www.pudn.com > uC-GUI-V3-98.zip > 2DGL_DrawScale.c

/* 
********************************************************************************************************* 
*                                             uC/GUI V3.98 
*                        Universal graphic software for embedded applications 
* 
*                       (c) Copyright 2002, Micrium Inc., Weston, FL 
*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH 
* 
*              µC/GUI is protected by international copyright laws. Knowledge of the 
*              source code may not be used to write a similar product. This file may 
*              only be used in accordance with a license and should not be redistributed 
*              in any way. We appreciate your understanding and fairness. 
* 
---------------------------------------------------------------------- 
File        : 2DGL_DrawScale.c 
Purpose     : Drawing a scale using GUI-functions 
---------------------------------------------------------------------- 
*/ 
 
#include "GUI.h" 
#include  
#include  
 
#define SPEED 1100 
 
/******************************************************************* 
* 
*       static code 
* 
******************************************************************** 
*/ 
/******************************************************************* 
* 
*       _DrawScale 
 
  Drawing a scale using GUI-functions 
*/ 
static void _DrawScale(void) { 
  int XSize = LCD_GetXSize(); 
  int YSize = LCD_GetYSize(); 
  int XMid  = XSize / 2; 
  int i; 
  int r1   = 110; 
  int r2   = 140; 
  int rt   = 100; 
  int y    = 240; 
  int step =  15; 
  int r = (r1 + r2) / 2; 
  GUI_SetBkColor(GUI_BLACK); 
  GUI_Clear(); 
  GUI_SetColor(GUI_WHITE); 
  GUI_SetFont(&GUI_Font24_ASCII); 
  GUI_SetTextAlign(GUI_TA_HCENTER); 
  GUI_DispStringAt("DrawScale - Sample", 160, 5); 
  while (1) { 
    int c = 0; 
    GUI_SetColor(GUI_WHITE); 
    GUI_SetFont(&GUI_Font8x16); 
    GUI_SetTextAlign(GUI_TA_LEFT); 
    GUI_Delay(SPEED / 2); 
    GUI_DispStringAtCEOL("using", 5, 40); 
    GUI_DispStringAtCEOL("GUI_AA_DrawArc", 5, 55); 
    GUI_Delay(SPEED * 2); 
    GUI_SetPenSize(r2 - r1); 
    GUI_SetColor(0x0000AA); 
    GUI_AA_DrawArc(XMid, y, r, r, 45, 60); 
    GUI_Delay(SPEED); 
    GUI_SetColor(0x00AA00); 
    GUI_AA_DrawArc(XMid, y, r, r, 60, 90); 
    GUI_Delay(SPEED); 
    GUI_SetPenSize(2); 
    GUI_SetColor(GUI_WHITE); 
    GUI_AA_DrawArc(XMid, y, r1, r1, 45, 135); 
    GUI_Delay(SPEED); 
    GUI_AA_DrawArc(XMid, y, r2, r2, 45, 135); 
    GUI_Delay(SPEED); 
    GUI_DispStringAtCEOL("", 5, 55); 
    GUI_Delay(200); 
    GUI_DispStringAtCEOL("using", 5, 40); 
    GUI_DispStringAtCEOL("GUI_AA_DrawLine & GUI_DispCharAt", 5, 55); 
    GUI_Delay(SPEED * 3); 
    for (i = 45; i <= 135; i += step) { 
      float co = cos(i * 3.1415926 / 180); 
      float si = sin(i * 3.1415926 / 180); 
      int   x1 = XMid - r1 * co; 
      int   y1 = y    - r1 * si; 
      int   x2 = XMid - (r2 - 1) * co; 
      int   y2 = y    - (r2 - 1) * si; 
      int   xt = XMid - rt * co; 
      int   yt = y    - rt * si; 
      GUI_SetColor(GUI_WHITE); 
      GUI_SetPenSize(2); 
      GUI_AA_DrawLine(x1, y1, x2, y2); 
      GUI_SetColor(GUI_GREEN); 
      GUI_SetFont(&GUI_Font8x8); 
      GUI_DispCharAt('0' + c++, xt - 4, yt - 4); 
      GUI_Delay(SPEED / 2); 
    } 
    GUI_Delay(SPEED * 3); 
    GUI_ClearRect(0, 30, 320, 240); 
  } 
} 
 
/******************************************************************* 
* 
*       MainTask 
* 
*       Demonstrates GUI-functions 
* 
******************************************************************** 
*/ 
 
void MainTask(void) { 
  GUI_Init(); 
  _DrawScale(); 
  while(1);  
}