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-rw-r--r--src/spreadsheet/html_dumper.cpp695
1 files changed, 695 insertions, 0 deletions
diff --git a/src/spreadsheet/html_dumper.cpp b/src/spreadsheet/html_dumper.cpp
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+++ b/src/spreadsheet/html_dumper.cpp
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "html_dumper.hpp"
+#include "impl_types.hpp"
+#include "number_format.hpp"
+
+#include "orcus/spreadsheet/styles.hpp"
+#include "orcus/spreadsheet/shared_strings.hpp"
+#include "orcus/spreadsheet/document.hpp"
+#include "orcus/spreadsheet/sheet.hpp"
+
+#include <ixion/address.hpp>
+#include <ixion/model_context.hpp>
+#include <ixion/formula.hpp>
+#include <ixion/formula_result.hpp>
+#include <ixion/cell.hpp>
+
+#include <sstream>
+
+namespace orcus { namespace spreadsheet { namespace detail {
+
+namespace {
+
+void build_rgb_color(std::ostringstream& os, const color_t& color_value)
+{
+ // Special colors.
+ if (color_value.alpha == 255 && color_value.red == 0 && color_value.green == 0 && color_value.blue == 0)
+ {
+ os << "black";
+ return;
+ }
+
+ if (color_value.alpha == 255 && color_value.red == 255 && color_value.green == 0 && color_value.blue == 0)
+ {
+ os << "red";
+ return;
+ }
+
+ if (color_value.alpha == 255 && color_value.red == 0 && color_value.green == 255 && color_value.blue == 0)
+ {
+ os << "green";
+ return;
+ }
+
+ if (color_value.alpha == 255 && color_value.red == 0 && color_value.green == 0 && color_value.blue == 255)
+ {
+ os << "blue";
+ return;
+ }
+
+ os << "rgb("
+ << static_cast<short>(color_value.red) << ","
+ << static_cast<short>(color_value.green) << ","
+ << static_cast<short>(color_value.blue) << ")";
+}
+
+const char* css_style_global =
+"table, td { "
+ "border-collapse : collapse; "
+"}\n"
+
+"table { "
+ "border-spacing : 0px; "
+"}\n"
+
+"td { "
+ "width : 1in; border: 1px solid lightgray; "
+"}\n"
+
+"td.empty { "
+ "color : white; "
+"}\n";
+
+class html_elem
+{
+public:
+ struct attr
+ {
+ std::string name;
+ std::string value;
+
+ attr(const std::string& _name, const std::string& _value) : name(_name), value(_value) {}
+ };
+
+ typedef std::vector<attr> attrs_type;
+
+ html_elem(std::ostream& strm, const char* name, const char* style = nullptr, const char* style_class = nullptr) :
+ m_strm(strm), m_name(name)
+ {
+ m_strm << '<' << m_name;
+
+ if (style)
+ m_strm << " style=\"" << style << "\"";
+
+ if (style_class)
+ m_strm << " class=\"" << style_class << "\"";
+
+ m_strm << '>';
+ }
+
+ html_elem(std::ostream& strm, const char* name, const attrs_type& attrs) :
+ m_strm(strm), m_name(name)
+ {
+ m_strm << '<' << m_name;
+
+ attrs_type::const_iterator it = attrs.begin(), it_end = attrs.end();
+ for (; it != it_end; ++it)
+ m_strm << " " << it->name << "=\"" << it->value << "\"";
+
+ m_strm << '>';
+ }
+
+ ~html_elem()
+ {
+ m_strm << "</" << m_name << '>';
+ }
+
+private:
+ std::ostream& m_strm;
+ const char* m_name;
+};
+
+void print_formatted_text(std::ostream& strm, const std::string& text, const format_runs_t& formats)
+{
+ typedef html_elem elem;
+
+ const char* p_span = "span";
+
+ size_t pos = 0;
+ format_runs_t::const_iterator itr = formats.begin(), itr_end = formats.end();
+ for (; itr != itr_end; ++itr)
+ {
+ const format_run& run = *itr;
+ if (pos < run.pos)
+ {
+ // flush unformatted text.
