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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 | |
8439 | leency | 15 | struct STYLE { |
7752 | leency | 16 | bool |
6794 | leency | 17 | b, u, s, h, |
8016 | leency | 18 | font, |
5746 | leency | 19 | pre, |
20 | blq, |
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7742 | leency | 21 | button, |
7759 | leency | 22 | image; |
23 | LIST tag_list; |
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8439 | leency | 24 | dword title; |
8451 | leency | 25 | dword cur_line_h; |
8439 | leency | 26 | void reset(); |
5746 | leency | 27 | }; |
28 | |||
8439 | leency | 29 | void STYLE::reset() |
30 | { |
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31 | b = u = s = h = blq = pre = title = false; |
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32 | font = false; |
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8451 | leency | 33 | cur_line_h = NULL; |
8439 | leency | 34 | tag_list.reset(); |
35 | } |
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36 | |||
4411 | leency | 37 | struct TWebBrowser { |
4540 | leency | 38 | llist list; |
8439 | leency | 39 | STYLE style; |
8462 | leency | 40 | dword draw_y, draw_x, draw_w, left_gap; |
7752 | leency | 41 | dword o_bufpointer; |
7759 | leency | 42 | int cur_encoding, custom_encoding; |
43 | bool link, t_html, t_body; |
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44 | dword bufpointer; |
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45 | dword bufsize; |
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7945 | leency | 46 | dword is_html; |
8396 | leency | 47 | collection img_url; |
8439 | leency | 48 | char header[150]; |
8491 | leency | 49 | char line[500]; |
8439 | leency | 50 | char redirect[URL_SIZE]; |
7759 | leency | 51 | |
8462 | leency | 52 | void SetStyle(); |
8491 | leency | 53 | void RenderTextbuf(); |
54 | void RenderLine(); |
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8462 | leency | 55 | bool RenderImage(); |
56 | |||
7746 | leency | 57 | void SetPageDefaults(); |
7752 | leency | 58 | void ParseHtml(); |
7762 | leency | 59 | void NewLine(); |
60 | void ChangeEncoding(); |
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8491 | leency | 61 | void AddCharToTheLine(); |
4411 | leency | 62 | void DrawPage(); |
8439 | leency | 63 | |
64 | void tag_a(); |
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65 | void tag_p(); |
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66 | void tag_img(); |
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67 | void tag_div(); |
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68 | void tag_h1234_caption(); |
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69 | void tag_ol_ul_dt(); |
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70 | void tag_li(); |
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71 | void tag_q(); |
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72 | void tag_hr(); |
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73 | void tag_code(); |
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74 | void tag_meta_xml(); |
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75 | void tag_body(); |
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76 | void tag_iframe(); |
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77 | void tag_title(); |
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78 | void tag_font(); |
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8462 | leency | 79 | void tag_table(); |
80 | void tag_td(); |
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81 | void tag_tr(); |
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7759 | leency | 82 | }; |
4486 | leency | 83 | |
8462 | leency | 84 | #include "TWB\render.h" |
8439 | leency | 85 | #include "TWB\set_style.h" |
5747 | leency | 86 | //============================================================================================ |
7746 | leency | 87 | void TWebBrowser::SetPageDefaults() |
88 | { |
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8439 | leency | 89 | t_html = t_body = link = false; |
90 | style.reset(); |
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7759 | leency | 91 | link_color_default = 0x0000FF; |
4491 | leency | 92 | link_color_active = 0xFF0000; |
8454 | leency | 93 | style.cur_line_h = list.item_h; |
7970 | leency | 94 | links.clear(); |
7752 | leency | 95 | anchors.clear(); |
8396 | leency | 96 | img_url.drop(); |
8016 | leency | 97 | text_colors.drop(); |
98 | text_colors.add(0); |
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8451 | leency | 99 | bg_colors.drop(); |
100 | bg_colors.add(DEFAULT_BG_COL); |
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101 | canvas.Fill(0, DEFAULT_BG_COL); |
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7758 | leency | 102 | header = NULL; |
7759 | leency | 103 | cur_encoding = CH_CP866; |
104 | draw_y = BODY_MARGIN; |
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8462 | leency | 105 | draw_x = left_gap = BODY_MARGIN; |
106 | draw_w = list.w - BODY_MARGIN; |
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4411 | leency | 107 | line = 0; |
8302 | leency | 108 | redirect = '\0'; |
7757 | leency | 109 | //hold original buffer |
110 | if (o_bufpointer) o_bufpointer=free(o_bufpointer); |
