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authorPřemysl Janouch <p@janouch.name>2019-04-14 21:25:21 +0200
committerPřemysl Janouch <p@janouch.name>2019-04-14 21:25:21 +0200
commitea45784554bb02a107b6fdbcd8a352ff1197e08f (patch)
tree8d8e2f7c8e50915b905abbc9eb052d74132f1dbf
parent4dade55387515e3ed153a5901672abdfb7f3654f (diff)
downloadsklad-ea45784554bb02a107b6fdbcd8a352ff1197e08f.tar.gz
sklad-ea45784554bb02a107b6fdbcd8a352ff1197e08f.tar.xz
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sklad: import label printing capability from label-tool
Diffstat
-rw-r--r--label-tool/main.go52
-rw-r--r--sklad/db.go21
-rw-r--r--sklad/label.tmpl13
-rw-r--r--sklad/main.go56
4 files changed, 91 insertions, 51 deletions
diff --git a/label-tool/main.go b/label-tool/main.go
index 1d25b1b..b085bf8 100644
--- a/label-tool/main.go
+++ b/label-tool/main.go
@@ -4,60 +4,20 @@ import (
"errors"
"html/template"
"image"
- "image/draw"
"image/png"
"log"
"net/http"
"os"
"strconv"
- "github.com/boombuler/barcode"
- "github.com/boombuler/barcode/qr"
-
"janouch.name/sklad/bdf"
"janouch.name/sklad/imgutil"
+ "janouch.name/sklad/label"
"janouch.name/sklad/ql"
)
var font *bdf.Font
-func genLabelForHeight(text string, height, scale int) image.Image {
- // Create a scaled bitmap of the text label.
- textRect, _ := font.BoundString(text)
- textImg := image.NewRGBA(textRect)
- draw.Draw(textImg, textRect, image.White, image.ZP, draw.Src)
- font.DrawString(textImg, image.ZP, text)
-
- scaledTextImg := imgutil.Scale{Image: textImg, Scale: scale}
- scaledTextRect := scaledTextImg.Bounds()
-
- remains := height - scaledTextRect.Dy() - 20
-
- width := scaledTextRect.Dx()
- if remains > width {
- width = remains
- }
-
- // Create a scaled bitmap of the QR code.
- qrImg, _ := qr.Encode(text, qr.H, qr.Auto)
- qrImg, _ = barcode.Scale(qrImg, remains, remains)
- qrRect := qrImg.Bounds()
-
- // Combine.
- combinedRect := image.Rect(0, 0, width, height)
- combinedImg := image.NewRGBA(combinedRect)
- draw.Draw(combinedImg, combinedRect, image.White, image.ZP, draw.Src)
- draw.Draw(combinedImg,
- combinedRect.Add(image.Point{X: (width - qrRect.Dx()) / 2, Y: 0}),
- qrImg, image.ZP, draw.Src)
-
- target := image.Rect(
- (width-scaledTextRect.Dx())/2, qrRect.Dy()+20,
- combinedRect.Max.X, combinedRect.Max.Y)
- draw.Draw(combinedImg, target, &scaledTextImg, scaledTextRect.Min, draw.Src)
- return combinedImg
-}
-
var tmpl = template.Must(template.New("form").Parse(`
<!DOCTYPE html>
<html><body>
@@ -183,12 +143,12 @@ func handle(w http.ResponseWriter, r *http.Request) {
params.Scale = 3
}
- var label image.Image
+ var img image.Image
if mediaInfo != nil {
- label = &imgutil.LeftRotate{Image: genLabelForHeight(
- params.Text, mediaInfo.PrintAreaPins, params.Scale)}
+ img = &imgutil.LeftRotate{Image: label.GenLabelForHeight(
+ font, params.Text, mediaInfo.PrintAreaPins, params.Scale)}
if r.FormValue("print") != "" {
- if err := printer.Print(label); err != nil {
+ if err := printer.Print(img); err != nil {
log.Println("print error:", err)
}
}
@@ -206,7 +166,7 @@ func handle(w http.ResponseWriter, r *http.Request) {
}
w.Header().Set("Content-Type", "image/png")
- if err := png.Encode(w, label); err != nil {
+ if err := png.Encode(w, img); err != nil {
http.Error(w, err.Error(), 500)
return
}
diff --git a/sklad/db.go b/sklad/db.go
index aae695f..def18a5 100644
--- a/sklad/db.go
+++ b/sklad/db.go
@@ -7,6 +7,8 @@ import (
"os"
"strings"
"time"
+
+ "janouch.name/sklad/bdf"
)
type Series struct {
@@ -46,6 +48,9 @@ type Database struct {
Prefix string // prefix for all container IDs
Series []*Series // all known series
Containers []*Container // all known containers
+
+ BDFPath string // path to bitmap font file
+ BDFScale int // integer scaling for the bitmap font
}
var (
@@ -57,6 +62,8 @@ var (
indexSeries = map[string]*Series{}
indexContainer = map[ContainerId]*Container{}
indexChildren = map[ContainerId][]*Container{}
+
+ labelFont *bdf.Font
)
// TODO: Some functions to add, remove and change things in the database.
