85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
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/* vim: ts=4 sw=4 noexpandtab
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*
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* This file is part of ToaruOS and is released under the terms
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* of the NCSA / University of Illinois License - see LICENSE.md
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* Copyright (C) 2018 K. Lange
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*
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* Port of the original ToaruOS Python text_region library to C.
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*
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* Allows for the display of rich text with multiple varied formats,
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* as well as carat positioning, reflow, links, images, and so on.
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*/
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#include <stdio.h>
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#include <toaru/textregion.h>
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#include <toaru/sdf.h>
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int tr_font_get_width(struct TR_Font * font, char * string) {
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return draw_sdf_string_width(string, font->size, font->typeface);
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}
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int tr_font_write(struct TR_Font * font, gfx_context_t * ctx, int x, int y, char * string) {
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return draw_sdf_string(ctx, x, y, string, font->size, font->color, font->typeface);
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}
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void tr_textunit_set_tag_group(struct TR_TextUnit * self, list_t * tag_group) {
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if (!self->tag_group) {
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self->tag_group = tag_group;
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list_insert(tag_group, self);
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} else {
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/* Already in a tag group, this is wrong */
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}
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}
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void tr_textunit_set_font(struct TR_TextUnit * self, struct TR_Font * font) {
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self->font = font;
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self->width = tr_font_get_width(font, self->string);
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}
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void tr_textunit_set_extra(struct TR_TextUnit * self, char * key, void * data) {
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if (!self->extra) {
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self->extra = hashmap_create(10);
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}
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hashmap_set(self->extra, key, data);
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}
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void tr_textregion_set_alignment(struct TR_TextRegion * self, int align) {
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self->align = align;
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}
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void tr_textregion_set_valignment(struct TR_TextRegion * self, int align) {
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self->valign = align;
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}
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void tr_textregion_set_max_lines(struct TR_TextRegion * self, int max_lines) {
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self->max_lines = max_lines;
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tr_textregion_reflow(self);
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}
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int tr_textregion_get_visible_lines(struct TR_TextRegion * self) {
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return self->height / self->line_height;
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}
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void tr_textregion_reflow(struct TR_TextRegion * self) {
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if (self->lines) {
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fprintf(stderr, "Need to clean out lines\n");
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#if 0
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list_destroy(self->lines);
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list_free(self->lines);
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free(self->lines);
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#endif
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}
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#if 0
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self->lines = list_create();
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int current_width = 0;
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list_t * current_units = list_create();
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struct TR_TextUnit * leftover = NULL;
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int i = 0;
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while (i < self->text_units
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#endif
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}
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