forked from KolibriOS/kolibrios
648 lines
16 KiB
C
648 lines
16 KiB
C
dword bufpointer;
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dword o_bufpointer;
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dword bufsize;
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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};
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enum { ALIGN_LEFT, ALIGN_CENTER, ALIGN_RIGHT};
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struct _style {
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byte
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b, i, u, s,
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pre,
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blq,
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li,
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li_tab,
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align;
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};
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struct TWebBrowser {
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llist list;
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_style style;
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dword draw_line_width;
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DrawBufer DrawBuf;
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void Parse();
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void SetTextStyle();
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void DrawPage();
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void DrawScroller();
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void NewLine();
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void Perenos();
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byte end_parsing;
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} WB1;
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byte
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link,
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ignor_text,
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cur_encoding,
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t_html,
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t_body;
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/*
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struct _condition {
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byte
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text_active,
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text_val,
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href,
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max
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} condition;
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*/
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byte condition_text_active, condition_text_val, condition_href, condition_max;
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dword text_colors[300];
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dword text_color_index;
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dword link_color_inactive;
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dword link_color_active;
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dword bg_color;
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int stroka;
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int stolbec;
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int tab_len;
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int anchor_line_num;
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char URL[10000];
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char header[2048];
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char line[500];
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char tagparam[10000];
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char tag[100];
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char attr[1200];
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char val[4096];
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char anchor[256];
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#include "..\TWB\history.h"
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#include "..\TWB\links.h"
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#include "..\TWB\colors.h"
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#include "..\TWB\unicode_tags.h"
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#include "..\TWB\img_cache.h"
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#include "..\TWB\parce_tag.h"
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#include "..\TWB\table.h"
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//=======================================================================
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void TWebBrowser::DrawPage()
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{
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int start_x, start_y, line_length, stolbec_len, magrin_left=5;
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if (!header)
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{
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ChangeCharset("UTF-8", "CP866", #line);
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strcpy(#header, #line);
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strcat(#header, " -");
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strcat(#header, #version);
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line = 0;
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return;
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}
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if (t_html) && (!t_body) return;
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if (stroka >= 0) && (stroka - 2 < list.visible) && (line) && (!anchor)
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{
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start_x = stolbec * list.font_w + magrin_left * DrawBuf.zoom + list.x;
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start_y = stroka * list.line_h + magrin_left + list.y;
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stolbec_len = utf8_strlen(#line);
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line_length = stolbec_len * list.font_w * DrawBuf.zoom;
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WriteBufText(start_x, 0, list.font_type, text_colors[text_color_index], #line, buf_data);
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if (style.b) WriteBufText(start_x+1, 0, list.font_type, text_colors[text_color_index], #line, buf_data);
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if (style.i) { stolbec++; DrawBuf.Skew(start_x, 0, line_length, list.line_h); } // bug with zoom>1
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if (style.s) DrawBuf.DrawBar(start_x, list.line_h / 2 - DrawBuf.zoom, line_length, DrawBuf.zoom, text_colors[text_color_index]);
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if (style.u) DrawBuf.DrawBar(start_x, list.line_h - DrawBuf.zoom - DrawBuf.zoom, line_length, DrawBuf.zoom, text_colors[text_color_index]);
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if (link) {
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DrawBuf.DrawBar(start_x, list.line_h - DrawBuf.zoom - DrawBuf.zoom, line_length, DrawBuf.zoom, text_colors[text_color_index]);
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UnsafeDefineButton(start_x-2, start_y-1, line_length + 3, DrawBuf.zoom * list.font_h, PageLinks.count + 400 + BT_HIDE, 0xB5BFC9);
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PageLinks.AddText(#line, line_length, list.line_h, UNDERLINE);
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}
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stolbec += stolbec_len;
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}
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}
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//=======================================================================
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void TWebBrowser::Parse(){
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word bukva[2];
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int j;
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byte ignor_param;
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char temp[768];
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dword bufpos = bufpointer;
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int line_len;
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style.b = style.i = style.u = style.s = style.blq = t_html = t_body =
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style.li = link = ignor_text = text_color_index = text_colors[0] =
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style.li_tab = condition_text_val = condition_text_active = 0; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
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end_parsing = false;
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condition_max = 255;
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style.align = ALIGN_LEFT;
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link_color_inactive = 0x0000FF;
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link_color_active = 0xFF0000;
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bg_color = 0xFFFFFF;
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DrawBuf.Fill(bg_color);
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PageLinks.Clear();
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strcpy(#header, #version);
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stroka = -list.first;
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stolbec = 0;
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line = 0;
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draw_line_width = list.w * DrawBuf.zoom;
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style.pre = 1;
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if (strstri(bufpointer, "html")) style.pre = 0;
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for ( ; (bufpointer+bufsize > bufpos) && (ESBYTE[bufpos]!=0); bufpos++;)
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{
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if (end_parsing) break;
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bukva = ESBYTE[bufpos];
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if (ignor_text) && (bukva!='<') continue;
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if (condition_text_active) && (condition_text_val != condition_href) && (bukva!='<') continue;
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switch (bukva)
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{
