/*********************************************************************
*
* LISTBOX_SetItemDisabled
*/
void LISTBOX_SetItemDisabled(LISTBOX_Handle hObj, unsigned Index, int OnOff) {
if (hObj) {
unsigned NumItems;
LISTBOX_Obj* pObj;
WM_LOCK();
pObj = LISTBOX_H2P(hObj);
NumItems = LISTBOX__GetNumItems(pObj);
if (Index < NumItems) {
WM_HMEM hItem = GUI_ARRAY_GethItem(&pObj->ItemArray, Index);
if (hItem) {
LISTBOX_ITEM * pItem = (LISTBOX_ITEM *)GUI_ALLOC_h2p(hItem);
if (OnOff) {
if (!(pItem->Status & LISTBOX_ITEM_DISABLED)) {
pItem->Status |= LISTBOX_ITEM_DISABLED;
LISTBOX__InvalidateItem(hObj, pObj, Index);
}
} else {
if (pItem->Status & LISTBOX_ITEM_DISABLED) {
pItem->Status &= ~LISTBOX_ITEM_DISABLED;
LISTBOX__InvalidateItem(hObj, pObj, Index);
}
}
}
}
WM_UNLOCK();
}
}
/*********************************************************************
*
* _ToggleMultiSel
*/
static void _ToggleMultiSel(LISTBOX_Handle hObj, LISTBOX_Obj* pObj, int Sel) {
if (pObj->Flags & LISTBOX_SF_MULTISEL) {
WM_HMEM hItem = GUI_ARRAY_GethItem(&pObj->ItemArray, Sel);
if (hItem) {
LISTBOX_ITEM * pItem = (LISTBOX_ITEM *)GUI_ALLOC_h2p(hItem);
if (!(pItem->Status & LISTBOX_ITEM_DISABLED)) {
pItem->Status ^= LISTBOX_ITEM_SELECTED;
_NotifyOwner(hObj, WM_NOTIFICATION_SEL_CHANGED);
LISTBOX__InvalidateItem(hObj, pObj, Sel);
}
}
}
}
/*********************************************************************
*
* LISTBOX_GetItemDisabled
*/
int LISTBOX_GetItemDisabled(LISTBOX_Handle hObj, unsigned Index) {
int Ret = 0;
if (hObj) {
unsigned NumItems;
LISTBOX_Obj* pObj;
WM_LOCK();
pObj = LISTBOX_H2P(hObj);
NumItems = LISTBOX__GetNumItems(pObj);
if (Index < NumItems) {
WM_HMEM hItem = GUI_ARRAY_GethItem(&pObj->ItemArray, Index);
if (hItem) {
LISTBOX_ITEM * pItem = (LISTBOX_ITEM *)GUI_ALLOC_h2p(hItem);
if (pItem->Status & LISTBOX_ITEM_DISABLED) {
Ret = 1;
}
}
}
WM_UNLOCK();
}
return Ret;
}
/*********************************************************************
*
* LISTBOX_GetItemSel
*/
int LISTBOX_GetItemSel(LISTBOX_Handle hObj, unsigned Index) {
int Ret = 0;
if (hObj) {
unsigned NumItems;
LISTBOX_Obj* pObj;
WM_LOCK();
pObj = LISTBOX_H2P(hObj);
NumItems = LISTBOX__GetNumItems(pObj);
if ((Index < NumItems) && (pObj->Flags & LISTBOX_SF_MULTISEL)) {
WM_HMEM hItem = GUI_ARRAY_GethItem(&pObj->ItemArray, Index);
if (hItem) {
LISTBOX_ITEM * pItem = (LISTBOX_ITEM *)GUI_ALLOC_h2p(hItem);
if (pItem->Status & LISTBOX_ITEM_SELECTED) {
Ret = 1;
}
}
}
WM_UNLOCK();
}
return Ret;
}
/*********************************************************************
*
* LISTBOX_SetSel
*/
void LISTBOX_SetSel (LISTBOX_Handle hObj, int NewSel) {
if (hObj) {
LISTBOX_Obj* pObj;
int MaxSel;
WM_LOCK();
pObj = LISTBOX_H2P(hObj);
MaxSel = LISTBOX__GetNumItems(pObj);
MaxSel = MaxSel ? MaxSel - 1 : 0;
if (NewSel > MaxSel) {
NewSel = MaxSel;
}
if (NewSel < 0) {
NewSel = -1;
} else {
WM_HMEM hItem = GUI_ARRAY_GethItem(&pObj->ItemArray, NewSel);
if (hItem) {
LISTBOX_ITEM* pItem = (LISTBOX_ITEM*)GUI_ALLOC_h2p(hItem);
if (pItem->Status & LISTBOX_ITEM_DISABLED) {
NewSel = -1;
}
}
}
if (NewSel != pObj->Sel) {
int OldSel;
OldSel = pObj->Sel;
pObj->Sel = NewSel;
if (_UpdateScrollPos(hObj, pObj)) {
LISTBOX__InvalidateInsideArea(hObj);
} else {
LISTBOX__InvalidateItem(hObj, pObj, OldSel);
