85 lines
3.4 KiB
C
85 lines
3.4 KiB
C
// I haven't actually tested this yet, this is just to make sure it compiles
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h> // memmove
|
|
#include <ctype.h> // isspace
|
|
|
|
#define STB_TEXTEDIT_CHARTYPE char
|
|
#define STB_TEXTEDIT_STRING text_control
|
|
|
|
// get the base type
|
|
#include "stb_textedit.h"
|
|
|
|
// define our editor structure
|
|
typedef struct
|
|
{
|
|
char *string;
|
|
int stringlen;
|
|
STB_TexteditState state;
|
|
} text_control;
|
|
|
|
// define the functions we need
|
|
void layout_func(StbTexteditRow *row, STB_TEXTEDIT_STRING *str, int start_i)
|
|
{
|
|
int remaining_chars = str->stringlen - start_i;
|
|
row->num_chars = remaining_chars > 20 ? 20 : remaining_chars; // should do real word wrap here
|
|
row->x0 = 0;
|
|
row->x1 = 20; // need to account for actual size of characters
|
|
row->baseline_y_delta = 1.25;
|
|
row->ymin = -1;
|
|
row->ymax = 0;
|
|
}
|
|
|
|
int delete_chars(STB_TEXTEDIT_STRING *str, int pos, int num)
|
|
{
|
|
memmove(&str->string[pos], &str->string[pos+num], str->stringlen - (pos+num));
|
|
str->stringlen -= num;
|
|
return 1; // always succeeds
|
|
}
|
|
|
|
int insert_chars(STB_TEXTEDIT_STRING *str, int pos, STB_TEXTEDIT_CHARTYPE *newtext, int num)
|
|
{
|
|
str->string = realloc(str->string, str->stringlen + num);
|
|
memmove(&str->string[pos+num], &str->string[pos], str->stringlen - pos);
|
|
memcpy(&str->string[pos], newtext, num);
|
|
str->stringlen += num;
|
|
return 1; // always succeeds
|
|
}
|
|
|
|
// define all the #defines needed
|
|
|
|
#define KEYDOWN_BIT 0x80000000
|
|
|
|
#define STB_TEXTEDIT_STRINGLEN(tc) ((tc)->stringlen)
|
|
#define STB_TEXTEDIT_LAYOUTROW layout_func
|
|
#define STB_TEXTEDIT_GETWIDTH(tc,n,i) (1) // quick hack for monospaced
|
|
#define STB_TEXTEDIT_KEYTOTEXT(key) (((key) & KEYDOWN_BIT) ? 0 : (key))
|
|
#define STB_TEXTEDIT_GETCHAR(tc,i) ((tc)->string[i])
|
|
#define STB_TEXTEDIT_NEWLINE '\n'
|
|
#define STB_TEXTEDIT_IS_SPACE(ch) isspace(ch)
|
|
#define STB_TEXTEDIT_DELETECHARS delete_chars
|
|
#define STB_TEXTEDIT_INSERTCHARS insert_chars
|
|
|
|
#define STB_TEXTEDIT_K_SHIFT 0x40000000
|
|
#define STB_TEXTEDIT_K_CONTROL 0x20000000
|
|
#define STB_TEXTEDIT_K_LEFT (KEYDOWN_BIT | 1) // actually use VK_LEFT, SDLK_LEFT, etc
|
|
#define STB_TEXTEDIT_K_RIGHT (KEYDOWN_BIT | 2) // VK_RIGHT
|
|
#define STB_TEXTEDIT_K_UP (KEYDOWN_BIT | 3) // VK_UP
|
|
#define STB_TEXTEDIT_K_DOWN (KEYDOWN_BIT | 4) // VK_DOWN
|
|
#define STB_TEXTEDIT_K_LINESTART (KEYDOWN_BIT | 5) // VK_HOME
|
|
#define STB_TEXTEDIT_K_LINEEND (KEYDOWN_BIT | 6) // VK_END
|
|
#define STB_TEXTEDIT_K_TEXTSTART (STB_TEXTEDIT_K_LINESTART | STB_TEXTEDIT_K_CONTROL)
|
|
#define STB_TEXTEDIT_K_TEXTEND (STB_TEXTEDIT_K_LINEEND | STB_TEXTEDIT_K_CONTROL)
|
|
#define STB_TEXTEDIT_K_DELETE (KEYDOWN_BIT | 7) // VK_DELETE
|
|
#define STB_TEXTEDIT_K_BACKSPACE (KEYDOWN_BIT | 8) // VK_BACKSPACE
|
|
#define STB_TEXTEDIT_K_UNDO (KEYDOWN_BIT | STB_TEXTEDIT_K_CONTROL | 'z')
|
|
#define STB_TEXTEDIT_K_REDO (KEYDOWN_BIT | STB_TEXTEDIT_K_CONTROL | 'y')
|
|
#define STB_TEXTEDIT_K_INSERT (KEYDOWN_BIT | 9) // VK_INSERT
|
|
#define STB_TEXTEDIT_K_WORDLEFT (STB_TEXTEDIT_K_LEFT | STB_TEXTEDIT_K_CONTROL)
|
|
#define STB_TEXTEDIT_K_WORDRIGHT (STB_TEXTEDIT_K_RIGHT | STB_TEXTEDIT_K_CONTROL)
|
|
#define STB_TEXTEDIT_K_PGUP (KEYDOWN_BIT | 10) // VK_PGUP -- not implemented
|
|
#define STB_TEXTEDIT_K_PGDOWN (KEYDOWN_BIT | 11) // VK_PGDOWN -- not implemented
|
|
|
|
#define STB_TEXTEDIT_IMPLEMENTATION
|
|
#include "stb_textedit.h"
|