def __init__(self):
VG.create_context((2048,2048))
self.x = 0
self.y = -.99
self.vr = 10
self.vt = math.pi/2
self.at = 0
def __init__(self):
VG.create_context((2048,2048))
self.offsets = []
self.displacements = []
self.values = []
self.fill()
def draw(self):
if self.transform:
mat = VG.get_matrix()
VG.mult_matrix(self.transform)
self.path.draw(self.paint_mode, style=self.style)
if self.transform:
VG.load_matrix(mat)
def center_and_concat(p1, p2):
(dx, dy), (dw, dh) = p1.bounds()
(sx, sy), (sw, sh) = p2.bounds()
dst_cx, dst_cy = (dx+dw/2.0), (dy+dh/2.0)
src_cx, src_cy = (sx+sw/2.0), (sy+sh/2.0)
VG.translate(dst_cx-src_cx, dst_cy-src_cy)
p2.transform(p1)
VG.load_identity()
def setup(name, width, height, flags=pygame.DOUBLEBUF):
pygame.init()
pygame.display.gl_set_attribute(pygame.GL_STENCIL_SIZE, 2)
screen = pygame.display.set_mode((width, height), pygame.OPENGL | flags)
pygame.display.set_caption(name)
VG.create_context((width, height))
VG.set(VG_CLEAR_COLOR, (1.0, 1.0, 1.0, 1.0))
pm.init_pymunk()
return screen
def main(width, height):
pygame.init()
pygame.display.gl_set_attribute(pygame.GL_STENCIL_SIZE, 2)
srf = pygame.display.set_mode((width, height), pygame.OPENGL | pygame.DOUBLEBUF)
pygame.display.set_caption("Rainbow Gradient Test")
VG.create_context((width, height))
VG.set(VG_CLEAR_COLOR, (1.0, 1.0, 1.0, 1.0))
canvas = VG.Path(capabilities=VG_PATH_CAPABILITY_APPEND_TO)
VGU.rect(canvas, (0, 0), (width, height))
rgb_gradient = VG.GradientPaint([(0,0), (width,0)], linear=True)
rgb_gradient.spread_mode = VG_COLOR_RAMP_SPREAD_REFLECT
rgb_gradient.stops = generate_rgb_stops(7)
alpha_stops = [(0.0, (0.0, 0.0, 0.0, 0.0)),
(1.0, (1.0, 1.0, 1.0, 1.0))]
alpha_gradient = VG.GradientPaint([(0,0), (0,height)], linear=True)
alpha_gradient.spread_mode = VG_COLOR_RAMP_SPREAD_REFLECT
alpha_gradient.stops = alpha_stops
n = 7
running = True
while running:
events = pygame.event.get()
for e in events:
if e.type == pygame.QUIT:
running = False
elif e.type == pygame.KEYDOWN:
if e.key == pygame.K_ESCAPE:
running = False
elif e.type == pygame.MOUSEBUTTONDOWN:
if e.button == 4:
n += 1
rgb_gradient.stops = generate_rgb_stops(n)
elif e.button == 5:
if n > 2:
n -= 1
rgb_gradient.stops = generate_rgb_stops(n)
VG.clear((0, 0), (640, 480))
VG.set_paint(rgb_gradient, VG_FILL_PATH)
canvas.draw(VG_FILL_PATH)
VG.set_paint(alpha_gradient, VG_FILL_PATH)
canvas.draw(VG_FILL_PATH)
pygame.display.flip()
def main(width, height):
pygame.init()
pygame.display.gl_set_attribute(pygame.GL_STENCIL_SIZE, 2)
srf = pygame.display.set_mode((width, height), pygame.OPENGL | pygame.DOUBLEBUF)
pygame.display.set_caption("Polyline test")
VG.create_context((width, height))
VG.set(VG_CLEAR_COLOR, (1.0, 1.0, 1.0, 1.0))
polyline = VG.Path()
stroke_paint = VG.ColorPaint((0.5, 0.2, 0.8, 0.6))
VG.set_paint(stroke_paint, VG_STROKE_PATH)
fill_paint = VG.ColorPaint((0.3, 1.0, 0.0, 0.6))
VG.set_paint(fill_paint, VG_FILL_PATH)
polyline.style = VG.Style(VG_STROKE_LINE_WIDTH = 4.0,
VG_STROKE_JOIN_STYLE = VG_JOIN_MITER,
VG_STROKE_CAP_STYLE = VG_CAP_ROUND)
print "Usage"
print "Left click: LINE_TO"
print "Right click: MOVE_TO"
running = True
first_click = True
while running:
events = pygame.event.get()
for e in events:
if e.type == pygame.QUIT:
running = False
elif e.type == pygame.KEYDOWN:
if e.key == pygame.K_ESCAPE:
running = False
elif e.type == pygame.MOUSEBUTTONDOWN:
if e.button == 1: #left button
if first_click:
polyline.move_to((e.pos[0], height-e.pos[1]), rel=False)
first_click = False
else:
polyline.line_to((e.pos[0], height-e.pos[1]), rel=False)
elif e.button == 3:#right button
