Method measureSize

packages/2d/src/lib/code/CodeCursor.ts:92–136

* Measure the desired size of the code scope. * * @remarks * The result can be retrieved with getSize. * * @param scope - The code scope to measure.

(scope: CodeScope)

   * @param scope - The code scope to measure.
   */
  public measureSize(scope: CodeScope) {
    const progress = unwrap(scope.progress);
    for (const wrapped of scope.fragments) {
      const possibleFragment = unwrap(wrapped);
      if (isCodeScope(possibleFragment)) {
        this.measureSize(possibleFragment);
        continue;
      }
      if (Array.isArray(possibleFragment)) {
        this.measureSize({
          progress: scope.progress,
          fragments: possibleFragment,
        });
        continue;
      }

      const fragment = parseCodeFragment(
        possibleFragment,
        this.context,
        this.monoWidth,
      );

      const beforeMaxWidth = this.calculateMaxWidth(fragment.before);
      const afterMaxWidth = this.calculateMaxWidth(fragment.after);

      const maxWidth = map(beforeMaxWidth, afterMaxWidth, progress);
      if (maxWidth > this.maxWidth) {
        this.maxWidth = maxWidth;
      }

      const beforeEnd = this.calculateWidth(fragment.before);
      const afterEnd = this.calculateWidth(fragment.after);
      this.cursor.x = map(beforeEnd, afterEnd, progress);

      if (this.cursor.y === 0) {
        this.cursor.y = 1;
      }

      this.cursor.y += map(
        fragment.before.newRows,
        fragment.after.newRows,
        progress,
      );
    }
  }

  /**
   * Get the size measured by the cursor.