update drwl
This commit is contained in:
sewn
parent
4fb17188e8
commit
ca47635f2e
3 changed files with 138 additions and 78 deletions
152
drwl.h
152
drwl.h
|
|
@ -1,6 +1,31 @@
|
|||
/*
|
||||
* drwl - https://codeberg.org/sewn/drwl
|
||||
* See LICENSE file for copyright and license details.
|
||||
*
|
||||
* Copyright (c) 2023-2024 sewn <sewn@disroot.org>
|
||||
* Copyright (c) 2024 notchoc <notchoc@disroot.org>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files (the
|
||||
* "Software"), to deal in the Software without restriction, including
|
||||
* without limitation the rights to use, copy, modify, merge, publish,
|
||||
* distribute, sublicense, and/or sell copies of the Software, and to
|
||||
* permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be
|
||||
* included in all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||||
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* The UTF-8 Decoder included is from Bjoern Hoehrmann:
|
||||
* Copyright (c) 2008-2010 Bjoern Hoehrmann <bjoern@hoehrmann.de>
|
||||
* See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for details.
|
||||
*/
|
||||
#pragma once
|
||||
|
||||
|
|
@ -8,56 +33,52 @@
|
|||
#include <fcft/fcft.h>
|
||||
#include <pixman-1/pixman.h>
|
||||
|
||||
#define BETWEEN(X, A, B) ((A) <= (X) && (X) <= (B))
|
||||
|
||||
enum { ColFg, ColBg }; /* colorscheme index */
|
||||
|
||||
typedef struct fcft_font Fnt;
|
||||
|
||||
typedef struct {
|
||||
pixman_image_t *pix;
|
||||
struct fcft_font *font;
|
||||
Fnt *font;
|
||||
uint32_t *scheme;
|
||||
} Drwl;
|
||||
|
||||
#define UTF_INVALID 0xFFFD
|
||||
#define UTF_SIZ 4
|
||||
#define UTF8_ACCEPT 0
|
||||
#define UTF8_REJECT 12
|
||||
#define UTF8_INVALID 0xFFFD
|
||||
|
||||
static const unsigned char utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
|
||||
static const unsigned char utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
|
||||
static const uint32_t utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
|
||||
static const uint32_t utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
|
||||
static const uint8_t utf8d[] = {
|
||||
// The first part of the table maps bytes to character classes that
|
||||
// to reduce the size of the transition table and create bitmasks.
|
||||
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
||||
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
||||
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
||||
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
||||
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
|
||||
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
|
||||
8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
|
||||
10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8,
|
||||
|
||||
// The second part is a transition table that maps a combination
|
||||
// of a state of the automaton and a character class to a state.
|
||||
0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
|
||||
12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
|
||||
12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
|
||||
12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
|
||||
12,36,12,12,12,12,12,12,12,12,12,12,
|
||||
};
|
||||
|
||||
static inline uint32_t
|
||||
utf8decodebyte(const char c, size_t *i)
|
||||
utf8decode(uint32_t *state, uint32_t *codep, uint8_t byte)
|
||||
{
|
||||
for (*i = 0; *i < (UTF_SIZ + 1); ++(*i))
|
||||
if (((unsigned char)c & utfmask[*i]) == utfbyte[*i])
|
||||
return (unsigned char)c & ~utfmask[*i];
|
||||
return 0;
|
||||
}
|
||||
uint32_t type = utf8d[byte];
|
||||
|
||||
static inline size_t
|
||||
utf8decode(const char *c, uint32_t *u)
|
||||
{
|
||||
size_t i, j, len, type;
|
||||
uint32_t udecoded;
|
||||
*codep = (*state != UTF8_ACCEPT) ?
|
||||
(byte & 0x3fu) | (*codep << 6) :
|
||||
(0xff >> type) & (byte);
|
||||
|
||||
*u = UTF_INVALID;
|
||||
udecoded = utf8decodebyte(c[0], &len);
|
||||
if (!BETWEEN(len, 1, UTF_SIZ))
|
||||
return 1;
|
||||
for (i = 1, j = 1; i < UTF_SIZ && j < len; ++i, ++j) {
|
||||
udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
|
||||
if (type)
|
||||
return j;
|
||||
}
|
||||
if (j < len)
|
||||
return 0;
|
||||
*u = udecoded;
|
||||
if (!BETWEEN(*u, utfmin[len], utfmax[len]) || BETWEEN(*u, 0xD800, 0xDFFF))
|
||||
*u = UTF_INVALID;
|
||||
for (i = 1; *u > utfmax[i]; ++i)
|
||||
;
|
||||
return len;
|
||||
*state = utf8d[256 + *state + type];
|
||||
return *state;
|
||||
}
|
||||
|
||||
static int
|
||||
|
|
@ -83,7 +104,7 @@ drwl_create(void)
|
|||
}
|
||||
|
||||
static void
|
||||
drwl_setfont(Drwl *drwl, struct fcft_font *font)
|
||||
drwl_setfont(Drwl *drwl, Fnt *font)
|
||||
{
|
||||
if (drwl)
|
||||
drwl->font = font;
|
||||
|
|
@ -91,21 +112,21 @@ drwl_setfont(Drwl *drwl, struct fcft_font *font)
|
|||
|
||||
/*
|
||||
* Returned font is set within the drawing context if given.
|
||||
* Caller must call drwl_destroy_font on returned font when done using it,
|
||||
* otherwise use drwl_destroy when instead given a drwl context.
|
||||
* Caller must call drwl_font_destroy on returned font when done using it,
|
||||
* otherwise use drwl_destroy when instead given a drawing context.
