colourpopup.cpp

实现彩色进度条

			m_ToolTip.AddTool(this,GetColourName(row,col),rect,1);
		}

}

BOOL CColourPopup::GetCellRect(int row, int col, const LPRECT &rect)
{
	if(row<0||row>=m_nNumRows||col<0||col>=m_nNumColumns)
		return FALSE;
	rect->left=col*m_nBoxSize+m_nMargin;
	rect->top=row*m_nBoxSize+m_nMargin;
	//当显示用户的文本时，将颜色板按钮部分下移
	if(m_bShowCustom)
		rect->top+=(m_nMargin+m_TextRect.Height());
	rect->right=rect->left+m_nBoxSize;
	rect->bottom=rect->top+m_nBoxSize;
	return TRUE;

}

void CColourPopup::OnPaint() 
{
	//创建绘制的CDC派生类
	CPaintDC dc(this); // device context for painting
	//绘制颜色单元
	// TODO: Add your message handler code here
	for(int row=0;row<m_nNumRows;row++)
		for(int col=0;col<m_nNumColumns;col++)
			DrawCell(&dc,row,col);
	//写用户文本
	if(m_bShowCustom)
		DrawCell(&dc,TEXT_BOX_VALUE,TEXT_BOX_VALUE);
	//显示出凸出的按钮效果
	CRect rect;
	GetClientRect(rect);
	dc.DrawEdge(rect,EDGE_RAISED,BF_RECT);

	// Do not call CWnd::OnPaint() for painting messages
}

void CColourPopup::DrawCell(CDC *pDC,int row,int col)
{
	if(m_bShowCustom&&row==TEXT_BOX_VALUE)
	{
		CRect TextButtonRect=m_TextRect;
		TextButtonRect.bottom-=(2*m_nMargin+2);
		//背景
		pDC->FillSolidRect(m_TextRect,::GetSysColor(COLOR_3DFACE));
		//按钮
		if(m_nCurrentRow==row&&m_nCurrentCol==col)
			pDC->DrawEdge(TextButtonRect,EDGE_RAISED,BF_RECT);
		//文本
		CFont *pOldFont=(CFont*)pDC->SelectObject(&m_Font);
		pDC->DrawText(m_strCustomText,TextButtonRect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);
		pDC->SelectObject(pOldFont);
		//文本下的水平线
		pDC->FillSolidRect(m_TextRect.left+2*m_nMargin,m_TextRect.bottom-m_nMargin-2,
			m_TextRect.Width()+4*m_nMargin,1,::GetSysColor(COLOR_3DSHADOW));
		pDC->FillSolidRect(m_TextRect.left+2*m_nMargin,m_TextRect.bottom-m_nMargin-1,
			m_TextRect.Width()+4*m_nMargin,1,::GetSysColor(COLOR_3DHILIGHT));
		return;
	}
	ASSERT (row>=0&&row<m_nNumRows);
	ASSERT (col>=0&&col<m_nNumColumns);

	//颜色板
	CPalette *pOldPalette;
	if(pDC->GetDeviceCaps(RASTERCAPS)&&RC_PALETTE)
	{
		pOldPalette=pDC->SelectPalette(&m_Palette,FALSE);
		pDC->RealizePalette();
	}
	CRect rect;
	if(!GetCellRect(row,col,rect)) return;
	//填充背景颜色
	if((m_nChosenColourRow==row&&m_nChosenColourCol==col)&&
		!(m_nCurrentRow==row&&m_nCurrentCol==col))
		pDC->FillSolidRect(rect,::GetSysColor(COLOR_3DHILIGHT));
	else
		pDC->FillSolidRect(rect,::GetSysColor(COLOR_3DFACE));
	//各个按钮
	if(m_nChosenColourRow==row&&m_nChosenColourCol==col)
		pDC->DrawEdge(rect,EDGE_SUNKEN,BF_RECT);
	else if(m_nCurrentRow==row&&m_nCurrentCol==col)
		pDC->DrawEdge(rect,EDGE_RAISED,BF_RECT);

	CBrush brush(PALETTERGB(GetRValue(GetColour(row,col)),
							GetGValue(GetColour(row,col)),
							GetBValue(GetColour(row,col))));
	CPen pen;
	pen.CreatePen(PS_SOLID,1,::GetSysColor(COLOR_3DSHADOW));
	CBrush* pOldBrush=(CBrush*)pDC->SelectObject(&brush);
	CPen*	pOldPen=	(CPen*)pDC->SelectObject(&pen);
	//绘各板单元的颜色
	rect.DeflateRect(m_nMargin+1,m_nMargin+1);
	pDC->Rectangle(rect);
	pDC->SelectObject(pOldBrush);
	pDC->SelectObject(pOldPen);
	brush.DeleteObject();
	pen.DeleteObject();
	if(pDC->GetDeviceCaps(RASTERCAPS)&RC_PALETTE)
		pDC->SelectPalette(pOldPalette,FALSE);

