Subversion Repositories Kolibri OS

byte

	b, u, s, h,

	pre,

	blq,

	li,

	li_tab,

	align;

};

	llist list;

	_style style;

	DrawBufer DrawBuf;

	int zoom;

	void Prepare();

	void SetStyle();

	void DrawStyle();

	void DrawPage();

	void DrawScroller();

	void LoadInternalPage();

	void NewLine();

	void Perenos();

	void BufEncode();

} WB1;

	link,

	ignor_text,

	cur_encoding,

	t_html,

	t_body;

dword o_bufpointer=0;

dword bufsize=0;

dword text_color_index;

dword link_color_inactive;

dword link_color_active;

dword bg_color;

int stolbec;

int tab_len;

int anchor_y;

int basic_line_h=22;

char header[2048];

char line[500];

char tagparam[10000];

char tag[100];

char oldtag[100];

char attr[1200];

char val[4096];

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

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

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

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

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

void TWebBrowser::DrawStyle()

{

	dword start_x, line_length, stolbec_len;

	{

		strcpy(#header, #line);

		line = 0;

		return;

	}

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

	{

		start_x = stolbec * list.font_w + body_magrin + list.x;

		stolbec_len = strlen(#line) * zoom;

		line_length = stolbec_len * list.font_w;

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

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

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

		if (link) {

			DrawBuf.DrawBar(start_x, draw_y + list.item_h - calc(zoom*2), line_length, zoom, text_colors[text_color_index]);

			PageLinks.AddText(start_x, draw_y + list.y, line_length, list.item_h - calc(zoom*2), UNDERLINE, zoom); //TODO: set bigger underline_h for style.h

		}

		stolbec += stolbec_len;

	}

}

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

void TWebBrowser::LoadInternalPage(dword bufpos, in_filesize){

	bufsize = in_filesize;

	bufpointer = bufpos;

	Prepare();

}

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

void TWebBrowser::Prepare(){

	word bukva[2];

	dword j;

	byte ignor_param;

	dword bufpos;

	dword line_len;

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

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

	style.align = ALIGN_LEFT;

	link_color_inactive = 0x0000FF;

	link_color_active = 0xFF0000;

	bg_color = 0xFFFFFF;

	DrawBuf.Fill(bg_color);

	PageLinks.Clear();

	strcpy(#header, #version);

	draw_y = body_magrin;

	stolbec = 0;

	line = 0;

	zoom = 1;

	//for plaint text use CP866 for other UTF

	if (strstri(bufpointer, "html")!=-1)

	{

		debugln(" found");

		style.pre = false;

		cur_encoding = CH_NULL;

	}

	else

	{

		debugln("no ");

		style.pre = true;

		cur_encoding = CH_NULL;

	}

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

	{

		if (ignor_text) && (ESBYTE[bufpos]!='<') continue;

		bukva = ESBYTE[bufpos];

		switch (bukva)

		{

		case 0x0a:

			if (style.pre)

			{

				DrawStyle();

				line = NULL;

				NewLine();

				break;

			}

			goto DEFAULT_MARK;

		case '\9':

			if (style.pre) //otherwise go to 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++;

			if (!strncmp(bufpos,"!--",3))

			{

				bufpos+=3;

				while (strncmp(bufpos,"-->",3)!=0) && (bufpos < bufpointer + bufsize)

				{

					bufpos++;

				}

				bufpos+=3;

				break;

			}

			tag = attr = tagparam = ignor_param = NULL;

			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)+1

				}

				else

				{

					ignor_param = true;

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

				}

				bufpos++;

			}

			strlwr(#tag);

			if (tagparam) GetNextParam();

			Perenos();

			DrawStyle();

			line = NULL;

			if (tag) SetStyle();

			strlcpy(#oldtag, #tag, sizeof(oldtag));

			tag = attr = tagparam = ignor_param = NULL;

			break;

		default:

			DEFAULT_MARK:

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

			line_len = 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);

			Perenos();

		}

	}

	DrawStyle();

	NewLine();

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

	DrawPage();

}

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

void TWebBrowser::Perenos()

{

	int perenos_num;

	char new_line_text[4096];

	if (strlen(#line)*zoom + stolbec < list.column_max) return;

	perenos_num = strrchr(#line, ' ');

	if (!perenos_num) && (strlen(#line)*zoom>list.column_max) perenos_num=list.column_max/zoom;

	strcpy(#new_line_text, #line + perenos_num);

	line[perenos_num] = 0x00;

