Method printResult

pixelizer.js:1008–1046

()

    }

    async printResult() {
        if (!this.basePixelCanvas) {
            this.showError('没有可打印的图像');
            return;
        }
        
        try {
            // 创建10倍放大的打印canvas
            const printCanvas = document.createElement('canvas');
            const scale = 10;
            
            printCanvas.width = this.basePixelCanvas.width * scale;
            printCanvas.height = this.basePixelCanvas.height * scale;
            
            const ctx = printCanvas.getContext('2d');
            ctx.imageSmoothingEnabled = false;
            
            // 最近邻放大
            ctx.drawImage(
                this.basePixelCanvas, 
                0, 0, this.basePixelCanvas.width, this.basePixelCanvas.height,
                0, 0, printCanvas.width, printCanvas.height
            );
            
            // 绘制网格（按打印尺寸）
            if (document.getElementById('showPixelGrid').checked) {
                this.drawExportGrid(printCanvas, scale);
            }
            
            // 转换为dataURL并打印
            const dataURL = printCanvas.toDataURL('image/png');
            this.printFromDataURL(dataURL);
            this.showSuccess('打印窗口已打开！');
            
        } catch (error) {
            console.error('Print failed:', error);
            this.showError('打印失败: ' + error.message);
        }
    }

    printFromDataURL(dataURL) {
        const printWindow = window.open('', '_blank');