X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=src%2Fkeybindings.c;h=709813c89a98a6d98832a37085acaf013c4ff991;hb=e6ed641e5feea84437d154b29ea8982cf9dfb37d;hp=3809416489b4037857b5bb3a5de6062599772f3e;hpb=e11aa749989942b66dfc4fd7ccb72c2c8e767332;p=plomrogue

diff --git a/src/keybindings.c b/src/keybindings.c
index 3809416..709813c 100644
--- a/src/keybindings.c
+++ b/src/keybindings.c
@@ -1,193 +1,244 @@
 /* keybindings.c */
 
-
-
 #include "keybindings.h"
-#include <stdlib.h>  /* for malloc(), free(), atoi() */
-#include <stdint.h>  /* for uint16_t */
-#include <ncurses.h> /* for keycode defines in get_keyname() */
-#include <string.h>  /* for strchr(), strlen(), strcmp(), memcpy()*/
-#include "windows.h" /* for draw_all_wins() and WinMeta struct */
-#include "misc.h"    /* for texfile_sizes() */
-#include "main.h"    /* for World struct */
+#include <stdio.h>     /* for FILE typedef*/
+#include <stdlib.h>    /* for free(), atoi() */
+#include <stdint.h>    /* for uint16_t */
+#include <ncurses.h>   /* for keycode defines in get_name_to_keycode() */
+#include <string.h>    /* for strchr(), strlen(), strcmp(), memcpy()*/
+#include "windows.h"   /* for draw_all_wins() and WinMeta struct */
+#include "readwrite.h" /* for texfile_sizes(), try_fopen(), try_fclose()
+                        * try_fclose_unlink_rename(), try_fwrite()
+                        */
+#include "main.h"      /* for world global */
+#include "rexit.h"     /* for err_exit() */
+#include "misc.h"      /* for try_malloc() */
 
 
 
-extern void init_keybindings(struct World * world)
-{
-    FILE * file = fopen("keybindings", "r");
-    uint16_t lines, linemax;
-    textfile_sizes(file, &linemax, &lines);
-    struct KeyBinding * keybindings = malloc(lines * sizeof(struct KeyBinding));
-    char * command = malloc(linemax);
-    uint16_t commcount = 0;
-    char * cmdptr;
-    while (fgets(command, linemax, file))
-    {
-        keybindings[commcount].key = atoi(command);
-        cmdptr = strchr(command, ' ') + 1;
-        keybindings[commcount].name = malloc(strlen(cmdptr));
-        memcpy(keybindings[commcount].name, cmdptr, strlen(cmdptr) - 1);
-        keybindings[commcount].name[strlen(cmdptr) - 1] = '\0';
-        commcount++;
-    }
-    free(command);
-    fclose(file);
-    struct KeysWinData * keyswindata = malloc(sizeof(struct KeysWinData));
-    keyswindata->max = lines - 1;
-    keyswindata->select = 0;
-    keyswindata->edit = 0;
-    world->keybindings = keybindings;
-    world->keyswindata = keyswindata;
-}
+/* If "keycode_given" equals "keycode_match", copy "keyname_match" to "keyname"
+ * and return 1; otherwise return 0.
+ */
+static uint8_t try_keycode(uint16_t keycode_given, char * keyname,
+                           uint16_t keycode_match, char * keyname_match);
 
 
 
-extern void save_keybindings(struct World * world)
+static uint8_t try_keycode(uint16_t keycode_given, char * keyname,
+                           uint16_t keycode_match, char * keyname_match)
 {
-    struct KeysWinData * keyswindata = (struct KeysWinData *)
-                                       world->keyswindata;
-    struct KeyBinding * keybindings = world->keybindings;
-    FILE * file = fopen("keybindings", "w");
-    uint16_t linemax = 0;
-    uint16_t i;
-    for (i = 0; i <= keyswindata->max; i++)
-    {
-        if (strlen(keybindings[i].name) > linemax)
-        {
-            linemax = strlen(keybindings[i].name);
-        }
-    }
-    linemax = linemax + 6;         /* + 6 = + 3 digits + whitespace + \n + \0 */
-    char * line = malloc(linemax);
-    for (i = 0; i <= keyswindata->max; i++)
+    if (keycode_given == keycode_match)
     {
-        snprintf(line, linemax,
-                 "%d %s\n", keybindings[i].key, keybindings[i].name);
-        fwrite(line, sizeof(char), strlen(line), file);
+        sprintf(keyname, keyname_match);
+        return 1;
     }
-    free(line);
-    fclose(file);
+    return 0;
 }
 
 
 