polyline.move_to((e.pos[0], height-e.pos[1]), rel=False)
VG.clear((0, 0), (width, height))
polyline.draw(VG_STROKE_PATH)
pygame.display.flip()
def draw(self):
with self.style:
VG.set(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE)
old_matrix = VG.get_matrix()
VG.translate(*self.body.position)
VG.rotate(math.degrees(self.body.angle))
self.path.draw(VG_STROKE_PATH)
VG.load_matrix(old_matrix)
def main(width, height, message, rpm=20):
pygame.init()
pygame.display.gl_set_attribute(pygame.GL_STENCIL_SIZE, 2)
srf = pygame.display.set_mode((width, height), pygame.OPENGL | pygame.DOUBLEBUF)
pygame.display.set_caption("Freetype Font test")
VG.create_context((width, height))
VG.set(VG_CLEAR_COLOR, (1.0, 1.0, 1.0, 1.0))
font = Font("data/fonts/Vera.ttf", 64)
red_paint = VG.ColorPaint((1.0, 0.0, 0.0, 1.0))
text = font.build_path(message)
(x, y), (w, h) = text.bounds()
text.style = VG.Style(VG_STROKE_LINE_WIDTH = 1.0,
fill_paint = red_paint)
clock = pygame.time.Clock()
dt = 0
cx = width/2.0 - w/2.0
cy = height/2.0 - h/2.0
running = True
while running:
events = pygame.event.get()
for e in events:
if e.type == pygame.QUIT:
running = False
elif e.type == pygame.KEYDOWN:
if e.key == pygame.K_ESCAPE:
running = False
elif e.type == pygame.MOUSEBUTTONDOWN:
pos = e.pos
cx = pos[0] - w/2.0
cy = height-pos[1] - h/2.0
VG.clear((0, 0), (width, height))
VG.load_identity()
VG.translate(cx, cy)
rotate_about((x+w/2.0, y+h/2.0), dt*360.0*rpm / (60*1000.0))
text.draw(VG_STROKE_PATH | VG_FILL_PATH)
pygame.display.flip()
dt += clock.tick(60)
def draw(self):
if self.transform:
mat = VG.get_matrix()
VG.mult_matrix(self.transform)
if self.style:
self.style.enable()
for child in self.drawables:
child.draw()
if self.style:
self.style.disable()
if self.transform:
VG.load_matrix(mat)
def draw(self):
if self.transform:
mat = VG.get_matrix()
VG.mult_matrix(self.transform)
if self.style:
self.style.enable()
for child in self.drawables:
if isinstance(child, VG.Path):
child.draw(self.paint_mode)
else:
child.draw()
if self.style:
self.style.disable()
if self.transform:
VG.load_matrix(mat)
def main(width, height, path, flags=0):
pygame.init()
pygame.display.gl_set_attribute(pygame.GL_STENCIL_SIZE, 2)
flags |= pygame.OPENGL | pygame.DOUBLEBUF
screen = pygame.display.set_mode((width, height), flags)
pygame.display.set_caption("Pygame Image Direct Write Test")
VG.create_context((width, height))
VG.set(VG_CLEAR_COLOR, (1.0, 1.0, 1.0, 1.0))
im = load_image(path)
dest_x = (width-im.width)/2.0
dest_y = (height-im.height)/2.0
dragging = False
running = True
while running:
events = pygame.event.get()
for e in events:
if e.type == pygame.QUIT:
running = False
elif e.type == pygame.KEYDOWN:
if e.key == pygame.K_ESCAPE:
running = False
elif e.type == pygame.MOUSEBUTTONDOWN:
if e.button == 1:
dragging = True
elif e.type == pygame.MOUSEBUTTONUP:
if e.button == 1:
dragging = False
elif e.type == pygame.MOUSEMOTION:
if dragging:
dest_x += e.rel[0]
dest_y -= e.rel[1]
VG.clear((0, 0), (width, height))
VG.write_image(im, (dest_x, dest_y))
pygame.display.flip()
def wheel(self, num_segments, duty_cycle, outer_radius, inner_radius, line_width, color_bias, saturation, value):
VG.set(VG_STROKE_LINE_WIDTH, 0.05)
for i in range(0, num_segments):
inner = 2 * pi / num_segments * (i + 0.5)
inner_x = inner_radius * cos(inner)
inner_y = inner_radius * sin(inner)
p = VG.Path()
r_start = 360.0 / num_segments * i
r_dist = 360.0 / num_segments * duty_cycle
p.move_to((inner_x, inner_y))
VGU.arc(p, (0, 0), (outer_radius * 2, outer_radius * 2), r_start, r_dist, 0xF100)
p.line_to((inner_x, inner_y))
