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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 } ;
struct _style {
byte
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b , u , s , h ,
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pre ,
blq ,
li ,
li_tab ,
align ;
} ;
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struct TWebBrowser {
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llist list ;
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_style style ;
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DrawBufer DrawBuf ;
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void Prepare ( ) ;
void SetStyle ( ) ;
void DrawStyle ( ) ;
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void DrawPage ( ) ;
void DrawScroller ( ) ;
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void LoadInternalPage ( ) ;
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void NewLine ( ) ;
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void Perenos ( ) ;
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void BufEncode ( ) ;
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} WB1 ;
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byte
link ,
ignor_text ,
cur_encoding ,
t_html ,
t_body ;
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dword bufpointer = 0 ;
dword o_bufpointer = 0 ;
dword bufsize = 0 ;
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dword text_colors [ 300 ] ;
dword text_color_index ;
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dword link_color_inactive ;
dword link_color_active ;
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dword bg_color ;
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int draw_y ;
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int stolbec ;
int tab_len ;
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int anchor_y ;
int body_magrin = 5 ;
int basic_line_h = 22 ;
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char URL [ 10000 ] ;
char header [ 2048 ] ;
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char line [ 500 ] ;
char tagparam [ 10000 ] ;
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char tag [ 100 ] ;
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char oldtag [ 100 ] ;
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char attr [ 1200 ] ;
char val [ 4096 ] ;
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char anchor [ 256 ] = 0 ;
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# include "..\TWB\absolute_url.h"
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# include "..\TWB\links.h"
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# include "..\TWB\colors.h"
# include "..\TWB\unicode_tags.h"
# include "..\TWB\img_cache.h"
# include "..\TWB\parce_tag.h"
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//============================================================================================
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void TWebBrowser : : DrawStyle ( )
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{
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int start_x , line_length , stolbec_len ;
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if ( ! header )
{
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ChangeCharset ( " UTF-8 " , " CP866 " , # line ) ;
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sprintf ( # header , " %s - %s " , # line , # version ) ;
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line = 0 ;
return ;
}
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if ( t_html ) & & ( ! t_body ) return ;
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if ( line ) & & ( ! anchor )
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{
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start_x = stolbec * list . font_w + body_magrin + list . x ;
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stolbec_len = strlen ( # line ) * DrawBuf . zoom ;
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line_length = stolbec_len * list . font_w ;
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WriteBufText ( start_x , draw_y , list . font_type , text_colors [ text_color_index ] , # line , buf_data ) ;
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 - DrawBuf . zoom + draw_y , line_length , DrawBuf . zoom , text_colors [ text_color_index ] ) ;
if ( style . u ) DrawBuf . DrawBar ( start_x , list . item_h - DrawBuf . zoom - DrawBuf . zoom + draw_y , line_length , DrawBuf . zoom , text_colors [ text_color_index ] ) ;
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if ( link ) {
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DrawBuf . DrawBar ( start_x , draw_y + list . item_h - calc ( DrawBuf . zoom * 2 ) , line_length , DrawBuf . zoom , text_colors [ text_color_index ] ) ;
PageLinks . AddText ( start_x , draw_y + list . y , line_length , list . item_h - calc ( DrawBuf . zoom * 2 ) , UNDERLINE , DrawBuf . zoom ) ; //TODO: set bigger underline_h for style.h
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}
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stolbec + = stolbec_len ;
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}
}
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//============================================================================================
void TWebBrowser : : LoadInternalPage ( dword bufpos , in_filesize ) {
bufsize = in_filesize ;
bufpointer = bufpos ;
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Prepare ( ) ;
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}
//============================================================================================
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void TWebBrowser : : Prepare ( ) {
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word bukva [ 2 ] ;
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int j ;
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byte ignor_param ;
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dword bufpos ;
int line_len ;
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style . b = style . u = style . s = style . h = style . blq = t_html = t_body =
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style . li = link = ignor_text = text_color_index = text_colors [ 0 ] = style . li_tab = 0 ;
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style . align = ALIGN_LEFT ;
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link_color_inactive = 0x0000FF ;
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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draw_y = body_magrin ;
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stolbec = 0 ;
line = 0 ;
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//for plaint text use CP866 for other UTF
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if ( strstri ( bufpointer , " html " ) ! = - 1 )
