Method drawFunctionPatterns

src/third-party/qrcodegen/index.ts:231–257

()

		// Reads this object's version field, and draws and marks all function modules.
		private drawFunctionPatterns(): void {
			// Draw horizontal and vertical timing patterns
			for (let i = 0; i < this.size; i++) {
				this.setFunctionModule(6, i, i % 2 == 0);
				this.setFunctionModule(i, 6, i % 2 == 0);
			}

			// Draw 3 finder patterns (all corners except bottom right; overwrites some timing modules)
			this.drawFinderPattern(3, 3);
			this.drawFinderPattern(this.size - 4, 3);
			this.drawFinderPattern(3, this.size - 4);

			// Draw numerous alignment patterns
			const alignPatPos: Array<int> = this.getAlignmentPatternPositions();
			const numAlign: int = alignPatPos.length;
			for (let i = 0; i < numAlign; i++) {
				for (let j = 0; j < numAlign; j++) {
					// Don't draw on the three finder corners
					if (!(i == 0 && j == 0 || i == 0 && j == numAlign - 1 || i == numAlign - 1 && j == 0))
						this.drawAlignmentPattern(alignPatPos[i], alignPatPos[j]);
				}
			}

			// Draw configuration data
			this.drawFormatBits(0);  // Dummy mask value; overwritten later in the constructor
			this.drawVersion();
		}


		// Draws two copies of the format bits (with its own error correction code)