/**********************************************************************                SEGGER MICROCONTROLLER SYSTEME GmbH                 **        Solutions for real time microcontroller applications        **                                                                    **                    emWin GSC sample code                           **                                                                    ***********************************************************************----------------------------------------------------------------------File        : WIDGET_ListBoxOwnerDraw.cPurpose     : Demonstrates a owner drawn list box----------------------------------------------------------------------*/#include <stddef.h>#include "GUI.h"#include "DIALOG.h"/***********************************************************************       Static data************************************************************************/static int _MultiSel;static int _OwnerDrawn;static int _VarY = 1;static int _PrevTime;/***********************************************************************       Bitmap data for user drawn list box*/const GUI_COLOR ColorsSmilie0[] = {     0xFFFFFF,0x000000,0x0000FF};const GUI_COLOR ColorsSmilie1[] = {     0xFFFFFF,0x000000,0x00FFFF};const GUI_LOGPALETTE PalSmilie0 = {  3,	/* number of entries */  1, 	/* Has transparency */  &ColorsSmilie0[0]};const GUI_LOGPALETTE PalSmilie1 = {  3,	/* number of entries */  1, 	/* Has transparency */  &ColorsSmilie1[0]};const unsigned char acSmilie0[] = {  0x00, 0x55, 0x40, 0x00,  0x01, 0xAA, 0x90, 0x00,  0x06, 0xAA, 0xA4, 0x00,  0x19, 0x6A, 0x59, 0x00,  0x69, 0x6A, 0x5A, 0x40,  0x6A, 0xA6, 0xAA, 0x40,  0x6A, 0xA6, 0xAA, 0x40,  0x6A, 0xA6, 0xAA, 0x40,  0x6A, 0xAA, 0xAA, 0x40,  0x1A, 0x95, 0xA9, 0x00,  0x06, 0x6A, 0x64, 0x00,  0x01, 0xAA, 0x90, 0x00,  0x00, 0x55, 0x40, 0x00};const unsigned char acSmilie1[] = {  0x00, 0x55, 0x40, 0x00,  0x01, 0xAA, 0x90, 0x00,  0x06, 0xAA, 0xA4, 0x00,  0x19, 0x6A, 0x59, 0x00,  0x69, 0x6A, 0x5A, 0x40,  0x6A, 0xA6, 0xAA, 0x40,  0x6A, 0xA6, 0xAA, 0x40,  0x6A, 0xA6, 0xAA, 0x40,  0x6A, 0xAA, 0xAA, 0x40,  0x1A, 0x6A, 0x69, 0x00,  0x06, 0x95, 0xA4, 0x00,  0x01, 0xAA, 0x90, 0x00,  0x00, 0x55, 0x40, 0x00};const GUI_BITMAP bmSmilie0 = { 13, /* XSize */ 13, /* YSize */ 4,  /* BytesPerLine */ 2,  /* BitsPerPixel */ acSmilie0,   /* Pointer to picture data (indices) */ &PalSmilie0  /* Pointer to palette */};const GUI_BITMAP bmSmilie1 = { 13, /* XSize */ 13, /* YSize */ 4,  /* BytesPerLine */ 2,  /* BitsPerPixel */ acSmilie1,   /* Pointer to picture data (indices) */ &PalSmilie1  /* Pointer to palette */};/***********************************************************************       Default contents of list box*/static const GUI_ConstString _ListBox[] = {  "English", "Deutsch", NULL};/***********************************************************************       Dialog resource** This table conatins the info required to create the dialog.* It has been created manually, but could also be created by a GUI-builder.*/static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] = {  { FRAMEWIN_CreateIndirect,  "Owner drawn list box",    0,                  50,  50, 220, 140, FRAMEWIN_CF_MOVEABLE },  { LISTBOX_CreateIndirect,   0,                         GUI_ID_MULTIEDIT0,  10,  10, 100, 100, 0, 100 },/* Check box for multi select mode */  { CHECKBOX_CreateIndirect,  0,                         GUI_ID_CHECK0,     120,  10,   0,   0 },  { TEXT_CreateIndirect,      "Multi select",            0,                 140,  10,  80,  15, TEXT_CF_LEFT },/* Check box for owner drawn list box */  { CHECKBOX_CreateIndirect,  0,                         GUI_ID_CHECK1,     120,  35,   0,   0 },  { TEXT_CreateIndirect,      "Owner drawn",              0,                140,  35,  80,  15, TEXT_CF_LEFT },/* Buttons */  { BUTTON_CreateIndirect,    "OK",                      GUI_ID_OK,         