duilib Combo 支持编辑

ComboEdit.h

#ifndef __UICOMBOEDIT_H__
#define __UICOMBOEDIT_H__
#pragma once

namespace DuiLib
{
    class CComboEditWnd;
    class DUILIB_API CComboEditUI:public CComboUI
    {
    public:
        CComboEditUI();
        LPCTSTR GetClass() const;
        LPVOID GetInterface(LPCTSTR pstrName);

    

        CDuiString GetText() const;


        void DoEvent(TEventUI& event);
        int  GetFont();
        void SetFont(int iFont);
        UINT GetTextStyle();
        void SetTextStyle(UINT iTextStyle);
        int  GetMaxChar();
        void SetMaxChar(int iMaxChar);
        DWORD  GetNativeEditBkColor();
        void SetNativeEditBkColor(DWORD dwColor);
        DWORD GetTextColor();
        void SetTextColor(DWORD dwColor);
        
        CDuiString m_sText;
        CComboEditWnd* m_pEditWnd;
        BOOL SelectItem(int iIndex, BOOL bTakeFocus = FALSE, BOOL bTriggerEvent = TRUE);
        void PaintText(HDC hDC);
    private:
        int GetCurSel() const;
        int m_iMaxChar;
        int m_iFont;
        UINT m_uTextStyle;
        DWORD m_dwNativeEditBkColor;
        DWORD m_dwTextColor;
        DWORD m_dwDisabledTextColor;
    };

}// end Duilib
#endif // __UICOMBOEDIT_H__

ComboEdit.cpp

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#include "stdafx.h"
#include "UIComboEdit.h"
#include <olectl.h>
 
namespace DuiLib
{
     
    class DUILIB_API CComboEditWnd : public CWindowWnd
    {
    public:
        CComboEditWnd();
 
        void Init(CComboEditUI* pOwner);
        RECT CalPos();
 
        LPCTSTR GetWindowClassName() const;
        LPCTSTR GetSuperClassName() const;
        void OnFinalMessage(HWND hWnd);
 
        LRESULT HandleMessage(UINT uMsg, WPARAM wParam, LPARAM lParam);
        LRESULT OnKillFocus(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
        LRESULT OnEditChanged(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
 
    protected:
        enum {
            DEFAULT_TIMERID = 20,
        };
 
        CComboEditUI* m_pOwner;
        HBRUSH m_hBkBrush;
        BOOL m_bInit;
        BOOL m_bDrawCaret;
    };
 
    CComboEditWnd::CComboEditWnd() : m_pOwner(NULL), m_hBkBrush(NULL), m_bInit(FALSE), m_bDrawCaret(FALSE)
    {
    }
 
    void CComboEditWnd::Init(CComboEditUI* pOwner)
    {
        m_pOwner = pOwner;
        RECT rcPos = CalPos();
        UINT uStyle = WS_CHILD | ES_AUTOHSCROLL ;
        UINT uTextStyle = m_pOwner->GetTextStyle();
        if (uTextStyle & DT_LEFT) uStyle |= ES_LEFT;
        else if (uTextStyle & DT_CENTER) uStyle |= ES_CENTER;
        else if (uTextStyle & DT_RIGHT) uStyle |= ES_RIGHT;
         
        Create(m_pOwner->GetManager()->GetPaintWindow(), NULL, uStyle, 0, rcPos);
 
        HFONT hFont = NULL;
        int iFontIndex = m_pOwner->GetFont();
        if (iFontIndex != -1)
            hFont = m_pOwner->GetManager()->GetFont(iFontIndex);
        if (hFont == NULL)
            hFont = m_pOwner->GetManager()->GetDefaultFontInfo()->hFont;
 
        SetWindowFont(m_hWnd, hFont, TRUE);
        Edit_LimitText(m_hWnd, m_pOwner->GetMaxChar());
 
         
        Edit_SetText(m_hWnd, m_pOwner->GetText());
        Edit_SetModify(m_hWnd, FALSE);
        SendMessage(EM_SETMARGINS, EC_LEFTMARGIN | EC_RIGHTMARGIN, MAKELPARAM(0, 0));
        Edit_Enable(m_hWnd, m_pOwner->IsEnabled() == TRUE);
         
