327 lines
7.3 KiB
C++
327 lines
7.3 KiB
C++
// PropTreeItemCombo.cpp : implementation file
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//
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// Copyright (C) 1998-2001 Scott Ramsay
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// sramsay@gonavi.com
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// http://www.gonavi.com
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//
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// This material is provided "as is", with absolutely no warranty expressed
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// or implied. Any use is at your own risk.
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//
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// Permission to use or copy this software for any purpose is hereby granted
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// without fee, provided the above notices are retained on all copies.
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// Permission to modify the code and to distribute modified code is granted,
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// provided the above notices are retained, and a notice that the code was
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// modified is included with the above copyright notice.
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//
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// If you use this code, drop me an email. I'd like to know if you find the code
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// useful.
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#include "stdafx.h"
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#include "Resource.h"
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#include "PropCtrl.h"
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#include "PropItemCombo.h"
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#ifdef _DEBUG
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#define new DEBUG_NEW
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#undef THIS_FILE
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static char THIS_FILE[] = __FILE__;
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#endif
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#define DROPDOWN_HEIGHT 150
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/////////////////////////////////////////////////////////////////////////////
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// CPropItemCombo
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CPropItemCombo::CPropItemCombo()
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{
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m_nDropHeight = DROPDOWN_HEIGHT,
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m_pText = NULL;
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m_pDouble = NULL;
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m_pInt = NULL;
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m_nItemType = ITEMTYPE_COMBOBOX;
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}
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CPropItemCombo::~CPropItemCombo()
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{
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}
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BEGIN_MESSAGE_MAP(CPropItemCombo, CComboBox)
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//{{AFX_MSG_MAP(CPropItemCombo)
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ON_CONTROL_REFLECT(CBN_SELCHANGE, OnSelchange)
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ON_CONTROL_REFLECT(CBN_EDITCHANGE, OnEditchange)
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ON_CONTROL_REFLECT(CBN_KILLFOCUS, OnKillfocus)
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ON_CONTROL_REFLECT(CBN_DROPDOWN, OnDropdown)
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// ON_BN_CLICKED(IDC_BUTTON, OnButtonClick)
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//}}AFX_MSG_MAP
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END_MESSAGE_MAP()
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/////////////////////////////////////////////////////////////////////////////
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// CPropItemCombo message handlers
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void CPropItemCombo::DrawAttribute(CDC* pDC, const RECT& rc)
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{
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ASSERT(m_pProp!=NULL);
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// verify the window has been created
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if (!IsWindow(m_hWnd))
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{
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TRACE0("CPropItemCombo::DrawAttribute() - The window has not been created\n");
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return;
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}
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// pDC->SelectObject(IsReadOnly() ? m_pProp->GetNormalFont() : m_pProp->GetBoldFont());
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pDC->SelectObject(m_pProp->GetNormalFont());
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if (IsReadOnly())
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pDC->SetTextColor(RGB(140,140,140));
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else
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pDC->SetTextColor(RGB(0,0,0));
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pDC->SetBkMode(TRANSPARENT);
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CRect r = rc;
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CString csText = GetValueText();
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pDC->DrawText(csText, r, DT_SINGLELINE|DT_VCENTER);
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}
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void CPropItemCombo::OnMove()
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{
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if (IsWindow(m_hWnd) && IsWindowVisible())
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SetWindowPos(NULL, m_rc.left, m_rc.top, m_rc.Width() + 1,
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m_rc.Height(), SWP_NOZORDER|SWP_SHOWWINDOW);
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}
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void CPropItemCombo::OnActivate()
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{
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// activate the combo box
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SetWindowPos(NULL, m_rc.left, m_rc.top, m_rc.Width(),
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m_rc.Height() + m_nDropHeight, SWP_NOZORDER|SWP_SHOWWINDOW);
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SetWindowText(GetValueText());
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if (!m_bEdit && GetCount())
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ShowDropDown(TRUE);
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// 原来有按钮的话先隐藏先隐藏
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ShowButton(FALSE);
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ShowSpinCtrl(FALSE);
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// add button on right
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if (m_bHasBt)
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CreateButton(this);
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if (m_bHasSpinCtrl)
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CreateSpinCtrl(this);
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SetFocus();
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}
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BOOL CPropItemCombo::CreateDropListComb(int* pInt)
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{
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DWORD dwStyle = WS_VISIBLE|WS_CHILD|WS_VSCROLL|CBS_DROPDOWNLIST;
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m_pInt = pInt;
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m_bEdit = FALSE;
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return CreateComb(dwStyle);
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}
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BOOL CPropItemCombo::CreateDropListComb(CString* pCString)
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{
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DWORD dwStyle = WS_VISIBLE|WS_CHILD|WS_VSCROLL|CBS_DROPDOWNLIST;
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m_pText = pCString;
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m_bEdit = FALSE;
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return CreateComb(dwStyle);
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}
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BOOL CPropItemCombo::CreateDropDownComb(CString* pCString)
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{
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DWORD dwStyle = WS_VISIBLE|WS_CHILD|WS_VSCROLL|CBS_DROPDOWN;
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m_pText = pCString;
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m_bEdit = TRUE;
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return CreateComb(dwStyle);
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}
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BOOL CPropItemCombo::CreateDropDownComb(double* pDouble)
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{
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DWORD dwStyle = WS_VISIBLE|WS_CHILD|WS_VSCROLL|CBS_DROPDOWN;
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m_pDouble = pDouble;
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m_bEdit = TRUE;
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return CreateComb(dwStyle);
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}
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BOOL CPropItemCombo::CreateComb(DWORD dwStyle)
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{
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ASSERT(m_pProp!=NULL);
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if (IsWindow(m_hWnd))
