milsko/src/text/text.c
2026-07-05 06:51:49 +09:00

312 lines
6.8 KiB
C

#include <Mw/Milsko.h>
int (*MwFLDrawText)(MwWidget handle, MwFLFont font, MwPoint* point, const char* text, MwLLColor color) = NULL;
int (*MwFLTextWidth)(MwFLFont font, const char* text) = NULL;
int (*MwFLTextHeight)(MwFLFont font, int count) = NULL;
void* (*MwFLFontLoad)(unsigned char* data, unsigned int size, int px) = NULL;
void (*MwFLFontFree)(void* handle) = NULL;
#if defined(USE_FREETYPE2) || defined(USE_STB_TRUETYPE)
#define TTF
#endif
#define FontWidth 7
#define FontHeight 14
static void bitmap_MwDrawText(MwWidget handle, MwPoint* point, const char* text, int bold, MwLLColor color);
static int count_nl(const char* text) {
int c = 1;
int i = 0;
while(text[i] != 0) {
int out;
int l = MwUTF8ToUTF32(text + i, &out);
if(l == 0) break;
i += l;
if(out == '\n') c++;
}
return c;
}
static int is_bold(MwWidget handle, MwFLFont ttf) {
size_t u = (size_t)ttf;
int s;
if(u & MwFLFlagBold) return 1;
s = MwGetInteger(handle, MwNbold);
if(s == MwDEFAULT) return 0;
return s;
}
#ifdef TTF
static int is_bitmap(MwWidget handle, MwFLFont ttf) {
size_t u = (size_t)ttf;
int s;
if(u & MwFLFlagBitmap) return 1;
s = MwGetInteger(handle, MwNbitmapFont);
if(s == MwDEFAULT) return 0;
return s;
}
static int is_monospace(MwWidget handle, MwFLFont ttf) {
size_t u = (size_t)ttf;
int s;
if(u & MwFLFlagMonospace) return 1;
s = MwGetInteger(handle, MwNuseMonospace);
if(s == MwDEFAULT) return 0;
return s;
}
#endif
#ifdef TTF
static MwFLFont assume_ttf(MwWidget handle, MwFLFont ttf) {
if(is_bitmap(handle, ttf)) return NULL;
if(is_monospace(handle, ttf)) return is_bold(handle, ttf) ? MwGetVoid(handle, MwNboldMonospaceFont) : MwGetVoid(handle, MwNmonospaceFont);
return is_bold(handle, ttf) ? MwGetVoid(handle, MwNboldFont) : MwGetVoid(handle, MwNfont);
}
#endif
void MwDrawText(MwWidget handle, MwFLFont ttf, MwPoint* point, const char* text, int align, MwLLColor color) {
MwPoint p = *point;
char* input = (char*)text;
char* last = input;
int cp;
MwLLColor fadedColor = NULL;
if(MwGetInteger(handle, MwNdisabled) == 1) {
MwLLColor c = handle->parent == NULL ? NULL : MwParseColor(handle->parent, MwGetText(handle->parent, MwNbackground));
if(c != NULL) {
fadedColor = MwLLAllocColor(handle->lowlevel, color->common.red, color->common.blue, color->common.green);
fadedColor->common.red = fadedColor->common.red + (c->common.red - fadedColor->common.red) * 0.5;
fadedColor->common.green = fadedColor->common.green + (c->common.green - fadedColor->common.green) * 0.5;
fadedColor->common.blue = fadedColor->common.blue + (c->common.blue - fadedColor->common.blue) * 0.5;
MwLLFreeColor(c);
}
}
#ifdef TTF
if(ttf <= MwFLBuildFont(0xff) && !is_bitmap(handle, ttf)) ttf = assume_ttf(handle, ttf);
#endif
p.y -= (MwTextHeight(handle, ttf, text) - (MwTextHeight(handle, ttf, text) / count_nl(text))) / 2;
while(*input != 0) {
input += MwUTF8ToUTF32(input, &cp);
if(*input == 0 || cp == '\n') {
char* line = malloc(input - last + 1);
int i;
memcpy(line, last, input - last);
line[input - last] = 0;
for(i = 0; line[i] != 0; i++) {
if(line[i] == '\r' || line[i] == '\n') {
line[i] = 0;
break;
}
}
if(strlen(line) == 0) {
free(line);
last = input;
continue;
}
p.x = point->x;
