def pushLine(self, color, geometry): isg = InstructionGroup() converted_coordinates = [] for x, y in geometry: converted_coordinates.extend( self.relativeCoordinatesToScreenCoordinates(x, y) ) # The stencil operations referenced here ensure that the contours do not # draw outside the image. Without these, the contours would be all over the # place when zooming in (unless manual clipping was implemented). isg.add(StencilPush()) isg.add(Rectangle( pos=(self.display_x, self.display_y), size=(self.display_width, self.display_height) )) isg.add(StencilUse()) isg.add(Color(*color)) isg.add(Line( points=converted_coordinates, width=1.0 )) isg.add(StencilUnUse()) isg.add(Rectangle( pos=(self.display_x, self.display_y), size=(self.display_width, self.display_height) )) isg.add(StencilPop()) self.lines.append(geometry) self.colors.append(color) self.instruction_groups.append(isg) self.canvas.add(isg)
def lay_canvas_instructions(self):
with self.canvas.after:
StencilPush()
RoundedRectangle(size=self.size, pos=self.pos, radius=[self._radius])
StencilUse()
self.col_instruction = Color(rgba=self.ripple_color)
self.ellipse = Ellipse(
size=(self.ripple_rad, self.ripple_rad),
pos=(
self.ripple_pos[0] - self.ripple_rad / 2.0,
self.ripple_pos[1] - self.ripple_rad / 2.0,
),
)
StencilUnUse()
RoundedRectangle(size=self.size, pos=self.pos, radius=[self._radius])
StencilPop()
self.bind(ripple_color=self._set_color, ripple_rad=self._set_ellipse)
def updateContoursForZoom(self): # We need to update all of the rectangles in the canvas that pertain # to drawing contours. # Get rid of the existing graphics objects. for g in range(len(self.instruction_groups)): self.canvas.remove(self.instruction_groups[-1]) self.instruction_groups.remove(self.instruction_groups[-1]) # Add new graphics instructions with appropriate coordinates. # Redraw them normally. for geo, color in zip(self.lines, self.colors): isg = InstructionGroup() converted_coordinates = [] for x, y in geo: converted_coordinates.extend([ self.relativeCoordinatesToScreenCoordinates(x, y) ]) # The stencil operations referenced here ensure that the contours # do not draw outside the image. Without these, the contours would # be all over the place when zooming in (unless manual clipping was # implemented). isg.add(StencilPush()) isg.add(Rectangle( pos=(self.display_x, self.display_y), size=(self.display_width, self.display_height) )) isg.add(StencilUse()) isg.add(Color(*color)) isg.add(Line( points=converted_coordinates, width=1.0 )) isg.add(StencilUnUse()) isg.add(Rectangle( pos=(self.display_x, self.display_y), size=(self.display_width, self.display_height) )) isg.add(StencilPop()) self.instruction_groups.append(isg) self.canvas.add(isg)
def __init__(self, **kwargs):
self.canvas = Canvas()
window_width = Window.width
window_height = Window.height
aspect = window_width / float(window_height)
center_x = window_width / 2.
center_y = window_height / 2.
element_size = window_width
with self.canvas:
self.fbo = Fbo(size=self.size, with_depthbuffer=True)
self.fbo_color = Color(1, 1, 1, 1)
self.fbo_rects = (
StencilPush(),
Triangle(points=(
0,
0,
center_x * 1.5,
window_height,
0,
window_height,
)),
StencilUse(),
Rotate(angle=-90,
axis=(0, 0, 1),
origin=(center_x, window_height * 2 / 3.)),
Rectangle(pos=(center_x - element_size / 2., -5),
size=(element_size, element_size / aspect),
texture=self.texture),
Rotate(angle=90,
axis=(0, 0, 1),
origin=(center_x, window_height * 2 / 3.)),
StencilUnUse(),
Triangle(points=(
0,
0,
center_x * 1.5,
window_height,
0,
window_height,
)),
StencilPop(),
StencilPush(),
Triangle(points=(
window_width,
0,
center_x * .5,
window_height,
window_width,
window_height,
)),
StencilUse(),
Rotate(angle=90,
axis=(0, 0, 1),
origin=(center_x, window_height * 2 / 3.)),
Rectangle(pos=(center_x - element_size / 2., -5),
size=(element_size, element_size / aspect),
texture=self.texture),
)
Rotate(angle=-90,
axis=(0, 0, 1),
origin=(center_x, window_height * 2 / 3.))
StencilUnUse()
Triangle(points=(
window_width,
0,
center_x * .5,
window_height,
window_width,
window_height,
))
StencilPop()
StencilPush()
Triangle(points=(
0,
0,
window_width,
0,
center_x,
window_height * 2 / 3.,
))
StencilUse()
if self.texture:
self.texture.flip_horizontal()
self.mirrored_rect = Rectangle(pos=(center_x - element_size / 2.,
0),
size=(element_size,
element_size / aspect),
texture=self.texture)
StencilUnUse()
Triangle(points=(
0,
0,
window_width,
0,
center_x,
window_height * 2 / 3.,
))
StencilPop()
with self.fbo:
ClearColor(0, 0, 0, 0)
ClearBuffers()
self.texture = self.fbo.texture
super(HoloStandLayout, self).__init__(**kwargs)