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/*
* This file is subject to the terms of the GFX License, v1.0. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://chibios-gfx.com/license.html
*/
/**
* @file src/gwin/console.c
* @brief GWIN sub-system console code.
*
* @defgroup Console Console
* @ingroup GWIN
*
* @{
*/
#include "gfx.h"
#if (GFX_USE_GWIN && GWIN_NEED_CONSOLE) || defined(__DOXYGEN__)
#include <string.h>
#include "gwin/internal.h"
#define GWIN_CONSOLE_USE_CLEAR_LINES TRUE
#define GWIN_CONSOLE_USE_FILLED_CHARS FALSE
/*
* Stream interface implementation. The interface is write only
*/
#if GFX_USE_OS_CHIBIOS
#define Stream2GWindow(ip) ((GHandle)(((char *)(ip)) - (size_t)(&(((GConsoleObject *)0)->stream))))
static size_t GWinStreamWrite(void *ip, const uint8_t *bp, size_t n) { gwinPutCharArray(Stream2GWindow(ip), (const char *)bp, n); return RDY_OK; }
static size_t GWinStreamRead(void *ip, uint8_t *bp, size_t n) { (void)ip; (void)bp; (void)n; return 0; }
static msg_t GWinStreamPut(void *ip, uint8_t b) { gwinPutChar(Stream2GWindow(ip), (char)b); return RDY_OK; }
static msg_t GWinStreamGet(void *ip) {(void)ip; return RDY_OK; }
static msg_t GWinStreamPutTimed(void *ip, uint8_t b, systime_t time) { (void)time; gwinPutChar(Stream2GWindow(ip), (char)b); return RDY_OK; }
static msg_t GWinStreamGetTimed(void *ip, systime_t timeout) { (void)ip; (void)timeout; return RDY_OK; }
static size_t GWinStreamWriteTimed(void *ip, const uint8_t *bp, size_t n, systime_t time) { (void)time; gwinPutCharArray(Stream2GWindow(ip), (const char *)bp, n); return RDY_OK; }
static size_t GWinStreamReadTimed(void *ip, uint8_t *bp, size_t n, systime_t time) { (void)ip; (void)bp; (void)n; (void)time; return 0; }
struct GConsoleWindowVMT_t {
_base_asynchronous_channel_methods
};
static const struct GConsoleWindowVMT_t GWindowConsoleVMT = {
GWinStreamWrite,
GWinStreamRead,
GWinStreamPut,
GWinStreamGet,
GWinStreamPutTimed,
GWinStreamGetTimed,
GWinStreamWriteTimed,
GWinStreamReadTimed
};
#endif
GHandle gwinCreateConsole(GConsoleObject *gc, coord_t x, coord_t y, coord_t width, coord_t height, font_t font) {
if (!(gc = (GConsoleObject *)_gwinInit((GWindowObject *)gc, x, y, width, height, sizeof(GConsoleObject))))
return 0;
gc->gwin.type = GW_CONSOLE;
gwinSetFont(&gc->gwin, font);
#if GFX_USE_OS_CHIBIOS
gc->stream.vmt = &GWindowConsoleVMT;
#endif
gc->cx = 0;
gc->cy = 0;
return (GHandle)gc;
}
#if GFX_USE_OS_CHIBIOS
BaseSequentialStream *gwinGetConsoleStream(GHandle gh) {
if (gh->type != GW_CONSOLE)
return 0;
return (BaseSequentialStream *)&(((GConsoleObject *)(gh))->stream);
}
#endif
void gwinPutChar(GHandle gh, char c) {
uint8_t width;
#define gcw ((GConsoleObject *)gh)
if (gh->type != GW_CONSOLE || !gh->font) return;
#if GDISP_NEED_CLIP
gdispSetClip(gh->x, gh->y, gh->width, gh->height);
#endif
if (c == '\n') {
gcw->cx = 0;
gcw->cy += gcw->fy;
// We use lazy scrolling here and only scroll when the next char arrives
} else if (c == '\r') {
// gcw->cx = 0;
} else {
width = gdispGetCharWidth(c, gh->font) + gcw->fp;
if (gcw->cx + width >= gh->width) {
gcw->cx = 0;
gcw->cy += gcw->fy;
}
if (gcw->cy + gcw->fy > gh->height) {
#if GDISP_NEED_SCROLL
/* scroll the console */
gdispVerticalScroll(gh->x, gh->y, gh->width, gh->height, gcw->fy, gh->bgcolor);
/* reset the cursor to the start of the last line */
gcw->cx = 0;
gcw->cy = (((coord_t)(gh->height/gcw->fy))-1)*gcw->fy;
#else
/* clear the console */
gdispFillArea(gh->x, gh->y, gh->width, gh->height, gh->bgcolor);
/* reset the cursor to the top of the window */
gcw->cx = 0;
gcw->cy = 0;
#endif
}
#if GWIN_CONSOLE_USE_CLEAR_LINES
/* clear to the end of the line */
if (gcw->cx == 0)
gdispFillArea(gh->x, gh->y + gcw->cy, gh->width, gcw->fy, gh->bgcolor);
#endif
#if GWIN_CONSOLE_USE_FILLED_CHARS
gdispFillChar(gh->x + gcw->cx, gh->y + gcw->cy, c, gh->font, gh->color, gh->bgcolor);
#else
gdispDrawChar(gh->x + gcw->cx, gh->y + gcw->cy, c, gh->font, gh->color);
#endif
/* update cursor */
gcw->cx += width;
}
#undef gcw
}
void gwinPutString(GHandle gh, const char *str) {
while(*str)
gwinPutChar(gh, *str++);
}
void gwinPutCharArray(GHandle gh, const char *str, size_t n) {
while(n--)
gwinPutChar(gh, *str++);
}
#endif /* GFX_USE_GWIN && GWIN_NEED_CONSOLE */
/** @} */
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