1// width and height are per character
2BITMAP* magnifyText(char* message, int width, int height, int r, int g, int b)
3{
4   // create bitmap to stretch_blit
5   // default font is 8x8 I believe
6   BITMAP* character = create_bitmap(8,8);
7   clear_to_color(character, makecol(255,255,255));
8 
9   // get size of message
10   int size = 0;
11   for (; message[size] != '\0'; size++);
12 
13   // create bitmap to return
14   BITMAP* text = create_bitmap(width*size, height);
15   clear_to_color(text, makecol(255,255,255));
16 
17   // stretch the message
18   for (int i = 0; i < size; i++)
19   {
20      textprintf_ex(character,font,0,0,makecol(r,g,b),-1,"%c",message<i>);
21      stretch_blit(character,text,0,0,8,8,i*width,0,width,height);
22      clear_to_color(character, makecol(255,255,255));
23   }
24   return text;
25}
26 
27// then somewhere, just...
28masked_blit(magnifyText("this is 10x10 pixels",10,10,255,255,255), ...);

This is untested code, but it looks to me like it would work. There may be some modifications to make it better...

--
I thought I was wrong once, but I was mistaken.

Recorder

Member #6,860

February 2006

Thanks. I was looking at the api and didn't any obvious 'increment here to increase font' values.

I'll try both suggestions

Thomas Fjellstrom

Member #476

June 2000

   // get size of message
   int size = 0;
   for (; message[size] != '\0'; size++);

How bout this instead:
int size = strlen(message);

--
Thomas Fjellstrom - [website] - [email] - [Allegro Wiki] - [Allegro TODO]
"If you can't think of a better solution, don't try to make a better solution." -- weapon_S
"The less evidence we have for what we believe is certain, the more violently we defend beliefs against those who don't agree" -- https://twitter.com/neiltyson/status/592870205409353730

Jeff Bernard

Member #6,698

December 2005

Thomas Fjellstrom said:

// get size of message

int size = 0;
   for (; message[size] != '\0'; size++);

How bout this instead:
int size = strlen(message);

strlen() requires you to #include <string>. With my method, you don't need to include strings. So, if you're already using string objects, I suppose it would be better to use strlen(), however, if you don't have any other string objects I think my method would be better because then you don't have to include and entire file just for one function.

--
I thought I was wrong once, but I was mistaken.

Thomas Fjellstrom

Member #476

June 2000

actually, it requires you to include string.h, or cstring, depending on if you use C, or C++ (in that order) also, C strings are not objects, they are plain arrays of char. And its always best to use the provided standard functions.

miran

Member #2,407

June 2002

And what's wrong with Allegro's ustrlen()?

--
sig used to be here