class RectRubberband():
def __init__(self):
self.visible = False
self.box = Viewer()
def draw(self):
gl.glLineWidth(2.5)
gl.glColor3f(100, 0, 0)
left, right, bottom, top = self.box.unprojectView()
# Inverts the mouse pointer
gl.glBegin(gl.GL_LINES)
gl.glVertex2f(left, top)
gl.glVertex2f(left, bottom)
gl.glVertex2f(left, bottom)
gl.glVertex2f(right, bottom)
gl.glVertex2f(right, bottom)
gl.glVertex2f(right, top)
gl.glVertex2f(right, top)
gl.glVertex2f(left, top)
gl.glEnd()
def show(self):
self.visible = True
def hide(self):
self.visible = False
def isVisible(self):
return self.visible
def setGeometry(self, event):
self.box.set_view((event.left(), event.right(), event.bottom(), event.top()))
def restrictBoundaries(self, width, height):
if self.box.left < 0:
self.box.left = 0
if self.box.right > width:
self.box.right = width
if self.box.top < 0:
self.box.top = 0
if self.box.bottom > height:
self.box.bottom = height
