From 6117c8a98a39cd8bc1ca6b2436b6dab8873053f9 Mon Sep 17 00:00:00 2001
From: hhvn <dev@hhvn.uk>
Date: Sat, 18 Nov 2023 14:13:25 +0000
Subject: Draw to an image.RGBA

---
 drw/x.go | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 drw/x.go

(limited to 'drw/x.go')

diff --git a/drw/x.go b/drw/x.go
new file mode 100644
index 0000000..70b29da
--- /dev/null
+++ b/drw/x.go
@@ -0,0 +1,68 @@
+package drw // import "hhvn.uk/hbspbar/drw"
+
+import (
+	"os"
+	"image/color"
+
+	"hhvn.uk/hbspbar/config"
+	"hhvn.uk/hbspbar/common"
+
+	"github.com/jezek/xgb"
+	"github.com/jezek/xgb/xproto"
+	"github.com/jezek/xgbutil"
+	"github.com/jezek/xgbutil/xgraphics"
+	"github.com/BurntSushi/freetype-go/freetype"
+	"github.com/BurntSushi/freetype-go/freetype/truetype"
+)
+
+var InitErr error
+var X       *xgb.Conn
+var XU      *xgbutil.XUtil
+var Screen  *xproto.ScreenInfo
+
+var font    *truetype.Font
+var ft      *freetype.Context
+
+func init() {
+	var err error
+
+	X, err = xgb.NewConn()
+	if err != nil {
+		InitErr = err
+		return
+	}
+
+	XU, err = xgbutil.NewConnXgb(X)
+	if err != nil {
+		InitErr = err
+		return
+	}
+
+	setup := xproto.Setup(X)
+	Screen = setup.DefaultScreen(X)
+
+	read, err := os.Open(config.Font)
+	if err != nil {
+		InitErr = common.Perror("os.Open", err)
+		return
+	}
+
+	font, err = xgraphics.ParseFont(read)
+	if err != nil {
+		InitErr = common.Perror("xgraphics.ParseFont", err)
+		return
+	}
+
+	ft = freetype.NewContext()
+	ft.SetDPI(72)
+	ft.SetFont(font)
+	ft.SetFontSize(config.FontSize)
+}
+
+func int2rgb(argb uint32) (color.RGBA) {
+	return color.RGBA{
+		B: uint8( argb & 0x000000ff),
+		G: uint8((argb & 0x0000ff00) >> 8),
+		R: uint8((argb & 0x00ff0000) >> 16),
+		A: uint8((argb & 0xff000000) >> 24) }
+}
-- 
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