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Entry: use text32 (utf32) instead of text (utf8). This simplifies text editing and other features such as text masking (password)

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dec05eba
2025-08-07 00:13:59 +02:00
parent ff00be30df
commit 67a8040e57
4 changed files with 82 additions and 101 deletions
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27
include/gui/Entry.hpp
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@@ -4,7 +4,7 @@
#include <functional>
#include <mglpp/graphics/Color.hpp>
#include <mglpp/graphics/Text.hpp>
#include <mglpp/graphics/Text32.hpp>
#include <mglpp/graphics/Rectangle.hpp>
namespace gsr {
@@ -15,7 +15,12 @@ namespace gsr {
ALLOW,
REPLACED
};
using EntryValidateHandler = std::function<EntryValidateHandlerResult(Entry &entry, const std::string &str)>;
using EntryValidateHandler = std::function<EntryValidateHandlerResult(Entry &entry, const std::u32string &str)>;
struct CaretIndexPos {
int index;
mgl::vec2f pos;
};
class Entry : public Widget {
public:
@@ -33,11 +38,8 @@ namespace gsr {
mgl::vec2f get_size() override;
EntryValidateHandlerResult set_text(std::string str);
const std::string& get_text() const;
// Also updates the cursor position
void replace_text(size_t index, size_t size, const std::string &replacement);
EntryValidateHandlerResult set_text(const std::string &str);
std::string get_text() const;
// Return false to specify that the string should not be accepted. This reverts the string back to its previous value.
// The input can be changed by changing the input parameter and returning true.
@@ -45,20 +47,21 @@ namespace gsr {
std::function<void(const std::string &text)> on_changed;
private:
// Also updates the cursor position
void replace_text(size_t index, size_t size, const std::u32string &replacement);
void move_caret_word(Direction direction, size_t max_codepoints);
EntryValidateHandlerResult set_text_internal(std::string str);
EntryValidateHandlerResult set_text_internal(std::u32string str);
void draw_caret(mgl::Window &window, mgl::vec2f draw_pos, mgl::vec2f caret_size);
void draw_caret_selection(mgl::Window &window, mgl::vec2f draw_pos, mgl::vec2f caret_size);
mgl_index_codepoint_pair find_closest_caret_index_by_position(mgl::vec2f position);
CaretIndexPos find_closest_caret_index_by_position(mgl::vec2f position);
private:
struct Caret {
float offset_x = 0.0f;
int utf8_index = 0;
int byte_index = 0;
int index = 0;
};
mgl::Rectangle background;
mgl::Text text;
mgl::Text32 text;
float max_width;
bool selected = false;
bool selecting_text = false;