# XXX doesn't join to arc start quite correctly
p.line_to((outer_radius * cos(r_start / 360.0 * 2 * pi), outer_radius * sin(r_start / 360.0 * 2 * pi)))
(r, g, b) = hsv_to_rgb(float(i) / num_segments + color_bias * 2 * pi, saturation, value)
paint = VG.ColorPaint((0, 0, 0, 1.0))
VG.set_paint(paint, VG_STROKE_PATH)
paint = VG.ColorPaint((r, g, b, 1.0))
VG.set_paint(paint, VG_FILL_PATH)
p.draw(VG_FILL_PATH)
p.draw(VG_STROKE_PATH)
def main():
WIDTH = 640
HEIGHT = 480
screen = setup("Pymunk + PyOpenVG test", WIDTH, HEIGHT, pygame.DOUBLEBUF | pygame.RESIZABLE)
black = VG.ColorPaint((0.0, 0.0, 0.0, 1.0))
white = VG.ColorPaint((1.0, 1.0, 1.0, 1.0))
red = VG.ColorPaint((1.0, 0.0, 0.0, 1.0))
yellow = VG.ColorPaint((1.0, 1.0, 0.0, 1.0))
space = pm.Space()
space.gravity = (0, -900)
Ls = [StaticL(space, (300, 300), 200, 25),
StaticL(space, (250, 150), 200, 25)]
balls = []
running = True
fps = 60
multiplier = 1
clock = pygame.time.Clock()
while running:
#Handle events
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
running = False
elif pygame.K_1 <= event.key <= pygame.K_3:
multiplier = event.key - pygame.K_0
elif event.type == pygame.MOUSEBUTTONDOWN:
if event.button == 1:
pos = (event.pos[0], HEIGHT-event.pos[1])
balls.append(Ball(space, pos, 12*multiplier, smiley=True))
elif event.button == 3:
pos = (event.pos[0], HEIGHT-event.pos[1])
balls.append(Ball(space, pos, 12*multiplier, smiley=False))
#Update world
space.step(1.0/fps)
#Redraw
VG.clear((0,0), (WIDTH, HEIGHT))
for L in Ls:
L.draw()
offscreen = []
for ball in balls:
if ball.body.position.y < 0:
offscreen.append(ball)
elif ball.body.position.x < 0 or ball.body.position.x > WIDTH:
offscreen.append(ball)
else:
ball.draw()
for ball in offscreen:
balls.remove(ball)
pygame.display.flip()
clock.tick(fps)
def main():
pygame.init()
pygame.display.gl_set_attribute(pygame.GL_STENCIL_SIZE, 2)
srf = pygame.display.set_mode((640,480), pygame.OPENGL | pygame.DOUBLEBUF)
pygame.display.set_caption("Paint test")
VG.create_context((640, 480))
VG.set(VG_CLEAR_COLOR, (1.0, 1.0, 1.0, 1.0))
VG.set(VG_STROKE_LINE_WIDTH, 3.0)
p = VG.Path(capabilities=VG_PATH_CAPABILITY_APPEND_TO)
VGU.ellipse(p, (0, 0), (64*2,64*2))
solid_paint = VG.ColorPaint((1.0, 0.0, 1.0))
stops = [(0.0,(1.0,1.0,1.0,1.0)), (0.333,(1.0,0.0,0.0,1.0)), (0.666,(0.0,1.0,0.0,1.0)), (1.0,(0.0,0.0,1.0,1.0))]
linear_gradient = [(-60,0), (60,0)]
linear_paint = VG.GradientPaint(linear_gradient, linear=True)
linear_paint.spread_mode = VG_COLOR_RAMP_SPREAD_REFLECT
linear_paint.stops = stops
radial_gradient = [(0,0), (0,0), 64]
radial_paint = VG.GradientPaint(radial_gradient, linear=False)
radial_paint.stops = stops
running = True
while running:
events = pygame.event.get()
for e in events:
if e.type == pygame.QUIT:
running = False
elif e.type == pygame.KEYDOWN:
if e.key == pygame.K_ESCAPE:
running = False
VG.clear((0, 0), (640, 480))
VG.set(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE)
VG.load_identity()
VG.translate(68, 240-64)
VG.set_paint(solid_paint, VG_FILL_PATH)
p.draw(VG_STROKE_PATH | VG_FILL_PATH)
VG.translate(192, 0)
VG.set_paint(linear_paint, VG_FILL_PATH)
p.draw(VG_STROKE_PATH | VG_FILL_PATH)
VG.translate(192, 0)
VG.set_paint(radial_paint, VG_FILL_PATH)
p.draw(VG_STROKE_PATH | VG_FILL_PATH)
pygame.display.flip()
def rotate_about(p, angle):
VG.translate(p[0], p[1])
VG.rotate(angle)
VG.translate(-p[0], -p[1])
def main(width, height, font_path, size):
pygame.init()
pygame.display.gl_set_attribute(pygame.GL_STENCIL_SIZE, 2)
srf = pygame.display.set_mode((width, height), pygame.OPENGL | pygame.DOUBLEBUF)
