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Merge pull request #1471 from acrisci/feature/i3bar-use-pango-markup 

i3bar: use Pango markup
This commit is contained in:
Michael Stapelberg 2015-02-21 12:19:26 -08:00
parent bb6823f5c7 e18e2b9f98
commit b9cc54f15b
7 changed files with 83 additions and 14 deletions
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3
docs/i3bar-protocol
View File

@ -119,7 +119,8 @@ click_events::
full_text::
The most simple block you can think of is one which just includes the
only required key, the +full_text+ key. i3bar will display the string
value and that’s it.
value parsed as
https://developer.gnome.org/pango/stable/PangoMarkupFormat.html[Pango markup].
short_text::
Where appropriate, the +short_text+ (string) entry should also be
provided. It will be used in case the status line needs to be shortened

5
docs/userguide
View File

@ -1625,6 +1625,10 @@ container to the next/previous workspace and +move container to workspace curren
See <<move_to_outputs>> for how to move a container/workspace to a different
RandR output.
Workspace names are parsed as
https://developer.gnome.org/pango/stable/PangoMarkupFormat.html[Pango markup]
by i3bar.
[[back_and_forth]]
To switch back to the previously focused workspace, use +workspace
back_and_forth+; likewise, you can move containers to the previously focused
@ -1646,6 +1650,7 @@ move [window|container] [to] workspace <prev|next|current>
-------------------------
bindsym $mod+1 workspace 1
bindsym $mod+2 workspace 2
bindsym $mod+3 workspace 3:<span foreground="red">vim</span>
...
bindsym $mod+Shift+1 move container to workspace 1

6
i3bar/src/child.c
View File

@ -182,7 +182,7 @@ static int stdin_boolean(void *context, int val) {
static int stdin_string(void *context, const unsigned char *val, size_t len) {
parser_ctx *ctx = context;
if (strcasecmp(ctx->last_map_key, "full_text") == 0) {
ctx->block.full_text = i3string_from_utf8_with_length((const char *)val, len);
ctx->block.full_text = i3string_from_markup_with_length((const char *)val, len);
}
if (strcasecmp(ctx->last_map_key, "color") == 0) {
sasprintf(&(ctx->block.color), "%.*s", len, val);
@ -196,7 +196,7 @@ static int stdin_string(void *context, const unsigned char *val, size_t len) {
ctx->block.align = ALIGN_LEFT;
}
} else if (strcasecmp(ctx->last_map_key, "min_width") == 0) {
i3String *text = i3string_from_utf8_with_length((const char *)val, len);
i3String *text = i3string_from_markup_with_length((const char *)val, len);
ctx->block.min_width = (uint32_t)predict_text_width(text);
i3string_free(text);
}
@ -304,7 +304,7 @@ static void read_flat_input(char *buffer, int length) {
buffer[length - 1] = '\0';
else
buffer[length] = '\0';
first->full_text = i3string_from_utf8(buffer);
first->full_text = i3string_from_markup(buffer);
}
static bool read_json_input(unsigned char *input, int length) {

6
i3bar/src/workspaces.c
View File

@ -123,12 +123,12 @@ static int workspaces_string_cb(void *params_, const unsigned char *val, size_t
/* Offset may be equal to length, in which case display the number */
params->workspaces_walk->name = (offset < len
? i3string_from_utf8_with_length(ws_name + offset, len - offset)
: i3string_from_utf8(ws_num));
? i3string_from_markup_with_length(ws_name + offset, len - offset)
: i3string_from_markup(ws_num));
} else {
/* Default case: just save the name */
params->workspaces_walk->name = i3string_from_utf8_with_length(ws_name, len);
params->workspaces_walk->name = i3string_from_markup_with_length(ws_name, len);
}
/* Save its rendered width */

18
include/libi3.h
View File

@ -141,6 +141,12 @@ int sasprintf(char **strp, const char *fmt, ...);
*/
i3String *i3string_from_utf8(const char *from_utf8);
/**
* Build an i3String from an UTF-8 encoded string in Pango markup.
*
*/
i3String *i3string_from_markup(const char *from_markup);
/**
* Build an i3String from an UTF-8 encoded string with fixed length.
* To be used when no proper NUL-terminaison is available.
@ -149,6 +155,13 @@ i3String *i3string_from_utf8(const char *from_utf8);
*/
i3String *i3string_from_utf8_with_length(const char *from_utf8, size_t num_bytes);
/**
* Build an i3String from an UTF-8 encoded string in Pango markup with fixed
* length.
*
*/
i3String *i3string_from_markup_with_length(const char *from_markup, size_t num_bytes);
/**
* Build an i3String from an UCS-2 encoded string.
* Returns the newly-allocated i3String.
@ -193,6 +206,11 @@ const xcb_char2b_t *i3string_as_ucs2(i3String *str);
*/
size_t i3string_get_num_bytes(i3String *str);
/**
* Whether the given i3String is in Pango markup.
*/
bool i3string_is_markup(i3String *str);
/**
* Returns the number of glyphs in an i3String.
*