-extern uint16_t get_action_key(struct KeyBinding * keybindings, char * name)
+extern uint16_t get_keycode_to_action(struct KeyBinding * kb_p, char * name)
 {
-    uint16_t i = 0;
-    while (strcmp(keybindings[i].name, name) )
+    while (0 != kb_p)
     {
-        i++;
+        if (0 == strcmp(kb_p->name, name))
+        {
+            return kb_p->key;
+        }
+        kb_p = kb_p->next;
     }
-    return keybindings[i].key;
+    return 0;
 }
 
 
 
-extern char * get_keyname(uint16_t keycode)
+extern char * get_name_to_keycode(uint16_t keycode)
 {
-    char * keyname;
-    keyname = malloc(15);
+    char * f_name = "get_name_to_keycode()";
+    char * keyname = try_malloc(15, f_name);
     if (32 < keycode && keycode < 127)
     {
         sprintf(keyname, "%c", keycode);
     }
-    else if (keycode == 9)              /* TODO: Find a way more elegant than */
-    {                                   /*       hardcoding all of this?      */
-        sprintf(keyname, "TAB");
-    }
-    else if (keycode == 10)
-    {
-        sprintf(keyname, "RETURN");
-    }
-    else if (keycode == 27)
-    {
-        sprintf(keyname, "ESCAPE");
-    }
-    else if (keycode == 32)
-    {
-        sprintf(keyname, "SPACE");
-    }
-    else if (keycode == KEY_UP)
-    {
-        sprintf(keyname, "UP");
-    }
-    else if (keycode == KEY_DOWN)
-    {
-        sprintf(keyname, "DOWN");
-    }
-    else if (keycode == KEY_LEFT)
-    {
-        sprintf(keyname, "LEFT");
-    }
-    else if (keycode == KEY_RIGHT)
+    else if (keycode >= KEY_F0 && keycode <= KEY_F(63))
     {
-        sprintf(keyname, "RIGHT");
+        uint16_t f = keycode - KEY_F0;
+        sprintf(keyname, "F%d", f);
     }
-    else if (keycode == KEY_HOME)
-    {
-        sprintf(keyname, "HOME");
+    else if (   try_keycode(keycode, keyname, 9, "TAB")
+             || try_keycode(keycode, keyname, 10, "RETURN")
+             || try_keycode(keycode, keyname, 27, "ESCAPE")
+             || try_keycode(keycode, keyname, 32, "SPACE")
+             || try_keycode(keycode, keyname, KEY_UP, "UP")
+             || try_keycode(keycode, keyname, KEY_DOWN, "DOWN")
+             || try_keycode(keycode, keyname, KEY_LEFT, "LEFT")
+             || try_keycode(keycode, keyname, KEY_RIGHT, "RIGHT")
+             || try_keycode(keycode, keyname, KEY_HOME, "HOME")
+             || try_keycode(keycode, keyname, KEY_BACKSPACE, "BACKSPACE")
+             || try_keycode(keycode, keyname, KEY_DC, "DELETE")
+             || try_keycode(keycode, keyname, KEY_IC, "INSERT")
+             || try_keycode(keycode, keyname, KEY_NPAGE, "NEXT PAGE")
+             || try_keycode(keycode, keyname, KEY_PPAGE, "PREV PAGE")
+             || try_keycode(keycode, keyname, KEY_END, "END"))
+    {
+        ;
     }
-    else if (keycode == KEY_BACKSPACE)
+    else
     {
-        sprintf(keyname, "BACKSPACE");
+        sprintf(keyname, "(unknown)");
     }
-    else if (keycode >= KEY_F0 && keycode <= KEY_F(63))
+    return keyname;
+}
+
+
+
+extern uint16_t get_n_of_keybs(struct KeyBinding * kb_p)
+{
+    uint16_t i = 0;
+    while (1)
     {
-        uint16_t f = keycode - KEY_F0;
-        sprintf(keyname, "F%d", f);
+        if (0 == kb_p)
+        {
+            break;
+        }
+        i++;
+        kb_p = kb_p->next;
     }
-    else if (keycode == KEY_DC)
+    return i;
+}
+
+
+
+extern struct KeyBinding * get_keyb_of_n(struct KeyBinding * kb_p, uint16_t n)
+{
+    uint16_t i = 0;
+    while (1)
     {
-        sprintf(keyname, "DELETE");
+        if (n == i)
+        {
+            break;
+        }
+        i++;
+        kb_p = kb_p->next;
     }
-    else if (keycode == KEY_IC)
+    return kb_p;
+}
+
+
+
+extern void init_keybindings(char * path, struct KeyBiData * kbd)
+{
+    char * f_name = "init_keybindings()";
+
+    FILE * file = try_fopen(path, "r", f_name);
+    uint16_t lines, linemax;
+    char * err = "textfile_sizes() in init_keybindings() returns error.";
+    exit_err(textfile_sizes(file, &linemax, &lines), err);
+
+    char command[linemax + 1];
+    char * cmdptr;
+    struct KeyBinding ** loc_last_ptr = &kbd->kbs;
+    * loc_last_ptr = 0;
+    while (fgets(command, linemax + 1, file))
     {
-        sprintf(keyname, "INSERT");
+        if ('\n' == command[0] || 0 == command[0])
+        {
+            break;
+        }
+        * loc_last_ptr = try_malloc(sizeof(struct KeyBinding), f_name);
+        struct KeyBinding * kb_p = * loc_last_ptr;
+        kb_p->next = 0;
+        kb_p->key = atoi(command);
+        cmdptr = strchr(command, ' ') + 1;
+        kb_p->name = try_malloc(strlen(cmdptr), f_name);
+        memcpy(kb_p->name, cmdptr, strlen(cmdptr) - 1);
+        kb_p->name[strlen(cmdptr) - 1] = '\0';
+        loc_last_ptr = & kb_p->next;
     }
-    else if (keycode == KEY_NPAGE)
+
+    try_fclose(file, f_name);
+
+    kbd->edit = 0;
+    kbd->select = 0;
+}
+
+
+
+extern void save_keybindings(char * path, struct KeyBiData * kbd)
+{
+    char * f_name = "save_keybindings()";
+
+    char path_tmp[strlen(path) + 4 + 1];
+    sprintf(path_tmp, "%s_tmp", path);
+    FILE * file = try_fopen(path_tmp, "w", f_name);
+
+    uint16_t linemax = 0;
+    struct KeyBinding * kb_p = kbd->kbs;
+    while (0 != kb_p)
     {
-        sprintf(keyname, "NEXT PAGE");
+        if (strlen(kb_p->name) > linemax)
+        {
+            linemax = strlen(kb_p->name);
+        }
+        kb_p = kb_p->next;
     }
-    else if (keycode == KEY_PPAGE)
+    linemax = linemax + 6;         /* + 6 = + 3 digits + whitespace + \n + \0 */
+
+    char line[linemax];
+    kb_p = kbd->kbs;
+    while (0 != kb_p)
     {
-        sprintf(keyname, "PREV PAGE");
+        snprintf(line, linemax, "%d %s\n", kb_p->key, kb_p->name);
+        try_fwrite(line, sizeof(char), strlen(line), file, f_name);
+        kb_p = kb_p->next;
     }
-    else if (keycode == KEY_END)
+
+    try_fclose_unlink_rename(file, path_tmp, path, f_name);
+}
+
+
+
+extern void free_keybindings(struct KeyBinding * kb_start)
+{
+    if (0 == kb_start)
     {
-        sprintf(keyname, "END");
+        return;
     }
-    else
+    struct KeyBinding * kb_p = kb_start->next;
+    if (0 != kb_p)
     {
-        sprintf(keyname, "(unknown)");
+        free_keybindings(kb_p);
     }
-    return keyname;
+    free(kb_start->name);
+    free(kb_start);
 }
 
