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Diffstat (limited to 'dependencies/SDL/SDL_test_font.h')
| -rw-r--r-- | dependencies/SDL/SDL_test_font.h | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/dependencies/SDL/SDL_test_font.h b/dependencies/SDL/SDL_test_font.h new file mode 100644 index 0000000..6e7247d --- /dev/null +++ b/dependencies/SDL/SDL_test_font.h @@ -0,0 +1,168 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org> + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ + +/** + * \file SDL_test_font.h + * + * Include file for SDL test framework. + * + * This code is a part of the SDL2_test library, not the main SDL library. + */ + +#ifndef SDL_test_font_h_ +#define SDL_test_font_h_ + +#include "begin_code.h" +/* Set up for C function definitions, even when using C++ */ +#ifdef __cplusplus +extern "C" { +#endif + +/* Function prototypes */ + +#define FONT_CHARACTER_SIZE 8 +#define FONT_LINE_HEIGHT (FONT_CHARACTER_SIZE + 2) + +/** + * \brief Draw a string in the currently set font. + * + * \param renderer The renderer to draw on. + * \param x The X coordinate of the upper left corner of the character. + * \param y The Y coordinate of the upper left corner of the character. + * \param c The character to draw. + * + * \returns 0 on success, -1 on failure. + */ +int SDLTest_DrawCharacter(SDL_Renderer *renderer, int x, int y, Uint32 c); + +/** + * \brief Draw a UTF-8 string in the currently set font. + * + * The font currently only supports characters in the Basic Latin and Latin-1 Supplement sets. + * + * \param renderer The renderer to draw on. + * \param x The X coordinate of the upper left corner of the string. + * \param y The Y coordinate of the upper left corner of the string. + * \param s The string to draw. + * + * \returns 0 on success, -1 on failure. + */ +int SDLTest_DrawString(SDL_Renderer *renderer, int x, int y, const char *s); + +/** + * \brief Data used for multi-line text output + */ +typedef struct SDLTest_TextWindow +{ + SDL_Rect rect; + int current; + int numlines; + char **lines; +} SDLTest_TextWindow; + +/** + * \brief Create a multi-line text output window + * + * \param x The X coordinate of the upper left corner of the window. + * \param y The Y coordinate of the upper left corner of the window. + * \param w The width of the window (currently ignored) + * \param h The height of the window (currently ignored) + * + * \returns the new window, or NULL on failure. + * + * \since This function is available since SDL 2.24.0 + */ +SDLTest_TextWindow *SDLTest_TextWindowCreate(int x, int y, int w, int h); + +/** + * \brief Display a multi-line text output window + * + * This function should be called every frame to display the text + * + * \param textwin The text output window + * \param renderer The renderer to use for display + * + * \since This function is available since SDL 2.24.0 + */ +void SDLTest_TextWindowDisplay(SDLTest_TextWindow *textwin, SDL_Renderer *renderer); + +/** + * \brief Add text to a multi-line text output window + * + * Adds UTF-8 text to the end of the current text. The newline character starts a + * new line of text. The backspace character deletes the last character or, if the + * line is empty, deletes the line and goes to the end of the previous line. + * + * \param textwin The text output window + * \param fmt A printf() style format string + * \param ... additional parameters matching % tokens in the `fmt` string, if any + * + * \since This function is available since SDL 2.24.0 + */ +void SDLTest_TextWindowAddText(SDLTest_TextWindow *textwin, SDL_PRINTF_FORMAT_STRING const char *fmt, ...) SDL_PRINTF_VARARG_FUNC(2); + +/** + * \brief Add text to a multi-line text output window + * + * Adds UTF-8 text to the end of the current text. The newline character starts a + * new line of text. The backspace character deletes the last character or, if the + * line is empty, deletes the line and goes to the end of the previous line. + * + * \param textwin The text output window + * \param text The text to add to the window + * \param len The length, in bytes, of the text to add to the window + * + * \since This function is available since SDL 2.24.0 + */ +void SDLTest_TextWindowAddTextWithLength(SDLTest_TextWindow *textwin, const char *text, size_t len); + +/** + * \brief Clear the text in a multi-line text output window + * + * \param textwin The text output window + * + * \since This function is available since SDL 2.24.0 + */ +void SDLTest_TextWindowClear(SDLTest_TextWindow *textwin); + +/** + * \brief Free the storage associated with a multi-line text output window + * + * \param textwin The text output window + * + * \since This function is available since SDL 2.24.0 + */ +void SDLTest_TextWindowDestroy(SDLTest_TextWindow *textwin); + +/** + * \brief Cleanup textures used by font drawing functions. + */ +void SDLTest_CleanupTextDrawing(void); + +/* Ends C function definitions when using C++ */ +#ifdef __cplusplus +} +#endif +#include "close_code.h" + +#endif /* SDL_test_font_h_ */ + +/* vi: set ts=4 sw=4 expandtab: */ |