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import ctypes |
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from pypen.drawing.color import Color |
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import cairo |
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from pyglet import gl, image |
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class PrimitivesDrawer(): |
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def __init__(self, settings): |
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self.settings = settings |
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self.surface_data = None |
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self.surface = None |
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self.context = None |
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self.update_settings(settings) |
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def rotate(self, angle=0): |
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self.context.rotate(angle) |
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def translate(self, x=0, y=0): |
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self.context.translate(x, y) |
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def scale(self, factor=1): |
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self.context.scale(factor) |
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def save(self): |
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self.context.save() |
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def restore(self): |
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self.context.restore() |
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def update_settings(self, settings): |
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self.settings = settings |
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self.surface_data = (ctypes.c_ubyte * (self.settings.width * self.settings.height * 4))() |
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self.surface = cairo.ImageSurface.create_for_data(self.surface_data, |
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cairo.FORMAT_ARGB32, |
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self.settings.width, |
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self.settings.height, |
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self.settings.width * 4) |
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self.context = cairo.Context(self.surface) |
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self.texture = image.Texture.create_for_size(gl.GL_TEXTURE_2D, self.settings.width, self.settings.height, gl.GL_RGBA) |
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def clear_screen(self): |
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self.fill_screen("default_background_color") |
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def clear(self): |
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self.clear_screen() |
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def fill_screen(self, color="default_background_color"): |
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self.context.save() |
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self.context.scale(self.settings.width, self.settings.height) |
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self.rectangle(0, 0, 1, 1, color) |
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self.context.restore() |
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def fill(self): |
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pass |
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def rectangle(self, x, y, width, height, color="default_color"): |
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color = Color.from_user_input(color) |
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self.context.set_source_rgba(*color.rgba()) |
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self.context.rectangle(x, y, width, height) |
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self.context.fill() |
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def circle(self, x, y, radius, color="default_color"): |
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color = Color.from_user_input(color) |
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self.context.set_source_rgba(*color.rgba()) |
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self.context.arc(x, y, radius, 0, 3.141593*2) |
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self.context.fill() |
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72
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def ellipse(self, x, y, width, height, color="default_color"): |
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color = Color.from_user_input(color) |
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display = pygame.display.get_surface() |
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rect_x = int(x - width/2) |
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rect_y = int(y - height/2) |
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pygame.draw.ellipse(display, color.rgba(), (rect_x, rect_y, int(width), int(height))) |
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80
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def arc(self, x, y, radius, start_angle, stop_angle, color="default_color"): |
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color = Color.from_user_input(color) |
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self.context.set_source_rgba(*color.rgba()) |
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self.context.set_line_width(1.4) |
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self.context.arc(x, y, radius, start_angle, stop_angle) |
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self.context.stroke() |
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Canvim /
PyPen
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