Subversion Repositories Kolibri OS

bool

	b, u, s, h,

	pre,

	blq,

	li,

	li_tab,

	button,

	image,

	align;

dword

	bg_color;

};

	llist list;

	_style style;

	DrawBufer DrawBuf;

	int zoom;

	bool opened; //is this a "start tag" or "end tag"

	void SetPageDefaults();

	void Prepare();

	void SetStyle();

	void DrawStyle();

	void DrawPage();

	void DrawScroller();

	void NewLine();

	bool CheckForLineBreak();

	void BufEncode();

} WB1;

	link,

	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 page_bg;

int stolbec;

int tab_len;

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\anchors.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;

			DrawBuf.DrawBar(start_x, draw_y, line_length, list.item_h, 0xDDDddd);

		}

			DrawBuf.DrawBar(start_x, draw_y, line_length, list.item_h, style.bg_color);

		}

			DrawBuf.DrawBar(start_x, draw_y, line_length, list.item_h-1, 0xF9DBCB);

		}

		if (style.button) {

			DrawBuf.DrawBar(start_x, draw_y, line_length, list.item_h - calc(zoom*2), 0xCCCccc);

			DrawBuf.DrawBar(start_x, draw_y + list.item_h - calc(zoom*2), line_length, zoom, 0x999999);

		}

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

		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) {

			if (line[0]==' ') && (line[1]==NULL) {} else {

				DrawBuf.DrawBar(start_x, draw_y + list.item_h - calc(zoom*2), line_length, zoom, link_color_inactive);

				PageLinks.AddText(start_x, draw_y + list.y, line_length, list.item_h - calc(zoom*2), UNDERLINE, zoom);

			}

		}

		stolbec += stolbec_len;

		if (debug_mode) debug(#line);

		line = NULL;

	}

}

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

void TWebBrowser::SetPageDefaults()

{

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

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

	style.align = ALIGN_LEFT;

	link_color_inactive = 0x0000FF;

	link_color_active = 0xFF0000;

	page_bg = 0xFFFFFF;

	style.bg_color = page_bg;

	DrawBuf.Fill(0, page_bg);

	PageLinks.Clear();

	strcpy(#header, #version);

	cur_encoding = CH_NULL;

	draw_y = body_magrin;

	stolbec = 0;

	line = 0;

	zoom = 1;

}

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

void TWebBrowser::Prepare(){

	word bukva[2];

	dword j;

	bool ignor_param;

	dword bufpos;

	dword line_len;

	SetPageDefaults();

	if (strstri(bufpointer, "

		t_body = true;

		if (strstri(bufpointer, "

	}

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

	{

		bukva = ESBYTE[bufpos];

		switch (bukva)

		{

		case 0x0a:

			if (style.pre)

			{

				DrawStyle();

				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

			for (j=1, tag=0; (ESBYTE[bufpos+j]<>';') && (j<8); j++)

			{

				bukva = ESBYTE[bufpos+j];

				chrcat(#tag, bukva);

			}

			if (bukva = GetUnicodeSymbol(#tag)) {

				bufpos += j;

				CheckForLineBreak();

			} else {

				bukva = '&';

				goto DEFAULT_MARK;

			}

			break;

		case '<':

			bufpos++;

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

			{

				bufpos+=3;

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

				{

					bufpos++;

				}

				bufpos+=2;

				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 (strlen(#tagparam)+1

					//	chrncat(#tagparam, bukva, sizeof(tagparam)-1);

				}

				bufpos++;

			}

			strlwr(#tag);

			if (istag("script")) || (istag("style")) || (istag("binary")) || (istag("select"))  {

				sprintf(#tagparam, "", #tag);

				j = strstri(bufpos, #tagparam);

				if (j!=-1) {

					bufpos = j-1;

				}

				tag = tagparam = NULL;

				break;

			}

			if (tagparam) GetNextParam();

			{

				 opened = 0;

				 strcpy(#tag, #tag+1);

			}

			else opened = 1;

				CheckForLineBreak();

				DrawStyle();

				if (tag) SetStyle();

			}

			strlcpy(#oldtag, #tag, sizeof(oldtag)-1);

			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);

			CheckForLineBreak();

