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Remove simulation inputs when deleting outputs and vice versa #106597

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Lukas Tönne merged 4 commits from LukasTonne/blender:geometry-nodes-simulation-remove-paired into geometry-nodes-simulation 2023-04-05 18:28:47 +02:00
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Lukas Tönne commented 2023-04-05 17:25:27 +02:00
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To avoid unpaired simulation inputs or outputs, whenever deleting such
nodes the respective paired node should be deleted as well. A simple
utility function selects paired nodes before the delete operator removes
them.

This does not affect API methods, which still remove only individual
nodes. The feature is primarily a workflow improvement.

Resolves #105728

To avoid unpaired simulation inputs or outputs, whenever deleting such nodes the respective paired node should be deleted as well. A simple utility function selects paired nodes before the delete operator removes them. This does not affect API methods, which still remove only individual nodes. The feature is primarily a workflow improvement. Resolves #105728
Lukas Tönne added 1 commit 2023-04-05 17:25:38 +02:00
8e684c722a Remove simulation inputs when deleting outputs and vice versa. 
To avoid "orphaned" simulation inputs or outputs, whenever deleting such
nodes the respective paired node should be deleted as well. A simple
utility function selects paired nodes before the delete operator removes
them.

This does not affect API methods, which still remove only individual
nodes. The feature is primarily a workflow improvement.

Resolves #105728
Lukas Tönne requested review from Jacques Lucke 2023-04-05 17:25:54 +02:00
Hans Goudey requested changes 2023-04-05 17:38:05 +02:00
Hans Goudey left a comment
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I think this is a reasonable approach to implement this. Just a few inline comments.

I think this is a reasonable approach to implement this. Just a few inline comments.
source/blender/editors/space_node/node_intern.hh Outdated
@ -193,0 +193,4 @@
/**
* Select nodes that are paired to a selected node.
*/
void node_select_paired(bNodeTree *node_tree);
Hans Goudey commented 2023-04-05 17:35:12 +02:00
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Use a reference rather than a pointer if node_tree is expected to be non-null.

Use a reference rather than a pointer if `node_tree` is expected to be non-null.
LukasTonne marked this conversation as resolved
source/blender/editors/space_node/node_select.cc Outdated
@ -310,1 +310,4 @@
void node_select_paired(bNodeTree *node_tree)
{
for (bNode *node : node_tree->all_nodes()) {
Hans Goudey commented 2023-04-05 17:37:15 +02:00
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Rather than looping over all nodes, this could use nodes_by_type at the start too. That makes sense, since there are plenty of large node trees that don't use simulation nodes (or any paired nodes) at all, and it reduces reliance on bNode::type, which would be good to remove eventually.

Rather than looping over all nodes, this could use `nodes_by_type` at the start too. That makes sense, since there are plenty of large node trees that don't use simulation nodes (or any paired nodes) at all, and it reduces reliance on `bNode::type`, which would be good to remove eventually.
LukasTonne marked this conversation as resolved
source/blender/editors/space_node/node_select.cc Outdated
@ -311,0 +311,4 @@
void node_select_paired(bNodeTree *node_tree)
{
for (bNode *node : node_tree->all_nodes()) {
if (node->flag & NODE_SELECT) {
Hans Goudey commented 2023-04-05 17:34:47 +02:00
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It usually makes sense to flip the condition and use continue rather than indenting the rest of the function, I'd say that applies here too.

It usually makes sense to flip the condition and use `continue` rather than indenting the rest of the function, I'd say that applies here too.
LukasTonne marked this conversation as resolved
source/blender/editors/space_node/node_select.cc Outdated
@ -311,0 +313,4 @@
for (bNode *node : node_tree->all_nodes()) {
if (node->flag & NODE_SELECT) {
if (node->type == GEO_NODE_SIMULATION_INPUT) {
NodeGeometrySimulationInput *storage = static_cast<NodeGeometrySimulationInput *>(
Hans Goudey commented 2023-04-05 17:34:12 +02:00
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NodeGeometrySimulationInput * -> const NodeGeometrySimulationInput *

Here and below

`NodeGeometrySimulationInput *` -> `const NodeGeometrySimulationInput *` Here and below
LukasTonne marked this conversation as resolved
Hans Goudey changed title from Remove simulation inputs when deleting outputs and vice versa. to Remove simulation inputs when deleting outputs and vice versa 2023-04-05 17:38:25 +02:00
Lukas Tönne added 3 commits 2023-04-05 18:01:19 +02:00
Jacques Lucke approved these changes 2023-04-05 18:25:56 +02:00
Jacques Lucke requested review from Hans Goudey 2023-04-05 18:26:06 +02:00
Lukas Tönne merged commit c6d8da0e97 into geometry-nodes-simulation 2023-04-05 18:28:47 +02:00
Lukas Tönne deleted branch geometry-nodes-simulation-remove-paired 2023-04-05 18:28:49 +02:00
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Reference: blender/blender#106597
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