/*********************************************************************
*
* _AddKey
*
* Returns: 1 if Key has been consumed
* 0 else
*/
static int _AddKey(LISTBOX_Handle hObj, int Key) {
LISTBOX_Obj* pObj;
pObj = LISTBOX_H2P(hObj);
switch (Key) {
case ' ':
_ToggleMultiSel(hObj, pObj, pObj->Sel);
return 1; /* Key has been consumed */
case GUI_KEY_RIGHT:
if (WM_SetScrollValue(&pObj->ScrollStateH, pObj->ScrollStateH.v + pObj->Props.ScrollStepH)) {
LISTBOX_UpdateScrollers(hObj);
LISTBOX__InvalidateInsideArea(hObj);
}
return 1; /* Key has been consumed */
case GUI_KEY_LEFT:
if (WM_SetScrollValue(&pObj->ScrollStateH, pObj->ScrollStateH.v - pObj->Props.ScrollStepH)) {
LISTBOX_UpdateScrollers(hObj);
LISTBOX__InvalidateInsideArea(hObj);
}
return 1; /* Key has been consumed */
case GUI_KEY_DOWN:
LISTBOX_IncSel(hObj);
return 1; /* Key has been consumed */
case GUI_KEY_UP:
LISTBOX_DecSel(hObj);
return 1; /* Key has been consumed */
default:
if(_IsAlphaNum(Key)) {
_SelectByKey(hObj, Key);
return 1; /* Key has been consumed */
}
}
return 0;
}
/*********************************************************************
*
* LISTBOX_CreateEx
*/
LISTBOX_Handle LISTBOX_CreateEx(int x0, int y0, int xsize, int ysize, WM_HWIN hParent,
int WinFlags, int ExFlags, int Id, const GUI_ConstString* ppText)
{
LISTBOX_Handle hObj;
GUI_USE_PARA(ExFlags);
hObj = WM_CreateWindowAsChild(x0, y0, xsize, ysize, hParent, WinFlags, _LISTBOX_Callback,
sizeof(LISTBOX_Obj) - sizeof(WM_Obj));
if (hObj) {
LISTBOX_Obj* pObj;
WM_LOCK();
pObj = LISTBOX_H2P(hObj);
/* Init sub-classes */
GUI_ARRAY_CREATE(&pObj->ItemArray);
/* init widget specific variables */
WIDGET__Init(&pObj->Widget, Id, WIDGET_STATE_FOCUSSABLE);
pObj->Props = LISTBOX_DefaultProps;
if (ppText) {
/* init member variables */
/* Set non-zero attributes */
LISTBOX_SetText(hObj, ppText);
}
INIT_ID(pObj);
LISTBOX_UpdateScrollers(hObj);
WM_UNLOCK();
}
return hObj;
}
/*********************************************************************
*
* LISTBOX_InvalidateItem
*/
void LISTBOX_InvalidateItem(LISTBOX_Handle hObj, int Index) {
if (hObj) {
LISTBOX_Obj* pObj;
int NumItems;
WM_LOCK();
pObj = LISTBOX_H2P(hObj);
NumItems = LISTBOX__GetNumItems(pObj);
if (Index < NumItems) {
if (Index < 0) {
int i;
for (i = 0; i < NumItems; i++) {
LISTBOX__InvalidateItemSize(pObj, i);
}
LISTBOX_UpdateScrollers(hObj);
LISTBOX__InvalidateInsideArea(hObj);
} else {
LISTBOX__InvalidateItemSize(pObj, Index);
LISTBOX_UpdateScrollers(hObj);
LISTBOX__InvalidateItemAndBelow(hObj, pObj, Index);
}
}
WM_UNLOCK();
}
}
/*********************************************************************
*
* LISTBOX_AddString
*/
void LISTBOX_AddString(LISTBOX_Handle hObj, const char* s) {
if (hObj && s) {
LISTBOX_Obj* pObj;
LISTBOX_ITEM Item = {0, 0};
WM_LOCK();
pObj = LISTBOX_H2P(hObj);
if (GUI_ARRAY_AddItem(&pObj->ItemArray, &Item, sizeof(LISTBOX_ITEM) + strlen(s)) == 0) {
unsigned ItemIndex = GUI_ARRAY_GetNumItems(&pObj->ItemArray) - 1;
