func New() *Window {
xWnd := C.XCreateWindow(
dpy,
root,
0,
0,
500,
500,
0,
C.XDefaultDepth(dpy, 0),
C.InputOutput,
C.XDefaultVisual(dpy, 0),
C.CWBackPixel,
&attributes,
)
wdw := C.CString("WM_DELETE_WINDOW")
wmDelete := C.XInternAtom(dpy, wdw, 1)
C.free(unsafe.Pointer(wdw))
fmt.Println(wmDelete)
C.XSetWMProtocols(dpy, xWnd, &wmDelete, 1)
C.XSelectInput(dpy, xWnd, C.ExposureMask|C.KeyPressMask)
C.XMapWindow(dpy, xWnd)
wnd := &Window{
id: uintptr(xWnd),
}
wndMap[wnd.id] = wnd
return wnd
}
func Init(w, h uint, cF, cB col.Colour) (uint, uint, uint) {
//
initialized = false
//
maxX, maxY, bitdepth = Screen()
bdp := uint(bitdepth)
switch bdp {
case 15, 16, 24, 32:
col.SetColourDepth(bdp)
default:
panic("strange colourdepth") /* Terminate (); */ os.Exit(1)
}
colourdepth := (bdp + 1) / 8
col.ScreenF, col.ScreenB = cF, cB
xx, yy = C.uint(w), C.uint(h)
window = C.XCreateSimpleWindow(display, C.Window(window0), 0, 0, xx, yy, C.uint(0), C.ulong(0), cc(col.ScreenB))
// var E C.XEvent
// C.XNextEvent (display, &E) // XCreate... did not produce an XEvent
C.initialize(display, screen, window)
t := C.CString(env.Par(0))
defer C.free(unsafe.Pointer(t))
C.XStoreName(display, window, t)
C.XMapRaised(display, window)
const inputmask = (C.KeyPressMask + // C.KeyReleaseMask +
C.ButtonPressMask + C.ButtonReleaseMask + C.PointerMotionMask +
C.ExposureMask + C.StructureNotifyMask)
C.XSelectInput(display, window, inputmask)
cursor := C.XCreateFontCursor(display, C.XC_gumby)
C.XDefineCursor(display, window, cursor)
graphicsContext = C.XDefaultGC(display, screen)
// C.XFlushGC (display graphicsContext)
C.XSetGraphicsExposures(display, graphicsContext, C.False)
SetFontsize(16)
initialized = true
Colours(cF, cB)
C.XSetForeground(display, graphicsContext, cc(col.ScreenB))
C.XFillRectangle(display, C.Drawable(window), graphicsContext, 0, 0, xx, yy)
pixmap = C.XCreatePixmap(display, C.Drawable(window), xx, yy, bitdepth)
pixmap1 = C.XCreatePixmap(display, C.Drawable(window), maxX, maxY, bitdepth)
C.XFillRectangle(display, C.Drawable(pixmap), graphicsContext, 0, 0, xx, yy)
C.XFillRectangle(display, C.Drawable(pixmap1), graphicsContext, 0, 0, xx, yy)
C.XSetForeground(display, graphicsContext, cc(col.ScreenF))
MouseDef(0, 0, int(xx-1), int(yy-1))
var E C.XEvent
C.XNextEvent(display, &E)
var et C.int = C.typ(&E) // et == *E.type
switch et {
case C.Expose, C.ConfigureNotify: // zur Erstausgabe
for C.XCheckTypedEvent(display, et, &E) == C.True {
}
// pp2ff ()
case KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify:
C.XPutBackEvent(display, &E)
case C.ReparentNotify: // at Switch (?)
// ignore
default: // for test purposes
// println ("at initializing x:" + txt [et])
}
p := C.CString("WM_PROTOCOLS")
defer C.free(unsafe.Pointer(p))
wm_protocols := C.XInternAtom(display, p, C.False)
C.XSetWMProtocols(display, window, &wm_protocols, 1)
s := C.CString("_NET_WM_STATE")
defer C.free(unsafe.Pointer(s))
netwm_state = C.XInternAtom(display, s, C.False)
f := C.CString("_NET_WM_STATE_FULLSCREEN")
defer C.free(unsafe.Pointer(f))
fullscreen = C.XInternAtom(display, f, C.False)
m := C.CString("navi")
defer C.free(unsafe.Pointer(m))
naviAtom = C.XInternAtom(display, m, C.False)
Eventpipe = make(chan Event)
go sendEvents()
// C.XFlush (display)
// println ("init ok")
return uint(maxX), uint(maxY), colourdepth
}
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
}
}
}