www.pudn.com > DrawTrend.zip > CyPaintBox.cpp

//--------------------------------------------------------------------------- 
#include "stdafx.h" 
#include "CyPaintBox.h" 
 
//--------------------------------------------------------------------------- 
// ValidCtrCheck is used to assure that the components created do not have 
// any pure virtual functions. 
// 
 
//--------------------------------------------------------------------------- 
TCyPaintBox::TCyPaintBox() 
{ 
    m_hDC = NULL; 
    m_pstFont = NULL; 
    m_hPen = NULL; 
    m_hBrush = NULL; 
 
    m_pstFont = new CFont; 
//    m_pstFont->Name = "system"; 
//    m_pstFont->Color = clYellow; 
//    m_pstFont->Size = 8; 
//    SetTextFont(m_pstFont); 
} 
//--------------------------------------------------------------------------- 
TCyPaintBox::~TCyPaintBox() 
{ 
    if(m_pstFont) 
    { 
        delete m_pstFont; 
        m_pstFont = NULL; 
    } 
} 
//--------------------------------------------------------------------------- 
COLORREF TCyPaintBox::GetXBackColor() 
{ 
    return XBackColor; 
} 
//--------------------------------------------------------------------------- 
void  TCyPaintBox::SetXBackColor(COLORREF color) 
{ 
    CPoint start(m_iLeft, m_iTop), end(m_iLeft + m_iWidth, m_iTop + m_iHeight); 
    XBackColor = color; 
    SetBkColor(m_hDC, color); 
    Rect(start, end, true, XBackColor); 
} 
//--------------------------------------------------------------------------- 
 
void TCyPaintBox::Line(CPoint start, CPoint end, COLORREF color) 
{ 
    m_hPen = CreatePen(PS_SOLID, 0, color); 
    SelectObject(m_hDC, m_hPen); 
 
    MoveToEx(m_hDC, start.x, start.y, NULL); 
    ::LineTo(m_hDC, end.x, end.y); 
 
    SelectObject(m_hDC, GetStockObject(NULL_PEN)); 
    DeleteObject(m_hPen); 
    m_hPen = NULL; 
} 
//--------------------------------------------------------------------------- 
 
void TCyPaintBox::LineTo(CPoint end, COLORREF color) 
{ 
    m_hPen = CreatePen(PS_SOLID, 0, color); 
    SelectObject(m_hDC, m_hPen); 
 
    ::LineTo(m_hDC, end.x, end.y); 
 
    SelectObject(m_hDC, GetStockObject(NULL_PEN)); 
    DeleteObject(m_hPen); 
    m_hPen = NULL; 
    //ReleaseDCPen(m_hPen); 
} 
//--------------------------------------------------------------------------- 
 
void TCyPaintBox::Rect(RECT rect, bool filled, COLORREF color) 
{ 
    int temp; 
    CPoint start, end; 
 
    if(rect.left > rect.right) 
    { 
        temp = rect.left; 
        rect.left = rect.right; 
        rect.right = temp; 
    } 
    if(rect.top > rect.bottom) 
    { 
        temp = rect.top; 
        rect.top = rect.bottom; 
        rect.bottom = temp; 
    } 
 
    if(filled) 
    { 
        //SelectObject(m_hDC, GetStockObject(DC_BRUSH)); 
        /* 
        SetDCBrushColor(m_hDC, color); 
        */ 
        m_hBrush = CreateSolidBrush(color); 
        SelectObject(m_hDC, m_hBrush); 
 
        FillRect(m_hDC, &rect, m_hBrush); 
 
        SelectObject(m_hDC, GetStockObject(BLACK_BRUSH)); 
        DeleteObject(m_hBrush); 
        m_hBrush = NULL; 
        //ReleaseDCBrush(m_hBrush); 
    } 
    else 
    { 
        //SelectObject(m_hDC, GetStockObject(DC_PEN)); 
        /* 
        SetDCPenColor(m_hDC, color); 
        */ 
        m_hPen = CreatePen(PS_SOLID, 0, color); 
        SelectObject(m_hDC, m_hPen); 
 