120,  65,  80,  20 },  { BUTTON_CreateIndirect,    "Cancel",                  GUI_ID_CANCEL,     120,  90,  80,  20 },};/***********************************************************************       Static code************************************************************************//***********************************************************************       _cbBkWindow*/static void _cbBkWindow(WM_MESSAGE* pMsg) {  switch (pMsg->MsgId) {  case WM_PAINT:    GUI_SetBkColor(GUI_RED);    GUI_Clear();    GUI_SetColor(GUI_WHITE);    GUI_SetFont(&GUI_Font24_ASCII);    GUI_DispStringHCenterAt("WIDGET_ListBoxOwnerDraw", 160, 5);    break;  default:    WM_DefaultProc(pMsg);  }}/***********************************************************************       _GetItemSizeX*/static int _GetItemSizeX(WM_HWIN hWin, int ItemIndex) {  char acBuffer[100];  int  DistX;  LISTBOX_GetItemText(hWin, ItemIndex, acBuffer, sizeof(acBuffer));  DistX = GUI_GetStringDistX(acBuffer);  return DistX + bmSmilie0.XSize + 16;}/***********************************************************************       _GetItemSizeY*/static int _GetItemSizeY(WM_HWIN hWin, int ItemIndex) {  int DistY;  DistY = GUI_GetFontDistY() + 1;  if (LISTBOX_GetMulti(hWin)) {    if (LISTBOX_GetItemSel(hWin, ItemIndex)) {      DistY += 8;    }  } else if (LISTBOX_GetSel(hWin) == ItemIndex) {    DistY += 8;  }  return DistY;}/***********************************************************************       _OwnerDraw** Purpose:*   This is the owner draw function.*   It allows complete customization of how the items in the listbox are*   drawn. A command specifies what the function should do;*   The minimum is to react to the draw command (WIDGET_ITEM_DRAW);*   If the item x-size differs from the default, then this information*   needs to be returned in reaction to WIDGET_ITEM_GET_XSIZE.*   To insure compatibility with future version, all unhandled commands*   must call the default routine LISTBOX_OwnerDraw.*/static int _OwnerDraw(const WIDGET_ITEM_DRAW_INFO * pDrawItemInfo) {  WM_HWIN hWin;  int Index;  hWin     = pDrawItemInfo->hWin;  Index    = pDrawItemInfo->ItemIndex;  switch (pDrawItemInfo->Cmd) {  case WIDGET_ITEM_GET_XSIZE:    return _GetItemSizeX(hWin, Index);  case WIDGET_ITEM_GET_YSIZE:    return _GetItemSizeY(hWin, Index);  case WIDGET_ITEM_DRAW:    {      int MultiSel, Sel, YSize, FontDistY;      int IsDisabled, IsSelected;      int ColorIndex = 0;      char acBuffer[100];      const GUI_BITMAP * pBm;      const GUI_FONT* pOldFont = 0;      GUI_COLOR aColor[4] = {GUI_BLACK, GUI_WHITE, GUI_WHITE, GUI_GRAY};      GUI_COLOR aBkColor[4] = {GUI_WHITE, GUI_GRAY, GUI_BLUE, 0xC0C0C0};      IsDisabled = LISTBOX_GetItemDisabled(pDrawItemInfo->hWin, pDrawItemInfo->ItemIndex);      IsSelected = LISTBOX_GetItemSel(hWin, Index);      MultiSel   = LISTBOX_GetMulti(hWin);      Sel        = LISTBOX_GetSel(hWin);      YSize      = _GetItemSizeY(hWin, Index);      /* Calculate color index */      if (MultiSel) {        if (IsDisabled) {          ColorIndex = 3;        } else {          ColorIndex = (IsSelected) ? 2 : 0;        }      } else {        if (IsDisabled) {          ColorIndex = 3;        } else {          if (pDrawItemInfo->ItemIndex == Sel) {            ColorIndex = WM_HasFocus(pDrawItemInfo->hWin) ? 2 : 1;          } else {            ColorIndex = 0;          }        }      }      /* Draw item */      GUI_SetBkColor(aBkColor[ColorIndex]);      GUI_SetColor  (aColor[ColorIndex]);      LISTBOX_GetItemText(pDrawItemInfo->hWin, pDrawItemInfo->ItemIndex, acBuffer, sizeof(acBuffer));      GUI_Clear();      if ((ColorIndex == 1) || (ColorIndex == 2)) {        pOldFont = GUI_SetFont(&GUI_Font13B_1);      }      FontDistY  = GUI_GetFontDistY();      GUI_DispStringAt(acBuffer, pDrawItemInfo->x0 + bmSmilie0.XSize + 16, pDrawItemInfo->y0 + (YSize - FontDistY) / 2);      if (pOldFont) {        