diff options
author | Joel Bodenmann <joel@unormal.org> | 2013-02-11 09:25:45 +0100 |
---|---|---|
committer | Joel Bodenmann <joel@unormal.org> | 2013-02-11 09:25:45 +0100 |
commit | 1bfc5a9f85e7c3296095105ca8e3ee1215b22be8 (patch) | |
tree | 08f2662a3ad41936e23e00815ae9ee024bdedbfd /include/gwin/graph.h | |
parent | 885b3d53b3a491c62fb0634b78cb9857723ac15d (diff) | |
download | uGFX-1bfc5a9f85e7c3296095105ca8e3ee1215b22be8.tar.gz uGFX-1bfc5a9f85e7c3296095105ca8e3ee1215b22be8.tar.bz2 uGFX-1bfc5a9f85e7c3296095105ca8e3ee1215b22be8.zip |
removed GDISP_LLD() macro - fix
Diffstat (limited to 'include/gwin/graph.h')
-rw-r--r-- | include/gwin/graph.h | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/include/gwin/graph.h b/include/gwin/graph.h new file mode 100644 index 00000000..9267813b --- /dev/null +++ b/include/gwin/graph.h @@ -0,0 +1,208 @@ +/*
+ 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 include/gwin/graph.h
+ * @brief GWIN GRAPH module header file.
+ *
+ * @defgroup Graph Graph
+ * @ingroup GWIN
+ *
+ * @details GWIN allows it to easily draw graphs.
+ * @pre GFX_USE_GWIN must be set to TRUE in your gfxconf.h
+ * @pre GWIN_NEED_GRAPH must be set to TRUE in your gfxconf.h
+ *
+ * @{
+ */
+
+#ifndef _GWIN_GRAPH_H
+#define _GWIN_GRAPH_H
+
+#if GWIN_NEED_GRAPH || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+#define GW_GRAPH 0x0003
+
+/*===========================================================================*/
+/* Type definitions */
+/*===========================================================================*/
+
+typedef struct GGraphPoint_t {
+ coord_t x, y;
+ } GGraphPoint;
+
+typedef enum GGraphPointType_e {
+ GGRAPH_POINT_NONE, GGRAPH_POINT_DOT, GGRAPH_POINT_SQUARE, GGRAPH_POINT_CIRCLE
+ } GGraphPointType;
+
+typedef struct GGraphPointStyle_t {
+ GGraphPointType type;
+ coord_t size;
+ color_t color;
+ } GGraphPointStyle;
+
+typedef enum GGraphLineType_e {
+ GGRAPH_LINE_NONE, GGRAPH_LINE_SOLID, GGRAPH_LINE_DOT, GGRAPH_LINE_DASH
+ } GGraphLineType;
+
+typedef struct GGraphLineStyle_t {
+ GGraphLineType type;
+ coord_t size;
+ color_t color;
+ } GGraphLineStyle;
+
+typedef struct GGraphGridStyle_t {
+ GGraphLineType type;
+ coord_t size;
+ color_t color;
+ coord_t spacing;
+ } GGraphGridStyle;
+
+typedef struct GGraphStyle_t {
+ GGraphPointStyle point;
+ GGraphLineStyle line;
+ GGraphLineStyle xaxis;
+ GGraphLineStyle yaxis;
+ GGraphGridStyle xgrid;
+ GGraphGridStyle ygrid;
+ uint16_t flags;
+ #define GWIN_GRAPH_STYLE_XAXIS_POSITIVE_ARROWS 0x0001
+ #define GWIN_GRAPH_STYLE_XAXIS_NEGATIVE_ARROWS 0x0002
+ #define GWIN_GRAPH_STYLE_YAXIS_POSITIVE_ARROWS 0x0004
+ #define GWIN_GRAPH_STYLE_YAXIS_NEGATIVE_ARROWS 0x0008
+ #define GWIN_GRAPH_STYLE_POSITIVE_AXIS_ARROWS (GWIN_GRAPH_STYLE_XAXIS_POSITIVE_ARROWS|GWIN_GRAPH_STYLE_YAXIS_POSITIVE_ARROWS)
+ #define GWIN_GRAPH_STYLE_NEGATIVE_AXIS_ARROWS (GWIN_GRAPH_STYLE_XAXIS_NEGATIVE_ARROWS|GWIN_GRAPH_STYLE_YAXIS_NEGATIVE_ARROWS)
+ #define GWIN_GRAPH_STYLE_XAXIS_ARROWS (GWIN_GRAPH_STYLE_XAXIS_POSITIVE_ARROWS|GWIN_GRAPH_STYLE_XAXIS_NEGATIVE_ARROWS)
+ #define GWIN_GRAPH_STYLE_YAXIS_ARROWS (GWIN_GRAPH_STYLE_YAXIS_POSITIVE_ARROWS|GWIN_GRAPH_STYLE_YAXIS_NEGATIVE_ARROWS)
+ #define GWIN_GRAPH_STYLE_ALL_AXIS_ARROWS (GWIN_GRAPH_STYLE_XAXIS_ARROWS|GWIN_GRAPH_STYLE_YAXIS_ARROWS)
+} GGraphStyle;
+
+// A graph window
+typedef struct GGraphObject_t {
+ GWindowObject gwin;
+ GGraphStyle style;
+ coord_t xorigin, yorigin;
+ coord_t lastx, lasty;
+ } GGraphObject;
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Create a graph window.
