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-rw-r--r--web/api/badges/web_buffer_svg.c216
1 files changed, 58 insertions, 158 deletions
diff --git a/web/api/badges/web_buffer_svg.c b/web/api/badges/web_buffer_svg.c
index b24fddedf..4f9826fb2 100644
--- a/web/api/badges/web_buffer_svg.c
+++ b/web/api/badges/web_buffer_svg.c
@@ -11,7 +11,7 @@
* https://github.com/badges/shields/blob/master/measure-text.js
*/
-static double verdana11_widths[256] = {
+static double verdana11_widths[128] = {
[0] = 0.0,
[1] = 0.0,
[2] = 0.0,
@@ -139,157 +139,36 @@ static double verdana11_widths[256] = {
[124] = 4.9951171875, // |
[125] = 6.982421875, // }
[126] = 9.001953125, // ~
- [127] = 0.0,
- [128] = 0.0,
- [129] = 0.0,
- [130] = 0.0,
- [131] = 0.0,
- [132] = 0.0,
- [133] = 0.0,
- [134] = 0.0,
- [135] = 0.0,
- [136] = 0.0,
- [137] = 0.0,
- [138] = 0.0,
- [139] = 0.0,
- [140] = 0.0,
- [141] = 0.0,
- [142] = 0.0,
- [143] = 0.0,
- [144] = 0.0,
- [145] = 0.0,
- [146] = 0.0,
- [147] = 0.0,
- [148] = 0.0,
- [149] = 0.0,
- [150] = 0.0,
- [151] = 0.0,
- [152] = 0.0,
- [153] = 0.0,
- [154] = 0.0,
- [155] = 0.0,
- [156] = 0.0,
- [157] = 0.0,
- [158] = 0.0,
- [159] = 0.0,
- [160] = 0.0,
- [161] = 0.0,
- [162] = 0.0,
- [163] = 0.0,
- [164] = 0.0,
- [165] = 0.0,
- [166] = 0.0,
- [167] = 0.0,
- [168] = 0.0,
- [169] = 0.0,
- [170] = 0.0,
- [171] = 0.0,
- [172] = 0.0,
- [173] = 0.0,
- [174] = 0.0,
- [175] = 0.0,
- [176] = 0.0,
- [177] = 0.0,
- [178] = 0.0,
- [179] = 0.0,
- [180] = 0.0,
- [181] = 0.0,
- [182] = 0.0,
- [183] = 0.0,
- [184] = 0.0,
- [185] = 0.0,
- [186] = 0.0,
- [187] = 0.0,
- [188] = 0.0,
- [189] = 0.0,
- [190] = 0.0,
- [191] = 0.0,
- [192] = 0.0,
- [193] = 0.0,
- [194] = 0.0,
- [195] = 0.0,
- [196] = 0.0,
- [197] = 0.0,
- [198] = 0.0,
- [199] = 0.0,
- [200] = 0.0,
- [201] = 0.0,
- [202] = 0.0,
- [203] = 0.0,
- [204] = 0.0,
- [205] = 0.0,
- [206] = 0.0,
- [207] = 0.0,
- [208] = 0.0,
- [209] = 0.0,
- [210] = 0.0,
- [211] = 0.0,
- [212] = 0.0,
- [213] = 0.0,
- [214] = 0.0,
- [215] = 0.0,
- [216] = 0.0,
- [217] = 0.0,
- [218] = 0.0,
- [219] = 0.0,
- [220] = 0.0,
- [221] = 0.0,
- [222] = 0.0,
- [223] = 0.0,
- [224] = 0.0,
- [225] = 0.0,
- [226] = 0.0,
- [227] = 0.0,
- [228] = 0.0,
- [229] = 0.0,
- [230] = 0.0,
- [231] = 0.0,
- [232] = 0.0,
- [233] = 0.0,
- [234] = 0.0,
- [235] = 0.0,
- [236] = 0.0,
- [237] = 0.0,
- [238] = 0.0,
- [239] = 0.0,
- [240] = 0.0,
- [241] = 0.0,
- [242] = 0.0,
- [243] = 0.0,
- [244] = 0.0,
- [245] = 0.0,
- [246] = 0.0,
- [247] = 0.0,
- [248] = 0.0,
- [249] = 0.0,
- [250] = 0.0,
- [251] = 0.0,
- [252] = 0.0,
- [253] = 0.0,
- [254] = 0.0,
- [255] = 0.0
+ [127] = 0.0
};
// find the width of the string using the verdana 11points font
-// re-write the string in place, skiping zero-length characters
-static inline double verdana11_width(char *s) {
+static inline double verdana11_width(const char *s, float em_size) {
double w = 0.0;
- char *d = s;
while(*s) {
- double t = verdana11_widths[(unsigned char)*s];
- if(t == 0.0)
+ // if UTF8 multibyte char found and guess it's width equal 1em
+ // as label width will be updated with JavaScript this is not so important
+
+ // TODO: maybe move UTF8 functions from url.c to separate util in libnetdata
+ // then use url_utf8_get_byte_length etc.