+ strm << std::string(&text[pos], run.pos-pos);
+ pos = run.pos;
+ }
+
+ if (!run.size)
+ continue;
+
+ std::string style = "";
+ if (run.bold)
+ style += "font-weight: bold;";
+ else
+ style += "font-weight: normal;";
+
+ if (run.italic)
+ style += "font-style: italic;";
+ else
+ style += "font-style: normal;";
+
+ if (!run.font.empty())
+ {
+ style += "font-family: ";
+ style += run.font;
+ style += ";";
+ }
+
+ if (run.font_size)
+ {
+ std::ostringstream os;
+ os << "font-size: " << run.font_size << "pt;";
+ style += os.str();
+ }
+
+ const color_t& col = run.color;
+ if (col.red || col.green || col.blue)
+ {
+ std::ostringstream os;
+ os << "color: ";
+ build_rgb_color(os, col);
+ os << ";";
+ style += os.str();
+ }
+
+ if (style.empty())
+ strm << std::string(&text[pos], run.size);
+ else
+ {
+ elem span(strm, p_span, style.c_str());
+ strm << std::string(&text[pos], run.size);
+ }
+
+ pos += run.size;
+ }
+
+ if (pos < text.size())
+ {
+ // flush the remaining unformatted text.
+ strm << std::string(&text[pos], text.size() - pos);
+ }
+}
+
+void build_border_style(std::ostringstream& os, const char* style_name, const border_attrs_t& attrs)
+{
+ if (!attrs.style || *attrs.style == border_style_t::none)
+ return;
+
+ os << style_name << ": ";
+ switch (*attrs.style)
+ {
+ case border_style_t::thin:
+ {
+ os << "solid 1px ";
+ break;
+ }
+ case border_style_t::medium:
+ {
+ os << "solid 2px ";
+ break;
+ }
+ case border_style_t::thick:
+ {
+ os << "solid 3px ";
+ break;
+ }
+ case border_style_t::hair:
+ {
+ os << "solid 0.5px ";
+ break;
+ }
+ case border_style_t::dotted:
+ {
+ os << "dotted 1px ";
+ break;
+ }
+ case border_style_t::dashed:
+ {
+ os << "dashed 1px ";
+ break;
+ }
+ case border_style_t::double_border:
+ {
+ os << "3px double ";
+ break;
+ }
+ case border_style_t::dash_dot:
+ {
+ // CSS doesn't support dash-dot.
+ os << "dashed 1px ";
+ break;
+ }
+ case border_style_t::dash_dot_dot:
+ {
+ // CSS doesn't support dash-dot-dot.
+ os << "dashed 1px ";
+ break;
+ }
+ case border_style_t::medium_dashed:
+ {
+ os << "dashed 2px ";
+ break;
+ }
+ case border_style_t::medium_dash_dot:
+ {
+ // CSS doesn't support dash-dot.
+ os << "dashed 2px ";
+ break;
+ }
+ case border_style_t::medium_dash_dot_dot:
+ {
+ // CSS doesn't support dash-dot-dot.
+ os << "dashed 2px ";
+ break;
+ }
+ case border_style_t::slant_dash_dot:
+ {
+ // CSS doesn't support dash-dot.
