130 lines
3.0 KiB
Go
130 lines
3.0 KiB
Go
package tchart
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import (
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"image"
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"sync"
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"github.com/derailed/tcell/v2"
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"github.com/derailed/tview"
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)
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// Component represents a graphic component.
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type Component struct {
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*tview.Box
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bgColor, noColor tcell.Color
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focusFgColor, focusBgColor string
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seriesColors []tcell.Color
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dimmed tcell.Style
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id, legend string
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blur func(tcell.Key)
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mx sync.RWMutex
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}
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// NewComponent returns a new component.
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func NewComponent(id string) *Component {
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return &Component{
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Box: tview.NewBox(),
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id: id,
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noColor: tcell.ColorDefault,
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seriesColors: []tcell.Color{
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tcell.ColorGreen,
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tcell.ColorOrange,
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tcell.ColorOrangeRed,
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},
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dimmed: tcell.StyleDefault.Background(tview.Styles.PrimitiveBackgroundColor).Foreground(tcell.ColorGray).Dim(true),
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}
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}
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// SetFocusColorNames sets the focus color names.
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func (c *Component) SetFocusColorNames(fg, bg string) {
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c.focusFgColor, c.focusBgColor = fg, bg
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}
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// SetBackgroundColor sets the graph bg color.
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func (c *Component) SetBackgroundColor(color tcell.Color) {
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c.mx.Lock()
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defer c.mx.Unlock()
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c.Box.SetBackgroundColor(color)
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c.bgColor = color
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c.dimmed = c.dimmed.Background(color)
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}
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// ID returns the component ID.
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func (c *Component) ID() string {
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return c.id
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}
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// SetLegend sets the component legend.
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func (c *Component) SetLegend(l string) {
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c.mx.Lock()
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defer c.mx.Unlock()
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c.legend = l
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}
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// InputHandler returns the handler for this primitive.
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func (c *Component) InputHandler() func(event *tcell.EventKey, setFocus func(p tview.Primitive)) {
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return c.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p tview.Primitive)) {
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switch key := event.Key(); key {
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case tcell.KeyEnter:
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case tcell.KeyBacktab, tcell.KeyTab:
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if c.blur != nil {
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c.blur(key)
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}
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setFocus(c)
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}
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})
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}
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// IsDial returns true if chart is a dial
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func (*Component) IsDial() bool {
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return false
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}
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// SetBlurFunc sets a callback fn when component gets out of focus.
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func (c *Component) SetBlurFunc(handler func(key tcell.Key)) *Component {
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c.blur = handler
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return c
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}
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// SetSeriesColors sets the component series colors.
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func (c *Component) SetSeriesColors(cc ...tcell.Color) {
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c.mx.Lock()
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defer c.mx.Unlock()
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c.seriesColors = cc
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}
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// GetSeriesColorNames returns series colors by name.
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func (c *Component) GetSeriesColorNames() []string {
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c.mx.RLock()
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defer c.mx.RUnlock()
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if len(c.seriesColors) < 3 {
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return []string{"green", "orange", "red"}
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}
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nn := make([]string, 0, len(c.seriesColors))
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for _, color := range c.seriesColors {
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for name, co := range tcell.ColorNames {
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if co == color {
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nn = append(nn, name)
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}
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}
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}
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return nn
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}
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func (c *Component) colorForSeries() []tcell.Color {
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c.mx.RLock()
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defer c.mx.RUnlock()
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return c.seriesColors
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}
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func (c *Component) asRect() image.Rectangle {
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x, y, width, height := c.GetInnerRect()
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return image.Rectangle{
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Min: image.Point{X: x, Y: y},
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Max: image.Point{X: x + width, Y: y + height},
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}
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}
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