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case 0x0a:
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if (style.pre)
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{
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chrcat(#line, ' ');
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bukva = temp = NULL;
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Perenos();
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break;
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}
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case '\9':
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if (style.pre) //<2F><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><> 0x0d
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{
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tab_len = strlen(#line) % 4;
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if (!tab_len) tab_len = 4;
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for (j=0; j<tab_len; j++;) chrcat(#line,' ');
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break;
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}
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goto DEFAULT_MARK;
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case '&': // and so on
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bufpos++;
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tag=0;
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for (j=0; (ESBYTE[bufpos]<>';') && (j<7); j++, bufpos++;)
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{
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bukva = ESBYTE[bufpos];
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chrcat(#tag, bukva);
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}
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if (bukva = GetUnicodeSymbol()) goto DEFAULT_MARK;
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break;
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case '<':
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bufpos++; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <
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tag = attr = tagparam = ignor_param = NULL;
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if (ESBYTE[bufpos] == '!') //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <!-- -->, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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{
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bufpos++;
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if (ESBYTE[bufpos] == '-')
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{
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HH_:
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do
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{
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bufpos++;
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if (bufpointer + bufsize <= bufpos) break 2;
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}
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while (ESBYTE[bufpos] <>'-');
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bufpos++;
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if (ESBYTE[bufpos] <>'-') goto HH_;
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}
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}
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while (ESBYTE[bufpos] !='>') && (bufpos < bufpointer + bufsize) //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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{
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bukva = ESBYTE[bufpos];
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if (bukva == '\9') || (bukva == '\x0a') || (bukva == '\x0d') bukva = ' ';
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if (!ignor_param) && (bukva <>' ')
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{
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if (strlen(#tag)<sizeof(tag)) chrcat(#tag, bukva);
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}
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else
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{
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ignor_param = true;
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if (!ignor_text) && (strlen(#tagparam)+1<sizeof(tagparam)) strcat(#tagparam, #bukva);
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}
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bufpos++;
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}
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strlwr(#tag);
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if (condition_text_active) && (condition_text_val != condition_href)
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{
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if (strcmp(#tag, "/condition")!=0) break;
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}
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if (tag[strlen(#tag)-1]=='/') tag[strlen(#tag)-1]=NULL; //for br/
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if (tagparam) GetNextParam();
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if (stolbec + utf8_strlen(#line) > list.column_max) Perenos();
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DrawPage();
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line = NULL;
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if (tag) SetTextStyle(WB1.DrawBuf.zoom * 5 + list.x, stroka * list.line_h + list.y + 5); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
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tag = attr = tagparam = ignor_param = NULL;
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break;
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default:
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DEFAULT_MARK:
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if (bukva<=15) bukva=' ';
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line_len = utf8_strlen(#line);
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if (!style.pre) && (bukva == ' ')
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{
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if (line[line_len-1]==' ') break; //no double spaces
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if (!stolbec) && (!line) break; //no paces at the beginning of the line
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}
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if (line_len < sizeof(line)) chrcat(#line, bukva);
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if (stolbec + line_len > list.column_max) Perenos();
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}
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}
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DrawPage();
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NewLine();
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DrawBar(list.x, stroka * list.line_h + list.y + 5, draw_line_width, -stroka * list.line_h + list.h - 5, bg_color);
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DrawBar(list.x, list.visible * list.line_h + list.y + 4, draw_line_width, -list.visible * list.line_h + list.h - 4, bg_color);
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if (list.first == 0) list.count = stroka;
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if (anchor) //<2F><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
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{
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anchor=NULL;
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list.first=anchor_line_num;
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Parse();
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}
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DrawScroller();
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}
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void TWebBrowser::Perenos()
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{
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int perenos_num;
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char new_line_text[4096];
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perenos_num = strrchr(#line, ' ');
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if (!perenos_num) && (utf8_strlen(#line)>list.column_max) perenos_num=list.column_max;
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strcpy(#new_line_text, #line + perenos_num);
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line[perenos_num] = 0x00;
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if (stroka-1 > list.visible) && (list.first <>0) end_parsing=true;
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DrawPage();
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strcpy(#line, #new_line_text);
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NewLine();
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}
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char oldtag[100];
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void TWebBrowser::SetTextStyle(int left1, top1) {
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dword hr_color;
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byte opened;
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byte meta_encoding;
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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if (tag[0] == '/')
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{
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opened = 0;
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strcpy(#tag, #tag+1);
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}
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else opened = 1;
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if (istag("html"))
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{
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t_html = opened;
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return;
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}
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if (istag("script")) || (istag("style")) || (istag("binary")) || (istag("select")) ignor_text = opened;
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if (istag("form")) if (!opened) ignor_text = false;
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if(istag("title"))
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{
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if (opened) header=NULL;
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else if (!stroka) DrawTitle(#header); //<2F><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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return;
