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Rev | Author | Line No. | Line |
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8330 | leency | 1 | #include "TWB\colors.h" |
2 | #include "TWB\anchors.h" |
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3 | #include "TWB\parse_tag.h" |
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4 | #include "TWB\special.h" |
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5 | #include "TWB\tag_list.h" |
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8451 | leency | 6 | #define DEFAULT_BG_COL 0xffEBE8E9; |
7759 | leency | 7 | dword link_color_default; |
7757 | leency | 8 | dword link_color_active; |
8330 | leency | 9 | #include "TWB\links.h" |
4411 | leency | 10 | |
7759 | leency | 11 | #define BODY_MARGIN 6 |
8462 | leency | 12 | #define BASIC_CHAR_W 8 |
7759 | leency | 13 | #define BASIC_LINE_H 18 |
4416 | leency | 14 | |
7771 | leency | 15 | char line[500]; |
16 | |||
8439 | leency | 17 | struct STYLE { |
7752 | leency | 18 | bool |
6794 | leency | 19 | b, u, s, h, |
8016 | leency | 20 | font, |
5746 | leency | 21 | pre, |
22 | blq, |
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7742 | leency | 23 | button, |
7759 | leency | 24 | image; |
25 | LIST tag_list; |
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8439 | leency | 26 | dword title; |
8451 | leency | 27 | dword cur_line_h; |
8439 | leency | 28 | void reset(); |
5746 | leency | 29 | }; |
30 | |||
8439 | leency | 31 | void STYLE::reset() |
32 | { |
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33 | b = u = s = h = blq = pre = title = false; |
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34 | font = false; |
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8451 | leency | 35 | cur_line_h = NULL; |
8439 | leency | 36 | tag_list.reset(); |
37 | } |
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38 | |||
4411 | leency | 39 | struct TWebBrowser { |
4540 | leency | 40 | llist list; |
8439 | leency | 41 | STYLE style; |
8462 | leency | 42 | dword draw_y, draw_x, draw_w, left_gap; |
7752 | leency | 43 | dword o_bufpointer; |
7759 | leency | 44 | int cur_encoding, custom_encoding; |
45 | bool link, t_html, t_body; |
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46 | dword bufpointer; |
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47 | dword bufsize; |
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7945 | leency | 48 | dword is_html; |
8396 | leency | 49 | collection img_url; |
8439 | leency | 50 | char header[150]; |
51 | char redirect[URL_SIZE]; |
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7759 | leency | 52 | |
8462 | leency | 53 | void SetStyle(); |
54 | void Render(); |
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55 | bool RenderImage(); |
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56 | |||
7746 | leency | 57 | void SetPageDefaults(); |
7752 | leency | 58 | void AddCharToTheLine(); |
59 | void ParseHtml(); |
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7762 | leency | 60 | bool CheckForLineBreak(); |
61 | void NewLine(); |
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62 | void ChangeEncoding(); |
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4411 | leency | 63 | void DrawPage(); |
8439 | leency | 64 | |
65 | void tag_a(); |
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66 | void tag_p(); |
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67 | void tag_img(); |
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68 | void tag_div(); |
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69 | void tag_h1234_caption(); |
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70 | void tag_ol_ul_dt(); |
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71 | void tag_li(); |
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72 | void tag_q(); |
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73 | void tag_hr(); |
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74 | void tag_code(); |
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75 | void tag_meta_xml(); |
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76 | void tag_body(); |
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77 | void tag_iframe(); |
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78 | void tag_title(); |
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79 | void tag_font(); |
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8462 | leency | 80 | void tag_table(); |
81 | void tag_td(); |
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82 | void tag_tr(); |
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7759 | leency | 83 | }; |
4486 | leency | 84 | |
8462 | leency | 85 | #include "TWB\render.h" |
8439 | leency | 86 | #include "TWB\set_style.h" |
5747 | leency | 87 | //============================================================================================ |