	DrawStyle();

	strcpy(#line, #new_line_text);

	NewLine();

}

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

void TWebBrowser::SetStyle() {

	int left1 = body_magrin + list.x;

	byte opened;

	byte meta_encoding;

	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; return; }

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

	if(istag("title")) {

		if (opened) header=NULL;

		return;

	}

	if (ignor_text) return;

	{

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

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

		return;

	}

	//if (isattr("id=")) || (isattr("name=")) { //very bad: if the tag is not the last it wound work

		//add anchor

	//}

	if (istag("body")) {

		t_body = opened;

		do{

			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) {

			cur_encoding = CH_UTF8;

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

		}

		if (opened) {

			if (strcmp(#header, #version) != 0) {

				ChangeCharset(charsets[cur_encoding], "CP866", #header);

				sprintf(#header, "%s - %s", #header, #version);

			}

			DrawTitle(#header);

		}

		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=")) && (!strstr(#val,"javascript:"))

				{

					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);

				}

			} 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 (isattr("color=")) text_colors[text_color_index] = GetColor(#val);

			} while(GetNextParam());

		}

		else if (text_color_index > 0) text_color_index--;

		return;

	}

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

		IF(oldtag[0] != 'h') NewLine();

		return;

	}

	if (istag("p")) {

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

		NewLine();

		IF(opened) NewLine();

		return;

	}

	if (istag("br")) { NewLine(); return; }

	if (istag("tr")) { if (opened) NewLine(); return; }

	if (istag("b")) || (istag("strong")) || (istag("big")) { style.b = opened; return; }

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

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

	if (istag("dd")) { stolbec += 5; return; }

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

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

	if (istag("img")) { ImgCache.Images( left1, draw_y, WB1.list.w); return; }

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

		style.h = opened;

		if (opened)

		{

			NewLine();

			draw_y += 10;

			WB1.zoom=2;

			WB1.list.font_type |= 10011001b;

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

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

			list.item_h = basic_line_h * 2;

		}

		else

		{

			NewLine();

			WB1.zoom=1;

			WB1.list.font_type = 10011000b;

			style.align = ALIGN_LEFT;

			list.item_h = basic_line_h;

		}

		return;

	}

	if (istag("dt")) {

		style.li = opened;

		if (opened) NewLine();

		return;

	}

	if (istag("li")) || (istag("dt"))

	{

		style.li = opened;

		if (opened)

		{

			NewLine();

			strcpy(#line, "\31 \0");

		}

		return;

	}

	if (istag("ul")) || (istag("ol")) {

		if (!opened)

		{

			style.li = opened;

			style.li_tab--;

			NewLine();

		}

		else style.li_tab++;

	}

	if (istag("hr")) {

		if (isattr("color=")) EDI = GetColor(#val); else EDI = 0x999999;

		$push edi;

		NewLine();

		$pop edi;

		DrawBuf.DrawBar(5, draw_y - 1, list.w-10, 1, EDI);

		NewLine();

		return;

	}

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

		meta_encoding = CH_NULL;

		do{

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

			{

				strcpy(#val, #val[strrchr(#val, '=')]); //search in content=

				strlwr(#val);

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

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

			}

		} while(GetNextParam());

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

		return;

	}

}

{

	if (cur_encoding == set_new_encoding) return;

	if (o_bufpointer==0)

	{

		o_bufpointer = malloc(bufsize);

		strcpy(o_bufpointer, bufpointer);

	}

	else

	{

		strcpy(bufpointer, o_bufpointer);

	}

	debugval("cur_encoding    ", cur_encoding);

	debugval("set_new_encoding", set_new_encoding);

	cur_encoding = set_new_encoding;

	bufpointer = ChangeCharset(charsets[cur_encoding], "CP866", 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;

	scrollbar_v_draw(#scroll_wv);

}

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

void TWebBrowser::NewLine()

{

	dword onleft, ontop;

	ontop = draw_y + list.y;

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

	draw_y += list.item_h;

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

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

}

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

bool istag(dword text) { if (!strcmp(#tag,text)) return true; else return false; }

bool isattr(dword text) { if (!strcmp(#attr,text)) return true; else return false; }

bool isval(dword text) { if (!strcmp(#val,text)) return true; else return false; }

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

void TWebBrowser::DrawPage()

{

	PutPaletteImage(list.first * DrawBuf.bufw * 4 + buf_data+8, DrawBuf.bufw, list.h, DrawBuf.bufx, DrawBuf.bufy, 32, 0);

	DrawScroller();

}

>