forked from KolibriOS/kolibrios
389 lines
9.5 KiB
C
389 lines
9.5 KiB
C
/*========================================================
|
|
= =
|
|
= STYLE =
|
|
= =
|
|
========================================================*/
|
|
#define HTML_PADDING_X 8;
|
|
#define HTML_PADDING_Y 5;
|
|
|
|
struct _style {
|
|
bool bold, underlined, italic, strike;
|
|
bool h1, h2, h3, h4, h5, h6;
|
|
bool a;
|
|
bool pre;
|
|
bool ignore;
|
|
bool body;
|
|
dword color;
|
|
void clear();
|
|
};
|
|
|
|
void _style::clear()
|
|
{
|
|
bold=underlined=italic=strike=0;
|
|
h1=h2=h3=h4=h5=h6=0;
|
|
a=0;
|
|
pre=0;
|
|
ignore=0;
|
|
color=0;
|
|
body=0;
|
|
}
|
|
|
|
/*========================================================
|
|
= =
|
|
= TAG =
|
|
= =
|
|
========================================================*/
|
|
struct _tag {
|
|
dword start;
|
|
dword end;
|
|
dword name;
|
|
|
|
bool opens;
|
|
|
|
dword param;
|
|
dword value;
|
|
|
|
void parse();
|
|
int nameis();
|
|
};
|
|
|
|
void _tag::parse()
|
|
{
|
|
dword START = start;
|
|
|
|
calc(1); //WTF
|
|
|
|
if (ESBYTE[START]=='/') {
|
|
START++;
|
|
opens = false;
|
|
} else opens = true;
|
|
|
|
name = START;
|
|
|
|
while ( (START < end) && (!__isWhite(ESBYTE[START])) ) {
|
|
START++;
|
|
}
|
|
if (START!=end) ESBYTE[START] = '\0';
|
|
START++;
|
|
|
|
strlwr(name);
|
|
|
|
start = START;
|
|
}
|
|
|
|
int _tag::nameis(dword _in_tag_name)
|
|
{
|
|
if (name) && (streq(_in_tag_name, name)) return true;
|
|
return false;
|
|
}
|
|
|
|
/*========================================================
|
|
= =
|
|
= DRAW =
|
|
= =
|
|
========================================================*/
|
|
struct _draw
|
|
{
|
|
dword x;
|
|
dword y;
|
|
void init();
|
|
void line_break();
|
|
};
|
|
|
|
void _draw::init()
|
|
{
|
|
x = HTML_PADDING_X;
|
|
y = HTML_PADDING_Y;
|
|
}
|
|
void _draw::line_break()
|
|
{
|
|
y+= list.item_h;
|
|
x = HTML_PADDING_X;
|
|
}
|
|
|
|
/*========================================================
|
|
= =
|
|
= BUF =
|
|
= =
|
|
========================================================*/
|
|
struct _buf
|
|
{
|
|
dword pointer;
|
|
dword len;
|
|
dword start;
|
|
dword end;
|
|
void init();
|
|
};
|
|
|
|
void _buf::init(dword _buf_pointer, _buf_len)
|
|
{
|
|
pointer = _buf_pointer;
|
|
len = _buf_len;
|
|
start = malloc(len);
|
|
end = start + len;
|
|
strlcpy(start, pointer, len);
|
|
}
|
|
|
|
/*========================================================
|
|
= =
|
|
= TEXT =
|
|
= =
|
|
========================================================*/
|
|
struct _text {
|
|
int size_pt_change;
|
|
dword start;
|
|
dword end;
|
|
|
|
dword width;
|
|
};
|
|
|
|
/*
|
|
dword line_break;
|
|
byte char_holder;
|
|
|
|
if (ESBYTE[buf.pos]==0x0A) {
|
|
if (style.pre) {
|
|
draw.line_break();
|
|
continue;
|
|
}
|
|
}
|
|
|
|
while (get_label_len(text.start) + draw.x + 30 > list.w)
|
|
{
|
|
for (line_break=tag.start-1; line_break>text.start; line_break--;)
|
|
{
|
|
char_holder = ESBYTE[line_break]; //set line end
|
|
ESBYTE[line_break] = '\0';
|
|
