TnbWndTextDrawer.h

[詳解]

#pragma once
#include "TnbTextDrawer.h"
#include "TnbPartsDrawable.h"
 
 
 
//TNB Library
namespace TNB
{
 
 
 
class CWndTextDrawer : public CNullDrawer
{
    DEFSUPER(CNullDrawer);
public:
 
    CWndTextDrawer(const SIZE& size, HWND hWnd, COLORREF color, DWORD style, int cx = 2, int cy = 2, const IPartsDrawable* pParts = NULL)
        : _super(size), m_style(style), m_color(color), m_hWnd(hWnd), m_cx(cx), m_cy(cy), m_pParts(pParts), m_bkMode(TRANSPARENT)
    {
    }
 
    CWndTextDrawer(HWND hWnd, COLORREF color, DWORD style, int cx = 2, int cy = 2, const IPartsDrawable* pParts = NULL)
        : _super(), m_style(style), m_color(color), m_hWnd(hWnd), m_cx(cx), m_cy(cy), m_pParts(pParts), m_bkMode(TRANSPARENT)
    {
    }
 
    virtual IDrawable* Clone(void) const
    {
        CWndTextDrawer* P = new CWndTextDrawer(NULL, RGB(0, 0, 0), 0);
        *P = *this;
        return P;
    }
 
    virtual void Draw(HDC dc, int x = 0, int y = 0) const
    {
        if ( ::IsWindow(m_hWnd) )
        {
            int iLen = ::GetWindowTextLength(m_hWnd);
            if ( iLen > 1 )
            {
                CWorkMemT<TCHAR> str(iLen + 2);
                ::GetWindowText(m_hWnd, str, iLen + 1);
                RECT rc = { x + m_cx, y + m_cy, x + m_size.cx - m_cx, y + m_size.cy - m_cy };
                CDcSelectAssistant dca(dc);
//              int oldBkMode = ::SetBkMode(dc, m_bkMode);
                dca.SetBkMode(m_bkMode);
                HFONT font = reinterpret_cast<HFONT>(::SendMessage(m_hWnd, WM_GETFONT, 0, 0));
//              HGDIOBJ oldObj = ::SelectObject(dc, font);
                dca.SelectFont(font);
                CTextDrawer::DrawTextRect(rc, dc, m_style, m_color, str);
                if ( m_pParts != NULL && ::GetFocus() == m_hWnd )
                {
                    RECT wr;
                    ::GetClientRect(m_hWnd, &wr);
                    rc.left--;
                    rc.right++;
                    rc.top--;
                    rc.bottom += 2;
                    ::IntersectRect(&rc, &rc, &wr);
                    m_pParts->DrawFocusRect(dc, &rc);
                }
//              ::SelectObject(dc, oldObj);
//              ::SetBkMode(dc, oldBkMode);
            }
        }
    }
 
    void SetTextColor(COLORREF color)
    {
        m_color = color;
    }
 
    void SetTextStyle(DWORD style)
    {
        m_style = style;
    }
 
    void SetBkMode(int mode)
    {
        m_bkMode = mode;
    }
 
private:
    HWND                    m_hWnd;     
    COLORREF                m_color;    
    DWORD                   m_style;    
    int                     m_cx;       
    int                     m_cy;       
    const IPartsDrawable*   m_pParts;   
    int                     m_bkMode;   
};
 
 
 
}; //TNB