/*********************************************************************
*
* DROPDOWN_InsertString
*/
void DROPDOWN_InsertString(DROPDOWN_Handle hObj, const char * s, unsigned int Index) {
if (hObj && s) {
DROPDOWN_Obj* pObj;
unsigned int NumItems;
WM_LOCK();
pObj = DROPDOWN_H2P(hObj);
NumItems = DROPDOWN_GetNumItems(hObj);
if (Index < NumItems) {
WM_HMEM hItem;
hItem = GUI_ARRAY_InsertItem(&pObj->Handles, Index, strlen(s) + 1);
if (hItem) {
char * pBuffer = (char *)GUI_ALLOC_h2p(hItem);
strcpy(pBuffer, s);
}
WM_InvalidateWindow(hObj);
if (pObj->hListWin) {
LISTBOX_InsertString(pObj->hListWin, s, Index);
}
} else {
DROPDOWN_AddString(hObj, s);
if (pObj->hListWin) {
LISTBOX_AddString(pObj->hListWin, s);
}
}
WM_UNLOCK();
}
}
/*********************************************************************
*
* _DROPDOWN_Callback
*/
static void _DROPDOWN_Callback (WM_MESSAGE*pMsg) {
DROPDOWN_Handle hObj = pMsg->hWin;
DROPDOWN_Obj* pObj = DROPDOWN_H2P(hObj);
char IsExpandedBeforeMsg;
IsExpandedBeforeMsg = pObj->hListWin ? 1 : 0;
/* Let widget handle the standard messages */
if (WIDGET_HandleActive(hObj, pMsg) == 0) {
return;
}
switch (pMsg->MsgId) {
case WM_NOTIFY_PARENT:
switch (pMsg->Data.v) {
case WM_NOTIFICATION_SCROLL_CHANGED:
WM_NotifyParent(hObj, WM_NOTIFICATION_SCROLL_CHANGED);
break;
case WM_NOTIFICATION_CLICKED:
DROPDOWN_SetSel(hObj, LISTBOX_GetSel(pObj->hListWin));
WM_SetFocus(hObj);
break;
case LISTBOX_NOTIFICATION_LOST_FOCUS:
DROPDOWN_Collapse(hObj);
break;
}
break;
case WM_PID_STATE_CHANGED:
if (IsExpandedBeforeMsg == 0) { /* Make sure we do not react a second time */
const WM_PID_STATE_CHANGED_INFO * pInfo = (const WM_PID_STATE_CHANGED_INFO*)pMsg->Data.p;
if (pInfo->State) {
DROPDOWN_Expand(hObj);
}
}
break;
case WM_TOUCH:
if (_OnTouch(hObj, pMsg) == 0) {
return;
}
break;
case WM_PAINT:
_Paint(hObj);
break;
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 = ((const WM_KEY_INFO*)(pMsg->Data.p))->Key;
switch (Key) {
case GUI_KEY_TAB:
break; /* Send to parent by not doing anything */
default:
DROPDOWN_AddKey(hObj, Key);
return;
}
}
break;
}
WM_DefaultProc(pMsg);
}
/*********************************************************************
*
* DROPDOWN_AddString
*/
void DROPDOWN_AddString(DROPDOWN_Handle hObj, const char* s) {
DROPDOWN_Obj* pObj;
if (hObj && s) {
WM_LOCK();
pObj = DROPDOWN_H2P(hObj);
GUI_ARRAY_AddItem(&pObj->Handles, s, strlen(s) + 1);
DROPDOWN_Invalidate(hObj);
WM_UNLOCK();
}
}
int DROPDOWN_GetSel (DROPDOWN_Handle hObj) {
int r = 0;
DROPDOWN_Obj* pObj;
if (hObj) {
WM_LOCK();
pObj = DROPDOWN_H2P(hObj);
ASSERT_IS_VALID_PTR(pObj);
r = pObj->Sel;
WM_UNLOCK();
}
return r;
}
/*********************************************************************
