Subversion Repositories Kolibri OS

dword bufpointer;

dword o_bufpointer;

dword bufsize;

scroll_bar scroll_wv = { 15,200,398,44,0,2,115,15,0,0xeeeeee,0xBBBbbb,0xeeeeee,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1};

enum { ALIGN_LEFT, ALIGN_CENTER, ALIGN_RIGHT};

struct _style {

byte

	b, i, u, s,

	pre,

	blq,

	li,

	li_tab,

	align;

};

struct TWebBrowser {

	llist list;

	_style style;

	dword draw_line_width;

	DrawBufer DrawBuf;

	void Parse();

	void SetTextStyle();

	void DrawPage();

	void DrawScroller();

	void NewLine();

	void Perenos();

	byte end_parsing;

} WB1;

byte

	link,

	ignor_text,

	cur_encoding,

	t_html,

	t_body;

/*

struct _condition {

byte

	text_active,

	text_val,

	href,

	max

} condition;

*/

byte condition_text_active, condition_text_val, condition_href, condition_max;

dword text_colors[300];

dword text_color_index;

dword link_color_inactive;

dword link_color_active;

dword bg_color;

int stroka;

int stolbec;

int tab_len;

int anchor_line_num;

char URL[10000];

char header[2048];

char line[500];

char tagparam[10000];

char tag[100];

char attr[1200];

char val[4096];

char anchor[256];

#include "..\TWB\history.h"

#include "..\TWB\links.h"

#include "..\TWB\colors.h"

#include "..\TWB\unicode_tags.h"

#include "..\TWB\img_cache.h"

#include "..\TWB\parce_tag.h"

#include "..\TWB\table.h"

//=======================================================================

void TWebBrowser::DrawPage()

{

	int start_x, start_y, line_length, stolbec_len, magrin_left=5;

	if (!header)

	{

		ChangeCharset("UTF-8", "CP866", #line);

		strcpy(#header, #line);

		strcat(#header, " -");

		strcat(#header, #version);

		line = 0;

		return;

	}

	if (t_html) && (!t_body) return;

	if (stroka >= 0) && (stroka - 2 < list.visible) && (line) && (!anchor)

	{

		start_x = stolbec * list.font_w + magrin_left * DrawBuf.zoom + list.x;

		start_y = stroka * list.line_h + magrin_left + list.y;

		stolbec_len = utf8_strlen(#line);

		line_length = stolbec_len * list.font_w * DrawBuf.zoom;

		WriteBufText(start_x, 0, list.font_type, text_colors[text_color_index], #line, buf_data);

		if (style.b)	WriteBufText(start_x+1, 0, list.font_type, text_colors[text_color_index], #line, buf_data);

		if (style.i) { stolbec++; DrawBuf.Skew(start_x, 0, line_length, list.line_h); } // bug with zoom>1

		if (style.s) DrawBuf.DrawBar(start_x, list.line_h / 2 - DrawBuf.zoom, line_length, DrawBuf.zoom, text_colors[text_color_index]);

		if (style.u) DrawBuf.DrawBar(start_x, list.line_h - DrawBuf.zoom - DrawBuf.zoom, line_length, DrawBuf.zoom, text_colors[text_color_index]);

		if (link) {

			DrawBuf.DrawBar(start_x, list.line_h - DrawBuf.zoom - DrawBuf.zoom, line_length, DrawBuf.zoom, text_colors[text_color_index]);

			UnsafeDefineButton(start_x-2, start_y-1, line_length + 3, DrawBuf.zoom * list.font_h, PageLinks.count + 400 + BT_HIDE, 0xB5BFC9);

			PageLinks.AddText(#line, line_length, list.line_h, UNDERLINE);

		}

		stolbec += stolbec_len;

	}

}

//=======================================================================

void TWebBrowser::Parse(){

	word bukva[2];

	int j;

	byte ignor_param;

	char temp[768];

	dword bufpos = bufpointer;

	int line_len;

	style.b = style.i = style.u = style.s = style.blq = t_html = t_body =

	style.li = link = ignor_text = text_color_index = text_colors[0] =

	style.li_tab = condition_text_val = condition_text_active = 0; //îáíóëÿåì òåãè

	end_parsing = false;

	condition_max = 255;

	style.align = ALIGN_LEFT;

	link_color_inactive = 0x0000FF;

	link_color_active = 0xFF0000;

	bg_color = 0xFFFFFF;

