3096d6066b
Replace the "[Table omitted]" placeholder with full table rendering: - Two-pass layout: buffer table content during SAX parsing, then calculate column widths and lay out cells after </table> closes - Colspan support for cells spanning multiple columns - Forced line breaks within cells (<br>, <p>, <div> etc.) - Center-align full-width spanning rows (section headers/titles) - Width hints from HTML attributes and CSS (col, td, th width) - Two-pass fair-share column width distribution that prevents narrow columns from being excessively squeezed - Double-encoded entity handling - PageTableRow with grid-line rendering and serialization support - Asymmetric vertical cell padding to balance font leading Co-authored-by: Cursor <cursoragent@cursor.com>
60 lines
3.1 KiB
C++
60 lines
3.1 KiB
C++
#pragma once
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#include <EpdFontFamily.h>
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#include <functional>
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#include <memory>
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#include <string>
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#include <vector>
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#include "blocks/BlockStyle.h"
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#include "blocks/TextBlock.h"
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class GfxRenderer;
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class ParsedText {
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std::vector<std::string> words;
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std::vector<EpdFontFamily::Style> wordStyles;
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std::vector<bool> wordContinues; // true = word attaches to previous (no space before it)
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std::vector<bool> forceBreakAfter; // true = mandatory line break after this word (e.g. <br> in table cells)
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BlockStyle blockStyle;
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bool extraParagraphSpacing;
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bool hyphenationEnabled;
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void applyParagraphIndent();
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std::vector<size_t> computeLineBreaks(const GfxRenderer& renderer, int fontId, int pageWidth, int spaceWidth,
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std::vector<uint16_t>& wordWidths, std::vector<bool>& continuesVec);
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std::vector<size_t> computeHyphenatedLineBreaks(const GfxRenderer& renderer, int fontId, int pageWidth,
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int spaceWidth, std::vector<uint16_t>& wordWidths,
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std::vector<bool>& continuesVec);
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bool hyphenateWordAtIndex(size_t wordIndex, int availableWidth, const GfxRenderer& renderer, int fontId,
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std::vector<uint16_t>& wordWidths, bool allowFallbackBreaks);
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void extractLine(size_t breakIndex, int pageWidth, int spaceWidth, const std::vector<uint16_t>& wordWidths,
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const std::vector<bool>& continuesVec, const std::vector<size_t>& lineBreakIndices,
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const std::function<void(std::shared_ptr<TextBlock>)>& processLine);
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std::vector<uint16_t> calculateWordWidths(const GfxRenderer& renderer, int fontId);
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public:
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explicit ParsedText(const bool extraParagraphSpacing, const bool hyphenationEnabled = false,
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const BlockStyle& blockStyle = BlockStyle())
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: blockStyle(blockStyle), extraParagraphSpacing(extraParagraphSpacing), hyphenationEnabled(hyphenationEnabled) {}
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~ParsedText() = default;
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void addWord(std::string word, EpdFontFamily::Style fontStyle, bool underline = false, bool attachToPrevious = false);
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/// Mark a forced line break after the last word (e.g. for <br> within table cells).
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/// If no words have been added yet, this is a no-op.
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void addLineBreak();
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void setBlockStyle(const BlockStyle& blockStyle) { this->blockStyle = blockStyle; }
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BlockStyle& getBlockStyle() { return blockStyle; }
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size_t size() const { return words.size(); }
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bool isEmpty() const { return words.empty(); }
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void layoutAndExtractLines(const GfxRenderer& renderer, int fontId, uint16_t viewportWidth,
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const std::function<void(std::shared_ptr<TextBlock>)>& processLine,
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bool includeLastLine = true);
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/// Returns the "natural" width of the content if it were laid out on a single line
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/// (sum of word widths + space widths between non-continuation words).
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/// Used by table layout to determine column widths before line-breaking.
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uint16_t getNaturalWidth(const GfxRenderer& renderer, int fontId) const;
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}; |