Example #1
0
func Ellipse(x, y, a, b int, n, f bool) {
	//
	x0, y0 := C.int(x-a), C.int(y-b)
	if f {
		if !n {
			C.XSetFunction(display, graphicsContext, C.GXinvert)
		} // C.GXcopyInverted ?
		if !xxb {
			C.XFillArc(display, C.Drawable(window), graphicsContext, C.int(x0), C.int(y0), C.uint(2*a), C.uint(2*b), 0, 64*360)
		}
		C.XFillArc(display, C.Drawable(pixmap), graphicsContext, C.int(x0), C.int(y0), C.uint(2*a), C.uint(2*b), 0, 64*360)
	} else {
		if !n {
			C.XSetFunction(display, graphicsContext, C.GXinvert)
		}
		if !xxb {
			C.XDrawArc(display, C.Drawable(window), graphicsContext, C.int(x0), C.int(y0), C.uint(2*a), C.uint(2*b), 0, 64*360)
		}
		C.XDrawArc(display, C.Drawable(pixmap), graphicsContext, C.int(x0), C.int(y0), C.uint(2*a), C.uint(2*b), 0, 64*360)
	}
	if !n {
		C.XSetFunction(display, graphicsContext, C.GXcopy)
	}
	C.XFlush(display)
}
Example #2
0
func Clr(x, y, w, h uint) {
	//
	C.XSetForeground(display, graphicsContext, cc(col.ScreenB))
	C.XFillRectangle(display, C.Drawable(window), graphicsContext, C.int(x), C.int(y), C.uint(w), C.uint(h))
	C.XFillRectangle(display, C.Drawable(pixmap), graphicsContext, C.int(x), C.int(y), C.uint(w), C.uint(h))
	C.XSetForeground(display, graphicsContext, cc(col.ScreenF))
	C.XFlush(display)
}
Example #3
0
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
}
Example #4
0
func Colours(F, B col.Colour) {
	//
	if !initialized {
		return
	}
	//  C.XSetForeground (display, graphicsContext, C.ulong(col.CodeF))
	//  C.XSetBackground (display, graphicsContext, C.ulong(col.CodeB))
	C.XSetForeground(display, graphicsContext, cc(col.ActualF))
	C.XSetBackground(display, graphicsContext, cc(col.ActualB))
	C.XFlush(display)
}
Example #5
0
func Invert(x, y, x1, y1 uint) {
	//
	if x > x1 || y > y1 {
	} // desaster
	C.XSetFunction(display, graphicsContext, C.GXinvert)
	if !xxb {
		C.XFillRectangle(display, C.Drawable(window), graphicsContext, C.int(x), C.int(y), C.uint(x1-x+1), C.uint(y1-y+1))
	}
	C.XFillRectangle(display, C.Drawable(pixmap), graphicsContext, C.int(x), C.int(y), C.uint(x1-x+1), C.uint(y1-y+1))
	C.XSetFunction(display, graphicsContext, C.GXcopy)
	C.XFlush(display)
}
Example #6
0
func Line(x, y, x1, y1 int, n bool) {
	//
	if !n {
		C.XSetFunction(display, graphicsContext, C.GXinvert)
	}
	if !xxb {
		C.XDrawLine(display, C.Drawable(window), graphicsContext, C.int(x), C.int(y), C.int(x1), C.int(y1))
	}
	C.XDrawLine(display, C.Drawable(pixmap), graphicsContext, C.int(x), C.int(y), C.int(x1), C.int(y1))
	if !n {
		C.XSetFunction(display, graphicsContext, C.GXcopy)
	}
	C.XFlush(display)
}
Example #7
0
func Point(x, y int, n bool) {
	//
	if !n {
		C.XSetFunction(display, graphicsContext, C.GXinvert)
	}
	if !xxb {
		C.XDrawPoint(display, C.Drawable(window), graphicsContext, C.int(x), C.int(y))
	}
	C.XDrawPoint(display, C.Drawable(pixmap), graphicsContext, C.int(x), C.int(y))
	if !n {
		C.XSetFunction(display, graphicsContext, C.GXcopy)
	}
	C.XFlush(display)
}
Example #8
0
func sendKey(disp *C.struct__XDisplay, strname string) {
	if disp == nil {
		fmt.Println("no X11 display available")
		return
	}

	var mod _Ctype_KeyCode

	if strings.HasPrefix(strname, "Ctrl+") {
		strname = strname[len("Ctrl+"):]
		modkey := "Control_L"
