examples. some should be tests

nexgb/examples/randr.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/BurntSushi/xgb"
+)
+
+func main() {
+	X, _ := xgb.NewConn()
+
+	err := X.RegisterExtension("randr")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	resources, err := X.RandrGetScreenResources(X.DefaultScreen().Root).Reply()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	for _, output := range resources.Outputs {
+		info, err := X.RandrGetOutputInfo(output, 0).Reply()
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		bestMode := info.Modes[0]
+		for _, mode := range resources.Modes {
+			if mode.Id == uint32(bestMode) {
+				fmt.Printf("Width: %d, Height: %d\n", mode.Width, mode.Height)
+			}
+		}
+	}
+
+	fmt.Println("\n")
+
+	for _, crtc := range resources.Crtcs {
+		info, err := X.RandrGetCrtcInfo(crtc, 0).Reply()
+		if err != nil {
+			log.Fatal(err)
+		}
+		fmt.Printf("X: %d, Y: %d, Width: %d, Height: %d\n",
+			info.X, info.Y, info.Width, info.Height)
+	}
+}
+

nexgb/examples/seq-nowrap.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/BurntSushi/xgb"
+)
+
+func main() {
+	X, _ := xgb.NewConn()
+
+	for i := 1; i <= 1<<16 + 10; i++ {
+		X.NoOperation()
+		// fmt.Printf("%d. No-Op\n", i) 
+	}
+
+	aname := "_NET_ACTIVE_WINDOW"
+
+	for i := 1; i <= 10; i++ {
+		atom, err := X.InternAtom(true, uint16(len(aname)), aname).Reply()
+		if err != nil {
+			fmt.Println(err)
+		} else {
+			fmt.Printf("%d. Sequence: %d, Atom: %d\n",
+				i, atom.Sequence, atom.Atom)
+		}
+	}
+}
+

nexgb/examples/seq-wrap.go

@@ -0,0 +1,24 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/BurntSushi/xgb"
+)
+
+func main() {
+	X, _ := xgb.NewConn()
+
+	aname := "_NET_ACTIVE_WINDOW"
+
+	for i := 1; i <= 1<<16 + 10; i++ {
+		atom, err := X.InternAtom(true, uint16(len(aname)), aname).Reply()
+		if err != nil {
+			fmt.Println(err)
+		} else {
+			fmt.Printf("%d. Sequence: %d, Atom: %d\n",
+				i, atom.Sequence, atom.Atom)
+		}
+	}
+}
+

nexgb/examples/window.go

@@ -0,0 +1,61 @@
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/BurntSushi/xgb"
+)
+
+func main() {
+	X, err := xgb.NewConn()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	wid, _ := X.NewId()
+	X.CreateWindow(X.DefaultScreen().RootDepth, wid, X.DefaultScreen().Root,
+		0, 0, 500, 500, 0,
+		xgb.WindowClassInputOutput, X.DefaultScreen().RootVisual,
+		0, []uint32{})
+	X.ChangeWindowAttributes(wid, xgb.CwEventMask | xgb.CwBackPixel,
+		[]uint32{0xffffffff, xgb.EventMaskKeyPress | xgb.EventMaskKeyRelease})
+
+	err = X.MapWindowChecked(wid).Check()
+	if err != nil {
+		fmt.Printf("Checked Error for mapping window %d: %s\n", wid, err)
+	} else {
+		fmt.Printf("Map window %d successful!\n", wid)
+	}
+
+	err = X.MapWindowChecked(0x1).Check()
+	if err != nil {
+		fmt.Printf("Checked Error for mapping window 0x1: %s\n", err)
+	} else {
+		fmt.Printf("Map window 0x1 successful!\n")
+	}
+
+	for {
+		ev, xerr := X.WaitForEvent()
+		if ev == nil && xerr == nil {
+			log.Fatal("Both event and error are nil. Exiting...")
+		}
+
+		if ev != nil {
+			fmt.Printf("Event: %s\n", ev)
+		}
+		if xerr != nil {
+			fmt.Printf("Error: %s\n", xerr)
+		}
+
+		if xerr == nil {
+			geom, err := X.GetGeometry(0x1).Reply()
+			if err != nil {
+				fmt.Printf("Geom Error: %#v\n", err)
+			} else {
+				fmt.Printf("Geometry: %#v\n", geom)
+			}
+		}
+	}
+}
+

nexgb/examples/xinerama.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/BurntSushi/xgb"
+)
+
+func main() {
+	X, _ := xgb.NewConn()
+
+	err := X.RegisterExtension("xinerama")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	reply, err := X.XineramaQueryScreens().Reply()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Printf("Xinerama number: %d\n", reply.Number)
+	for i, screen := range reply.ScreenInfo {
+		fmt.Printf("%d :: X: %d, Y: %d, Width: %d, Height: %d\n",
+			i, screen.XOrg, screen.YOrg, screen.Width, screen.Height)
+	}
+}
+