// findIconEwmh helps FindIcon by trying to return an ewmh-style icon that is
// closest to the preferred size specified.
func findIconEwmh(X *xgbutil.XUtil, wid xproto.Window,
width, height int) (*Image, error) {
icons, err := ewmh.WmIconGet(X, wid)
if err != nil {
return nil, err
}
icon := FindBestEwmhIcon(width, height, icons)
if icon == nil {
return nil, fmt.Errorf("Could not find any _NET_WM_ICON icon.")
}
return NewEwmhIcon(X, icon), nil
}
func main() {
defer Recovery()
X, Xerr = xgbutil.Dial("")
if Xerr != nil {
panic(Xerr)
}
active, _ := ewmh.ActiveWindowGet(X)
icons, _ := ewmh.WmIconGet(X, active)
var width, height int = 300, 300
work := xgraphics.FindBestIcon(width, height, icons)
if work != nil {
fmt.Printf("Working with icon (%d, %d)\n", work.Width, work.Height)
} else {
fmt.Println("No good icon... :-(")
return
}
eimg, emask := xgraphics.EwmhIconToImage(work)
img := xgraphics.Scale(eimg, int(width), int(height))
mask := xgraphics.Scale(emask, int(width), int(height))
dest := xgraphics.BlendBg(img, mask, 100, color.RGBA{0, 0, 255, 255})
// Let's try to write some text...
// xgraphics.DrawText(dest, 50, 50, color.RGBA{255, 255, 255, 255}, 20,
// fontFile, "Hello, world!")
// tw, th, err := xgraphics.TextExtents(fontFile, 11, "Hiya")
// fmt.Println(tw, th, err)
win := xgraphics.CreateImageWindow(X, dest, 3940, 0)
X.Conn().MapWindow(win)
// time.Sleep(20 * time.Second)
select {}
}
func main() {
X, Xerr = xgbutil.NewConn()
if Xerr != nil {
panic(Xerr)
}
active, _ := ewmh.ActiveWindowGet(X)
parent, _ := xwindow.ParentWindow(X, active)
actOpacity, _ := ewmh.WmWindowOpacityGet(X, parent)
fmt.Printf("Opacity for active window: %f\n", actOpacity)
showDesk, _ := ewmh.ShowingDesktopGet(X)
fmt.Printf("Showing desktop? %v\n", showDesk)
wmName, err := ewmh.GetEwmhWM(X)
if err != nil {
fmt.Printf("No conforming window manager found... :-(\n")
fmt.Println(err)
} else {
fmt.Printf("Window manager: %s\n", wmName)
}
pager := xproto.Window(0x160001e)
middle := xproto.Window(0x3200016)
geom, _ := ewmh.DesktopGeometryGet(X)
desktops, _ := ewmh.DesktopNamesGet(X)
curdesk, _ := ewmh.CurrentDesktopGet(X)
clients, _ := ewmh.ClientListGet(X)
activeName, _ := ewmh.WmNameGet(X, active)
fmt.Printf("Active window: %x\n", active)
fmt.Printf("Current desktop: %d\n", curdesk)
fmt.Printf("Client list: %v\n", clients)
fmt.Printf("Desktop geometry: (width: %d, height: %d)\n",
geom.Width, geom.Height)
fmt.Printf("Active window name: %s\n", activeName)
fmt.Printf("Desktop names: %s\n", desktops)
var desk string
if curdesk < len(desktops) {
desk = desktops[curdesk]
} else {
desk = string(curdesk)
}
fmt.Printf("Current desktop: %s\n", desk)
// fmt.Printf("\nChanging current desktop to 25 from %d\n", curdesk)
ewmh.CurrentDesktopSet(X, curdesk)
// fmt.Printf("Current desktop is now: %d\n", ewmh.CurrentDesktop(X))
fmt.Printf("Setting active win to %x\n", middle)
// ewmh.ActiveWindowReq(X, middle)
rand.Seed(int64(time.Now().Nanosecond()))
randStr := make([]byte, 20)
for i, _ := range randStr {
if rf := rand.Float32(); rf < 0.40 {
randStr[i] = byte('a' + rand.Intn('z'-'a'))
} else if rf < 0.80 {
randStr[i] = byte('A' + rand.Intn('Z'-'A'))
} else {
randStr[i] = ' '
}
}
ewmh.WmNameSet(X, active, string(randStr))
newName, _ := ewmh.WmNameGet(X, active)
fmt.Printf("New name: %s\n", newName)