*
* DROPDOWN_GetNumItems
*/
int DROPDOWN_GetNumItems(DROPDOWN_Handle hObj) {
DROPDOWN_Obj* pObj;
int r = 0;
if (hObj) {
WM_LOCK();
pObj = DROPDOWN_H2P(hObj);
ASSERT_IS_VALID_PTR(pObj);
r = _GetNumItems(pObj);
WM_UNLOCK();
}
return r;
}
/*********************************************************************
*
* DROPDOWN_Collapse
*/
void DROPDOWN_Collapse(DROPDOWN_Handle hObj) {
DROPDOWN_Obj* pObj;
if (hObj) {
WM_LOCK();
pObj = DROPDOWN_H2P(hObj);
if (pObj->hListWin) {
WM_DeleteWindow(pObj->hListWin);
pObj->hListWin = 0;
}
WM_UNLOCK();
}
}
/*********************************************************************
*
* _SelectByKey
*/
static void _SelectByKey(DROPDOWN_Handle hObj, int Key) {
int i;
DROPDOWN_Obj* pObj;
pObj = DROPDOWN_H2P(hObj);
Key = _Tolower(Key);
for (i = 0; i < _GetNumItems(pObj); i++) {
char c = _Tolower(*_GetpItem(pObj, i));
if (c == Key) {
DROPDOWN_SetSel(hObj, i);
break;
}
}
}
/*********************************************************************
*
* DROPDOWN_Expand
*/
void DROPDOWN_Expand(DROPDOWN_Handle hObj) {
int xSize, ySize, i, NumItems;
WM_HWIN hLst;
GUI_RECT r;
WM_HWIN hParent;
WM_Obj* pParent;
DROPDOWN_Obj* pObj;
if (hObj) {
WM_LOCK();
pObj = DROPDOWN_H2P(hObj);
if (pObj->hListWin == 0) {
hParent = WM_GetParent(hObj);
pParent = WM_H2P(hParent);
xSize = WM__GetWindowSizeX(&pObj->Widget.Win);
ySize = pObj->ySizeEx;
NumItems = _GetNumItems(pObj);
/* Get coordinates of window in client coordiantes of parent */
r = pObj->Widget.Win.Rect;
GUI_MoveRect(&r, -pParent->Rect.x0, -pParent->Rect.y0);
if (pObj->Flags & DROPDOWN_CF_UP) {
r.y0 -= ySize;
} else {
r.y0 = r.y1;
}
hLst = LISTBOX_CreateAsChild(NULL, WM_GetParent(hObj), r.x0, r.y0
, xSize, ySize, WM_CF_SHOW);
if (pObj->Flags & DROPDOWN_SF_AUTOSCROLLBAR) {
LISTBOX_SetScrollbarWidth(hLst, pObj->ScrollbarWidth);
LISTBOX_SetAutoScrollV(hLst, 1);
}
for (i = 0; i< NumItems; i++) {
LISTBOX_AddString(hLst, _GetpItem(pObj, i));
}
for (i = 0; i < GUI_COUNTOF(pObj->Props.aBackColor); i++) {
LISTBOX_SetBkColor(hLst, i, pObj->Props.aBackColor[i]);
}
for (i = 0; i < GUI_COUNTOF(pObj->Props.aTextColor); i++) {
LISTBOX_SetTextColor(hLst, i, pObj->Props.aTextColor[i]);
}
LISTBOX_SetItemSpacing(hLst, pObj->ItemSpacing);
LISTBOX_SetFont(hLst, pObj->Props.pFont);
WM_SetFocus(hLst);
pObj->hListWin = hLst;
LISTBOX_SetOwner(hLst, hObj);
LISTBOX_SetSel(hLst, pObj->Sel);
WM_NotifyParent(hObj, WM_NOTIFICATION_CLICKED);
}
WM_UNLOCK();
}
}
/*********************************************************************
*
* DROPDOWN_SetColor
*/
void DROPDOWN_SetColor(DROPDOWN_Handle hObj, unsigned int Index, GUI_COLOR Color) {
DROPDOWN_Obj * pObj;
if (hObj) {
if (Index < GUI_COUNTOF(pObj->Props.aColor)) {