LISTBOX_ITEM* pItem= (LISTBOX_ITEM*)GUI_ARRAY_GetpItem(&pObj->ItemArray, ItemIndex);
strcpy(pItem->acText, s);
LISTBOX__InvalidateItemSize(pObj, ItemIndex);
LISTBOX_UpdateScrollers(hObj);
LISTBOX__InvalidateItem(hObj, pObj, ItemIndex);
}
WM_UNLOCK();
}
}
/*********************************************************************
*
* LISTBOX_SetString
*/
void LISTBOX_SetString(LISTBOX_Handle hObj, const char* s, unsigned int Index) {
if (hObj) {
LISTBOX_Obj* pObj;
WM_LOCK();
pObj = LISTBOX_H2P(hObj);
if (Index < (unsigned int)LISTBOX__GetNumItems(pObj)) {
LISTBOX_ITEM* pItem;
pItem = (LISTBOX_ITEM*)GUI_ARRAY_ResizeItem(&pObj->ItemArray, Index, sizeof(LISTBOX_ITEM) + strlen(s));
if (pItem) {
strcpy(pItem->acText, s);
LISTBOX__InvalidateItemSize(pObj, Index);
LISTBOX_UpdateScrollers(hObj);
LISTBOX__InvalidateItem(hObj, pObj, Index);
}
}
WM_UNLOCK();
}
}
/*********************************************************************
*
* _LISTBOX_Callback
*/
static void _LISTBOX_Callback(WM_MESSAGE*pMsg) {
LISTBOX_Handle hObj = pMsg->hWin;
LISTBOX_Obj* pObj = LISTBOX_H2P(hObj);
WM_SCROLL_STATE ScrollState;
/* Let widget handle the standard messages */
if (WIDGET_HandleActive(hObj, pMsg) == 0) {
/* Owner needs to be informed about focus change */
if (pMsg->MsgId == WM_SET_FOCUS) {
if (pMsg->Data.v == 0) { /* Lost focus ? */
_NotifyOwner(hObj, LISTBOX_NOTIFICATION_LOST_FOCUS);
}
}
return;
}
switch (pMsg->MsgId) {
case WM_NOTIFY_PARENT:
switch (pMsg->Data.v) {
case WM_NOTIFICATION_VALUE_CHANGED:
if (pMsg->hWinSrc == WM_GetScrollbarV(hObj)) {
WM_GetScrollState(pMsg->hWinSrc, &ScrollState);
pObj->ScrollStateV.v = ScrollState.v;
LISTBOX__InvalidateInsideArea(hObj);
_NotifyOwner(hObj, WM_NOTIFICATION_SCROLL_CHANGED);
} else if (pMsg->hWinSrc == WM_GetScrollbarH(hObj)) {
WM_GetScrollState(pMsg->hWinSrc, &ScrollState);
pObj->ScrollStateH.v = ScrollState.v;
LISTBOX__InvalidateInsideArea(hObj);
_NotifyOwner(hObj, WM_NOTIFICATION_SCROLL_CHANGED);
}
break;
case WM_NOTIFICATION_SCROLLBAR_ADDED:
LISTBOX_UpdateScrollers(hObj);
break;
}
break;
case WM_PAINT:
_OnPaint(hObj, pObj, pMsg);
break;
case WM_PID_STATE_CHANGED:
{
const WM_PID_STATE_CHANGED_INFO* pInfo = (const WM_PID_STATE_CHANGED_INFO*)pMsg->Data.p;
if (pInfo->State) {
int Sel;
Sel = _GetItemFromPos(hObj, pObj, pInfo->x, pInfo->y);
if (Sel >= 0) {
_ToggleMultiSel(hObj, pObj, Sel);
LISTBOX_SetSel(hObj, Sel);
}
_NotifyOwner(hObj, WM_NOTIFICATION_CLICKED);
return;
}
}
break;
case WM_TOUCH:
_OnTouch(hObj, pMsg);
return;
#if GUI_SUPPORT_MOUSE
case WM_MOUSEOVER:
if (_OnMouseOver(hObj, pObj, pMsg) == 0)
return;
break;
#endif
case WM_DELETE:
_FreeAttached(pObj);
break; /* No return here ... WM_DefaultProc needs to be called */
case WM_KEY:
if (((const WM_KEY_INFO*)(pMsg->Data.p))->PressedCnt > 0) {
int Key;
Key = ((const WM_KEY_INFO*)(pMsg->Data.p))->Key;
if (LISTBOX_AddKey(hObj, Key)) {
return;
}
}
break;
case WM_SIZE:
LISTBOX_UpdateScrollers(hObj);
WM_InvalidateWindow(hObj);
break;
}
WM_DefaultProc(pMsg);
}
