/***********************************************************************************************************                                                uC/GUI*                        Universal graphic software for embedded applications**                       (c) Copyright 2002, Micrium Inc., Weston, FL*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH**              礐/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        : SLIDER.cPurpose     : SLIDER for new emWin GSC widgets---------------------------END-OF-HEADER------------------------------*/#include <stdlib.h>#include <string.h>#include "GUI_Private.H"#include "SLIDER.h"#include "Widget.h"#if GUI_WINSUPPORT/***********************************************************************       Private config defaults************************************************************************//* Support for 3D effects */#ifndef SLIDER_USE_3D  #define SLIDER_USE_3D 1#endif/* Define colors */#ifndef SLIDER_BKCOLOR0_DEFAULT  #define SLIDER_BKCOLOR0_DEFAULT 0xc0c0c0#endif#ifndef SLIDER_BKCOLOR1_DEFAULT  #define SLIDER_BKCOLOR1_DEFAULT GUI_WHITE#endif#ifndef SLIDER_COLOR0_DEFAULT  #define SLIDER_COLOR0_DEFAULT 0xc0c0c0#endif#ifndef SLIDER_COLOR1_DEFAULT  #define SLIDER_COLOR1_DEFAULT GUI_BLACK#endif/***********************************************************************       Object definition************************************************************************/typedef struct {  WIDGET Widget;  GUI_COLOR aBkColor[2];  GUI_COLOR aColor[2];  int Min, Max, v;  int Flags;  int NumSections;  I16 Width;  #if GUI_DEBUG_LEVEL >1    int DebugId;  #endif  } SLIDER_Obj;/***********************************************************************       Static data************************************************************************//* None *//***********************************************************************       Macros for internal use************************************************************************/#define SLIDER_ID 0x4544   /* Magic numer, should be unique if possible */#define SLIDER_H2P(h) (SLIDER_Obj*) WM_H2P(h)#ifdef _DEBUG  #define SLIDER_ASSERT_IS_VALID_PTR(p) DEBUG_ERROROUT_IF(p->DebugId != SLIDER_ID, "xxx.c: Wrong handle type or Object not init'ed")  #define SLIDER_INIT_ID(p)   p->DebugId = SLIDER_ID  #define SLIDER_DEINIT_ID(p) p->DebugId = SLIDER_ID+1#else  #define SLIDER_ASSERT_IS_VALID_PTR(p)  #define SLIDER_INIT_ID(p)  #define SLIDER_DEINIT_ID(p)#endif/***********************************************************************       Static routines************************************************************************//***********************************************************************       _Paint*/static void _Paint(SLIDER_Obj* pObj/*, GUI_RECT*pRect*/) {  int i;  int xsize;  int x0;  GUI_RECT r, rFocus, rSlider, rSlot;  WIDGET__GetClientRect(&pObj->Widget, &rFocus);  GUI__ReduceRect(&r, &rFocus, 1);  xsize = r.x1 - r.x0  + 1 - pObj->Width /*- 2*xSizeEffect*/;  x0 = r.x0 + pObj->Width / 2;  GUI_SetBkColor(pObj->aBkColor[0]);  GUI_Clear();  /* Calculate Slider position */  rSlider = r;  rSlider.y0 = 5;  rSlider.x0 = x0 + xsize * (pObj->v - pObj->Min) / (pObj->Max - pObj->Min) - pObj->Width/2;  rSlider.x1  = rSlider.x0 + pObj->Width;  /* Calculate Slot position */  rSlot.x0 = x0;  rSlot.x1 = x0 + xsize;  rSlot.y0 = (rSlider.y0 + rSlider.y1) /2 -1;  rSlot.y1 = rSlot.y0 +3;  WIDGET__EFFECT_DrawDownRect(&pObj->Widget, &rSlot);        /* Draw slot */  /* Draw the ticks */  GUI_SetColor(GUI_BLACK);  for (i = 0; i <= pObj->NumSections; i++) {    int x = x0 + xsize * i / pObj->NumSections;    WIDGET__DrawVLine(&pObj->Widget, x, 1, 3);  }  /* Draw the slider itself */  GUI_SetColor(pObj->aColor[0]);  WIDGET__FillRectEx(&pObj->Widget, &rSlider);  GUI_SetColor(GUI_BLACK);  WIDGET__EFFECT_DrawUpRect(&pObj->Widget, &rSlider);  /* Draw focus */  if (pObj->Widget.State & WIDGET_STATE_FOCUS) {    GUI_SetColor(GUI_BLACK);    WIDGET__DrawFocusRect(&pObj->Widget, &rFocus, 0);  }}/***********************************************************************       _OnTouch*/static void _OnTouch(SLIDER_Handle hObj, SLIDER_Obj* pObj, WM_MESSAGE*pMsg) {  GUI_TOUCH_tState* pState = (GUI_TOUCH_tState*)pMsg->Data.p;  if (pMsg->Data.p) {  /* Something happened in our area (pressed or released) */    if (pState->Pressed) {      int Sel;      int Range = (pObj->Max - pObj->Min);      int x0, xsize;      int x;      x0 = 1 + pObj->Width/2;  /* 1 pixel focus rectangle + width of actual slider */      x = (pObj->Widget.State & WIDGET_STATE_VERTICAL) ? pState->y : pState->x;      x -= x0;      xsize = WIDGET__GetWindowSizeX(hObj) - 2 * x0;      if (x <= 0) {        Sel = pObj->Min;      } else if (x >= xsize) {        Sel = pObj->Max;      } else {        Sel = GUI__DivideRound(Range* x, xsize);        Sel += pObj->Min;      }      WM_SetFocus(hObj);      WM_SetCapture(hObj, 1);      SLIDER_SetValue(hObj, Sel);    }   }}/***********************************************************************       _OnKey*/static void  _OnKey(SLIDER_Handle hObj, WM_MESSAGE*pMsg) {  WM_KEY_INFO* pKeyInfo;  int Key;  pKeyInfo = (WM_KEY_INFO*)(pMsg->Data.p);  Key = pKeyInfo->Key;  if (pKeyInfo->PressedCnt > 0) {    switch (Key) {      case GUI_KEY_RIGHT:        SLIDER_Inc(hObj);        break;                    /* Send to parent by not doing anything */      case GUI_KEY_LEFT:        SLIDER_Dec(hObj);        break;                    /* Send to parent by not doing anything */      default:        return;    }  }}/***********************************************************************       _SLIDER_Callback*/static void _SLIDER_Callback (WM_MESSAGE *pMsg) {  SLIDER_Handle hObj;  SLIDER_Obj* pObj;  hObj = pMsg->hWin;  pObj = SLIDER_H2P(hObj);  /* Let widget handle the standard messages */  if (WIDGET_HandleActive(hObj, pMsg) == 0) {    return;  }  switch (pMsg->MsgId) {  case WM_PAINT:    GUI_DEBUG_LOG("SLIDER: _Callback(WM_PAINT)\n");    _Paint(pObj);    return;  case WM_TOUCH:    _OnTouch(hObj, pObj, pMsg);    break;  case WM_KEY:    _OnKey(hObj, pMsg);    break;  }  WM_DefaultProc(pMsg);}/***********************************************************************       Exported routines:  Create************************************************************************//* Note: the parameters to a create function may vary.         