+ os << "dashed 2px ";
+ break;
+ }
+ default:;
+ }
+
+ build_rgb_color(os, *attrs.border_color);
+ os << "; ";
+}
+
+void build_style_string(std::string& str, const styles& styles, const cell_format_t& fmt)
+{
+ std::ostringstream os;
+
+ {
+ const font_t* p = styles.get_font(fmt.font);
+ if (p)
+ {
+ if (p->name && !p->name.value().empty())
+ os << "font-family: " << *p->name << ";";
+ if (p->size)
+ os << "font-size: " << *p->size << "pt;";
+ if (p->bold && *p->bold)
+ os << "font-weight: bold;";
+ if (p->italic && *p->italic)
+ os << "font-style: italic;";
+
+ if (p->color)
+ {
+ const color_t& r = *p->color;
+ if (r.red || r.green || r.blue)
+ {
+ os << "color: ";
+ build_rgb_color(os, r);
+ os << ";";
+ }
+ }
+ }
+ }
+
+ {
+ const fill_t* p = styles.get_fill(fmt.fill);
+ if (p)
+ {
+ if (p->pattern_type && *p->pattern_type == fill_pattern_t::solid && p->fg_color)
+ {
+ const color_t& r = *p->fg_color;
+ os << "background-color: ";
+ build_rgb_color(os, r);
+ os << ";";
+ }
+ }
+ }
+
+ {
+ const border_t* p = styles.get_border(fmt.border);
+ if (p)
+ {
+ build_border_style(os, "border-top", p->top);
+ build_border_style(os, "border-bottom", p->bottom);
+ build_border_style(os, "border-left", p->left);
+ build_border_style(os, "border-right", p->right);
+ }
+ }
+
+ if (fmt.apply_alignment)
+ {
+ if (fmt.hor_align != hor_alignment_t::unknown)
+ {
+ os << "text-align: ";
+ switch (fmt.hor_align)
+ {
+ case hor_alignment_t::left:
+ os << "left";
+ break;
+ case hor_alignment_t::center:
+ os << "center";
+ break;
+ case hor_alignment_t::right:
+ os << "right";
+ break;
+ default:
+ ;
+ }
+ os << ";";
+ }
+
+ if (fmt.ver_align != ver_alignment_t::unknown)
+ {
+ os << "vertical-align: ";
+ switch (fmt.ver_align)
+ {
+ case ver_alignment_t::top:
+ os << "top";
+ break;
+ case ver_alignment_t::middle:
+ os << "middle";
+ break;
+ case ver_alignment_t::bottom:
+ os << "bottom";
+ break;
+ default:
+ ;
+ }
+ os << ";";
+ }
+ }
+
+ str += os.str();
+}
+
+void dump_html_head(std::ostream& os)
+{
+ typedef html_elem elem;
+
+ const char* p_head = "head";
+ const char* p_style = "style";
+
+ elem elem_head(os, p_head);
+ {
+ elem elem_style(os, p_style);
+ os << css_style_global;
+ }
+}
+
+void build_html_elem_attributes(html_elem::attrs_type& attrs, const std::string& style, const merge_size* p_merge_size)
+{
+ attrs.push_back(html_elem::attr("style", style));
+ if (p_merge_size)
+ {
+ if (p_merge_size->width > 1)
+ {
+ std::ostringstream os2;
+ os2 << p_merge_size->width;
+ attrs.push_back(html_elem::attr("colspan", os2.str()));
+ }
+
+ if (p_merge_size->height > 1)
+ {
+ std::ostringstream os2;
+ os2 << p_merge_size->height;
+ attrs.push_back(html_elem::attr("rowspan", os2.str()));
+ }
+ }
+}
+
+}
+
+html_dumper::html_dumper(
+ const document& doc,
+ const col_merge_size_type& merge_ranges,
+ sheet_t sheet_id) :
+ m_doc(doc),
+ m_merge_ranges(merge_ranges),
+ m_sheet_id(sheet_id)
+{
+ build_overlapped_ranges();
+}
+
+void html_dumper::dump(std::ostream& os) const
+{
+ const sheet* sh = m_doc.get_sheet(m_sheet_id);
+ if (!sh)
+ return;
+
+ typedef html_elem elem;
+
+ const char* p_html = "html";
+ const char* p_body = "body";
+ const char* p_table = "table";
+ const char* p_tr = "tr";
+ const char* p_td = "td";
+
+ ixion::abs_range_t range = sh->get_data_range();
+
+ elem root(os, p_html);
+ dump_html_head(os);
+
+ {
+ elem elem_body(os, p_body);
+
+ if (!range.valid())
+ // Sheet is empty. Nothing to print.
