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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 |
12 | #define BASIC_LINE_H 18 |
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4416 | leency | 13 | |
8439 | leency | 14 | CANVAS canvas; |
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; |
8457 | leency | 42 | dword draw_y, draw_x; |
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 | |
7771 | leency | 53 | void Paint(); |
7746 | leency | 54 | void SetPageDefaults(); |
7752 | leency | 55 | void AddCharToTheLine(); |
56 | void ParseHtml(); |
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5766 | leency | 57 | void SetStyle(); |
7762 | leency | 58 | bool CheckForLineBreak(); |
59 | void NewLine(); |
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60 | void ChangeEncoding(); |
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4411 | leency | 61 | void DrawPage(); |
8439 | leency | 62 | |
63 | void tag_a(); |
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64 | void tag_p(); |
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65 | void tag_img(); |
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66 | void tag_div(); |
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67 | void tag_h1234_caption(); |
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68 | void tag_ol_ul_dt(); |
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69 | void tag_li(); |
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70 | void tag_q(); |
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71 | void tag_hr(); |
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72 | void tag_code(); |
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73 | void tag_meta_xml(); |
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74 | void tag_body(); |
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75 | void tag_iframe(); |
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76 | void tag_title(); |
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77 | void tag_font(); |
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7759 | leency | 78 | }; |
4486 | leency | 79 | |
8439 | leency | 80 | #include "TWB\set_style.h" |
4411 | leency | 81 | |
5747 | leency | 82 | //============================================================================================ |
7771 | leency | 83 | void TWebBrowser::Paint() |
4411 | leency | 84 | { |
8454 | leency | 85 | unsigned px; //paint x coordinate |
86 | unsigned pw; //paint y coordinate |
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87 | dword pc; //paint color |
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8457 | leency | 88 | int zoom; |
89 | |||
8439 | leency | 90 | if (style.title) |
4411 | leency | 91 | { |
7759 | leency | 92 | strncpy(#header, #line, sizeof(TWebBrowser.header)-1); |
93 | strncat(#header, " - ", sizeof(TWebBrowser.header)-1); |
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94 | strncat(#header, #version, sizeof(TWebBrowser.header)-1); |
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4411 | leency | 95 | line = 0; |
96 | return; |
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97 | } |
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7758 | leency | 98 | if (t_html) && (!t_body) { |
99 | line = 0; |
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100 | return; |
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101 | } |
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4411 | leency | 102 | |
6803 | leency | 103 | if (line) |
4411 | leency | 104 | { |
8457 | leency | 105 | pw = strlen(#line) * list.font_w; |
106 | zoom = list.font_w / BASIC_CHAR_W; |
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8454 | leency | 107 | |
8451 | leency | 108 | style.cur_line_h = math.max(style.cur_line_h, list.item_h); |
4411 | leency | 109 | |
8451 | leency | 110 | if (bg_colors.get_last() - bg_colors.get(0)) { |
8457 | leency | 111 | canvas.DrawBar(draw_x, draw_y, pw, list.item_h, bg_colors.get_last()); |
7743 | leency | 112 | } |
113 | |||
7742 | leency | 114 | if (style.image) { |
8457 | leency | 115 | canvas.DrawBar(draw_x, draw_y, pw, list.item_h-1, 0xF9DBCB); |
7742 | leency | 116 | } |
117 | if (style.button) { |
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8457 | leency | 118 | canvas.DrawBar(draw_x, draw_y, pw, list.item_h - calc(zoom*2), 0xCCCccc); |
119 | canvas.DrawBar(draw_x, draw_y + list.item_h - calc(zoom*2), pw, zoom, 0x999999); |
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7742 | leency | 120 | } |
121 | |||
8454 | leency | 122 | pc = text_colors.get_last(); |
123 | if (link) && (pc == text_colors.get(0)) pc = link_color_default; |
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7762 | leency | 124 | |
8457 | leency | 125 | canvas.WriteText(draw_x, draw_y, list.font_type, pc, #line, NULL); |
126 | if (style.b) canvas.WriteText(draw_x+1, draw_y, list.font_type, pc, #line, NULL); |
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127 | if (style.s) canvas.DrawBar(draw_x, list.item_h / 2 - zoom + draw_y, pw, zoom, pc); |
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128 | if (style.u) canvas.DrawBar(draw_x, list.item_h - zoom - zoom + draw_y, pw, zoom, pc); |