7746 | leency | 88 | void TWebBrowser::SetPageDefaults() |
89 | { |
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8439 | leency | 90 | t_html = t_body = link = false; |
91 | style.reset(); |
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7759 | leency | 92 | link_color_default = 0x0000FF; |
4491 | leency | 93 | link_color_active = 0xFF0000; |
8454 | leency | 94 | style.cur_line_h = list.item_h; |
7970 | leency | 95 | links.clear(); |
7752 | leency | 96 | anchors.clear(); |
8396 | leency | 97 | img_url.drop(); |
8016 | leency | 98 | text_colors.drop(); |
99 | text_colors.add(0); |
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8451 | leency | 100 | bg_colors.drop(); |
101 | bg_colors.add(DEFAULT_BG_COL); |
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102 | canvas.Fill(0, DEFAULT_BG_COL); |
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7758 | leency | 103 | header = NULL; |
7759 | leency | 104 | cur_encoding = CH_CP866; |
105 | draw_y = BODY_MARGIN; |
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8462 | leency | 106 | draw_x = left_gap = BODY_MARGIN; |
107 | draw_w = list.w - BODY_MARGIN; |
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4411 | leency | 108 | line = 0; |
8302 | leency | 109 | redirect = '\0'; |
7757 | leency | 110 | //hold original buffer |
111 | if (o_bufpointer) o_bufpointer=free(o_bufpointer); |
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112 | o_bufpointer = malloc(bufsize); |
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113 | memmov(o_bufpointer, bufpointer, bufsize); |
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7759 | leency | 114 | if (custom_encoding != -1) { |
115 | cur_encoding = custom_encoding; |
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7781 | leency | 116 | bufpointer = ChangeCharset(cur_encoding, "CP866", bufpointer); |
7759 | leency | 117 | } |
8490 | leency | 118 | list.SetFont(8, 14, 10011000b); |
7746 | leency | 119 | } |
120 | //============================================================================================ |
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7759 | leency | 121 | void TWebBrowser::ParseHtml(dword _bufpointer, _bufsize){ |
7752 | leency | 122 | char unicode_symbol[10]; |
7746 | leency | 123 | dword j; |
7752 | leency | 124 | int tab_len; |
7746 | leency | 125 | dword bufpos; |
7759 | leency | 126 | bufsize = _bufsize; |
8439 | leency | 127 | |
8457 | leency | 128 | if (list.w!=canvas.bufw) canvas.Init(list.x, list.y, list.w, 400*20); |
129 | |||
7771 | leency | 130 | if (bufpointer != _bufpointer) { |
131 | bufpointer = malloc(bufsize); |
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132 | memmov(bufpointer, _bufpointer, bufsize); |
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133 | } else { |
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134 | custom_encoding = CH_CP866; |
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135 | } |
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7746 | leency | 136 | SetPageDefaults(); |
7945 | leency | 137 | is_html = true; |
138 | if (!strstri(bufpointer, " |
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7749 | leency | 139 | t_body = true; |
7991 | leency | 140 | if (!strstri(bufpointer, " |
7945 | leency | 141 | style.pre = true; //show linebreaks for a plaint text |
142 | is_html = false; |
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143 | } |
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7749 | leency | 144 | } |
5773 | leency | 145 | for (bufpos=bufpointer ; (bufpos < bufpointer+bufsize) && (ESBYTE[bufpos]!=0) ; bufpos++;) |
4411 | leency | 146 | { |
8330 | leency | 147 | switch (ESBYTE[bufpos]) |
4411 | leency | 148 | { |
149 | case 0x0a: |
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7752 | leency | 150 | if (style.pre) { |
8462 | leency | 151 | Render(); |
5781 | leency | 152 | NewLine(); |
7752 | leency | 153 | } else { |
8490 | leency | 154 | AddCharToTheLine(' '); |
4411 | leency | 155 | } |
7752 | leency | 156 | break; |
157 | case 0x09: |
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158 | if (style.pre) { |
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8462 | leency | 159 | tab_len = draw_x - left_gap / list.font_w + strlen(#line) % 4; |
7752 | leency | 160 | if (!tab_len) tab_len = 4; else tab_len = 4 - tab_len; |
4411 | leency | 161 | for (j=0; j |
7752 | leency | 162 | } else { |
8490 | leency | 163 | AddCharToTheLine(' '); |
4411 | leency | 164 | } |
7752 | leency | 165 | break; |
4411 | leency | 166 | case '&': // and so on |
8319 | leency | 167 | for (j=1, unicode_symbol=0; (ESBYTE[bufpos+j]<>';') && (!__isWhite(ESBYTE[bufpos+j])) && (j<8); j++) |
4411 | leency | 168 | { |
8410 | leency | 169 | chrcat(#unicode_symbol, ESBYTE[bufpos+j]); |
4411 | leency | 170 | } |
7771 | leency | 171 | if (GetUnicodeSymbol(#line, #unicode_symbol, sizeof(line)-1)) { |
