根据配置为每个屏幕初始化 tags 属性

src/config.c

@@ -3,7 +3,36 @@
 #include <stdint.h>
 #include <stdio.h>
 
-/* 壁纸列表，支持通配符和 shell 环境变量拼接，最后以 NULL 结尾 */
 const char *wallpager_list[] = {NULL};
-/* 壁纸切换间隔（单位：秒），0 表示不切换 */
 const uint32_t wallpaper_interval = 0;
+
+const char *const *const *const monitor_tags[] = {
+  (const char *const *const[]){
+    (const char *const[]){
+      "1 ",
+      "2  ",
+      "3  ",
+      "4  ",
+      "5  ",
+      "6  ",
+      NULL,
+    },
+    NULL,
+  },
+  (const char *const *const[]){
+    (const char *const[]){"1  ", "2  ", "3  ", NULL},
+    (const char *const[]){
+      "1  ",
+      "2  ",
+      "3  ",
+      "4  ",
+      "5 ",
+      NULL,
+    },
+    NULL,
+  },
+  NULL,
+};
+const char *const default_monitor_tags[] = {
+  "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL,
+};

src/include/config.h

@@ -2,5 +2,27 @@
 
 #include <stdint.h>
 
+/* 壁纸列表，支持通配符和 shell 环境变量拼接，最后以 NULL 结尾 */
 extern const char *wallpager_list[];
+/* 壁纸切换间隔（单位：秒），0 表示不切换 */
 extern const uint32_t wallpaper_interval;
+
+/**
+ * @brief 屏幕 tags 设置
+ * @description 每个屏幕的 tags 配置为字符串数组，以 NULL 结束，如
+ * {"1", "2", "3", "4", "5", "6", NULL}
+ *
+ * 每一项配置里面的数组个数表示对应的屏幕个数，并最后以 NULL 结束，
+ *
+ * 如一个屏幕应该配置为 {{"1", "2", "3", "4", NULL}, NULL}，
+ * 两个屏幕应该配置为 {{"1", "2", "3", NULL}, {"1", "2", NULL}, NULL}，以此类推
+ */
+extern const char *const *const *const monitor_tags[];
+/**
+ * @brief 默认屏幕 tags 设置
+ * @description 若屏幕个数与 monitor_tags 中设置的所有配置项都不符，
+ * 则所有屏幕的 tags 都使用这个默认配置
+ *
+ * 格式为字符串数组，以 NULL 标志结束，如 {"1", "2", "3", NULL}
+ */
+extern const char *const default_monitor_tags[];

src/include/types.h

@@ -11,8 +11,6 @@ typedef struct layout_t {
   void (*arrange)(monitor_t *monitor);
 } layout_t;
 
-#define TAG_SYMBOL_LENGTH 32
-
 /* 避免引入 xcb 头文件 */
 typedef uint32_t xcb_window_t;
 
@@ -22,8 +20,7 @@ struct monitor_t {
   uint32_t monitor_width, monitor_height, window_width, window_height;
 
   uint32_t selected_tag;
-  uint32_t tag_count;
-  char (*tags)[TAG_SYMBOL_LENGTH];
+  char **tags;
 
   /* 为了避免引入 cairo 相关头文件，这里用 void *
    * 指针代替实际的指针类型，使用时强转为相应指针类型使用即可 */

src/main.c

@@ -15,6 +15,7 @@
 #include "xcb.h"
 
 static void init_monitors(void);
+static char **get_monitor_tags(uint32_t monitor_count, uint32_t monitor_index);
 static void init_wallpaper(void);
 static gboolean update_wallpaper(gpointer user_data);
 static void set_wallpaper_by_index(uint32_t index);
@@ -31,10 +32,18 @@ static GMainLoop *loop = NULL;
 
 /* 调试函数，开发完成后删除 */
 static void print_monitor_list_info(monitor_t *monitor_list) {
+  printf("========================= monitor info =========================\n");
   for (monitor_t *m = monitor_list; m; m = m->next) {
-    printf("mon[%u]: x: %d, y: %d, width: %u, height: %u\n", m->index,
-           m->monitor_x, m->monitor_y, m->monitor_width, m->monitor_height);
+    printf("========== mon[%u]:\n", m->index);
+    printf("x: %d, y: %d, width: %u, height: %u\n", m->monitor_x, m->monitor_y,
+           m->monitor_width, m->monitor_height);
+    printf("mon[%u] tags: ", m->index);
+    for (int i = 0; m->tags[i]; i++) {
+      printf("%s%s", i > 0 ? ", " : "", m->tags[i]);
+    }
+    printf("\n");
   }
+  printf("======================= monitor info end =======================\n");
 }
 static void print_wallpaper_config(wallpaper_config_t *config) {
   if (!config) {
@@ -83,6 +92,39 @@ void init_monitors(void) {
     free(mr);
     mr = next_mr;
   }
+  for (monitor_t *m = monitors; m; m = m->next) {
+    m->tags = get_monitor_tags(i, m->index);
+  }
+}
+
+char **get_monitor_tags(uint32_t monitor_count, uint32_t monitor_index) {
+  int config_count = 0;
+  while (monitor_tags[config_count]) config_count++;
+
+  GStrvBuilder *builder = g_strv_builder_new();
+  const char *const *tags = NULL;
+
+  /* 倒序遍历，达到后面的配置覆盖前面相同配置的效果 */
+  for (int i = config_count - 1; i >= 0; i--) {
+    const char *const *const *config = monitor_tags[i];
+
+    uint32_t monitor_count_in_tags_config = 0;
+    while (config[monitor_count_in_tags_config]) monitor_count_in_tags_config++;
+
+    if (monitor_count_in_tags_config != monitor_count) continue;
+
+    tags = config[monitor_index];
+    break;
+    const char *const *const tags = config[monitor_index];
+    for (int j = 0; tags[j]; j++) g_strv_builder_add(builder, tags[j]);
+
+    return g_strv_builder_unref_to_strv(builder);
+  }
+
+  if (tags == NULL) tags = default_monitor_tags;
+
+  for (int i = 0; tags[i]; i++) g_strv_builder_add(builder, tags[i]);
+  return g_strv_builder_unref_to_strv(builder);
 }
 
 void init_wallpaper(void) {
@@ -199,9 +241,10 @@ void cleanup(void) {
       free(c);
       c = tc;
     }
-    monitor_t *tm = m->next;
+    monitor_t *next_monitor = m->next;
+    g_strfreev(m->tags);
     free(m);
-    m = tm;
+    m = next_monitor;
   }
   monitors = NULL;
 }