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5519 | leency | 129 | if (link) { |
7747 | leency | 130 | if (line[0]==' ') && (line[1]==NULL) {} else { |
8457 | leency | 131 | canvas.DrawBar(draw_x, draw_y + list.item_h - calc(zoom*2)-1, pw, zoom, link_color_default); |
132 | links.add_text(draw_x, draw_y + list.y, pw, list.item_h - calc(zoom*2)-1, zoom); |
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7746 | leency | 133 | } |
4411 | leency | 134 | } |
8457 | leency | 135 | draw_x += pw; |
8439 | leency | 136 | if (debug_mode) debugln(#line); |
7750 | leency | 137 | line = NULL; |
4411 | leency | 138 | } |
139 | } |
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5747 | leency | 140 | //============================================================================================ |
7746 | leency | 141 | void TWebBrowser::SetPageDefaults() |
142 | { |
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8439 | leency | 143 | t_html = t_body = link = false; |
144 | style.reset(); |
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7759 | leency | 145 | link_color_default = 0x0000FF; |
4491 | leency | 146 | link_color_active = 0xFF0000; |
8454 | leency | 147 | style.cur_line_h = list.item_h; |
7970 | leency | 148 | links.clear(); |
7752 | leency | 149 | anchors.clear(); |
8396 | leency | 150 | img_url.drop(); |
8016 | leency | 151 | text_colors.drop(); |
152 | text_colors.add(0); |
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8451 | leency | 153 | bg_colors.drop(); |
154 | bg_colors.add(DEFAULT_BG_COL); |
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155 | canvas.Fill(0, DEFAULT_BG_COL); |
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7758 | leency | 156 | header = NULL; |
7759 | leency | 157 | cur_encoding = CH_CP866; |
158 | draw_y = BODY_MARGIN; |
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8457 | leency | 159 | draw_x = BODY_MARGIN; |
4411 | leency | 160 | line = 0; |
8302 | leency | 161 | redirect = '\0'; |
7757 | leency | 162 | //hold original buffer |
163 | if (o_bufpointer) o_bufpointer=free(o_bufpointer); |
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164 | o_bufpointer = malloc(bufsize); |
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165 | memmov(o_bufpointer, bufpointer, bufsize); |
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7759 | leency | 166 | if (custom_encoding != -1) { |
167 | cur_encoding = custom_encoding; |
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7781 | leency | 168 | bufpointer = ChangeCharset(cur_encoding, "CP866", bufpointer); |
7759 | leency | 169 | } |
7746 | leency | 170 | } |
171 | //============================================================================================ |
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7759 | leency | 172 | void TWebBrowser::ParseHtml(dword _bufpointer, _bufsize){ |
7752 | leency | 173 | char unicode_symbol[10]; |
7746 | leency | 174 | dword j; |
7752 | leency | 175 | int tab_len; |
7746 | leency | 176 | dword bufpos; |
7759 | leency | 177 | bufsize = _bufsize; |
8439 | leency | 178 | |
8457 | leency | 179 | if (list.w!=canvas.bufw) canvas.Init(list.x, list.y, list.w, 400*20); |
180 | |||
7771 | leency | 181 | if (bufpointer != _bufpointer) { |
182 | bufpointer = malloc(bufsize); |
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183 | memmov(bufpointer, _bufpointer, bufsize); |
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184 | } else { |
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185 | custom_encoding = CH_CP866; |
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186 | } |
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7746 | leency | 187 | SetPageDefaults(); |
7945 | leency | 188 | is_html = true; |
189 | if (!strstri(bufpointer, " |
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7749 | leency | 190 | t_body = true; |
7991 | leency | 191 | if (!strstri(bufpointer, " |
7945 | leency | 192 | style.pre = true; //show linebreaks for a plaint text |
193 | is_html = false; |
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194 | } |
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7749 | leency | 195 | } |
5773 | leency | 196 | for (bufpos=bufpointer ; (bufpos < bufpointer+bufsize) && (ESBYTE[bufpos]!=0) ; bufpos++;) |
4411 | leency | 197 | { |
8330 | leency | 198 | switch (ESBYTE[bufpos]) |
4411 | leency | 199 | { |
200 | case 0x0a: |
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7752 | leency | 201 | if (style.pre) { |
7771 | leency | 202 | Paint(); |
5781 | leency | 203 | NewLine(); |
7752 | leency | 204 | } else { |
205 | AddCharToTheLine(0x0a); |
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4411 | leency | 206 | } |
7752 | leency | 207 | break; |
208 | case 0x09: |
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209 | if (style.pre) { |
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8457 | leency | 210 | tab_len = draw_x - BODY_MARGIN / list.font_w + strlen(#line) % 4; |
7752 | leency | 211 | if (!tab_len) tab_len = 4; else tab_len = 4 - tab_len; |
4411 | leency | 212 | for (j=0; j |
7752 | leency | 213 | } else { |
214 | AddCharToTheLine(0x09); |
