fix some stuff that used RAD types and so were totally broken, add a compile test/sample

tests/stb.dsp

@@ -66,7 +66,7 @@ LINK32=link.exe
 # PROP Ignore_Export_Lib 0
 # PROP Target_Dir ""
 # ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
-# ADD CPP /nologo /MTd /W3 /GX /Zd /Od /I "..\.." /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /D "MAIN_TEST" /FR /FD /GZ /c
+# ADD CPP /nologo /MTd /W3 /GX /Zd /Od /I ".." /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /D "MAIN_TEST" /FR /FD /GZ /c
 # SUBTRACT CPP /YX
 # ADD BASE RSC /l 0x409 /d "_DEBUG"
 # ADD RSC /l 0x409 /d "_DEBUG"
@@ -104,5 +104,9 @@ SOURCE=..\stb_vorbis.c
 
 SOURCE=.\test_truetype.c
 # End Source File
+# Begin Source File
+
+SOURCE=.\textedit_sample.c
+# End Source File
 # End Target
 # End Project

tests/textedit_sample.c

@@ -0,0 +1,82 @@
+// 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, str->stringlen + num);
+   memmove(&str->string[pos+num], &str->string[pos], str->stringlen - pos);
+   memcpy(&str->string[pos], newtext, 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"