GUI_SetFont(pOldFont);      }      GUI_DispCEOL();      /* Draw bitmap */      pBm = MultiSel ? IsSelected ? &bmSmilie1 : &bmSmilie0 : (pDrawItemInfo->ItemIndex == Sel) ? &bmSmilie1 : &bmSmilie0;      GUI_DrawBitmap(pBm, pDrawItemInfo->x0 + 7, pDrawItemInfo->y0 + (YSize - pBm->YSize) / 2);      /* Draw focus rectangle */      if (MultiSel && (pDrawItemInfo->ItemIndex == Sel)) {        GUI_RECT rFocus;        GUI_RECT rInside;        WM_GetInsideRectEx(pDrawItemInfo->hWin, &rInside);        rFocus.x0 = pDrawItemInfo->x0;        rFocus.y0 = pDrawItemInfo->y0;        rFocus.x1 = rInside.x1;        rFocus.y1 = pDrawItemInfo->y0 + YSize - 1;        GUI_SetColor(GUI_WHITE - aBkColor[ColorIndex]);        GUI_DrawFocusRect(&rFocus, 0);      }    }    break;  default:    return LISTBOX_OwnerDraw(pDrawItemInfo);  }  return 0;}/***********************************************************************       _cbCallback*/static void _cbCallback(WM_MESSAGE * pMsg) {  int NCode, Id;  WM_HWIN hDlg, hListBox, hItem;  hDlg = pMsg->hWin;  hListBox = WM_GetDialogItem(hDlg, GUI_ID_MULTIEDIT0);  switch (pMsg->MsgId) {    case WM_INIT_DIALOG:      LISTBOX_SetText(hListBox, _ListBox);      LISTBOX_AddString(hListBox, "Fran鏰is");      LISTBOX_AddString(hListBox, "Japanese");      LISTBOX_AddString(hListBox, "Italiano");      LISTBOX_AddString(hListBox, "Espa駉l");      LISTBOX_AddString(hListBox, "Greek");      LISTBOX_AddString(hListBox, "Hebrew");      LISTBOX_AddString(hListBox, "Dutch");      LISTBOX_AddString(hListBox, "Other language ...");      LISTBOX_SetScrollStepH(hListBox, 6);      LISTBOX_SetAutoScrollH(hListBox, 1);      LISTBOX_SetAutoScrollV(hListBox, 1);      LISTBOX_SetOwnerDraw(hListBox, _OwnerDraw);      hItem  = WM_GetDialogItem(hDlg, GUI_ID_CHECK1);      CHECKBOX_Check(hItem);      break;    case WM_KEY:      switch (((WM_KEY_INFO*)(pMsg->Data.p))->Key) {        case GUI_KEY_ESCAPE:          GUI_EndDialog(hDlg, 1);          break;        case GUI_KEY_ENTER:          GUI_EndDialog(hDlg, 0);          break;      }      break;    case WM_TOUCH_CHILD:      WM_SetFocus(hListBox);      break;    case WM_NOTIFY_PARENT:      Id    = WM_GetId(pMsg->hWinSrc);      /* Id of widget */      NCode = pMsg->Data.v;                 /* Notification code */      hItem  = WM_GetDialogItem(hDlg, Id);      switch (NCode) {        case WM_NOTIFICATION_SEL_CHANGED:          LISTBOX_InvalidateItem(hListBox, LISTBOX_ALL_ITEMS);          break;        case WM_NOTIFICATION_RELEASED:      /* React only if released */          switch (Id) {            case GUI_ID_OK:              GUI_EndDialog(hDlg, 0);              break;            case GUI_ID_CANCEL:              GUI_EndDialog(hDlg, 1);              break;            case GUI_ID_CHECK0:              _MultiSel ^= 1;              LISTBOX_SetMulti(hListBox, _MultiSel);              WM_SetFocus(hListBox);              LISTBOX_InvalidateItem(hListBox, LISTBOX_ALL_ITEMS);              break;            case GUI_ID_CHECK1:              _OwnerDrawn ^= 1;              if (_OwnerDrawn) {                LISTBOX_SetOwnerDraw(hListBox, _OwnerDraw);              } else {                LISTBOX_SetOwnerDraw(hListBox, NULL);              }              LISTBOX_InvalidateItem(hListBox, LISTBOX_ALL_ITEMS);              break;          }          break;      }      break;    default:      WM_DefaultProc(pMsg);  }}/***********************************************************************       MainTask**       Demonstrates a owner drawn list box************************************************************************/void MainTask(void) {  GUI_Init();  WM_SetCallback(WM_HBKWIN, &_cbBkWindow);  WM_SetCreateFlags(WM_CF_MEMDEV);  /* Use memory devices on all windows to avoid flicker */  while (1) {    _MultiSel   = 0;    _OwnerDrawn = 1;    GUI_ExecDialogBox(_aDialogCreate, GUI_COUNTOF(_aDialogCreate), &_cbCallback, 0, 0, 0);    GUI_Delay(1000);  }}