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4411 | leency | 215 | } |
7752 | leency | 216 | break; |
4411 | leency | 217 | case '&': // and so on |
8319 | leency | 218 | for (j=1, unicode_symbol=0; (ESBYTE[bufpos+j]<>';') && (!__isWhite(ESBYTE[bufpos+j])) && (j<8); j++) |
4411 | leency | 219 | { |
8410 | leency | 220 | chrcat(#unicode_symbol, ESBYTE[bufpos+j]); |
4411 | leency | 221 | } |
7771 | leency | 222 | if (GetUnicodeSymbol(#line, #unicode_symbol, sizeof(line)-1)) { |
7749 | leency | 223 | bufpos += j; |
7750 | leency | 224 | CheckForLineBreak(); |
7749 | leency | 225 | } else { |
7752 | leency | 226 | AddCharToTheLine('&'); |
7749 | leency | 227 | } |
4411 | leency | 228 | break; |
229 | case '<': |
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8330 | leency | 230 | if (!is_html) goto _DEFAULT; |
5749 | leency | 231 | bufpos++; |
8330 | leency | 232 | switch (ESBYTE[bufpos]) { |
8439 | leency | 233 | case '!': case '/': case '?': |
234 | case 'a'...'z': case 'A'...'Z': |
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8330 | leency | 235 | goto _TAG; |
236 | default: |
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237 | goto _DEFAULT; |
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238 | } |
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239 | _TAG: |
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8440 | leency | 240 | if (tag.parse(#bufpos, bufpointer + bufsize)) { |
7750 | leency | 241 | CheckForLineBreak(); |
7771 | leency | 242 | Paint(); |
8439 | leency | 243 | $push cur_encoding |
244 | SetStyle(); |
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245 | $pop eax |
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246 | // The thing is that UTF if longer than other encodings. |
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247 | // So if encoding was changed from UTF to DOS than $bufpos position got wrong, |
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248 | // and we have to start parse from the very beginning |
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249 | if (EAX != cur_encoding) && (cur_encoding == CH_UTF8) { |
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250 | ParseHtml(bufpointer, bufsize); |
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251 | return; |
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8407 | leency | 252 | } |
7746 | leency | 253 | } |
4411 | leency | 254 | break; |
255 | default: |
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8330 | leency | 256 | _DEFAULT: |
7752 | leency | 257 | AddCharToTheLine(ESBYTE[bufpos]); |
4411 | leency | 258 | } |
259 | } |
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7771 | leency | 260 | Paint(); |
5766 | leency | 261 | NewLine(); |
7752 | leency | 262 | list.count = draw_y; |
8425 | leency | 263 | |
8439 | leency | 264 | canvas.bufh = math.max(list.visible, draw_y); |
265 | buf_data = realloc(buf_data, canvas.bufh * canvas.bufw * 4 + 8); |
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8425 | leency | 266 | |
7755 | leency | 267 | list.CheckDoesValuesOkey(); |
268 | anchors.current = NULL; |
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7759 | leency | 269 | custom_encoding = -1; |
7758 | leency | 270 | if (!header) { |
7759 | leency | 271 | strncpy(#header, #version, sizeof(TWebBrowser.header)-1); |
7758 | leency | 272 | DrawTitle(#header); |
273 | } |
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4411 | leency | 274 | } |
5747 | leency | 275 | //============================================================================================ |
8444 | leency | 276 | void TWebBrowser::AddCharToTheLine(unsigned char _char) |
277 | { |
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278 | dword line_len; |
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279 | if (_char<=15) _char=' '; |
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280 | line_len = strlen(#line); |
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281 | if (!style.pre) && (_char == ' ') |
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282 | { |
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283 | if (line[line_len-1]==' ') return; //no double spaces |
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8457 | leency | 284 | if (draw_x==BODY_MARGIN) && (!line) return; //no paces at the beginning of the line |
8444 | leency | 285 | if (link) && (line_len==0) return; |
286 | } |
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287 | if (line_len < sizeof(line)) chrcat(#line, _char); |
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288 | CheckForLineBreak(); |
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289 | } |
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290 | //============================================================================================ |
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7750 | leency | 291 | bool TWebBrowser::CheckForLineBreak() |
4718 | leency | 292 | { |
8457 | leency | 293 | int break_pos; |
294 | char next_line[4096]; |
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295 | int zoom = list.font_w / BASIC_CHAR_W; |
