wksp_layer_legend.cpp

这是一个GPS相关的程序

			{
				Pen		= dc.GetPen();
				Pen.SetColour(Get_Color_asWX(m_pClassify->Get_Class_Color(i)));
				dc.SetPen(Pen);
			}

			if( m_Box_bFill )
			{
				Brush	= dc.GetBrush();
				Brush.SetColour(Get_Color_asWX(m_pClassify->Get_Class_Color(i)));
				dc.SetBrush(Brush);
			}

			pLayer->Draw_Symbol(dc, m_xBox + m_dxBox / 2, y + (BOX_HEIGHT - BOX_SPACE) / 2, (BOX_HEIGHT - BOX_SPACE) / 2);

			_Draw_Label(dc, y, m_pClassify->Get_Class_Name(i), TEXTALIGN_TOP);
		}
	}

	//-----------------------------------------------------
	if( bSize )
	{
		dc.SetBrush(Brush);
		dc.SetPen(Pen);

		_Draw_Title(dc, FONT_SUBTITLE, Name_Size);
		_Draw_Point_Sizes(dc, pLayer, min_Size, max_Size, min_Value, d_Value);
		_Set_Size(0, SIZE_HEIGHT + dc.GetFont().GetPointSize());
	}
}

//---------------------------------------------------------
void CWKSP_Layer_Legend::_Draw_Point_Sizes(wxDC &dc, CWKSP_Shapes_Point *pLayer, int min_Size, int max_Size, double min_Value, double d_Value)
{
	int		iClass, nClasses, dy, y;
	double	iSize, dySize;

	nClasses	= (int)((double)SIZE_HEIGHT / (double)BOX_HEIGHT);
	dySize		= (double)(max_Size - min_Size) / (double)nClasses;

	for(iClass=nClasses, iSize=max_Size; iClass>=0; iClass--, iSize-=dySize)
	{
		dy	= (int)(2.0 * m_Zoom_Map * iSize) + BOX_SPACE;
		y	= m_Position.y + SIZE_HEIGHT - iClass * BOX_HEIGHT;

		pLayer->Draw_Symbol(dc, m_xBox + m_dxBox / 2, y + dy / 2, dy / 2);

		_Draw_Label	(dc, y, wxString::Format(wxT("%f"), min_Value + (iSize - min_Size) / d_Value), TEXTALIGN_TOP);
	}
}

//---------------------------------------------------------
void CWKSP_Layer_Legend::_Draw_Line(wxDC &dc, CWKSP_Shapes_Line *pLayer)
{
	bool		bSize;
	int			min_Size, max_Size, iSize, y;
	double		min_Value, dValue;
	wxString	Name, Name_Size;
	wxPen		Pen;

	//-----------------------------------------------------
	m_BoxStyle		= BOXSTYLE_LINE;
	m_Box_bFill		= false;
	m_Box_bOutline	= false;

	//-----------------------------------------------------
	bSize	= pLayer->Get_Style_Size(min_Size, max_Size, min_Value, dValue, &Name_Size);

	pLayer->Get_Style(Pen, &Name);

	if( m_pClassify->Get_Mode() != CLASSIFY_UNIQUE || !bSize )
	{
		dc.SetPen(Pen);

		if( Name.Length() > 0 )
		{
			_Draw_Title(dc, FONT_SUBTITLE, Name);
		}

		_Draw_Boxes(dc, m_Position.y);
	}

	//-----------------------------------------------------
	if( bSize )
	{
		_Draw_Title(dc, FONT_SUBTITLE, Name_Size);

		for(iSize=min_Size; iSize<=max_Size; iSize++)
		{
			Pen.SetWidth(iSize);
			dc.SetPen(Pen);

			y	= m_Position.y;

			_Draw_Box	(dc, y, BOX_HEIGHT, Pen.GetColour());
			_Draw_Label	(dc, y, wxString::Format(wxT("%f"), min_Value + (iSize - min_Size) / dValue), TEXTALIGN_TOP);
		}
	}
}

