kolibrios/programs/cmm/aelia/prepare_page.h

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char char_width[255];
void PreparePage()
{
int i;
list.SetSizes(0, TOOLBAR_H, Form.cwidth-scroll.size_x-1, Form.cheight-TOOLBAR_H, label.size.pt+1);
//get font chars width, need to increase performance
//if (strstri(io.buffer_data, "<html>")==-1) {
debugln("no <html> found");
label.changeSIZE();
for (i=0; i<256; i++) char_width[i] = label.symbol_size(i);
ChangeCharset(charsets[encoding], "CP866", io.buffer_data);
DrawProgress(STEP_2_COUNT_PAGE_HEIGHT); ParceTxt(false); //get page height to calculate buffer size
DrawProgress(STEP_3_DRAW_PAGE_INTO_BUFFER); ParceTxt(true); //draw text in buffer
DrawProgress(STEP_4_SMOOTH_FONT); label.apply_smooth();
DrawProgress(STEP_5_STOP); DrawPage();
/*}
else {
debugln("<html> tag found");
label.changeSIZE();
for (i=0; i<256; i++) char_width[i] = label.symbol_size(i);
ChangeCharset(charsets[encoding], "CP866", io.buffer_data);
DrawProgress(STEP_2_COUNT_PAGE_HEIGHT); ParceHtml(false); //get page height to calculate buffer size
DrawProgress(STEP_3_DRAW_PAGE_INTO_BUFFER); ParceHtml(true); //draw text in buffer
DrawProgress(STEP_4_SMOOTH_FONT); label.apply_smooth();
DrawProgress(STEP_5_STOP); DrawPage();
}*/
}
void ParceTxt(byte draw)
{
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 += 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 (draw==true) {
ESBYTE[bufoff] >< zeroch; //set line end
label.write_buf(8,stroka_y,list.w,label.size.height, 0xFFFFFF, 0, label.size.pt, line_start);
ESBYTE[bufoff] >< zeroch; //restore line
DrawProgressWhileDrawing(bufoff, buflen);
if (stroka_y/list.item_h-list.first==list.visible) DrawPage();
}
stroka_y += list.item_h;
line_start = bufoff;
line_length = 0;
}
}
if (draw==false) {
list.count = stroka_y/list.item_h+2;
if (list.count < list.visible) list.count = list.visible;
label.size.height = list.count+1*list.item_h;
label.raw_size = 0;
}
if (draw==true) label.write_buf(8,stroka_y,list.w,label.size.height, 0xFFFFFF, 0, label.size.pt, line_start);
}
/*========================================================
= =
= HTML =
= =
========================================================*/
/*
HTML parcer tags:
<title>
<meta encoding>
<a hrf="">
<img src="" alt="">
<h1> ... <h6>
<b>
<u>
<s>
<pre>
*/
struct _DOM {
dword start;
dword end;
dword len;
};
struct _style {
bool b, u, i, s;
bool h1, h2, h3, h4, h5, h6;
bool a;
bool pre;
bool title;
bool br;
} style;
struct _tag {
dword start;
dword name;
dword param[10];
dword value[10];
void parce();
void get_param_value();
};
void _tag::parce()
{
bool closed_status = false;
if (start) debugln(start);
/*
if (strncmp(start, "/", 1)==0) {
start++;
closed_status = true;
}
if (!strcmp(start, "title")) style.title = closed_status;
if (!strcmp(start, "br")) style.br = closed_status;
*/
}
struct _text {
dword start;
int x, y;
void draw();
};
void _text::draw()
{
if (start) debugln(start);
/*
if (style.title) {
strlcpy(#title, start, sizeof(title));
DrawTitle(#title);
return;
}
if (style.br) {
y += list.item_h;
style.br = false;
}
*/
}
void ParceHtml(byte draw)
{
byte ch;
_DOM DOM;
_text text;
_tag tag;
dword DOM_pos;
/* Create DOM */
debugln("starting DOM parce");
DOM.len = strlen(io.buffer_data);
DOM.start = malloc(DOM.len);
DOM.end = DOM.start + DOM.len;
strlcpy(DOM.start, io.buffer_data, DOM.len);
/* Parce DOM */
text.start = DOM_pos;
for (DOM_pos=DOM.start; DOM_pos<DOM.end; DOM_pos++)
{
ch = ESBYTE[DOM_pos];
if (ch=='<') {
ESBYTE[DOM_pos] = NULL;
tag.start = DOM_pos + 1;
text.draw();
}
if (ch=='>') {
ESBYTE[DOM_pos] = NULL;
text.start = DOM_pos + 1;
tag.parce();
}
}
free(DOM.start);
ExitProcess();
}