+ return;
+
+ const ixion::model_context& cxt = m_doc.get_model_context();
+ const ixion::formula_name_resolver* resolver =
+ m_doc.get_formula_name_resolver(spreadsheet::formula_ref_context_t::global);
+ const shared_strings& sstrings = m_doc.get_shared_strings();
+
+ elem table(os, p_table);
+
+ row_t row_count = range.last.row + 1;
+ col_t col_count = range.last.column + 1;
+ for (row_t row = 0; row < row_count; ++row)
+ {
+ // Set the row height.
+ std::string row_style;
+ row_height_t rh = sh->get_row_height(row, nullptr, nullptr);
+
+ // Convert height from twip to inches.
+ if (rh != get_default_row_height())
+ {
+ std::string style;
+ double val = orcus::convert(rh, length_unit_t::twip, length_unit_t::inch);
+ std::ostringstream os_style;
+ os_style << "height: " << val << "in;";
+ row_style += os_style.str();
+ }
+
+ const char* style_str = nullptr;
+ if (!row_style.empty())
+ style_str = row_style.c_str();
+ elem tr(os, p_tr, style_str);
+
+ const detail::overlapped_col_index_type* p_overlapped = get_overlapped_ranges(row);
+
+ for (col_t col = 0; col < col_count; ++col)
+ {
+ ixion::abs_address_t pos(m_sheet_id, row, col);
+
+ const merge_size* p_merge_size = get_merge_size(row, col);
+ if (!p_merge_size && p_overlapped)
+ {
+ // Check if this cell is overlapped by a merged cell.
+ col_t overlapped_origin = -1;
+ col_t last_col = -1;
+ if (p_overlapped->search_tree(col, overlapped_origin, nullptr, &last_col).second && overlapped_origin >= 0)
+ {
+ // Skip all overlapped cells on this row.
+ col = last_col - 1;
+ continue;
+ }
+ }
+ size_t xf_id = sh->get_cell_format(row, col);
+ std::string style;
+
+ if (row == 0)
+ {
+ // Set the column width.
+ col_width_t cw = sh->get_col_width(col, nullptr, nullptr);
+
+ // Convert width from twip to inches.
+ if (cw != get_default_column_width())
+ {
+ double val = orcus::convert(cw, length_unit_t::twip, length_unit_t::inch);
+ std::ostringstream os_style;
+ os_style << "width: " << val << "in;";
+ style += os_style.str();
+ }
+ }
+
+ {
+ // Apply cell format.
+ const styles& styles = m_doc.get_styles();
+ const cell_format_t* fmt = styles.get_cell_format(xf_id);
+ if (fmt)
+ build_style_string(style, styles, *fmt);
+ }
+
+ ixion::celltype_t ct = cxt.get_celltype(pos);
+ if (ct == ixion::celltype_t::empty)
+ {
+ html_elem::attrs_type attrs;
+ build_html_elem_attributes(attrs, style, p_merge_size);
+ attrs.push_back(html_elem::attr("class", "empty"));
+ elem td(os, p_td, attrs);
+ os << '-'; // empty cell.
+ continue;
+ }
+
+ html_elem::attrs_type attrs;
+ build_html_elem_attributes(attrs, style, p_merge_size);
+ elem td(os, p_td, attrs);
+
+ switch (ct)
+ {
+ case ixion::celltype_t::string:
+ {
+ size_t sindex = cxt.get_string_identifier(pos);
+ const std::string* p = cxt.get_string(sindex);
+ assert(p);
+ const format_runs_t* pformat = sstrings.get_format_runs(sindex);
+ if (pformat)
+ print_formatted_text(os, *p, *pformat);
+ else
+ os << *p;
+
+ break;
+ }
+ case ixion::celltype_t::numeric:
+ format_to_file_output(os, cxt.get_numeric_value(pos));
+ break;
+ case ixion::celltype_t::boolean:
+ os << (cxt.get_boolean_value(pos) ? "true" : "false");
+ break;
+ case ixion::celltype_t::formula:
+ {
+ // print the formula and the formula result.
