diff options
| -rwxr-xr-x | moon.py | 97 |
1 files changed, 97 insertions, 0 deletions
@@ -335,11 +335,108 @@ class MoonActivity(activity.Activity): mask_pixbuf.draw_arc(kgc, True, HALF_SIZE - int(arc_scale / 2), 0, arc_scale, IMAGE_SIZE, 5760, 11520) maskgc = self.image_pixbuf.new_gc(clip_mask=mask_pixbuf) ''' + + # SAMPLE CODE BEGINS # Modified image based on public domain photo by John MacCooey moon_pixbuf = self.moon_stamp.scale_simple(IMAGE_SIZE, IMAGE_SIZE, GdkPixbuf.InterpType.BILINEAR) self.image.set_from_pixbuf(moon_pixbuf) + + #mask_pixbuf fix + + surface = cairo.ImageSurface(cairo.FORMAT_RGB24, 200, 200) + + source = cairo.ImageSurface(cairo.FORMAT_RGB24, 200, 200) + + mask = cairo.ImageSurface(cairo.FORMAT_A1, 200, 200) + + # create mask + cr = cairo.Context(mask) + cr.set_operator(cairo.OPERATOR_SOURCE) + + cr.set_source_rgba(0,0,0,1) + cr.paint() + + cr.set_source_rgba(0,0,0,0) + cr.move_to(90,90) + cr.line_to(110,90) + cr.line_to(110,110) + cr.line_to(90,110) + cr.line_to(90,90) + cr.fill() + + mask.write_to_png("mask.png") + + # create a source image + cr = cairo.Context(source) + cr.set_operator(cairo.OPERATOR_SOURCE) + cr.set_source_rgb(1,0,0) + cr.move_to(50,50) + cr.line_to(150,50) + cr.line_to(150,150) + cr.line_to(50,150) + cr.line_to(50,50) + cr.fill() + source.write_to_png("source.png") + + # create final surface image + cr = cairo.Context(surface) + cr.set_operator(cairo.OPERATOR_SOURCE) + + # create a small green block and then write over with a larger block + cr.set_source_rgb(0,1,0) + cr.move_to(50,50) + cr.line_to(150,50) + cr.line_to(150,150) + cr.line_to(50,150) + cr.line_to(50,50) + cr.fill() + + # apply source image through mask + cr.set_source_surface(source) + cr.mask_surface(mask) + + surface.write_to_png("surface.png") + + # now try the same thing with a greyscale (alpha) surface + + surface = cairo.ImageSurface(cairo.FORMAT_A8, 200, 200) + + source = cairo.ImageSurface(cairo.FORMAT_A8, 200, 200) + + # create a source image + cr = cairo.Context(source) + cr.set_operator(cairo.OPERATOR_SOURCE) + cr.set_source_rgba(0,0,0,0.5) + cr.move_to(50,50) + cr.line_to(150,50) + cr.line_to(150,150) + cr.line_to(50,150) + cr.line_to(50,50) + cr.fill() + source.write_to_png("source_8.png") + + # create final surface image + cr = cairo.Context(surface) + cr.set_operator(cairo.OPERATOR_SOURCE) + + # create a small green block and then write over with a larger block + cr.set_source_rgba(0,0,0,0.2) + cr.move_to(50,50) + cr.line_to(150,50) + cr.line_to(150,150) + cr.line_to(50,150) + cr.line_to(50,50) + cr.fill() + + # apply source image through mask + cr.set_source_surface(source) + cr.mask_surface(mask) + + surface.write_to_png("surface_8.png") + + # SAMPLE CODE ENDS HERE ''' # Composite bright Moon image and semi-transparant Moon for shadow detail |