 
        //Styls
        ::ShowWindow(m_hWnd, SW_SHOWNOACTIVATE);
        ::SetFocus(m_hWnd);
 
        int nSize = GetWindowTextLength(m_hWnd);
        Edit_SetSel(m_hWnd, nSize, nSize);
     
 
        m_bInit = TRUE;
    }
 
    RECT CComboEditWnd::CalPos()
    {
        CDuiRect rcPos = m_pOwner->GetPos();
        RECT rcInset = m_pOwner->GetTextPadding();
        rcPos.left += rcInset.left;
        rcPos.top += rcInset.top;
        rcPos.right -= rcInset.right;
        rcPos.bottom -= rcInset.bottom;
        LONG lEditHeight = m_pOwner->GetManager()->GetFontInfo(m_pOwner->GetFont())->tm.tmHeight;
        if (lEditHeight < rcPos.GetHeight()) {
            rcPos.top += (rcPos.GetHeight() - lEditHeight) / 2;
            rcPos.bottom = rcPos.top + lEditHeight;
        }
 
        CControlUI* pParent = m_pOwner;
        RECT rcParent;
        while (pParent = pParent->GetParent()) {
            if (!pParent->IsVisible()) {
                rcPos.left = rcPos.top = rcPos.right = rcPos.bottom = 0;
                break;
            }
            rcParent = pParent->GetClientPos();
            if (!::IntersectRect(&rcPos, &rcPos, &rcParent)) {
                rcPos.left = rcPos.top = rcPos.right = rcPos.bottom = 0;
                break;
            }
        }
 
        return rcPos;
    }
 
    LPCTSTR CComboEditWnd::GetWindowClassName() const
    {
        return _T("ComboEditWnd");
    }
 
    LPCTSTR CComboEditWnd::GetSuperClassName() const
    {
        return WC_EDIT;
    }
 
    void CComboEditWnd::OnFinalMessage(HWND hWnd)
    {
         
        m_pOwner->Invalidate();
        // Clear reference and die
        if (m_hBkBrush != NULL) ::DeleteObject(m_hBkBrush);
        m_pOwner->GetManager()->RemoveNativeWindow(hWnd);
        m_pOwner->m_pEditWnd= NULL;
        delete this;
    }
 
