text.h

#pragma once
#include <pebble.h>
#include "../types.h"
#include "../macros.h"
#include "../context.h"
#include "../fonts/fonts.h"

/*-----------------------------------------------------------------------------.
|                                                                              |
|                                    Text                                      |
|                                                                              |
`-----------------------------------------------------------------------------*/

typedef enum n_GTextOverflowMode {
    n_GTextOverflowModeWordWrap = 0,
        // "Normal" filling mode. Respects \n, cuts off at end.
    n_GTextOverflowModeTrailingEllipsis,
        // Like WordWrap, but adds a trailing ellipsis at the last renderable
        // position if there is additional text.
    n_GTextOverflowModeFill,
        // Renders \n as a space. Has a trailing ellipsis. Is buggy.
} n_GTextOverflowMode;

typedef enum n_GTextAlignment {
    n_GTextAlignmentLeft = 0,
    n_GTextAlignmentCenter,
    n_GTextAlignmentRight,
} n_GTextAlignment;

typedef struct n_GTextAttributes {
    bool use_screen_text_flow;
    uint8_t inset;
    bool use_paging;
    n_GRect pageable_area;
    n_GPoint text_origin;
} __attribute__((__packed__)) n_GTextAttributes;

n_GTextAttributes * n_graphics_text_attributes_create(void);

void n_graphics_text_attributes_destroy(n_GTextAttributes * text_attributes);

void n_graphics_text_attributes_enable_screen_text_flow(
    n_GTextAttributes * text_attributes, uint8_t inset);

void n_graphics_text_attributes_restore_default_paging(
    n_GTextAttributes * text_attributes);

void n_graphics_text_attributes_enable_paging(
    n_GTextAttributes * text_attributes, n_GPoint moduloed_origin, n_GRect pageable_area);

void n_graphics_draw_text(
    n_GContext * ctx, const char * text, n_GFont const font, const n_GRect box,
    const n_GTextOverflowMode overflow_mode, const n_GTextAlignment alignment,
    n_GTextAttributes * text_attributes);

n_GSize n_graphics_text_layout_get_content_size_with_attributes(
    const char * text, n_GFont const font, const n_GRect box,
    const n_GTextOverflowMode overflow_mode, const n_GTextAlignment alignment,
    n_GTextAttributes * text_attributes);

#define n_graphics_text_layout_get_content_size(a, b, c, d)\
        (n_graphics_text_layout_get_content_size_with_attributes((a), (b), (c), (d), NULL));