// imgtest draws images at the corners and center
func imagetest(w, h int) {
openvg.Start(w, h)
imgw := 422
imgh := 238
fiw := openvg.VGfloat(imgw)
fih := openvg.VGfloat(imgh)
fw := openvg.VGfloat(w)
fh := openvg.VGfloat(h)
vgzero := openvg.VGfloat(0.0)
cx := (fw / 2) - (fiw / 2)
cy := (fh / 2) - (fih / 2)
ulx := vgzero
uly := fh - fih
urx := fw - fiw
ury := uly
llx := vgzero
lly := vgzero
lrx := urx
lry := lly
openvg.Start(w, h)
openvg.Background(0, 0, 0)
openvg.Image(cx, cy, imgw, imgh, "desert1.jpg")
openvg.Image(ulx, uly, imgw, imgh, "desert2.jpg")
openvg.Image(urx, ury, imgw, imgh, "desert3.jpg")
openvg.Image(llx, lly, imgw, imgh, "desert4.jpg")
openvg.Image(lrx, lry, imgw, imgh, "desert5.jpg")
openvg.End()
}
func main() {
var cx, cy, cw, ch, midy int
message := "Now is the time for all good men to come to the aid of the party"
w, h := openvg.Init()
var speed openvg.VGfloat = 0.5
var x openvg.VGfloat = 0
midy = (h / 2)
fontsize := w / 50
cx = 0
ch = fontsize * 2
cw = w
cy = midy - (ch / 2)
rx, ry, rw, rh := openvg.VGfloat(cx), openvg.VGfloat(cy), openvg.VGfloat(cw), openvg.VGfloat(ch)
// scroll the text, only in the clipping rectangle
for x = 0; x < rw+speed; x += speed {
openvg.Start(w, h)
openvg.Background(255, 255, 255)
openvg.FillRGB(0, 0, 0, .2)
openvg.Rect(rx, ry, rw, rh)
openvg.ClipRect(cx, cy, cw, ch)
openvg.Translate(x, ry+openvg.VGfloat(fontsize/2))
openvg.FillRGB(0, 0, 0, 1)
openvg.Text(0, 0, message, "sans", fontsize)
openvg.ClipEnd()
openvg.End()
}
bufio.NewReader(os.Stdin).ReadBytes('\n')
openvg.Finish()
os.Exit(0)
}
func main() {
var color string
openvg.Start(width, height)
openvg.Background(200, 200, 200)
for i := 0; i < niter; i++ {
x := random(0, width)
y := random(height/3, (height*2)/3)
r := random(0, 10000)
switch {
case r >= 0 && r <= 2500:
color = "white"
case r > 2500 && r <= 5000:
color = "maroon"
case r > 5000 && r <= 7500:
color = "gray"
case r > 7500 && r <= 10000:
color = "black"
}
openvg.FillColor(color, openvg.VGfloat(opacity))
openvg.Circle(openvg.VGfloat(x), openvg.VGfloat(y), openvg.VGfloat(size))
}
openvg.End()
bufio.NewReader(os.Stdin).ReadByte()
openvg.Finish()
}
func paintBG(w, h openvg.VGfloat) {
if !showTrails {
openvg.Background(0, 0, 0)
return
}
openvg.FillRGB(0, 0, 0, 0.3)
openvg.Rect(0, 0, w, h)
}
// raspberry pi, scaled to the screen dimensions
func raspi(w, h int, s string) {
midx := openvg.VGfloat(w) / 2
midy := openvg.VGfloat(h) / 2
rw := midx
rh := (rw * 2) / 3
fontsize := w / 25
openvg.Start(w, h)
openvg.Background(255, 255, 255)
makepi(midx-(rw/2), midy-(rh/2), rw, rh)
openvg.FillRGB(128, 0, 0, 1)
openvg.TextMid(midx, midy-(rh/2)-openvg.VGfloat(fontsize*2), s, "sans", fontsize)
openvg.End()
}
// raspberry pi, scaled to the screen dimensions
