#include "./something_font.hpp"

SDL_Rect Bitmap_Font::char_rect(char x)

{

if (32 <= x && x <= 126) {

const SDL_Rect rect = {

((x - 32) % BITMAP_FONT_ROW_SIZE) * BITMAP_FONT_CHAR_WIDTH,

((x - 32) / BITMAP_FONT_ROW_SIZE) * BITMAP_FONT_CHAR_HEIGHT,

BITMAP_FONT_CHAR_WIDTH,

BITMAP_FONT_CHAR_HEIGHT

};

return rect;

} else {

return char_rect('?');

}

}

void Bitmap_Font::render(SDL_Renderer *renderer, Vec2f position, Vec2f size, RGBA color, String_View sv)

{

SDL_Color sdl_color = rgba_to_sdl(color);

sec(SDL_SetTextureColorMod(bitmap, sdl_color.r, sdl_color.g, sdl_color.b));

sec(SDL_SetTextureAlphaMod(bitmap, sdl_color.a));

for (int row = 0; sv.count > 0; ++row) {

auto line = sv.chop_by_delim('\n');

for (int col = 0; (size_t) col < line.count; ++col) {

const SDL_Rect src_rect = char_rect(line.data[col]);

const SDL_Rect dest_rect = {

(int) floorf(position.x + BITMAP_FONT_CHAR_WIDTH * col * size.x),

(int) floorf(position.y + BITMAP_FONT_CHAR_HEIGHT * row * size.y),

(int) floorf(src_rect.w * size.x),

(int) floorf(src_rect.h * size.y)

};

sec(SDL_RenderCopy(renderer, bitmap, &src_rect, &dest_rect));

}

}

}

void Bitmap_Font::render(SDL_Renderer *renderer, Vec2f position, Vec2f size, RGBA color, const char *cstr)

{

render(renderer, position, size, color, cstr_as_string_view(cstr));

}

Vec2f Bitmap_Font::text_size(Vec2f size, String_View sv)

{

size_t lines_count = 0;

size_t longest_line = 0;

while (sv.count > 0) {

String_View line = sv.chop_by_delim('\n');

lines_count += 1;

longest_line = max(longest_line, line.count);

}

return vec2((float) longest_line * BITMAP_FONT_CHAR_WIDTH * size.x,

(float) lines_count * BITMAP_FONT_CHAR_HEIGHT * size.y);

}

Vec2f Bitmap_Font::text_size(Vec2f size, const char *cstr)

{

return text_size(size, cstr_as_string_view(cstr));

}