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/*
ChibiOS/GFX - Copyright (C) 2012
Joel Bodenmann aka Tectu <joel@unormal.org>
This file is part of ChibiOS/GFX.
ChibiOS/GFX is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/GFX is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file gwin.h
* @brief GWIN Graphic window subsystem header file.
*
* @addtogroup GWIN
* @{
*/
#ifndef _GWIN_H
#define _GWIN_H
#ifndef GFX_USE_GWIN
#define GFX_USE_GWIN FALSE
#endif
#if GFX_USE_GWIN || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @name GWIN more complex functionality to be compiled
* @{
*/
/** @} */
/*===========================================================================*/
/* Low Level Driver details and error checks. */
/*===========================================================================*/
#if !GFX_USE_GDISP
#error "GWIN: GFX_USE_GDISP must also be defined"
#endif
#include "gdisp.h"
#if !GDISP_NEED_CLIP
#warning "GWIN: Drawing can occur outside the defined window as GDISP_NEED_CLIP is FALSE"
#endif
/*===========================================================================*/
/* Type definitions */
/*===========================================================================*/
/**
* @extends BaseAsynchronousChannelVMT
*
* @brief @p GWindow virtual methods table.
*/
struct GWindowVMT {
_base_asynchronous_channel_methods
};
struct GWindowText {
const struct GWindowVMT *vmt;
_base_asynchronous_channel_data
font_t font; // Current font
uint8_t fy; // Current font height
uint8_t fp; // Current font inter-character spacing
coord_t cx,cy; // Cursor position
};
typedef struct GWindow_t {
#if GDISP_NEED_TEXT
struct GWindowText txt;
#endif
coord_t x, y; // Screen relative position
coord_t width, height; // Dimensions of this window
color_t color, bgcolor; // Current drawing colors
} GWindow;
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
/* Base Functions */
bool_t gwinInit(GWindow *gw, coord_t x, coord_t y, coord_t width, coord_t height);
/* Status Functions */
#define gwinGetScreenX(gw) ((gw)->x)
#define gwinGetScreenY(gw) ((gw)->y)
#define gwinGetWidth(gw) ((gw)->width)
#define gwinGetHeight(gw) ((gw)->height)
/* Set up for drawing */
#define gwinSetColor(gw, clr) (gw)->color = (clr)
#define gwinSetBgColor(gw, bgclr) (gw)->bgcolor = (bgclr)
/* Set up for text */
#if GDISP_NEED_TEXT
void gwinSetFont(GWindow *gw, font_t font);
#define gwinGetStream(gw) ((BaseSequentialStream *)gw)
#endif
/* Drawing Functions */
void gwinClear(GWindow *gw);
void gwinDrawPixel(GWindow *gw, coord_t x, coord_t y);
void gwinDrawLine(GWindow *gw, coord_t x0, coord_t y0, coord_t x1, coord_t y1);
void gwinDrawBox(GWindow *gw, coord_t x, coord_t y, coord_t cx, coord_t cy);
void gwinFillArea(GWindow *gw, coord_t x, coord_t y, coord_t cx, coord_t cy);
void gwinBlitArea(GWindow *gw, coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t srcx, coord_t srcy, coord_t srccx, const pixel_t *buffer);
/* Circle Functions */
#if GDISP_NEED_CIRCLE
void gwinDrawCircle(GWindow *gw, coord_t x, coord_t y, coord_t radius);
void gwinFillCircle(GWindow *gw, coord_t x, coord_t y, coord_t radius);
#endif
/* Ellipse Functions */
#if GDISP_NEED_ELLIPSE
void gwinDrawEllipse(GWindow *gw, coord_t x, coord_t y, coord_t a, coord_t b);
void gwinFillEllipse(GWindow *gw, coord_t x, coord_t y, coord_t a, coord_t b);
#endif
/* Arc Functions */
#if GDISP_NEED_ARC
void gwinDrawArc(GWindow *gw, coord_t x, coord_t y, coord_t radius, coord_t startangle, coord_t endangle);
void gwinFillArc(GWindow *gw, coord_t x, coord_t y, coord_t radius, coord_t startangle, coord_t endangle);
#endif
/* Read a pixel Function */
#if GDISP_NEED_PIXELREAD
color_t gwinGetPixelColor(GWindow *gw, coord_t x, coord_t y);
#endif
/* Scrolling Function - clears the area scrolled out */
#if GDISP_NEED_SCROLL
void gwinVerticalScroll(GWindow *gw, int lines);
#endif
/* Extra Text Functions */
#if GDISP_NEED_TEXT
void gwinDrawChar(GWindow *gw, coord_t x, coord_t y, char c);
void gwinFillChar(GWindow *gw, coord_t x, coord_t y, char c);
void gwinDrawString(GWindow *gw, coord_t x, coord_t y, const char *str);
void gwinFillString(GWindow *gw, coord_t x, coord_t y, const char *str);
void gwinBoxString(GWindow *gw, coord_t x, coord_t y, coord_t cx, coord_t cy, const char* str, justify_t justify);
void gwinPutChar(GWindow *gw, char c);
void gwinPutString(GWindow *gw, const char *str);
void gwinPutCharArray(GWindow *gw, const char *str, size_t n);
#endif
#ifdef __cplusplus
}
#endif
#endif /* GFX_USE_GWIN */
#endif /* _GWIN_H */
/** @} */
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