framewin.c

ucgui的3.98版本的源代码

*       Private routines
*
**********************************************************************
*/
/*********************************************************************
*
*       FRAMEWIN_h2p
*/
#if GUI_DEBUG_LEVEL >= GUI_DEBUG_LEVEL_CHECK_ALL
FRAMEWIN_Obj * FRAMEWIN_h2p(FRAMEWIN_Handle h) {
  FRAMEWIN_Obj * p = (FRAMEWIN_Obj *)GUI_ALLOC_h2p(h);
  if (p) {
    if (p->DebugId != FRAMEWIN_ID) {
      GUI_DEBUG_ERROROUT("FRAMEWIN.c: Wrong handle type or Object not init'ed");
      return 0;
    }
  }
  return p;
}
#endif

/*********************************************************************
*
*       FRAMEWIN__CalcTitleHeight
*/
int FRAMEWIN__CalcTitleHeight(FRAMEWIN_Obj* pObj) {
  int r = 0;
  if (pObj->Widget.State & FRAMEWIN_SF_TITLEVIS) {
    r = pObj->Props.TitleHeight;
    if (r == 0) {
      r = 2 + GUI_GetYSizeOfFont(pObj->Props.pFont);
    }
  }
  return r;
}

/*********************************************************************
*
*       FRAMEWIN__CalcPositions
*/
void FRAMEWIN__CalcPositions(FRAMEWIN_Obj* pObj, POSITIONS* pPos) {
  WM_HWIN hChild;
  WM_Obj* pChild;
  int TitleHeight;
  int MenuHeight = 0;
  int IBorderSize = 0;
  int BorderSize;
  int xsize, ysize;
  int x0, x1, y0;
  BorderSize = pObj->Props.BorderSize;
  xsize = WM__GetWindowSizeX(&pObj->Widget.Win);
  ysize = WM__GetWindowSizeY(&pObj->Widget.Win);
  if (pObj->Widget.State & FRAMEWIN_SF_TITLEVIS) {
    IBorderSize = pObj->Props.IBorderSize;
  }
  TitleHeight = FRAMEWIN__CalcTitleHeight(pObj);
  if (pObj->hMenu) {
    MenuHeight = WM_GetWindowSizeY(pObj->hMenu);
  }
  pPos->TitleHeight = TitleHeight;
  pPos->MenuHeight  = MenuHeight;
  /* Set object properties accordingly */
  pPos->rClient.x0  =         BorderSize;
  pPos->rClient.x1  = xsize - BorderSize - 1;
  pPos->rClient.y0  =         BorderSize + IBorderSize + TitleHeight + MenuHeight;
  pPos->rClient.y1  = ysize - BorderSize - 1;
  /* Calculate title rect */
  pPos->rTitleText.x0 =         BorderSize;
  pPos->rTitleText.x1 = xsize - BorderSize - 1;
  pPos->rTitleText.y0 =         BorderSize;
  pPos->rTitleText.y1 =         BorderSize + TitleHeight - 1;
  /* Iterate over all children */
  for (hChild = pObj->Widget.Win.hFirstChild; hChild; hChild = pChild->hNext) {
    pChild = WM_H2P(hChild);
    x0 = pChild->Rect.x0 - pObj->Widget.Win.Rect.x0;
    x1 = pChild->Rect.x1 - pObj->Widget.Win.Rect.x0;
    y0 = pChild->Rect.y0 - pObj->Widget.Win.Rect.y0;
    if (y0 == BorderSize) {
      if (pChild->Status & WM_SF_ANCHOR_RIGHT) {
        if (x0 <= pPos->rTitleText.x1) {
          pPos->rTitleText.x1 = x0 - 1;
        }
      } else {
        if (x1 >= pPos->rTitleText.x0) {
          pPos->rTitleText.x0 = x1 + 1;
        }
      }
    }
  }
}

/*********************************************************************
*
*       FRAMEWIN__UpdatePositions
*/
void FRAMEWIN__UpdatePositions(FRAMEWIN_Obj* pObj) {
  /* Move client window accordingly */
  if (pObj->hClient || pObj->hMenu) {
    POSITIONS Pos;
    FRAMEWIN__CalcPositions(pObj, &Pos);
    if (pObj->hClient) {
      WM_MoveChildTo(pObj->hClient, Pos.rClient.x0, Pos.rClient.y0);
      WM_SetSize(pObj->hClient, 
                 Pos.rClient.x1 - Pos.rClient.x0 + 1, 
                 Pos.rClient.y1 - Pos.rClient.y0 + 1);
    }
    if (pObj->hMenu) {
      WM_MoveChildTo(pObj->hMenu, Pos.rClient.x0, Pos.rClient.y0 - Pos.MenuHeight);
    }
  }
}

