540ac0e3
 杨鑫
前端修改bug
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const PX_PER_INCH = 96
const PX_PER_CM = 37.8
function toCanvasPx (value: number, unit: string): number {
const u = String(unit || 'inch').toLowerCase()
if (u === 'mm') return (value / 25.4) * PX_PER_INCH
if (u === 'cm') return value * PX_PER_CM
if (u === 'px') return value
return value * PX_PER_INCH
}
function fromCanvasPx (px: number, unit: string): number {
const u = String(unit || 'inch').toLowerCase()
if (u === 'mm') return (px * 25.4) / PX_PER_INCH
if (u === 'cm') return px / PX_PER_CM
if (u === 'px') return px
return px / PX_PER_INCH
}
function roundTemplateDim (value: number, unit: string): number {
const u = String(unit || 'inch').toLowerCase()
if (u === 'px') return Math.max(1, Math.round(value))
if (u === 'mm' || u === 'cm') return Math.round(value * 10) / 10
return Math.round(value * 1000) / 1000
}
function elementBottomPx (el: SystemTemplateElementBase): number {
const y = Number(el.y) || 0
const h = Math.max(0, Number(el.height) || 0)
let bottom = y + h
const type = String(el.type || '').toUpperCase()
const cfg = (el.config || {}) as Record<string, unknown>
if (type === 'BARCODE') {
const showText = String(cfg.showText ?? cfg.ShowText ?? 'true').toLowerCase() !== 'false'
if (showText) bottom += 28
else bottom += 4
}
if (type === 'QRCODE') bottom += 4
return bottom
}
/**
* 原生 printTemplate 的 SIZE 高度仅取自模板根 height，不会按元素自动增高；
* 条码/日期贴在底部时易被裁掉。与 systemTemplateAdapter.buildTscTemplate 增高逻辑对齐。
*/
/** 设计 px：元素最底边 + 留白，且不超过模板根 height（用于光栅出纸高度，避免整纸 5cm 空白） */
export function templateContentHeightPx (
template: Pick<SystemLabelTemplate, 'unit' | 'width' | 'height' | 'elements'>,
extraBottomPx = 14,
): number {
const unit = String(template.unit || 'inch')
const canvasH = Math.max(40, Math.round(toCanvasPx(Number(template.height) || 0, unit)))
const elements = template.elements || []
if (!elements.length) return canvasH
let maxBottom = 0
for (const el of elements) {
maxBottom = Math.max(maxBottom, elementBottomPx(el))
}
return Math.max(40, Math.min(canvasH, maxBottom + extraBottomPx))
}
export function ensureTemplateHeightCoversElements (
template: SystemLabelTemplate,
extraBottomPx = 14
): SystemLabelTemplate {
const unit = String(template.unit || 'inch')
const elements = template.elements || []
if (!elements.length) return template
let maxBottom = 0
for (const el of elements) {
maxBottom = Math.max(maxBottom, elementBottomPx(el))
}
const currentHpx = toCanvasPx(Number(template.height) || 0, unit)
const neededPx = maxBottom + extraBottomPx
if (neededPx <= currentHpx + 1) return template
return {
...template,
height: roundTemplateDim(fromCanvasPx(neededPx, unit), unit),
}
}
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540ac0e3
杨鑫
前端修改bug
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/** 打印/预览统一：模板根 width/height + unit → 物理毫米（与 NativeTemplateCommandBuilder.toMillimeter 一致） */
export function getTemplatePhysicalSizeMm (
template: Pick<SystemLabelTemplate, 'unit' | 'width' | 'height'>
): { widthMm: number; heightMm: number; unit: string } {
const unit = String(template.unit || 'inch')
const w = Number(template.width) || 0
const h = Number(template.height) || 0
const { widthMm, heightMm } = templateSizeToMillimeters(unit, w, h)
return { widthMm, heightMm, unit }
}
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59e51671
 “wangming”
1
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export function templateSizeToMillimeters (
unit: string | undefined,
width: number,
height: number
): { widthMm: number; heightMm: number } {
const u = String(unit || 'inch').toLowerCase()
let widthMm = 0
let heightMm = 0
if (u === 'mm') {
widthMm = width
heightMm = height
} else if (u === 'cm') {
widthMm = width * 10
heightMm = height * 10
} else if (u === 'px') {
widthMm = (width / DESIGN_DPI) * 25.4
heightMm = (height / DESIGN_DPI) * 25.4
} else {
widthMm = width * 25.4
heightMm = height * 25.4
}
return { widthMm, heightMm }
}
export function isTemplateWithinNativeFastPrintBounds (
template: Pick<SystemLabelTemplate, 'unit' | 'width' | 'height'>
): boolean {
const w = Number(template.width) || 0
const h = Number(template.height) || 0
if (w <= 0 || h <= 0) return false
const { widthMm, heightMm } = templateSizeToMillimeters(template.unit, w, h)
return widthMm <= NATIVE_FAST_MAX_WIDTH_MM && heightMm <= NATIVE_FAST_MAX_HEIGHT_MM
}
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