	DrawBuf.Fill(bg_color);

	PageLinks.Clear();

	strcpy(#header, #version);

	stroka = -list.first;

	stolbec = 0;

	line = 0;

	draw_line_width = list.w * DrawBuf.zoom;

	style.pre = 1;

	if (strstri(bufpointer, "html")) style.pre = 0;

	for ( ; (bufpointer+bufsize > bufpos) && (ESBYTE[bufpos]!=0); bufpos++;)

	{

		if (end_parsing) break;

		bukva = ESBYTE[bufpos];

		if (ignor_text) && (bukva!='<') continue;

		if (condition_text_active) && (condition_text_val != condition_href) && (bukva!='<') continue;

		switch (bukva)

		{

		case 0x0a:

			if (style.pre)

			{

				chrcat(#line, ' ');

				bukva = temp = NULL;

				Perenos();

				break;

			}

		case '\9':

			if (style.pre) //èíà÷å èä¸ì íà 0x0d

			{

				tab_len = strlen(#line) % 4;

				if (!tab_len) tab_len = 4;

				for (j=0; j

				break;

			}

			goto DEFAULT_MARK;

		case '&': //  and so on

			bufpos++;

			tag=0;

			for (j=0; (ESBYTE[bufpos]<>';') && (j<7);   j++, bufpos++;)

			{

				bukva = ESBYTE[bufpos];

				chrcat(#tag, bukva);

			}

			if (bukva = GetUnicodeSymbol()) goto DEFAULT_MARK;

			break;

		case '<':

			bufpos++; //ïðîìîòàåì ñèìâîë <

			tag = attr = tagparam = ignor_param = NULL;

			if (ESBYTE[bufpos] == '!') //ôèëüòðàöèÿ âíóòðè , äåðçêî

			{

				bufpos++;

				if (ESBYTE[bufpos] == '-')

				{

				HH_:

					do

					{

						bufpos++;

						if (bufpointer + bufsize <= bufpos) break 2;

					}

					while (ESBYTE[bufpos] <>'-');

					bufpos++;

					if (ESBYTE[bufpos] <>'-') goto HH_;

				}

			}

			while (ESBYTE[bufpos] !='>') && (bufpos < bufpointer + bufsize) //ïîëó÷àåì òåã è åãî ïàðàìåòðû

			{

				bukva = ESBYTE[bufpos];

				if (bukva == '\9') || (bukva == '\x0a') || (bukva == '\x0d') bukva = ' ';

				if (!ignor_param) && (bukva <>' ')

				{

					if (strlen(#tag)

				}

				else

				{

					ignor_param = true;

					if (!ignor_text) && (strlen(#tagparam)+1

				}

				bufpos++;

			}

			strlwr(#tag);

			if (condition_text_active) && (condition_text_val != condition_href)

			{

				if (strcmp(#tag, "/condition")!=0) break;

			}

			if (tag[strlen(#tag)-1]=='/') tag[strlen(#tag)-1]=NULL; //for br/

			if (tagparam) GetNextParam();

			if (stolbec + utf8_strlen(#line) > list.column_max) Perenos();

			DrawPage();

			line = NULL;

			if (tag) SetTextStyle(WB1.DrawBuf.zoom * 5 + list.x, stroka * list.line_h + list.y + 5); //îáðàáîòêà òåãîâ

			tag = attr = tagparam = ignor_param = NULL;

			break;

		default:

			DEFAULT_MARK:

			if (bukva<=15) bukva=' ';

			line_len = utf8_strlen(#line);

			if (!style.pre) && (bukva == ' ')

			{

				if (line[line_len-1]==' ') break; //no double spaces

				if (!stolbec) && (!line) break; //no paces at the beginning of the line

			}

			if (line_len < sizeof(line)) chrcat(#line, bukva);

			if (stolbec + line_len > list.column_max) Perenos();

		}

	}

	DrawPage();

	NewLine();