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7758 | leency | 296 | //Do we need a line break? |
8457 | leency | 297 | if (strlen(#line) * list.font_w + draw_x < list.w) return false; |
7758 | leency | 298 | //Yes, we do. Lets calculate where... |
8457 | leency | 299 | break_pos = strrchr(#line, ' '); |
300 | |||
7758 | leency | 301 | //Is a new line fits in the current line? |
8457 | leency | 302 | if (break_pos * list.font_w + draw_x > list.w) { |
303 | break_pos = list.w - draw_x /list.font_w; |
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304 | while(break_pos) && (line[break_pos]!=' ') break_pos--; |
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7750 | leency | 305 | } |
7758 | leency | 306 | //Maybe a new line is too big for the whole new line? Then we have to split it |
8457 | leency | 307 | if (!break_pos) && (style.tag_list.level*5 + strlen(#line) * zoom >= list.column_max) { |
308 | break_pos = list.w - draw_x / list.font_w; |
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7742 | leency | 309 | } |
8457 | leency | 310 | |
311 | strcpy(#next_line, #line + break_pos); |
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312 | line[break_pos] = 0x00; |
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7758 | leency | 313 | |
7771 | leency | 314 | Paint(); |
7758 | leency | 315 | |
8457 | leency | 316 | strcpy(#line, #next_line); |
4718 | leency | 317 | NewLine(); |
7750 | leency | 318 | return true; |
4718 | leency | 319 | } |
5747 | leency | 320 | //============================================================================================ |
4692 | leency | 321 | void TWebBrowser::NewLine() |
4475 | leency | 322 | { |
8457 | leency | 323 | static bool empty_line = true; |
4692 | leency | 324 | |
8457 | leency | 325 | if (draw_x==BODY_MARGIN) && (draw_y==BODY_MARGIN) return; |
326 | if (t_html) && (!t_body) return; |
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7742 | leency | 327 | |
8457 | leency | 328 | if (draw_x == style.tag_list.level * 5 * list.font_w + BODY_MARGIN) { |
329 | if (!empty_line) empty_line=true; else return; |
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7742 | leency | 330 | } else { |
8457 | leency | 331 | empty_line = false; |
7742 | leency | 332 | } |
6794 | leency | 333 | |
8451 | leency | 334 | draw_y += style.cur_line_h; |
335 | style.cur_line_h = list.item_h; |
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8457 | leency | 336 | if (style.blq) draw_x = 6 * list.font_w; else draw_x = 0; |
337 | draw_x += style.tag_list.level * 5 * list.font_w + BODY_MARGIN; |
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4488 | leency | 338 | } |
5747 | leency | 339 | //============================================================================================ |
8444 | leency | 340 | void TWebBrowser::ChangeEncoding(int _new_encoding) |
341 | { |
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342 | if (cur_encoding == _new_encoding) return; |
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343 | cur_encoding = _new_encoding; |
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344 | bufpointer = ChangeCharset(cur_encoding, "CP866", bufpointer); |
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345 | if (header) { |
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346 | ChangeCharset(cur_encoding, "CP866", #header); |
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347 | DrawTitle(#header); |
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348 | } |
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349 | } |
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350 | //============================================================================================ |
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8439 | leency | 351 | scroll_bar scroll_wv = |
352 | { 15,NULL,NULL,NULL,0,2,NULL, |
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353 | 0,0,0xeeeeee,0xBBBbbb,0xeeeeee}; |
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354 | |||
5766 | leency | 355 | void TWebBrowser::DrawPage() |
356 | { |
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8457 | leency | 357 | if (list.w!=canvas.bufw) { |
358 | ParseHtml(bufpointer, bufsize); |
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359 | } |
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360 | canvas.Show(list.first, list.h); |
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361 | |||
8439 | leency | 362 | scroll_wv.max_area = list.count; |
363 | scroll_wv.cur_area = list.visible; |
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364 | scroll_wv.position = list.first; |
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365 | scroll_wv.all_redraw = 0; |
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366 | scroll_wv.start_x = list.x + list.w; |
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367 | scroll_wv.start_y = list.y; |
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368 | scroll_wv.size_y = list.h; |
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369 | scrollbar_v_draw(#scroll_wv); |
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370 | |||
5766 | leency | 371 | }>>=15)>': |