pygame.display.set_caption("Freetype Font test")
VG.create_context((width, height))
VG.set(VG_CLEAR_COLOR, (1.0, 1.0, 1.0, 1.0))
font = Font(font_path, size)
xmin, ymin, xmax, ymax = [x*font.scale for x in font.face.bbox]
the_path = VG.Path()
message = font.build_path("left click and drag to move")
(x, y), (w, h) = message.bounds()
VG.translate(width/2.0-w/2.0, height-h)
message.transform(the_path)
VG.load_identity()
VG.translate(0-xmin, height-ymax-h)
boxes_per_line = int(width/float(xmax-xmin))
i = 0
for char_code, glyph in sorted(font.glyph_table.items()):
font.get_path_for_glyph(glyph).transform(the_path)
VG.translate(xmax-xmin, 0)
i += 1
if i >= boxes_per_line:
VG.translate((xmax-xmin)*-boxes_per_line, ymin-ymax)
i = 0
VG.load_identity()
red_paint = VG.ColorPaint((1.0, 0.0, 0.0, 1.0))
style = VG.Style(VG_STROKE_LINE_WIDTH = 1.0,
fill_paint = red_paint)
style.enable()
dragging = False
running = True
while running:
events = pygame.event.get()
for e in events:
if e.type == pygame.QUIT:
running = False
elif e.type == pygame.KEYDOWN:
if e.key == pygame.K_ESCAPE:
running = False
elif e.type == pygame.MOUSEBUTTONDOWN:
if e.button == 1:
dragging = True
elif e.type == pygame.MOUSEBUTTONUP:
if e.button == 1:
dragging = False
elif e.type == pygame.MOUSEMOTION:
if dragging:
VG.translate(e.rel[0], -e.rel[1])
VG.clear((0, 0), (width, height))
the_path.draw(VG_STROKE_PATH | VG_FILL_PATH)
pygame.display.flip()
def main(width, height):
pygame.init()
pygame.display.gl_set_attribute(pygame.GL_STENCIL_SIZE, 2)
pygame.display.gl_set_attribute(pygame.GL_MULTISAMPLEBUFFERS, 1)
pygame.display.gl_set_attribute(pygame.GL_MULTISAMPLESAMPLES, 4)
screen = pygame.display.set_mode((width, height), pygame.OPENGL | pygame.DOUBLEBUF)
pygame.display.set_caption("Flower test")
VG.create_context((width, height))
VG.set(VG_CLEAR_COLOR, (0.0, 0.0, 0.0, 1.0))
vera = Font("data/fonts/Vera.ttf", 32)
message = vera.build_path("Hold down LMB to create flowers")
message.style = VG.Style(fill_paint=VG.ColorPaint((1.0, 1.0, 1.0, 0.7)))
doc = parse_svg("data/svg/flower.svg")
flower = doc.getroot()
(x,y), (w,h) = flower.bounds()
cx,cy = x+w/2.0, y+h/2.0
particles = []
to_remove = []
clock = pygame.time.Clock()
dt = 0
running = True
while running:
for e in pygame.event.get():
if e.type == pygame.QUIT:
running = False
elif e.type == pygame.KEYDOWN:
if e.key == pygame.K_ESCAPE:
running = False
if pygame.mouse.get_pressed()[0]:
x,y = pygame.mouse.get_pos()
m = random.randint(-60, 60)
angle = random.randint(0,359)
pos = (x-cx, height-y-cy)
vel = (m*math.cos(math.radians(angle)),
m*math.sin(math.radians(angle)))
rot = random.randint(-30, 30)
scale = random.randint(8, 12)/10.0
particles.append([pos, vel, random.randint(0,359), rot, scale])
VG.clear((0,0), (width, height))
for particle in particles:
VG.load_identity()
pos, vel, angle, rot, scale = particle
VG.translate(pos[0]+cx, pos[1]+cy)
VG.scale(scale, scale)
VG.rotate(angle)
VG.translate(-cx, -cy)
flower.draw()
particle[0] = (pos[0]+vel[0]*dt/1000.0,pos[1]+vel[1]*dt/1000.0)
particle[2] += rot * dt/1000.0
if particle[0][0] + w < 0 or particle[0][1] + h < 0:
to_remove.append(particle)
elif particle[0][0] - w > width or particle[0][1] - h > height:
to_remove.append(particle)
particles = [particle for particle in particles if particle not in to_remove]
del to_remove[:]
VG.load_identity()
message.draw(VG_FILL_PATH)
dt = clock.tick(30)
pygame.display.flip()
def render(self):
return
smack = 1/2048.0
glScale(smack,smack,1.0)
VG.set(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE)
VG.load_identity()
VG.scale(1.0/smack, 1.0/smack)
