def circle(x, y, radius, color):
iterations = 20
s = sin(2*pi / iterations)
c = cos(2*pi / iterations)
dx, dy = radius, 0
glColor4f(*color)
glBegin(GL_TRIANGLE_FAN)
glVertex2f(x, y)
for i in range(iterations+1):
glVertex2f(x+dx, y+dy)
dx, dy = (dx*c - dy*s), (dy*c + dx*s)
glEnd()
def draw_rect(x, y, width, height): gl.glBegin(gl.GL_QUADS) gl.glVertex2f(x, y) gl.glVertex2f(x + width, y) gl.glVertex2f(x + width, y + height) gl.glVertex2f(x, y + height) gl.glEnd()
def on_draw():
# clears the background with the background color
gl.glClearColor(*background)
gl.glClear(gl.GL_COLOR_BUFFER_BIT)
# draw in a loop
boundary = winsize - 100
gap = (winsize - boundary) / 2
i_width = boundary / len(rgb1)
i_height = boundary / 2
# the first line
for idx, rgb in enumerate(rgb1):
gl.glColor3f(*rgb)
gl.glBegin(
gl.GL_QUADS
) # start drawing a rectangle in counter-clockwise (CCW) order
gl.glVertex2f(gap + idx * i_width,
gap + i_height) # bottom left point
gl.glVertex2f(gap + (idx + 1) * i_width,
gap + i_height) # bottom right point
gl.glVertex2f(gap + (idx + 1) * i_width,
gap + boundary) # top right point
gl.glVertex2f(gap + idx * i_width,
gap + boundary) # top left point
gl.glEnd()
label = pyglet.text.Label(str(color1[idx]),
font_size=7,
x=gap + idx * i_width,
y=gap + boundary + 20)
label.draw()
# # # the second line
for idx, rgb in enumerate(rgb2):
gl.glColor3f(*rgb)
gl.glBegin(
gl.GL_QUADS
) # start drawing a rectangle in counter-clockwise (CCW) order
gl.glVertex2f(gap + idx * i_width, gap) # bottom left point
gl.glVertex2f(gap + (idx + 1) * i_width,
gap) # bottom right point
gl.glVertex2f(gap + (idx + 1) * i_width,
gap + i_height) # top right point
gl.glVertex2f(gap + idx * i_width,
gap + i_height) # top left point
gl.glEnd()
label = pyglet.text.Label(str(color2[idx]),
font_size=7,
x=gap + idx * i_width,
y=gap - 20)
label.draw()
