187 lines
6.7 KiB
C
187 lines
6.7 KiB
C
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#ifndef _GUISLICE_EX_XGRAPH_H_
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#define _GUISLICE_EX_XGRAPH_H_
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#include "GUIslice.h"
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// =======================================================================
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// GUIslice library extension: Graph control
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// - Calvin Hass
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// - https://www.impulseadventure.com/elec/guislice-gui.html
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// - https://github.com/ImpulseAdventure/GUIslice
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// =======================================================================
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//
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// The MIT License
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//
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// Copyright 2016-2020 Calvin Hass
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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// =======================================================================
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/// \file XGraph.h
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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// ============================================================================
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// Extended Element: Graph
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// ============================================================================
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// Define unique identifier for extended element type
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// - Select any number above GSLC_TYPE_BASE_EXTEND
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#define GSLC_TYPEX_GRAPH GSLC_TYPE_BASE_EXTEND + 5
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/// Gauge drawing style
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typedef enum {
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GSLCX_GRAPH_STYLE_DOT, ///< Dot
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GSLCX_GRAPH_STYLE_LINE, ///< Line
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GSLCX_GRAPH_STYLE_FILL, ///< Filled
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} gslc_teXGraphStyle;
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// Extended element data structures
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// - These data structures are maintained in the gslc_tsElem
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// structure via the pXData pointer
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/// Extended data for Graph element
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typedef struct {
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// Config
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int16_t* pBuf; ///< Ptr to the data buffer (circular buffer))
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uint8_t nMargin; ///< Margin for graph area within element rect
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gslc_tsColor colGraph; ///< Color of the graph
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gslc_teXGraphStyle eStyle; ///< Style of the graph
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uint16_t nBufMax; ///< Maximum number of points in buffer
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bool bScrollEn; ///< Enable for scrollbar
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uint16_t nScrollPos; ///< Current scrollbar position
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uint16_t nWndHeight; ///< Visible window height
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uint16_t nWndWidth; ///< Visible window width
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int16_t nPlotValMax; ///< Visible window maximum value
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int16_t nPlotValMin; ///< Visible window minimum value
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uint16_t nPlotIndMax; ///< Number of data points to show in window
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// Current status
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uint16_t nBufCnt; ///< Number of points in buffer
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uint16_t nPlotIndStart; ///< First row of current window
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} gslc_tsXGraph;
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///
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/// Create a Graph Element
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///
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/// \param[in] pGui: Pointer to GUI
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/// \param[in] nElemId: Element ID to assign (0..16383 or GSLC_ID_AUTO to autogen)
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/// \param[in] nPage: Page ID to attach element to
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/// \param[in] pXData: Ptr to extended element data structure
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/// \param[in] rElem: Rectangle coordinates defining checkbox size
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/// \param[in] nFontId: Font ID to use for graph area
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/// \param[in] pBuf: Ptr to data buffer (already allocated)
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/// with size (nBufMax) int16_t
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/// \param[in] nBufRows: Maximum number of points in buffer
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/// \param[in] colGraph: Color of the graph
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///
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/// \return Pointer to Element reference or NULL if failure
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///
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gslc_tsElemRef* gslc_ElemXGraphCreate(gslc_tsGui* pGui,int16_t nElemId,int16_t nPage,
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gslc_tsXGraph* pXData,gslc_tsRect rElem,int16_t nFontId,int16_t* pBuf,
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uint16_t nBufRows,gslc_tsColor colGraph);
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///
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/// Set the graph's additional drawing characteristics
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///
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/// \param[in] pGui: Pointer to GUI
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/// \param[in] pElemRef: Pointer to Element reference
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/// \param[in] eStyle: Drawing style for the graph
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/// \param[in] nMargin: Margin to provide around graph area inside frame
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///
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/// \return none
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///
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void gslc_ElemXGraphSetStyle(gslc_tsGui* pGui,gslc_tsElemRef* pElemRef,
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gslc_teXGraphStyle eStyle,uint8_t nMargin);
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///
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/// Set the graph's drawing range
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///
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/// \param[in] pGui: Pointer to GUI
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/// \param[in] pElemRef: Pointer to Element reference
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/// \param[in] nYMin: Minimum Y value to draw
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/// \param[in] nYMax: Maximum Y value to draw
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///
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/// \return none
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///
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void gslc_ElemXGraphSetRange(gslc_tsGui* pGui,gslc_tsElemRef* pElemRef,
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int16_t nYMin,int16_t nYMax);
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///
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/// Draw a Graph element on the screen
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/// - Called from gslc_ElemDraw()
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///
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/// \param[in] pvGui: Void ptr to GUI (typecast to gslc_tsGui*)
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/// \param[in] pvElemRef: Void ptr to Element reference (typecast to gslc_tsElemRef*)
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/// \param[in] eRedraw: Redraw mode
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///
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/// \return true if success, false otherwise
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///
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bool gslc_ElemXGraphDraw(void* pvGui,void* pvElemRef,gslc_teRedrawType eRedraw);
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/// Add a value to the graph at the latest position
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///
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/// \param[in] pGui: Pointer to GUI
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/// \param[in] pElemRef: Pointer to Element reference
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/// \param[in] nVal: Data value to add
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///
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/// \return none
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///
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void gslc_ElemXGraphAdd(gslc_tsGui* pGui,gslc_tsElemRef* pElemRef,int16_t nVal);
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///
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/// Set the graph scroll position (nScrollPos) as a fraction of
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/// nScrollMax
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///
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/// \param[in] pGui: Pointer to GUI
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/// \param[in] pElemRef: Pointer to Element reference
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/// \param[in] nScrollPos: New scroll position
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/// \param[in] nScrollMax: Maximum scroll position
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///
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/// \return none
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///
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void gslc_ElemXGraphScrollSet(gslc_tsGui* pGui,gslc_tsElemRef* pElemRef,uint8_t nScrollPos,uint8_t nScrollMax);
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// ============================================================================
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// ------------------------------------------------------------------------
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// Read-only element macros
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// ------------------------------------------------------------------------
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// Macro initializers for Read-Only Elements in Flash/PROGMEM
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//
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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#endif // _GUISLICE_EX_XGRAPH_H_
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