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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.c
* @brief GWIN Driver code.
*
* @addtogroup GWIN
* @{
*/
#include "ch.h"
#include "hal.h"
#include "gwin.h"
#ifndef _GWIN_C
#define _GWIN_C
#if GFX_USE_GWIN || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
#if GDISP_NEED_TEXT
/*
* Stream interface implementation. The interface is write only
*/
static size_t GWinStreamWrite(void *ip, const uint8_t *bp, size_t n) { gwinPutCharArray((GWindow *)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((GWindow *)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((GWindow *)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((GWindow *)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; }
static const struct GWindowVMT vmt = {
GWinStreamWrite,
GWinStreamRead,
GWinStreamPut,
GWinStreamGet,
GWinStreamPutTimed,
GWinStreamGetTimed,
GWinStreamWriteTimed,
GWinStreamReadTimed
};
#endif
/*===========================================================================*/
/* High Level Driver Routines. */
/*===========================================================================*/
/**
* @brief Initialise a window.
* @return FALSE if there is no resultant drawing area, otherwise TRUE.
*
* @param[in] gw The window to initialise
* @param[in] x,y The screen co-ordinates for the bottom left corner of the window
* @param[in] width The width of the window
* @param[in] height The height of the window
* @note The drawing color gets set to White and the background drawing color to Black.
* @note No default font is set so make sure to set one before drawing any text.
* @note The dimensions and position may be changed to fit on the real screen.
*
* @api
*/
bool_t gwinInit(GWindow *gw, coord_t x, coord_t y, coord_t width, coord_t height) {
coord_t w, h;
w = gdispGetWidth();
h = gdispGetHeight();
if (x < 0) { width += x; x = 0; }
if (y < 0) { height += y; y = 0; }
if (x >= w || y >= h) return FALSE;
if (x+width > w) width = w - x;
if (y+height > h) height = h - y;
gw->x = x;
gw->y = y;
gw->width = width;
gw->height = height;
gw->color = White;
gw->bgcolor = Black;
#if GDISP_NEED_TEXT
gw->txt.font = 0;
gw->txt.fy = 0;
gw->txt.fp = 0;
gw->txt.cx = 0;
gw->txt.cy = 0;
gw->txt.vmt = &vmt;
#endif
return TRUE;
}
#if GDISP_NEED_TEXT
/**
* @brief Set the current font for this window.
* @pre The window must be initialised.
*
* @param[in] gw The window
* @param[in] font The font to use for text functions
*
* @api
*/
void gwinSetFont(GWindow *gw, font_t font) {
gw->txt.font = font;
gw->txt.fy = gdispGetFontMetric(font, fontHeight);
gw->txt.fp = gdispGetFontMetric(font, fontCharPadding);
}
#endif
/**
* @brief Clear the window
* @pre The window must be initialised.
* @note Uses the current background color to clear the window
*
* @param[in] gw The window
*
* @api
*/
void gwinClear(GWindow *gw) {
gdispFillArea(gw->x, gw->y, gw->width, gw->height, gw->bgcolor);
}
/**
* @brief Set a pixel in the window
* @pre The window must be initialised.
* @note Uses the current foreground color to set the pixel
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] gw The window
*
* @api
*/
void gwinDrawPixel(GWindow *gw, coord_t x, coord_t y) {
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispDrawPixel(gw->x+x, gw->y+y, gw->color);
}
/**
* @brief Draw a line in the window
* @pre The window must be initialised.
* @note Uses the current foreground color to draw the line
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] gw The window
* @param[in] x0,y0 The start position
* @param[in] x1,y1 The end position
*
* @api
*/
void gwinDrawLine(GWindow *gw, coord_t x0, coord_t y0, coord_t x1, coord_t y1) {
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispDrawLine(gw->x+x0, gw->y+y0, gw->x+x1, gw->y+y1, gw->color);
}
/**
* @brief Draw a box in the window
* @pre The window must be initialised.