//---------------------------------------------------------
void CWKSP_Layer_Legend::_Draw_Polygon(wxDC &dc, CWKSP_Shapes_Polygon *pLayer)
{
	wxString	Name;
	wxPen		Pen;
	wxBrush		Brush;

	//-----------------------------------------------------
	m_BoxStyle	= BOXSTYLE_RECT;
	m_Box_bFill	= true;

	//-----------------------------------------------------
	pLayer->Get_Style(Pen, Brush, m_Box_bOutline, &Name);

	dc.SetBrush(Brush);
	dc.SetPen(Pen);

	if( Name.Length() > 0 )
	{
		_Draw_Title(dc, FONT_SUBTITLE, Name);
	}

	//-----------------------------------------------------
	_Draw_Boxes(dc, m_Position.y);
}

//---------------------------------------------------------
void CWKSP_Layer_Legend::_Draw_TIN(wxDC &dc, CWKSP_TIN *pLayer)
{
	//-----------------------------------------------------
	m_BoxStyle		= BOXSTYLE_RECT;
	m_Box_bFill		= true;
	m_Box_bOutline	= true;

	//-----------------------------------------------------
	switch( m_pClassify->Get_Mode() )
	{
	default:
		_Draw_Boxes(dc, m_Position.y);
		break;

	case CLASSIFY_METRIC:
	case CLASSIFY_SHADE:
		_Draw_Continuum(dc, m_Position.y, 1.0);
		break;
	}
}

//---------------------------------------------------------
void CWKSP_Layer_Legend::_Draw_Grid(wxDC &dc, CWKSP_Grid *pLayer)
{
	//-----------------------------------------------------
	m_BoxStyle		= BOXSTYLE_RECT;
	m_Box_bFill		= true;
	m_Box_bOutline	= true;

	//-----------------------------------------------------
	switch( m_pClassify->Get_Mode() )
	{
	default:
		_Draw_Boxes(dc, m_Position.y);
		break;

	case CLASSIFY_METRIC:
	case CLASSIFY_SHADE:
		if( pLayer->Get_Grid()->Get_Unit() && *(pLayer->Get_Grid()->Get_Unit()) )
		{
			_Draw_Title(dc, FONT_SUBTITLE, wxString::Format(wxT("[%s]"), pLayer->Get_Grid()->Get_Unit()));
		}

		_Draw_Continuum(dc, m_Position.y, pLayer->Get_Grid()->Get_ZFactor());
		break;

	case CLASSIFY_RGB:
		_Draw_Box_Image(dc, m_Position.y, pLayer->Get_Grid());
		break;
	}
}


///////////////////////////////////////////////////////////
//														 //
//														 //
//														 //
///////////////////////////////////////////////////////////

//---------------------------------------------------------
void CWKSP_Layer_Legend::_Draw_Boxes(wxDC &dc, int y)
{
	for(int i=m_pClassify->Get_Class_Count()-1; i>=0; i--, y+=BOX_HEIGHT)
	{
		_Draw_Box	(dc, y, BOX_HEIGHT, Get_Color_asWX(m_pClassify->Get_Class_Color(i)));
		_Draw_Label	(dc, y, m_pClassify->Get_Class_Name(i), TEXTALIGN_TOP);
	}
}


///////////////////////////////////////////////////////////
//														 //
//														 //
//														 //
///////////////////////////////////////////////////////////

//---------------------------------------------------------
void CWKSP_Layer_Legend::_Draw_Continuum(wxDC &dc, int y, double zFactor)
{
	int		i;
	double	zMin, zMax;

	//-----------------------------------------------------
	zMin	= m_pClassify->Get_RelativeToMetric(0.0);
	zMax	= m_pClassify->Get_RelativeToMetric(1.0);

	//-----------------------------------------------------
	if( zMin >= zMax )
	{
		if( m_pLayer->Get_Value_Range() > 0.0 )
		{
			i	= m_pClassify->Get_Class_Count() - 1;
			_Draw_Box	(dc, y, BOX_HEIGHT, Get_Color_asWX(m_pClassify->Get_Class_Color(i)));
			_Draw_Label	(dc, y, m_pClassify->Get_Class_Name(i), TEXTALIGN_TOP);

			y	+= BOX_HEIGHT;
		}

		i	= 0;
		_Draw_Box	(dc, y, BOX_HEIGHT, Get_Color_asWX(m_pClassify->Get_Class_Color(i)));
		_Draw_Label	(dc, y, m_pClassify->Get_Class_Name(i), TEXTALIGN_TOP);
	}