LISTBOX__InvalidateItem(hObj, pObj, NewSel);
}
_NotifyOwner(hObj, WM_NOTIFICATION_SEL_CHANGED);
}
WM_UNLOCK();
}
}
/*********************************************************************
*
* _MoveSel
*
* Moves the selection/focus to the next valid item
*/
static void _MoveSel(LISTBOX_Handle hObj, int Dir) {
int Index, NewSel = -1, NumItems;
LISTBOX_Obj * pObj;
pObj = LISTBOX_H2P(hObj);
Index = LISTBOX_GetSel(hObj);
NumItems = LISTBOX__GetNumItems(pObj);
do {
WM_HMEM hItem;
Index += Dir;
if ((Index < 0) || (Index >= NumItems)) {
break;
}
hItem = GUI_ARRAY_GethItem(&pObj->ItemArray, Index);
if (hItem) {
LISTBOX_ITEM * pItem = (LISTBOX_ITEM *)GUI_ALLOC_h2p(hItem);
if (!(pItem->Status & LISTBOX_ITEM_DISABLED)) {
NewSel = Index;
}
}
} while(NewSel < 0);
if (NewSel >= 0) {
LISTBOX_SetSel(hObj, NewSel);
}
}
/*********************************************************************
*
* _GethItem
Returns:
Handle of the specified item
*/
static WM_HMEM _GethItem(DROPDOWN_Obj* pObj, int Index) {
return GUI_ARRAY_GethItem(&pObj->Handles, Index);
}
/*********************************************************************
*
* LISTBOX_OwnerDraw
*/
int LISTBOX_OwnerDraw(const WIDGET_ITEM_DRAW_INFO* pDrawItemInfo) {
switch (pDrawItemInfo->Cmd) {
case WIDGET_ITEM_GET_XSIZE: {
LISTBOX_Obj* pObj;
const GUI_FONT GUI_UNI_PTR* pOldFont;
const char* s;
int DistX;
pObj = LISTBOX_H2P(pDrawItemInfo->hWin);
pOldFont = GUI_SetFont(pObj->Props.pFont);
s = LISTBOX__GetpString(pObj, pDrawItemInfo->ItemIndex);
DistX = GUI_GetStringDistX(s);
GUI_SetFont(pOldFont);
return DistX;
}
case WIDGET_ITEM_GET_YSIZE: {
LISTBOX_Obj* pObj;
pObj = LISTBOX_H2P(pDrawItemInfo->hWin);
return GUI_GetYDistOfFont(pObj->Props.pFont) + pObj->ItemSpacing;
}
case WIDGET_ITEM_DRAW: {
LISTBOX_Obj* pObj;
LISTBOX_ITEM* pItem;
WM_HMEM hItem;
GUI_RECT r;
int FontDistY;
int ItemIndex = pDrawItemInfo->ItemIndex;
const char* s;
int ColorIndex;
char IsDisabled;
char IsSelected;
pObj = LISTBOX_H2P(pDrawItemInfo->hWin);
hItem = GUI_ARRAY_GethItem(&pObj->ItemArray, ItemIndex);
pItem = (LISTBOX_ITEM *)GUI_ALLOC_h2p(hItem);
WM_GetInsideRect(&r);
FontDistY = GUI_GetFontDistY();
/* Calculate color index */
IsDisabled = (pItem->Status & LISTBOX_ITEM_DISABLED) ? 1 : 0;
IsSelected = (pItem->Status & LISTBOX_ITEM_SELECTED) ? 1 : 0;
if (pObj->Flags & LISTBOX_SF_MULTISEL) {
if (IsDisabled) {
ColorIndex = 3;
} else {
ColorIndex = (IsSelected) ? 2 : 0;
}
} else {
if (IsDisabled) {
ColorIndex = 3;
} else {
if (ItemIndex == pObj->Sel) {
ColorIndex = (pObj->Widget.State & WIDGET_STATE_FOCUS) ? 2 : 1;
} else {
ColorIndex = 0;
}
}
}
/* Display item */
LCD_SetBkColor(pObj->Props.aBackColor[ColorIndex]);
LCD_SetColor (pObj->Props.aTextColor[ColorIndex]);
s = LISTBOX__GetpString(pObj, ItemIndex);
GUI_SetTextMode(GUI_TM_TRANS);
GUI_Clear();
GUI_DispStringAt(s, pDrawItemInfo->x0 + 1, pDrawItemInfo->y0);
/* Display focus rectangle */
if ((pObj->Flags & LISTBOX_SF_MULTISEL) && (ItemIndex == pObj->Sel)) {
GUI_RECT rFocus;
rFocus.x0 = pDrawItemInfo->x0;
rFocus.y0 = pDrawItemInfo->y0;
rFocus.x1 = r.x1;
rFocus.y1 = pDrawItemInfo->y0 + FontDistY - 1;
LCD_SetColor(GUI_WHITE - pObj->Props.aBackColor[ColorIndex]);
GUI_DrawFocusRect(&rFocus, 0);
}
return 0;
}
}
return 0;
}