# Create the path (a simple circle for now...)
p = VG.Path()
r = 0.1
VGU.ellipse(p, (pe.kaleidoscope_x,pe.kaleidoscope_y), (r,r))
# Set up the drawing and painting parameters
pe.vg_stroke_r = 0.5 + 0.35 * math.sin(7/10.0*pe.time)
pe.vg_stroke_g = 0.5 + 0.35 * math.sin(11/10.0*pe.time)
pe.vg_stroke_g = 0.5 + 0.35 * math.sin(13/10.0*pe.time)
pe.vg_stroke_a = 1.0;
pe.vg_fill_r = 1.0 - pe.vg_stroke_r
pe.vg_fill_g = 1.0 - pe.vg_stroke_g
pe.vg_fill_g = 1.0 - pe.vg_stroke_b
VG.set(VG_STROKE_LINE_WIDTH, pe.vg_stroke_thickness)
paint = VG.ColorPaint((pe.vg_stroke_r, pe.vg_stroke_g,
pe.vg_stroke_b, pe.vg_stroke_a))
VG.set_paint(paint, VG_STROKE_PATH)
paint = VG.ColorPaint((pe.vg_fill_r, pe.vg_fill_g,
pe.vg_fill_b, pe.vg_fill_a))
VG.set_paint(paint, VG_FILL_PATH)
p.draw(VG_FILL_PATH)
p.draw(VG_STROKE_PATH)
def render_bg_old(self):
smack = 1/2048.0
glScale(smack,smack,1.0)
VG.set(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE)
VG.load_identity()
VG.scale(1.0/smack, 1.0/smack)
here = -1
idx = 0
while here < 1:
width = random()*.2*3
p = VG.Path()
p.move_to((-5,here+width/2))
p.line_to((5,here+width/2 + random()*.1))
v = random()
VG.set(VG_STROKE_LINE_WIDTH, width)
paint = VG.ColorPaint((0.0, 0.0, 0.0, 1.0))
VG.set_paint(paint, VG_STROKE_PATH)
p.draw(VG_STROKE_PATH)
VG.set(VG_STROKE_LINE_WIDTH, width*.85)
paint = VG.ColorPaint((v, v, v, 1.0))
VG.set_paint(paint, VG_STROKE_PATH)
p.draw(VG_STROKE_PATH)
here += width
def build_path(self, text, horizontal=True, do_kerning=True):
old_matrix = VG.get_matrix()
VG.load_identity()
path = VG.Path()
#Kerning and vertical layouts are mutually exclusive in Freetype
if do_kerning and horizontal and self.face.has_kerning:
last_glyph = None
for char in text:
glyph = self.get_glyph(char)
subpath = self.get_path_for_glyph(glyph)
if last_glyph is not None:
kerning = self.face.get_kerning(last_glyph.index,
glyph.index,
FT_KERNING_UNSCALED)
VG.translate(self.scale*kerning[0], self.scale*kerning[1])
last_glyph = glyph
subpath.transform(path)
VG.translate(self.scale*glyph.advance[0], 0.0)
else:
for char in text:
glyph = self.get_glyph(char)
subpath = self.get_path_for_glyph(glyph)
subpath.transform(path)
VG.translate(self.scale*glyph.advance[0]*horizontal,
self.scale*glyph.advance[1]*(not horizontal))
VG.load_matrix(old_matrix)
return path
def render_bg(self):
return
self.update()
smack = 1/2048.0
glScale(smack,smack,1.0)
VG.set(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE)
VG.load_identity()
VG.scale(1.0/smack, 1.0/smack)
idx = 0
while 1:
here = self.offsets[idx]
width = self.offsets[idx+1]-here
disp = self.displacements[idx]
v = self.values[idx]
idx += 1
if here > 1.0:
break
p = VG.Path()
p.move_to((-5,here+width/2))
p.line_to((5,here+width/2 + disp))
VG.set(VG_STROKE_LINE_WIDTH, width)
paint = VG.ColorPaint((0.0, 0.0, 0.0, 1.0))
VG.set_paint(paint, VG_STROKE_PATH)
p.draw(VG_STROKE_PATH)
VG.set(VG_STROKE_LINE_WIDTH, width*.85)
paint = VG.ColorPaint((v, v, v, 1.0))
VG.set_paint(paint, VG_STROKE_PATH)
p.draw(VG_STROKE_PATH)
def main(width, height, radius, count, flags=0):
pygame.init()
pygame.display.gl_set_attribute(pygame.GL_STENCIL_SIZE, 2)
flags |= pygame.OPENGL | pygame.DOUBLEBUF
srf = pygame.display.set_mode((width, height), flags)