func main() {
w, h := openvg.Init()
midx := openvg.VGfloat(w) / 2
midy := openvg.VGfloat(h) / 2
rw := midx
rh := (rw * 2) / 3
fontsize := w / 25
openvg.Start(w, h)
openvg.Background(255, 255, 255)
makepi(midx-(rw/2), midy-(rh/2), rw, rh)
makepi(200, 100, 75, 50)
openvg.FillRGB(128, 0, 0, 1)
openvg.TextMid(midx, midy-(rh/2)-openvg.VGfloat(fontsize*2), "The Raspberry Pi", "sans", fontsize)
WaitEnd()
}
// rotext draws text, rotated around the center of the screen, progressively faded
func rotext(w, h, n int, s string) {
fade := (100.0 / openvg.VGfloat(n)) / 100.0
deg := 360.0 / openvg.VGfloat(n)
x := openvg.VGfloat(w) / 2.0
y := openvg.VGfloat(h) / 2.0
alpha := openvg.VGfloat(1.0)
size := w / 8
openvg.Start(w, h)
openvg.Background(0, 0, 0)
openvg.Translate(x, y)
for i := 0; i < n; i++ {
openvg.FillRGB(255, 255, 255, alpha)
openvg.Text(0, 0, s, "serif", size)
alpha -= fade // fade
size += n // enlarge
openvg.Rotate(deg)
}
openvg.End()
}
// fontrange shows a range of fonts
func fontrange(w, h int) {
var x, lx, length openvg.VGfloat
y := openvg.VGfloat(h) / 2.0
w2 := openvg.VGfloat(w) / 2.0
spacing := openvg.VGfloat(50.0)
s2 := spacing / 2.0
sizes := []int{6, 7, 8, 9, 10, 11, 12, 14, 16, 18, 21, 24, 36, 48, 60, 72, 96}
openvg.Start(w, h)
openvg.Background(255, 255, 255)
// compute the length so we can center
length = 0.0
for _, s := range sizes {
length += openvg.VGfloat(s) + spacing
}
length -= spacing
lx = w2 - (length / 2) // center point
// for each size, display a character and label
x = lx
for _, s := range sizes {
openvg.FillRGB(128, 0, 0, 1)
openvg.TextMid(x, y, "a", "serif", s)
openvg.FillRGB(128, 128, 128, 1)
openvg.TextMid(x, y-spacing, fmt.Sprintf("%d", s), "sans", 16)
x += openvg.VGfloat(s) + spacing
}
// draw a openvg.Line below the characters, a curve above
x -= spacing
openvg.StrokeRGB(150, 150, 150, 0.5)
openvg.StrokeWidth(2)
openvg.Line(lx, y-s2, x, y-s2)
openvg.FillRGB(255, 255, 255, 1)
openvg.Qbezier(lx, y+s2, x, y+s2, x, y+(spacing*3))
openvg.End()
}
func main() {
var sreenHeight, cx, cy, cw, ch, midy int
message := "Scrolling texts could be useful if the information does not fit on screen"
w, h := openvg.Init()
sreenHeight = h
var speed openvg.VGfloat = 0.5
var x openvg.VGfloat = 0
midy = (h / 2)
fontsize := w / 50
cx = 0
ch = fontsize * 2
cw = w
cy = midy - (ch / 2)
var jsonData SLData
for {
response, err := http.Get("http://localhost:8000")
if err == nil {
defer response.Body.Close()
contents, err := ioutil.ReadAll(response.Body)
if err != nil {
fmt.Printf("Error reading http data, %s", err)
} else {
fmt.Printf("Got: %s\n", string(contents))
if err := json.Unmarshal(contents, &jsonData); err != nil {
panic(err)
}
fmt.Println(jsonData)
}
}
openvg.Start(w, h)
imgw, imgh := 0, 0
