83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/*
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Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely.
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*/
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/* This is an example of using SDL_ttf to create a multi-line editbox
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* with full IME support.
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*/
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#include <SDL3/SDL.h>
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#include <SDL3_ttf/SDL_ttf.h>
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/* Define this if you want to test the surface text engine */
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#define TEST_SURFACE_ENGINE
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typedef struct EditBox {
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SDL_Window *window;
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SDL_Renderer *renderer;
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TTF_Font *font;
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TTF_Text *text;
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SDL_FRect rect;
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bool has_focus;
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/* Cursor support */
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int cursor;
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int cursor_length;
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bool cursor_visible;
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Uint64 last_cursor_change;
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SDL_FRect cursor_rect;
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/* Highlight support */
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bool highlighting;
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int highlight1;
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int highlight2;
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/* IME composition */
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int composition_start;
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int composition_length;
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int composition_cursor;
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int composition_cursor_length;
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/* IME candidates */
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TTF_Text *candidates;
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int selected_candidate_start;
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int selected_candidate_length;
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#ifdef TEST_SURFACE_ENGINE
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SDL_Surface *window_surface;
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#endif
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} EditBox;
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extern EditBox *EditBox_Create(SDL_Window *window, SDL_Renderer *renderer, TTF_TextEngine *engine, TTF_Font *font, const SDL_FRect *rect);
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extern void EditBox_Destroy(EditBox *edit);
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extern void EditBox_SetFocus(EditBox *edit, bool focus);
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extern void EditBox_Draw(EditBox *edit);
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extern void EditBox_MoveCursorLeft(EditBox *edit);
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extern void EditBox_MoveCursorRight(EditBox *edit);
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extern void EditBox_MoveCursorUp(EditBox *edit);
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extern void EditBox_MoveCursorDown(EditBox *edit);
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extern void EditBox_MoveCursorBeginningOfLine(EditBox *edit);
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extern void EditBox_MoveCursorEndOfLine(EditBox *edit);
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extern void EditBox_MoveCursorBeginning(EditBox *edit);
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extern void EditBox_MoveCursorEnd(EditBox *edit);
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extern void EditBox_Backspace(EditBox *edit);
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extern void EditBox_BackspaceToBeginning(EditBox *edit);
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extern void EditBox_DeleteToEnd(EditBox *edit);
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extern void EditBox_Delete(EditBox *edit);
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extern void EditBox_SelectAll(EditBox *edit);
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extern bool EditBox_DeleteHighlight(EditBox *edit);
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extern void EditBox_Copy(EditBox *edit);
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extern void EditBox_Cut(EditBox *edit);
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extern void EditBox_Paste(EditBox *edit);
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extern void EditBox_Insert(EditBox *edit, const char *text);
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extern bool EditBox_HandleEvent(EditBox *edit, SDL_Event *event);
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