hawkview.cpp

程序编写环境为Visual Studio.NET 2002

// HawkView.cpp : implementation file
//

#include "stdafx.h"
#include "NameGis.h"
#include "HawkView.h"
#include "MapObjects2.h"
#include "mainfrm.h"
#include "Environment.h"
#include "MoGeoDataset.h"
#include "MoLabelPlacer.h"
#include "MapHelper.h"
#include "HawkView.h"
#include "AppApi.h"
#include "NameGisView.h"
// CHawkView

IMPLEMENT_DYNCREATE(CHawkView, CFormView)

CHawkView::CHawkView()
	: CFormView(CHawkView::IDD)
{
}

CHawkView::~CHawkView()
{
}

void CHawkView::DoDataExchange(CDataExchange* pDX)
{
	CFormView::DoDataExchange(pDX);
	DDX_Control(pDX, IDC_HAWKMAP, m_HawkMap);
}

BEGIN_MESSAGE_MAP(CHawkView, CFormView)
	ON_WM_SIZE()
END_MESSAGE_MAP()


// CHawkView diagnostics

#ifdef _DEBUG
void CHawkView::AssertValid() const
{
	CFormView::AssertValid();
}

void CHawkView::Dump(CDumpContext& dc) const
{
	CFormView::Dump(dc);
}
#endif //_DEBUG


// CHawkView message handlers
//-----------------------------------------------------------------------------------------
void CHawkView::OnSize(UINT nType, int cx, int cy)
{
	CFormView::OnSize(nType, cx, cy);

	if (m_HawkMap.m_hWnd)// 首先需要判断鹰眼地图控件窗口是否已经创建
		// 将鹰眼地图控件的大小调整为视图窗口的大小
		m_HawkMap.SetWindowPos(0, 0, 0, cx, cy, SWP_NOZORDER);
}
//-----------------------------------------------------------------------------------------
void CHawkView::LoadLayersForEagleEye()
{
	CMainFrame* pMainWnd = (CMainFrame*)AfxGetMainWnd();
	CEnvironment* environment = &(pMainWnd->m_environment);
	// 得到地图中的图层集合
	CMoLayers layers(m_HawkMap.GetLayers());
	// 清空图层集合，也即删除地图中的所有图层
	layers.Clear();
	m_HawkMap.SetScrollBars(false); 

	// 分点、线、多边形3类图层依次加入
	for (int i = 0; i < environment->m_nLayerNum; i ++)
	{
		CMoMapLayer layer;
		layer.CreateDispatch(TEXT("MapObjects2.MapLayer"));
        
		// 只加入大类属于北京纵览的图层
		if (environment->m_layerInfos[i].szType == "北京纵览")
		{
			CMoGeoDataset gds;
			gds = environment->m_db.FindGeoDataset(
				environment->m_layerInfos[i].szFileName);
			layer.SetGeoDataset(gds);
			
			if (layer.GetValid() )
			{
				if (layer.GetShapeType() == moShapeTypePoint)
					continue;
				
				if (layer.GetShapeType() == moShapeTypeLine)
					continue;
				
				// 在图层集合中加入当前图层
				layers.Add(layer);				
				
				layer.GetSymbol().SetOutline(false);
				if (environment->m_layerInfos[i].nCharacterIndex >= 0 && 
					environment->m_layerInfos[i].nCharacterIndex <= 10)
				{
					layer.GetSymbol().SetStyle(
						(short)environment->m_layerInfos[i].nCharacterIndex);
				}
				else if (100 == environment->m_layerInfos[i].nCharacterIndex)
				{
					// 设置多边形图层的颜色
					SetPolygonLayerColor(layer, "名称","颜色",false);
				}						
	
				//设置颜色
				if (environment->m_layerInfos[i].nSymColor != 
					environment->SYMBOL_COLOR_NONE)
				{
					layer.GetSymbol().SetColor(
						environment->m_layerInfos[i].nSymColor);
				}				
			}
		}
	}
	
	m_HawkMap.SetExtent(m_HawkMap.GetFullExtent()); 
}
//-----------------------------------------------------------------------------------------

BEGIN_EVENTSINK_MAP(CHawkView, CFormView)
	ON_EVENT(CHawkView, IDC_HAWKMAP, 3, AfterLayerDrawHawkmap, VTS_I2 VTS_BOOL VTS_I4)
	ON_EVENT(CHawkView, IDC_HAWKMAP, DISPID_MOUSEDOWN, MouseDownHawkmap, VTS_I2 VTS_I2 VTS_I4 VTS_I4)
END_EVENTSINK_MAP()
//-----------------------------------------------------------------------------------------
// 在鹰眼地图上绘制一矩形，用于表示当前在地图中显示范围
void CHawkView::AfterLayerDrawHawkmap(short index, BOOL canceled, long hDC)
{	
	if(index != 0)
		return;

	// 构造一符号对象
	CMoSymbol sym;
	sym.CreateDispatch(_T("MapObjects2.Symbol"));
	sym.SetOutlineColor(moRed);
	sym.SetOutline(TRUE);
	sym.SetSymbolType(moFillSymbol);
	sym.SetStyle(moTransparentFill);
    
	CMainFrame* pMainWnd = (CMainFrame*)AfxGetMainWnd();
	CNameGisView* pMapView = (CNameGisView*)(pMainWnd->m_wndSplitter.GetPane(0,0));
	// 利用构建的符号绘制表示地图显示范围的矩形
	m_HawkMap.DrawShape(pMapView->m_Map.GetExtent(), sym);
}
//-----------------------------------------------------------------------------------------
void CHawkView::MouseDownHawkmap(short Button, short Shift, long X, long Y)
{
	// 构建一符号对象
	CMoSymbol sym;
	sym.CreateDispatch(_T("MapObjects2.Symbol"));
	sym.SetOutlineColor(moRed);
	sym.SetOutline(TRUE);
	sym.SetSymbolType(moFillSymbol);	
	sym.SetStyle(moTransparentFill);

	CMoPoint point;
	point = m_HawkMap.ToMapPoint(X, Y);
	CMainFrame* pMainWnd = (CMainFrame*)AfxGetMainWnd();
	CNameGisView* pMapView = (CNameGisView*)(pMainWnd->m_wndSplitter.GetPane(0,0));
	// 将地图窗口中的地图的中心点设置为鼠标单击位置处
	pMapView->m_Map.CenterAt(point.GetX(), point.GetY());
	
	m_HawkMap.SetExtent(m_HawkMap.GetExtent());
}
//-----------------------------------------------------------------------------------------