Module: graphics.font.bitmap

Source: ./graphics/font/bitmap.reef

Overview

graphics/font/bitmap.reef - Bitmap font implementation Part of reef-stdlib graphics module

Bitmap fonts use a grid of pixels to represent each glyph. This module includes built-in 8x8 and 8x16 fonts based on classic PC/VGA fonts, suitable for console and terminal applications.

Types

BitmapFont

Fields:

Name	Type
`family_name`	`string`
`style`	`font.FontStyle`
`glyph_data`	`[int]`
`glyph_width`	`int`
`glyph_height`	`int`
`bytes_per_glyph`	`int`
`first_char`	`int`
`char_count`	`int`

Functions

`fn get_bit(val: int, bit_pos: int): int`

Get the value of bit at position (0-7) from an int (treating it as a byte) Returns 1 if bit is set, 0 otherwise

`fn bit_mask(bit_pos: int): int`

Power of 2 for bit position

`fn create_bitmap_font(glyph_data: [int], glyph_width: int, glyph_height: int, first_char: int, char_count: int): BitmapFont`

`fn bitmap_font_family(f: BitmapFont): string`

`fn bitmap_font_style(f: BitmapFont): font.FontStyle`

`fn bitmap_font_metrics(f: BitmapFont): font.FontMetrics`

`fn bitmap_font_glyph_width(f: BitmapFont): int`

`fn bitmap_font_glyph_height(f: BitmapFont): int`

`fn bitmap_font_has_glyph(f: BitmapFont, codepoint: int): bool`

`fn bitmap_font_glyph_index(f: BitmapFont, codepoint: int): int`

`fn bitmap_font_glyph_advance(f: BitmapFont, glyph_index: int, size: float): float`

`fn bitmap_font_glyph_bounds(f: BitmapFont, glyph_index: int, size: float): core.Rect`

`fn bitmap_font_glyph_data(f: BitmapFont, glyph_index: int): [int]`

`fn bitmap_font_render_glyph(f: BitmapFont, glyph_index: int, size: float): image.Image`

`fn builtin_font_8x8(): BitmapFont`

Classic 8x8 pixel font (CP437 style) Characters 0-127 (ASCII), 8 bytes per character

`fn builtin_font_8x16(): BitmapFont`

Classic 8x16 pixel font (VGA style) Characters 0-127 (ASCII), 16 bytes per character

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