2DGL_DrawScale.c

00001 /*********************************************************************
00002 *                SEGGER Microcontroller GmbH                         *
00003 *        Solutions for real time microcontroller applications        *
00004 **********************************************************************
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00007 *                                                                    *
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00009 *                                                                    *
00010 **********************************************************************
00011 
00012 ** emWin V5.48 - Graphical user interface for embedded applications **
00013 All  Intellectual Property rights  in the Software belongs to  SEGGER.
00014 emWin is protected by  international copyright laws.  Knowledge of the
00015 source code may not be used to write a similar product.  This file may
00016 only be used in accordance with the following terms:
00017 
00018 The software  has been licensed to  Cypress Semiconductor Corporation,
00019 whose registered  office is situated  at 198 Champion Ct. San Jose, CA 
00020 95134 USA  solely for the  purposes of creating  libraries for Cypress
00021 PSoC3 and  PSoC5 processor-based devices,  sublicensed and distributed
00022 under  the  terms  and  conditions  of  the  Cypress  End User License
00023 Agreement.
00024 Full source code is available at: www.segger.com
00025 
00026 We appreciate your understanding and fairness.
00027 ----------------------------------------------------------------------
00028 Licensing information
00029 Licensor:                 SEGGER Microcontroller Systems LLC
00030 Licensed to:              Cypress Semiconductor Corp, 198 Champion Ct., San Jose, CA 95134, USA
00031 Licensed SEGGER software: emWin
00032 License number:           GUI-00319
00033 License model:            Services and License Agreement, signed June 10th, 2009
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00035 ----------------------------------------------------------------------
00036 Support and Update Agreement (SUA)
00037 SUA period:               2009-06-12 - 2022-07-27
00038 Contact to extend SUA:    sales@segger.com
00039 ----------------------------------------------------------------------
00040 File        : 2DGL_DrawScale.c
00041 Purpose     : Drawing a scale using GUI-functions
00042 Requirements: WindowManager - ( )
00043               MemoryDevices - ( )
00044               AntiAliasing  - (x)
00045               VNC-Server    - ( )
00046               PNG-Library   - ( )
00047               TrueTypeFonts - ( )
00048 ----------------------------------------------------------------------
00049 */
00050 
00051 #include "GUI.h"
00052 #include <math.h>
00053 #include <stddef.h>
00054 
00055 /*********************************************************************
00056 *
00057 *       Defines
00058 *
00059 **********************************************************************
00060 */
00061 #define SPEED 1100
00062 
00063 //
00064 // Recommended memory to run the sample with adequate performance
00065 //
00066 #define RECOMMENDED_MEMORY (1024L * 5)
00067 
00068 /*******************************************************************
00069 *
00070 *       static code
00071 *
00072 ********************************************************************
00073 */
00074 /*******************************************************************
00075 *
00076 *       _DrawScale
00077 *
00078 * Function description
00079 *   Drawing a scale using GUI-functions
00080 */
00081 static void _DrawScale(void) {
00082   int XSize;
00083   int XMid; 
00084   int i;
00085   int r1;
00086   int r2;
00087   int rt;
00088   int y ;
00089   int step;
00090   int r;
00091 
00092   XSize = LCD_GetXSize();
00093   XMid  = XSize / 2;
00094   r1    = 110;
00095   r2    = 140;
00096   rt    = 100;
00097   y     = 240;
00098   step  =  15;
00099   r     = (r1 + r2) / 2;
00100   GUI_SetBkColor(GUI_BLACK);
00101   GUI_Clear();
00102   GUI_SetColor(GUI_WHITE);
00103   GUI_SetFont(&GUI_Font24_ASCII);
00104   GUI_SetTextAlign(GUI_TA_HCENTER);
00105   GUI_DispStringAt("DrawScale - Sample", 160, 5);
00106   while (1) {
00107     int c = 0;
00108     GUI_SetColor(GUI_WHITE);
00109     GUI_SetFont(&GUI_Font8x16);
00110     GUI_SetTextAlign(GUI_TA_LEFT);
00111     GUI_Delay(SPEED / 2);
00112     GUI_DispStringAtCEOL("using", 5, 40);
00113     GUI_DispStringAtCEOL("GUI_AA_DrawArc", 5, 55);
00114     GUI_Delay(SPEED * 2);
00115     GUI_SetPenSize(r2 - r1);
00116     GUI_SetColor(GUI_MAKE_COLOR(0x0000AA));
00117     GUI_AA_DrawArc(XMid, y, r, r, 45, 60);
00118     GUI_Delay(SPEED);
00119     GUI_SetColor(GUI_MAKE_COLOR(0x00AA00));
00120     GUI_AA_DrawArc(XMid, y, r, r, 60, 90);
00121     GUI_Delay(SPEED);
00122     GUI_SetPenSize(2);
00123     GUI_SetColor(GUI_WHITE);
00124     GUI_AA_DrawArc(XMid, y, r1, r1, 45, 135);
00125     GUI_Delay(SPEED);
00126     GUI_AA_DrawArc(XMid, y, r2, r2, 45, 135);
00127     GUI_Delay(SPEED);
00128     GUI_DispStringAtCEOL("", 5, 55);
00129     GUI_Delay(200);
00130     GUI_DispStringAtCEOL("using", 5, 40);
00131     GUI_DispStringAtCEOL("GUI_AA_DrawLine & GUI_DispCharAt", 5, 55);
00132     GUI_Delay(SPEED * 3);
00133     for (i = 45; i <= 135; i += step) {
00134       float co = cos(i * 3.1415926 / 180);
00135       float si = sin(i * 3.1415926 / 180);
00136       int   x1 = XMid - (int)(r1 * co);
00137       int   y1 = y    - (int)(r1 * si);
00138       int   x2 = XMid - (int)((r2 - 1) * co);
00139       int   y2 = y    - (int)((r2 - 1) * si);
00140       int   xt = XMid - (int)(rt * co);
00141       int   yt = y    - (int)(rt * si);
00142       GUI_SetColor(GUI_WHITE);
00143       GUI_SetPenSize(2);
00144       GUI_AA_DrawLine(x1, y1, x2, y2);
00145       GUI_SetColor(GUI_GREEN);
00146       GUI_SetFont(&GUI_Font8x8);
00147       GUI_DispCharAt('0' + c++, xt - 4, yt - 4);
00148       GUI_Delay(SPEED / 2);
00149     }
00150     GUI_Delay(SPEED * 3);
00151     GUI_ClearRect(0, 30, 320, 240);
00152   }
00153 }
00154 
00155 /*********************************************************************
00156 *
00157 *       Public code
00158 *
00159 **********************************************************************
00160 */
00161 /*********************************************************************
00162 *
00163 *       MainTask
00164 */
00165 void MainTask(void) {
00166   GUI_Init();
00167   //
00168   // Check if recommended memory for the sample is available
00169   //
00170   if (GUI_ALLOC_GetNumFreeBytes() < RECOMMENDED_MEMORY) {
00171     GUI_ErrorOut("Not enough memory available."); 
00172     return;
00173   }
00174   _DrawScale();
00175   while(1); 
00176 }
00177 
00178 /*************************** End of file ****************************/
00179