pygame.display.set_caption("Blending test")
VG.create_context((width, height))
VG.set(VG_CLEAR_COLOR, (1.0, 1.0, 1.0, 1.0))
orange_paint = VG.ColorPaint((1.0, 0.5, 0.0, 0.5))
blue_paint = VG.ColorPaint((0.0, 0.0, 1.0, 0.5))
black_paint = VG.ColorPaint((0.0, 0.0, 0.0))
blend_modes = [VG_BLEND_SRC, VG_BLEND_SRC_OVER, VG_BLEND_DST_OVER,
VG_BLEND_SRC_IN, VG_BLEND_DST_IN, VG_BLEND_MULTIPLY,
VG_BLEND_SCREEN, VG_BLEND_DARKEN, VG_BLEND_LIGHTEN,
VG_BLEND_ADDITIVE]
blend_index = 0
VG.set(VG_BLEND_MODE, blend_modes[0])
font = Font("data/fonts/Vera.ttf", 30)
src_path = font.build_path("SRC")
dst_path = font.build_path("DST")
message = font.build_path("Scroll to change the blend mode")
circle = VG.Path()
VGU.ellipse(circle, (0, 0), (radius*2, radius*2))
center_and_concat(circle, dst_path)
square = VG.Path()
VGU.rect(square, (-radius, -radius), (radius*2, radius*2))
center_and_concat(square, src_path)
circle2 = VG.Path()
VGU.ellipse(circle2, (0, 0), (radius*2, radius*2))
running = True
while running:
events = pygame.event.get()
for e in events:
if e.type == pygame.QUIT:
running = False
elif e.type == pygame.KEYDOWN:
if e.key == pygame.K_ESCAPE:
running = False
elif e.type == pygame.MOUSEBUTTONDOWN:
if e.button == 4:
blend_index += 1
VG.set(VG_BLEND_MODE, blend_modes[blend_index % len(blend_modes)])
elif e.button == 5:
blend_index -= 1
VG.set(VG_BLEND_MODE, blend_modes[blend_index % len(blend_modes)])
VG.clear((0, 0), (width, height))
VG.set(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE)
VG.load_identity()
VG.translate(width - radius*1.5, radius * 2.5)
circle.draw(VG_FILL_PATH | VG_STROKE_PATH)
VG.translate(-radius, -radius)
VG.set_paint(orange_paint, VG_FILL_PATH)
square.draw(VG_FILL_PATH | VG_STROKE_PATH)
VG.set_paint(blue_paint, VG_FILL_PATH)
for i in xrange(count):
angle = i*2*math.pi/count
VG.load_identity()
VG.translate(width//2, height//2)
VG.translate(radius*math.cos(angle), radius*math.sin(angle))
circle2.draw(VG_FILL_PATH)
VG.load_identity()
(x,y), (w,h) = message.bounds()
VG.translate(-x, height-y-h)
message.draw(VG_STROKE_PATH | VG_FILL_PATH)
pygame.display.flip()
def render(self):
smack = 1/2048.0
glScale(smack,smack,1.0)
VG.set(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE)
VG.load_identity()
VG.scale(1.0/smack, 1.0/smack)
p = VG.Path()
p.move_to((-0.5,-0.5))
VG.set(VG_STROKE_LINE_WIDTH, .01)
pe.wave_a=0
pe.square_a=0
r = pe.mid
theta = pe.time
#VGU.round_rect(p, (-0.5,-0.5), (1,1), 1-pe.bass, 1-pe.bass)
p.quad_to((-r*cos(theta), r*sin(theta)), (0.5, -0.5))
p.quad_to((-r*cos(theta), r*sin(theta)), (0, 0.5))
p.quad_to((-r*cos(theta), r*sin(theta)), (-0.5, -0.5))
paint = VG.ColorPaint((pe.wave_r, pe.wave_g, pe.wave_b, 1.0))
VG.set_paint(paint, VG_STROKE_PATH)
paint = VG.ColorPaint((1-pe.wave_r, 1-pe.wave_g, 1-pe.wave_b, 1.0))
VG.set_paint(paint, VG_FILL_PATH)
p.draw(VG_FILL_PATH)
p.draw(VG_STROKE_PATH)
def build_path(self, string, index, ctp):
ctp_x, ctp_y = ctp
path = VG.Path()
vertical = False
with VG.push([1,0,0,0,1,0,0,0,1]):
#TODO: vertical and bidi text.
last_glyph = None
for char in string:
ctp_x, ctp_y = self._transform(ctp_x, ctp_y, index)
glyph = self.font.get_glyph(char)
subpath = self.font.get_path_for_glyph(glyph)
#Flip it.
