📄 scrollbar.lst
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}
}
}
/*********************************************************************
*
* _OnKey
*/
static void _OnKey(SCROLLBAR_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:
case GUI_KEY_DOWN:
SCROLLBAR_Inc(hObj);
break; /* Send to parent by not doing anything */
case GUI_KEY_LEFT:
case GUI_KEY_UP:
SCROLLBAR_Dec(hObj);
break; /* Send to parent by not doing anything */
default:
return;
}
}
}
/*********************************************************************
C51 COMPILER V8.05a SCROLLBAR 04/11/2008 14:19:38 PAGE 6
*
* _OnSetScrollState
*/
static void _OnSetScrollState(SCROLLBAR_Handle hObj, SCROLLBAR_Obj* pObj, const WM_SCROLL_STATE* pState) {
pObj->NumItems = pState->NumItems;
pObj->PageSize = pState->PageSize;
pObj->v = pState->v;
WM_InvalidateWindow(hObj);
}
/*********************************************************************
*
* _SCROLLBAR_Callback
*/
static void _SCROLLBAR_Callback (WM_MESSAGE *pMsg) {
SCROLLBAR_Handle hObj;
SCROLLBAR_Obj* pObj;
hObj = pMsg->hWin;
pObj = SCROLLBAR_H2P(hObj);
/* Let widget handle the standard messages */
if (WIDGET_HandleActive(hObj, pMsg) == 0) {
return;
}
switch (pMsg->MsgId) {
case WM_PAINT:
GUI_DEBUG_LOG("SCROLLBAR: _Callback(WM_PAINT)\n");
_Paint(pObj);
return;
case WM_TOUCH:
_OnTouch(hObj, pObj, pMsg);
break;
case WM_KEY:
_OnKey(hObj, pMsg);
break;
case WM_SET_SCROLL_STATE:
_OnSetScrollState(hObj, pObj, (const WM_SCROLL_STATE*)pMsg->Data.p);
break;
case WM_GET_SCROLL_STATE:
((WM_SCROLL_STATE*)pMsg->Data.p)->NumItems = pObj->NumItems;
((WM_SCROLL_STATE*)pMsg->Data.p)->PageSize = pObj->PageSize;
((WM_SCROLL_STATE*)pMsg->Data.p)->v = pObj->v;
break;
}
WM_DefaultProc(pMsg);
}
/*********************************************************************
*
* Exported routines: Create
*
**********************************************************************
*/
/* Note: the parameters to a create function may vary.
Some widgets may have multiple create functions */
SCROLLBAR_Handle SCROLLBAR_Create (int x0, int y0, int xsize, int ysize, WM_HWIN hParent, int Id, int WinF
-lags, int SpecialFlags) {
SCROLLBAR_Handle hObj;
WM_LOCK();
C51 COMPILER V8.05a SCROLLBAR 04/11/2008 14:19:38 PAGE 7
/* Set defaults if necessary */
if ((xsize == 0) && (ysize == 0)) {
GUI_RECT Rect;
WM_GetInsideRect(hParent, &Rect);
GUI_MoveRect(&Rect, -Rect.x0, -Rect.y0);
if (SpecialFlags & SCROLLBAR_CF_VERTICAL) {
xsize = _DefaultWidth;
x0 = Rect.x1 +1 - xsize;
y0 = Rect.y0;
ysize = Rect.y1 - Rect.y0 +1;
} else {
ysize = _DefaultWidth;
y0 = Rect.y1 +1 - ysize;
x0 = Rect.x0;
xsize = Rect.x1 - Rect.x0 +1;
}
}
/* Create the window */
hObj = WM_CreateWindowAsChild(x0, y0, xsize, ysize, hParent,
WinFlags, _SCROLLBAR_Callback, sizeof(SCROLLBAR_Obj)-sizeof(WM_Obj));
if (hObj) {
SCROLLBAR_Obj* pObj = SCROLLBAR_H2P(hObj);
U16 InitState;
/* Handle SpecialFlags */
InitState = WIDGET_STATE_ENABLED;
if (SpecialFlags & SCROLLBAR_CF_VERTICAL) {
InitState |= WIDGET_CF_VERTICAL;
}
if ((SpecialFlags & SCROLLBAR_CF_FOCUSSABLE) == 0) {
InitState |= WIDGET_STATE_FOCUSSABLE;
}
/* init widget specific variables */
WIDGET__Init(&pObj->Widget, InitState);
/* init member variables */
SCROLLBAR_INIT_ID(pObj);
pObj->Widget.Id = Id;
pObj->aBkColor[0] = SCROLLBAR_BKCOLOR0_DEFAULT;
pObj->aBkColor[1] = SCROLLBAR_BKCOLOR1_DEFAULT;
pObj->aColor[0] = SCROLLBAR_COLOR0_DEFAULT;
