forked from KolibriOS/kolibrios
185 lines
4.5 KiB
C
185 lines
4.5 KiB
C
char char_width[255];
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void PreparePage()
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{
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int i;
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list.SetSizes(0, TOOLBAR_H, Form.cwidth-scroll.size_x-1, Form.cheight-TOOLBAR_H, label.size.pt+1);
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//get font chars width, need to increase performance
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//if (strstri(io.buffer_data, "<html>")==-1) {
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debugln("no <html> found");
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label.changeSIZE();
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for (i=0; i<256; i++) char_width[i] = label.symbol_size(i);
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ChangeCharset(charsets[encoding], "CP866", io.buffer_data);
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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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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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else {
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debugln("<html> tag found");
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label.changeSIZE();
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for (i=0; i<256; i++) char_width[i] = label.symbol_size(i);
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ChangeCharset(charsets[encoding], "CP866", io.buffer_data);
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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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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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}
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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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label.write_buf(8,stroka_y,list.w,label.size.height, 0xFFFFFF, 0, label.size.pt, line_start);
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ESBYTE[bufoff] >< zeroch; //restore line
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DrawProgressWhileDrawing(bufoff, buflen);
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if (stroka_y/list.item_h-list.first==list.visible) DrawPage();
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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) label.write_buf(8,stroka_y,list.w,label.size.height, 0xFFFFFF, 0, label.size.pt, 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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/*
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HTML parcer tags:
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<title>
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<meta encoding>
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<a hrf="">
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<img src="" alt="">
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<h1> ... <h6>
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<b>
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<u>
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<s>
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<pre>
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*/
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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 title;
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bool br;
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} style;
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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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void get_param_value();
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};
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void _tag::parce()
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{
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bool closed_status = false;
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if (start) debugln(start);
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/*
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if (strncmp(start, "/", 1)==0) {
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start++;
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closed_status = true;
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}
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if (!strcmp(start, "title")) style.title = closed_status;
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if (!strcmp(start, "br")) style.br = closed_status;
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*/
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}
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struct _text {
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dword start;
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int x, y;
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void draw();
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};
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void _text::draw()
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{
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if (start) debugln(start);
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/*
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if (style.title) {
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strlcpy(#title, start, sizeof(title));
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DrawTitle(#title);
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return;
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}
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if (style.br) {
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y += list.item_h;
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style.br = false;
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}
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*/
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}
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void ParceHtml(byte draw)
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{
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byte ch;
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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("starting DOM parce");
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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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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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ch = ESBYTE[DOM_pos];
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if (ch=='<') {
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ESBYTE[DOM_pos] = NULL;
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tag.start = DOM_pos + 1;
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text.draw();
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}
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if (ch=='>') {
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ESBYTE[DOM_pos] = NULL;
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text.start = DOM_pos + 1;
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tag.parce();
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}
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}
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free(DOM.start);
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ExitProcess();
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} |