/*********************************************************************
*
*        Exported API routines:  Callback
*
**********************************************************************
*/
/*********************************************************************
*
*       Framewin Callback
*/
void FRAMEWIN_Callback (WM_MESSAGE *pMsg) {
  FRAMEWIN_Handle hWin;
  FRAMEWIN_Obj * pObj;
  GUI_RECT * pRect;
  POSITIONS Pos;
  GUI_HOOK * pHook;
  hWin = (FRAMEWIN_Handle)(pMsg->hWin);
  pObj = (FRAMEWIN_Obj *)GUI_ALLOC_h2p(hWin); /* Don't use use WIDGET_H2P because WIDGET_INIT_ID() has not be called at this point */
  pRect = (GUI_RECT*)(pMsg->Data.p);
  /* Call hook functions */
  for (pHook = pObj->pFirstHook; pHook; pHook = pHook->pNext) {
    int r;
    r = (*pHook->pHookFunc)(pMsg);
    if (r) {
      return;   /* Message handled */
    }
  }
  switch (pMsg->MsgId) {
  case WM_HANDLE_DIALOG_STATUS:
    if (pMsg->Data.p) {                           /* set pointer to Dialog status */
      pObj->pDialogStatus = (WM_DIALOG_STATUS*)pMsg->Data.p;
    } else {                                      /* return pointer to Dialog status */
      pMsg->Data.p = pObj->pDialogStatus;      
    }
    return;
  case WM_PAINT:
    _Paint(pObj);
    break;
  case WM_TOUCH:
    _OnTouch(hWin, pObj, pMsg);
    return;                       /* Return here ... Message handled */
  case WM_GET_INSIDE_RECT:
    FRAMEWIN__CalcPositions(pObj, &Pos);
		*pRect = Pos.rClient;
    return;                       /* Return here ... Message handled */
  case WM_GET_CLIENT_WINDOW:      /* return handle to client window. For most windows, there is no seperate client window, so it is the same handle */
    pMsg->Data.v = (int)pObj->hClient;
    return;                       /* Return here ... Message handled */
  case WM_NOTIFY_PARENT:
    if (pMsg->Data.v == WM_NOTIFICATION_RELEASED) {
      WM_MESSAGE Msg;
      Msg.hWinSrc = hWin;
      Msg.Data    = pMsg->Data;
      Msg.MsgId   = WM_NOTIFY_PARENT_REFLECTION;
      WM__SendMessage(pMsg->hWinSrc, &Msg);
    }
    return;
  case WM_SET_FOCUS:                 /* We have received or lost focus */
    if (pMsg->Data.v == 1) {
      if (WM_IsWindow(pObj->hFocussedChild)) {
        WM_SetFocus(pObj->hFocussedChild);
      } else {
        pObj->hFocussedChild = WM_SetFocusOnNextChild(pObj->hClient);
      }
      FRAMEWIN_SetActive(hWin, 1);
      pMsg->Data.v = 0;              /* Focus could be accepted */
    } else {
      FRAMEWIN_SetActive(hWin, 0);
    }
    return;
  case WM_TOUCH_CHILD:
    /* If a child of this framewindow has been touched and the frame window was not active,
       the framewindow will receive the focus.
     */
    if (!(pObj->Flags & FRAMEWIN_SF_ACTIVE)) {
      const WM_MESSAGE * pMsgOrg;
      const GUI_PID_STATE * pState;
      pMsgOrg = (const WM_MESSAGE*)pMsg->Data.p;      /* The original touch message */
      pState = (const GUI_PID_STATE*)pMsgOrg->Data.p;
      if (pState) {          /* Message may not have a valid pointer (moved out) ! */
        if (pState->Pressed) {
          WM_SetFocus(hWin);
        }
      }
    }
    break;
  case WM_NOTIFY_CHILD_HAS_FOCUS:
    _OnChildHasFocus(hWin, pObj, pMsg);
    break;
  case WM_DELETE:
    GUI_DEBUG_LOG("FRAMEWIN: FRAMEWIN_Callback(WM_DELETE)\n");
    GUI_ALLOC_FreePtr(&pObj->hText);
    break;
  }
  /* Let widget handle the standard messages */
  if (WIDGET_HandleActive(hWin, pMsg) == 0) {
    return;
  }
  WM_DefaultProc(pMsg);
}