    LRESULT CComboEditWnd::HandleMessage(UINT uMsg, WPARAM wParam, LPARAM lParam)
    {
        LRESULT lRes = 0;
        BOOL bHandled = TRUE;
        if (uMsg == WM_CREATE) {
            m_pOwner->GetManager()->AddNativeWindow(m_pOwner, m_hWnd);
            if (m_pOwner->GetManager()->IsLayered()) {
                ::SetTimer(m_hWnd, DEFAULT_TIMERID, ::GetCaretBlinkTime(), NULL);
            }
            bHandled = FALSE;
        }
        else if (uMsg == WM_KILLFOCUS) lRes = OnKillFocus(uMsg, wParam, lParam, bHandled);
        else if (uMsg == OCM_COMMAND) {
            if (GET_WM_COMMAND_CMD(wParam, lParam) == EN_CHANGE) lRes = OnEditChanged(uMsg, wParam, lParam, bHandled);
            else if (GET_WM_COMMAND_CMD(wParam, lParam) == EN_UPDATE) {
                RECT rcClient;
                ::GetClientRect(m_hWnd, &rcClient);
                ::InvalidateRect(m_hWnd, &rcClient, FALSE);
            }
        }
        else if (uMsg == WM_KEYDOWN && TCHAR(wParam) == VK_RETURN) {
            m_pOwner->GetManager()->SendNotify(m_pOwner, DUI_MSGTYPE_RETURN);
        }
        else if (uMsg == OCM__BASE + WM_CTLCOLOREDIT || uMsg == OCM__BASE + WM_CTLCOLORSTATIC) {
            if (m_pOwner->GetManager()->IsLayered() && !m_pOwner->GetManager()->IsPainting()) {
                m_pOwner->GetManager()->AddNativeWindow(m_pOwner, m_hWnd);
            }
            DWORD clrColor = m_pOwner->GetNativeEditBkColor();
            if (clrColor == 0xFFFFFFFF) return 0;
            ::SetBkMode((HDC)wParam, TRANSPARENT);
            DWORD dwTextColor = m_pOwner->GetTextColor();
            ::SetTextColor((HDC)wParam, RGB(GetBValue(dwTextColor), GetGValue(dwTextColor), GetRValue(dwTextColor)));
            if (clrColor < 0xFF000000) {
                if (m_hBkBrush != NULL) ::DeleteObject(m_hBkBrush);
                RECT rcWnd = m_pOwner->GetManager()->GetNativeWindowRect(m_hWnd);
                HBITMAP hBmpEditBk = CRenderEngine::GenerateBitmap(m_pOwner->GetManager(), rcWnd, m_pOwner, clrColor);
                m_hBkBrush = ::CreatePatternBrush(hBmpEditBk);
                ::DeleteObject(hBmpEditBk);
            }
            else {
                if (m_hBkBrush == NULL) {
                    m_hBkBrush = ::CreateSolidBrush(RGB(GetBValue(clrColor), GetGValue(clrColor), GetRValue(clrColor)));
                }
            }
            return (LRESULT)m_hBkBrush;
        }
        else if (uMsg == WM_PAINT) {
            if (m_pOwner->GetManager()->IsLayered()) {
                m_pOwner->GetManager()->AddNativeWindow(m_pOwner, m_hWnd);
            }
            bHandled = FALSE;
        }
        else if (uMsg == WM_PRINT) {
            if (m_pOwner->GetManager()->IsLayered()) {
                lRes = CWindowWnd::HandleMessage(uMsg, wParam, lParam);
                if (m_pOwner->IsEnabled() && m_bDrawCaret) { // todo:判断是否enabled
                    RECT rcClient;
                    ::GetClientRect(m_hWnd, &rcClient);
                    POINT ptCaret;
                    ::GetCaretPos(&ptCaret);
                    RECT rcCaret = { ptCaret.x, ptCaret.y, ptCaret.x, ptCaret.y + rcClient.bottom - rcClient.top };
                    CRenderEngine::DrawLine((HDC)wParam, rcCaret, 1, 0xFF000000);
                }
                return lRes;
            }
            bHandled = FALSE;
        }
        else if (uMsg == WM_TIMER) {
            if (wParam == DEFAULT_TIMERID) {
                m_bDrawCaret = !m_bDrawCaret;
                RECT rcClient;
                ::GetClientRect(m_hWnd, &rcClient);
                ::InvalidateRect(m_hWnd, &rcClient, FALSE);
                return 0;
            }
            bHandled = FALSE;
        }
        else bHandled = FALSE;
        if (!bHandled) return CWindowWnd::HandleMessage(uMsg, wParam, lParam);
        return lRes;
    }
 
    LRESULT CComboEditWnd::OnKillFocus(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
    {
        LRESULT lRes = ::DefWindowProc(m_hWnd, uMsg, wParam, lParam);
        if ((HWND)wParam != m_pOwner->GetManager()->GetPaintWindow()) {
            ::SendMessage(m_pOwner->GetManager()->GetPaintWindow(), WM_KILLFOCUS, wParam, lParam);
        }
        SendMessage(WM_CLOSE);
        return lRes;
    }
 
    LRESULT CComboEditWnd::OnEditChanged(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
    {
        if (!m_bInit) return 0;
        if (m_pOwner == NULL) return 0;
        // Copy text back
        int cchLen = ::GetWindowTextLength(m_hWnd) + 1;
        LPTSTR pstr = static_cast<LPTSTR>(_alloca(cchLen * sizeof(TCHAR)));
        ASSERT(pstr);
        if (pstr == NULL) return 0;
        ::GetWindowText(m_hWnd, pstr, cchLen);
        m_pOwner->m_sText = pstr;
        m_pOwner->SetToolTip(pstr);
         
        m_pOwner->GetManager()->SendNotify(m_pOwner, DUI_MSGTYPE_TEXTCHANGED);
        if (m_pOwner->GetManager()->IsLayered()) m_pOwner->Invalidate();
        return 0;
    }
 