+ if(IS_UTF8_STARTBYTE(*s)) {
s++;
+ while(IS_UTF8_BYTE(*s) && !IS_UTF8_STARTBYTE(*s)){
+ s++;
+ }
+ w += em_size;
+ }
else {
- w += t + VERDANA_KERNING;
- if(d != s)
- *d++ = *s++;
- else
- d = ++s;
+ if(likely(!(*s & 0x80))){ // Byte 1XXX XXXX is not valid in UTF8
+ double t = verdana11_widths[(unsigned char)*s];
+ if(t != 0.0)
+ w += t + VERDANA_KERNING;
+ }
+ s++;
}
}
- *d = '\0';
w -= VERDANA_KERNING;
w += VERDANA_PADDING;
return w;
@@ -810,8 +689,7 @@ static inline void calc_colorz(const char *color, char *final, size_t len, calcu
#define COLOR_STRING_SIZE 100
void buffer_svg(BUFFER *wb, const char *label, calculated_number value, const char *units, const char *label_color, const char *value_color, int precision, int scale, uint32_t options) {
- char label_buffer[LABEL_STRING_SIZE + 1]
- , value_color_buffer[COLOR_STRING_SIZE + 1]
+ char value_color_buffer[COLOR_STRING_SIZE + 1]
, value_string[VALUE_STRING_SIZE + 1]
, label_escaped[LABEL_STRING_SIZE + 1]
, value_escaped[VALUE_STRING_SIZE + 1]
@@ -831,14 +709,11 @@ void buffer_svg(BUFFER *wb, const char *label, calculated_number value, const ch
calc_colorz(value_color, value_color_buffer, COLOR_STRING_SIZE, value);
format_value_and_unit(value_string, VALUE_STRING_SIZE, (options & RRDR_OPTION_DISPLAY_ABS)?calculated_number_fabs(value):value, units, precision);
- // we need to copy the label, since verdana11_width may write to it
- strncpyz(label_buffer, label, LABEL_STRING_SIZE);
-
- label_width = verdana11_width(label_buffer) + (BADGE_HORIZONTAL_PADDING * 2);
- value_width = verdana11_width(value_string) + (BADGE_HORIZONTAL_PADDING * 2);
+ label_width = verdana11_width(label, font_size) + (BADGE_HORIZONTAL_PADDING * 2);
+ value_width = verdana11_width(value_string, font_size) + (BADGE_HORIZONTAL_PADDING * 2);
total_width = label_width + value_width;
- escape_xmlz(label_escaped, label_buffer, LABEL_STRING_SIZE);
+ escape_xmlz(label_escaped, label, LABEL_STRING_SIZE);
escape_xmlz(value_escaped, value_string, VALUE_STRING_SIZE);
escape_xmlz(label_color_escaped, color_map(label_color), COLOR_STRING_SIZE);
escape_xmlz(value_color_escaped, color_map(value_color_buffer), COLOR_STRING_SIZE);
@@ -862,19 +737,43 @@ void buffer_svg(BUFFER *wb, const char *label, calculated_number value, const ch
"<stop offset=\"1\" stop-opacity=\".1\"/>"
"</linearGradient>"
"<mask id=\"round\">"
- "<rect width=\"%0.2f\" height=\"%0.2f\" rx=\"%0.2f\" fill=\"#fff\"/>"
+ "<rect class=\"bdge-ttl-width\" width=\"%0.2f\" height=\"%0.2f\" rx=\"%0.2f\" fill=\"#fff\"/>"
"</mask>"
"<g mask=\"url(#round)\">"
- "<rect width=\"%0.2f\" height=\"%0.2f\" fill=\"%s\"/>"
- "<rect x=\"%0.2f\" width=\"%0.2f\" height=\"%0.2f\" fill=\"%s\"/>"
- "<rect width=\"%0.2f\" height=\"%0.2f\" fill=\"url(#smooth)\"/>"
+ "<rect class=\"bdge-rect-lbl\" width=\"%0.2f\" height=\"%0.2f\" fill=\"%s\"/>"
+ "<rect class=\"bdge-rect-val\" x=\"%0.2f\" width=\"%0.2f\" height=\"%0.2f\" fill=\"%s\"/>"