24
libi3/font.c
View File

@ -102,7 +102,8 @@ static bool load_pango_font(i3Font *font, const char *desc) {
*
*/
static void draw_text_pango(const char *text, size_t text_len,
xcb_drawable_t drawable, int x, int y, int max_width) {
xcb_drawable_t drawable, int x, int y,
int max_width, bool is_markup) {
/* Create the Pango layout */
/* root_visual_type is cached in load_pango_font */
cairo_surface_t *surface = cairo_xcb_surface_create(conn, drawable,
@ -116,7 +117,10 @@ static void draw_text_pango(const char *text, size_t text_len,
pango_layout_set_wrap(layout, PANGO_WRAP_CHAR);
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_END);
pango_layout_set_text(layout, text, text_len);
if (is_markup)
pango_layout_set_markup(layout, text, text_len);
else
pango_layout_set_text(layout, text, text_len);
/* Do the drawing */
cairo_set_source_rgb(cr, pango_font_red, pango_font_green, pango_font_blue);
@ -135,7 +139,7 @@ static void draw_text_pango(const char *text, size_t text_len,
* Calculate the text width using Pango rendering.
*
*/
static int predict_text_width_pango(const char *text, size_t text_len) {
static int predict_text_width_pango(const char *text, size_t text_len, bool is_markup) {
/* Create a dummy Pango layout */
/* root_visual_type is cached in load_pango_font */
cairo_surface_t *surface = cairo_xcb_surface_create(conn, root_screen->root, root_visual_type, 1, 1);
@ -145,7 +149,12 @@ static int predict_text_width_pango(const char *text, size_t text_len) {
/* Get the font width */
gint width;
pango_layout_set_font_description(layout, savedFont->specific.pango_desc);
pango_layout_set_text(layout, text, text_len);
if (is_markup)
pango_layout_set_markup(layout, text, text_len);
else
pango_layout_set_text(layout, text, text_len);
pango_cairo_update_layout(cr, layout);
pango_layout_get_pixel_size(layout, &width, NULL);
@ -383,7 +392,7 @@ void draw_text(i3String *text, xcb_drawable_t drawable,
case FONT_TYPE_PANGO:
/* Render the text using Pango */
draw_text_pango(i3string_as_utf8(text), i3string_get_num_bytes(text),
drawable, x, y, max_width);
drawable, x, y, max_width, i3string_is_markup(text));
return;
#endif
default:
@ -422,7 +431,7 @@ void draw_text_ascii(const char *text, xcb_drawable_t drawable,
case FONT_TYPE_PANGO:
/* Render the text using Pango */
draw_text_pango(text, strlen(text),
drawable, x, y, max_width);
drawable, x, y, max_width, false);
return;
#endif
default:
@ -518,7 +527,8 @@ int predict_text_width(i3String *text) {
#if PANGO_SUPPORT
case FONT_TYPE_PANGO:
/* Calculate extents using Pango */
return predict_text_width_pango(i3string_as_utf8(text), i3string_get_num_bytes(text));
return predict_text_width_pango(i3string_as_utf8(text), i3string_get_num_bytes(text),
i3string_is_markup(text));
#endif
default:
assert(false);

35
libi3/string.c
View File

@ -20,6 +20,7 @@ struct _i3String {
xcb_char2b_t *ucs2;
size_t num_glyphs;
size_t num_bytes;
bool is_markup;
};
/*
@ -39,6 +40,19 @@ i3String *i3string_from_utf8(const char *from_utf8) {
return str;
}
/*
* Build an i3String from an UTF-8 encoded string in Pango markup.
*
*/
i3String *i3string_from_markup(const char *from_markup) {
i3String *str = i3string_from_utf8(from_markup);
/* Set the markup flag */
str->is_markup = true;
return str;
}
/*
* Build an i3String from an UTF-8 encoded string with fixed length.
* To be used when no proper NUL-terminaison is available.
@ -59,6 +73,20 @@ i3String *i3string_from_utf8_with_length(const char *from_utf8, size_t num_bytes
return str;
}
/*
* Build an i3String from an UTF-8 encoded string in Pango markup with fixed
* length.
*
*/
i3String *i3string_from_markup_with_length(const char *from_markup, size_t num_bytes) {
i3String *str = i3string_from_utf8_with_length(from_markup, num_bytes);
/* set the markup flag */
str->is_markup = true;
return str;
}
/*
* Build an i3String from an UCS-2 encoded string.
* Returns the newly-allocated i3String.
@ -133,6 +161,13 @@ size_t i3string_get_num_bytes(i3String *str) {
return str->num_bytes;
}
/*
* Whether the given i3String is in Pango markup.
*/
bool i3string_is_markup(i3String *str) {
return str->is_markup;
}
/*
* Returns the number of glyphs in an i3String.
*