 
    CComboEditUI::CComboEditUI()
    {
        m_iMaxChar = -1;
        m_pEditWnd = NULL;
        m_iFont = 1;
        m_uTextStyle = DT_VCENTER | DT_SINGLELINE;
        m_dwNativeEditBkColor = 0x00000000;
        m_dwTextColor = 0x00000000;
        m_dwDisabledTextColor = 0;
    }
 
    LPCTSTR CComboEditUI::GetClass() const
    {
        return DUI_CTR_COMBOEDIT;
    }
 
 
    LPVOID CComboEditUI::GetInterface(LPCTSTR pstrName)
    {
        if (_tcscmp(pstrName, DUI_CTR_COMBO) == 0) return static_cast<CComboEditUI*>(this);
        return CComboUI::GetInterface(pstrName);
    }
 
 
    DuiLib::CDuiString CComboEditUI::GetText() const
    {
        return m_sText;
    }
 
    void CComboEditUI::DoEvent(TEventUI& event)
    {
        if (!IsMouseEnabled() && event.Type > UIEVENT__MOUSEBEGIN && event.Type < UIEVENT__MOUSEEND) {
            if (m_pParent != NULL) m_pParent->DoEvent(event);
            else CComboUI::DoEvent(event);
            return;
        }
         
        if (event.Type == UIEVENT_KILLFOCUS)
        {
            if (m_pEditWnd)
            {
                m_pEditWnd->ShowWindow(FALSE, FALSE);
            }
             
            return;
        }
        if ( event.Type == UIEVENT_DBLCLICK || event.Type== UIEVENT_RBUTTONDOWN)
        {
             
             
            if (m_pEditWnd)
            {
                m_pEditWnd->ShowWindow(TRUE, TRUE);
            }
 
            if (m_pEditWnd) return;
            m_pEditWnd = new CComboEditWnd();
            ASSERT(m_pEditWnd);
            m_pEditWnd->Init(this);
 
             
             
        }
         
 
        CComboUI::DoEvent(event);
    }
 
    int CComboEditUI::GetFont()
    {
        return m_iFont;
    }
 
    void CComboEditUI::SetFont(int iFont)
    {
        m_iFont = iFont;
 
    }
 
    UINT CComboEditUI::GetTextStyle()
    {
        return m_uTextStyle;
    }
 
    void CComboEditUI::SetTextStyle(UINT iTextStyle)
    {
        m_uTextStyle = iTextStyle;
    }
 
    int CComboEditUI::GetMaxChar()
    {
        return m_iMaxChar;
    }
 
    void CComboEditUI::SetMaxChar(int iMaxChar)
    {
        m_iMaxChar = iMaxChar;
    }
 
    DWORD CComboEditUI::GetNativeEditBkColor()
    {
        return m_dwNativeEditBkColor;
    }
 
    void CComboEditUI::SetNativeEditBkColor(DWORD dwColor)
    {
        m_dwNativeEditBkColor = dwColor;
    }
 
    DWORD CComboEditUI::GetTextColor()
    {
        return m_dwTextColor;
    }
 
    void CComboEditUI::SetTextColor(DWORD dwColor)
    {
        m_dwTextColor = dwColor;
    }
 
 
 
    BOOL CComboEditUI::SelectItem(int iIndex, BOOL bTakeFocus /*= FALSE*/, BOOL bTriggerEvent /*= TRUE*/)
    {
        if (m_bSelectCloseFlag && m_pWindow != NULL) m_pWindow->Close();
        if (iIndex == m_iCurSel) return TRUE;
        int iOldSel = m_iCurSel;
        if (m_iCurSel >= 0) {
            CControlUI* pControl = static_cast<CControlUI*>(m_items[m_iCurSel]);
            if (!pControl) return FALSE;
             
