コード例 #1
0
ファイル: shapedemo.go プロジェクト: sequoiar/openvg
// adjust the font to fit within a width
func (f *FW) fitwidth(width, adj int, s string) {
	f.tw = openvg.TextWidth(s, f.font, f.fontsize)
	for f.tw > float64(width) {
		f.fontsize -= adj
		f.tw = openvg.TextWidth(s, f.font, f.fontsize)
	}
}
コード例 #2
0
ファイル: shapedemo.go プロジェクト: sequoiar/openvg
// textwrap draws text at location, wrapping at the specified width
func textwrap(x, y, w float64, s string, font string, size int, leading, factor float64, color string) {
	openvg.FillColor(color)
	wordspacing := openvg.TextWidth("M", font, size)
	words := strings.Split(s, " ")
	xp := x
	yp := y
	edge := x + w
	for i := 0; i < len(words); i++ {
		tw := openvg.TextWidth(words[i], font, size)
		openvg.Text(xp, yp, words[i], font, size)
		xp += tw + (wordspacing * factor)
		if xp > edge {
			xp = x
			yp -= leading
		}

	}
}
コード例 #3
0
ファイル: twh.go プロジェクト: Ebiroll/openvg
// weather retrieves data from the forecast.io API, decodes and displays it.
func (d *display) weather(latlong string) {
	wdim := dimen{x: 0, y: d.height / 2, width: d.width / 2, height: d.height / 2}
	r, err := netread(fmt.Sprintf(weatherfmt, weatherAPIkey, latlong))
	if err != nil {
		fmt.Fprintf(os.Stderr, "Weather read error: %v\n", err)
		wdim.gerror(d.bgcolor, d.textcolor, "no weather")
		return
	}
	defer r.Close()
	var data Forecast
	err = json.NewDecoder(r).Decode(&data)
	if err != nil {
		fmt.Fprintf(os.Stderr, "%v\n", err)
		wdim.gerror(d.bgcolor, d.textcolor, "no weather")
		return
	}
	x := d.width * 0.05
	y := d.height * 0.70
	wsize := d.width / 20
	spacing := wsize * 2.0
	w1 := int(wsize)
	w2 := w1 / 2
	w3 := w1 / 4
	c := data.Currently
	temp := fmt.Sprintf("%0.f°", c.Temperature)
	tw := openvg.TextWidth(temp, "sans", w1)
	wdim.regionFill(d.bgcolor, d.textcolor)
	openvg.Text(x, y, temp, "sans", w1)
	if c.Temperature-c.FeelsLike > 1 {
		openvg.Text(x, y-(spacing/3),
			fmt.Sprintf("(feels like %0.f°)", c.FeelsLike), "sans", w3)
	}
	openvg.Text(x, y+spacing, c.Summary, "sans", w2)
	if c.PrecipProb > 0 {
		openvg.Text(x, y-(spacing*.6),
			fmt.Sprintf("%0.f%% Chance of precipitation", c.PrecipProb*100), "sans", w3)
	}

	ic := dimen{
		x:      x + tw + d.width*0.01,
		y:      d.height * 0.67,
		width:  d.width / 10,
		height: d.width / 10,
	}

	switch c.Icon {
	case "clear-day":
		ic.sun("orange")
	case "clear-night":
		ic.moon(d.bgcolor, d.textcolor)
	case "rain":
		ic.rain("skyblue")
	case "snow":
		ic.snow(d.textcolor)
	case "wind":
		ic.wind(d.bgcolor, d.textcolor)
	case "fog":
		ic.fog(d.textcolor)
	case "cloudy":
		ic.cloud(d.textcolor)
	case "partly-cloudy-day":
		ic.pcloud(d.textcolor)
	case "partly-cloudy-night":
		ic.npcloud("darkgray", d.textcolor)
	}
	openvg.End()
}