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{
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debugln ( " <html> found " ) ;
style . pre = false ;
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cur_encoding = CH_NULL ;
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}
else
{
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debugln ( " no <html> " ) ;
style . pre = true ;
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cur_encoding = CH_NULL ;
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}
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for ( bufpos = bufpointer ; ( bufpos < bufpointer + bufsize ) & & ( ESBYTE [ bufpos ] ! = 0 ) ; bufpos + + ; )
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{
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if ( ignor_text ) & & ( ESBYTE [ bufpos ] ! = ' < ' ) continue ;
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bukva = ESBYTE [ bufpos ] ;
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switch ( bukva )
{
case 0x0a :
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if ( style . pre )
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{
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DrawStyle ( ) ;
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line = NULL ;
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NewLine ( ) ;
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break ;
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}
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goto DEFAULT_MARK ;
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case ' \9 ' :
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if ( style . pre ) //otherwise go to 0x0d
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{
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tab_len = strlen ( # line ) % 4 ;
if ( ! tab_len ) tab_len = 4 ;
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for ( j = 0 ; j < tab_len ; j + + ; ) chrcat ( # line , ' ' ) ;
break ;
}
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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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if ( bukva = GetUnicodeSymbol ( ) ) goto DEFAULT_MARK ;
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break ;
case ' < ' :
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bufpos + + ;
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if ( ! strncmp ( bufpos , " !-- " , 3 ) )
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{
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if ( ! strncmp ( bufpos , " --> " , 3 ) ) | | ( bufpointer + bufsize < = bufpos ) break ;
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bufpos + + ;
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}
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tag = attr = tagparam = ignor_param = NULL ;
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while ( ESBYTE [ bufpos ] ! = ' > ' ) & & ( bufpos < bufpointer + bufsize ) //ïîëó÷àåì òåã è åãî ïàðàìåòðû
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{
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bukva = ESBYTE [ bufpos ] ;
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if ( bukva = = ' \9 ' ) | | ( bukva = = ' \x0a ' ) | | ( bukva = = ' \x0d ' ) bukva = ' ' ;
if ( ! ignor_param ) & & ( bukva < > ' ' )
{
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if ( strlen ( # tag ) + 1 < sizeof ( tag ) ) chrcat ( # tag , bukva ) ;
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}
else
{
ignor_param = true ;
if ( ! ignor_text ) & & ( strlen ( # tagparam ) + 1 < sizeof ( tagparam ) ) strcat ( # tagparam , # bukva ) ;
}
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bufpos + + ;
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}
strlwr ( # tag ) ;
if ( tag [ strlen ( # tag ) - 1 ] = = ' / ' ) tag [ strlen ( # tag ) - 1 ] = NULL ; //for br/
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if ( tagparam ) GetNextParam ( ) ;
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Perenos ( ) ;
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DrawStyle ( ) ;
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line = NULL ;
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if ( tag ) SetStyle ( ) ;
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strlcpy ( # oldtag , # tag , sizeof ( oldtag ) ) ;
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tag = attr = tagparam = ignor_param = NULL ;
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break ;
default :
DEFAULT_MARK :
if ( bukva < = 15 ) bukva = ' ' ;
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line_len = 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
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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Perenos ( ) ;
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}
}
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DrawStyle ( ) ;
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NewLine ( ) ;
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if ( list . first = = 0 ) list . count = draw_y ;
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DrawPage ( ) ;
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if ( anchor )
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{
anchor = NULL ;
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list . first = anchor_y ;
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Prepare ( ) ;
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}
}
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//============================================================================================
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void TWebBrowser : : Perenos ( )
{
int perenos_num ;
char new_line_text [ 4096 ] ;
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if ( strlen ( # line ) * DrawBuf . zoom + stolbec < list . column_max ) return ;
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perenos_num = strrchr ( # line , ' ' ) ;
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if ( ! perenos_num ) & & ( strlen ( # line ) * DrawBuf . zoom > list . column_max ) perenos_num = list . column_max / DrawBuf . zoom ;
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strcpy ( # new_line_text , # line + perenos_num ) ;
line [ perenos_num ] = 0x00 ;
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DrawStyle ( ) ;
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strcpy ( # line , # new_line_text ) ;
NewLine ( ) ;
}
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//============================================================================================
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void TWebBrowser : : SetStyle ( ) {
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int left1 = body_magrin + list . x ;