	//-----------------------------------------------------
	else if( METRIC_HEIGHT > m_pClassify->Get_Class_Count() * BOX_HEIGHT )
	{
		_Draw_Boxes(dc, y);
	}

	//-----------------------------------------------------
	else
	{
		int		dyFont;
		double	yToDC, dz;

		_Set_Font(dc, FONT_LABEL);
		dc.GetTextExtent(wxString::Format(wxT("01234567")), &i, &dyFont);

		zMin	*= zFactor;
		zMax	*= zFactor;
		yToDC	= METRIC_HEIGHT / (zMax - zMin);
		dz		= pow(10.0, floor(log10(zMax - zMin)) - 1.0);
		while( yToDC * dz < dyFont )
			dz	*= 2.0;

		yToDC	= METRIC_HEIGHT / (double)m_pClassify->Get_Class_Count();

		if( m_bVertical )
		{
			_Draw_Continuum_V(dc, y, yToDC, zMin, zMax, zFactor, dz, dyFont);
		}
		else
		{
			_Draw_Continuum_H(dc, y, yToDC, zMin, zMax, zFactor, dz, dyFont);
		}
	}
}

//---------------------------------------------------------
void CWKSP_Layer_Legend::_Draw_Continuum_V(wxDC &dc, int y, double yToDC, double zMin, double zMax, double zFactor, double dz, int dyFont)
{
	int		i, iy, jy;
	double	z;

	//-----------------------------------------------------
	for(i=0, z=y+METRIC_HEIGHT; i<m_pClassify->Get_Class_Count(); i++, z-=yToDC)
	{
		Draw_FillRect(dc, Get_Color_asWX(m_pClassify->Get_Class_Color(i)), m_xBox, (int)(z), m_xTick, (int)(z - yToDC));
	}

	Draw_Edge(dc, EDGE_STYLE_SIMPLE, m_xBox, y, m_xTick, y + METRIC_HEIGHT);

	//-----------------------------------------------------
	switch( m_pClassify->Get_Metric_Mode() )
	{
	case METRIC_MODE_NORMAL:	default:
		z	= dz * floor(zMin / dz);
		if( z < zMin )	z	+= dz;

		for(; z<=zMax; z+=dz)
		{
			iy	= METRIC_POS_V(z);
			dc.DrawLine(m_xTick, iy, m_xText, iy);

			_Draw_Label(dc, iy, METRIC_GET_STRING(z, dz), TEXTALIGN_YCENTER);
		}
		break;

	case METRIC_MODE_LOGUP:
		jy	= METRIC_POS_V(zMax) + (1 + dyFont);
		z	= dz * floor(zMax / dz);
		if( z > zMax )	z	-= dz;

		for(; z>=zMin; z-=dz)
		{
			iy	= METRIC_POS_V(z);
			dc.DrawLine(m_xTick, iy, m_xText, iy);

			if( abs(jy - iy) >= (int)(0.75 * dyFont) )
			{
				jy	= iy;
				_Draw_Label(dc, iy, METRIC_GET_STRING(z, dz), TEXTALIGN_YCENTER);
			}

			while( abs(iy - METRIC_POS_V(z - dz)) > 2 * dyFont )
				dz	*= 0.1;
		}
		break;

	case METRIC_MODE_LOGDOWN:
		jy	= METRIC_POS_V(zMin) - (1 + dyFont);
		z	= dz * floor(zMin / dz);
		if( z < zMin )	z	+= dz;

		for(; z<=zMax; z+=dz)
		{
			iy	= METRIC_POS_V(z);
			dc.DrawLine(m_xTick, iy, m_xText, iy);

			if( abs(jy - iy) >= (int)(0.75 * dyFont) )
			{
				jy	= iy;
				_Draw_Label(dc, iy, METRIC_GET_STRING(z, dz), TEXTALIGN_YCENTER);
			}

			while( abs(iy - METRIC_POS_V(z + dz)) > 2 * dyFont )
				dz	*= 0.1;
		}
		break;
	}

