diff options
Diffstat (limited to 'src/lib.ts')
| -rw-r--r-- | src/lib.ts | 27 |
1 files changed, 24 insertions, 3 deletions
@@ -40,9 +40,10 @@ export class LayoutTree { // Attempts layout of TolNode tree, for an area with given xy-coordinate and width+height (in pixels) // 'allowCollapse' allows the layout algorithm to collapse nodes to avoid layout failure // 'chg' allows for performing layout after expanding/collapsing a node - tryLayout(pos: [number,number], dims: [number,number], allowCollapse: boolean = false, chg?: LayoutTreeChg){ + tryLayout(root: LayoutNode, pos: [number,number], dims: [number,number], allowCollapse: boolean = false, + chg?: LayoutTreeChg){ // Create a new LayoutNode tree, keeping the old one in case of layout failure - let tempTree = this.root.cloneNodeTree(chg); + let tempTree = root.cloneNodeTree(chg); let success: boolean; switch (this.options.layoutType){ case 'sqr': success = sqrLayout(tempTree, pos, dims, true, allowCollapse, this.options); break; @@ -50,7 +51,11 @@ export class LayoutTree { case 'sweep': success = sweepLayout(tempTree, pos, dims, true, allowCollapse, this.options); break; } if (success){ - tempTree.copyTreeForRender(this.root); + // Center root in layout area + tempTree.pos[0] = (dims[0] - tempTree.dims[0]) / 2; + tempTree.pos[1] = (dims[1] - tempTree.dims[1]) / 2; + // Apply to active LayoutNode tree + tempTree.copyTreeForRender(root); } return success; } @@ -77,6 +82,7 @@ export class LayoutNode { dims: [number, number]; showHeader: boolean; sepSweptArea: SepSweptArea | null; + hidden: boolean; // Used for layout heuristics and info display dCount: number; // Number of descendant leaf nodes depth: number; // Number of ancestor nodes @@ -90,6 +96,7 @@ export class LayoutNode { this.dims = [0,0]; this.showHeader = false; this.sepSweptArea = null; + this.hidden = false; this.dCount = children.length == 0 ? 1 : arraySum(children.map(n => n.dCount)); this.depth = 0; this.empSpc = 0; @@ -155,6 +162,20 @@ export class LayoutNode { node = node.parent; } } + // + static hideUpward(node: LayoutNode){ + if (node.parent != null){ + node.parent.hidden = true; + node.parent.children.filter(n => n != node).forEach(n => LayoutNode.hideDownward(n)); + LayoutNode.hideUpward(node.parent); + } + } + static hideDownward(node: LayoutNode){ + node.hidden = true; + node.children.forEach(n => { + LayoutNode.hideDownward(n) + }); + } } export type LayoutTreeChg = { type: 'expand' | 'collapse'; |