	DrawBar(list.x, stroka * list.line_h + list.y + 5, draw_line_width, -stroka * list.line_h + list.h - 5, bg_color);

	DrawBar(list.x, list.visible * list.line_h + list.y + 4, draw_line_width, -list.visible * list.line_h + list.h - 4, bg_color);

	if (list.first == 0) list.count = stroka;

	if (anchor) //åñëè ïîñðåäè òåêñòà ïîÿâèòñÿ íîâûé ÿêîðü - áóäåò áåñêîíå÷íûé öèêë

	{

		anchor=NULL;

		list.first=anchor_line_num;

		Parse();

	}

	DrawScroller();

}

void TWebBrowser::Perenos()

{

	int perenos_num;

	char new_line_text[4096];

	perenos_num = strrchr(#line, ' ');

	if (!perenos_num) && (utf8_strlen(#line)>list.column_max) perenos_num=list.column_max;

	strcpy(#new_line_text, #line + perenos_num);

	line[perenos_num] = 0x00;

	if (stroka-1 > list.visible) && (list.first <>0) end_parsing=true;

	DrawPage();

	strcpy(#line, #new_line_text);

	NewLine();

}

char oldtag[100];

void TWebBrowser::SetTextStyle(int left1, top1) {

	dword hr_color;

	byte opened;

	byte meta_encoding;

	//ïðîâåðÿåì òåã îòêðûâàåòñÿ èëè çàêðûâàåòñÿ

	if (tag[0] == '/')

	{

		 opened = 0;

		 strcpy(#tag, #tag+1);

	}

	else opened = 1;

	if (istag("html"))

	{

		t_html = opened;

		return;

	}

	if (istag("script")) || (istag("style")) || (istag("binary")) || (istag("select")) ignor_text = opened;

	if (istag("form")) if (!opened) ignor_text = false;

	if(istag("title"))

	{

		if (opened) header=NULL;

		else if (!stroka) DrawTitle(#header); //òåã çàêðûëñÿ - âûâåëè ñòðîêó

		return;

	}

	if (ignor_text) return;

	IF(istag("q"))

	{

		if (opened)	strcat(#line, " \"");

		if (!opened) strcat(#line, "\" ");

	}

	if (anchor) && (isattr("id=")) //î÷åíü ïëîõî!!! ïîòîìó ÷òî åñëè íå ïîñëåäíèé òåã, ðàáîòàòü íå áóäåò

	{

		if (!strcmp(#anchor, #val))	anchor_line_num=list.first+stroka;

	}

	if (istag("body"))

	{

		t_body = opened;

		do{

			if (isattr("condition_max=")) condition_max = atoi(#val);

			if (isattr("link=")) link_color_inactive = GetColor(#val);

			if (isattr("alink=")) link_color_active = GetColor(#val);

			if (isattr("text=")) text_colors[0]=GetColor(#val);

			if (isattr("bgcolor="))

			{

				bg_color=GetColor(#val);

				DrawBuf.Fill(bg_color);

			}

		} while(GetNextParam());

		if (opened) && (cur_encoding==CH_NULL)

		{

			debugln("Document has no information about encoding, UTF will be used");

			//BufEncode(CH_UTF8);

		}

		return;

	}

	if (istag("a"))

	{

		if (opened)

		{

			if (link) IF(text_color_index > 0) text_color_index--; //åñëè ïðåäûäóùèé òåã à íå áûë çàêðûò

			do{

				if (isattr("href="))

				{

					if (stroka - 1 > list.visible) || (stroka < -2) return;

					text_color_index++;

					text_colors[text_color_index] = text_colors[text_color_index-1];

					link = 1;

					text_colors[text_color_index] = link_color_inactive;

					PageLinks.AddLink(#val, DrawBuf.zoom * stolbec * list.font_w + left1, top1-DrawBuf.zoom);

				}

				if (anchor) && (isattr("name="))

				{

					if (!strcmp(#anchor, #val))

					{

						anchor_line_num=list.first+stroka;

					}

				}

			} while(GetNextParam());

		}

		else {

			link = 0;

			IF(text_color_index > 0) text_color_index--;

		}

		return;

	}

	if (istag("font"))

	{

		if (opened)