 
 
-extern void keyswin_mod_key(struct World * world, struct WinMeta * win_meta)
+extern void mod_selected_keyb(struct KeyBiData * kbd)
 {
-    world->keyswindata->edit = 1;
-    draw_all_wins (win_meta);
+    kbd->edit = 1;
+    char * err = "Trouble with draw_all_wins() in mod_selected_keyb().";
+    exit_err(draw_all_wins(world.wmeta), err);
     int key = getch();
     if (key < 1000)
     {
-        world->keybindings[world->keyswindata->select].key = key;
+        struct KeyBinding * kb_p = get_keyb_of_n(kbd->kbs, kbd->select);
+        kb_p->key = key;
     }
-    world->keyswindata->edit = 0;
+    kbd->edit = 0;
 }
 
 
 
-extern void keyswin_move_selection(struct World * world, char dir)
+extern void move_keyb_mod_selection(struct KeyBiData * kbd, char dir)
 {
-    if      ('u' == dir && world->keyswindata->select > 0)
+    if      ('u' == dir && kbd->select > 0)
     {
-        world->keyswindata->select--;
+        kbd->select--;
     }
-    else if ('d' == dir && world->keyswindata->select < world->keyswindata->max)
+    else if ('d' == dir && kbd->select < get_n_of_keybs(kbd->kbs) - 1)
     {
-        world->keyswindata->select++;
+        kbd->select++;
     }
 }