calculate new coords
x1, y1, x2, y2 = bbox.x1 + dx, bbox.y1 + dy, bbox.x2 + dx, bbox.y2 + dy
if (not obj) or (obj.kind == 'compound'):
# Replace compound image with rectangle
try:
self.canvas.deleteObjectByTag(self.picktag, redraw=False)
except:
pass
self.picktag = self.canvas.add(
CanvasTypes.Rectangle(x1,
y1,
x2,
y2,
color='cyan',
linestyle='dash'))
else:
# Update current rectangle with new coords and redraw
bbox.x1, bbox.y1, bbox.x2, bbox.y2 = x1, y1, x2, y2
self.canvas.redraw(whence=3)
def draw_cb(self, canvas, tag):
obj = canvas.getObjectByTag(tag)
if obj.kind != 'rectangle':
return True
canvas.deleteObjectByTag(tag, redraw=False)
if self.histtag:
try:
canvas.deleteObjectByTag(self.histtag, redraw=False)
except:
pass
tag = canvas.add(CanvasTypes.CompoundObject(
CanvasTypes.Rectangle(obj.x1, obj.y1, obj.x2, obj.y2,
color=self.histcolor),
CanvasTypes.Text(obj.x1, obj.y2+4, "Histogram",
color=self.histcolor)))
self.histtag = tag
return self.redo()
def update(self, canvas, button, data_x, data_y):
if not (button == 0x1):
return
obj = self.canvas.getObjectByTag(self.histtag)
if obj.kind == 'compound':
bbox = obj.objects[0]
elif obj.kind == 'rectangle':
bbox = obj
else:
return True
# calculate center of bbox
wd = bbox.x2 - bbox.x1
dw = wd // 2
ht = bbox.y2 - bbox.y1
dh = ht // 2
x, y = bbox.x1 + dw, bbox.y1 + dh
# calculate offsets of move
dx = (data_x - x)
dy = (data_y - y)
# calculate new coords
x1, y1, x2, y2 = bbox.x1+dx, bbox.y1+dy, bbox.x2+dx, bbox.y2+dy
try:
canvas.deleteObjectByTag(self.histtag, redraw=False)
except:
pass
tag = canvas.add(CanvasTypes.Rectangle(x1, y1, x2, y2,
color='cyan',
linestyle='dash'))
self.draw_cb(canvas, tag)
dx = self.dx
dy = self.dy
# Mark center of object and region on main image
try:
self.canvas.deleteObjectByTag(self.picktag, redraw=False)
except:
pass
x1, y1 = data_x - dx, data_y - dy
x2, y2 = data_x + dx, data_y + dy
tag = self.canvas.add(
CanvasTypes.Rectangle(x1,
y1,
x2,
y2,
color='cyan',
linestyle='dash'))
self.picktag = tag
#self.setpickregion(self.canvas, tag)
def update(self, canvas, button, data_x, data_y):
if not (button == 0x1):
return
try:
obj = self.canvas.getObjectByTag(self.picktag)
if obj.kind == 'rectangle':
bbox = obj
else:
