gui_widget_graphytdemo.c

An Demo of uCGUI from SEGGER

/*********************************************************************
*               SEGGER MICROCONTROLLER SYSTEME GmbH                  *
*       Solutions for real time microcontroller applications         *
**********************************************************************
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*       (c) 1995 - 2007  SEGGER Microcontroller Systeme GmbH         *
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**********************************************************************
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*       embOS version: 3.32p                                         *
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**********************************************************************

----------------------------------------------------------------------
File    : GUI_WIDGET_GraphYtDemo.c
Purpose : Demonstrates the use of the GRAPH widget
--------  END-OF-HEADER  ---------------------------------------------
*/

#include <stdlib.h>
#include <string.h>

#include "BSP.h"
#include "GUI.h"
#include "DIALOG.h"
#include "GRAPH.h"

/*********************************************************************
*
*       Defines
*
**********************************************************************
*/

#define MAX_VALUE 180

/*********************************************************************
*
*       Static data
*
**********************************************************************
*/
static GRAPH_DATA_Handle  _ahData[3]; /* Array of handles for the GRAPH_DATA objects */
static GRAPH_SCALE_Handle _hScaleV;   /* Handle of vertical scale */
static GRAPH_SCALE_Handle _hScaleH;   /* Handle of horizontal scale */

static I16 _aValue[3];
static int _Stop;

static GUI_COLOR _aColor[] = {GUI_RED, GUI_GREEN, GUI_LIGHTBLUE}; /* Array of colors for the GRAPH_DATA objects */

/* Dialog ressource */
static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] = {
  { FRAMEWIN_CreateIndirect, "Graph widget demo",  0                ,   0,   0, 320, 240, FRAMEWIN_CF_MOVEABLE },
  { GRAPH_CreateIndirect,     0,                   GUI_ID_GRAPH0    ,   5,   5, 270, 175 },
  { TEXT_CreateIndirect,      "Spacing X:",        0                ,  10, 185,  50,  20 },
  { TEXT_CreateIndirect,      "Spacing Y:",        0                ,  10, 205,  50,  20 },
  { SLIDER_CreateIndirect,    0,                   GUI_ID_SLIDER0   ,  60, 185,  60,  16 },
  { SLIDER_CreateIndirect,    0,                   GUI_ID_SLIDER1   ,  60, 205,  60,  16 },
  { CHECKBOX_CreateIndirect,  0,                   GUI_ID_CHECK0    , 130, 185,  50,   0 },
  { CHECKBOX_CreateIndirect,  0,                   GUI_ID_CHECK1    , 130, 205,  50,   0 },
  { TEXT_CreateIndirect,      "Border",            0                , 280,   5,  35,  15 },
  { CHECKBOX_CreateIndirect,  0,                   GUI_ID_CHECK2    , 280,  20,  35,   0 },
  { CHECKBOX_CreateIndirect,  0,                   GUI_ID_CHECK3    , 280,  40,  35,   0 },
  { CHECKBOX_CreateIndirect,  0,                   GUI_ID_CHECK4    , 280,  60,  35,   0 },
  { CHECKBOX_CreateIndirect,  0,                   GUI_ID_CHECK5    , 280,  80,  35,   0 },
  { TEXT_CreateIndirect,      "Effect",            0                , 280, 100,  35,  15 },
  { RADIO_CreateIndirect,     0,                   GUI_ID_RADIO0    , 275, 115,  35,   0, 0, 3 },
  { CHECKBOX_CreateIndirect,  0,                   GUI_ID_CHECK6    , 180, 185,  50,   0 },
  { CHECKBOX_CreateIndirect,  0,                   GUI_ID_CHECK7    , 180, 205,  50,   0 },
  { BUTTON_CreateIndirect,    "Full Screen",       GUI_ID_BUTTON0   , 235, 185,  65,  18 },
  { CHECKBOX_CreateIndirect,  0,                   GUI_ID_CHECK8    , 235, 205,  70,   0 },
};

/*********************************************************************
*
*       Static code
*
**********************************************************************
*/
/*********************************************************************
*
*       _AddValues
*
* Purpose:
*   This routine calculates new random values in dependence of the previous added values
*   and adds them to the GRAPH_DATA objects
*/
static void _AddValues(WM_HWIN hGraph) {
  int i;
  for (i = 0; i < GUI_COUNTOF(_aValue); i++) {
    int Add = rand() % (2 + i * i);
    int Vz  = ((rand() % 2) << 1) - 1;
    _aValue[i] += Add * Vz;
    if (_aValue[i] > MAX_VALUE) {
      _aValue[i] = MAX_VALUE;
    } else if (_aValue[i] < 0) {
      _aValue[i] = 0;
    }
    GRAPH_DATA_YT_AddValue(_ahData[i], _aValue[i]);
  }
}

/*********************************************************************
*
*       _UserDraw
*
* Purpose:
*   This routine is called by the GRAPH object before anything is drawn
*   and after the last drawing operation.
*/
static void _UserDraw(WM_HWIN hWin, int Stage) {
  if (Stage == GRAPH_DRAW_LAST) {
    char acText[] = "Temperature";
    GUI_RECT Rect, RectInvalid;
    int FontSizeY;
    GUI_SetFont(&GUI_Font13_ASCII);
    FontSizeY = GUI_GetFontSizeY();
    WM_GetInsideRect(&Rect);
    WM_GetInvalidRect(hWin, &RectInvalid);
    Rect.x1 = Rect.x0 + FontSizeY;
    GUI_SetColor(GUI_RED);
    GUI_DispStringInRectEx(acText, &Rect, GUI_TA_HCENTER, strlen(acText), GUI_ROTATE_CCW);
  }
}

/*********************************************************************
*
*       _ForEach
*
* Purpose:
*   This routine hides/shows all windows except the button, graph and scroll bar widgets
*/
static void _ForEach(WM_HWIN hWin, void * pData) {
  int Id, FullScreenMode;
  FullScreenMode = *(int *)pData;
  Id = WM_GetId(hWin);
  if ((Id == GUI_ID_GRAPH0) || (Id == GUI_ID_BUTTON0) || (Id == GUI_ID_VSCROLL) || (Id == GUI_ID_HSCROLL)) {
    return;
  }
  if (FullScreenMode) {
    WM_HideWindow(hWin);
  } else {
    WM_ShowWindow(hWin);
  }
}

/*********************************************************************
*
*       _ToggleFullScreenMode
*
* Purpose:
*   This routine switches between full screen mode and normal mode by hiding or showing the
*   widgets of the dialog, enlarging/shrinking the graph widget and modifying some other
*   attributes of the dialog widgets.
*/
static void _ToggleFullScreenMode(WM_HWIN hDlg) {
  static int FullScreenMode;
  static GUI_RECT Rect;
  static unsigned ScalePos;
  WM_HWIN hGraph, hButton;
  hGraph  = WM_GetDialogItem(hDlg, GUI_ID_GRAPH0);
  hButton = WM_GetDialogItem(hDlg, GUI_ID_BUTTON0);
  FullScreenMode ^= 1;
  if (FullScreenMode) {
    /* Enter the full screen mode */
    WM_HWIN hClient;
    GUI_RECT RectInside;
    hClient = WM_GetClientWindow(hDlg);
    BUTTON_SetText(hButton, "Back");
    WM_MoveWindow(hButton, 0, 11);
    FRAMEWIN_SetTitleVis(hDlg, 0);
    WM_GetInsideRectEx(hClient, &RectInside);
    WM_GetWindowRectEx(hGraph, &Rect);
    WM_ForEachDesc(hClient, _ForEach, &FullScreenMode); /* Hide all descendants */
    WM_SetWindowPos(hGraph, WM_GetWindowOrgX(hClient), WM_GetWindowOrgX(hClient), RectInside.x1, RectInside.y1);
    ScalePos = GRAPH_SCALE_SetPos(_hScaleH, RectInside.y1 - 20);
  } else {
    /* Return to normal mode */
    BUTTON_SetText(hButton, "Full Screen");
    WM_MoveWindow(hButton, 0, -11);
    WM_ForEachDesc(WM_GetClientWindow(hDlg), _ForEach, &FullScreenMode); /* Show all descendants */
    WM_SetWindowPos(hGraph, Rect.x0, Rect.y0, Rect.x1 - Rect.x0 + 1, Rect.y1 - Rect.y0 + 1);
    FRAMEWIN_SetTitleVis(hDlg, 1);
    GRAPH_SCALE_SetPos(_hScaleH, ScalePos);
  }
}

/*********************************************************************