WM_LOCK();
pObj = DROPDOWN_H2P(hObj);
if (pObj->Props.aColor[Index] != Color) {
pObj->Props.aColor[Index] = Color;
DROPDOWN_Invalidate(hObj);
}
WM_UNLOCK();
}
}
}
/*********************************************************************
*
* DROPDOWN_SetScrollbarWidth
*/
void DROPDOWN_SetScrollbarWidth(DROPDOWN_Handle hObj, unsigned Width) {
DROPDOWN_Obj* pObj;
if (hObj) {
WM_LOCK();
pObj = DROPDOWN_H2P(hObj);
if (Width != (unsigned)pObj->ScrollbarWidth) {
pObj->ScrollbarWidth = Width;
if (pObj->hListWin) {
LISTBOX_SetScrollbarWidth(pObj->hListWin, Width);
}
}
WM_UNLOCK();
}
}
/*********************************************************************
*
* DROPDOWN_SetTextColor
*/
void DROPDOWN_SetTextColor(DROPDOWN_Handle hObj, unsigned int Index, GUI_COLOR color) {
DROPDOWN_Obj* pObj;
if (hObj) {
if (Index < GUI_COUNTOF(pObj->Props.aBackColor)) {
WM_LOCK();
pObj = DROPDOWN_H2P(hObj);
ASSERT_IS_VALID_PTR(pObj);
pObj->Props.aTextColor[Index] = color;
DROPDOWN_Invalidate(hObj);
if (pObj->hListWin) {
LISTBOX_SetTextColor(pObj->hListWin, Index, color);
}
WM_UNLOCK();
}
}
}
/*********************************************************************
*
* DROPDOWN_DeleteItem
*/
void DROPDOWN_DeleteItem(DROPDOWN_Handle hObj, unsigned int Index) {
if (hObj) {
DROPDOWN_Obj * pObj;
unsigned int NumItems;
NumItems = DROPDOWN_GetNumItems(hObj);
if (Index < NumItems) {
WM_LOCK();
pObj = DROPDOWN_H2P(hObj);
GUI_ARRAY_DeleteItem(&pObj->Handles, Index);
WM_InvalidateWindow(hObj);
if (pObj->hListWin) {
LISTBOX_DeleteItem(pObj->hListWin, Index);
}
WM_UNLOCK();
}
}
}
/*********************************************************************
*
* DROPDOWN_SetAutoScroll
*/
void DROPDOWN_SetAutoScroll(DROPDOWN_Handle hObj, int OnOff) {
if (hObj) {
DROPDOWN_Obj* pObj;
char Flags;
WM_LOCK();
pObj = DROPDOWN_H2P(hObj);
Flags = pObj->Flags & (~DROPDOWN_SF_AUTOSCROLLBAR);
if (OnOff) {
Flags |= DROPDOWN_SF_AUTOSCROLLBAR;
}
if (pObj->Flags != Flags) {
pObj->Flags = Flags;
if (pObj->hListWin) {
LISTBOX_SetAutoScrollV(pObj->hListWin, (Flags & DROPDOWN_SF_AUTOSCROLLBAR) ? 1 : 0);
}
}
WM_UNLOCK();
}
}
/*********************************************************************
*
* DROPDOWN_SetSel
*/
void DROPDOWN_SetSel(DROPDOWN_Handle hObj, int Sel) {
int NumItems, MaxSel;
DROPDOWN_Obj* pObj;
if (hObj) {
WM_LOCK();
pObj = DROPDOWN_H2P(hObj);
ASSERT_IS_VALID_PTR(pObj);
NumItems = _GetNumItems(pObj);
MaxSel = NumItems ? NumItems-1 : 0;
if (Sel > MaxSel) {
Sel = MaxSel;
}
if (Sel != pObj->Sel) {
pObj->Sel = Sel;
DROPDOWN_Invalidate(hObj);
WM_NotifyParent(hObj, WM_NOTIFICATION_SEL_CHANGED);
}
WM_UNLOCK();
}
}
/*********************************************************************
