// setColorTemp changes the Xrandr colors to reflect the specified color temperature.
func setColorTemp(gammar, gammag, gammab float64) {
dpy := C.XOpenDisplay(nil)
screenCount := C.screenCount(dpy)
for screen := C.int(0); screen < screenCount; screen++ {
root := C.RootWindowMacro(dpy, screen)
res := C.XRRGetScreenResourcesCurrent(dpy, root)
for c := C.int(0); c < res.ncrtc; c++ {
crtcxid := C.crtcxid(res.crtcs, c)
size := C.XRRGetCrtcGammaSize(dpy, crtcxid)
crtc_gamma := C.XRRAllocGamma(size)
for i := C.int(0); i < size; i++ {
g := 65535.0 * float64(i) / float64(size)
C.ushortSet(C.ushortCast(unsafe.Pointer(crtc_gamma.red)), i, C.double(g*gammar))
C.ushortSet(C.ushortCast(unsafe.Pointer(crtc_gamma.green)), i, C.double(g*gammag))
C.ushortSet(C.ushortCast(unsafe.Pointer(crtc_gamma.blue)), i, C.double(g*gammab))
}
C.XRRSetCrtcGamma(dpy, crtcxid, crtc_gamma)
C.XFree(unsafe.Pointer(crtc_gamma))
}
C.XFree(unsafe.Pointer(res))
}
C.XCloseDisplay(dpy)
}
// Переключалка групп Xorg.
func switchXkbGroup(group uint) {
var xkbEventType, xkbError, xkbReason C.int
var majorVers, minorVers C.int
majorVers = C.XkbMajorVersion
minorVers = C.XkbMinorVersion
display := C.XkbOpenDisplay(nil, &xkbEventType, &xkbError, &majorVers, &minorVers, &xkbReason)
if display == nil {
fmt.Printf("Can't open X display %s", C.GoString(C.XDisplayName(nil)))
switch xkbReason {
case C.XkbOD_BadServerVersion:
case C.XkbOD_BadLibraryVersion:
println("incompatible versions of client and server XKB libraries")
case C.XkbOD_ConnectionRefused:
println("connection to X server refused")
case C.XkbOD_NonXkbServer:
println("XKB extension is not present")
default:
println("unknown error from XkbOpenDisplay: %d", xkbReason)
}
return
}
C.XkbLockGroup(display, C.XkbUseCoreKbd, C.uint(group))
C.XCloseDisplay(display)
}
func handleEvents() bool {
C.XNextEvent(dpy, eventPtr)
fmt.Println(event.message_type)
if event._type == C.ClientMessage {
C.XCloseDisplay(dpy)
return false
}
return true
}
func terminate() {
//
// C.XFreeGC (display, graphicsContext)
// C.XUnmapWindow (display, window)
C.XDestroyWindow(display, window)
C.XDestroyWindow(display, C.Window(window0))
C.XCloseDisplay(display)
initialized = false
}
// XIdle returns the xserver idle time in miliseconds.
func XIdle() (uint, error) {
var eventBase, errorBase C.int
var info C.XScreenSaverInfo
display := C.XOpenDisplay(C.CString(""))
if display == nil {
return 0, fmt.Errorf("xidle: unable to open X display")
}
defer C.XCloseDisplay(display)
if C.XScreenSaverQueryExtension(display, &eventBase, &errorBase) > 0 {
C.XScreenSaverQueryInfo(display, C.wrap_DefaultRootWindow(display), &info)
return uint(info.idle), nil
}
return 0, fmt.Errorf("XScreenSaver Extension not present")
}
// Close X display
func (x *X) CloseDisplay() {
if x.dpy != nil {
C.XCloseDisplay(x.dpy)
}
}
func main() {
window, err := CreateXWindow(500, 500)
if err != nil {
panic(err)
}
defer C.XCloseDisplay(window.Display)
DB, err := initDB()
if err != nil {
panic(err)
}
//getTwitterData(DB)
tweetsList, err := regenerateViewData(window, DB, 20)
if err != nil {
panic(err)
}
wmDeleteMessage := C.XInternAtom(window.Display, C.CString("WM_DELETE_WINDOW"), 0)
C.XSetWMProtocols(window.Display, window.Window, &wmDeleteMessage, 1)
mouseClick := [2]int{-1, -1}
var event C.XEvent
for {
pendingRedraws := false
processedOneEvent := false
for !processedOneEvent || C.XPending(window.Display) != 0 {
C.XNextEvent(window.Display, &event)
processedOneEvent = true
switch C.getXEventType(event) {
case C.Expose:
pendingRedraws = true
case C.KeyPress:
ke := C.eventAsKeyEvent(event)
//fmt.Println("Key pressed", ke.keycode)
switch ke.keycode {
case 116: // down
window.Scroll -= 10
case 111: // up
window.Scroll += 10
}
pendingRedraws = true
case C.ButtonPress:
b := C.eventAsButtonEvent(event)
switch b.button {
case 4: // scroll up
window.Scroll += 10
case 5: // scroll down
window.Scroll -= 10
case 1:
// left mouse down
butEv := (*C.XButtonEvent)(unsafe.Pointer(&event))
mouseClick[0] = int(butEv.x)
mouseClick[1] = int(butEv.y)
}
pendingRedraws = true
case C.ClientMessage:
if C.clientMessageType(event) == C.long(wmDeleteMessage) {
return
}
}
}
if pendingRedraws {
RedrawWindow(window, tweetsList, mouseClick)
mouseClick[0] = -1
mouseClick[1] = -1
}
}
}