with VG.push([1,0,0,0,-1,0,0,0,1]):
subpath = subpath.transform()
VG.translate(ctp_x, ctp_y)
if self.font.face.has_kerning and last_glyph is not None:
kerning = self.font.face.get_kerning(last_glyph.index,
glyph.index,
FT_KERNING_UNSCALED)
VG.translate(self.font.scale*kerning[0],
self.font.scale*kerning[1])
ctp_x += self.font.scale*kerning[0]
ctp_y += self.font.scale*kerning[1]
if index < len(self.trot)-1:
VG.translate(ctp_x, ctp_y)
VG.rotate(self.rotate[index])
VG.translate(-ctp_x, -ctp_y)
last_glyph = glyph
subpath.transform(path)
ctp_x += self.font.scale*glyph.advance[0]
ctp_y += self.font.scale*glyph.advance[1]*vertical
VG.load_matrix([1,0,0,0,1,0,0,0,1])
return path, ctp
def main(width, height):
pygame.init()
pygame.display.gl_set_attribute(pygame.GL_STENCIL_SIZE, 2)
srf = pygame.display.set_mode((width, height), pygame.OPENGL | pygame.DOUBLEBUF)
pygame.display.set_caption("Interpolation test")
VG.create_context((width, height))
VG.set(VG_CLEAR_COLOR, (1.0, 1.0, 1.0, 1.0))
paths = []
path_tag = ".//{http://www.w3.org/2000/svg}path"
VG.set(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE)
VG.scale(5.0, 5.0)
doc = parse_svg("data/svg/shapes.svg")
for element in doc.findall(path_tag):
path = element.path.transform()
path.style = element.style
if not path.style:
path.style = VG.Style(VG_STROKE_LINE_WIDTH=5.0)
else:
path.style[VG_STROKE_LINE_WIDTH] *= 2
paths.append(path)
VG.load_identity()
morph = VG.Path()
start = paths[0]
end = paths[1]
morph.style = start.style
VG.set(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE)
VG.translate(220, 140)
clock = pygame.time.Clock()
running = True
dt = 0
i = 0
while running:
events = pygame.event.get()
for e in events:
if e.type == pygame.QUIT:
running = False
elif e.type == pygame.KEYDOWN:
if e.key == pygame.K_ESCAPE:
running = False
VG.clear((0, 0), (width, height))
morph.clear()
VG.interpolate(start, end, morph, dt/float(MORPH_TIME))
morph.draw(VG_STROKE_PATH)
pygame.display.flip()
dt += clock.tick(60)
if dt >= MORPH_TIME:
dt -= MORPH_TIME
i += 1
start = paths[i % len(paths)]
end = paths[(i+1) % len(paths)]
morph.style = start.style
def __init__(self):
VG.create_context((2048,2048))
def main(width, height, directory):
pygame.init()
pygame.display.gl_set_attribute(pygame.GL_STENCIL_SIZE, 2)
pygame.display.gl_set_attribute(pygame.GL_MULTISAMPLEBUFFERS, 1)
pygame.display.gl_set_attribute(pygame.GL_MULTISAMPLESAMPLES, 4)
screen = pygame.display.set_mode((width, height), pygame.OPENGL | pygame.DOUBLEBUF)
pygame.display.set_caption("SVG Viewer")
VG.create_context((width, height))
VG.set(VG_CLEAR_COLOR, (1.0, 1.0, 1.0, 1.0))
register_font_finder(pygame.font.match_font)
@register_font_finder
def fallback_font(name):
fname = pygame.font.get_default_font()
return os.path.join(os.path.dirname(pygame.font.__file__), fname)
vera = Font("data/fonts/Vera.ttf", 16)
text = vera.build_path("Scroll to change svg files. Drag to see more.")
drawings = []
for root, dirs, files in os.walk(directory):
for fname in files:
if not fname.endswith(".svg"):
continue
path = os.path.join(root, fname)
try:
tree = parse_svg(path)
name = vera.build_path(fname, 16)
tree.getroot().fit(width, height)
drawings.append((tree.getroot(), name))
except:
print "Error in loading %s" % path
traceback.print_exc(0)
dragging = False
dx = dy = 0
i = 0
scale = 1
drawing, name = drawings[0]
(x,y), (w,h) = drawing.bounds()
running = True
while running:
events = pygame.event.get()
for e in events:
if e.type == pygame.QUIT:
running = False
elif e.type == pygame.KEYDOWN:
if e.key == pygame.K_ESCAPE:
running = False
elif e.key == pygame.K_1:
scale = 1
elif e.key == pygame.K_2:
scale = 2
elif e.key == pygame.K_3:
scale = 3
elif e.key == pygame.K_4:
scale = 4
elif e.key == pygame.K_5:
scale = 5
elif e.key == pygame.K_6:
scale = 6
elif e.key == pygame.K_7:
scale = 7
elif e.key == pygame.K_8:
scale = 8
elif e.key == pygame.K_9:
scale = 9
elif e.key == pygame.K_EQUALS:
i += 1