+ * @return NULL if there is no resultant drawing area, otherwise a window handle.
+ *
+ * @param[in] gg The GGraphObject structure to initialise. If this is NULL the structure is dynamically allocated.
+ * @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 console is not automatically cleared on creation. You must do that by calling gwinClear() (possibly after changing your background color)
+ * @note The coordinate system within the window for graphing operations (but not for any other drawing
+ * operation) is relative to the bottom left corner and then shifted right and up by the specified
+ * graphing x and y origin. Note that this system is inverted in the y direction relative to the display.
+ * This gives the best graphing arrangement ie. increasing y values are closer to the top of the display.
+ *
+ * @api
+ */
+GHandle gwinCreateGraph(GGraphObject *gg, coord_t x, coord_t y, coord_t width, coord_t height);
+
+/**
+ * @brief Set the style of the graphing operations.
+ *
+ * @param[in] gh The window handle (must be a graph window)
+ * @param[in] pstyle The graph style to set.
+ * @note The graph is not automatically redrawn. The new style will apply to any new drawing operations.
+ *
+ * @api
+ */
+void gwinGraphSetStyle(GHandle gh, const GGraphStyle *pstyle);
+
+/**
+ * @brief Set the origin for graphing operations.
+ *
+ * @param[in] gh The window handle (must be a graph window)
+ * @param[in] x, y The new origin for the graph (in graph coordinates relative to the bottom left corner).
+ * @note The graph is not automatically redrawn. The new origin will apply to any new drawing operations.
+ *
+ * @api
+ */
+void gwinGraphSetOrigin(GHandle gh, coord_t x, coord_t y);
+
+/**
+ * @brief Draw the axis and the background grid.
+ *
+ * @param[in] gh The window handle (must be a graph window)
+ * @note The graph is not automatically cleared. You must do that first by calling gwinClear().
+ *
+ * @api
+ */
+void gwinGraphDrawAxis(GHandle gh);
+
+/**
+ * @brief Start a new set of graphing data.
+ * @details This prevents a line being drawn from the last data point to the next point to be drawn.
+ *
+ * @param[in] gh The window handle (must be a graph window)
+ *
+ * @api
+ */
+void gwinGraphStartSet(GHandle gh);
+
+/**
+ * @brief Draw a graph point.
+ * @details A graph point and a line connecting to the previous point will be drawn.
+ *
+ * @param[in] gh The window handle (must be a graph window)
+ * @param[in] x, y The new point for the graph.
+ *
+ * @api
+ */
+void gwinGraphDrawPoint(GHandle gh, coord_t x, coord_t y);
+
+/**
+ * @brief Draw multiple graph points.
+ * @details A graph point and a line connecting to each previous point will be drawn.
+ *
+ * @param[in] gh The window handle (must be a graph window)
+ * @param[in] points The array of points for the graph.
+ * @param[in] count The number of points in the array.
+ * @note This is slightly more efficient than calling gwinGraphDrawPoint() repeatedly.
+ *
+ * @api
+ */
+void gwinGraphDrawPoints(GHandle gh, const GGraphPoint *points, unsigned count);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GWIN_NEED_GRAPH */
+
+#endif /* _GWIN_GRAPH_H */
+/** @} */
+
|