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111 | o_bufpointer = malloc(bufsize); |
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112 | memmov(o_bufpointer, bufpointer, bufsize); |
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7759 | leency | 113 | if (custom_encoding != -1) { |
114 | cur_encoding = custom_encoding; |
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7781 | leency | 115 | bufpointer = ChangeCharset(cur_encoding, "CP866", bufpointer); |
7759 | leency | 116 | } |
8490 | leency | 117 | list.SetFont(8, 14, 10011000b); |
7746 | leency | 118 | } |
119 | //============================================================================================ |
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7759 | leency | 120 | void TWebBrowser::ParseHtml(dword _bufpointer, _bufsize){ |
7752 | leency | 121 | int tab_len; |
7746 | leency | 122 | dword bufpos; |
7759 | leency | 123 | bufsize = _bufsize; |
8439 | leency | 124 | |
8457 | leency | 125 | if (list.w!=canvas.bufw) canvas.Init(list.x, list.y, list.w, 400*20); |
126 | |||
7771 | leency | 127 | if (bufpointer != _bufpointer) { |
128 | bufpointer = malloc(bufsize); |
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129 | memmov(bufpointer, _bufpointer, bufsize); |
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130 | } else { |
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131 | custom_encoding = CH_CP866; |
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132 | } |
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7746 | leency | 133 | SetPageDefaults(); |
7945 | leency | 134 | is_html = true; |
135 | if (!strstri(bufpointer, " |
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7749 | leency | 136 | t_body = true; |
7991 | leency | 137 | if (!strstri(bufpointer, " |
7945 | leency | 138 | style.pre = true; //show linebreaks for a plaint text |
139 | is_html = false; |
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140 | } |
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7749 | leency | 141 | } |
5773 | leency | 142 | for (bufpos=bufpointer ; (bufpos < bufpointer+bufsize) && (ESBYTE[bufpos]!=0) ; bufpos++;) |
4411 | leency | 143 | { |
8330 | leency | 144 | switch (ESBYTE[bufpos]) |
4411 | leency | 145 | { |
146 | case 0x0a: |
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7752 | leency | 147 | if (style.pre) { |
8491 | leency | 148 | RenderTextbuf(); |
5781 | leency | 149 | NewLine(); |
7752 | leency | 150 | } else { |
8491 | leency | 151 | goto _DEFAULT; |
4411 | leency | 152 | } |
7752 | leency | 153 | break; |
154 | case 0x09: |
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155 | if (style.pre) { |
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8462 | leency | 156 | tab_len = draw_x - left_gap / list.font_w + strlen(#line) % 4; |
7752 | leency | 157 | if (!tab_len) tab_len = 4; else tab_len = 4 - tab_len; |
8491 | leency | 158 | while (tab_len) {chrcat(#line,' '); tab_len--;} |
7752 | leency | 159 | } else { |
8491 | leency | 160 | goto _DEFAULT; |
4411 | leency | 161 | } |
7752 | leency | 162 | break; |
4411 | leency | 163 | case '&': // and so on |
8491 | leency | 164 | bufpos = GetUnicodeSymbol(#line, sizeof(TWebBrowser.line), bufpos+1, bufpointer+bufsize); |
4411 | leency | 165 | break; |
166 | case '<': |
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8330 | leency | 167 | if (!is_html) goto _DEFAULT; |
8490 | leency | 168 | if (!strchr("!/?abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ", ESBYTE[bufpos+1])) goto _DEFAULT; |
5749 | leency | 169 | bufpos++; |
8440 | leency | 170 | if (tag.parse(#bufpos, bufpointer + bufsize)) { |
8491 | leency | 171 | RenderTextbuf(); |
8439 | leency | 172 | $push cur_encoding |
173 | SetStyle(); |
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174 | $pop eax |
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175 | // The thing is that UTF if longer than other encodings. |
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176 | // So if encoding was changed from UTF to DOS than $bufpos position got wrong, |
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177 | // and we have to start parse from the very beginning |
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178 | if (EAX != cur_encoding) && (cur_encoding == CH_UTF8) { |
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179 | ParseHtml(bufpointer, bufsize); |
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180 | return; |
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8407 | leency | 181 | } |
7746 | leency | 182 | } |
4411 | leency | 183 | break; |
184 | default: |
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8330 | leency | 185 | _DEFAULT: |
7752 | leency | 186 | AddCharToTheLine(ESBYTE[bufpos]); |
4411 | leency | 187 | } |
188 | } |
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8491 | leency | 189 | RenderTextbuf(); |
190 | list.count = draw_y + style.cur_line_h; |
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8425 | leency | 191 | |
8491 | leency | 192 | canvas.bufh = math.max(list.visible, list.count); |
8439 | leency | 193 | buf_data = realloc(buf_data, canvas.bufh * canvas.bufw * 4 + 8); |
8425 | leency | 194 | |
7755 | leency | 195 | list.CheckDoesValuesOkey(); |
196 | anchors.current = NULL; |
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7759 | leency | 197 | custom_encoding = -1; |
