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yambar/config.c
Daniel Eklöf b97ba80aea
bar: add border.{left,right,top,bottom}-width 
This allows you to configure the width of each side of the border
individually. border.width can still be used, and will set all four
borders to the same width.

Closes #77
2021-07-28 11:00:04 +02:00

395 lines
14 KiB
C
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#include "config.h"
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <assert.h>
#include <dlfcn.h>
#include "bar/bar.h"
#include "color.h"
#include "config-verify.h"
#include "module.h"
#include "plugin.h"
#define LOG_MODULE "config"
#define LOG_ENABLE_DBG 0
#include "log.h"
static uint8_t
hex_nibble(char hex)
{
assert((hex >= '0' && hex <= '9') ||
(hex >= 'a' && hex <= 'f') ||
(hex >= 'A' && hex <= 'F'));
if (hex >= '0' && hex <= '9')
return hex - '0';
else if (hex >= 'a' && hex <= 'f')
return hex - 'a' + 10;
else
return hex - 'A' + 10;
}
static uint8_t
hex_byte(const char hex[2])
{
uint8_t upper = hex_nibble(hex[0]);
uint8_t lower = hex_nibble(hex[1]);
return upper << 4 | lower;
}
pixman_color_t
conf_to_color(const struct yml_node *node)
{
const char *hex = yml_value_as_string(node);
assert(hex != NULL);
assert(strlen(hex) == 8);
uint16_t red = hex_byte(&hex[0]);
uint16_t green = hex_byte(&hex[2]);
uint16_t blue = hex_byte(&hex[4]);
uint16_t alpha = hex_byte(&hex[6]);
alpha |= alpha << 8;
return (pixman_color_t){
.red = (uint32_t)(red << 8 | red) * alpha / 0xffff,
.green = (uint32_t)(green << 8 | green) * alpha / 0xffff,
.blue = (uint32_t)(blue << 8 | blue) * alpha / 0xffff,
.alpha = alpha,
};
}
struct fcft_font *
conf_to_font(const struct yml_node *node)
{
return fcft_from_name(1, &(const char *){yml_value_as_string(node)}, NULL);
}
struct deco *
conf_to_deco(const struct yml_node *node)
{
struct yml_dict_iter it = yml_dict_iter(node);
const struct yml_node *deco_type = it.key;
const struct yml_node *deco_data = it.value;
const char *type = yml_value_as_string(deco_type);
const struct deco_iface *iface = plugin_load_deco(type);
assert(iface != NULL);
return iface->from_conf(deco_data);
}
static struct particle *
particle_simple_list_from_config(const struct yml_node *node,
struct conf_inherit inherited)
{
size_t count = yml_list_length(node);
struct particle *parts[count];
size_t idx = 0;
for (struct yml_list_iter it = yml_list_iter(node);
it.node != NULL;
yml_list_next(&it), idx++)
{
parts[idx] = conf_to_particle(it.node, inherited);
}
/* Lazy-loaded function pointer to particle_list_new() */
static struct particle *(*particle_list_new)(
struct particle *common,
struct particle *particles[], size_t count,
int left_spacing, int right_spacing) = NULL;
if (particle_list_new == NULL) {
const struct plugin *plug = plugin_load("list", PLUGIN_PARTICLE);
particle_list_new = dlsym(plug->lib, "particle_list_new");
assert(particle_list_new != NULL);
}
struct particle *common = particle_common_new(
0, 0, NULL, fcft_clone(inherited.font), inherited.foreground, NULL);
return particle_list_new(common, parts, count, 0, 2);
}
struct particle *
conf_to_particle(const struct yml_node *node, struct conf_inherit inherited)
{
if (yml_is_list(node))
return particle_simple_list_from_config(node, inherited);
struct yml_dict_iter pair = yml_dict_iter(node);
const char *type = yml_value_as_string(pair.key);
const struct yml_node *margin = yml_get_value(pair.value, "margin");
const struct yml_node *left_margin = yml_get_value(pair.value, "left-margin");
const struct yml_node *right_margin = yml_get_value(pair.value, "right-margin");
const struct yml_node *on_click = yml_get_value(pair.value, "on-click");
const struct yml_node *font_node = yml_get_value(pair.value, "font");
const struct yml_node *foreground_node = yml_get_value(pair.value, "foreground");
const struct yml_node *deco_node = yml_get_value(pair.value, "deco");
int left = margin != NULL ? yml_value_as_int(margin) :
left_margin != NULL ? yml_value_as_int(left_margin) : 0;