/*********************************************************************
*
*        Exported API routines:  Create
*
**********************************************************************
*/
/*********************************************************************
*
*       FRAMEWIN_CreateEx
*/
FRAMEWIN_Handle FRAMEWIN_CreateEx(int x0, int y0, int xsize, int ysize, WM_HWIN hParent,
                                  int WinFlags, int ExFlags, int Id, const char* pTitle, WM_CALLBACK* cb)
{
  FRAMEWIN_Handle hObj;
  /* Create the window */
  GUI_LOCK();
  WinFlags |= WM_CF_LATE_CLIP;    /* Always use late clipping since widget is optimized for it. */
  hObj = WM_CreateWindowAsChild(x0, y0, xsize, ysize, hParent, WinFlags, FRAMEWIN_Callback,
                                sizeof(FRAMEWIN_Obj) - sizeof(WM_Obj));
  if (hObj) {
    FRAMEWIN_Obj* pObj;
    POSITIONS Pos;
    pObj = (FRAMEWIN_Obj *)GUI_ALLOC_h2p(hObj); /* Don't use use WIDGET_H2P because WIDGET_INIT_ID() has not be called at this point */
    /* init widget specific variables */
    WIDGET__Init(&pObj->Widget, Id, WIDGET_STATE_FOCUSSABLE | FRAMEWIN_SF_TITLEVIS);
    /* init member variables */
    FRAMEWIN_INIT_ID(pObj);
    pObj->Props = FRAMEWIN__DefaultProps;
    pObj->cb             = cb;
    pObj->Flags          = ExFlags;
    pObj->hFocussedChild = 0;
    pObj->hMenu          = 0;
    pObj->pFirstHook     = NULL;
    FRAMEWIN__CalcPositions(pObj, &Pos);
    pObj->hClient = WM_CreateWindowAsChild(Pos.rClient.x0,Pos.rClient.y0,
                                           Pos.rClient.x1 - Pos.rClient.x0 +1,
                                           Pos.rClient.y1 - Pos.rClient.y0 +1,
                                           hObj, 
                                           WM_CF_ANCHOR_RIGHT | WM_CF_ANCHOR_LEFT | WM_CF_ANCHOR_TOP | WM_CF_ANCHOR_BOTTOM | WM_CF_SHOW | WM_CF_LATE_CLIP, 
                                           FRAMEWIN__cbClient, 0);
    /* Normally we disable memory devices for the frame window:
     * The frame window does not flicker, and not using memory devices is usually faster.
     * You can still use memory by explicitly specifying the flag
     */
    if ((WinFlags & (WM_CF_MEMDEV | (WM_CF_MEMDEV_ON_REDRAW))) == 0) {
      WM_DisableMemdev(hObj);
    }
    FRAMEWIN_SetText(hObj, pTitle);
  }
  GUI_UNLOCK();
  return hObj;
}

/*********************************************************************
*
*        Exported routines:  Set Properties
*
**********************************************************************
*/
/*********************************************************************
*
*       FRAMEWIN_SetText
*/
void FRAMEWIN_SetText(FRAMEWIN_Handle hObj, const char* s) {
  if (hObj) {
    FRAMEWIN_Obj* pObj;
    GUI_LOCK();
    pObj = FRAMEWIN_H2P(hObj);
    if (GUI__SetText(&pObj->hText, s)) {
      FRAMEWIN_Invalidate(hObj);
    }
    GUI_UNLOCK();
  }
}

/*********************************************************************
*
*       FRAMEWIN_SetTextAlign
*/
void FRAMEWIN_SetTextAlign(FRAMEWIN_Handle hObj, int Align) {
  if (hObj) {
    FRAMEWIN_Obj* pObj;
    GUI_LOCK();
    pObj = FRAMEWIN_H2P(hObj);
    if (pObj->Props.TextAlign != Align) {
      pObj->Props.TextAlign = Align;
      FRAMEWIN_Invalidate(hObj);
    }
    GUI_UNLOCK();
  }
}

/*********************************************************************
*
*       FRAMEWIN_SetMoveable
*/
void FRAMEWIN_SetMoveable(FRAMEWIN_Handle hObj, int State) {
  if (hObj) {
    FRAMEWIN_Obj* pObj;
    GUI_LOCK();
    pObj = FRAMEWIN_H2P(hObj);
    if (State) {
      pObj->Flags |= FRAMEWIN_CF_MOVEABLE;
    } else {
      pObj->Flags &= ~FRAMEWIN_CF_MOVEABLE;
    }
    GUI_UNLOCK();
  }
}

/*********************************************************************
*
*       FRAMEWIN_SetActive
*/
void FRAMEWIN_SetActive(FRAMEWIN_Handle hObj, int State) {
  if (hObj) {
    WM_LOCK();
    _SetActive(hObj, State);
    WM_UNLOCK();
  }
}

#else
  void WIDGET_FrameWin(void) {} /* avoid empty object files */
#endif /* GUI_WINSUPPORT */