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}
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if (ignor_text) return;
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IF(istag("q"))
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{
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if (opened) strcat(#line, " \"");
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if (!opened) strcat(#line, "\" ");
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}
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if (anchor) && (isattr("id=")) //<2F><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>!!! <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>
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{
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if (!strcmp(#anchor, #val)) anchor_line_num=list.first+stroka;
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}
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if (istag("body"))
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{
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t_body = opened;
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do{
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if (isattr("condition_max=")) condition_max = atoi(#val);
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if (isattr("link=")) link_color_inactive = GetColor(#val);
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if (isattr("alink=")) link_color_active = GetColor(#val);
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if (isattr("text=")) text_colors[0]=GetColor(#val);
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if (isattr("bgcolor="))
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{
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bg_color=GetColor(#val);
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DrawBuf.Fill(bg_color);
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}
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} while(GetNextParam());
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if (opened) && (cur_encoding==CH_NULL)
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{
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debugln("Document has no information about encoding, UTF will be used");
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//BufEncode(CH_UTF8);
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}
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return;
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}
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if (istag("a"))
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{
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if (opened)
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{
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if (link) IF(text_color_index > 0) text_color_index--; //<2F><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20> <20><> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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do{
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if (isattr("href="))
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{
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if (stroka - 1 > list.visible) || (stroka < -2) return;
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text_color_index++;
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text_colors[text_color_index] = text_colors[text_color_index-1];
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link = 1;
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text_colors[text_color_index] = link_color_inactive;
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PageLinks.AddLink(#val, DrawBuf.zoom * stolbec * list.font_w + left1, top1-DrawBuf.zoom);
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}
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if (anchor) && (isattr("name="))
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{
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if (!strcmp(#anchor, #val))
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{
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anchor_line_num=list.first+stroka;
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}
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}
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} while(GetNextParam());
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}
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else {
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link = 0;
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IF(text_color_index > 0) text_color_index--;
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}
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return;
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}
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if (istag("font"))
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{
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if (opened)
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{
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text_color_index++;
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text_colors[text_color_index] = text_colors[text_color_index-1];
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do{
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if (strcmp(#attr, "color=") == 0) //&& (attr[1] == '#')
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{
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text_colors[text_color_index] = GetColor(#val);
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}
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} while(GetNextParam());
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}
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else
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if (text_color_index > 0) text_color_index--;
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return;
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}
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if (istag("br")) {
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NewLine();
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return;
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}
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if (istag("div")) || (istag("header")) || (istag("article")) || (istag("footer")) {
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IF(oldtag[0] <>'h') NewLine();
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if (isattr("bgcolor="))
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{
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bg_color=GetColor(#val);
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DrawBuf.Fill(bg_color);
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}
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return;
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}
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if (istag("p")) {
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IF(oldtag[0] == 'h') return;
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NewLine();
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IF(opened) NewLine();
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return;
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}
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if(istag("table")) {
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table.active = opened;
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NewLine();
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if (opened) table.NewTable();
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}
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if(istag("td")) {
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if (opened)
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{
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table.cur_col++;
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table.row_h = 0;
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do {
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if (isattr("width="))
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{
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table.col_w[table.cur_col] = atoi(#val);
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// NewLine();
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// strcpy(#line, #val);
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// NewLine();
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}
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} while(GetNextParam());
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}
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else
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{
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if (table.row_h > table.row_max_h) table.row_max_h = table.row_h;
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}
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}
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if(istag("tr")) {
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if (opened)
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{
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table.cur_col = 0;
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table.row_max_h = 0;
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table.row_start = stroka;
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}
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else
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{
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NewLine();
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if (table.cur_row == 0) table.max_cols = table.cur_col;
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table.cur_row++;
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table.max_cols = table.cur_col;
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}
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}
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/*
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if (istag("center"))
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{
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if (opened) style.align = ALIGN_CENTER;
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if (!opened)
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{
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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")) //<2F><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
{
|
||
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, '=')]); //<2F><><EFBFBD><EFBFBD><EFBFBD> <20> 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; }
|
||
|