int right = margin != NULL ? yml_value_as_int(margin) :
right_margin != NULL ? yml_value_as_int(right_margin) : 0;
const char *on_click_templates[MOUSE_BTN_COUNT] = {NULL};
if (on_click != NULL) {
const char *legacy = yml_value_as_string(on_click);
if (legacy != NULL)
on_click_templates[MOUSE_BTN_LEFT] = legacy;
if (yml_is_dict(on_click)) {
for (struct yml_dict_iter it = yml_dict_iter(on_click);
it.key != NULL;
yml_dict_next(&it))
{
const char *key = yml_value_as_string(it.key);
const char *template = yml_value_as_string(it.value);
if (strcmp(key, "left") == 0)
on_click_templates[MOUSE_BTN_LEFT] = template;
else if (strcmp(key, "middle") == 0)
on_click_templates[MOUSE_BTN_MIDDLE] = template;
else if (strcmp(key, "right") == 0)
on_click_templates[MOUSE_BTN_RIGHT] = template;
else if (strcmp(key, "wheel-up") == 0)
on_click_templates[MOUSE_BTN_WHEEL_UP] = template;
else if (strcmp(key, "wheel-down") == 0)
on_click_templates[MOUSE_BTN_WHEEL_DOWN] = template;
else
assert(false);
}
}
}
struct deco *deco = deco_node != NULL ? conf_to_deco(deco_node) : NULL;
/*
* Font and foreground are inheritable attributes. Each particle
* may specify its own font/foreground values, which will then be
* used by itself, and all its sub-particles. If *not* specified,
* we inherit the values from our parent. Note that since
* particles actually *use* the font/foreground values, we must
* clone the font, since each particle takes ownership of its own
* font.
*/
struct fcft_font *font = font_node != NULL
? conf_to_font(font_node) : fcft_clone(inherited.font);
pixman_color_t foreground = foreground_node != NULL
? conf_to_color(foreground_node) : inherited.foreground;
/* Instantiate base/common particle */
struct particle *common = particle_common_new(
left, right, on_click_templates, font, foreground, deco);
const struct particle_iface *iface = plugin_load_particle(type);
assert(iface != NULL);
return iface->from_conf(pair.value, common);
}
struct bar *
conf_to_bar(const struct yml_node *bar, enum bar_backend backend)
{
if (!conf_verify_bar(bar))
return NULL;
struct bar_config conf = {
.backend = backend,
};
/*
* Required attributes
*/
const struct yml_node *height = yml_get_value(bar, "height");
conf.height = yml_value_as_int(height);
const struct yml_node *location = yml_get_value(bar, "location");
conf.location = strcmp(yml_value_as_string(location), "top") == 0
? BAR_TOP : BAR_BOTTOM;
const struct yml_node *background = yml_get_value(bar, "background");
conf.background = conf_to_color(background);
/*
* Optional attributes
*/
const struct yml_node *monitor = yml_get_value(bar, "monitor");
if (monitor != NULL)
conf.monitor = yml_value_as_string(monitor);
const struct yml_node *spacing = yml_get_value(bar, "spacing");
if (spacing != NULL)
conf.left_spacing = conf.right_spacing = yml_value_as_int(spacing);
const struct yml_node *left_spacing = yml_get_value(bar, "left-spacing");
if (left_spacing != NULL)
conf.left_spacing = yml_value_as_int(left_spacing);
const struct yml_node *right_spacing = yml_get_value(bar, "right-spacing");
if (right_spacing != NULL)
conf.right_spacing = yml_value_as_int(right_spacing);
const struct yml_node *margin = yml_get_value(bar, "margin");
if (margin != NULL)
conf.left_margin = conf.right_margin = yml_value_as_int(margin);
const struct yml_node *left_margin = yml_get_value(bar, "left-margin");
if (left_margin != NULL)
conf.left_margin = yml_value_as_int(left_margin);
const struct yml_node *right_margin = yml_get_value(bar, "right-margin");
if (right_margin != NULL)
conf.right_margin = yml_value_as_int(right_margin);
const struct yml_node *trackpad_sensitivity =
yml_get_value(bar, "trackpad-sensitivity");
conf.trackpad_sensitivity = trackpad_sensitivity != NULL
? yml_value_as_int(trackpad_sensitivity)
: 30;
const struct yml_node *border = yml_get_value(bar, "border");
if (border != NULL) {
const struct yml_node *width = yml_get_value(border, "width");
const struct yml_node *left_width = yml_get_value(border, "left-width");
const struct yml_node *right_width = yml_get_value(border, "right-width");
