| 415 | return canvas.Image(), nil |
| 416 | } |
| 417 | func drawArticleInfoBlock(uid int64, articles []article, fontdata []byte) (image.Image, error) { |
| 418 | canvas := gg.NewContext(1, 1) |
| 419 | err := canvas.ParseFontFace(fontdata, 100) |
| 420 | if err != nil { |
| 421 | return nil, err |
| 422 | } |
| 423 | titleW, titleH := canvas.MeasureString("背包信息") |
| 424 | front := 45.0 |
| 425 | err = canvas.ParseFontFace(fontdata, front) |
| 426 | if err != nil { |
| 427 | return nil, err |
| 428 | } |
| 429 | _, textH := canvas.MeasureString("高度") |
| 430 | |
| 431 | nameWOfFiest := 0.0 |
| 432 | nameWOfSecond := 0.0 |
| 433 | for i, info := range articles { |
| 434 | textW, _ := canvas.MeasureString(info.Name + "(" + info.Other + ")") |
| 435 | if i%2 == 0 && textW > nameWOfFiest { |
| 436 | nameWOfFiest = textW |
| 437 | } else if textW > nameWOfSecond { |
| 438 | nameWOfSecond = textW |
| 439 | } |
| 440 | } |
| 441 | valueW, _ := canvas.MeasureString("10000") |
| 442 | |
| 443 | if (10+nameWOfFiest+10+valueW+10)+(10+nameWOfSecond+10+valueW+10) > 980 { |
| 444 | front = 32.0 |
| 445 | err = canvas.ParseFontFace(fontdata, front) |
| 446 | if err != nil { |
| 447 | return nil, err |
| 448 | } |
| 449 | _, textH = canvas.MeasureString("高度") |
| 450 | |
| 451 | nameWOfFiest = 0 |
| 452 | nameWOfSecond = 0 |
| 453 | for i, info := range articles { |
| 454 | textW, _ := canvas.MeasureString(info.Name + "(" + info.Other + ")") |
| 455 | if i%2 == 0 && textW > nameWOfFiest { |
| 456 | nameWOfFiest = textW |
| 457 | } else if textW > nameWOfSecond { |
| 458 | nameWOfSecond = textW |
| 459 | } |
| 460 | } |
| 461 | valueW, _ = canvas.MeasureString("10000") |
| 462 | } |
| 463 | wallW := (980 - (10 + nameWOfFiest + 10 + valueW + 10) - (10 + nameWOfSecond + 10 + valueW + 10)) / 2 |
| 464 | backY := math.Max(10+int(titleH*1.6)+10+int(textH*2)*(math.Ceil(len(articles), 2)+1), 500) |
| 465 | canvas = gg.NewContext(1000, backY) |
| 466 | // 画底色 |
| 467 | canvas.DrawRectangle(0, 0, 1000, float64(backY)) |
| 468 | canvas.SetRGBA255(255, 255, 255, 150) |
| 469 | canvas.Fill() |
| 470 | // 边框框 |
| 471 | canvas.DrawRectangle(0, 0, 1000, float64(backY)) |
| 472 | canvas.SetLineWidth(3) |
| 473 | canvas.SetRGBA255(0, 0, 0, 255) |
| 474 | canvas.Stroke() |