@@ -192,6 +199,20 @@ func loadDatabase() error {
}
}
+ // Prepare label printing.
+ if db.BDFScale <= 0 {
+ db.BDFScale = 1
+ }
+
+ if f, err := os.Open(db.BDFPath); err != nil {
+ return fmt.Errorf("cannot load label font: %s", err)
+ } else {
+ defer f.Close()
+ if labelFont, err = bdf.NewFromBDF(f); err != nil {
+ return fmt.Errorf("cannot load label font: %s", err)
+ }
+ }
+
// Open database log file for appending.
if dbLog, err = os.OpenFile(dbPath+".log",
os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644); err != nil {
diff --git a/sklad/label.tmpl b/sklad/label.tmpl
new file mode 100644
index 0000000..da17c58
--- /dev/null
+++ b/sklad/label.tmpl
@@ -0,0 +1,13 @@
+{{ define "Title" }}Tisk štítku{{ end }}
+{{ define "Content" }}
+<h2>Tisk štítku pro {{ .Id }}</h2>
+
+{{ if .UnknownId }}
+<p>Neznámý obal.
+{{ else if .Error }}
+<p>Tisk selhal: {{ .Error }}
+{{ else }}
+<p>Tisk proběhl úspěšně.
+{{ end }}
+
+{{ end }}
diff --git a/sklad/main.go b/sklad/main.go
index 9df1fd5..9a7be68 100644
--- a/sklad/main.go
+++ b/sklad/main.go
@@ -1,6 +1,7 @@
package main
import (
+ "errors"
"html/template"
"io"
"log"
@@ -9,6 +10,10 @@ import (
"os"
"path/filepath"
"time"
+
+ "janouch.name/sklad/imgutil"
+ "janouch.name/sklad/label"
+ "janouch.name/sklad/ql"
)
var templates = map[string]*template.Template{}
@@ -170,18 +175,59 @@ func handleSearch(w http.ResponseWriter, r *http.Request) {
executeTemplate("search.tmpl", w, &params)
}
+func printLabel(id string) error {
+ printer, err := ql.Open()
+ if err != nil {
+ return err
+ }
+ if printer == nil {
+ return errors.New("no suitable printer found")
+ }
+ defer printer.Close()
+
+ printer.StatusNotify = func(status *ql.Status) {
+ log.Printf("\x1b[1mreceived status\x1b[m\n%+v\n%s",
+ status[:], status)
+ }
+
+ if err := printer.Initialize(); err != nil {
+ return err
+ }
+ if err := printer.UpdateStatus(); err != nil {
+ return err
+ }
+
+ mediaInfo := ql.GetMediaInfo(
+ printer.LastStatus.MediaWidthMM(),
+ printer.LastStatus.MediaLengthMM(),
+ )
+ if mediaInfo == nil {
+ return errors.New("unknown media")
+ }
+
+ return printer.Print(&imgutil.LeftRotate{Image: label.GenLabelForHeight(
+ labelFont, id, mediaInfo.PrintAreaPins, db.BDFScale)})
+}
+
func handleLabel(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodPost {
w.WriteHeader(http.StatusMethodNotAllowed)
return
}
- id := r.FormValue("id")
- _ = id
-
- // TODO: See if such a container exists, print a label on the printer.
+ params := struct {
+ Id string
+ UnknownId bool
+ Error error
+ }{
+ Id: r.FormValue("id"),
+ }
- params := struct{}{}
+ if c := indexContainer[ContainerId(params.Id)]; c == nil {
+ params.UnknownId = true
+ } else {
+ params.Error = printLabel(params.Id)
+ }
executeTemplate("label.tmpl", w, &params)
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-16 05:39:04 +0000