CComboBox* CPlayerListCtrl::ShowInPlaceComboBox(int nItem, int nCol, CAtlList<CString>& lstItems, int nSel, bool bShowDropDown)
{
CRect rect;
if (!PrepareInPlaceControl(nItem, nCol, rect)) {
return nullptr;
}
DWORD dwStyle = /*WS_BORDER|*/WS_CHILD | WS_VISIBLE | WS_VSCROLL /*|WS_HSCROLL*/
| CBS_DROPDOWNLIST | CBS_DISABLENOSCROLL/*|CBS_NOINTEGRALHEIGHT*/;
CComboBox* pComboBox = DEBUG_NEW CInPlaceComboBox(nItem, nCol, lstItems, nSel);
pComboBox->Create(dwStyle, rect, this, IDC_COMBO1);
CorrectComboListWidth(*pComboBox);
int width = GetColumnWidth(nCol);
if (pComboBox->GetDroppedWidth() < width) {
pComboBox->SetDroppedWidth(width);
}
if (bShowDropDown) {
pComboBox->ShowDropDown();
}
m_fInPlaceDirty = false;
return pComboBox;
}
void UpdateHorzExtent(CComboBox &rctlComboBox, int iIconWidth)
{
int iItemCount = rctlComboBox.GetCount();
if (iItemCount > 0)
{
CDC *pDC = rctlComboBox.GetDC();
if (pDC != NULL)
{
// *** To get *ACCURATE* results from 'GetOutputTextExtent' one *MUST*
// *** explicitly set the font!
CFont *pOldFont = pDC->SelectObject(rctlComboBox.GetFont());
CString strItem;
int iMaxWidth = 0;
for (int i = 0; i < iItemCount; i++)
{
rctlComboBox.GetLBText(i, strItem);
int iItemWidth = pDC->GetOutputTextExtent(strItem, strItem.GetLength()).cx;
if (iItemWidth > iMaxWidth)
iMaxWidth = iItemWidth;
}
pDC->SelectObject(pOldFont);
rctlComboBox.ReleaseDC(pDC);
// Depending on the string (lot of "M" or lot of "i") sometime the
// width is just a few pixels too small!
iMaxWidth += 4;
if (iIconWidth)
iMaxWidth += 2 + iIconWidth + 2;
rctlComboBox.SetHorizontalExtent(iMaxWidth);
if (rctlComboBox.GetDroppedWidth() < iMaxWidth)
rctlComboBox.SetDroppedWidth(iMaxWidth);
}
}
else
rctlComboBox.SetHorizontalExtent(0);
}
/************************************
* 设备初始化
*************************************/
bool CCommon::InitialDevice(CComboBox &m_cbDevice, LONG * width, LONG * height)
{
LONG w = 0, h = 0;
bool m_bCameraOpen = false;
int cam_count = GetCameraCount();//仅仅获取摄像头数目
m_cbDevice.SetDroppedWidth(cam_count);
//获取所有摄像头的名称
for(int i=0; i < cam_count; i++)
{
char camera_name[1024];
int retval = GetCameraName(i, camera_name, sizeof(camera_name));
if(retval >0)
{
CString str,str_camera_name;
str_camera_name = CCommon::Char2CString(camera_name);
//防止摄像头名称太长，超出显示区域
int spaceNum = str_camera_name.Find(" ");
CString strTemp = str_camera_name.Mid(0,spaceNum);
str.Format("[%d] %s",i,strTemp);
m_cbDevice.InsertString(i,str.GetBuffer(0));
}
}
if(cam_count > 0)
{
CString camera = CCommon::GetReg("Camera");
int m_iCameraIndex = atoi(CCommon::CString2Char(camera));//注册表获取摄像头id
if(m_iCameraIndex < 0 || m_iCameraIndex > cam_count - 1) m_iCameraIndex = 0;
m_cbDevice.SetCurSel(m_iCameraIndex);//设置默认选中第一个摄像头，现在从配置文件读取
//打开第一个摄像头
if(OpenCameraCB(m_iCameraIndex, false, &w,&h)) //不弹出属性选择窗口，用代码制定图像宽和高
{
m_bCameraOpen = TRUE;
}
if(m_bCameraOpen == false)
{
for(int k = 0; k < cam_count; k++)
{
//打开第一个摄像头
if(OpenCameraCB(k, false, &w, &h)) //不弹出属性选择窗口，用代码制定图像宽和高
{
m_bCameraOpen = TRUE;
break;
}
}
if(m_bCameraOpen == false && cam_count> 0)
{
//AfxMessageBox("摄像头初始化失败", MB_OK, MB_ICONINFORMATION);
//OnOK();
*width = w;
*width = h;
return false;
}
}
}
*width = w;
*height = h;
return true;
}