		mod = C.XKeysymToKeycode(disp, C.XStringToKeysym(C.CString(modkey)))
		if debug {
			fmt.Printf("send key %T (Control) code=%v\n", mod, mod)
		}
		C.XTestFakeKeyEvent(disp, C.uint(mod), 1, 0)
		C.XFlush(disp)
	}
	chstr := C.CString(strname)
	keysym := C.XStringToKeysym(chstr)
	keycode := C.XKeysymToKeycode(disp, keysym)
	if debug {
		fmt.Printf("send key (%s) sym=%v code=%v\n", strname, keysym, keycode)
	}
	C.XTestFakeKeyEvent(disp, C.uint(keycode), 1, 0)
	C.XFlush(disp)
	C.XTestFakeKeyEvent(disp, C.uint(keycode), 0, 0)
	C.XFlush(disp)
	if debug {
		fmt.Printf("hit key %v (keysym %v keycode %v)\n", strname, keysym, keycode)
	}
	fmt.Printf("mod is == %v\n", mod)
	if mod != 0 {
		C.XTestFakeKeyEvent(disp, C.uint(mod), 0, 0)
		C.XFlush(disp)
	}
}
Example #9
0
func Buf(on bool) {
	//
	if xxb == on {
		return
	}
	xxb = on
	if on {
		C.XSetForeground(display, graphicsContext, cc(col.ScreenB))
		C.XFillRectangle(display, C.Drawable(pixmap), graphicsContext, 0, 0, C.uint(xx), C.uint(yy))
		C.XSetForeground(display, graphicsContext, cc(col.ScreenF))
		C.XFlush(display)
	} else {
		pp2ff()
	}
}
Example #10
0
func Write(s string, x, y int, t bool) {
	//
	n := C.uint(len(s))
	if !t {
		C.XSetForeground(display, graphicsContext, C.ulong(col.CodeB))
		if !xxb {
			C.XFillRectangle(display, C.Drawable(window), graphicsContext, C.int(x), C.int(y), n*C.uint(ZB), C.uint(ZH))
		}
		C.XFillRectangle(display, C.Drawable(pixmap), graphicsContext, C.int(x), C.int(y), n*C.uint(ZB), C.uint(ZH))
		C.XSetForeground(display, graphicsContext, C.ulong(col.CodeF))
	}
	cs := C.CString(s)
	if !xxb {
		C.XDrawString(display, C.Drawable(window), graphicsContext, C.int(x), C.int(y)+ZA, cs, C.int(n))
	}
	C.XDrawString(display, C.Drawable(pixmap), graphicsContext, C.int(x), C.int(y)+ZA, cs, C.int(n))
	C.free(unsafe.Pointer(cs))
	C.XFlush(display)
}
Example #11
0
File: xlib.go Project: evmar/smash
// Loop runs the main X loop.
func (dpy *Display) Loop(uwin ui.Win) {
	win := uwin.(*Window)
	awaitEvent := make(chan bool)
	go func() {
		xfd := int(C.XConnectionNumber(dpy.dpy))
		for {
			<-awaitEvent
			err := waitUntilReadable(xfd)
			if err != nil {
				log.Fatalf("select %#v", err)
			}
			dpy.eventReady <- true
		}
	}()

	C.XFlush(dpy.dpy)
	awaitEvent <- true
	draw := false
	for {
		nextFrame := dpy.anims.NextFrame(draw)
		select {
		case <-dpy.eventReady:
			dpy.processXEvents(win)
			awaitEvent <- true
		case <-dpy.drawReady:
			draw = true
		case t := <-nextFrame:
			dpy.anims.Run()
			// log.Printf("draw %s", t)
			t = t
			cr := cairo.Create(win.bufSurface.Surface)
			win.delegate.Draw(cr)
			win.repaint(0, 0, win.width, win.height)
			C.XSync(dpy.dpy, 0)
			draw = false
		case f := <-dpy.funcs:
			f()
		case <-dpy.quit:
			return
		}
	}
}
Example #12
0
func Decode(x, y, w, h uint, b []byte) {
	//
	const M = C.ulong(1<<32 - 1)
	//////////////////////////////////////////////////////////////////////////////////////////////  steals a lot of time
	ximg := C.XGetImage(display, C.Drawable(window), C.int(x), C.int(y), C.uint(w), C.uint(h), M, C.XYPixmap)
	//////////////////////////////////////////////////////////////////////////////////////////////  steals a lot of time
	n := uint(0)
	//  var pixel C.ulong
	for j := uint(0); j < h; j++ {
