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-rw-r--r--app-admin/conky/files/conky-1.8.1-utf8-scroll.patch104
1 files changed, 104 insertions, 0 deletions
diff --git a/app-admin/conky/files/conky-1.8.1-utf8-scroll.patch b/app-admin/conky/files/conky-1.8.1-utf8-scroll.patch
new file mode 100644
index 00000000..8b9e1e8f
--- /dev/null
+++ b/app-admin/conky/files/conky-1.8.1-utf8-scroll.patch
@@ -0,0 +1,104 @@
+From b1f6a30bcce020b3c377434137de9856a09b899a Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Amadeusz=20=C5=BBo=C5=82nowski?= <aidecoe@aidecoe.name>
+Date: Fri, 11 Nov 2011 11:27:43 +0100
+Subject: [PATCH] Make scroll UTF-8 aware. Fixes bug #3134941.
+
+---
+ src/scroll.c | 44 ++++++++++++++++++++++++++++++++++++++++++--
+ 1 files changed, 42 insertions(+), 2 deletions(-)
+
+diff --git a/src/scroll.c b/src/scroll.c
+index f78f807..738db0d 100644
+--- a/src/scroll.c
++++ b/src/scroll.c
+@@ -34,12 +34,33 @@
+
+ struct scroll_data {
+ char *text;
++ unsigned int show_orig;
+ unsigned int show;
+ unsigned int step;
+ unsigned int start;
+ long resetcolor;
+ };
+
++int utf8_charlen(char c) {
++ unsigned char uc = (unsigned char) c;
++ int len = 0;
++
++ if ((uc & 0x80) == 0)
++ return 1;
++
++ while ((uc & 0x80) != 0) {
++ ++len;
++ uc <<= 1;
++ }
++
++ return (len > 0 && len <= 4) ? len : -1;
++}
++
++int is_utf8_char_tail(char c) {
++ unsigned char uc = (unsigned char) c;
++ return (uc & 0xc0) == 0x80;
++}
++
+ void parse_scroll_arg(struct text_object *obj, const char *arg, void *free_at_crash)
+ {
+ struct scroll_data *sd;
+@@ -60,15 +81,18 @@ void parse_scroll_arg(struct text_object *obj, const char *arg, void *free_at_cr
+ sd->step = 1;
+ }
+ sd->text = malloc(strlen(arg + n1) + sd->show + 1);
++ // sd->show value may change when there are UTF-8 chars to be shown, so
++ // save its origin value
++ sd->show_orig = sd->show;
+
+ if (strlen(arg) > sd->show) {
+ for(n2 = 0; (unsigned int) n2 < sd->show; n2++) {
+- sd->text[n2] = ' ';
++ sd->text[n2] = ' ';
+ }
+ sd->text[n2] = 0;
+ }
+ else
+- sd->text[0] = 0;
++ sd->text[0] = 0;
+
+ strcat(sd->text, arg + n1);
+ sd->start = 0;
+@@ -82,9 +106,13 @@ void print_scroll(struct text_object *obj, char *p, int p_max_size, struct infor
+ {
+ struct scroll_data *sd = obj->data.opaque;
+ unsigned int j, colorchanges = 0, frontcolorchanges = 0, visibcolorchanges = 0, strend;
++ int charlen = 0;
++ unsigned int utf8lenfix = 0;
+ char *pwithcolors;
+ char buf[max_user_text];
+
++ sd->show = sd->show_orig;
++
+ if (!sd)
+ return;
+
+@@ -109,6 +137,18 @@ void print_scroll(struct text_object *obj, char *p, int p_max_size, struct infor
+ while(*(buf + sd->start) == SPECIAL_CHAR) {
+ sd->start++;
+ }
++ //skip parts of UTF-8 character which messes up display
++ while(is_utf8_char_tail(*(buf + sd->start))) {
++ sd->start++;
++ }
++ //extend length to be shown for wide characters
++ j = 0;
++ while(j < sd->show + visibcolorchanges + utf8lenfix) {
++ charlen = utf8_charlen(*(buf + sd->start + j));
++ utf8lenfix += (charlen > 1 ? charlen - 1 : 0);
++ j += charlen;
++ }
++ sd->show = sd->show_orig + utf8lenfix;
+ //place all chars that should be visible in p, including colorchanges
+ for(j=0; j < sd->show + visibcolorchanges; j++) {
+ p[j] = *(buf + sd->start + j);
+--
+1.7.8.rc1
+