		{

			text_color_index++;

			text_colors[text_color_index] = text_colors[text_color_index-1];

			do{

				if (strcmp(#attr, "color=") == 0) //&& (attr[1] == '#')

				{

					text_colors[text_color_index] = GetColor(#val);

				}

			} while(GetNextParam());

		}

		else

			if (text_color_index > 0) text_color_index--;

		return;

	}

	if (istag("br")) {

		NewLine();

		return;

	}

	if (istag("div")) || (istag("header")) || (istag("article")) || (istag("footer")) {

		IF(oldtag[0] <>'h') NewLine();

		if (isattr("bgcolor="))

		{

			bg_color=GetColor(#val);

			DrawBuf.Fill(bg_color);

		}

		return;

	}

	if (istag("p")) {

		IF(oldtag[0] == 'h') return;

		NewLine();

		IF(opened) NewLine();

		return;

	}

	if(istag("table")) {

		table.active = opened;

		NewLine();

		if (opened)	table.NewTable();

	}

	if(istag("td")) {

		if (opened)

		{

			table.cur_col++;

			table.row_h = 0;

			do {

				if (isattr("width="))

				{

					table.col_w[table.cur_col] = atoi(#val);

					// NewLine();

					// strcpy(#line, #val);

					// NewLine();

				}

			} while(GetNextParam());

		}

		else

		{

			if (table.row_h > table.row_max_h) table.row_max_h = table.row_h;

		}

	}

	if(istag("tr")) {

		if (opened)

		{

			table.cur_col = 0;

			table.row_max_h = 0;

			table.row_start = stroka;

		}

		else

		{

			NewLine();

			if (table.cur_row == 0) table.max_cols = table.cur_col;

			table.cur_row++;

			table.max_cols = table.cur_col;

		}

	}

	/*

	if (istag("center"))

	{

		if (opened) style.align = ALIGN_CENTER;

		if (!opened)

		{

			NewLine();

			style.align = ALIGN_LEFT;

		}

		return;

	}

	if (istag("right"))

	{

		if (opened) style.align = ALIGN_RIGHT;

		if (!opened)

		{

			NewLine();

			style.align = ALIGN_LEFT;

		}

		return;

	}

	*/

	if (istag("h1")) || (istag("h2")) || (istag("h3")) || (istag("h4")) {

		NewLine();

		if (opened) && (stroka>1) NewLine();

		strcpy(#oldtag, #tag);

		if (opened)

		{

			if (isattr("align=")) && (isval("center")) style.align = ALIGN_CENTER;

			if (isattr("align=")) && (isval("right")) style.align = ALIGN_RIGHT;

			style.b = 1;

		}

		if (!opened)

		{

			style.align = ALIGN_LEFT;

			style.b = 0;

		}

		return;

	}

	else

		oldtag=NULL;

	if (istag("b")) || (istag("strong")) || (istag("big")) {

		style.b = opened;

		return;

	}

	if(istag("i")) || (istag("em")) || (istag("subtitle")) {

		style.i = opened;

		return;

	}

	if (istag("dt"))

	{

		style.li = opened;

		IF(opened == 0) return;

		NewLine();

		return;

	}

	if (istag("condition"))

	{

		condition_text_active = opened;

		if (opened) && (isattr("show_if=")) condition_text_val = atoi(#val);

		return;

	}

	if (istag("li")) || (istag("dt")) //íàäî ñäåëàòü âëîæåííûå ñïèñêè

	{

		style.li = opened;

		if (opened)

		{

			NewLine();

			if (stroka > -1) && (stroka - 2 < list.visible)

				DrawBuf.DrawBar(style.li_tab * 5 * list.font_w * DrawBuf.zoom + list.x, list.line_h / 2 - DrawBuf.zoom - DrawBuf.zoom, DrawBuf.zoom*2, DrawBuf.zoom*2, 0x555555);

		}

		return;

	}

	if (istag("u")) || (istag("ins")) style.u = opened;

	if (istag("s")) || (istag("strike")) || (istag("del")) style.s = opened;

	if (istag("ul")) || (istag("ol")) IF(!opened)

	{

		style.li = opened;

		style.li_tab--;

		NewLine();

