From 1b6d45ad306ded762f7e7f7420bfa0fdc9012065 Mon Sep 17 00:00:00 2001
From: Utsav Singh <singhutsavofficial@gmail.com>
Date: Sun, 11 Aug 2024 11:59:34 +0530
Subject: [PATCH] Respect 'Clip' on Artboards when exporting "All Artworks".
 (#1916)

* Add constraint_bounds function to Quad implementation

* Respect Clip property when exporting All Artworks and centering document using the ctrl + 0 hotkey.
Calculate  artboard_clip_bounds  and then constraint the  all_layer_bounds  to respect the bounds of the Clipped Artboards.

* Use parent_artboard to find ancestor artboards of each layer and constrain bounds if artboard is clipped

* Remove redundant comments
---
 .../utility_types/network_interface.rs        | 27 ++++++++++++++++++-
 .../src/graphic_element/renderer/quad.rs      |  8 ++++++
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/editor/src/messages/portfolio/document/utility_types/network_interface.rs b/editor/src/messages/portfolio/document/utility_types/network_interface.rs
index 5f48e3a6..531f15b5 100644
--- a/editor/src/messages/portfolio/document/utility_types/network_interface.rs
+++ b/editor/src/messages/portfolio/document/utility_types/network_interface.rs
@@ -905,6 +905,15 @@ impl NodeNetworkInterface {
 			.is_some_and(|reference| reference == "Artboard" && self.connected_to_output(node_id, &[]))
 	}
 
+	pub fn parent_artboard(&self, layer: LayerNodeIdentifier) -> Option<LayerNodeIdentifier> {
+		let ancestors: Vec<_> = layer.ancestors(self.document_metadata()).collect();
+		match ancestors.as_slice() {
+			[_, second_last, _last] if self.is_artboard(&second_last.to_node(), &[]) => Some(*second_last),
+			[_, last] if self.is_artboard(&last.to_node(), &[]) => Some(*last),
+			_ => None,
+		}
+	}
+
 	pub fn all_artboards(&self) -> HashSet<LayerNodeIdentifier> {
 		self.network_metadata(&[])
 			.unwrap()
@@ -949,7 +958,23 @@ impl NodeNetworkInterface {
 		self.document_metadata
 			.all_layers()
 			.filter(|layer| include_artboards || !self.is_artboard(&layer.to_node(), &[]))
-			.filter_map(|layer| self.document_metadata.bounding_box_document(layer))
+			.filter_map(|layer| {
+				if !self.is_artboard(&layer.to_node(), &[]) {
+					if let Some(artboard_node_identifier) = self.parent_artboard(layer) {
+						let artboard = self.network(&[]).unwrap().nodes.get(&artboard_node_identifier.to_node());
+						let clip_input = artboard.unwrap().inputs.get(5).unwrap();
+						if let NodeInput::Value { tagged_value, .. } = clip_input {
+							if tagged_value.to_primitive_string() == "true" {
+								return Some(Quad::constraint_bounds(
+									self.document_metadata.bounding_box_document(layer).unwrap_or_default(),
+									self.document_metadata.bounding_box_document(artboard_node_identifier).unwrap_or_default(),
+								));
+							}
+						}
+					}
+				}
+				self.document_metadata.bounding_box_document(layer)
+			})
 			.reduce(Quad::combine_bounds)
 	}
 
diff --git a/node-graph/gcore/src/graphic_element/renderer/quad.rs b/node-graph/gcore/src/graphic_element/renderer/quad.rs
index e131b8bd..fa905804 100644
--- a/node-graph/gcore/src/graphic_element/renderer/quad.rs
+++ b/node-graph/gcore/src/graphic_element/renderer/quad.rs
@@ -49,6 +49,14 @@ impl Quad {
 		[a[0].min(b[0]), a[1].max(b[1])]
 	}
 
+	/// "Clip" bounds of 'a' to the limits of 'b'
+	pub fn constraint_bounds(a: [DVec2; 2], b: [DVec2; 2]) -> [DVec2; 2] {
+		[
+			a[0].max(b[0]), // Constrain min corner
+			a[1].min(b[1]), // Constrain max corner
+		]
+	}
+
 	/// Expand a quad by a certain amount on all sides.
 	///
 	/// Not currently very optimised