}

void CColourPopup::EndSelection(int nMessage)
{
	ReleaseCapture();
	//如果用户文本被选中，拾色器
	if(nMessage!=CPN_SELENDCANCEL&&m_nCurrentCol==TEXT_BOX_VALUE&&m_nCurrentRow==TEXT_BOX_VALUE)
	{
		CColorDialog dlg(m_crInitialColour,CC_FULLOPEN|CC_ANYCOLOR,this);
		if(dlg.DoModal()==IDOK)
			m_crColour=dlg.GetColor();
		else
			m_crColour=m_crInitialColour;
	}
	if(nMessage==CPN_SELENDCANCEL)
		m_crColour=m_crInitialColour;
	m_pParent->SendMessage(nMessage,(WPARAM)m_crColour,0);
	DestroyWindow();
}

void CColourPopup::OnLButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	
	CWnd::OnLButtonUp(nFlags, point);
	DWORD pos=GetMessagePos();
	point=CPoint(LOWORD(pos),HIWORD(pos));
	if(m_WindowRect.PtInRect(point))
		EndSelection(CPN_SELENDOK);
	else
		EndSelection(CPN_SELENDCANCEL);
}

void CColourPopup::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	int row,col;
	point.x-=m_nMargin;
	point.y-=m_nMargin;
	//检验鼠标是否在相应的区域
	if(m_bShowCustom&&m_TextRect.PtInRect(point))
		row=col=TEXT_BOX_VALUE;
	else
	{
		if(m_bShowCustom)
			point.y-=m_TextRect.Height();
		row=point.y/m_nBoxSize,
		col=point.x/m_nBoxSize;

		if(row<0||row>=m_nNumRows||col<0||col>=m_nNumColumns)
		{
			CWnd::OnMouseMove(nFlags,point);
			return;
		}
	}
	//得到相应行列，调用ChangeSelection
	if(row!=m_nCurrentRow||col!=m_nCurrentCol)
		ChangeSelection(row,col);

	CWnd::OnMouseMove(nFlags, point);
}

void CColourPopup::ChangeSelection(int row, int col)
{
	CClientDC dc(this);
	if((m_nCurrentRow>=0&&m_nCurrentRow<m_nNumRows&&
		m_nCurrentCol>=0&&m_nCurrentCol<m_nNumColumns)||
		(m_nCurrentCol==TEXT_BOX_VALUE))	//TEXT_BOX_VALUE=-2	
	{
		int OldRow=m_nCurrentRow;
		int Oldcol=m_nCurrentCol;
		m_nCurrentRow=m_nCurrentCol=-1;
		DrawCell(&dc,OldRow,Oldcol);
	}
	//选中的单元
	m_nCurrentRow=row;m_nCurrentCol=col;
	DrawCell(&dc,m_nCurrentRow,m_nCurrentCol);
	//选 中的单元颜色保存
	if(m_nCurrentRow==TEXT_BOX_VALUE&&m_nCurrentCol==TEXT_BOX_VALUE)
		m_pParent->SendMessage(CPN_SELCHANGE,(WPARAM)m_crInitialColour,0);
	else
	{
		m_crColour=GetColour(m_nCurrentRow,m_nCurrentCol);
		m_pParent->SendMessage(CPN_SELCHANGE,(WPARAM)m_crColour,0);
	}

}

void CColourPopup::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
	// TODO: Add your message handler code here and/or call default
	int row=m_nCurrentRow;
	int col=m_nCurrentCol;
	
	if(nChar==VK_DOWN)
	{
		if(row<0){row=0;col=0;}
		else if(row<m_nNumRows-1)row++;
		else {row=TEXT_BOX_VALUE;col=TEXT_BOX_VALUE;}
		ChangeSelection(row,col);
	}
	if(nChar==VK_UP)
	{	
		if(row<0){row=m_nNumRows-1;col=0;}
		else if(row>0)row--;
		else {row=TEXT_BOX_VALUE;col=TEXT_BOX_VALUE;}
		ChangeSelection(row,col);
	}
	if(nChar==VK_RIGHT)
	{
		if(col<0){row=0;col=0;}
		else if(col<m_nNumColumns-1)col++;
		else col=0;
		ChangeSelection(row,col);
	}
	if(nChar==VK_LEFT)
	{	
		if(col<0){row=m_nNumRows-1;col=m_nNumColumns-1;}
		else if(col>0)col--;
		else col=m_nNumRows;
		ChangeSelection(row,col);
	}
	if(nChar==VK_ESCAPE)
	{
		m_crColour=m_crInitialColour;
		EndSelection(CPN_SELENDCANCEL);
		return;
	}
	if(nChar==VK_RETURN)
	{
		EndSelection(CPN_SELENDOK);
		return;
	}

	CWnd::OnKeyDown(nChar, nRepCnt, nFlags);
}

BOOL CColourPopup::PreTranslateMessage(MSG* pMsg) 
{
	// TODO: Add your specialized code here and/or call the base class
	m_ToolTip.RelayEvent(pMsg);
	return CWnd::PreTranslateMessage(pMsg);
}

void CColourPopup::OnPaletteChanged(CWnd* pFocusWnd) 
{
	CWnd::OnPaletteChanged(pFocusWnd);
	
	// TODO: Add your message handler code here
	if(pFocusWnd->GetSafeHwnd()!=GetSafeHwnd())
		Invalidate();
}

BOOL CColourPopup::OnQueryNewPalette() 
{
	// TODO: Add your message handler code here and/or call default
	Invalidate();
	return CWnd::OnQueryNewPalette();
}

void CColourPopup::OnNcDestroy() 
{
	CWnd::OnNcDestroy();
	
	// TODO: Add your message handler code here
	delete this;
}