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* Add flags * Setup htmx * Rename files and functions
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| Original file line number | Diff line number | Diff line change |
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| ## Led-Matrix-UI | ||
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| WebUI to manage HUB75 LED Matrix Panels with the hzeller/rpi-rgb-led-matrix library | ||
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| Build with: | ||
| * Go-Gin | ||
| * Bootstrap | ||
| * htmx | ||
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| ## Usage | ||
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| Run as root to get access to the /dev GPIO | ||
| Configure it through the app flags | ||
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| ## Build | ||
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| TODO | ||
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| __Please feel free to report any issues or suggestions__ |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,48 @@ | ||
| package api | ||
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| import ( | ||
| "image" | ||
| "image/draw" | ||
| "log" | ||
| "os" | ||
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| "github.com/disintegration/imaging" | ||
| "github.com/gin-gonic/gin" | ||
| "github.com/zaggash/led-matrix-ui/display" | ||
| ) | ||
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| type Display struct { | ||
| *display.Config | ||
| } | ||
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| func New(c *display.Config) *Display { | ||
| return &Display{c} | ||
| } | ||
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| func drawImage(d *Display, p string) gin.HandlerFunc { | ||
| return gin.HandlerFunc(func(ctx *gin.Context) { | ||
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| imgPath := ctx.PostForm("Path") | ||
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| f, err := os.Open(imgPath) | ||
| if err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
| defer f.Close() | ||
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| img, _, err := image.Decode(f) | ||
| if err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
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| w, h := d.Matrix.Geometry() | ||
| d.Toolkit.Canvas.Clear() // Clear current display | ||
| img = imaging.Fill(img, w, h, imaging.Center, imaging.Lanczos) | ||
| draw.Draw(d.Toolkit.Canvas, d.Toolkit.Canvas.Bounds(), img, image.ZP, draw.Over) | ||
| d.Matrix.Render() | ||
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| // DEBUG: Print POST body request | ||
| // body, _ := io.ReadAll(ctx.Request.Body) | ||
| // println(string(body)) | ||
| }) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,66 @@ | ||
| package api | ||
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| import ( | ||
| "io/fs" | ||
| "log" | ||
| "net/http" | ||
| "os" | ||
| "path/filepath" | ||
| "strings" | ||
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| "github.com/gabriel-vasile/mimetype" | ||
| "github.com/gin-gonic/gin" | ||
| ) | ||
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| type localImage struct { | ||
| Name string | ||
| Path string | ||
| Size int64 // Size in bytes | ||
| MimeType string | ||
| } | ||
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| func listImages(rootFolder string) gin.HandlerFunc { | ||
| return gin.HandlerFunc(func(ctx *gin.Context) { | ||
| whitelistedMime := []string{""} | ||
| requestedMime := strings.ToLower(ctx.Param("mime")) | ||
| var images []localImage | ||
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| err := filepath.WalkDir(rootFolder, func(filename string, file fs.DirEntry, err error) error { | ||
| if !file.IsDir() { | ||
| switch requestedMime { | ||
| case "": | ||
| whitelistedMime = []string{"image/png", "image/gif", "image/jpeg"} | ||
| case "png": | ||
| whitelistedMime = []string{"image/png"} | ||
| case "gif": | ||
| whitelistedMime = []string{"image/gif"} | ||
| } | ||
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| fileMime, err := mimetype.DetectFile(filename) | ||
| if err != nil { | ||
| log.Println(err) | ||
| } | ||
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| if mimetype.EqualsAny(fileMime.String(), whitelistedMime...) { | ||
| info, err := os.Stat(filename) | ||
| if err != nil { | ||
| log.Println(err) | ||
| } | ||
| images = append(images, localImage{ | ||
| Name: info.Name(), | ||
| Path: filename, | ||
| Size: info.Size(), | ||
| MimeType: fileMime.String(), | ||
| }) | ||
| } | ||
| } | ||
| return nil | ||
| }) | ||
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| if err != nil { | ||
| log.Println(err) | ||
| } | ||
| ctx.JSON(http.StatusOK, images) | ||
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| }) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,9 @@ | ||
| package api | ||
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| import ( | ||
| "github.com/gin-gonic/gin" | ||
| ) | ||
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| func uploadFile(ctx *gin.Context) { | ||
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| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,63 @@ | ||
| package display | ||
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| import ( | ||
| "flag" | ||
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| rgbmatrix "github.com/zaggash/go-rpi-rgb-led-matrix" | ||
| ) | ||
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| var ( | ||
| rows = flag.Int("led-rows", 32, "number of rows supported") | ||
| cols = flag.Int("led-cols", 32, "number of columns supported") | ||
| parallel = flag.Int("led-parallel", 1, "number of daisy-chained panels") | ||
| chainLength = flag.Int("led-chain", 1, "number of displays daisy-chained") | ||
| pwm_bits = flag.Int("pwm-bits", 11, "set PWM bits used for output") | ||
| pwm_lsb_nanoseconds = flag.Int("pwm-lsb-nanoseconds", 130, "set base time-unit for the on-time in the lowest significant bit") | ||
| brightness = flag.Int("brightness", 80, "brightness (0-100)") | ||
| pixelMapperConfig = flag.String("pixel-mapper-config", "", "semicolon-separated list of pixel-mappers to arrange pixels") | ||
| hardware_mapping = flag.String("led-gpio-mapping", "adafruit-hat-pwm", "name of GPIO mapping used.") | ||
| show_refresh = flag.Bool("led-show-refresh", false, "show refresh rate.") | ||
| inverse_colors = flag.Bool("led-inverse", false, "switch if your matrix has inverse colors on") | ||
| disable_hardware_pulsing = flag.Bool("led-no-hardware-pulse", false, "don't use hardware pin-pulse generation") | ||
| ) | ||
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| type Config struct { | ||
| Matrix rgbmatrix.Matrix | ||
| Toolkit *rgbmatrix.ToolKit | ||
| Hardware rgbmatrix.HardwareConfig | ||
| } | ||
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| func New() (*Config, error) { | ||
| c := Config{} | ||
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| hwConfig := &rgbmatrix.DefaultConfig | ||
| hwConfig.Rows = *rows | ||
| hwConfig.Cols = *cols | ||
| hwConfig.Parallel = *parallel | ||
| hwConfig.ChainLength = *chainLength | ||
| hwConfig.PWMBits = *pwm_bits | ||
| hwConfig.PWMLSBNanoseconds = *pwm_lsb_nanoseconds | ||
| hwConfig.Brightness = *brightness | ||
| hwConfig.PixelMapperConfig = *pixelMapperConfig | ||
| hwConfig.HardwareMapping = *hardware_mapping | ||
| hwConfig.ShowRefreshRate = *show_refresh | ||
| hwConfig.InverseColors = *inverse_colors | ||
| hwConfig.DisableHardwarePulsing = *disable_hardware_pulsing | ||
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| c.Hardware = *hwConfig | ||
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| // create a new Matrix instance with the DefaultConfig | ||
| matrix, err := rgbmatrix.NewRGBLedMatrix(hwConfig) | ||
| c.Matrix = matrix | ||
| if err != nil { | ||
| return &c, err | ||
| } | ||
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| // create a ToolKit instance | ||
| toolkit := rgbmatrix.NewToolKit(matrix) | ||
| c.Toolkit = toolkit | ||
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| // clear canvas | ||
| err = toolkit.Canvas.Clear() | ||
| return &c, err | ||
| } |
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