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Separated RichTextBox into different paragraphs

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This commit is contained in:
Yousef Khadadeh 2025-10-19 15:54:00 +03:00
parent 295529586c
commit cd89744bbe
2 changed files with 291 additions and 213 deletions
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32
src/RichTextBox/RichTextBox.hpp
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@ -10,6 +10,7 @@ class RichTextBox {
RichTextBox();
enum class Movement {
NOWHERE,
LEFT,
RIGHT,
UP,
@ -45,8 +46,8 @@ class RichTextBox {
TextPosition move(Movement movement, TextPosition pos, std::optional<float>* previousX = nullptr);
void set_width(float newWidth);
TextPosition insert(TextPosition pos, const std::string& textToInsert);
TextPosition remove(TextPosition start, TextPosition end);
TextPosition insert(TextPosition pos, std::string_view textToInsert);
TextPosition remove(TextPosition p1, TextPosition p2);
void set_font_collection(const sk_sp<skia::textlayout::FontCollection>& fC);
void paint(SkCanvas* canvas, const PaintOpts& paintOpts);
void set_allow_newlines(bool allow);
@ -68,20 +69,23 @@ class RichTextBox {
void process_key_input(Cursor& cur, InputKey in, bool ctrl, bool shift);
std::string process_copy(Cursor& cur);
std::string process_cut(Cursor& cur);
std::string get_text_between(TextPosition p1, TextPosition p2);
void process_text_input(Cursor& cur, const std::string& in);
private:
size_t count_grapheme();
size_t next_grapheme(size_t textBytePos);
size_t prev_grapheme(size_t textBytePos);
static size_t count_grapheme(const std::string& text);
static size_t next_grapheme(const std::string& text, size_t textBytePos);
static size_t prev_grapheme(const std::string& text, size_t textBytePos);
static TextPosition get_text_pos_from_byte_pos(const std::string& text, size_t textBytePos);
size_t get_byte_pos_from_text_pos(TextPosition textPos);
std::vector<skia::textlayout::TextBox> rects_between_text_positions(TextPosition start, TextPosition end);
std::vector<SkRect> rects_between_text_positions_2(TextPosition start, TextPosition end);
void rects_between_text_positions_func(TextPosition start, TextPosition end, std::function<void(const SkRect& r)> f);
void rects_between_text_positions_func(TextPosition p1, TextPosition p2, std::function<void(const SkRect& r)> f);
TextPosition line_ends_with_whitespace_correction(TextPosition pos);
SkRect get_cursor_rect(TextPosition pos);
std::optional<TextPosition> get_text_pos_closest_to_point(const Vector2f& point);
TextPosition get_text_pos_closest_to_point(Vector2f point);
void rebuild();
@ -90,6 +94,12 @@ class RichTextBox {
float fontSize = 0.0f;
bool needsRebuild = true;
sk_sp<skia::textlayout::FontCollection> fontCollection;
std::unique_ptr<skia::textlayout::Paragraph> paragraph;
std::string text;
struct ParagraphData {
std::string text;
std::unique_ptr<skia::textlayout::Paragraph> p;
float heightOffset;
};
std::vector<ParagraphData> paragraphs;
};