func XMain(callbacks Callbacks) { dpy := C.XOpenDisplay(nil) w := C.XCreateSimpleWindow(dpy, C.XDefaultRootWindow(dpy), 0, 0, 600, 400, 0, 0, 0) C.XSelectInput(dpy, w, C.StructureNotifyMask|C.SubstructureNotifyMask|C.ExposureMask) C.XMapWindow(dpy, w) win := Window{dpy: dpy, xw: w} visual := C.XDefaultVisual(dpy, 0) surf := cairo.XlibSurfaceCreate(unsafe.Pointer(dpy), uint64(win.xw), unsafe.Pointer(visual), 10, 10) for { var e C.XEvent C.XNextEvent(dpy, &e) typ := XEventType(*(*C.int)(unsafe.Pointer(&e))) // log.Printf("X event: %s", typ) switch typ { case C.ConfigureNotify: e := (*C.XConfigureEvent)(unsafe.Pointer(&e)) surf.SetSize(int(e.width), int(e.height)) case C.Expose: cr := cairo.Create(surf.Surface) callbacks.Draw(cr, surf) default: // log.Printf("unknown X event %s", typ) } } }
func (d *Display) NewWindow(delegate ui.WinDelegate) ui.Win { w := C.XCreateSimpleWindow(d.dpy, C.XDefaultRootWindow(d.dpy), 0, 0, 640, 400, 0, 0, C.XWhitePixel(d.dpy, 0)) C.XSelectInput(d.dpy, w, C.StructureNotifyMask|C.SubstructureNotifyMask|C.ExposureMask|C.KeyPress|C.KeyRelease|C.ButtonPress) C.XMapWindow(d.dpy, w) return &Window{ delegate: delegate, dpy: d, xw: w, } }
func (window *XWindow) Create(width uint, height uint, title string) bool { dpy := C.XOpenDisplay(nil) scr := C.XDefaultScreen(dpy) root := C.XDefaultRootWindow(dpy) win := C.XCreateSimpleWindow(dpy, root, 0, 0, C.uint(width), C.uint(height), 0, C.XBlackPixel(dpy, scr), C.XBlackPixel(dpy, scr)) C.XStoreName(dpy, win, C.CString(title)) C.XMapWindow(dpy, win) window.dpy = dpy return true }
func CreateXWindow(width, height int) (*XWindow, error) { C.XInitThreads() W := &XWindow{} W.Display = C.XOpenDisplay(nil) if W.Display == nil { return &XWindow{}, errors.New("Can't open display") } W.Window = C.XCreateSimpleWindow(W.Display, C.XDefaultRootWindow(W.Display), 0, 0, C.uint(width), C.uint(height), 0, 0, 0xFF151515) C.XSetWindowBackgroundPixmap(W.Display, W.Window, 0) // This avoids flickering on resize C.XMapWindow(W.Display, W.Window) C.XStoreName(W.Display, W.Window, C.CString("gowitt")) C.XSelectInput(W.Display, W.Window, C.ExposureMask|C.KeyPressMask|C.ButtonPressMask) C.XFlush(W.Display) // Cairo W.Surface = C.cairo_xlib_surface_create(W.Display, C.Drawable(W.Window), C.XDefaultVisual(W.Display, 0), C.int(width), C.int(height)) C.cairo_xlib_surface_set_size(W.Surface, C.int(width), C.int(height)) W.Cairo = C.cairo_create(W.Surface) // Pango InitLayoutsCache(W.Cairo) W.PangoContext = C.pango_cairo_create_context(W.Cairo) W.FontDesc = C.pango_font_description_from_string(C.CString("Sans 10")) W.AttrList = C.pango_attr_list_new() placeholderImage = C.cairo_image_surface_create_from_png(C.CString("test.png")) W.UserImages = NewImageCache(func() { var ev C.XEvent exev := (*C.XExposeEvent)(unsafe.Pointer(&ev)) exev._type = C.Expose exev.count = 0 exev.window = W.Window exev.send_event = 1 exev.display = W.Display C.XSendEvent(W.Display, W.Window, 0, C.ExposureMask, &ev) C.XFlush(W.Display) }) return W, nil }
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 }