openvg.Background(255, 255, 255)
//SLHeight = 60
var imgPosY = openvg.VGfloat(sreenHeight - 70)
openvg.Image(4, imgPosY, imgw, imgh, "SL.jpg")
var TAB1 = openvg.VGfloat(4 * w / 20)
var TAB2 = openvg.VGfloat(8 * w / 20)
rx1, rw1, rh1 := openvg.VGfloat(cx), openvg.VGfloat(cw), openvg.VGfloat(ch)
ty := 0
rix := 0
// Buses
for ty = sreenHeight - (80 + int(rh1)); ty > 0 && rix < len(jsonData.ResponseData.Buses); ty -= ch {
tempy := openvg.VGfloat(ty)
//ry := openvg.VGfloat(ty)
if rix%2 == 0 {
openvg.FillRGB(0, 0, 0, .2)
//openvg.Rect(rx1, tempy, rw1, rh1)
openvg.FillRGB(0, 0, 0, 1)
tempy = tempy + 6.0
} else {
openvg.FillRGB(0, 0, 0, .4)
openvg.Rect(rx1, tempy, rw1, rh1)
tempy = tempy + 6.0
openvg.FillRGB(0, 0, 0, 1)
}
openvg.Text(rx1, tempy, jsonData.ResponseData.Buses[rix].LineNumber, "sans", fontsize)
drawTypeOfTransport(rx1+60, tempy+2, rw1, ch-20, jsonData.ResponseData.Buses[rix].TransportMode)
openvg.Text(rx1+100, tempy, jsonData.ResponseData.Buses[rix].StopPointDesignation, "sans", fontsize)
openvg.Text(rx1+TAB1, tempy, jsonData.ResponseData.Buses[rix].DisplayTime, "sans", fontsize)
var dest = jsonData.ResponseData.Buses[rix].Destination
dest = replaceAO(dest)
openvg.Text(rx1+TAB2, tempy, dest, "sans", fontsize)
//openvg.Translate(x, ry+openvg.VGfloat(fontsize/2))
//openvg.Background(255,255,0)
rix = rix + 1
}
var trainIx = 0
for ty = ty - 20; ty > 0 && trainIx < len(jsonData.ResponseData.Trains); ty -= ch {
tempy := openvg.VGfloat(ty)
//ry := openvg.VGfloat(ty)
if rix%2 == 0 {
openvg.FillRGB(0, 0, 0, .2)
//openvg.Rect(rx1, tempy, rw1, rh1)
openvg.FillRGB(0, 0, 0, 1)
tempy = tempy + 6.0
} else {
openvg.FillRGB(0, 0, 0, .4)
openvg.Rect(rx1, tempy, rw1, rh1)
tempy = tempy + 6.0
openvg.FillRGB(0, 0, 0, 1)
}
openvg.Text(rx1, tempy, jsonData.ResponseData.Trains[trainIx].LineNumber, "sans", fontsize)
drawTypeOfTransport(rx1+55, tempy+4, rw1, ch-20, jsonData.ResponseData.Trains[trainIx].TransportMode)
openvg.Text(rx1+TAB1, tempy, jsonData.ResponseData.Trains[trainIx].DisplayTime, "sans", fontsize)
var dest = jsonData.ResponseData.Trains[trainIx].Destination
dest = replaceAO(dest)
openvg.Text(rx1+TAB2, tempy, dest, "sans", fontsize)
//openvg.Translate(x, ry+openvg.VGfloat(fontsize/2))
//openvg.Background(255,255,0)
trainIx = trainIx + 1
rix = rix + 1
}
//openvg.End()
openvg.SaveEnd("dump.raw")
time.Sleep(60 * time.Second)
}
bufio.NewReader(os.Stdin).ReadBytes('\n')
rx, ry, rw, rh := openvg.VGfloat(cx), openvg.VGfloat(cy), openvg.VGfloat(cw), openvg.VGfloat(ch)
// scroll the text, only in the clipping rectangle
for x = 0; x < rw+speed; x += speed {
openvg.Start(w, h)
openvg.Background(255, 255, 255)
openvg.FillRGB(0, 0, 0, .2)
openvg.Rect(rx, ry, rw, rh)
openvg.ClipRect(cx, cy, cw, ch)
