25 lines
1.4 KiB
TypeScript
25 lines
1.4 KiB
TypeScript
import type { ImageDocument } from "@core/document";
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import type { EditorState } from "@editor/state";
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import { resolveTransformTargetBounds, selectedTransformTarget } from "@editor/transform-targets";
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import { clearScreenRect } from "./clear-rect";
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import { documentRectToScreenRect } from "./screen-rect";
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import type { RgbaColor, ScreenRect, WebGlRendererContext } from "./types";
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const selectionColor: RgbaColor = [0.1, 0.65, 1, 1];
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export function renderSelectionOverlay(context: WebGlRendererContext, document: ImageDocument, editor: EditorState) {
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const target = selectedTransformTarget(document, editor.selection);
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const bounds = target ? resolveTransformTargetBounds(document, target) : undefined;
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if (!bounds) return;
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const rect = documentRectToScreenRect(context.canvas, bounds, editor.viewport);
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renderScreenRectStroke(context, rect, 3, selectionColor);
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}
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function renderScreenRectStroke(context: WebGlRendererContext, rect: ScreenRect, width: number, color: RgbaColor) {
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clearScreenRect(context, { x: rect.x - width, y: rect.y - width, w: rect.w + width * 2, h: width }, color);
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clearScreenRect(context, { x: rect.x - width, y: rect.y + rect.h, w: rect.w + width * 2, h: width }, color);
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clearScreenRect(context, { x: rect.x - width, y: rect.y, w: width, h: rect.h }, color);
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clearScreenRect(context, { x: rect.x + rect.w, y: rect.y, w: width, h: rect.h }, color);
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}
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