7749 | leency | 172 | bufpos += j; |
7750 | leency | 173 | CheckForLineBreak(); |
7749 | leency | 174 | } else { |
7752 | leency | 175 | AddCharToTheLine('&'); |
7749 | leency | 176 | } |
4411 | leency | 177 | break; |
178 | case '<': |
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8330 | leency | 179 | if (!is_html) goto _DEFAULT; |
8490 | leency | 180 | if (!strchr("!/?abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ", ESBYTE[bufpos+1])) goto _DEFAULT; |
5749 | leency | 181 | bufpos++; |
8440 | leency | 182 | if (tag.parse(#bufpos, bufpointer + bufsize)) { |
7750 | leency | 183 | CheckForLineBreak(); |
8462 | leency | 184 | Render(); |
8439 | leency | 185 | $push cur_encoding |
186 | SetStyle(); |
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187 | $pop eax |
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188 | // The thing is that UTF if longer than other encodings. |
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189 | // So if encoding was changed from UTF to DOS than $bufpos position got wrong, |
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190 | // and we have to start parse from the very beginning |
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191 | if (EAX != cur_encoding) && (cur_encoding == CH_UTF8) { |
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192 | ParseHtml(bufpointer, bufsize); |
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193 | return; |
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8407 | leency | 194 | } |
7746 | leency | 195 | } |
4411 | leency | 196 | break; |
197 | default: |
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8330 | leency | 198 | _DEFAULT: |
7752 | leency | 199 | AddCharToTheLine(ESBYTE[bufpos]); |
4411 | leency | 200 | } |
201 | } |
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8462 | leency | 202 | Render(); |
5766 | leency | 203 | NewLine(); |
7752 | leency | 204 | list.count = draw_y; |
8425 | leency | 205 | |
8439 | leency | 206 | canvas.bufh = math.max(list.visible, draw_y); |
207 | buf_data = realloc(buf_data, canvas.bufh * canvas.bufw * 4 + 8); |
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8425 | leency | 208 | |
7755 | leency | 209 | list.CheckDoesValuesOkey(); |
210 | anchors.current = NULL; |
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7759 | leency | 211 | custom_encoding = -1; |
7758 | leency | 212 | if (!header) { |
7759 | leency | 213 | strncpy(#header, #version, sizeof(TWebBrowser.header)-1); |
7758 | leency | 214 | DrawTitle(#header); |
215 | } |
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4411 | leency | 216 | } |
5747 | leency | 217 | //============================================================================================ |
8444 | leency | 218 | void TWebBrowser::AddCharToTheLine(unsigned char _char) |
219 | { |
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220 | dword line_len; |
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221 | if (_char<=15) _char=' '; |
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222 | line_len = strlen(#line); |
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223 | if (!style.pre) && (_char == ' ') |
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224 | { |
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225 | if (line[line_len-1]==' ') return; //no double spaces |
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8462 | leency | 226 | if (draw_x==left_gap) && (!line) return; //no paces at the beginning of the line |
8444 | leency | 227 | if (link) && (line_len==0) return; |
228 | } |
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229 | if (line_len < sizeof(line)) chrcat(#line, _char); |
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230 | CheckForLineBreak(); |
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231 | } |
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232 | //============================================================================================ |
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7750 | leency | 233 | bool TWebBrowser::CheckForLineBreak() |
4718 | leency | 234 | { |
8457 | leency | 235 | int break_pos; |
236 | char next_line[4096]; |
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237 | int zoom = list.font_w / BASIC_CHAR_W; |
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7758 | leency | 238 | //Do we need a line break? |
8462 | leency | 239 | if (strlen(#line) * list.font_w + draw_x < draw_w) return false; |
7758 | leency | 240 | //Yes, we do. Lets calculate where... |
8457 | leency | 241 | break_pos = strrchr(#line, ' '); |
242 | |||
7758 | leency | 243 | //Is a new line fits in the current line? |
8462 | leency | 244 | if (break_pos * list.font_w + draw_x > draw_w) { |
245 | break_pos = draw_w - draw_x /list.font_w; |