if(align == MwALIGNMENT_CENTER) {
p.x -= MwTextWidth(handle, ttf, line) / 2;
} else if(align == MwALIGNMENT_END) {
p.x -= MwTextWidth(handle, ttf, line);
}
#ifdef TTF
if(MwFLDrawText)
if(is_bitmap(handle, ttf) || ttf == NULL || MwFLDrawText(handle, ttf, &p, line, fadedColor ? fadedColor : color))
#endif
bitmap_MwDrawText(handle, &p, line, is_bold(handle, ttf), fadedColor ? fadedColor : color);
p.y += MwTextHeight(handle, ttf, line);
free(line);
last = input;
}
}
if(fadedColor) {
MwLLFreeColor(fadedColor);
}
}
int MwTextWidth(MwWidget handle, MwFLFont ttf, const char* text) {
int len = 0;
int st;
int cp;
char* input = (char*)text;
char* last = input;
#ifndef TTF
(void)handle;
(void)ttf;
#endif
#ifdef TTF
if(ttf <= MwFLBuildFont(0xff)) ttf = assume_ttf(handle, ttf);
#endif
while(*input != 0) {
input += MwUTF8ToUTF32(input, &cp);
if(*input == 0 || cp == '\n') {
char* line = malloc(input - last + 1);
int i;
memcpy(line, last, input - last);
line[input - last] = 0;
for(i = 0; line[i] != 0; i++) {
if(line[i] == '\r' || line[i] == '\n') {
line[i] = 0;
break;
}
}
#ifdef TTF
if(MwFLTextWidth && !MwGetInteger(handle, MwNbitmapFont) && ttf != NULL && (st = MwFLTextWidth(ttf, line)) != -1) {
} else
#endif
st = MwUTF8Length(line) * FontWidth;
if(st > len) len = st;
free(line);
last = input;
}
}
return len;
}
int MwTextHeight(MwWidget handle, MwFLFont ttf, const char* text) {
int c = count_nl(text);
#ifdef TTF
int st;
#endif
#ifdef TTF
if(ttf <= MwFLBuildFont(0xff)) ttf = assume_ttf(handle, ttf);
#else
(void)handle;
(void)text;
(void)ttf;
#endif
#ifdef TTF
if(MwFLTextHeight)
if(!MwGetInteger(handle, MwNbitmapFont) && ttf != NULL && (st = MwFLTextHeight(ttf, c)) != -1) return st;
#endif
return FontHeight * c;
}
void* MwFontLoad(unsigned char* data, unsigned int size) {
if(MwFLFontLoad)
return MwFLFontLoad(data, size, 14);
return NULL;
}
void MwFontFree(void* handle) {
if(MwFLFontFree) MwFLFontFree(handle);
}
static void bitmap_MwDrawText(MwWidget handle, MwPoint* point, const char* text, int bold, MwLLColor color) {
int i = 0, x, y, sx, sy;
int tw, th;
unsigned char* px;
MwRect r;
MwLLPixmap p;
if(strlen(text) == 0) text = " ";
tw = MwTextWidth(handle, NULL, text);
th = MwTextHeight(handle, NULL, text);
px = malloc(tw * th * 4);
memset(px, 0, tw * th * 4);
sx = 0;
sy = 0;
while(text[i] != 0) {
int out;
i += MwUTF8ToUTF32(text + i, &out);
if(out > 0xff) {
out = 0;
}
if(out == '\n') {
sx = 0;
sy += FontHeight;
} else {
for(y = 0; y < FontHeight; y++) {
for(x = 0; x < FontWidth; x++) {
unsigned char* ppx = &px[((sy + y) * tw + sx + x) * 4];
if((bold ? MwBoldFontData : MwFontData)[out].data[y] & (1 << ((FontWidth - 1) - x))) {
ppx[0] = color->common.red;
ppx[1] = color->common.green;
ppx[2] = color->common.blue;
ppx[3] = 255;
} else {
ppx[0] = 0;
ppx[1] = 0;
ppx[2] = 0;
ppx[3] = 0;
}
}
}
sx += FontWidth;
}
}
p = MwLoadRaw(handle, px, tw, th);
r.x = point->x;
r.y = point->y - th / 2;
r.width = tw;
r.height = th;
MwLLDrawPixmap(handle->lowlevel, &r, p);
MwLLDestroyPixmap(p);
free(px);
}
typedef int (*call_t)(void);
void MwFLSetup(void) {
call_t calls[] = {
#ifdef USE_FREETYPE2
MWFL_FT2Setup,
#endif
#ifdef USE_STB_TRUETYPE
MwFL_STBTTSetup,
#endif
NULL};
int i;
for(i = 0; calls[i] != NULL; i++) {
if(calls[i]() == 0) return;
}
}