openvg.Translate(x, ry+openvg.VGfloat(fontsize/2))
openvg.FillRGB(0, 0, 0, 1)
openvg.Text(0, 0, message, "sans", fontsize)
openvg.ClipEnd()
openvg.End()
}
bufio.NewReader(os.Stdin).ReadBytes('\n')
openvg.Finish()
os.Exit(0)
}
func main() {
var cy, ch, midy int
var message []string
message = []string{" Black", "cats", "skitter", "and", "ghouls", "patter", "Happy", "Halloween"}
w, h := openvg.Init()
//var speed openvg.VGfloat = 0.5
var x openvg.VGfloat = 0
var vw, vh openvg.VGfloat
var midxx openvg.VGfloat = openvg.VGfloat(w / 2)
midy = (h / 2)
fontsize := w / 8
//cx = 0
ch = fontsize * 2
//cw = w
cy = midy - (ch / 2)
var redness uint8
var index int
//rx , rw, rh := openvg.VGfloat(cx) , openvg.VGfloat(cw), openvg.VGfloat(ch)
ry := openvg.VGfloat(cy)
// scroll the text, only in the clipping rectangle
index = 0
for {
for redness = 255; redness > 16; redness -= 2 {
ch = fontsize * 2
//cw = w
cy = midy - (ch / 2)
openvg.Start(w, h)
openvg.Background(redness, 0, 0)
openvg.FillRGB(0, 0, 0, .2)
//openvg.Rect(rx, ry, rw, rh)
//openvg.ClipRect(cx, cy, cw, ch)
openvg.Translate(x, ry+openvg.VGfloat(fontsize/2))
openvg.FillRGB(0, 0, 0, 1)
var fsiz int
fsiz = int(255 - redness)
openvg.TextMid(midxx, 0, message[index], "shf", fsiz)
openvg.ClipEnd()
openvg.End()
}
index = (index + 1) % 8
if index == 0 {
vw = openvg.VGfloat(w) - 200
vh = openvg.VGfloat(h) - 200
openvg.Video(100.0, 100.0, vw, vh, "test.h264")
}
if index == 0 {
var test, oix int
var xpos [40]float32
var ypos [40]float32
var rotate [40]float32
var spdx [40]float32
var spdy [40]float32
// Init positions
for test = 0; test < 40; test++ {
var rot = rand.Float32()
var rax = rand.Float32()
rax = float32(w) * rax
var ray = rand.Float32()
ray = float32(h) * ray
spdx[test] = float32(test) * rand.Float32()
spdy[test] = float32(test) * rand.Float32()
ypos[test] = ray
xpos[test] = rax
rot = 0
rotate[test] = rot
}
// Move around
for oix = 0; oix < 100; oix++ {
openvg.Start(w, h)
openvg.Background(0, 0, 0)
openvg.FillColor("red")
for test = 0; test < 40; test++ {
var rot = rand.Float32()
var rax = rand.Float32()*float32(4.0) - float32(2.0)
var ray = float32(4.0)*rand.Float32() - float32(2.0)
spdy[test] += ray
spdx[test] += rax
xpos[test] = xpos[test] + spdx[test]
ypos[test] = ypos[test] + spdy[test]
rotate[test] = rotate[test] + float32(rot*4-2)
openvg.Rotate(openvg.VGfloat(rotate[test]))
openvg.Translate(openvg.VGfloat(xpos[test]), openvg.VGfloat(ypos[test]))
openvg.TextMid(0, 0, "Happy Halloween", "shf", 30)
openvg.Translate(-openvg.VGfloat(xpos[test]), -openvg.VGfloat(ypos[test]))
openvg.Rotate(-openvg.VGfloat(rotate[test]))
}
openvg.End()
}
}
}
bufio.NewReader(os.Stdin).ReadBytes('\n')
openvg.Finish()
os.Exit(0)
}
func main() {
var sreenHeight, cx, cy, cw, ch int