|
||||
*/
|
||||
static struct fcft_font *
|
||||
drwl_load_font(Drwl *drwl, size_t fontcount,
|
||||
const char *fonts[static fontcount], const char *attributes)
|
||||
static Fnt *
|
||||
drwl_font_create(Drwl *drwl, size_t count,
|
||||
const char *names[static count], const char *attributes)
|
||||
{
|
||||
struct fcft_font *font = fcft_from_name(fontcount, fonts, attributes);
|
||||
Fnt *font = fcft_from_name(count, names, attributes);
|
||||
if (drwl)
|
||||
drwl_setfont(drwl, font);
|
||||
return font;
|
||||
}
|
||||
|
||||
static void
|
||||
drwl_destroy_font(struct fcft_font *font)
|
||||
drwl_font_destroy(Fnt *font)
|
||||
{
|
||||
fcft_destroy(font);
|
||||
}
|
||||
|
|
@ -114,9 +135,9 @@ static inline pixman_color_t
|
|||
convert_color(uint32_t clr)
|
||||
{
|
||||
return (pixman_color_t){
|
||||
((clr >> 24) & 0xFF) * 0x101,
|
||||
((clr >> 16) & 0xFF) * 0x101,
|
||||
((clr >> 8) & 0xFF) * 0x101,
|
||||
((clr >> 24) & 0xFF) * 0x101 * (clr & 0xFF) / 0xFF,
|
||||
((clr >> 16) & 0xFF) * 0x101 * (clr & 0xFF) / 0xFF,
|
||||
((clr >> 8) & 0xFF) * 0x101 * (clr & 0xFF) / 0xFF,
|
||||
(clr & 0xFF) * 0x101
|
||||
};
|
||||
}
|
||||
|
|
@ -182,9 +203,9 @@ drwl_text(Drwl *drwl,
|
|||
unsigned int lpad, const char *text, int invert)
|
||||
{
|
||||
int ty;
|
||||
int utf8charlen, render = x || y || w || h;
|
||||
int render = x || y || w || h;
|
||||
long x_kern;
|
||||
uint32_t cp = 0, last_cp = 0;
|
||||
uint32_t cp = 0, last_cp = 0, state;
|
||||
pixman_color_t clr;
|
||||
pixman_image_t *fg_pix = NULL;
|
||||
int noellipsis = 0;
|
||||
|
|
@ -210,10 +231,16 @@ drwl_text(Drwl *drwl,
|
|||
fcft_subpixel_mode = FCFT_SUBPIXEL_NONE;
|
||||
|
||||
// U+2026 == …
|
||||
eg = fcft_rasterize_char_utf32(drwl->font, 0x2026, fcft_subpixel_mode);
|
||||
if (render)
|
||||
eg = fcft_rasterize_char_utf32(drwl->font, 0x2026, fcft_subpixel_mode);
|
||||
|
||||
while (*text) {
|
||||
utf8charlen = utf8decode(text, &cp);
|
||||
for (const char *p = text, *pp; pp = p, *p; p++) {
|
||||
for (state = UTF8_ACCEPT; *p && utf8decode(&state, &cp, *p) > UTF8_REJECT; p++);
|
||||
if (!*p || state == UTF8_REJECT) {
|
||||
cp = UTF8_INVALID;
|
||||
if (p > pp)
|
||||
p--;
|
||||
}
|
||||
|
||||
glyph = fcft_rasterize_char_utf32(drwl->font, cp, fcft_subpixel_mode);
|
||||
if (!glyph)
|
||||
|
|
@ -226,10 +253,9 @@ drwl_text(Drwl *drwl,
|
|||
|
||||
ty = y + (h - drwl->font->height) / 2 + drwl->font->ascent;
|
||||
|
||||
/* draw ellipsis if remaining text doesn't fit */
|
||||
if (!noellipsis && x_kern + glyph->advance.x + eg->advance.x > w && *(text + 1) != '\0') {
|
||||
if (drwl_text(drwl, 0, 0, 0, 0, 0, text, 0)
|
||||
- glyph->advance.x < eg->advance.x) {
|
||||
if (render && !noellipsis && x_kern + glyph->advance.x + eg->advance.x > w && *(p + 1) != '\0') {
|
||||
// cannot fit ellipsis after current codepoint
|
||||
if (drwl_text(drwl, 0, 0, 0, 0, 0, pp, 0) + x_kern <= w) {
|
||||
noellipsis = 1;
|
||||
} else {
|
||||
w -= eg->advance.x;
|
||||
|
|
@ -254,7 +280,6 @@ drwl_text(Drwl *drwl,
|
|||
PIXMAN_OP_OVER, fg_pix, glyph->pix, drwl->pix, 0, 0, 0, 0,
|
||||
x + glyph->x, ty - glyph->y, glyph->width, glyph->height);
|
||||
|
||||
text += utf8charlen;
|
||||
x += glyph->advance.x;
|
||||
w -= glyph->advance.x;
|
||||
}
|
||||
|
|
@ -285,17 +310,18 @@ drwl_font_getwidth_clamp(Drwl *drwl, const char *text, unsigned int n)
|
|||
static void
|
||||
drwl_finish_drawing(Drwl *drwl)
|
||||
{
|
||||
if (drwl && drwl->pix)
|
||||
if (!drwl)
|
||||
return;
|
||||
if (drwl->pix)
|
||||
pixman_image_unref(drwl->pix);
|
||||
drwl->pix = NULL;
|
||||
}
|
||||
|
||||
static void
|
||||
drwl_destroy(Drwl *drwl)
|
||||
{
|
||||
if (drwl->pix)
|
||||
pixman_image_unref(drwl->pix);
|
||||
if (drwl->font)
|
||||
drwl_destroy_font(drwl->font);
|
||||
drwl_font_destroy(drwl->font);
|
||||
free(drwl);
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue