125 lines
3.3 KiB
C++
125 lines
3.3 KiB
C++
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1999 - 1999
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//
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// File: ccomboex.cpp
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//
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//--------------------------------------------------------------------------
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// CComboex.cpp
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#include "stdafx.h"
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#include "ccomboex.h"
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BOOL CComboBoxEx2::FindItem(COMBOBOXEXITEM* pComboItem, int nStart)
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{
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ASSERT(pComboItem != NULL);
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ASSERT(nStart >= -1);
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// Only suport lparam search for now
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ASSERT(pComboItem->mask == CBEIF_LPARAM);
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int nItems = GetCount();
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COMBOBOXEXITEM ComboItem;
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ComboItem.mask = CBEIF_LPARAM;
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for (int iItem = nStart+1; iItem < nItems; iItem++)
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{
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ComboItem.iItem = iItem;
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BOOL bStat = GetItem(&ComboItem);
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ASSERT(bStat);
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if (ComboItem.lParam == pComboItem->lParam)
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return iItem;
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}
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return -1;
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}
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//+-------------------------------------------------------
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//
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// FindNextBranch(iItem)
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//
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// This function returns the index of the next item which
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// is not within the branch rooted at iItem. If no next
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// branch is found, the fucntion returns the item count.
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//+-------------------------------------------------------
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int CComboBoxEx2::FindNextBranch(int iItem)
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{
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int nItems = GetCount();
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ASSERT(iItem >= 0 && iItem < nItems);
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COMBOBOXEXITEM ComboItem;
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ComboItem.mask = CBEIF_INDENT;
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// Get indent of start item
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ComboItem.iItem = iItem;
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BOOL bStat = GetItem(&ComboItem);
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ASSERT(bStat);
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int iIndent = ComboItem.iIndent;
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// Locate next item with LE indent
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while (++iItem < nItems)
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{
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ComboItem.iItem = iItem;
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BOOL bStat = GetItem(&ComboItem);
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ASSERT(bStat);
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if (ComboItem.iIndent <= iIndent)
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return iItem;
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}
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return nItems;
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}
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//+------------------------------------------------------
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//
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// DeleteBranch
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//
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// This function deletes the item as the specified index
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// and all children of the item.
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//+------------------------------------------------------
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void CComboBoxEx2::DeleteBranch(int iItem)
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{
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int iNextBranch = FindNextBranch(iItem);
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for (int i=iItem; i< iNextBranch; i++)
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{
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DeleteItem(iItem);
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}
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}
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//+------------------------------------------------------
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//
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// FixUp
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//
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// This function is a workaround for two bugs in the NT4
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// version of comctl32.dll. First it turns off the
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// nointegralheight style of the inner combo box, which
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// the comboxex code forces on during creation. Next it
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// adjusts the size of the outer comboboxex wnd to be the
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// same size as the inner combobox wnd. Without this the
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// outer box cuts off the bottom of the inner box.
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//+------------------------------------------------------
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void CComboBoxEx2::FixUp()
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{
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ASSERT(::IsWindow(m_hWnd));
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HWND hWndCombo = GetComboControl();
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ASSERT(::IsWindow(hWndCombo));
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::SetWindowLong( hWndCombo, GWL_STYLE, ::GetWindowLong( hWndCombo, GWL_STYLE ) & ~CBS_NOINTEGRALHEIGHT );
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RECT rc;
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::GetWindowRect(hWndCombo,&rc);
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SetWindowPos(NULL, 0, 0, rc.right - rc.left, rc.bottom - rc.top, SWP_NOACTIVATE|SWP_NOMOVE|SWP_NOREPOSITION|SWP_NOZORDER);
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}
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