forked from KolibriOS/kolibrios
200 lines
5.8 KiB
C
200 lines
5.8 KiB
C
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void PreparePage()
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{
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list.SetSizes(0, TOOLBAR_H, Form.cwidth-scroll.size_x-1, Form.cheight-TOOLBAR_H, label.size.pt+2);
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strcpy(#title, history.current()+strrchr(history.current(),'/'));
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//get font chars width, need to increase performance
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get_label_symbols_size();
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ChangeCharset(charsets[encoding], "CP866", io.buffer_data);
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if (strstri(io.buffer_data, "<html")==-1) {
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debugln("no <html> found");
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DrawProgress(STEP_2_COUNT_PAGE_HEIGHT); ParceTxt(false); //get page height to calculate buffer size
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DrawProgress(STEP_3_DRAW_PAGE_INTO_BUFFER); ParceTxt(true); //draw text in buffer
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} else {
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debugln("<html> tag found");
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DrawProgress(STEP_2_COUNT_PAGE_HEIGHT); ParceHtml(false); //get page height to calculate buffer size
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DrawProgress(STEP_3_DRAW_PAGE_INTO_BUFFER); ParceHtml(true); //draw text in buffer
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}
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strcat(#title, " - Aelia");
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DrawTitle(#title);
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DrawProgress(STEP_4_SMOOTH_FONT); label.apply_smooth();
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DrawProgress(STEP_5_STOP); DrawPage();
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}
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void ParceTxt(byte draw)
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{
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byte ch, zeroch=0;
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dword bufoff, buflen, line_start, srch_pos;
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int stroka_y=5, line_length=0;
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line_start=io.buffer_data;
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buflen = strlen(io.buffer_data) + io.buffer_data;
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for (bufoff=io.buffer_data; bufoff<buflen; bufoff++)
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{
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ch = ESBYTE[bufoff];
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line_length += char_width[ch];
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if (line_length>=list.w-30) || (ch==10) {
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srch_pos = bufoff;
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loop()
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{
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if (__isWhite(ESBYTE[srch_pos])) { bufoff=srch_pos+1; break; } //normal word-break
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if (srch_pos == line_start) break; //no white space found in whole line
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srch_pos--;
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}
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if (draw==true) {
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ESBYTE[bufoff] >< zeroch; //set line end
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WriteTextIntoBuf(8, stroka_y, 0x000000, line_start);
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ESBYTE[bufoff] >< zeroch; //restore line
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}
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stroka_y += list.item_h;
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line_start = bufoff;
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line_length = 0;
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}
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}
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if (draw==false) {
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list.count = stroka_y/list.item_h+2;
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if (list.count < list.visible) list.count = list.visible;
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label.size.height = list.count+1*list.item_h;
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label.raw_size = 0;
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}
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if (draw==true) WriteTextIntoBuf(8, stroka_y, 0x000000, line_start);
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}
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/*========================================================
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= =
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= HTML =
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= =
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========================================================*/
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/* <title> <meta encoding> <a hrf=""> <img src="" alt=""> <h1>..<h6> <b> <u> <s> <pre> */
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struct _DOM {
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dword start;
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dword end;
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dword len;
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};
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struct _style {
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bool b, u, i, s;
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bool h1, h2, h3, h4, h5, h6;
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bool a;
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bool pre;
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bool ignore;
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dword color;
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} style;
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struct _text {
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dword start;
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int x, y;
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};
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struct _tag {
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dword start;
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dword name;
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dword param[10];
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dword value[10];
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void parce();
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int nameis();
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};
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void _tag::parce()
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{
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dword o = name = start;
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while (ESBYTE[o]!=' ') && (ESBYTE[o]) o++; //searching for a space after tag name
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ESBYTE[o] = '\0';
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strlwr(name);
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}
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int _tag::nameis(dword _in_tag_name)
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{
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if (strcmp(_in_tag_name, name)==0) return true;
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return false;
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}
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#define HTML_PADDING_X 8;
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#define HTML_PADDING_Y 5;
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void ParceHtml(byte draw)
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{
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int stroka_x = HTML_PADDING_X;
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int stroka_y = HTML_PADDING_Y;
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dword line_break;
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byte ch, zeroch;
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_DOM DOM;
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_text text;
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_tag tag;
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dword DOM_pos;
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/* Create DOM */
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debugln("creating DOM");
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DOM.len = strlen(io.buffer_data);
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DOM.start = malloc(DOM.len);
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DOM.end = DOM.start + DOM.len;
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strlcpy(DOM.start, io.buffer_data, DOM.len);
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/* Parce DOM */
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debugln("starting DOM parce...");
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text.start = DOM_pos;
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for (DOM_pos=DOM.start; DOM_pos<DOM.end; DOM_pos++)
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{
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if (ESBYTE[DOM_pos]==0x0D) || (ESBYTE[DOM_pos]==0x0A) ESBYTE[DOM_pos]=' ';
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ch = ESBYTE[DOM_pos];
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//debugch(ch);
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if (ch=='<') {
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ESBYTE[DOM_pos] = '\0';
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tag.start = DOM_pos + 1;
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if (style.ignore) continue;
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if (tag.nameis("title")) {
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strcpy(#title, text.start);
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continue;
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}
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while (get_label_len(text.start) + stroka_x + 30 > list.w)
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{
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//debugln("long line cut");
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zeroch = 0;
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for (line_break=tag.start-1; line_break>text.start; line_break--;)
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{
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ESBYTE[line_break] >< zeroch; //set line end
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if (get_label_len(text.start) + stroka_x + 30 <= list.w) break;
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ESBYTE[line_break] >< zeroch; //restore line
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}
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if (draw==true) {
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if (style.a) label_draw_bar(stroka_x, stroka_y+label.size.pt+1, get_label_len(text.start), style.color);
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WriteTextIntoBuf(stroka_x, stroka_y, style.color, text.start);
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}
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ESBYTE[line_break] >< zeroch; //restore line
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text.start = line_break;
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stroka_x = HTML_PADDING_X;
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stroka_y += list.item_h;
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}
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if (draw==true) {
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if (style.a) label_draw_bar(stroka_x, stroka_y+label.size.pt+1, get_label_len(text.start), style.color);
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WriteTextIntoBuf(stroka_x, stroka_y, style.color, text.start);
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}
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stroka_x += get_label_len(text.start);
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}
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if (ch=='>') {
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ESBYTE[DOM_pos] = '\0';
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text.start = DOM_pos + 1;
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tag.parce();
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if (tag.nameis("br")) || (tag.nameis("p")) || (tag.nameis("div")) || (tag.nameis("h1")) || (tag.nameis("h2")) {
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stroka_y+= list.item_h;
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stroka_x = HTML_PADDING_X;
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continue;
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}
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if (tag.nameis("script")) || (tag.nameis("style")) style.ignore = true;
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if (tag.nameis("/script")) || (tag.nameis("/style")) style.ignore = false;
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if (tag.nameis("a")) { style.a = true; style.color=0x0000FF; }
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if (tag.nameis("/a")) { style.a = false; style.color=0x000000; }
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}
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}
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if (draw==false) {
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list.count = stroka_y/list.item_h+2;
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if (list.count < list.visible) list.count = list.visible;
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label.size.height = list.count+1*list.item_h;
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label.raw_size = 0;
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}
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free(DOM.start);
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} |