// deskNames := ewmh.DesktopNamesGet(X)
// fmt.Printf("Desktop names: %s\n", deskNames)
// deskNames[len(deskNames) - 1] = "xgbutil"
// ewmh.DesktopNamesSet(X, deskNames)
// fmt.Printf("Desktop names: %s\n", ewmh.DesktopNamesGet(X))
supported, _ := ewmh.SupportedGet(X)
fmt.Printf("Supported hints: %v\n", supported)
fmt.Printf("Setting supported hints...\n")
ewmh.SupportedSet(X, []string{"_NET_CLIENT_LIST", "_NET_WM_NAME",
"_NET_WM_DESKTOP"})
numDesks, _ := ewmh.NumberOfDesktopsGet(X)
fmt.Printf("Number of desktops: %d\n", numDesks)
// ewmh.NumberOfDesktopsReq(X.EwmhNumberOfDesktops(X) + 1)
// time.Sleep(time.Second)
// fmt.Printf("Number of desktops: %d\n", ewmh.NumberOfDesktops(X))
viewports, _ := ewmh.DesktopViewportGet(X)
fmt.Printf("Viewports (%d): %v\n", len(viewports), viewports)
// viewports[2].X = 50
// viewports[2].Y = 293
// ewmh.DesktopViewportSet(X, viewports)
// time.Sleep(time.Second)
//
// viewports = ewmh.DesktopViewport(X)
// fmt.Printf("Viewports (%d): %v\n", len(viewports), viewports)
// ewmh.CurrentDesktopReq(X, 3)
visDesks, _ := ewmh.VisibleDesktopsGet(X)
workarea, _ := ewmh.WorkareaGet(X)
fmt.Printf("Visible desktops: %v\n", visDesks)
fmt.Printf("Workareas: %v\n", workarea)
// fmt.Printf("Virtual roots: %v\n", ewmh.VirtualRoots(X))
// fmt.Printf("Desktop layout: %v\n", ewmh.DesktopLayout(X))
fmt.Printf("Closing window %x\n", 0x2e004c5)
ewmh.CloseWindow(X, 0x1e00cdf)
fmt.Printf("Moving/resizing window: %x\n", 0x2e004d0)
ewmh.MoveresizeWindow(X, 0x2e004d0, 1920, 30, 500, 500)
// fmt.Printf("Trying to initiate a moveresize...\n")
// ewmh.WmMoveresize(X, 0x2e004db, xgbutil.EwmhMove)
// time.Sleep(5 * time.Second)
// ewmh.WmMoveresize(X, 0x2e004db, xgbutil.EwmhCancel)
// fmt.Printf("Stacking window %x...\n", 0x2e00509)
// ewmh.RestackWindow(X, 0x2e00509)
fmt.Printf("Requesting frame extents for active window...\n")
ewmh.RequestFrameExtents(X, active)
activeDesk, _ := ewmh.WmDesktopGet(X, active)
activeType, _ := ewmh.WmWindowTypeGet(X, active)
fmt.Printf("Active window's desktop: %d\n", activeDesk)
fmt.Printf("Active's types: %v\n", activeType)
// fmt.Printf("Pager's types: %v\n", ewmh.WmWindowType(X, 0x180001e))
// fmt.Printf("Pager's state: %v\n", ewmh.WmState(X, 0x180001e))
// ewmh.WmStateReq(X, active, xgbutil.EwmhStateToggle,
// "_NET_WM_STATE_HIDDEN")
// ewmh.WmStateReqExtra(X, active, xgbutil.EwmhStateToggle,
// "_NET_WM_STATE_MAXIMIZED_VERT",
// "_NET_WM_STATE_MAXIMIZED_HORZ", 2)
activeAllowed, _ := ewmh.WmAllowedActionsGet(X, active)
fmt.Printf("Allowed actions on active: %v\n", activeAllowed)
struts, err := ewmh.WmStrutGet(X, pager)
if err != nil {
fmt.Printf("Pager struts: %v\n", err)
} else {
fmt.Printf("Pager struts: %v\n", struts)
}
pstruts, err := ewmh.WmStrutPartialGet(X, pager)
if err != nil {
fmt.Printf("Pager struts partial: %v - %v\n", pstruts, err)
} else {
fmt.Printf("Pager struts partial: %v\n", pstruts.BottomStartX)
}
// fmt.Printf("Icon geometry for active: %v\n",
// ewmh.WmIconGeometry(X, active))
icons, _ := ewmh.WmIconGet(X, active)
fmt.Printf("Active window's (%x) icon data: (length: %v)\n",
active, len(icons))
for _, icon := range icons {
fmt.Printf("\t(%d, %d)", icon.Width, icon.Height)
fmt.Printf(" :: %d == %d\n", icon.Width*icon.Height, len(icon.Data))
}
// fmt.Printf("Now set them again...\n")