Some widgets may have multiple create functions */SLIDER_Handle SLIDER_Create (int x0, int y0, int xsize, int ysize, WM_HWIN hParent, int Id, int WinFlags, int SpecialFlags) {  SLIDER_Handle hObj;  /* Create the window */  WM_LOCK();  hObj = WM_CreateWindowAsChild(x0, y0, xsize, ysize, hParent,                       WinFlags, _SLIDER_Callback, sizeof(SLIDER_Obj)-sizeof(WM_Obj));  if (hObj) {    SLIDER_Obj* pObj = SLIDER_H2P(hObj);    U16 InitState;    /* Handle SpecialFlags */    InitState = WIDGET_STATE_ENABLED;    if (SpecialFlags & SLIDER_CF_VERTICAL) {      InitState |= WIDGET_CF_VERTICAL;    }    /* init widget specific variables */    WIDGET__Init(&pObj->Widget, InitState);    /* init member variables */    SLIDER_INIT_ID(pObj);    pObj->Widget.Id       = Id;    pObj->aBkColor[0]   = SLIDER_BKCOLOR0_DEFAULT;    pObj->aBkColor[1]   = SLIDER_BKCOLOR1_DEFAULT;    pObj->aColor[0]     = SLIDER_COLOR0_DEFAULT;    pObj->aColor[1]     = SLIDER_COLOR1_DEFAULT;    pObj->Width = 8;    pObj->Max =100;    pObj->Min =0;    pObj->NumSections = 10;  } else {    GUI_DEBUG_ERROROUT_IF(hObj==0, "SLIDER_Create failed")  }  WM_UNLOCK();  return hObj;}SLIDER_Handle SLIDER_CreateIndirect(const GUI_WIDGET_CREATE_INFO* pCreateInfo, WM_HWIN hWinParent, int x0, int y0, WM_CALLBACK* cb) {  SLIDER_Handle  hThis;  GUI_USE_PARA(cb);  hThis = SLIDER_Create(pCreateInfo->x0 + x0, pCreateInfo->y0 + y0, pCreateInfo->xSize, pCreateInfo->ySize,                        hWinParent, pCreateInfo->Id, 0, pCreateInfo->Flags);  return hThis;}/***********************************************************************       Exported routines:  Various methods************************************************************************/void SLIDER_Dec(SLIDER_Handle hObj) {  SLIDER_Obj* pObj;  if (hObj) {    WM_LOCK();    pObj = SLIDER_H2P(hObj);    if (pObj->v > pObj->Min) {      pObj->v--;      WM_InvalidateWindow(hObj);      WM_NotifyParent(hObj, WM_NOTIFICATION_VALUE_CHANGED);    }    WM_UNLOCK();  }}void SLIDER_Inc(SLIDER_Handle hObj) {  SLIDER_Obj* pObj;  if (hObj) {    WM_LOCK();    pObj = SLIDER_H2P(hObj);    if (pObj->v < pObj->Max) {      pObj->v++;      WM_InvalidateWindow(hObj);      WM_NotifyParent(hObj, WM_NOTIFICATION_VALUE_CHANGED);    }    WM_UNLOCK();  }}void SLIDER_SetWidth(SLIDER_Handle hObj, int Width) {  SLIDER_Obj* pObj;  if (hObj) {    WM_LOCK();    pObj = SLIDER_H2P(hObj);    if (pObj->Width != Width) {      pObj->Width = Width;      WM_InvalidateWindow(hObj);    }    WM_UNLOCK();  }}void SLIDER_SetValue(SLIDER_Handle hObj, int v) {  SLIDER_Obj* pObj;  if (hObj) {    WM_LOCK();    pObj = SLIDER_H2P(hObj);    /* Put in min/max range */    if (v < pObj->Min) {      v = pObj->Min;    }    if (v > pObj->Max) {      v = pObj->Max;    }    if (pObj->v != v) {      pObj->v = v;      WM_InvalidateWindow(hObj);      WM_NotifyParent(hObj, WM_NOTIFICATION_VALUE_CHANGED);    }    WM_UNLOCK();  }}void SLIDER_SetRange(SLIDER_Handle hObj, int Min, int Max) {  SLIDER_Obj* pObj;  if (hObj) {    WM_LOCK();    pObj = SLIDER_H2P(hObj);    pObj->Min = Min;    pObj->Max = Max;    WM_InvalidateWindow(hObj);    WM_UNLOCK();  }}/***********************************************************************       Query state************************************************************************/int SLIDER_GetValue(SLIDER_Handle hObj) {  int r = 0;  SLIDER_Obj* pObj;  if (hObj) {    WM_LOCK();    pObj = SLIDER_H2P(hObj);    r = pObj->v;    WM_UNLOCK();  }  return r;}#endif  /* #if GUI_WINSUPPORT */