pObj->aColor[1] = SCROLLBAR_COLOR1_DEFAULT;
pObj->NumItems = 100;
pObj->PageSize = 10;
} else {
GUI_DEBUG_ERROROUT_IF(hObj==0, "SCROLLBAR_Create failed")
}
WM_UNLOCK();
return hObj;
}
SCROLLBAR_Handle SCROLLBAR_CreateAttached(WM_HWIN hParent, int SpecialFlags) {
SCROLLBAR_Handle hThis;
int Id;
Id = (SpecialFlags & SCROLLBAR_CF_VERTICAL) ? GUI_ID_VSCROLL : GUI_ID_HSCROLL;
hThis = SCROLLBAR_Create(0,0,0,0, hParent, Id, WM_CF_SHOW, /* WinFlags */
SpecialFlags);
if (hThis) {
WM_NotifyParent(hThis, WM_NOTIFICATION_SCROLLBAR_ADDED);
}
return hThis;
}
SCROLLBAR_Handle SCROLLBAR_CreateIndirect(const GUI_WIDGET_CREATE_INFO* pCreateInfo, WM_HWIN hWinParent, i
C51 COMPILER V8.05a SCROLLBAR 04/11/2008 14:19:38 PAGE 8
-nt x0, int y0, WM_CALLBACK* cb) {
SCROLLBAR_Handle hThis;
GUI_USE_PARA(cb);
hThis = SCROLLBAR_Create(pCreateInfo->x0 + x0, pCreateInfo->y0 + y0, pCreateInfo->xSize, pCreateInfo->yS
-ize,
hWinParent, pCreateInfo->Id, 0, pCreateInfo->Flags);
return hThis;
}
/*********************************************************************
*
* Exported routines: Various methods
*
**********************************************************************
*/
void SCROLLBAR_Dec(SCROLLBAR_Handle hObj) { SCROLLBAR_AddValue(hObj, -1); }
void SCROLLBAR_Inc(SCROLLBAR_Handle hObj) { SCROLLBAR_AddValue(hObj, 1); }
void SCROLLBAR_AddValue(SCROLLBAR_Handle hObj, int Add) {
SCROLLBAR_Obj* pObj;
if (hObj) {
WM_LOCK();
pObj = SCROLLBAR_H2P(hObj);
SCROLLBAR_SetValue(hObj, pObj->v + Add);
WM_UNLOCK();
}
}
void SCROLLBAR_SetValue(SCROLLBAR_Handle hObj, int v) {
SCROLLBAR_Obj* pObj;
int Max;
if (hObj) {
WM_LOCK();
pObj = SCROLLBAR_H2P(hObj);
Max = pObj->NumItems - pObj->PageSize;
if (Max < 0)
Max =0;
/* Put in min/max range */
if (v < 0) {
v = 0;
}
if (v > Max) {
v = Max;
}
if (pObj->v != v) {
pObj->v = v;
WM_InvalidateWindow(hObj);
WM_NotifyParent(hObj, WM_NOTIFICATION_VALUE_CHANGED);
}
WM_UNLOCK();
}
}
void SCROLLBAR_SetNumItems(SCROLLBAR_Handle hObj, int NumItems) {
SCROLLBAR_Obj* pObj;
if (hObj) {
WM_LOCK();
pObj = SCROLLBAR_H2P(hObj);
if (pObj->NumItems != NumItems) {
pObj->NumItems = NumItems;
C51 COMPILER V8.05a SCROLLBAR 04/11/2008 14:19:38 PAGE 9
WM_InvalidateWindow(hObj);
}
WM_UNLOCK();
}
}
void SCROLLBAR_SetPageSize(SCROLLBAR_Handle hObj, int PageSize) {
SCROLLBAR_Obj* pObj;
if (hObj) {
WM_LOCK();
pObj = SCROLLBAR_H2P(hObj);
if (pObj->PageSize != PageSize) {
pObj->PageSize = PageSize;
WM_InvalidateWindow(hObj);
}
WM_UNLOCK();
}
}
void SCROLLBAR_SetState (SCROLLBAR_Handle hObj, const WM_SCROLL_STATE* pState) {
if (hObj) {
SCROLLBAR_SetPageSize(hObj, pState->PageSize);
SCROLLBAR_SetNumItems(hObj, pState->NumItems);
SCROLLBAR_SetValue (hObj, pState->v);
}
}
/*********************************************************************
*
* Query state
*
**********************************************************************
*/
int SCROLLBAR_GetValue(SCROLLBAR_Handle hObj) {
int r = 0;
SCROLLBAR_Obj* pObj;
if (hObj) {
WM_LOCK();
pObj = SCROLLBAR_H2P(hObj);
r = pObj->v;
WM_UNLOCK();
}
return r;
}
#endif /* #if GUI_WINSUPPORT */
531
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MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = ---- ----
CONSTANT SIZE = ---- ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = ---- ----
IDATA SIZE = ---- ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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