Sean Barrett
ago%!(EXTRA string=11 years)
parent
1d2770394a
commit
e63b3e0702
3 changed files with 127 additions and 41 deletions
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// I haven't actually tested this yet, this is just to make sure it compiles
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#include <stdlib.h> |
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#include <string.h> // memmove |
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#include <ctype.h> // isspace |
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#define STB_TEXTEDIT_CHARTYPE char |
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#define STB_TEXTEDIT_STRING text_control |
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// get the base type
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#include "stb_textedit.h" |
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// define our editor structure
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typedef struct |
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{ |
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char *string; |
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int stringlen; |
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STB_TexteditState state; |
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} text_control; |
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// define the functions we need
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void layout_func(StbTexteditRow *row, STB_TEXTEDIT_STRING *str, int start_i) |
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{ |
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int remaining_chars = str->stringlen - start_i; |
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row->num_chars = remaining_chars > 20 ? 20 : remaining_chars; // should do real word wrap here
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row->x0 = 0; |
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row->x1 = 20; // need to account for actual size of characters
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row->baseline_y_delta = 1.25; |
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row->ymin = -1; |
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row->ymax = 0; |
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} |
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int delete_chars(STB_TEXTEDIT_STRING *str, int pos, int num) |
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{ |
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memmove(&str->string[pos], &str->string[pos+num], str->stringlen - (pos-num)); |
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str->stringlen -= num; |
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return 1; // always succeeds
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} |
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int insert_chars(STB_TEXTEDIT_STRING *str, int pos, STB_TEXTEDIT_CHARTYPE *newtext, int num) |
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{ |
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str->string = realloc(str, str->stringlen + num); |
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memmove(&str->string[pos+num], &str->string[pos], str->stringlen - pos); |
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memcpy(&str->string[pos], newtext, num); |
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return 1; // always succeeds
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} |
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// define all the #defines needed
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#define KEYDOWN_BIT 0x80000000 |
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#define STB_TEXTEDIT_STRINGLEN(tc) ((tc)->stringlen) |
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#define STB_TEXTEDIT_LAYOUTROW layout_func |
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#define STB_TEXTEDIT_GETWIDTH(tc,n,i) (1) // quick hack for monospaced
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#define STB_TEXTEDIT_KEYTOTEXT(key) (((key) & KEYDOWN_BIT) ? 0 : (key)) |
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#define STB_TEXTEDIT_GETCHAR(tc,i) ((tc)->string[i]) |
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#define STB_TEXTEDIT_NEWLINE '\n' |
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#define STB_TEXTEDIT_IS_SPACE(ch) isspace(ch) |
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#define STB_TEXTEDIT_DELETECHARS delete_chars |
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#define STB_TEXTEDIT_INSERTCHARS insert_chars |
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#define STB_TEXTEDIT_K_SHIFT 0x40000000 |
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#define STB_TEXTEDIT_K_CONTROL 0x20000000 |
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#define STB_TEXTEDIT_K_LEFT (KEYDOWN_BIT | 1) // actually use VK_LEFT, SDLK_LEFT, etc
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#define STB_TEXTEDIT_K_RIGHT (KEYDOWN_BIT | 2) // VK_RIGHT
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#define STB_TEXTEDIT_K_UP (KEYDOWN_BIT | 3) // VK_UP
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#define STB_TEXTEDIT_K_DOWN (KEYDOWN_BIT | 4) // VK_DOWN
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#define STB_TEXTEDIT_K_LINESTART (KEYDOWN_BIT | 5) // VK_HOME
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#define STB_TEXTEDIT_K_LINEEND (KEYDOWN_BIT | 6) // VK_END
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#define STB_TEXTEDIT_K_TEXTSTART (STB_TEXTEDIT_K_LINESTART | STB_TEXTEDIT_K_CONTROL) |
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#define STB_TEXTEDIT_K_TEXTEND (STB_TEXTEDIT_K_LINEEND | STB_TEXTEDIT_K_CONTROL) |
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#define STB_TEXTEDIT_K_DELETE (KEYDOWN_BIT | 7) // VK_DELETE
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#define STB_TEXTEDIT_K_BACKSPACE (KEYDOWN_BIT | 8) // VK_BACKSPACE
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#define STB_TEXTEDIT_K_UNDO (KEYDOWN_BIT | STB_TEXTEDIT_K_CONTROL | 'z') |
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#define STB_TEXTEDIT_K_REDO (KEYDOWN_BIT | STB_TEXTEDIT_K_CONTROL | 'y') |
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#define STB_TEXTEDIT_K_INSERT (KEYDOWN_BIT | 9) // VK_INSERT
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#define STB_TEXTEDIT_K_WORDLEFT (STB_TEXTEDIT_K_LEFT | STB_TEXTEDIT_K_CONTROL) |
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#define STB_TEXTEDIT_K_WORDRIGHT (STB_TEXTEDIT_K_RIGHT | STB_TEXTEDIT_K_CONTROL) |
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#define STB_TEXTEDIT_K_PGUP (KEYDOWN_BIT | 10) // VK_PGUP -- not implemented
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#define STB_TEXTEDIT_K_PGDOWN (KEYDOWN_BIT | 11) // VK_PGDOWN -- not implemented
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#define STB_TEXTEDIT_IMPLEMENTATION |
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#include "stb_textedit.h" |
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