	} ELSE style.li_tab++;

	if (istag("dd")) stolbec += 5;

	if (istag("blockquote")) style.blq = opened;

	if (istag("pre")) || (istag("code")) style.pre = opened;

	if (istag("hr"))

	{

		if (anchor) || (stroka < -1)

		{

			stroka+=2;

			return;

		}

		if (strcmp(#attr, "color=") == 0) hr_color = GetColor(#val); else hr_color = 0x999999;

		NewLine();

		DrawBuf.DrawBar(5, list.line_h/2, list.w-10, 1, hr_color);

		NewLine();

	}

	if (istag("img"))

	{

		ImgCache.Images( left1, top1, WB1.list.w);

		return;

	}

	if (istag("meta")) || (istag("?xml"))

	{

		do{

			if (isattr("charset=")) || (isattr("content=")) || (isattr("encoding="))

			{

				strcpy(#val, #val[strrchr(#val, '=')]); //ïîèñê â content=

				strlwr(#val);

				meta_encoding = CH_NULL;

				if (isval("utf-8"))             || (isval("utf8"))        meta_encoding = CH_UTF8;

				else if (isval("koi8-r"))       || (isval("koi8-u"))      meta_encoding = CH_KOI8;

				else if (isval("windows-1251")) || (isval("windows1251")) meta_encoding = CH_CP1251;

				else if (isval("windows-1252")) || (isval("windows1252")) meta_encoding = CH_CP1252;

				else if (isval("iso-8859-5"))   || (isval("iso8859-5"))   meta_encoding = CH_ISO8859_5;

				else if (isval("dos"))          || (isval("cp-866"))      meta_encoding = CH_CP866;

				if (cur_encoding==CH_NULL) BufEncode(meta_encoding);

				return;

			}

		} while(GetNextParam());

		return;

	}

}

void BufEncode(int set_new_encoding)

{

	int bufpointer_realsize;

	cur_encoding = set_new_encoding;

	if (o_bufpointer==0)

	{

		o_bufpointer = malloc(bufsize);

		strcpy(o_bufpointer, bufpointer);

	}

	else

	{

		strcpy(bufpointer, o_bufpointer);

	}

	if (set_new_encoding == CH_CP1251)

	{

		 bufpointer = ChangeCharset("CP1251", "UTF-8", bufpointer);

	}

}

void TWebBrowser::DrawScroller()

{

	scroll_wv.max_area = list.count;

	scroll_wv.cur_area = list.visible;

	scroll_wv.position = list.first;

	scroll_wv.all_redraw = 0;

	scroll_wv.start_x = list.x + list.w;

	scroll_wv.start_y = list.y;

	scroll_wv.size_y = list.h;

	scroll_wv.start_x = list.w * DrawBuf.zoom + list.x;

	scrollbar_v_draw(#scroll_wv);

}

void TWebBrowser::NewLine()

{

	int onleft, ontop;

	onleft = list.x + 5;

	ontop = stroka * list.line_h + list.y + 5;

	if (!stroka) DrawBar(list.x, list.y, draw_line_width, 5, bg_color);

	if (t_html) && (!t_body) return;

	if (stroka * list.line_h + 5 >= 0) && ( stroka + 1 * list.line_h + 5 < list.h) && (!anchor)

	{

		if (style.align == ALIGN_CENTER) && (DrawBuf.zoom==1) DrawBuf.AlignCenter(onleft,ontop,list.w,list.line_h,stolbec * list.font_w);

		if (style.align == ALIGN_RIGHT) && (DrawBuf.zoom==1)  DrawBuf.AlignRight(onleft,ontop,list.w,list.line_h,stolbec * list.font_w);

		DrawBuf.bufy = ontop;

		DrawBuf.Show();

		DrawBuf.Fill(bg_color);

	}

	stroka++;

	if (style.blq) stolbec = 6; else stolbec = 0;

	if (style.li) stolbec = style.li_tab * 5;

}

int istag(dword text) { if (!strcmp(#tag,text)) return 1; else return 0; }

int isattr(dword text) { if (!strcmp(#attr,text)) return 1; else return 0; }

int isval(dword text) { if (!strcmp(#val,text)) return 1; else return 0; }