145 lines
5.3 KiB
C
145 lines
5.3 KiB
C
/*
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ChibiOS/GFX - Copyright (C) 2012
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Joel Bodenmann aka Tectu <joel@unormal.org>
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This file is part of ChibiOS/GFX.
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ChibiOS/GFX is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/GFX is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file include/gwin/console.h
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* @brief GWIN Graphic window subsystem header file.
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*
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* @defgroup Console Console
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* @ingroup GWIN
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*
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* @details GWIN allows it to create a console/terminal like window.
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* You can simply use chprintf() to print to the terminal.
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*
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* @pre GFX_USE_GWIN must be set to TRUE in your gfxconf.h
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* @pre GWIN_NEED_CONSOLE must be set to TRUE in your gfxconf.h
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*
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* @{
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*/
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#ifndef _GWIN_CONSOLE_H
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#define _GWIN_CONSOLE_H
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#if GWIN_NEED_CONSOLE || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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#define GW_CONSOLE 0x0001
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/*===========================================================================*/
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/* Type definitions */
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/*===========================================================================*/
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// A console window. Supports wrapped text writing and a cursor.
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typedef struct GConsoleObject_t {
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GWindowObject gwin;
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struct GConsoleWindowStream_t {
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const struct GConsoleWindowVMT_t *vmt;
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_base_asynchronous_channel_data
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} stream;
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coord_t cx,cy; // Cursor position
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uint8_t fy; // Current font height
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uint8_t fp; // Current font inter-character spacing
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} GConsoleObject;
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Create a console window.
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* @details A console window allows text to be written using chprintf() (and the console functions defined here).
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* @brief Text in a console window supports newlines and will wrap text as required.
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* @return NULL if there is no resultant drawing area, otherwise a window handle.
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*
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* @param[in] gc The GConsoleObject structure to initialise. If this is NULL the structure is dynamically allocated.
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* @param[in] x,y The screen co-ordinates for the bottom left corner of the window
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* @param[in] width The width of the window
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* @param[in] height The height of the window
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* @param[in] font The font to use
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* @note The console is not automatically cleared on creation. You must do that by calling gwinClear() (possibly after changing your background color)
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* @note If the dispay does not support scrolling, the window will be cleared when the bottom line is reached.
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* @note The default drawing color gets set to White and the background drawing color to Black.
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* @note The dimensions and position may be changed to fit on the real screen.
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*
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* @api
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*/
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GHandle gwinCreateConsole(GConsoleObject *gc, coord_t x, coord_t y, coord_t width, coord_t height, font_t font);
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/**
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* @brief Get a stream from a console window suitable for use with chprintf().
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* @return The stream handle or NULL if this is not a console window.
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*
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* @param[in] gh The window handle (must be a console window)
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*
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* @api
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*/
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BaseSequentialStream *gwinGetConsoleStream(GHandle gh);
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/**
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* @brief Put a character at the cursor position in the window.
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* @note Uses the current foreground color to draw the character and fills the background using the background drawing color
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*
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* @param[in] gh The window handle (must be a console window)
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* @param[in] c The character to draw
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*
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* @api
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*/
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void gwinPutChar(GHandle gh, char c);
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/**
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* @brief Put a string at the cursor position in the window. It will wrap lines as required.
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* @note Uses the current foreground color to draw the string and fills the background using the background drawing color
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*
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* @param[in] gh The window handle (must be a console window)
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* @param[in] str The string to draw
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*
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* @api
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*/
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void gwinPutString(GHandle gh, const char *str);
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/**
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* @brief Put the character array at the cursor position in the window. It will wrap lines as required.
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* @note Uses the current foreground color to draw the string and fills the background using the background drawing color
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*
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* @param[in] gh The window handle (must be a console window)
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* @param[in] str The string to draw
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* @param[in] n The number of characters to draw
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*
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* @api
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*/
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void gwinPutCharArray(GHandle gh, const char *str, size_t n);
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#ifdef __cplusplus
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}
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#endif
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#endif /* GWIN_NEED_CONSOLE */
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#endif /* _GWIN_CONSOLE_H */
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/** @} */
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