* @note Uses the current foreground color to draw the box
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] gw The window
* @param[in] x,y The start position
* @param[in] cx,cy The size of the box (outside dimensions)
*
* @api
*/
void gwinDrawBox(GWindow *gw, coord_t x, coord_t y, coord_t cx, coord_t cy) {
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispDrawBox(gw->x+x, gw->y+y, cx, cy, gw->color);
}
/**
* @brief Fill an rectangular area in the window
* @pre The window must be initialised.
* @note Uses the current foreground color to fill the box
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] gw The window
* @param[in] x,y The start position
* @param[in] cx,cy The size of the box (outside dimensions)
*
* @api
*/
void gwinFillArea(GWindow *gw, coord_t x, coord_t y, coord_t cx, coord_t cy) {
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispFillArea(gw->x+x, gw->y+y, cx, cy, gw->color);
}
/**
* @brief Fill an area in the window using the supplied bitmap.
* @details The bitmap is in the pixel format specified by the low level driver
* @pre The window must be initialised.
* @note If GDISP_NEED_ASYNC is defined then the buffer must be static
* or at least retained until this call has finished the blit. You can
* tell when all graphics drawing is finished by @p gdispIsBusy() going FALSE.
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] x, y The start filled area
* @param[in] cx, cy The width and height to be filled
* @param[in] srcx, srcy The bitmap position to start the fill from
* @param[in] srccx The width of a line in the bitmap.
* @param[in] buffer The pixels to use to fill the area.
*
* @api
*/
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) {
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispBlitAreaEx(gw->x+x, gw->y+y, cx, cy, srcx, srcy, srccx, buffer);
}
#if GDISP_NEED_CIRCLE
/**
* @brief Draw a circle in the window.
* @pre The window must be initialised.
* @note Uses the current foreground color to draw the circle
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] x, y The center of the circle
* @param[in] radius The radius of the circle
*
* @api
*/
void gwinDrawCircle(GWindow *gw, coord_t x, coord_t y, coord_t radius) {
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispDrawCircle(gw->x+x, gw->y+y, radius, gw->color);
}
#endif
#if GDISP_NEED_CIRCLE
/**
* @brief Draw a filled circle in the window.
* @pre The window must be initialised.
* @note Uses the current foreground color to draw the filled circle
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] x, y The center of the circle
* @param[in] radius The radius of the circle
*
* @api
*/
void gwinFillCircle(GWindow *gw, coord_t x, coord_t y, coord_t radius) {
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispFillCircle(gw->x+x, gw->y+y, radius, gw->color);
}
#endif
#if GDISP_NEED_ELLIPSE
/**
* @brief Draw an ellipse.
* @pre The window must be initialised.
* @note Uses the current foreground color to draw the ellipse
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] x,y The center of the ellipse
* @param[in] a,b The dimensions of the ellipse
*
* @api
*/
void gwinDrawEllipse(GWindow *gw, coord_t x, coord_t y, coord_t a, coord_t b) {
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispDrawEllipse(gw->x+x, gw->y+y, a, b, gw->color);
}
#endif
#if GDISP_NEED_ELLIPSE
/**
* @brief Draw an filled ellipse.
* @pre The window must be initialised.
* @note Uses the current foreground color to draw the filled ellipse
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] x,y The center of the ellipse
* @param[in] a,b The dimensions of the ellipse
*
* @api
*/
void gwinFillEllipse(GWindow *gw, coord_t x, coord_t y, coord_t a, coord_t b) {
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispFillEllipse(gw->x+x, gw->y+y, a, b, gw->color);
}
#endif
#if GDISP_NEED_ARC
/*
* @brief Draw an arc in the window.
* @pre The window must be initialised.
* @note Uses the current foreground color to draw the arc
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] x,y The center point
* @param[in] radius The radius of the arc
* @param[in] start The start angle (0 to 360)
* @param[in] end The end angle (0 to 360)
*
* @api
*/
void gwinDrawArc(GWindow *gw, coord_t x, coord_t y, coord_t radius, coord_t startangle, coord_t endangle) {
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispDrawArc(gw->x+x, gw->y+y, radius, startangle, endangle, gw->color);
}
#endif
#if GDISP_NEED_ARC
/*
* @brief Draw a filled arc in the window.
