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add general comments

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This commit is contained in:
reschan 2022-06-26 17:55:06 +07:00
parent d3c11a8a72
commit b9e04c4c9f
1 changed files with 7 additions and 2 deletions
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9
js/display_atree.js
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@ -167,7 +167,7 @@ function construct_AT(elem, tree) {
this.classList.add("atree-selected"); this.classList.add("atree-selected");
} }
atree_toggle_state(node); atree_toggle_state(node);
atree_update_connector(node); atree_update_connector();
}); });
document.getElementById("atree-row-" + node.display.row).children[node.display.col].appendChild(node_elem); document.getElementById("atree-row-" + node.display.row).children[node.display.col].appendChild(node_elem);
}; };
@ -175,7 +175,7 @@ function construct_AT(elem, tree) {
atree_render_connection(); atree_render_connection();
}; };
// resolve connector conflict // resolve connector conflict, when they occupy the same cell.
function resolve_connector(pos, node) { function resolve_connector(pos, node) {
if (atree_connectors_map.get(pos).length < 2) {return false;} if (atree_connectors_map.get(pos).length < 2) {return false;}
@ -228,6 +228,7 @@ function atree_render_connection() {
} }
} }
// toggle the state of a node.
function atree_toggle_state(node) { function atree_toggle_state(node) {
if (atree_map.get(node.display_name).active) { if (atree_map.get(node.display_name).active) {
atree_map.get(node.display_name).active = false; atree_map.get(node.display_name).active = false;
@ -236,6 +237,7 @@ function atree_toggle_state(node) {
} }
} }
// refresh all connector to default state, then try to calculate the connector for all node
function atree_update_connector() { function atree_update_connector() {
atree_connectors_map.forEach((v) => { atree_connectors_map.forEach((v) => {
if (v.length != 0) { if (v.length != 0) {
@ -247,6 +249,7 @@ function atree_update_connector() {
}); });
} }
// set the correct connector highlight for an active node, given a node.
function atree_compute_highlight(node) { function atree_compute_highlight(node) {
node.connectors.forEach((v, k) => { node.connectors.forEach((v, k) => {
if (node.active && atree_map.get(k).active) { if (node.active && atree_map.get(k).active) {
@ -266,6 +269,7 @@ function atree_compute_highlight(node) {
}); });
} }
// get the current active state of different directions, given a connector coordinate.
function atree_get_state(connector) { function atree_get_state(connector) {
let connector_state = {left: 0, right: 0, up: 0, down: 0} let connector_state = {left: 0, right: 0, up: 0, down: 0}
@ -305,6 +309,7 @@ function atree_get_state(connector) {
return connector_state; return connector_state;
} }
// parse a sequence of left, right, up, down to appropriate connector image
function atree_parse_connector(orient, type) { function atree_parse_connector(orient, type) {
// left, right, up, down // left, right, up, down
// todo // todo