139 lines
3.3 KiB
Go
139 lines
3.3 KiB
Go
/*
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Copyright © 2024 filifa
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package cmd
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import (
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"log"
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"os"
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"github.com/spf13/cobra"
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"github.com/veandco/go-sdl2/sdl"
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)
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var preset string
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var scriptPath string
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func handleWindowEvent(event *sdl.WindowEvent, m *milkDropWindow) {
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switch event.Event {
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case sdl.WINDOWEVENT_RESIZED:
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w, h := event.Data1, event.Data2
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m.resize(w, h)
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}
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}
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func handleKeyboardEvent(event *sdl.KeyboardEvent, m *milkDropWindow) {
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scancode := event.Keysym.Scancode
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if event.Type == sdl.KEYDOWN && scancode == sdl.SCANCODE_RIGHT && event.Repeat == 0 {
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m.nextPreset()
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} else if event.Type == sdl.KEYDOWN && scancode == sdl.SCANCODE_LEFT && event.Repeat == 0 {
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m.prevPreset()
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}
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}
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func handleEvent(event sdl.Event, m *milkDropWindow) bool {
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switch event.(type) {
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case *sdl.QuitEvent:
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return false
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case *sdl.WindowEvent:
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event := event.(*sdl.WindowEvent)
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handleWindowEvent(event, m)
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case *sdl.KeyboardEvent:
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event := event.(*sdl.KeyboardEvent)
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handleKeyboardEvent(event, m)
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}
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return true
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}
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func milkbucket(cmd *cobra.Command, args []string) {
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stat, err := os.Stdin.Stat()
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if err != nil {
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panic(err)
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} else if (stat.Mode() & os.ModeCharDevice) != 0 {
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log.Fatal("nothing to read from stdin")
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}
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err = sdl.Init(sdl.INIT_VIDEO)
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if err != nil {
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panic(err)
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}
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defer sdl.Quit()
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m, err := newMilkDropWindow(800, 600, scriptPath)
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if err != nil {
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panic(err)
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}
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defer m.destroy()
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if preset != "" {
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m.setupPresets([]string{preset})
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}
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m.loadPreset(false)
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running := true
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for running {
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for event := sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
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running = handleEvent(event, m)
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if !running {
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break
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}
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}
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if !running {
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break
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}
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running, err = m.render()
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if err != nil {
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panic(err)
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}
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}
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}
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// rootCmd represents the base command when called without any subcommands
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var rootCmd = &cobra.Command{
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Use: "milkbucket",
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Short: "Audio visualizer",
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Long: `milkbucket is an audio visualizer.
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It uses Milkdrop preset files to generate visualizations from standard input.`,
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Run: milkbucket,
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}
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// Execute adds all child commands to the root command and sets flags appropriately.
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// This is called by main.main(). It only needs to happen once to the rootCmd.
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func Execute() {
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err := rootCmd.Execute()
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if err != nil {
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os.Exit(1)
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}
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}
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func init() {
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// Here you will define your flags and configuration settings.
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// Cobra supports persistent flags, which, if defined here,
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// will be global for your application.
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// Cobra also supports local flags, which will only run
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// when this action is called directly.
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rootCmd.Flags().StringVarP(&preset, "preset", "p", "", "preset file to use")
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rootCmd.Flags().StringVarP(&scriptPath, "script", "s", "", "script file to use")
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rootCmd.MarkFlagsMutuallyExclusive("preset", "script")
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}
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