+ const ixion::formula_cell* cell = cxt.get_formula_cell(pos);
+ assert(cell);
+ const ixion::formula_tokens_store_ptr_t& ts = cell->get_tokens();
+ if (ts)
+ {
+ const ixion::formula_tokens_t& tokens = ts->get();
+
+ std::string formula;
+ if (resolver)
+ {
+ pos = cell->get_parent_position(pos);
+ formula = ixion::print_formula_tokens(
+ m_doc.get_model_context(), pos, *resolver, tokens);
+ }
+ else
+ formula = "???";
+
+ ixion::formula_group_t fg = cell->get_group_properties();
+
+ if (fg.grouped)
+ os << '{' << formula << '}';
+ else
+ os << formula;
+
+ try
+ {
+ ixion::formula_result res = cell->get_result_cache(
+ ixion::formula_result_wait_policy_t::throw_exception);
+ os << " (" << res.str(m_doc.get_model_context()) << ")";
+ }
+ catch (const std::exception&)
+ {
+ os << " (#RES!)";
+ }
+ }
+
+ break;
+ }
+ default:
+ ;
+ }
+ }
+ }
+ }
+}
+
+const overlapped_col_index_type* html_dumper::get_overlapped_ranges(row_t row) const
+{
+ overlapped_cells_type::const_iterator it = m_overlapped_ranges.find(row);
+ if (it == m_overlapped_ranges.end())
+ return nullptr;
+
+ return it->second.get();
+}
+
+const merge_size* html_dumper::get_merge_size(row_t row, col_t col) const
+{
+ col_merge_size_type::const_iterator it_col = m_merge_ranges.find(col);
+ if (it_col == m_merge_ranges.end())
+ return nullptr;
+
+ merge_size_type& col_merge_sizes = *it_col->second;
+ merge_size_type::const_iterator it_row = col_merge_sizes.find(row);
+ if (it_row == col_merge_sizes.end())
+ return nullptr;
+
+ return &it_row->second;
+}
+
+void html_dumper::build_overlapped_ranges()
+{
+ const sheet* sh = m_doc.get_sheet(m_sheet_id);
+ if (!sh)
+ return;
+
+ range_size_t sheet_size = m_doc.get_sheet_size();
+
+ detail::col_merge_size_type::const_iterator it_col = m_merge_ranges.begin(), it_col_end = m_merge_ranges.end();
+ for (; it_col != it_col_end; ++it_col)
+ {
+ col_t col = it_col->first;
+ const detail::merge_size_type& data = *it_col->second;
+ detail::merge_size_type::const_iterator it = data.begin(), it_end = data.end();
+ for (; it != it_end; ++it)
+ {
+ row_t row = it->first;
+ const detail::merge_size& item = it->second;
+ for (row_t i = 0; i < item.height; ++i, ++row)
+ {
+ // Get the container for this row.
+ detail::overlapped_cells_type::iterator it_cont = m_overlapped_ranges.find(row);
+ if (it_cont == m_overlapped_ranges.end())
+ {
+ auto p = std::make_unique<detail::overlapped_col_index_type>(0, sheet_size.columns, -1);
+ std::pair<detail::overlapped_cells_type::iterator, bool> r =
+ m_overlapped_ranges.insert(detail::overlapped_cells_type::value_type(row, std::move(p)));
+
+ if (!r.second)
+ {
+ // Insertion failed.
+ return;
+ }
+
+ it_cont = r.first;
+ }
+
+ detail::overlapped_col_index_type& cont = *it_cont->second;
+ cont.insert_back(col, col+item.width, col);
+ }
+ }
+ }
+
+ // Build trees.
+ for (auto& range : m_overlapped_ranges)
+ range.second->build_tree();
+}
+
+}}}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 04:07:25 +0000