if (get_label_len(text.start) + draw.x + 30 <= list.w) break;
|
|
ESBYTE[line_break] = char_holder; //restore line
|
|
}
|
|
if (draw_on) {
|
|
if (style.a) {
|
|
link.add(draw.x,draw.y + size_pt_change,get_label_len(text.start),list.item_h,text.start," ");
|
|
label_draw_bar(draw.x, draw.y+kfont.size.pt+1, get_label_len(text.start), style.color);
|
|
}
|
|
WriteTextIntoBuf(draw.x, draw.y, style.color, text.start);
|
|
}
|
|
draw.x+=char_width[' '];
|
|
ESBYTE[line_break] = char_holder; //restore line
|
|
text.start = line_break;
|
|
draw.line_break();
|
|
}
|
|
if (draw_on) {
|
|
if (style.a) {
|
|
link.add(draw.x,draw.y + size_pt_change,get_label_len(text.start),list.item_h,text.start," ");
|
|
label_draw_bar(draw.x, draw.y+kfont.size.pt+1, get_label_len(text.start), style.color);
|
|
}
|
|
WriteTextIntoBuf(draw.x, draw.y, style.color, text.start);
|
|
}
|
|
draw.x += char_width[' '];
|
|
draw.x += get_label_len(text.start);
|
|
*/
|
|
|
|
|
|
/*========================================================
|
|
= =
|
|
= DOM =
|
|
= =
|
|
========================================================*/
|
|
struct _dom
|
|
{
|
|
_tag tag;
|
|
_style style;
|
|
_draw draw;
|
|
_buf buf;
|
|
_text text;
|
|
_canvas canvas;
|
|
void init();
|
|
void apply_text();
|
|
void set_style();
|
|
void parse();
|
|
};
|
|
|
|
void _dom::init()
|
|
{
|
|
style.clear();
|
|
draw.init();
|
|
buf.init(io.buffer_data, strlen(io.buffer_data));
|
|
}
|
|
|
|
void _dom::set_style()
|
|
{
|
|
if (tag.nameis("body")) style.body = tag.opens;
|
|
if (tag.nameis("b")) style.bold = tag.opens;
|
|
if (tag.nameis("i")) style.italic = tag.opens;
|
|
if (tag.nameis("s")) style.strike = tag.opens;
|
|
if (tag.nameis("pre")) style.pre = tag.opens;
|
|
if (tag.nameis("style")) style.ignore = tag.opens;
|
|
if (tag.nameis("a")) {
|
|
style.a = tag.opens;
|
|
if (tag.opens) style.color=0x0000FF; else style.color=0;
|
|
}
|
|
|
|
if (tag.nameis("br"))
|
|
|| (tag.nameis("p"))
|
|
|| (tag.nameis("div"))
|
|
|| (tag.nameis("tr")) {
|
|
draw.line_break();
|
|
return;
|
|
}
|
|
|
|
if (tag.nameis("li")) && (tag.opens) {
|
|
draw.line_break();
|
|
return;
|
|
}
|
|
|
|
if (tag.nameis("td")) && (tag.opens) {
|
|
draw.line_break();
|
|
return;
|
|
}
|
|
|
|
/*
|
|
if (tag.nameis("title")) {
|
|
strcpy(#title, text.start);
|
|
strcat(#title, " - Aelia");
|
|
DrawTitle(#title);
|
|
}
|
|
|
|
|
|
|
|
if (tag.nameis("h1")) || (tag.nameis("/h1")) ||
|
|
(tag.nameis("h2")) || (tag.nameis("/h2")) ||
|
|
(tag.nameis("h3")) || (tag.nameis("/h3")) {
|
|
if (tag.nameis("h1")) {
|
|
text.size_pt_change = 8;
|
|
} else if (tag.nameis("/h1")) {
|
|
text.size_pt_change = -8;
|
|
} else if (tag.nameis("h2")) {
|
|
text.size_pt_change = 6;
|
|
} else if (tag.nameis("/h2")) {
|
|
text.size_pt_change = -6;
|
|
} else if (tag.nameis("h3")) {
|
|
text.size_pt_change = 4;
|
|
} else if (tag.nameis("/h3")) {
|
|
text.size_pt_change = -4;
|
|
}
|
|
kfont.size.pt += text.size_pt_change;
|
|
get_label_symbols_size();
|
|
if (text.size_pt_change > 0) {
|
|
draw.y+= list.item_h;//что если будет очень длинная строка в теге?
