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//
// rhlibrary
//
// The Radio Helsinki Rivendell Library
//
//
// Copyright (C) 2016 Christian Pointner <equinox@helsinki.at>
//
// This file is part of rhlibrary.
//
// rhlibrary is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// any later version.
//
// rhlibrary is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with rhlibrary. If not, see <http://www.gnu.org/licenses/>.
//
package main
import (
"time"
"code.helsinki.at/rhrd-go/player"
"github.com/gotk3/gotk3/glib"
"github.com/gotk3/gotk3/gtk"
)
func addPlayButton(box *gtk.Box, p *player.PlayerChan) (err error) {
var btn *gtk.Button
if btn, err = gtk.ButtonNewFromIconName("media-playback-start", gtk.ICON_SIZE_DIALOG); err != nil {
return
}
btn.Connect("clicked", func(_ *gtk.Button) {
if err := p.Play(); err != nil {
rhdl.Println(err) // TODO: feedback at GUI?
}
})
box.PackStart(btn, false, false, 0)
return
}
func addPauseButton(box *gtk.Box, p *player.PlayerChan) (err error) {
var btn *gtk.Button
if btn, err = gtk.ButtonNewFromIconName("media-playback-pause", gtk.ICON_SIZE_DIALOG); err != nil {
return
}
btn.Connect("clicked", func(_ *gtk.Button) {
if err := p.Pause(); err != nil {
rhdl.Println(err) // TODO: feedback at GUI?
}
})
box.PackStart(btn, false, false, 0)
return
}
func addStopButton(box *gtk.Box, p *player.PlayerChan) (err error) {
var btn *gtk.Button
if btn, err = gtk.ButtonNewFromIconName("media-playback-stop", gtk.ICON_SIZE_DIALOG); err != nil {
return
}
btn.Connect("clicked", func(_ *gtk.Button) {
if err := p.Stop(); err != nil {
rhdl.Println(err) // TODO: feedback at GUI?
}
})
box.PackStart(btn, false, false, 0)
return
}
func addButtons(grid *gtk.Grid, p *player.PlayerChan) (err error) {
var box *gtk.Box
if box, err = gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, 3); err != nil {
return
}
if err = addPlayButton(box, p); err != nil {
return
}
if err = addPauseButton(box, p); err != nil {
return
}
if err = addStopButton(box, p); err != nil {
return
}
grid.Attach(box, 1, 1, 1, 2)
return
}
func addMeter(grid *gtk.Grid, p *player.PlayerChan) error {
widget, err := getVUMeterWidget(p)
if err != nil {
return err
}
grid.Attach(widget, 2, 1, 1, 1)
return nil
}
func addScrubber(grid *gtk.Grid, p *player.PlayerChan) (err error) {
var scale *gtk.Scale
if scale, err = gtk.ScaleNew(gtk.ORIENTATION_HORIZONTAL, nil); err != nil {
return
}
if err = scale.SetProperty("draw-value", false); err != nil {
return
}
scale.SetRange(0, 1)
scale.SetValue(0)
p.AddUpdateHandler(func(length time.Duration, pos time.Duration, meter player.Meter, userdata interface{}) bool {
glib.IdleAdd(func() { scale.SetValue(float64(pos) / float64(length)) })
return true
}, nil)
grid.Attach(scale, 2, 2, 2, 1)
return
}
func addPlayTime(grid *gtk.Grid, p *player.PlayerChan) (err error) {
var label *gtk.Label
if label, err = gtk.LabelNew("00:00:00.0"); err != nil {
return err
}
p.AddUpdateHandler(func(length time.Duration, pos time.Duration, meter player.Meter, userdata interface{}) bool {
glib.IdleAdd(func() {
t := time.Unix(0, 0).UTC().Add(pos)
label.SetText(t.Format("15:04:05.0"))
})
return true
}, nil)
var cp *gtk.CssProvider
if cp, err = gtk.CssProviderNew(); err != nil {
return
}
if err = cp.LoadFromData(".label { font-weight: bold; font-size: 15pt; padding: 3px 12px 3px 2px; }"); err != nil {
return
}
var sc *gtk.StyleContext
if sc, err = label.GetStyleContext(); err != nil {
return
}
sc.AddProvider(cp, 600) // TOOD: hardcoded value
grid.Attach(label, 3, 1, 1, 1)
return
}
func getPlayerWidget(p *player.PlayerChan) (gtk.IWidget, error) {
var err error
var grid *gtk.Grid
if grid, err = gtk.GridNew(); err != nil {
return nil, err
}
grid.SetOrientation(gtk.ORIENTATION_HORIZONTAL)
grid.SetColumnSpacing(13)
if err = addButtons(grid, p); err != nil {
return nil, err
}
if err = addMeter(grid, p); err != nil {
return nil, err
}
if err = addScrubber(grid, p); err != nil {
return nil, err
}
if err = addPlayTime(grid, p); err != nil {
return nil, err
}
grid.SetHAlign(gtk.ALIGN_CENTER)
return grid, nil
}
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