From c5f9012fd6b23dac3e81ddeae4dfc1c19fa752f0 Mon Sep 17 00:00:00 2001
From: Andrew Hannam <andrewh@inmarket.com.au>
Date: Sat, 27 Oct 2012 23:05:00 +1000
Subject: Implement gdispFillArc. Add GWIN windows.
Implement gdispFillArc in gdisp.
Added gwin (GFX_USE_GWIN) - adds a window based drawing layer to GDISP.
GWIN also support chprintf text drawing like console.
---
gfx.mk | 25 +--
include/gwin.h | 176 ++++++++++++++++
src/gdisp.c | 114 ++++++++++-
src/gwin.c | 621 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 923 insertions(+), 13 deletions(-)
create mode 100644 include/gwin.h
create mode 100644 src/gwin.c
diff --git a/gfx.mk b/gfx.mk
index ec28df30..070b142c 100644
--- a/gfx.mk
+++ b/gfx.mk
@@ -1,12 +1,13 @@
-# don't re-define GFXLIB if it has been set elsewhere, e.g in Makefile
-ifeq ($(GFXLIB),)
- GFXLIB = $(CHIBIOS)/ext/gfx
-endif
-
-GFXSRC += $(GFXLIB)/src/gdisp.c \
- $(GFXLIB)/src/gdisp_fonts.c \
- $(GFXLIB)/src/touchpad.c \
- $(GFXLIB)/src/console.c \
- $(GFXLIB)/src/graph.c \
-
-GFXINC += $(GFXLIB)/include
+# don't re-define GFXLIB if it has been set elsewhere, e.g in Makefile
+ifeq ($(GFXLIB),)
+ GFXLIB = $(CHIBIOS)/ext/gfx
+endif
+
+GFXSRC += $(GFXLIB)/src/gdisp.c \
+ $(GFXLIB)/src/gdisp_fonts.c \
+ $(GFXLIB)/src/gwin.c \
+ $(GFXLIB)/src/touchpad.c \
+ $(GFXLIB)/src/console.c \
+ $(GFXLIB)/src/graph.c \
+
+GFXINC += $(GFXLIB)/include
diff --git a/include/gwin.h b/include/gwin.h
new file mode 100644
index 00000000..acb02b35
--- /dev/null
+++ b/include/gwin.h
@@ -0,0 +1,176 @@
+/*
+ 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 !defined(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 */
+/** @} */
diff --git a/src/gdisp.c b/src/gdisp.c
index 83ba8972..82130b7c 100644
--- a/src/gdisp.c
+++ b/src/gdisp.c
@@ -28,7 +28,6 @@
#include "ch.h"
#include "hal.h"
#include "gdisp.h"
-#include "math.h"
#ifndef _GDISP_C
#define _GDISP_C
@@ -495,6 +494,10 @@
}
#endif
+#if GDISP_NEED_ARC || defined(__DOXYGEN__)
+
+#include "math.h"
+
/*
* @brief Internal helper function for gdispDrawArc()
*
@@ -598,6 +601,115 @@ void gdispDrawArc(coord_t x, coord_t y, coord_t radius, uint16_t start, uint16_t
_draw_arc(x, y, start, end, radius, color);
}
}
+#endif
+
+#if GDISP_NEED_ARC || defined(__DOXYGEN__)
+/*
+ * @brief Internal helper function for gdispFillArc()
+ *
+ * @note DO NOT USE DIRECTLY!
+ * @note Not very efficient currently - does lots of overdrawing
+ *
+ * @param[in] x, y The middle point of the arc
+ * @param[in] start The start angle of the arc
+ * @param[in] end The end angle of the arc
+ * @param[in] radius The radius of the arc
+ * @param[in] color The color in which the arc will be drawn
+ *
+ * @notapi
+ */
+void _fill_arc(coord_t x, coord_t y, uint16_t start, uint16_t end, uint16_t radius, color_t color) {
+ if(start > 0 && start <= 180) {
+ float x_maxI = x + radius*cos(start*M_PI/180);
+ float x_minI;
+
+ if (end > 180)
+ x_minI = x - radius;
+ else
+ x_minI = x + radius*cos(end*M_PI/180);
+
+ int a = 0;
+ int b = radius;
+ int P = 1 - radius;
+
+ do {
+ if(x-a <= x_maxI && x-a >= x_minI)
+ gdispDrawLine(x, y, x-a, y+b, color);
+ if(x+a <= x_maxI && x+a >= x_minI)
+ gdispDrawLine(x, y, x+a, y+b, color);
+ if(x-b <= x_maxI && x-b >= x_minI)
+ gdispDrawLine(x, y, x-b, y+a, color);
+ if(x+b <= x_maxI && x+b >= x_minI)
+ gdispDrawLine(x, y, x+b, y+a, color);
+
+ if (P < 0) {
+ P = P + 3 + 2*a;
+ a = a + 1;
+ } else {
+ P = P + 5 + 2*(a - b);
+ a = a + 1;
+ b = b - 1;
+ }
+ } while(a <= b);
+ }
+
+ if (end > 180 && end <= 360) {
+ float x_maxII = x+radius*cos(end*M_PI/180);
+ float x_minII;
+
+ if(start <= 180)
+ x_minII = x - radius;
+ else
+ x_minII = x+radius*cos(start*M_PI/180);
+
+ int a = 0;
+ int b = radius;
+ int P = 1 - radius;
+
+ do {
+ if(x-a <= x_maxII && x-a >= x_minII)
+ gdispDrawLine(x, y, x-a, y-b, color);
+ if(x+a <= x_maxII && x+a >= x_minII)
+ gdispDrawLine(x, y, x+a, y-b, color);
+ if(x-b <= x_maxII && x-b >= x_minII)
+ gdispDrawLine(x, y, x-b, y-a, color);
+ if(x+b <= x_maxII && x+b >= x_minII)
+ gdispDrawLine(x, y, x+b, y-a, color);
+
+ if (P < 0) {
+ P = P + 3 + 2*a;
+ a = a + 1;
+ } else {
+ P = P + 5 + 2*(a - b);
+ a = a + 1;
+ b = b - 1;
+ }
+ } while (a <= b);
+ }
+}
+
+/*
+ * @brief Draw a filled arc.
+ * @pre The GDISP must be in powerOn or powerSleep mode.
+ * @note Not very efficient currently - does lots of overdrawing
+ *
+ * @param[in] x0,y0 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)
+ * @param[in] color The color of the arc
+ *
+ * @api
+ */
+void gdispFillArc(coord_t x, coord_t y, coord_t radius, uint16_t start, uint16_t end, color_t color) {
+ if(end < start) {
+ _fill_arc(x, y, start, 360, radius, color);
+ _fill_arc(x, y, 0, end, radius, color);
+ } else {
+ _fill_arc(x, y, start, end, radius, color);
+ }
+}
+#endif
#if (GDISP_NEED_TEXT && GDISP_NEED_MULTITHREAD) || defined(__DOXYGEN__)
/**
diff --git a/src/gwin.c b/src/gwin.c
new file mode 100644
index 00000000..1319af1f
--- /dev/null
+++ b/src/gwin.c
@@ -0,0 +1,621 @@
+/*
+ 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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