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#include <math.h>
#include "util.h"
int wrap(int i, int max) {
return ((i % max) + max) % max;
}
int numlen(int n) {
if (n == 0) {
return n;
}
return log10(n) + 1;
}
static struct modifier_key {
char *name;
uint32_t mod;
} modifiers[] = {
{ XKB_MOD_NAME_SHIFT, WLC_BIT_MOD_SHIFT },
{ XKB_MOD_NAME_CAPS, WLC_BIT_MOD_CAPS },
{ XKB_MOD_NAME_CTRL, WLC_BIT_MOD_CTRL },
{ "Ctrl", WLC_BIT_MOD_CTRL },
{ XKB_MOD_NAME_ALT, WLC_BIT_MOD_ALT },
{ "Alt", WLC_BIT_MOD_ALT },
{ XKB_MOD_NAME_NUM, WLC_BIT_MOD_MOD2 },
{ "Mod3", WLC_BIT_MOD_MOD3 },
{ XKB_MOD_NAME_LOGO, WLC_BIT_MOD_LOGO },
{ "Mod5", WLC_BIT_MOD_MOD5 },
};
uint32_t get_modifier_mask_by_name(const char *name) {
int i;
for (i = 0; i < (int)(sizeof(modifiers) / sizeof(struct modifier_key)); ++i) {
if (strcasecmp(modifiers[i].name, name) == 0) {
return modifiers[i].mod;
}
}
return 0;
}
const char *get_modifier_name_by_mask(uint32_t modifier) {
int i;
for (i = 0; i < (int)(sizeof(modifiers) / sizeof(struct modifier_key)); ++i) {
if (modifiers[i].mod == modifier) {
return modifiers[i].name;
}
}
return NULL;
}
int get_modifier_names(const char **names, uint32_t modifier_masks) {
int length = 0;
int i;
for (i = 0; i < (int)(sizeof(modifiers) / sizeof(struct modifier_key)); ++i) {
if ((modifier_masks & modifiers[i].mod) != 0) {
names[length] = modifiers[i].name;
++length;
modifier_masks ^= modifiers[i].mod;
}
}
return length;
}
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