        ::MoveToEx(m_hDC, rect.left, rect.top, NULL); 
        ::LineTo(m_hDC, rect.right, rect.top); 
        ::LineTo(m_hDC, rect.right, rect.bottom); 
        ::LineTo(m_hDC, rect.left, rect.bottom); 
        ::LineTo(m_hDC, rect.left, rect.top); 
 
        SelectObject(m_hDC, GetStockObject(NULL_PEN)); 
        DeleteObject(m_hPen); 
        m_hPen = NULL; 
        //ReleaseDCPen(m_hPen); 
        //Rectangle(m_hDC, rect.left, rect.top, rect.right, rect.bottom); 
    } 
} 
//--------------------------------------------------------------------------- 
void TCyPaintBox::Rect(CPoint start, CPoint end, bool filled, COLORREF color) 
{ 
    RECT rect; 
	rect.top = start.y; 
	rect.left = start.x; 
	rect.bottom = end.y; 
	rect.right = end.x; 
 
    Rect(rect, filled, color); 
} 
//--------------------------------------------------------------------------- 
 
void TCyPaintBox::Rect(int left, int top, int width, int height, bool filled, COLORREF color) 
{ 
    CPoint start(left, top), end(left + width, top + height); 
    Rect(start, end, filled, color); 
} 
//--------------------------------------------------------------------------- 
 
void TCyPaintBox::SetTextFont(CFont * font) 
{ 
/* 
    HFONT hf; 
    m_pstFont = font; 
    hf = CreateFont(font->Height, font->Size, GM_COMPATIBLE, 0, 
        false, false, false, false, font->Charset, 
        OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, 
        0, font->Name.c_str()); 
 
    SelectObject(m_hDC, hf); 
 
    DeleteObject(hf); 
*/     
} 
//--------------------------------------------------------------------------- 
 
void TCyPaintBox::TextOut(int x, int y, char * str, COLORREF color) 
{ 
    COLORREF old_color = ::GetTextColor(m_hDC); 
 
    ::SetTextColor(m_hDC, color); 
    ::TextOut(m_hDC, x, y, str, strlen(str)); 
    ::SetTextColor(m_hDC, old_color); 
 
    //DeleteObject(old_color); 
} 
//--------------------------------------------------------------------------- 
void TCyPaintBox::TextOut(int x, int y, char * str, COLORREF color, char * szFontName, int iFontSize) 
{ 
//    char szOldFontName[255]; 
    COLORREF old_color = ::GetTextColor(m_hDC); 
//    int iOldFontSize = m_pstFont->Size ; 
//    strcpy(szOldFontName, m_pstFont->Name.c_str()); 
 
//    m_pstFont->Size = iFontSize; 
//    m_pstFont->Name = szFontName; 
 
//    SetTextFont(m_pstFont); 
    ::SetTextColor(m_hDC, color); 
    ::TextOut(m_hDC, x, y, str, strlen(str)); 
    ::SetTextColor(m_hDC, old_color); 
//    m_pstFont->Size = iOldFontSize; 
//    m_pstFont->Name = szOldFontName; 
 
//    SetTextFont(m_pstFont); 
 
    //DeleteObject(old_color); 
} 
//--------------------------------------------------------------------------- 
void TCyPaintBox::TextOut(CPoint start, char * str, COLORREF color) 
{ 
    COLORREF old_color = ::GetTextColor(m_hDC); 
 
    ::SetTextColor(m_hDC, color); 
    ::TextOut(m_hDC, start.x, start.y, str, strlen(str)); 
    ::SetTextColor(m_hDC, old_color); 
 
    //DeleteObject(old_color); 
} 
//---------------------------------------------------------------------------