static void D4D_CnslUpdateScrollbars(D4D_OBJECT* pThis)
{
D4D_CNSL_DATA* pData = D4D_GET_CONSOLE_DATA(pThis);
if(!(D4D_GET_LIST_BOX_SCROLL_BAR_HOR(pThis)->pData->flags & D4D_OBJECT_F_VISIBLE) && !(D4D_GET_LIST_BOX_SCROLL_BAR_VER(pThis)->pData->flags & D4D_OBJECT_F_VISIBLE))
return;
D4D_CnslValue2Coor(pThis);
if(D4D_GET_LIST_BOX_SCROLL_BAR_HOR(pThis)->pData->flags & D4D_OBJECT_F_VISIBLE)
{
if(pData->cursorPos.x < _calc.charArrSize.cx)
D4D_ScrlBrSetPosition(D4D_GET_LIST_BOX_SCROLL_BAR_HOR(pThis), 0);
else
D4D_ScrlBrSetPosition(D4D_GET_LIST_BOX_SCROLL_BAR_HOR(pThis), (D4D_INDEX)(pData->cursorPos.x - _calc.charArrSize.cx / 2));
}
if(D4D_GET_LIST_BOX_SCROLL_BAR_VER(pThis)->pData->flags & D4D_OBJECT_F_VISIBLE)
{
if(pData->cursorPos.y < _calc.charArrSize.cy)
D4D_ScrlBrSetPosition(D4D_GET_LIST_BOX_SCROLL_BAR_VER(pThis), 0);
else
D4D_ScrlBrSetPosition(D4D_GET_LIST_BOX_SCROLL_BAR_VER(pThis), (D4D_INDEX)(pData->cursorPos.y - _calc.charArrSize.cy + 1));
}
}
/**************************************************************************/ /*!
* @brief The function move the scroll bars on to new position if it's applicable
* @param pObj - pointer to the console object
* @param hor - new position of horizontal scroll bar
* @param ver - new position of vertical scroll bar
* @return none
* @note none
*******************************************************************************/
void D4D_CnslSetScrollBarPosition(D4D_OBJECT_PTR pObj, D4D_INDEX hor, D4D_INDEX ver)
{
if(pObj == NULL)
return;
if(D4D_GET_LIST_BOX_SCROLL_BAR_HOR(pObj)->pData->flags & D4D_OBJECT_F_VISIBLE)
D4D_ScrlBrSetPosition(D4D_GET_LIST_BOX_SCROLL_BAR_HOR(pObj), hor);
if(D4D_GET_LIST_BOX_SCROLL_BAR_VER(pObj)->pData->flags & D4D_OBJECT_F_VISIBLE)
D4D_ScrlBrSetPosition(D4D_GET_LIST_BOX_SCROLL_BAR_VER(pObj), ver);
}
/*******************************************************
*
* MENU object focus previous item routine
*
*******************************************************/
static void D4D_MenuFocusPreviousItem(D4D_OBJECT* pThis)
{
D4D_MENU* pMenu = D4D_GET_MENU(pThis);
// Compute all tempoarary values
D4D_MenuValue2Coor(pThis);
pMenu->pData->ix--;
if(_calc.itemsCnt >= _calc.posCnt)
{
if(pMenu->pData->ix < 0)
{
pMenu->pData->ix = (D4D_MENU_INDEX)(_calc.itemsCnt - 1);
pMenu->pData->page_ix = (D4D_MENU_INDEX)(_calc.itemsCnt - _calc.posCnt);
}else if(pMenu->pData->ix - pMenu->pData->page_ix < 0)
{
pMenu->pData->page_ix--;
}
D4D_ScrlBrSetPosition(D4D_GET_MENU_SCROLL_BAR_HOR(pThis), pMenu->pData->page_ix);
} else
{
if(pMenu->pData->ix < 0)
{
pMenu->pData->ix = (D4D_MENU_INDEX)(_calc.itemsCnt - 1);
}
}
}
/*******************************************************
*
* MENU object focus next item routine
*
*******************************************************/
static void D4D_MenuFocusNextItem(D4D_OBJECT* pThis)
{
D4D_MENU* pMenu = D4D_GET_MENU(pThis);
// Compute all tempoarary values
D4D_MenuValue2Coor(pThis);
pMenu->pData->ix++;
if(_calc.itemsCnt >= _calc.posCnt)
{
if(pMenu->pData->ix >= _calc.itemsCnt)
{
pMenu->pData->ix = 0;
pMenu->pData->page_ix = 0;
}else if(pMenu->pData->ix - pMenu->pData->page_ix > (_calc.posCnt - 1))
{
pMenu->pData->page_ix++;
}
D4D_ScrlBrSetPosition(D4D_GET_MENU_SCROLL_BAR_HOR(pThis), pMenu->pData->page_ix);
} else
{
if(pMenu->pData->ix >= _calc.itemsCnt)
{
pMenu->pData->ix = 0;
}
}
}
/**************************************************************************/ /*!
