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rotatable HalfSplitLayoutPart

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This commit is contained in:
Eon S. Jeon 2020-07-24 08:02:26 +09:00
parent 87bf403f6d
commit eadea76c57
1 changed files with 26 additions and 3 deletions
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29
src/layouts/layoutpart.ts
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@ -17,14 +17,34 @@ class FillLayoutPart implements ILayoutPart {
}
class HalfSplitLayoutPart<L extends ILayoutPart, R extends ILayoutPart> implements ILayoutPart {
/** the rotation angle for this part.
*
* | angle | direction | primary |
* | ----- | ---------- | ------- |
* | 0 | horizontal | left |
* | 90 | vertical | top |
* | 180 | horizontal | right |
* | 270 | vertical | bottom |
*/
public angle: 0 | 90 | 180 | 270;
public gap: number;
public primarySize: number;
public ratio: number;
private get horizontal(): boolean {
return this.angle === 0 || this.angle === 180;
}
private get reversed(): boolean {
return this.angle === 180 || this.angle === 270;
}
constructor(
public primary: L,
public secondary: R,
) {
this.angle = 0;
this.gap = 0;
this.primarySize = 1;
this.ratio = 0.5;
@ -49,12 +69,14 @@ class HalfSplitLayoutPart<L extends ILayoutPart, R extends ILayoutPart> implemen
this.ratio = LayoutUtils.adjustAreaHalfWeights(
area,
this.ratio,
(this.reversed) ? 1 - this.ratio: this.ratio,
this.gap,
targetIndex,
delta,
true,
this.horizontal,
);
if (this.reversed)
this.ratio = 1 - this.ratio;
if (targetIndex === /* primary */ 0) {
this.primary.adjust(area, tiles.slice(0, this.primarySize), basis, delta);
@ -73,7 +95,8 @@ class HalfSplitLayoutPart<L extends ILayoutPart, R extends ILayoutPart> implemen
return this.secondary.apply(area, tiles);
} else {
/* both parts */
const [primaryArea, secondaryArea] = LayoutUtils.splitAreaHalfWeighted(area, this.ratio, this.gap, true);
const ratio = (this.reversed) ? 1 - this.ratio: this.ratio;
const [primaryArea, secondaryArea] = LayoutUtils.splitAreaHalfWeighted(area, ratio, this.gap, this.horizontal);
const primaryResult = this.primary.apply(primaryArea, tiles.slice(0, this.primarySize));
const secondaryResult = this.secondary.apply(secondaryArea, tiles.slice(this.primarySize));
return primaryResult.concat(secondaryResult);