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Textbox mostly works with text other than ASCII

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This commit is contained in:
Yousef Khadadeh 2025-10-18 13:32:12 +03:00
parent e507473e3a
commit 295529586c
3 changed files with 383 additions and 83 deletions
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44
src/RichTextBox/RichTextBox.hpp
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@ -14,25 +14,39 @@ class RichTextBox {
RIGHT,
UP,
DOWN,
LEFT_WORD,
RIGHT_WORD,
HOME,
END
};
struct TextPosition {
// Set to uint32_t values because theyll be saved and sent over networks. Size has to be consistent
size_t fTextByteIndex = std::numeric_limits<uint32_t>::max();
size_t fParagraphIndex = std::numeric_limits<uint32_t>::max();
template <typename Archive> void serialize(Archive& a) {
a((uint32_t)fTextByteIndex, (uint32_t)fParagraphIndex);
}
bool operator==(const TextPosition& o) const = default;
bool operator<(const TextPosition& o) const;
};
struct Cursor {
uint64_t pos = 0;
uint64_t selectionBeginPos = 0;
uint64_t selectionEndPos = 0;
TextPosition pos = {0, 0};
TextPosition selectionBeginPos = {0, 0};
TextPosition selectionEndPos = {0, 0};
std::optional<float> previousX;
};
struct PaintOpts {
SkColor4f cursorColor = {1, 0, 0, 1};
Vector3f cursorColor = {1, 0, 0};
std::optional<Cursor> cursor;
};
uint64_t move(Movement movement, uint64_t pos);
TextPosition move(Movement movement, TextPosition pos, std::optional<float>* previousX = nullptr);
void set_width(float newWidth);
uint64_t insert(uint64_t pos, const std::string& textToInsert);
uint64_t remove(uint64_t start, uint64_t end);
TextPosition insert(TextPosition pos, const std::string& textToInsert);
TextPosition remove(TextPosition start, TextPosition end);
void set_font_collection(const sk_sp<skia::textlayout::FontCollection>& fC);
void paint(SkCanvas* canvas, const PaintOpts& paintOpts);
void set_allow_newlines(bool allow);
@ -50,17 +64,29 @@ class RichTextBox {
SELECT_ALL
};
void process_mouse_left_button(Cursor& cur, const Vector2f& pos, bool clicked, bool held, bool shift);
void process_key_input(Cursor& cur, InputKey in, bool ctrl, bool shift);
std::string process_copy(Cursor& cur);
std::string process_cut(Cursor& cur);
void process_text_input(Cursor& cur, const std::string& in);
private:
SkRect get_cursor_rect(uint64_t pos);
size_t count_grapheme();
size_t next_grapheme(size_t textBytePos);
size_t prev_grapheme(size_t textBytePos);
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);
SkRect get_cursor_rect(TextPosition pos);
std::optional<TextPosition> get_text_pos_closest_to_point(const Vector2f& point);
void rebuild();
bool newlinesAllowed = true;
float width = 100.0f;
float width = 0.0f;
float fontSize = 0.0f;
bool needsRebuild = true;
sk_sp<skia::textlayout::FontCollection> fontCollection;