+ "<rect class=\"bdge-ttl-width\" width=\"%0.2f\" height=\"%0.2f\" fill=\"url(#smooth)\"/>"
"</g>"
"<g fill=\"#fff\" text-anchor=\"middle\" font-family=\"DejaVu Sans,Verdana,Geneva,sans-serif\" font-size=\"%0.2f\">"
- "<text x=\"%0.2f\" y=\"%0.0f\" fill=\"#010101\" fill-opacity=\".3\">%s</text>"
- "<text x=\"%0.2f\" y=\"%0.0f\">%s</text>"
- "<text x=\"%0.2f\" y=\"%0.0f\" fill=\"#010101\" fill-opacity=\".3\">%s</text>"
- "<text x=\"%0.2f\" y=\"%0.0f\">%s</text>"
+ "<text class=\"bdge-lbl-lbl\" x=\"%0.2f\" y=\"%0.0f\" fill=\"#010101\" fill-opacity=\".3\">%s</text>"
+ "<text class=\"bdge-lbl-lbl\" x=\"%0.2f\" y=\"%0.0f\">%s</text>"
+ "<text class=\"bdge-lbl-val\" x=\"%0.2f\" y=\"%0.0f\" fill=\"#010101\" fill-opacity=\".3\">%s</text>"
+ "<text class=\"bdge-lbl-val\" x=\"%0.2f\" y=\"%0.0f\">%s</text>"
"</g>"
+ "<script type=\"text/javascript\">"
+ "var bdg_horiz_padding = %d;"
+ "function netdata_bdge_each(list, attr, value){"
+ "Array.prototype.forEach.call(list, function(el){"
+ "el.setAttribute(attr, value);"
+ "});"
+ "};"
+ "var this_svg = document.currentScript.closest(\"svg\");"
+ "var elem_lbl = this_svg.getElementsByClassName(\"bdge-lbl-lbl\");"
+ "var elem_val = this_svg.getElementsByClassName(\"bdge-lbl-val\");"
+ "var lbl_size = elem_lbl[0].getBBox();"
+ "var val_size = elem_val[0].getBBox();"
+ "var width_total = lbl_size.width + bdg_horiz_padding*2;"
+ "this_svg.getElementsByClassName(\"bdge-rect-lbl\")[0].setAttribute(\"width\", width_total);"
+ "netdata_bdge_each(elem_lbl, \"x\", (lbl_size.width / 2) + bdg_horiz_padding);"
+ "netdata_bdge_each(elem_val, \"x\", width_total + (val_size.width / 2) + bdg_horiz_padding);"
+ "var val_rect = this_svg.getElementsByClassName(\"bdge-rect-val\")[0];"
+ "val_rect.setAttribute(\"width\", val_size.width + bdg_horiz_padding*2);"
+ "val_rect.setAttribute(\"x\", width_total);"
+ "width_total += val_size.width + bdg_horiz_padding*2;"
+ "var width_update_elems = this_svg.getElementsByClassName(\"bdge-ttl-width\");"
+ "netdata_bdge_each(width_update_elems, \"width\", width_total);"
+ "this_svg.setAttribute(\"width\", width_total);"
+ "</script>"
"</svg>",
total_width, height,
total_width, height, round_corner,
@@ -885,7 +784,8 @@ void buffer_svg(BUFFER *wb, const char *label, calculated_number value, const ch
label_width / 2, ceil(height - text_offset), label_escaped,
label_width / 2, ceil(height - text_offset - 1.0), label_escaped,
label_width + value_width / 2 -1, ceil(height - text_offset), value_escaped,
- label_width + value_width / 2 -1, ceil(height - text_offset - 1.0), value_escaped);
+ label_width + value_width / 2 -1, ceil(height - text_offset - 1.0), value_escaped,
+ BADGE_HORIZONTAL_PADDING );
}
int web_client_api_request_v1_badge(RRDHOST *host, struct web_client *w, char *url) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-23 17:10:42 +0000