diff options
Diffstat (limited to 'examples/renderdemo.c')
| -rw-r--r-- | examples/renderdemo.c | 82 |
1 files changed, 77 insertions, 5 deletions
diff --git a/examples/renderdemo.c b/examples/renderdemo.c index e225fe7e..155b7714 100644 --- a/examples/renderdemo.c +++ b/examples/renderdemo.c @@ -58,10 +58,14 @@ int opt_runs = 1; PangoEllipsizeMode opt_ellipsize = PANGO_ELLIPSIZE_NONE; HintMode opt_hinting = HINT_DEFAULT; const char *opt_pangorc = NULL; +const char *opt_tab_spec; /* Text (or markup) to render */ static char *text; + +static PangoTabArray * parse_tab_spec (const char *p); + void fail (const char *format, ...) { @@ -128,6 +132,15 @@ make_layout(PangoContext *context, pango_font_description_free (font_description); + if (opt_tab_spec != NULL) + { + PangoTabArray *tabs; + + tabs = parse_tab_spec (opt_tab_spec); + pango_layout_set_tabs (layout, tabs); + pango_tab_array_free (tabs); + } + return layout; } @@ -369,11 +382,6 @@ parse_hinting (ArgContext *arg_context, const char *arg, gpointer data) { - static GEnumClass *class = NULL; - - if (!class) - class = g_type_class_ref (PANGO_TYPE_ELLIPSIZE_MODE); - if (strcmp (arg, "none") == 0) opt_hinting = HINT_NONE; else if (strcmp (arg, "auto") == 0) @@ -384,6 +392,68 @@ parse_hinting (ArgContext *arg_context, fail ("--hinting option must be one of none/auto/full"); } +static PangoTabArray * +parse_tab_spec (const char *p) +{ + PangoTabArray *tabs; + int tab_index; + + tab_index = 0; + tabs = pango_tab_array_new (0, FALSE); + + while (*p) + { + double pos; + int pos_units; + PangoTabAlign tab_align; + char *endpos; + + pos = g_ascii_strtod (p, &endpos); + if (p == (const char *)endpos) + goto failed; + p = endpos; + + pos_units = (pos * opt_dpi * PANGO_SCALE + 32) / 72; + + switch (*p) + { + case 'c': + p++; + tab_align = PANGO_TAB_CENTER; + break; + + case 'r': + p++; + tab_align = PANGO_TAB_RIGHT; + break; + + case 'l': + p++; + tab_align = PANGO_TAB_LEFT; + break; + + default: + break; + } + + if (*p == ',') + p++; + else if (*p) + goto failed; + + pango_tab_array_set_tab (tabs, tab_index, tab_align, pos_units); + tab_index++; + } + + return tabs; + +failed: + fail ("invalid --tab-spec option.\n" + "A tab spec should consist of a comma-separated list of tab-stop\n" + "positions in points optionally followed by one of 'l', 'c', and 'r'."); + return NULL; +} + void parse_options (int argc, char *argv[]) { @@ -422,6 +492,8 @@ parse_options (int argc, char *argv[]) ARG_INT, &opt_width, NULL }, { "indent", "Width in points to indent paragraphs", ARG_INT, &opt_indent, NULL }, + { "tab-spec", "Tab stops and alignment in points, like '100l,300r,500c,700'", + ARG_STRING, &opt_tab_spec, NULL }, { "runs", "Render text this many times", ARG_INT, &opt_runs, NULL }, { "pangorc", "pangorc file to use (default is ./pangorc if available)", |