		for i := uint(0); i < w; i++ {
			pixel := (C.ulong)(obj.Decode(n, b[n:n+4]).(uint))
			C.xPutPixel(ximg, C.int(i), C.int(j), pixel) // C.XPutPixel (ximg, C.int(i), C.int(j), pixel)
			n += 4
		}
	}
	C.XPutImage(display, C.Drawable(window), graphicsContext, ximg, 0, 0, C.int(x), C.int(y), C.uint(w), C.uint(h))
	C.XCopyArea(display, C.Drawable(window), C.Drawable(pixmap), graphicsContext, C.int(x), C.int(y), C.uint(w), C.uint(h), C.int(x), C.int(y))
	C.XFlush(display)
	C.xDestroyImage(ximg) // C.XDestroyImage (ximg)
}
Example #13
0
func PolygonFull(X, Y []int, n bool) {
	//
	l := len(X)
	if len(Y) != l {
		return
	}
	p := make([]C.XPoint, l)
	for i := 0; i < l; i++ {
		p[i].x, p[i].y = C.short(X[i]), C.short(Y[i])
	}
	if !n {
		C.XSetFunction(display, graphicsContext, C.GXcopyInverted)
	}
	if !xxb {
		C.XFillPolygon(display, C.Drawable(window), graphicsContext, &p[0], C.int(l), C.Convex, C.CoordModeOrigin)
	}
	C.XFillPolygon(display, C.Drawable(pixmap), graphicsContext, &p[0], C.int(l), C.Convex, C.CoordModeOrigin)
	if !n {
		C.XSetFunction(display, graphicsContext, C.GXcopy)
	}
	C.XFlush(display)
}
Example #14
0
func Segments(X, Y, X1, Y1 []int, n bool) {
	//
	l := len(X)
	if len(Y) != l {
		return
	}
	s := make([]C.XSegment, l)
	for i := 0; i < l; i++ {
		s[i].x1, s[i].y1, s[i].x2, s[i].y2 = C.short(X[i]), C.short(Y[i]), C.short(X1[i]), C.short(Y1[i])
	}
	if !n {
		C.XSetFunction(display, graphicsContext, C.GXinvert)
	}
	if !xxb {
		C.XDrawSegments(display, C.Drawable(window), graphicsContext, &s[0], C.int(l))
	}
	C.XDrawSegments(display, C.Drawable(pixmap), graphicsContext, &s[0], C.int(l))
	if !n {
		C.XSetFunction(display, graphicsContext, C.GXcopy)
	}
	C.XFlush(display)
}
Example #15
0
func Switch(x, y uint) {
	//
	if xx == maxX && yy == maxY {
		C.sw(display, window, window0, netwm_state, fullscreen, C.int(0))
	}
	xx, yy = C.uint(x), C.uint(y)
	if xx == maxX && yy == maxY {
		C.sw(display, window, window0, netwm_state, fullscreen, C.int(1))
	} else {
		C.XResizeWindow(display, window, xx, yy) // resizerequest.width, resizerequest.height
		C.XFlush(display)
	}
	C.XFreePixmap(display, pixmap)
	pixmap = C.XCreatePixmap(display, C.Drawable(window), xx, yy, bitdepth)
	C.XFreePixmap(display, pixmap1)
	pixmap1 = C.XCreatePixmap(display, C.Drawable(window), xx, yy, bitdepth)
	C.XSetForeground(display, graphicsContext, cc(col.ActualB))
	//
	C.XFillRectangle(display, C.Drawable(window), graphicsContext, 0, 0, xx, yy)
	C.XFillRectangle(display, C.Drawable(pixmap), graphicsContext, 0, 0, xx, yy)
	C.XFillRectangle(display, C.Drawable(pixmap1), graphicsContext, 0, 0, xx, yy)
	MouseDef(0, 0, int(xx-1), int(yy-1))
	//  var E *C.XEvent
	//  C.XNextEvent (display, E)
	//  et:= C.typ (&E) // et == *E.type
	//  switch et { case C.Expose, C.ConfigureNotify:
	//    for C.XCheckTypedEvent (display, C.int(et), E) == C.True { }
	//  case C.ReparentNotify:
	//    ;
	//  default:
	//    C.XPutBackEvent (display, E)
	//  }
	WarpMouse(int(xx)/2, int(yy)/2)
	//  C.XSync (display, C.False)
	//  if navi.initialized (naviFd) {
	//    go catchNavi ()
	//  }
}
Example #16
0
func Rectangle(x, y, w, h int, n, f bool) {
	//
	if f {
		if !n {
			C.XSetFunction(display, graphicsContext, C.GXinvert)
		} // C.GXcopyInverted ?