// ewmh.WmIconSet(X, active, icons[:len(icons) - 1])
}
func main() {
defer Recovery()
X, Xerr = xgbutil.Dial("")
if Xerr != nil {
panic(Xerr)
}
active, _ := ewmh.ActiveWindowGet(X)
icons, _ := ewmh.WmIconGet(X, active)
fmt.Printf("Active window's (%x) icon data: (length: %v)\n",
active, len(icons))
for _, icon := range icons {
fmt.Printf("\t(%d, %d)", icon.Width, icon.Height)
fmt.Printf(" :: %d == %d\n", icon.Width*icon.Height, len(icon.Data))
}
work := icons[2]
fmt.Printf("Working with (%d, %d)\n", work.Width, work.Height)
width, height := int(work.Width), int(work.Height)
mask := image.NewRGBA(image.Rect(0, 0, width, height))
img := image.NewRGBA(image.Rect(0, 0, width, height))
for x := 0; x < width; x++ {
for y := 0; y < height; y++ {
argb := work.Data[x+(y*height)]
alpha := argb >> 24
red := ((alpha << 24) ^ argb) >> 16
green := (((alpha << 24) + (red << 16)) ^ argb) >> 8
blue := (((alpha << 24) + (red << 16) + (green << 8)) ^ argb) >> 0
c := color.RGBA{
R: uint8(red),
G: uint8(green),
B: uint8(blue),
A: uint8(alpha),
}
img.SetRGBA(x, y, c)
mask.Set(x, y, color.Alpha{uint8(alpha)})
}
}
// blendMask := image.NewUniform(color.Alpha{127})
// draw.DrawMask(mask, mask.Bounds(), mask, image.ZP, blendMask,
// image.ZP, draw.Src)
dest := image.NewRGBA(image.Rect(0, 0, width, height))
allBlue := image.NewUniform(color.RGBA{127, 127, 127, 255})
draw.Draw(dest, dest.Bounds(), allBlue, image.ZP, draw.Src)
draw.DrawMask(dest, dest.Bounds(), img, image.ZP, mask, image.ZP, draw.Over)
// Let's try to write some text...
WriteText(dest)
destWriter, err := os.Create("someicon.png")
if err != nil {
fmt.Print("could not create someicon.png")
os.Exit(1)
}
png.Encode(destWriter, dest)
// Let's see if we can paint the image we generated above to a window.
win := X.Conn().NewId()
gc := X.Conn().NewId()
scrn := X.Conn().DefaultScreen()
cursor := xcursor.CreateCursor(X, xcursor.Fleur)
winMask := uint32(xgb.CWBackPixmap | xgb.CWOverrideRedirect |
xgb.CWBackPixel | xgb.CWCursor)
winVals := []uint32{xgb.BackPixmapParentRelative, scrn.BlackPixel,
1, uint32(cursor)}
X.Conn().CreateWindow(scrn.RootDepth, win, X.RootWin(), 100, 400,
uint16(width), uint16(height),
0, xgb.WindowClassInputOutput, scrn.RootVisual,
winMask, winVals)
X.Conn().CreateGC(gc, X.RootWin(), xgb.GCForeground,
[]uint32{scrn.WhitePixel})
X.Conn().MapWindow(win)
// try paitning the image we created above...
// First we have to transform the image into X format. (BGRA)
// Then we have to allocate resources for the pixmap.
// Then we can paint the pixmap.
// Finally, we attach that pixmap as the "BackPixmap" of our window above.
// (And free pixmap right thereafter, of course.)
imgData := make([]byte, width*height*4)
for x := 0; x < width; x++ {
for y := 0; y < height; y++ {
r, g, b, a := dest.At(x, y).RGBA()
i := 4 * (x + (y * height))
imgData[i+0] = byte(b)
imgData[i+1] = byte(g)
imgData[i+2] = byte(r)
imgData[i+3] = byte(a)
}
}
pix := X.Conn().NewId()
X.Conn().CreatePixmap(scrn.RootDepth, pix, X.RootWin(),
uint16(width), uint16(height))
X.Conn().PutImage(xgb.ImageFormatZPixmap, pix, gc,
uint16(width), uint16(height), 0, 0, 0, 24, imgData)
X.Conn().ChangeWindowAttributes(win, uint32(xgb.CWBackPixmap),
[]uint32{uint32(pix)})
X.Conn().ClearArea(false, win, 0, 0, 0, 0)
X.Conn().FreePixmap(pix)
time.Sleep(20 * time.Second)
}