            IListItemUI* pListItem = static_cast<IListItemUI*>(pControl->GetInterface(DUI_CTR_ILISTITEM));
            if (pListItem != NULL) pListItem->Select(FALSE, bTriggerEvent);
            m_iCurSel = -1;
        }
        if (iIndex < 0) return FALSE;
        if (m_items.GetSize() == 0) return FALSE;
        if (iIndex >= m_items.GetSize()) iIndex = m_items.GetSize() - 1;
        CControlUI* pControl = static_cast<CControlUI*>(m_items[iIndex]);
        if (!pControl || !pControl->IsVisible() || !pControl->IsEnabled()) return FALSE;
         
        m_sText = pControl->GetText();
        SetToolTip(m_sText);
        IListItemUI* pListItem = static_cast<IListItemUI*>(pControl->GetInterface(DUI_CTR_ILISTITEM));
        if (pListItem == NULL) return FALSE;
        m_iCurSel = iIndex;
        if (m_pWindow != NULL || bTakeFocus) pControl->SetFocus();
        pListItem->Select(TRUE, bTriggerEvent);
        if (m_pManager != NULL && bTriggerEvent) m_pManager->SendNotify(this, DUI_MSGTYPE_ITEMSELECT, m_iCurSel, iOldSel);
         
         
        Invalidate();
        return TRUE;
    }
 
    void CComboEditUI::PaintText(HDC hDC)
    {
        if (!m_bShowText)
        {
            return;
        }
        if (m_pEditWnd && IsWindowVisible(m_pEditWnd->GetHWND()))
        {
            return;
        }
        RECT rcText = m_rcItem;
        rcText.left += m_rcTextPadding.left;
        rcText.right -= m_rcTextPadding.right;
        rcText.top += m_rcTextPadding.top;
        rcText.bottom -= m_rcTextPadding.bottom;
 
        if (m_iCurSel >= 0) {
            CListLabelElementUI* pControl = static_cast<CListLabelElementUI*>(m_items[m_iCurSel]);
             
            if (pControl)
            {
                CDuiString strIcon = pControl->GetIcon();
                SIZE szIcon = pControl->GetIconSize();
                if (strIcon != _T(""))
                {
                    IListOwnerUI* pOwner = pControl->GetOwner();
                    if (pOwner == NULL) return;
                    TListInfoUI* pInfo = pOwner->GetListInfo();
                    if (pInfo == NULL) return;
 
                    int left, right;
                    left =0;
                    right = left + szIcon.cx;
                    TDrawInfo   diIcon;
                    CDuiString pStrImage;
                    int bottom, top = (rcText.bottom - rcText.top - szIcon.cy) / 2;
                    bottom = top + szIcon.cy;
                    pStrImage.SmallFormat(_T("file='%s' dest='%d,%d,%d,%d'"), strIcon.GetData(), left, top, right, bottom);
                    diIcon.Clear();
                    diIcon.sDrawString = pStrImage;
                    CRenderEngine::DrawImage(hDC, m_pManager, rcText, m_rcPaint, diIcon);
                    m_uTextStyle |=  pInfo->uTextStyle;
                }
                 
                rcText.left += szIcon.cx;
            }
             
 
        }
 
        if (m_dwTextColor == 0) m_dwTextColor = m_pManager->GetDefaultFontColor();
        if (m_dwDisabledTextColor == 0) m_dwDisabledTextColor = m_pManager->GetDefaultDisabledColor();
 
        if (m_sText.IsEmpty()) return;
 
         
         
         
        if (IsEnabled()) {
            CRenderEngine::DrawText(hDC, m_pManager, rcText, m_sText, m_dwTextColor, \
                m_iFont, DT_SINGLELINE | m_uTextStyle);
        }
        else {
            CRenderEngine::DrawText(hDC, m_pManager, rcText, m_sText, m_dwDisabledTextColor, \
                m_iFont, DT_SINGLELINE | m_uTextStyle);
 
        }
    }
     
 
    int CComboEditUI::GetCurSel() const
    {
        return -1;
    }
 
}// end duilib