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DestroyWindow();
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// force as not visible child window
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dwStyle = (WS_CHILD|WS_VSCROLL|dwStyle) & ~WS_VISIBLE;
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if (!Create(dwStyle, CRect(0,0,0,0), m_pProp->GetCtrlParent(), GetCtrlID()))
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{
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TRACE0("CPropItemCombo::CreateComboBox() - failed to create combo box\n");
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return FALSE;
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}
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SendMessage(WM_SETFONT, (WPARAM)m_pProp->GetNormalFont()->m_hObject);
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return TRUE;
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}
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LONG CPropItemCombo::FindCBData(LPARAM lParam)
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{
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LONG idx;
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for (idx = 0; idx < GetCount(); idx++)
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{
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if (GetItemData(idx)==(DWORD)lParam)
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return idx;
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}
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return CB_ERR;
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}
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void CPropItemCombo::OnRefresh()
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{
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}
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void CPropItemCombo::OnCommit()
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{
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}
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void CPropItemCombo::OnSelchange()
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{
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CommitChanges();
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ShowWindow(SW_HIDE);
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CString csText;
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GetLBText(GetCurSel(), csText);
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if (NULL != m_pText)
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*m_pText = csText;
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else if (NULL != m_pDouble)
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*m_pDouble = _tstof(csText);
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else if (NULL != m_pInt)
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*m_pInt = GetCurSel();
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CWnd* pWnd = m_pProp->GetParent();
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if (NULL != pWnd)
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{
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::SendMessage(pWnd->m_hWnd, WM_SELECTCHANGED, (WPARAM)ITEMTYPE_COMBOBOX, (LPARAM)this);
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}
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}
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/*----------------------------------------------------------------------------*
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* 描述: 编辑修改事件，肯定是DropDown，没有int型，只取当前字符
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* 备注:
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-----------------------------------------------------------------------------*/
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void CPropItemCombo::OnEditchange()
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{
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CommitChanges();
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CString csText;
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GetWindowText(csText);
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if (NULL != m_pText)
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*m_pText = csText;
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else if (NULL != m_pDouble)
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*m_pDouble = _tstof(csText);
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}
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void CPropItemCombo::OnKillfocus()
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{
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CommitChanges();
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ShowWindow(SW_HIDE);
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}
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void CPropItemCombo::OnDropdown()
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{
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RecalcDropWidth();
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}
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void CPropItemCombo::SetDropDownHeight(LONG nDropHeight)
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{
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m_nDropHeight = nDropHeight;
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}
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LONG CPropItemCombo::GetDropDownHeight()
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{
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return m_nDropHeight;
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}
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/*----------------------------------------------------------------------------*
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* 描述: 得到要Draw画出显示的字符
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* 备注:
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-----------------------------------------------------------------------------*/
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CString CPropItemCombo::GetValueText()
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{
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CString csText;
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if (NULL != m_pText)
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csText = *m_pText;
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else if (NULL != m_pDouble)
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{
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csText.Format(_T("%.10f"), *m_pDouble);
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csText.TrimRight(_T("0"));
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csText.TrimRight(_T("."));
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}
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else if (NULL != m_pInt && *m_pInt > -1 && *m_pInt < GetCount())
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{
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GetLBText(*m_pInt, csText);
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}
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return csText;
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}
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/*----------------------------------------------------------------------------*
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* 描述: 切换到给定的字符串
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* 备注: 如果没有，则添加
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-----------------------------------------------------------------------------*/
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void CPropItemCombo::SetSelText(CString csText)
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{
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int nIndex = FindStringExact(0, csText);
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if (nIndex < 0 && !csText.IsEmpty())
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nIndex = AddString(csText);
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SetCurSel(nIndex);
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if (NULL != m_pInt)
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*m_pInt = nIndex;
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else if (NULL != m_pText)
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*m_pText = csText;
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}
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// 自动计算宽度
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void CPropItemCombo::RecalcDropWidth()
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{
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// Reset the dropped width
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int nNumEntries = GetCount();
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int nWidth = 0;
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CString str;
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CClientDC dc(this);
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int nSave = dc.SaveDC();
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dc.SelectObject(GetFont());
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int nScrollWidth = ::GetSystemMetrics(SM_CXVSCROLL);
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int nLength(0);
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for (int i = 0; i < nNumEntries; i++)
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{
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GetLBText(i, str);
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nLength = dc.GetTextExtent(str).cx + nScrollWidth;
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nWidth = max(nWidth, nLength);
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}
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// Add margin space to the calculations
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nWidth += dc.GetTextExtent(_T("0")).cx;
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dc.RestoreDC(nSave);
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SetDroppedWidth(nWidth);
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}
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