*
* DROPDOWN_SetFont
*/
void DROPDOWN_SetFont(DROPDOWN_Handle hObj, const GUI_FONT GUI_UNI_PTR * pfont) {
int OldHeight;
DROPDOWN_Obj* pObj;
if (hObj) {
WM_LOCK();
pObj = DROPDOWN_H2P(hObj);
ASSERT_IS_VALID_PTR(pObj);
OldHeight = GUI_GetYDistOfFont(pObj->Props.pFont);
pObj->Props.pFont = pfont;
DROPDOWN__AdjustHeight(hObj, pObj);
DROPDOWN_Invalidate(hObj);
if (pObj->hListWin) {
if (OldHeight != GUI_GetYDistOfFont(pObj->Props.pFont)) {
DROPDOWN_Collapse(hObj);
DROPDOWN_Expand(hObj);
}
LISTBOX_SetFont(pObj->hListWin, pfont);
}
WM_UNLOCK();
}
}
/*********************************************************************
*
* _Paint
*/
static void _Paint(DROPDOWN_Handle hObj) {
int Border;
GUI_RECT r;
const char* s;
int InnerSize, ColorIndex;
DROPDOWN_Obj* pObj;
int TextBorderSize;
/* Do some initial calculations */
pObj = DROPDOWN_H2P(hObj);
Border = pObj->Widget.pEffect->EffectSize;
TextBorderSize = pObj->Props.TextBorderSize;
GUI_SetFont(pObj->Props.pFont);
ColorIndex = (pObj->Widget.State & WIDGET_STATE_FOCUS) ? 2 : 1;
s = _GetpItem(pObj, pObj->Sel);
WM_GetClientRect(&r);
GUI__ReduceRect(&r, &r, Border);
InnerSize = r.y1 - r.y0 + 1;
/* Draw the 3D effect (if configured) */
WIDGET__EFFECT_DrawDown(&pObj->Widget);
/* Draw the outer text frames */
r.x1 -= InnerSize; /* Spare square area to the right */
LCD_SetColor(pObj->Props.aBackColor[ColorIndex]);
/* Draw the text */
LCD_SetBkColor(pObj->Props.aBackColor[ColorIndex]);
GUI_FillRectEx(&r);
r.x0 += TextBorderSize;
r.x1 -= TextBorderSize;
LCD_SetColor (pObj->Props.aTextColor[ColorIndex]);
GUI_DispStringInRect(s, &r, pObj->Props.Align);/**/
/* Draw arrow */
WM_GetClientRect(&r);
GUI__ReduceRect(&r, &r, Border);
r.x0 = r.x1 + 1 - InnerSize;
LCD_SetColor(0xc0c0c0);
GUI_FillRectEx(&r);
LCD_SetColor(GUI_BLACK);
_DrawTriangleDown((r.x1 + r.x0) / 2, r.y0 + 5, (r.y1 - r.y0 - 8) / 2);
WIDGET__EFFECT_DrawUpRect(&pObj->Widget, &r);
}
/*********************************************************************
*
* DROPDOWN_CreateEx
*/
DROPDOWN_Handle DROPDOWN_CreateEx(int x0, int y0, int xsize, int ysize, WM_HWIN hParent,
int WinFlags, int ExFlags, int Id)
{
DROPDOWN_Handle hObj;
hObj = WM_CreateWindowAsChild(x0, y0, xsize, -1, hParent, WinFlags, _DROPDOWN_Callback,
sizeof(DROPDOWN_Obj) - sizeof(WM_Obj));
if (hObj) {
DROPDOWN_Obj* pObj;
WM_LOCK();
pObj = DROPDOWN_H2P(hObj);
/* Init sub-classes */
GUI_ARRAY_CREATE(&pObj->Handles);
/* init widget specific variables */
WIDGET__Init(&pObj->Widget, Id, WIDGET_STATE_FOCUSSABLE);
pObj->Flags = ExFlags;
pObj->Props = DROPDOWN__DefaultProps;
pObj->ScrollbarWidth = 0;
INIT_ID(pObj);
pObj->ySizeEx = ysize;
DROPDOWN__AdjustHeight(hObj, pObj);
WM_UNLOCK();
}
return hObj;
}