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byte opened ;
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byte meta_encoding ;
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if ( tag [ 0 ] = = ' / ' )
{
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opened = 0 ;
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strcpy ( # tag , # tag + 1 ) ;
}
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else opened = 1 ;
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if ( istag ( " html " ) ) {
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t_html = opened ;
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return ;
}
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if ( istag ( " script " ) ) | | ( istag ( " style " ) ) | | ( istag ( " binary " ) ) | | ( istag ( " select " ) ) { ignor_text = opened ; return ; }
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if ( istag ( " form " ) ) if ( ! opened ) ignor_text = false ;
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if ( istag ( " title " ) ) {
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if ( opened ) header = NULL ;
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else DrawTitle ( # header ) ;
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return ;
}
if ( ignor_text ) return ;
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IF ( istag ( " q " ) )
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{
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if ( opened ) strcat ( # line , " \" " ) ;
if ( ! opened ) strcat ( # line , " \" " ) ;
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return ;
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}
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if ( anchor ) if ( isattr ( " id= " ) ) | | ( isattr ( " name= " ) ) { //very bad: if the tag is not the last it wound work
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if ( ! strcmp ( # anchor , # val ) ) anchor_y = draw_y ;
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}
if ( istag ( " body " ) ) {
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t_body = opened ;
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do {
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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= " ) )
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{
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bg_color = GetColor ( # val ) ;
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DrawBuf . Fill ( bg_color ) ;
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}
} while ( GetNextParam ( ) ) ;
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if ( opened ) & & ( cur_encoding = = CH_NULL ) debugln ( " Document has no information about encoding, UTF will be used " ) ;
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return ;
}
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if ( istag ( " a " ) ) {
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if ( opened )
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{
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if ( link ) IF ( text_color_index > 0 ) text_color_index - - ; //åñëè ïðåäûäóùèé òåã à íå áûë çàêðûò
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do {
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if ( isattr ( " href= " ) ) & & ( ! strstr ( # val , " javascript: " ) )
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{
text_color_index + + ;
text_colors [ text_color_index ] = text_colors [ text_color_index - 1 ] ;
link = 1 ;
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text_colors [ text_color_index ] = link_color_inactive ;
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PageLinks . AddLink ( # val ) ;
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}
} while ( GetNextParam ( ) ) ;
}
else {
link = 0 ;
IF ( text_color_index > 0 ) text_color_index - - ;
}
return ;
}
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if ( istag ( " font " ) ) {
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if ( opened )
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{
text_color_index + + ;
text_colors [ text_color_index ] = text_colors [ text_color_index - 1 ] ;
do {
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if ( isattr ( " color= " ) ) text_colors [ text_color_index ] = GetColor ( # val ) ;
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} while ( GetNextParam ( ) ) ;
}
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else if ( text_color_index > 0 ) text_color_index - - ;
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return ;
}
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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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return ;
}
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if ( istag ( " p " ) ) {
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IF ( oldtag [ 0 ] = = ' h ' ) return ;
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NewLine ( ) ;
IF ( opened ) NewLine ( ) ;
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return ;
}
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if ( istag ( " br " ) ) { NewLine ( ) ; return ; }
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if ( istag ( " tr " ) ) { if ( opened ) NewLine ( ) ; return ; }
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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 ; }
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if ( istag ( " img " ) ) { ImgCache . Images ( left1 , draw_y , WB1 . list . w ) ; return ; }
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if ( istag ( " h1 " ) ) | | ( istag ( " h2 " ) ) | | ( istag ( " h3 " ) ) | | ( istag ( " h4 " ) ) | | ( istag ( " caption " ) ) {
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style . h = opened ;
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if ( opened )
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{
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NewLine ( ) ;
draw_y + = 10 ;
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WB1 . DrawBuf . zoom = 2 ;
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WB1 . list . font_type | = 10011001 b ;
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if ( isattr ( " align= " ) ) & & ( isval ( " center " ) ) style . align = ALIGN_CENTER ;
if ( isattr ( " align= " ) ) & & ( isval ( " right " ) ) style . align = ALIGN_RIGHT ;
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list . item_h = basic_line_h * 2 ;
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}
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else
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{
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NewLine ( ) ;
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WB1 . DrawBuf . zoom = 1 ;