|
|
} else {//коммент выше и коммент ниже связаны
|
|
draw.y+= list.item_h - text.size_pt_change;//не очень понятна логика этого места
|
|
text.size_pt_change = 0;
|
|
}
|
|
draw.x = HTML_PADDING_X;
|
|
return;
|
|
}
|
|
*/
|
|
}
|
|
|
|
void _dom::apply_text()
|
|
{
|
|
if (kfont.size.height) && (style.body) {
|
|
kfont.bold = style.bold;
|
|
canvas.write_text(draw.x, draw.y, style.color, text.start);
|
|
if (style.a) {
|
|
canvas.draw_hor_line(draw.x, draw.y + list.item_h-1, kfont.get_label_width(text.start), style.color);
|
|
link.add(draw.x, draw.y, kfont.get_label_width(text.start), list.item_h, text.start, "http://kolibrios.org");
|
|
}
|
|
}
|
|
}
|
|
|
|
void _dom::parse()
|
|
{
|
|
dword i;
|
|
init();
|
|
|
|
text.start = buf.start;
|
|
tag.start = buf.start;
|
|
for ( i=buf.start; i<buf.end; i++ )
|
|
{
|
|
if (ESBYTE[i]=='<') {
|
|
tag.start = i+1;
|
|
text.end = i-1;
|
|
ESBYTE[i] = '\0';
|
|
apply_text();
|
|
}
|
|
if (ESBYTE[i]=='>') {
|
|
tag.end = i-1;
|
|
text.start = i+1;
|
|
ESBYTE[i] = '\0';
|
|
tag.parse();
|
|
set_style();
|
|
}
|
|
}
|
|
|
|
free(buf.start);
|
|
if (!kfont.size.height) {
|
|
list.count = draw.y/list.item_h+3;
|
|
if (list.count < list.visible) list.count = list.visible;
|
|
kfont.size.height = list.count+5*list.item_h;
|
|
kfont.raw_size = 0;
|
|
parse();
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*========================================================
|
|
= =
|
|
= PREPARE =
|
|
= =
|
|
========================================================*/
|
|
void PreparePage()
|
|
{
|
|
_dom dom;
|
|
list.SetSizes(0, TOOLBAR_H, Form.cwidth-scroll.size_x-1, Form.cheight-TOOLBAR_H, kfont.size.pt+4);
|
|
strcpy(#title, history.current()+strrchr(history.current(),'/'));
|
|
ChangeCharset(charsets[encoding], "CP866", io.buffer_data);
|
|
link.clear();
|
|
|
|
kfont.size.height = 0;
|
|
|
|
if ( strstri(io.buffer_data, "<html") == -1 ) ParseTxt(); else dom.parse();
|
|
|
|
kfont.ApplySmooth();
|
|
|
|
DrawPage();
|
|
}
|
|
|
|
void ParseTxt()
|
|
{
|
|
_canvas canvas;
|
|
byte ch, zeroch=0;
|
|
dword bufoff, buflen, line_start, srch_pos;
|
|
int stroka_y=5, line_length=0;
|
|
|
|
line_start=io.buffer_data;
|
|
buflen = strlen(io.buffer_data) + io.buffer_data;
|
|
for (bufoff=io.buffer_data; bufoff<buflen; bufoff++)
|
|
{
|
|
ch = ESBYTE[bufoff];
|
|
line_length += kfont_char_width[ch];
|
|
if (line_length>=list.w-30) || (ch==10) {
|
|
srch_pos = bufoff;
|
|
loop()
|
|
{
|
|
if (__isWhite(ESBYTE[srch_pos])) { bufoff=srch_pos+1; break; } //normal word-break
|
|
if (srch_pos == line_start) break; //no white space found in whole line
|
|
srch_pos--;
|
|
}
|
|
if (kfont.size.height) {
|
|
ESBYTE[bufoff] >< zeroch; //set line end
|
|
canvas.write_text(8, stroka_y, 0x000000, line_start);
|
|
ESBYTE[bufoff] >< zeroch; //restore line
|
|
}
|
|
stroka_y += list.item_h;
|
|
line_start = bufoff;
|
|
line_length = 0;
|
|
}
|
|
}
|
|
if (!kfont.size.height) {
|
|
list.count = stroka_y/list.item_h+3;
|
|
if (list.count < list.visible) list.count = list.visible;
|
|
kfont.size.height = list.count+5*list.item_h;
|
|
kfont.raw_size = 0;
|
|
ParseTxt();
|
|
}
|
|
else canvas.write_text(8, stroka_y, 0x000000, line_start);
|
|
} |