		if !xxb {
			C.XFillRectangle(display, C.Drawable(window), graphicsContext, C.int(x), C.int(y), C.uint(w), C.uint(h))
		}
		C.XFillRectangle(display, C.Drawable(pixmap), graphicsContext, C.int(x), C.int(y), C.uint(w), C.uint(h))
	} else {
		if !n {
			C.XSetFunction(display, graphicsContext, C.GXinvert)
		}
		if !xxb {
			C.XDrawRectangle(display, C.Drawable(window), graphicsContext, C.int(x), C.int(y), C.uint(w), C.uint(h))
		}
		C.XDrawRectangle(display, C.Drawable(pixmap), graphicsContext, C.int(x), C.int(y), C.uint(w), C.uint(h))
	}
	if !n {
		C.XSetFunction(display, graphicsContext, C.GXcopy)
	}
	C.XFlush(display)
}
Example #17
0
File: xlib.go Project: evmar/smash
// processXEvents does one read from the X fd, then processes all pending
// events.
func (dpy *Display) processXEvents(win *Window) {
	var event C.XEvent
	events := C.XEventsQueued(dpy.dpy, C.QueuedAfterReading)
	for i := 0; i < int(events); i++ {
		C.XNextEvent(dpy.dpy, &event)
		e := &event
		typ := xEventType(*(*C.int)(unsafe.Pointer(e)))
		// log.Printf("typ %s", typ.String())
		switch typ {
		case C.ConfigureNotify:
			e := (*C.XConfigureEvent)(unsafe.Pointer(e))
			win.resize(int(e.width), int(e.height))
		case C.Expose:
			e := (*C.XExposeEvent)(unsafe.Pointer(e))
			win.repaint(int(e.x), int(e.y), int(e.width), int(e.height))
		case C.KeyPress:
			e := (*C.XKeyEvent)(unsafe.Pointer(e))

			key := keys.Key{}
			if e.state&C.ControlMask != 0 {
				key.Mods |= keys.ModControl
			}
			if e.state&C.Mod1Mask != 0 {
				key.Mods |= keys.ModMeta
			}

			var buf [8]byte
			var keysym C.KeySym
			C.XLookupString(e, (*C.char)(unsafe.Pointer(&buf)), 8, &keysym, nil)
			nulpos := bytes.Index(buf[:], []byte{0})
			if nulpos > 0 {
				if nulpos > 1 {
					log.Printf("xlib: overlong key %q", buf[:nulpos])
				}
				key.Sym = keys.Sym(buf[0])
				if key.Mods&keys.ModControl != 0 {
					// Undo Ctl-A => "ASCII control character" mapping.
					key.Sym += 'a' - 1
				}
			} else {
				// See /usr/include/X11/keysymdef.h
				switch keysym {
				case C.XK_Left:
					key.Sym = keys.Left
				case C.XK_Right:
					key.Sym = keys.Right
				case C.XK_Up:
					key.Sym = keys.Up
				case C.XK_Down:
					key.Sym = keys.Down
				case C.XK_Shift_L, C.XK_Shift_R:
				case C.XK_Control_L, C.XK_Control_R:
				case C.XK_Meta_L, C.XK_Meta_R:
				case C.XK_Alt_L, C.XK_Alt_R:
				case C.XK_Super_L, C.XK_Super_R:
				case C.XK_Hyper_L, C.XK_Hyper_R:
				case C.XK_Caps_Lock:
					// ignore for now
				default:
					log.Printf("xlib: unhandled keysym %#v: %#v", keysym, e)
				}
			}
			win.delegate.Key(key)
		case C.KeyRelease:
			// ignore
		case C.ButtonPress:
			e := (*C.XButtonEvent)(unsafe.Pointer(e))
			switch e.button {
			case 4, 5:
				dy := -1
				if e.button == 5 {
					dy = 1
				}
				win.delegate.Scroll(dy)
			case 6, 7:
				// TODO horizontal scroll.
			default:
				log.Printf("unhandled button %#v", e)
			}
		case C.MapNotify:
			win.delegate.Mapped()
		case C.ReparentNotify:
			// ignore
		default:
			if typ > C.GenericEvent {
				// Cairo triggers shm events, which show up as extension
				// events with greater ids than C.GenericEvent.
				continue
			}
			log.Printf("unhandled ev %s", typ.String())
		}
	}
	C.XFlush(dpy.dpy)
}
Example #18
0
func WarpMouse(x, y int) {
	//
	C.XWarpPointer(display, C.None, window, 0, 0, 0, 0, C.int(x), C.int(y))
	C.XFlush(display)
}
Example #19
0
func pp2ff() {
	//
	C.XCopyArea(display, C.Drawable(pixmap), C.Drawable(window), graphicsContext, 0, 0, xx, yy, 0, 0)
	C.XFlush(display)
}