* @pre The window must be initialised.
* @note Uses the current foreground color to draw the filled arc
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] x,y The center point
* @param[in] radius The radius of the arc
* @param[in] start The start angle (0 to 360)
* @param[in] end The end angle (0 to 360)
*
* @api
*/
void gwinFillArc(GWindow *gw, coord_t x, coord_t y, coord_t radius, coord_t startangle, coord_t endangle) {
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispFillArc(gw->x+x, gw->y+y, radius, startangle, endangle, gw->color);
}
#endif
#if GDISP_NEED_PIXELREAD
/**
* @brief Get the color of a pixel in the window.
* @pre The window must be initialised.
* @return The color of the pixel.
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] x,y The position in the window
*
* @api
*/
color_t gwinGetPixelColor(GWindow *gw, coord_t x, coord_t y) {
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
return gdispGetPixelColor(gw->x+x, gw->y+y);
}
#endif
#if GDISP_NEED_SCROLL
/**
* @brief Scroll vertically a section of the window.
* @pre The window must be initialised.
* @note If lines is >= cy, it is equivelent to a area fill with the current background drawing color.
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] lines The number of lines to scroll (Can be positive or negative)
*
* @api
*/
void gwinVerticalScroll(GWindow *gw, int lines) {
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispVerticalScroll(gw->x, gw->y, gw->width, gw->height, lines, gw->bgcolor);
}
#endif
#if GDISP_NEED_TEXT
/**
* @brief Draw a text character at the specified position in the window.
* @pre The window must be initialised.
* @pre The font must have been set.
* @note Uses the current foreground color to draw the character
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] x,y The position for the text
* @param[in] c The character to draw
*
* @api
*/
void gwinDrawChar(GWindow *gw, coord_t x, coord_t y, char c) {
if (!gw->txt.font) return;
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispDrawChar(gw->x+x, gw->y+y, c, gw->txt.font, gw->color);
}
#endif
#if GDISP_NEED_TEXT
/**
* @brief Draw a text character with a filled background at the specified position in the window.
* @pre The window must be initialised.
* @pre The font must have been set.
* @note Uses the current foreground color to draw the character and fills the background using the background drawing color
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] x,y The position for the text
* @param[in] c The character to draw
*
* @api
*/
void gwinFillChar(GWindow *gw, coord_t x, coord_t y, char c) {
if (!gw->txt.font) return;
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispFillChar(gw->x+x, gw->y+y, c, gw->txt.font, gw->color, gw->bgcolor);
}
#endif
#if GDISP_NEED_TEXT
/**
* @brief Draw a text string in the window
* @pre The window must be initialised.
* @pre The font must have been set.
* @note Uses the current foreground color to draw the character
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] x,y The position for the text
* @param[in] str The string to draw
*
* @api
*/
void gwinDrawString(GWindow *gw, coord_t x, coord_t y, const char *str) {
if (!gw->txt.font) return;
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispDrawString(gw->x+x, gw->y+y, str, gw->txt.font, gw->color);
}
#endif
#if GDISP_NEED_TEXT
/**
* @brief Draw a text string with a filled background in the window
* @pre The window must be initialised.
* @pre The font must have been set.
* @note Uses the current foreground color to draw the character and fills the background using the background drawing color
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] x,y The position for the text
* @param[in] str The string to draw
*
* @api
*/
void gwinFillString(GWindow *gw, coord_t x, coord_t y, const char *str) {
if (!gw->txt.font) return;
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispFillString(gw->x+x, gw->y+y, str, gw->txt.font, gw->color, gw->bgcolor);
}
#endif
#if GDISP_NEED_TEXT
/**
* @brief Draw a text string verticly centered within the specified box.
* @pre The window must be initialised.
* @pre The font must have been set.