7758 | leency | 198 | if (!header) { |
7759 | leency | 199 | strncpy(#header, #version, sizeof(TWebBrowser.header)-1); |
7758 | leency | 200 | DrawTitle(#header); |
201 | } |
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4411 | leency | 202 | } |
5747 | leency | 203 | //============================================================================================ |
8444 | leency | 204 | void TWebBrowser::AddCharToTheLine(unsigned char _char) |
205 | { |
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8491 | leency | 206 | dword line_len = strlen(#line); |
8444 | leency | 207 | if (_char<=15) _char=' '; |
208 | if (!style.pre) && (_char == ' ') |
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209 | { |
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210 | if (line[line_len-1]==' ') return; //no double spaces |
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8462 | leency | 211 | if (draw_x==left_gap) && (!line) return; //no paces at the beginning of the line |
8444 | leency | 212 | if (link) && (line_len==0) return; |
213 | } |
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8491 | leency | 214 | if (line_len < sizeof(TWebBrowser.line)) chrcat(#line+line_len, _char); |
215 | if (line_len+1 * list.font_w + draw_x >= draw_w) RenderTextbuf(); |
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8444 | leency | 216 | } |
217 | //============================================================================================ |
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4692 | leency | 218 | void TWebBrowser::NewLine() |
4475 | leency | 219 | { |
8457 | leency | 220 | static bool empty_line = true; |
4692 | leency | 221 | |
8462 | leency | 222 | if (draw_x==left_gap) && (draw_y==BODY_MARGIN) return; |
8457 | leency | 223 | if (t_html) && (!t_body) return; |
7742 | leency | 224 | |
8462 | leency | 225 | if (draw_x == style.tag_list.level * 5 * list.font_w + left_gap) { |
8457 | leency | 226 | if (!empty_line) empty_line=true; else return; |
7742 | leency | 227 | } else { |
8457 | leency | 228 | empty_line = false; |
7742 | leency | 229 | } |
6794 | leency | 230 | |
8451 | leency | 231 | draw_y += style.cur_line_h; |
232 | style.cur_line_h = list.item_h; |
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8457 | leency | 233 | if (style.blq) draw_x = 6 * list.font_w; else draw_x = 0; |
8462 | leency | 234 | draw_x += style.tag_list.level * 5 * list.font_w + left_gap; |
4488 | leency | 235 | } |
5747 | leency | 236 | //============================================================================================ |
8444 | leency | 237 | void TWebBrowser::ChangeEncoding(int _new_encoding) |
238 | { |
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239 | if (cur_encoding == _new_encoding) return; |
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240 | cur_encoding = _new_encoding; |
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241 | bufpointer = ChangeCharset(cur_encoding, "CP866", bufpointer); |
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242 | if (header) { |
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243 | ChangeCharset(cur_encoding, "CP866", #header); |
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244 | DrawTitle(#header); |
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245 | } |
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246 | } |
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247 | //============================================================================================ |
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8491 | leency | 248 | scroll_bar scroll_wv = { 15,NULL,NULL,NULL, |
249 | 0,2,NULL,0,0,0xeeeeee,0xBBBbbb,0xeeeeee}; |
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8439 | leency | 250 | |
5766 | leency | 251 | void TWebBrowser::DrawPage() |
252 | { |
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8457 | leency | 253 | if (list.w!=canvas.bufw) { |
254 | ParseHtml(bufpointer, bufsize); |
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255 | } |
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256 | canvas.Show(list.first, list.h); |
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257 | |||
8439 | leency | 258 | scroll_wv.max_area = list.count; |
259 | scroll_wv.cur_area = list.visible; |
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260 | scroll_wv.position = list.first; |
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261 | scroll_wv.all_redraw = 0; |
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262 | scroll_wv.start_x = list.x + list.w; |
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263 | scroll_wv.start_y = list.y; |
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264 | scroll_wv.size_y = list.h; |
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265 | |||
8490 | leency | 266 | if (list.count <= list.visible) { |
267 | DrawBar(scroll_wv.start_x, scroll_wv.start_y, scroll_wv.size_x, |
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268 | scroll_wv.size_y, bg_colors.get(0) & 0x00FFFFFF); |
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269 | } else { |
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270 | scrollbar_v_draw(#scroll_wv); |
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271 | } |
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5766 | leency | 272 | }=>>=15)>': |