blob: 82ab36357c532d48d901654e8196b94e9365109c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
package comic
import (
"fmt"
"strconv"
"strings"
)
// DescribePageFrame returns human-readable page shape text for image prompts,
// derived from a Gemini-style aspect ratio such as "16:9" or "2:3".
func DescribePageFrame(aspectRatio string) string {
aspectRatio = strings.TrimSpace(aspectRatio)
if aspectRatio == "" {
aspectRatio = comicPageAspectRatio
}
parts := strings.Split(aspectRatio, ":")
if len(parts) != 2 {
return fmt.Sprintf("%s format", aspectRatio)
}
w, errW := strconv.Atoi(strings.TrimSpace(parts[0]))
h, errH := strconv.Atoi(strings.TrimSpace(parts[1]))
if errW != nil || errH != nil || w <= 0 || h <= 0 {
return fmt.Sprintf("%s format", aspectRatio)
}
switch {
case w < h:
if w == 3 && h == 4 {
return "portrait 3:4 format (ISO A4–class sheet: 210×297 mm target; image API uses 3:4 as the closest standard ratio)"
}
return fmt.Sprintf("portrait %s format (tall comic book page proportions)", aspectRatio)
case w > h:
return fmt.Sprintf("landscape %s format (widescreen)", aspectRatio)
default:
return fmt.Sprintf("square %s format", aspectRatio)
}
}
|
