Public release

lib/Epub/Epub/blocks/TextBlock.h

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+#pragma once
+#include <list>
+#include <string>
+#include <vector>
+
+#include "Block.h"
+
+enum SPAN_STYLE : uint8_t {
+  BOLD_SPAN = 1,
+  ITALIC_SPAN = 2,
+};
+
+enum BLOCK_STYLE : uint8_t {
+  JUSTIFIED = 0,
+  LEFT_ALIGN = 1,
+  CENTER_ALIGN = 2,
+  RIGHT_ALIGN = 3,
+};
+
+// represents a block of words in the html document
+class TextBlock final : public Block {
+  // pointer to each word
+  std::vector<std::string> words;
+  // x position of each word
+  std::vector<uint16_t> wordXpos;
+  // the styles of each word
+  std::vector<uint8_t> wordStyles;
+
+  // the style of the block - left, center, right aligned
+  BLOCK_STYLE style;
+
+ public:
+  void addSpan(const std::string& span, bool is_bold, bool is_italic);
+  explicit TextBlock(const BLOCK_STYLE style) : style(style) {}
+  explicit TextBlock(const std::vector<std::string>& words, const std::vector<uint16_t>& word_xpos,
+                     // the styles of each word
+                     const std::vector<uint8_t>& word_styles, const BLOCK_STYLE style)
+      : words(words), wordXpos(word_xpos), wordStyles(word_styles), style(style) {}
+  ~TextBlock() override = default;
+  void set_style(const BLOCK_STYLE style) { this->style = style; }
+  BLOCK_STYLE get_style() const { return style; }
+  bool isEmpty() override { return words.empty(); }
+  void layout(EpdRenderer* renderer) override {};
+  // given a renderer works out where to break the words into lines
+  std::list<TextBlock*> splitIntoLines(const EpdRenderer* renderer);
+  void render(const EpdRenderer* renderer, int x, int y) const;
+  BlockType getType() override { return TEXT_BLOCK; }
+  void serialize(std::ostream& os) const;
+  static TextBlock* deserialize(std::istream& is);
+};