message := "Hej Sandra tack forden mysiga kramen ..... <3 <3 Puss puss"
w, h := openvg.Init()
sreenHeight = h
var speed openvg.VGfloat = 4.0
var x openvg.VGfloat = 0
//midy = (h / 2)
fontsize := w / 50
cx = 0
ch = fontsize * 2
cw = w
//cy = midy - (ch / 2)
cy = h - 80
var jsonData SLData
var lastmill = makeTimestamp()
response, err := http.Get("http://localhost:8000")
if err == nil {
defer response.Body.Close()
contents, err := ioutil.ReadAll(response.Body)
if err != nil {
fmt.Printf("Error reading http data, %s", err)
} else {
fmt.Printf("Got: %s\n", string(contents))
if err := json.Unmarshal(contents, &jsonData); err != nil {
panic(err)
}
fmt.Println(jsonData)
}
}
openvg.Start(w, h)
openvg.End()
go PlayVideo(w, h)
for {
openvg.Start(w, h)
//fmt.Println("W,H",w,h)
rx, ry, rw, rh := openvg.VGfloat(cx), openvg.VGfloat(cy), openvg.VGfloat(cw), openvg.VGfloat(ch)
// scroll the text, only in the clipping rectangle
for x = 0; x < rw+speed; x += speed {
var mill = makeTimestamp()
var delta = (mill - lastmill) / 5
//fmt.Println("delta ", delta)
//speed
x = openvg.VGfloat(delta)
imgw, imgh := 0, 0
openvg.Background(0, 0, 0)
//SLHeight = 60
var imgPosY = openvg.VGfloat(sreenHeight - 120)
openvg.Image(8, imgPosY, imgw, imgh, "DA4FID.png")
var TAB1 = openvg.VGfloat(4 * w / 20)
//var TAB2 = openvg.VGfloat(8*w/20)
rx1, rw1, rh1 := openvg.VGfloat(cx), openvg.VGfloat(cw), openvg.VGfloat(ch)
ty := 0
rix := 0
// - (120 + int(rh1))
ty = sreenHeight - 140
var trainIx = 0
for ty = ty - 20; ty > 0 && trainIx < len(jsonData.ResponseData.Trains); ty -= ch {
tempy := openvg.VGfloat(ty)
//ry := openvg.VGfloat(ty)
if rix%2 == 0 {
openvg.FillRGB(255, 255, 255, .2)
//openvg.Rect(rx1, tempy, rw1, rh1)
tempy = tempy + 6.0
} else {
openvg.FillRGB(255, 255, 255, .4)
openvg.Rect(rx1, tempy, rw1/3, rh1)
tempy = tempy + 6.0
}
openvg.FillRGB(255, 255, 255, 1)
//openvg.Text(rx1, tempy, jsonData.ResponseData.Trains[trainIx].LineNumber , "sans", fontsize)
//drawTypeOfTransport(rx1+55,tempy+4,rw1,ch-20,jsonData.ResponseData.Trains[trainIx].TransportMode)
openvg.Text(rx1, tempy, jsonData.ResponseData.Trains[trainIx].DisplayTime, "sans", fontsize)
var dest = jsonData.ResponseData.Trains[trainIx].Destination
dest = replaceAO(dest)
openvg.Text(rx1+TAB1, tempy, dest, "sans", fontsize)
//openvg.Translate(x, ry+openvg.VGfloat(fontsize/2))
//openvg.Background(255,255,0)
trainIx = trainIx + 1
rix = rix + 1
}
imgw = 20
imgh = 20
//openvg.Image(8, 100 , imgw, imgh, "no_smoking.png")
// openvg.Start(w, h)
//openvg.Background(255, 255, 255)
openvg.FillRGB(100, 0, 0, 1)
openvg.Rect(rx, ry, rw, rh)
//openvg.ClipRect(cx, cy, cw, ch)
//openvg.Translate(x, ry+openvg.VGfloat(fontsize/2))
openvg.FillRGB(255, 255, 255, 1)
var pxp openvg.VGfloat = openvg.VGfloat(w) - openvg.VGfloat(x)