	//-----------------------------------------------------
	_Set_Size(0, METRIC_HEIGHT + dc.GetFont().GetPointSize());
}

//---------------------------------------------------------
void CWKSP_Layer_Legend::_Draw_Continuum_H(wxDC &dc, int y, double yToDC, double zMin, double zMax, double zFactor, double dz, int dyFont)
{
	int			i, iy, jy, yTick, yText, sx, sy;
	double		z;
	wxString	s;

	yTick	= y + m_dxBox;
	yText	= y + m_dxBox + m_dxTick;

	//-----------------------------------------------------
	for(i=0, z=m_xBox; i<m_pClassify->Get_Class_Count(); i++, z+=yToDC)
	{
		Draw_FillRect(dc, Get_Color_asWX(m_pClassify->Get_Class_Color(i)), (int)(z), y, (int)(z + yToDC), yTick);
	}

	Draw_Edge(dc, EDGE_STYLE_SIMPLE, m_xBox, y, m_xBox + METRIC_HEIGHT, yTick);

	//-----------------------------------------------------
	switch( m_pClassify->Get_Metric_Mode() )
	{
	case METRIC_MODE_NORMAL:	default:
		jy	= METRIC_POS_H(zMin) - METRIC_HEIGHT;
		z	= dz * floor(zMin / dz);
		if( z < zMin )	z	+= dz;

		for(; z<=zMax; z+=dz)
		{
			iy	= METRIC_POS_H(z);
			dc.DrawLine(iy, yTick, iy, yText);

			s	= METRIC_GET_STRING(z, dz);
			dc.GetTextExtent(s, &sx, &sy);

			if( abs(jy - iy) >= (int)(1.25 * sx) )
			{
				jy	= iy;
				Draw_Text(dc, TEXTALIGN_TOPCENTER, iy, yText, s);
			}
		}
		break;

	case METRIC_MODE_LOGUP:
		jy	= METRIC_POS_H(zMax) + METRIC_HEIGHT;
		z	= dz * floor(zMax / dz);
		if( z > zMax )	z	-= dz;

		for(; z>=zMin; z-=dz)
		{
			iy	= METRIC_POS_H(z);
			dc.DrawLine(iy, yTick, iy, yText);

			s	= METRIC_GET_STRING(z, dz);
			dc.GetTextExtent(s, &sx, &sy);

			if( abs(jy - iy) >= (int)(1.25 * sx) )
			{
				jy	= iy;
				Draw_Text(dc, TEXTALIGN_TOPCENTER, iy, yText, s);
			}

			while( abs(iy - METRIC_POS_H(z - dz)) > 2 * sx )
				dz	*= 0.1;
		}
		break;

	case METRIC_MODE_LOGDOWN:
		jy	= METRIC_POS_H(zMin) - METRIC_HEIGHT;
		z	= dz * floor(zMin / dz);
		if( z < zMin )	z	+= dz;

		for(; z<=zMax; z+=dz)
		{
			iy	= METRIC_POS_H(z);
			dc.DrawLine(iy, yTick, iy, yText);

			s	= METRIC_GET_STRING(z, dz);
			dc.GetTextExtent(s, &sx, &sy);

			if( abs(jy - iy) >= (int)(1.25 * sx) )
			{
				jy	= iy;
				Draw_Text(dc, TEXTALIGN_TOPCENTER, iy, yText, s);
			}

			while( abs(iy - METRIC_POS_H(z + dz)) > 2 * sx )
				dz	*= 0.1;
		}
		break;
	}

	//-----------------------------------------------------
	_Set_Size(METRIC_HEIGHT, yText + dyFont);
}


///////////////////////////////////////////////////////////
//														 //
//														 //
//														 //
///////////////////////////////////////////////////////////

//---------------------------------------------------------