add plugin to show colors

This commit is contained in:
Aaron Bieber 2020-03-09 20:47:43 -06:00
parent e09d5853ac
commit 945b6afd85
2 changed files with 74 additions and 0 deletions

73
plugins/palette.go Normal file
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@ -0,0 +1,73 @@
package plugins
import (
"fmt"
"image"
"image/color"
"regexp"
"github.com/matrix-org/gomatrix"
)
// Palette responds to color messages
type Palette struct {
}
// Descr describes this plugin
func (h *Palette) Descr() string {
return "Creates an solid 256x56 image of the color specified."
}
// Re is the regex for matching color messages.
func (h *Palette) Re() string {
return `(?i)^#[a-f0-9]{6}$`
}
// Match determines if we are asking for a color
func (h *Palette) Match(user, msg string) bool {
re := regexp.MustCompile(h.Re())
return re.MatchString(msg)
}
// SetStore we don't need a store here
func (h *Palette) SetStore(s PluginStore) {}
func (h *Palette) parseHexColor(s string) (*color.RGBA, error) {
c := &color.RGBA{
A: 0xff,
}
_, err := fmt.Sscanf(s, "#%02x%02x%02x", &c.R, &c.G, &c.B)
if err != nil {
return nil, err
}
return c, nil
}
// RespondText to color request events
func (h *Palette) RespondText(c *gomatrix.Client, ev *gomatrix.Event, user, post string) {
const width, height = 256, 56
img := image.NewRGBA(image.Rect(0, 0, 256, 56))
color, err := h.parseHexColor(post)
if err != nil {
fmt.Println(err)
SendText(c, ev.RoomID, fmt.Sprintf("%s", err))
}
for y := 0; y < height; y++ {
for x := 0; x < width; x++ {
img.Set(x, y, color)
}
}
err = SendImage(c, ev.RoomID, img)
if err != nil {
fmt.Println(err)
}
}
// Name color
func (h *Palette) Name() string {
return "Palette"
}

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@ -188,6 +188,7 @@ var Plugs = Plugins{
&Hi{}, &Hi{},
&LoveYou{}, &LoveYou{},
&OpenBSDMan{}, &OpenBSDMan{},
&Palette{},
&Snap{}, &Snap{},
&Source{}, &Source{},
&Thanks{}, &Thanks{},