* @brief The function change the scroll bar position
* @param pObj - pointer to the scroll_bar object
* @param change - change of scroll bar position
* @return none
* @note none
*******************************************************************************/
void D4D_ScrlBrChangePosition(D4D_OBJECT_PTR pObj, D4D_INDEX_DELTA change)
{
D4D_SCROLL_BAR* pScrlBr = D4D_GET_SCROLL_BAR(pObj);
D4D_SCRLBAR_DATA* pData = pScrlBr->pData;
D4D_INDEX_DELTA tmp_pos = (D4D_INDEX_DELTA)(change + pData->position);
if(tmp_pos < 0)
tmp_pos = 0;
D4D_ScrlBrSetPosition(pObj, (D4D_INDEX)tmp_pos);
}
/**************************************************************************/ /*!
* @brief Function select new item by index
* @param pThis - pointer to the menu object
* @param ix - index of item that should be selected
* @return none
* @note none
*******************************************************************************/
void D4D_MenuSetIndex(D4D_OBJECT* pThis, D4D_MENU_INDEX ix)
{
D4D_MENU* pMenu = D4D_GET_MENU(pThis);
if(pThis == NULL)
return;
if(ix > D4D_GetItemsCount(pMenu))
ix = D4D_GetItemsCount(pMenu);
pMenu->pData->ix = ix;
pMenu->pData->page_ix = ix;
D4D_ScrlBrSetPosition(D4D_GET_MENU_SCROLL_BAR_HOR(pThis), pMenu->pData->page_ix);
}
static D4D_BOOL D4D_TextBoxScrollBarSetup(D4D_OBJECT* pObject)
{
// Try to check if the Text Box needs scroll Bar
// Switch off possible scroll bar in refresh case
D4D_GET_TEXTBOX_SCROLL_BAR_HOR(pObject)->pData->flags &= ~D4D_OBJECT_F_VISIBLE;
D4D_TextBoxValue2Coor(pObject);
if(D4D_TextBoxGetLineCount(pObject) > _calc.lineCount)
{
D4D_GET_TEXTBOX_SCROLL_BAR_HOR(pObject)->pData->flags |= D4D_OBJECT_F_VISIBLE;
D4D_TextBoxValue2Coor(pObject);
D4D_ScrlBrSetRange(D4D_GET_TEXTBOX_SCROLL_BAR_HOR(pObject), 0, D4D_TextBoxGetLineCount(pObject));
D4D_ScrlBrSetStep(D4D_GET_TEXTBOX_SCROLL_BAR_HOR(pObject), _calc.lineCount, D4D_TXTBX_SCRLBR_STEP);
D4D_ScrlBrSetPosition(D4D_GET_TEXTBOX_SCROLL_BAR_HOR(pObject), 0);
return D4D_TRUE;
}
return D4D_FALSE;
}
static D4D_BOOL D4D_MenuScrollBarSetup(D4D_OBJECT* pObject)
{
// Try to check if the Menu needs scroll Bar
D4D_MenuValue2Coor(pObject);
// Switch off possible scroll bar in refresh case
D4D_GET_MENU_SCROLL_BAR_HOR(pObject)->pData->flags &= ~D4D_OBJECT_F_VISIBLE;
if((_calc.posCnt < _calc.itemsCnt) || (pObject->initFlags & D4D_MENU_F_SIDEBAR))
{
D4D_OBJECT* pScrlBr;
pScrlBr = D4D_GET_MENU_SCROLL_BAR_HOR(pObject);
pScrlBr->pData->flags |= D4D_OBJECT_F_VISIBLE;
// Init child objects coordinations
pScrlBr->position.x = (D4D_COOR)(_calc.contentGeom.pnt.x + _calc.contentGeom.sz.cx - D4D_MENU_SCRLBR_WIDTH);
pScrlBr->position.y = (D4D_COOR)(_calc.contentGeom.pnt.y + _calc.titleBar_y + 1);
pScrlBr->position = D4D_GetScreenToClientPoint( pScrlBr, &pScrlBr->position);
pScrlBr->size.cx = D4D_MENU_SCRLBR_WIDTH;
pScrlBr->size.cy = (D4D_COOR)(_calc.contentGeom.sz.cy - _calc.titleBar_y - 1);
pScrlBr->radius = D4D_LimitU(pObject->radius, 0, D4D_MENU_SCRLBR_WIDTH / 2);
if(_calc.itemsCnt < _calc.posCnt)
D4D_ScrlBrSetRange(pScrlBr, 0, _calc.posCnt);
else
D4D_ScrlBrSetRange(pScrlBr, 0, _calc.itemsCnt);
D4D_ScrlBrSetStep(pScrlBr, _calc.posCnt, D4D_MENU_SCRLBR_STEP);
D4D_ScrlBrSetPosition(pScrlBr, 0);
return D4D_TRUE;
}
return D4D_FALSE;
}