drawing, name = drawings[i % len(drawings)]
(x,y), (w,h) = drawing.bounds()
elif e.key == pygame.K_MINUS:
i -= 1
drawing, name = drawings[i % len(drawings)]
(x,y), (w,h) = drawing.bounds()
elif e.type == pygame.MOUSEBUTTONDOWN:
if e.button == 1 or e.button == 2 or e.button == 3:
dragging = True
else:
if e.button == 4:
i += 1
else:
i -= 1
drawing, name = drawings[i % len(drawings)]
(x,y), (w,h) = drawing.bounds()
elif e.type == pygame.MOUSEBUTTONUP:
if e.button == 1 or e.button == 2 or e.button == 3:
dragging = False
elif e.type == pygame.MOUSEMOTION:
if dragging:
dx += e.rel[0]/2.0**(scale-1)
dy -= e.rel[1]/2.0**(scale-1)
VG.clear((0, 0), (width, height))
VG.load_identity()
VG.scale(2**(scale-1),2**(scale-1))
VG.translate(width/2.0-w/2.0-x+dx, height/2.0-h/2.0-y+dy)
drawing.draw()
VG.load_identity()
VG.translate(10, 10)
text.draw(VG_FILL_PATH)
VG.translate(text.bounds()[1][0]+10, 0)
name.draw(VG_FILL_PATH)
pygame.display.flip()
def render(self):
if (pe.square_a != 0.0 and pe.vg_mode == 3):
VG.set(VG_STROKE_LINE_WIDTH, 15.0)
fill_paint = VG.ColorPaint((pe.square_r, pe.square_g, pe.square_b, pe.square_a))
stroke_paint = VG.ColorPaint(( 0.65 + 0.350*( 0.60*math.sin(0.742*pe.time) +
0.40*math.sin(1.021*pe.time) ),
0.65 + 0.350*( 0.60*math.sin(0.703*pe.time) +
0.40*math.sin(0.969*pe.time) ),
0.65 + 0.350*( 0.60*math.sin(1.090*pe.time) +
0.40*math.sin(0.963*pe.time) ),
pe.square_a))
VG.set_paint(fill_paint, VG_FILL_PATH)
VG.set_paint(stroke_paint, VG_STROKE_PATH)
p = VG.Path(capabilities=VG_PATH_CAPABILITY_APPEND_TO)
vx=self.vr*math.cos(self.vt)
vy=self.vr*math.sin(self.vt)
p.move_to((self.x,self.y))
self.x+=vx
self.y+=vy
p.line_to((self.x,self.y))
VG.set(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE)
VG.load_identity()
VG.scale(0.001, 0.001)
p.draw(VG_STROKE_PATH);
if random()<.01:
self.at = 0
if self.x<-1000 or self.x>1000 or self.y<-1000 or self.y>1000:
self.x=0
self.y=0
self.vt += (random()-.5)*.1
self.vt += self.at
self.at += (random()-.5)*.1
def render(self):
if pe.vg_mode == 1:
smack = 1 / 2048.0
glScale(smack, smack, 1.0)
# VG.set(VG_STROKE_JOIN_STYLE, VG_JOIN_ROUND)
VG.set(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE)
VG.load_identity()
VG.scale(1.0 / smack, 1.0 / smack)
p = VG.Path()
p.move_to((0, 0))
VG.set(VG_STROKE_LINE_WIDTH, 0.01)
# VGU.rect(p, (0,0), (pe.q1,pe.q2))
# VGU.rect(p, (0,0), (x,y))
# VGU.arc(p, (0,0), (pe.q1,pe.q2),
# 0, 2*pi,
# 0xF100)
# VGU.arc(p, (0,0), (.5,.5), 0, 90, 0xF100)
# r = pe.q1
# p.move_to((0,r))
# p.arc_to((r,0), r, r, 0, False, False)
# paint = VG.ColorPaint((0.0, 1.0, 1.0, 1.0))
# VG.set_paint(paint, VG_STROKE_PATH)
# p.draw(VG_STROKE_PATH);
# self.wheel(NUM_SEGMENTS, DUTY_CYCLE, OUTER_RADIUS, INNER_RADIUS, LINE_WIDTH,
# 0, 1, 1)
RADIUS = 0.2 * (sin(pe.time) + 1.0) / 2.0 * 3.0
COUNT = 10
SIZE = 0.2
BIAS = pe.time / COUNT * 2 * pi
for i in range(0, COUNT):
saved = VG.get_matrix()
angle = 2 * pi * (float(i) / COUNT) + BIAS
VG.translate(RADIUS * cos(angle), RADIUS * sin(angle))
VG.scale(SIZE, SIZE)
VG.rotate(pe.time * 2 * pi * 10.0 + float(i) / COUNT * 2 * pi * 2.0)
self.wheel(5, DUTY_CYCLE, OUTER_RADIUS, INNER_RADIUS, LINE_WIDTH, float(COUNT), 1, 1)
VG.load_matrix(saved)
return
GRID_X = 5
GRID_Y = 5
idx = 0
seed(int(pe.time))
step = pe.time - int(pe.time)
phase = sin(step * pi)
for j in range(0, GRID_Y):
for i in range(0, GRID_X):
saved = VG.get_matrix()
VG.translate((i + 0.5) / GRID_X * 2 - 1, (j + 0.5) / GRID_Y * 2 - 1)
VG.scale(2.0 / GRID_X, 2.0 / GRID_Y)
# if random() < .1:
# VG.scale(1.0+phase,1.0+phase)
VG.scale(pe.bass + 1.0, pe.treb + 1.0)
VG.rotate(float(i) / GRID_X * 360.0 * pe.time)
# awesome
# VG.translate(sin(pe.time+i/GRID_Y),0)
segments = min(j + 1, GRID_Y - j)
flag = True if ((j + 2) % (i + 2)) and ((i + 2) % (j + 2)) else False
self.wheel(
segments,
DUTY_CYCLE,
OUTER_RADIUS,
INNER_RADIUS,
LINE_WIDTH,
float(i) / GRID_X,
sin(float(i) / GRID_X * pi) + sin(pe.time) * 2 * pi,
1,
)
VG.load_matrix(saved)