* @note Uses the current foreground color to draw the character and fills the background using the background drawing color
* @note The entire box is filled. Note this box does not need to align with the window box
* @note May leave GDISP clipping to this window's dimensions
*
* @param[in] x,y The position for the text (need to define top-right or base-line - check code)
* @param[in] str The string to draw
* @param[in] justify Justify the text left, center or right within the box
*
* @api
*/
void gwinBoxString(GWindow *gw, coord_t x, coord_t y, coord_t cx, coord_t cy, const char* str, justify_t justify) {
if (!gw->txt.font) return;
#if GDISP_SET_CLIP
gdispSetClip(gw->x, gw->y+y, gw->width, gw->height);
#endif
gdispFillStringBox(gw->x+x, gw->y+y, cx, cy, str, gw->txt.font, gw->color, gw->bgcolor, justify);
}
#endif
#if GDISP_NEED_TEXT
/**
* @brief Put a character at the cursor position in the window.
* @pre The window must be initialised.
* @pre The font must have been set.
* @note Uses the current foreground color to draw the character and fills the background using the background drawing color
*
* @param[in] c The character to draw
*
* @api
*/
void gwinPutChar(GWindow *gw, char c) {
uint8_t width;
if (!gw->txt.font) return;
if (c == '\n') {
/* clear the text at the end of the line */
if (gw->txt.cx < gw->width)
gdispFillArea(gw->x + gw->txt.cx, gw->y + gw->txt.cy, gw->width - gw->txt.cx, gw->txt.fy, gw->bgcolor);
gw->txt.cx = 0;
gw->txt.cy += gw->txt.fy;
} else if (c == '\r') {
// gw->cx = 0;
} else {
width = gdispGetCharWidth(c, gw->txt.font) + gw->txt.fp;
if (gw->txt.cx + width >= gw->width) {
/* clear the text at the end of the line */
if (gw->txt.cy + gw->txt.fy <= gw->height)
gdispFillArea(gw->x + gw->txt.cx, gw->y + gw->txt.cy, gw->width - (gw->txt.cx + width), gw->txt.fy, gw->bgcolor);
gw->txt.cx = 0;
gw->txt.cy += gw->txt.fy;
}
if (gw->txt.cy + gw->txt.fy > gw->height) {
#if GDISP_NEED_SCROLL
/* scroll the console */
gdispVerticalScroll(gw->x, gw->y, gw->width, gw->height, gw->txt.fy, gw->bgcolor);
/* reset the cursor to the start of the last line */
gw->txt.cx = 0;
gw->txt.cy = (((int16_t)(gw->height/gw->txt.fy))-1)*gw->txt.fy;
#else
/* clear the console */
gdispFillArea(gw->x, gw->y, gw->width, gw->height, gw->bgcolor);
/* reset the cursor to the top of the window */
gw->txt.cx = 0;
gw->txt.cy = 0;
#endif
}
gdispDrawChar(gw->x + gw->txt.cx, gw->y + gw->txt.cy, c, gw->txt.font, gw->color);
/* update cursor */
gw->txt.cx += width;
}
}
#endif
#if GDISP_NEED_TEXT
/**
* @brief Put a string at the cursor position in the window. It will wrap lines as required.
* @pre The window must be initialised.
* @pre The font must have been set.
* @note Uses the current foreground color to draw the string and fills the background using the background drawing color
*
* @param[in] str The string to draw
*
* @api
*/
void gwinPutString(GWindow *gw, const char *str) {
while(*str)
gwinPutChar(gw, *str++);
}
#endif
#if GDISP_NEED_TEXT
/**
* @brief Put the character array at the cursor position in the window. It will wrap lines as required.
* @pre The window must be initialised.
* @pre The font must have been set.
* @note Uses the current foreground color to draw the string and fills the background using the background drawing color
*
* @param[in] str The string to draw
* @param[in] n The number of characters to draw
*
* @api
*/
void gwinPutCharArray(GWindow *gw, const char *str, size_t n) {
while(n--)
gwinPutChar(gw, *str++);
}
#endif
#endif /* GFX_USE_GWIN */
#endif /* _GWIN_C */
/** @} */
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