var pyp openvg.VGfloat = openvg.VGfloat(h) - openvg.VGfloat(58)
openvg.Text(pxp, pyp, message, "sans", fontsize)
//openvg.ClipEnd()
openvg.End()
}
//openvg.SaveEnd("dump.raw")
//time.Sleep(60*time.Second);
}
bufio.NewReader(os.Stdin).ReadBytes('\n')
bufio.NewReader(os.Stdin).ReadBytes('\n')
openvg.Finish()
os.Exit(0)
}
// interact controls the display of the deck
func interact(filename, searchterm string, w, h, slidenum int, gp float64) {
openvg.SaveTerm()
defer openvg.RestoreTerm()
var d deck.Deck
var err error
d, err = deck.Read(filename, w, h)
if err != nil {
fmt.Fprintf(os.Stderr, "%v\n", err)
return
}
openvg.RawTerm()
r := bufio.NewReader(os.Stdin)
lastslide := len(d.Slide) - 1
if slidenum > lastslide {
slidenum = lastslide
}
if slidenum < 0 {
slidenum = 0
}
if len(searchterm) > 0 {
sr := deck.Search(d, searchterm)
if sr >= 0 {
slidenum = sr
}
}
n := slidenum
xray := 1
initial := 0
imap := make(map[string]image.Image)
// respond to keyboard commands, 'q' to exit
for cmd := byte('0'); cmd != 'q'; cmd = readcmd(r) {
switch cmd {
// read/reload
case 'r', 18: // r, Ctrl-R
d, err = deck.Read(filename, w, h)
if err != nil {
fmt.Fprintf(os.Stderr, "%v\n", err)
return
}
loadimage(d, imap)
openvg.Background(0, 0, 0)
xray = 1
showslide(d, imap, n)
// save slide
case 's', 19: // s, Ctrl-S
openvg.SaveEnd(fmt.Sprintf("%s-slide-%04d", filename, n))
// first slide
case '0', '1', 1, '^': // 0,1,Ctrl-A,^
initial++
if initial == 1 {
loadimage(d, imap)
n = slidenum
} else {
n = 0
}
showslide(d, imap, n)
// last slide
case '*', 5, '$': // *, Crtl-E, $
n = lastslide
showslide(d, imap, n)
// next slide
case '+', 'n', '\n', ' ', '\t', '=', 14: // +,n,newline,space,tab,equal,Crtl-N
n++
if n > lastslide {
n = 0
}
showslide(d, imap, n)
// previous slide
case '-', 'p', 8, 16, 127: // -,p,Backspace,Ctrl-P,Del
n--
if n < 0 {
n = lastslide
}
showslide(d, imap, n)
// x-ray
case 'x', 24: // x, Ctrl-X
xray++
showslide(d, imap, n)
if xray%2 == 0 {
showgrid(d, n, gp)
}
// Escape sequence from remotes
case 27:
remote, rerr := r.ReadString('~')
if len(remote) > 2 && rerr == nil {
switch remote[1] {
case '3': // blank screen
openvg.Start(d.Canvas.Width, d.Canvas.Height)
openvg.FillColor("black")
openvg.Rect(0, 0, openvg.VGfloat(d.Canvas.Width), openvg.VGfloat(d.Canvas.Height))
openvg.End()
case '5': // back
n--
if n < 0 {
n = lastslide
}
showslide(d, imap, n)
case '6': // forward
n++
if n > lastslide {
n = 0
}
showslide(d, imap, n)
}
}
// search
case '/', 6: // slash, Ctrl-F
openvg.RestoreTerm()
searchterm, serr := r.ReadString('\n')
openvg.RawTerm()
if serr != nil {
continue
}
if len(searchterm) > 2 {
ns := deck.Search(d, searchterm[0:len(searchterm)-1])
if ns >= 0 {
showslide(d, imap, ns)
n = ns
}
}
}
}
}