func (t *PDFStreamTextObject) WriteAt(text string, props TypesettingProps, x float64, y float64) error {
var layout *C.PangoLayout
var font_description *C.PangoFontDescription
font_description = C.pango_font_description_new()
cfontname := C.CString(props.Fontname)
defer C.free(unsafe.Pointer(cfontname))
C.pango_font_description_set_family(font_description, cfontname)
C.pango_font_description_set_weight(font_description, C.PANGO_WEIGHT_NORMAL)
C.pango_font_description_set_absolute_size(font_description, C.double(props.Fontsize)*C.PANGO_SCALE)
layout = C.pango_cairo_create_layout(t.context)
C.pango_layout_set_font_description(layout, font_description)
width := props.PageWidth - props.LeftMargin - props.RightMargin
fmt.Printf("width is %f\n", width)
C.pango_layout_set_width(layout, C.int(width*C.PANGO_SCALE))
C.pango_layout_set_justify(layout, C.TRUE)
ctext := C.CString(text)
defer C.free(unsafe.Pointer(ctext))
C.pango_layout_set_text(layout, ctext, -1)
C.cairo_set_source_rgb(t.context, 0.0, 0.0, 0.0)
C.cairo_move_to(t.context, C.double(x), C.double(y))
skip := props.Baselineskip
nlines := int(C.pango_layout_get_line_count(layout))
for i := 0; i < nlines; i++ {
C.cairo_move_to(t.context, C.double(x), C.double(y+float64(i)*skip))
C.pango_cairo_show_layout_line(t.context, C.pango_layout_get_line(layout, C.int(i)))
}
C.g_object_unref(C.gpointer(layout))
C.pango_font_description_free(font_description)
return nil
}
func GenerateTweetInfo(W *XWindow, t *anaconda.Tweet) *TweetInfo {
var text string
if t.RetweetedStatus != nil {
text = fmt.Sprintf("<i><small>%s</small></i> <span color='#5C5'>⇄</span> <b>%s</b> <small>@%s</small>\n%s", html.EscapeString(t.User.Name),
t.RetweetedStatus.User.Name, t.RetweetedStatus.User.ScreenName,
html.EscapeString(t.RetweetedStatus.Text))
} else {
text = fmt.Sprintf("<b>%s</b> <small>@%s</small>\n%s",
html.EscapeString(t.User.Name),
t.User.ScreenName,
html.EscapeString(t.Text))
}
text = strings.Replace(text, "&", "&", -1)
text = replaceURLS(text, func(s string) string { return "<span color='#88F'>" + s + "</span>" })
text += "\n<span size='x-large' color='#777'>↶ "
// Add favorite icon
favoriteColor := "#777"
favoriteText := " "
favoriteCount := t.FavoriteCount
if t.RetweetedStatus != nil {
favoriteCount = t.RetweetedStatus.FavoriteCount
}
if favoriteCount > 0 {
favoriteText = fmt.Sprintf("<span size='medium'> %-4d </span>", favoriteCount)
}
if t.Favorited {
favoriteColor = "#D22"
}
text += fmt.Sprintf("<span color='%s'>❤</span><span size='medium'>%s</span>", favoriteColor, favoriteText)
// Add RT icon
retweetColor := "#777"
retweetText := " "
if t.Retweeted {
retweetColor = "#3D3"
}
retweetCount := t.RetweetCount
if t.RetweetedStatus != nil {
retweetCount = t.RetweetedStatus.RetweetCount
}
if retweetCount > 0 {
retweetText = fmt.Sprintf("<span size='medium'> %-4d </span>", retweetCount)
}
text += fmt.Sprintf("<span color='%s'>⇄</span>%s", retweetColor, retweetText)
// Add "more options" icon
text += "<span color='#777'>…</span></span>"
userImageUrl := t.User.ProfileImageURL
if t.RetweetedStatus != nil {
userImageUrl = t.RetweetedStatus.User.ProfileImageURL
}
errorText := "[[INTERNAL ERROR, COULD NOT PROCESS TWEET]]"
var strippedText *C.char = nil //&outputText[0]
// Generate tweet layout
if C.pango_parse_markup(C.CString(text), -1, 0,
&W.AttrList,
&strippedText, nil, nil) != 1 {
fmt.Println("error parsing", text)
strippedText = C.CString(errorText)
}
layout := getLayout()
C.pango_layout_set_font_description(layout, W.FontDesc)
C.pango_layout_set_attributes(layout, W.AttrList)
C.pango_layout_set_text(layout, strippedText, -1)
Result := TweetInfo{
ID: t.Id,
Text: t.Text,
UserImage: userImageUrl,
Layout: layout,
}
return &Result
}
//void pango_layout_set_text (PangoLayout *layout,
// const char *text,
// int length);
func (v *Layout) SetText(text string, length int) {
cstr := C.CString(text)
defer C.free(unsafe.Pointer(cstr))
C.pango_layout_set_text(v.native(), (*C.char)(cstr), (C.int)(length))
}
func (v *Layout) SetText(s string) {
cs := C.CString(s)
C.pango_layout_set_text(v.GLayout, cs, -1)
C.free(unsafe.Pointer(cs))
}