		}

	}

	DrawStyle();

	NewLine();

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

	DrawPage();

}

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

bool TWebBrowser::CheckForLineBreak()

{

	int line_break_pos;

	char new_line_text[4096];

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

	line_break_pos = strrchr(#line, ' ');

	if (line_break_pos*zoom + stolbec > list.column_max) {

		line_break_pos = list.column_max/zoom - stolbec;

		while(line_break_pos) && (line[line_break_pos]!=' ') line_break_pos--;

	}

	if (!line_break_pos) && (strlen(#line)*zoom>list.column_max) {

		line_break_pos=list.column_max/zoom;

		if (!stolbec)&&(style.pre) draw_y-=list.item_h; //hack to fix https://prnt.sc/rk3kyt

	}

	strcpy(#new_line_text, #line + line_break_pos);

	line[line_break_pos] = 0x00;

	DrawStyle();

	strcpy(#line, #new_line_text);

	NewLine();

	//if (strlen(#line)*zoom + stolbec > list.column_max)CheckForLineBreak();

	return true;

}

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

void TWebBrowser::SetStyle() {

	char img_path[4096]=0;

	int left1 = body_magrin + list.x;

	int meta_encoding;

	if (istag("html")) {

		t_html = opened;

		return;

	}

	if(istag("title")) {

		if (opened) header=NULL;

		return;

	}

	{

		if (opened)	{

			meta_encoding = strlen(#line);

			if (line[meta_encoding-1] != ' ') chrcat(#line, ' ');

			chrcat(#line, '\"');

		}

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

		return;

	}

	if (isattr("id=")) || (isattr("name=")) { // TO FIX: works only if the param is the last

		anchors.add(#val, draw_y);

	}

	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="))

			{

				style.bg_color = page_bg = GetColor(#val);

				DrawBuf.Fill(0, page_bg);

			}

		} while(GetNextParam());

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

			cur_encoding = CH_CP866;

			//BufEncode(CH_UTF8);

			debugln("Document has no information about encoding!");

		}

		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")) {

		style.bg_color = page_bg;

		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);

				if (isattr("bg=")) style.bg_color = GetColor(#val);

			} while(GetNextParam());

		}

		else if (text_color_index > 0) text_color_index--;

		return;

	}

	if (istag("div")) {

		if (streq(#oldtag,"div")) && (opened) return;

		NewLine();

		//IF (oldtag[0] != 'h')

		return;

	}

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

		NewLine();

		return;

	}

	if (istag("p")) {

		IF (oldtag[0] == 'h') || (streq(#oldtag,"td")) || (streq(#oldtag,"p")) 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("button")) { style.button = opened; stolbec++; 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")) {

		do{

			if (isattr("src=")) strlcpy(#img_path, #val, sizeof(img_path)-1);

			if (isattr("title=")) && (strlen(#val)

			if (isattr("alt=")) && (strlen(#val)

		} while(GetNextParam());

		if (!img_path) { line=0; return; }

		style.image = true;

		text_color_index++;

		text_colors[text_color_index] = 0x9A6F29;

		if (!line) {

			if (!strncmp(#img_path, "data:", 5)) img_path=0;

			replace_char(#img_path, '?', NULL, strlen(#img_path));

			sprintf(#line, "[%s]", #img_path+strrchr(#img_path, '/'));

			line[50]= NULL;

		}

		while (CheckForLineBreak()) {};

		DrawStyle();

		text_color_index--;

		style.image = false;

		//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;

			if (istag("h1")) style.b = true;

		}

		else

		{

			if (istag("h1")) style.b = false;

			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();

			stolbec = style.li_tab * 5 - 2;

			strcpy(#line, "\31 ");

			//stolbec-=2;

		}

		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;

		draw_y += 10;

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

		NewLine();

		draw_y += 10;

		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;

	}

}

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

void TWebBrowser::BufEncode(dword set_new_encoding)

{

	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;

	static int empty_line=0;

		if (empty_line<1) empty_line++;

		else return;

	} else if (!stolbec) {

		if (empty_line<1) empty_line++;

		else return;

	} else {

		empty_line=0;

	}

	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;

	if (debug_mode) debugln(NULL);

}

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

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();

}

>