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8457 | leency | 246 | while(break_pos) && (line[break_pos]!=' ') break_pos--; |
7750 | leency | 247 | } |
7758 | leency | 248 | //Maybe a new line is too big for the whole new line? Then we have to split it |
8457 | leency | 249 | if (!break_pos) && (style.tag_list.level*5 + strlen(#line) * zoom >= list.column_max) { |
8462 | leency | 250 | break_pos = draw_w - draw_x / list.font_w; |
7742 | leency | 251 | } |
8457 | leency | 252 | |
253 | strcpy(#next_line, #line + break_pos); |
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254 | line[break_pos] = 0x00; |
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7758 | leency | 255 | |
8462 | leency | 256 | Render(); |
7758 | leency | 257 | |
8457 | leency | 258 | strcpy(#line, #next_line); |
4718 | leency | 259 | NewLine(); |
7750 | leency | 260 | return true; |
4718 | leency | 261 | } |
5747 | leency | 262 | //============================================================================================ |
4692 | leency | 263 | void TWebBrowser::NewLine() |
4475 | leency | 264 | { |
8457 | leency | 265 | static bool empty_line = true; |
4692 | leency | 266 | |
8462 | leency | 267 | if (draw_x==left_gap) && (draw_y==BODY_MARGIN) return; |
8457 | leency | 268 | if (t_html) && (!t_body) return; |
7742 | leency | 269 | |
8462 | leency | 270 | if (draw_x == style.tag_list.level * 5 * list.font_w + left_gap) { |
8457 | leency | 271 | if (!empty_line) empty_line=true; else return; |
7742 | leency | 272 | } else { |
8457 | leency | 273 | empty_line = false; |
7742 | leency | 274 | } |
6794 | leency | 275 | |
8451 | leency | 276 | draw_y += style.cur_line_h; |
277 | style.cur_line_h = list.item_h; |
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8457 | leency | 278 | if (style.blq) draw_x = 6 * list.font_w; else draw_x = 0; |
8462 | leency | 279 | draw_x += style.tag_list.level * 5 * list.font_w + left_gap; |
4488 | leency | 280 | } |
5747 | leency | 281 | //============================================================================================ |
8444 | leency | 282 | void TWebBrowser::ChangeEncoding(int _new_encoding) |
283 | { |
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284 | if (cur_encoding == _new_encoding) return; |
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285 | cur_encoding = _new_encoding; |
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286 | bufpointer = ChangeCharset(cur_encoding, "CP866", bufpointer); |
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287 | if (header) { |
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288 | ChangeCharset(cur_encoding, "CP866", #header); |
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289 | DrawTitle(#header); |
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290 | } |
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291 | } |
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292 | //============================================================================================ |
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8439 | leency | 293 | scroll_bar scroll_wv = |
294 | { 15,NULL,NULL,NULL,0,2,NULL, |
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295 | 0,0,0xeeeeee,0xBBBbbb,0xeeeeee}; |
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296 | |||
5766 | leency | 297 | void TWebBrowser::DrawPage() |
298 | { |
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8457 | leency | 299 | if (list.w!=canvas.bufw) { |
300 | ParseHtml(bufpointer, bufsize); |
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301 | } |
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302 | canvas.Show(list.first, list.h); |
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303 | |||
8439 | leency | 304 | scroll_wv.max_area = list.count; |
305 | scroll_wv.cur_area = list.visible; |
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306 | scroll_wv.position = list.first; |
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307 | scroll_wv.all_redraw = 0; |
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308 | scroll_wv.start_x = list.x + list.w; |
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309 | scroll_wv.start_y = list.y; |
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310 | scroll_wv.size_y = list.h; |
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311 | |||
8490 | leency | 312 | if (list.count <= list.visible) { |
313 | DrawBar(scroll_wv.start_x, scroll_wv.start_y, scroll_wv.size_x, |
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314 | scroll_wv.size_y, bg_colors.get(0) & 0x00FFFFFF); |
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315 | } else { |
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316 | scrollbar_v_draw(#scroll_wv); |
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317 | } |
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5766 | leency | 318 | }=>>>=15)>': |