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WB1 . list . font_type = 10011000 b ;
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style . align = ALIGN_LEFT ;
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list . item_h = basic_line_h ;
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}
return ;
}
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if ( istag ( " dt " ) ) {
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style . li = opened ;
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if ( opened ) NewLine ( ) ;
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return ;
}
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if ( istag ( " li " ) ) | | ( istag ( " dt " ) )
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{
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style . li = opened ;
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if ( opened )
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{
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NewLine ( ) ;
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DrawBuf . DrawBar ( style . li_tab * 5 * list . font_w * DrawBuf . zoom + list . x ,
list . item_h - calc ( DrawBuf . zoom * 2 ) / 2 + draw_y , DrawBuf . zoom * 2 , DrawBuf . zoom * 2 , 0x454545 ) ;
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}
return ;
}
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if ( istag ( " ul " ) ) | | ( istag ( " ol " ) ) {
if ( ! opened )
{
style . li = opened ;
style . li_tab - - ;
NewLine ( ) ;
}
else style . li_tab + + ;
}
if ( istag ( " hr " ) ) {
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if ( isattr ( " color= " ) ) EDI = GetColor ( # val ) ; else EDI = 0x999999 ;
$ push edi ;
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NewLine ( ) ;
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$ pop edi ;
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DrawBuf . DrawBar ( 5 , draw_y - 1 , list . w - 10 , 1 , EDI ) ;
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NewLine ( ) ;
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return ;
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}
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if ( istag ( " meta " ) ) | | ( istag ( " ?xml " ) ) {
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meta_encoding = CH_NULL ;
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do {
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if ( isattr ( " charset= " ) ) | | ( isattr ( " content= " ) ) | | ( isattr ( " encoding= " ) )
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{
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strcpy ( # val , # val [ strrchr ( # val , ' = ' ) ] ) ; //search in content=
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strlwr ( # val ) ;
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if ( isval ( " utf-8 " ) ) | | ( isval ( " utf8 " ) ) meta_encoding = CH_UTF8 ;
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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 ;
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}
} while ( GetNextParam ( ) ) ;
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if ( meta_encoding ! = CH_NULL ) BufEncode ( meta_encoding ) ;
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return ;
}
}
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void TWebBrowser : : BufEncode ( int set_new_encoding )
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{
int bufpointer_realsize ;
if ( o_bufpointer = = 0 )
{
o_bufpointer = malloc ( bufsize ) ;
strcpy ( o_bufpointer , bufpointer ) ;
}
else
{
strcpy ( bufpointer , o_bufpointer ) ;
}
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if ( cur_encoding ! = set_new_encoding ) {
cur_encoding = set_new_encoding ;
debugln ( charsets [ cur_encoding ] ) ;
bufpointer = ChangeCharset ( charsets [ cur_encoding ] , " CP866 " , bufpointer ) ;
}
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}
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//============================================================================================
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void TWebBrowser : : DrawScroller ( )
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{
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scroll_wv . max_area = list . count ;
scroll_wv . cur_area = list . visible ;
scroll_wv . position = list . first ;
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scroll_wv . all_redraw = 0 ;
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scroll_wv . start_x = list . x + list . w ;
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scroll_wv . start_y = list . y ;
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scroll_wv . size_y = list . h ;
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scroll_wv . start_x = list . w + list . x ;
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scrollbar_v_draw ( # scroll_wv ) ;
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}
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//============================================================================================
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void TWebBrowser : : NewLine ( )
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{
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int onleft , ontop ;
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if ( ! stolbec ) & & ( draw_y = = body_magrin ) return ;
onleft = list . x + body_magrin ;
ontop = draw_y + list . y ;
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if ( t_html ) & & ( ! t_body ) return ;
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draw_y + = list . item_h ;
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if ( style . blq ) stolbec = 6 ; else stolbec = 0 ;
if ( style . li ) stolbec = style . li_tab * 5 ;
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}
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//============================================================================================
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int istag ( dword text ) { if ( ! strcmp ( # tag , text ) ) return true ; else return false ; }
int isattr ( dword text ) { if ( ! strcmp ( # attr , text ) ) return true ; else return false ; }
int isval ( dword text ) { if ( ! strcmp ( # val , text ) ) return true ; else return false ; }
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//============================================================================================
void TWebBrowser : : DrawPage ( )
{
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PutPaletteImage ( list . first * DrawBuf . bufw * 4 + buf_data + 8 , DrawBuf . bufw , list . h , DrawBuf . bufx , DrawBuf . bufy , 32 , 0 ) ;
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DrawScroller ( ) ;
}
