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import bpy | |
from dataclasses import dataclass | |
from itertools import islice | |
@dataclass | |
class Rectangle: | |
x: float | |
y: float | |
width: float | |
height: float | |
def cut_image(old_path, new_path, rect): | |
image = bpy.data.images.load(old_path) | |
total_width, total_height = image.size | |
assert total_width >= rect.x + rect.width | |
assert total_height >= rect.y + rect.height | |
old_pixels = image.pixels | |
new_pixels = [] | |
for y in range(rect.y, rect.y + rect.height): | |
row_start = y * total_width + rect.x | |
row_end = row_start + rect.width | |
new_pixels.extend(old_pixels[4 * row_start:4 * row_end]) | |
image.scale(rect.width, rect.height) | |
image.pixels = new_pixels | |
image.filepath_raw = new_path | |
image.save() | |
bpy.data.images.remove(image) | |
def node_region_rect(region, node): | |
location = node.location | |
dimensions = node.dimensions | |
view_to_region = region.view2d.view_to_region | |
bottom_left = view_to_region(location.x, location.y - dimensions.y, clip=False) | |
top_right = view_to_region(location.x + dimensions.x, location.y, clip=False) | |
return Rectangle(bottom_left[0], bottom_left[1], top_right[0] - bottom_left[0], top_right[1] - bottom_left[1]) | |
def iter_node_names(): | |
for cls in bpy.types.CompositorNode.__subclasses__(): | |
yield cls.__name__ | |
class MakeScreenshotsOperator(bpy.types.Operator): | |
bl_idname = "test.make_screenshots" | |
bl_label = "Make Screenshots" | |
def invoke(self, context, event): | |
context.window_manager.modal_handler_add(self) | |
self.node_names_iterator = islice(iter_node_names(), 10000) | |
return self.prepare_next_node(context) | |
def prepare_next_node(self, context): | |
try: | |
node_name = next(self.node_names_iterator) | |
except: | |
return {'FINISHED'} | |
node_tree = context.space_data.node_tree | |
for node in node_tree.nodes: | |
node.location.x = 10000 | |
node = node_tree.nodes.new(node_name) | |
node.select = False | |
node.show_preview = False | |
self.current_node = node | |
self.current_name = node_name | |
return {'RUNNING_MODAL'} | |
def modal(self, context, event): | |
temp_path = f"/home/jacques/Downloads/temp.png" | |
filepath = f"/home/jacques/Downloads/compositing_node-types_{self.current_name}.png" | |
bpy.ops.screen.screenshot(full=False, filepath=temp_path) | |
rect = node_region_rect(context.region, self.current_node) | |
margin = 15 | |
rect.x -= margin | |
rect.y -= margin | |
rect.width += margin * 2 | |
rect.height += margin * 2 | |
bpy.ops.screen.screenshot(full=False,filepath=filepath) | |
cut_image(temp_path, filepath, rect) | |
context.area.tag_redraw() | |
return self.prepare_next_node(context) | |
bpy.utils.register_class(MakeScreenshotsOperator) |
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