const struct yml_node *top_width = yml_get_value(border, "top-width");
const struct yml_node *bottom_width = yml_get_value(border, "bottom-width");
const struct yml_node *color = yml_get_value(border, "color");
const struct yml_node *margin = yml_get_value(border, "margin");
const struct yml_node *left_margin = yml_get_value(border, "left-margin");
const struct yml_node *right_margin = yml_get_value(border, "right-margin");
const struct yml_node *top_margin = yml_get_value(border, "top-margin");
const struct yml_node *bottom_margin = yml_get_value(border, "bottom-margin");
if (width != NULL)
conf.border.left_width =
conf.border.right_width =
conf.border.top_width =
conf.border.bottom_width = yml_value_as_int(width);
if (left_width != NULL)
conf.border.left_width = yml_value_as_int(left_width);
if (right_width != NULL)
conf.border.right_width = yml_value_as_int(right_width);
if (top_width != NULL)
conf.border.top_width = yml_value_as_int(top_width);
if (bottom_width != NULL)
conf.border.bottom_width = yml_value_as_int(bottom_width);
if (color != NULL)
conf.border.color = conf_to_color(color);
if (margin != NULL)
conf.border.left_margin =
conf.border.right_margin =
conf.border.top_margin =
conf.border.bottom_margin = yml_value_as_int(margin);
if (left_margin != NULL)
conf.border.left_margin = yml_value_as_int(left_margin);
if (right_margin != NULL)
conf.border.right_margin = yml_value_as_int(right_margin);
if (top_margin != NULL)
conf.border.top_margin = yml_value_as_int(top_margin);
if (bottom_margin != NULL)
conf.border.bottom_margin = yml_value_as_int(bottom_margin);
}
/*
* Create a default font and foreground
*
* These aren't used by the bar itself, but passed down to modules
* and particles. This allows us to specify a default font and
* foreground color at top-level.
*/
struct fcft_font *font = fcft_from_name(1, &(const char *){"sans"}, NULL);
pixman_color_t foreground = {0xffff, 0xffff, 0xffff, 0xffff}; /* White */
const struct yml_node *font_node = yml_get_value(bar, "font");
if (font_node != NULL) {
fcft_destroy(font);
font = conf_to_font(font_node);
}
const struct yml_node *foreground_node = yml_get_value(bar, "foreground");
if (foreground_node != NULL)
foreground = conf_to_color(foreground_node);
struct conf_inherit inherited = {
.font = font,
.foreground = foreground,
};
const struct yml_node *left = yml_get_value(bar, "left");
const struct yml_node *center = yml_get_value(bar, "center");
const struct yml_node *right = yml_get_value(bar, "right");
for (size_t i = 0; i < 3; i++) {
const struct yml_node *node = i == 0 ? left : i == 1 ? center : right;
if (node != NULL) {
const size_t count = yml_list_length(node);
struct module **mods = calloc(count, sizeof(*mods));
size_t idx = 0;
for (struct yml_list_iter it = yml_list_iter(node);
it.node != NULL;
yml_list_next(&it), idx++)
{
struct yml_dict_iter m = yml_dict_iter(it.node);
const char *mod_name = yml_value_as_string(m.key);
/*
* These aren't used by the modules, but passed down
* to particles. This allows us to specify a default
* font and foreground for each module, and having it
* applied to all its particles.
*/
const struct yml_node *mod_font = yml_get_value(m.value, "font");
const struct yml_node *mod_foreground = yml_get_value(
m.value, "foreground");
struct conf_inherit mod_inherit = {
.font = mod_font != NULL
? conf_to_font(mod_font) : inherited.font,
.foreground = mod_foreground != NULL
? conf_to_color(mod_foreground) : inherited.foreground,
};
const struct module_iface *iface = plugin_load_module(mod_name);
mods[idx] = iface->from_conf(m.value, mod_inherit);
}
if (i == 0) {
conf.left.mods = mods;
conf.left.count = count;
} else if (i == 1) {
conf.center.mods = mods;
conf.center.count = count;
} else {
conf.right.mods = mods;
conf.right.count = count;
}
}
}
struct bar *ret = bar_new(&conf);
free(conf.left.mods);
free(conf.center.mods);
free(conf.right.mods);
fcft_destroy(font);
return ret;
}
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