serialsampleview.cpp

MapX+VC++的SerialSample,地图示例

// SerialSampleView.cpp : implementation of the CSerialSampleView class
//
/* This sample application and corresponding sample code is provided 
 * for example purposes only.  It has not undergone rigorous testing 
 * and as such should not be shipped as part of a final application 
 * without extensive testing on the part of the organization releasing 
 * the end-user product.
 */

#include "stdafx.h"
#include "SerialSample.h"

#include "SerialSampleDoc.h"
#include "SerialSampleView.h"
#include "ChooseListDialog.h"
#include "AddThemeDialog.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CSerialSampleView

IMPLEMENT_DYNCREATE(CSerialSampleView, CView)

BEGIN_MESSAGE_MAP(CSerialSampleView, CView)
	//{{AFX_MSG_MAP(CSerialSampleView)
	ON_WM_SIZE()
	ON_WM_SETFOCUS()
	ON_COMMAND(ID_ARROW_TOOL, OnArrowTool)
	ON_UPDATE_COMMAND_UI(ID_ARROW_TOOL, OnUpdateArrowTool)
	ON_COMMAND(ID_ZOOMIN_TOOL, OnZoominTool)
	ON_UPDATE_COMMAND_UI(ID_ZOOMIN_TOOL, OnUpdateZoominTool)
	ON_COMMAND(ID_ZOOMOUT_TOOL, OnZoomoutTool)
	ON_UPDATE_COMMAND_UI(ID_ZOOMOUT_TOOL, OnUpdateZoomoutTool)
	ON_COMMAND(ID_ADD_DATA, OnAddData)
	ON_COMMAND(ID_ADD_THEME, OnAddTheme)
	ON_UPDATE_COMMAND_UI(ID_ADD_THEME, OnUpdateAddTheme)
	ON_COMMAND(ID_LAYER_CONTROLS, OnLayerControls)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

BEGIN_EVENTSINK_MAP(CSerialSampleView, CView)
	ON_EVENT(CSerialSampleView, IDC_MAP, MAPX_DISPID_THEMEMODIFYREQUESTED, OnMapThemeModifyRequested, VTS_DISPATCH)
END_EVENTSINK_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSerialSampleView construction/destruction

CSerialSampleView::CSerialSampleView()
{
	// TODO: add construction code here

}

CSerialSampleView::~CSerialSampleView()
{
}

BOOL CSerialSampleView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CSerialSampleView drawing

void CSerialSampleView::OnDraw(CDC* pDC)
{
	CSerialSampleDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CSerialSampleView printing

BOOL CSerialSampleView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CSerialSampleView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CSerialSampleView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CSerialSampleView diagnostics

#ifdef _DEBUG
void CSerialSampleView::AssertValid() const
{
	CView::AssertValid();
}

void CSerialSampleView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CSerialSampleDoc* CSerialSampleView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CSerialSampleDoc)));
	return (CSerialSampleDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CSerialSampleView message handlers

void CSerialSampleView::OnSize(UINT nType, int cx, int cy) 
{
	CView::OnSize(nType, cx, cy);
	
	CMapX* map = GetDocument()->GetMap();
	if(map != NULL)
		map->MoveWindow(0,0,cx,cy);
}

void CSerialSampleView::OnSetFocus(CWnd* pOldWnd) 
{
	CView::OnSetFocus(pOldWnd);
	
	CMapX* map = GetDocument()->GetMap();
	if(map != NULL)
		map->SetFocus();
}

void CSerialSampleView::OnArrowTool() 
{
	try {
		CMapX* map = GetDocument()->GetMap();
		if(map != NULL)
			map->SetCurrentTool(miArrowTool);
	} catch(COleDispatchException* e) {
		e->ReportError();
		e->Delete();
	} catch(COleException* e) {
		e->ReportError();
		e->Delete();
	}
}

void CSerialSampleView::OnUpdateArrowTool(CCmdUI* pCmdUI) 
{
	try {
		CMapX* map = GetDocument()->GetMap();
		if(map != NULL) {
			pCmdUI->Enable(TRUE);
			pCmdUI->SetCheck(map->GetCurrentTool() == miArrowTool);
		} else
			pCmdUI->Enable(FALSE);
	} catch(COleDispatchException* e) {
		e->ReportError();
		e->Delete();
	} catch(COleException* e) {
		e->ReportError();
		e->Delete();
	}
}

void CSerialSampleView::OnZoominTool() 
{
	try {
		CMapX* map = GetDocument()->GetMap();
		if(map != NULL)
			map->SetCurrentTool(miZoomInTool);
	} catch(COleDispatchException* e) {
		e->ReportError();
		e->Delete();
	} catch(COleException* e) {
		e->ReportError();
		e->Delete();
	}

}

void CSerialSampleView::OnUpdateZoominTool(CCmdUI* pCmdUI) 
{
	try {
		CMapX* map = GetDocument()->GetMap();
		if(map != NULL) {
			pCmdUI->Enable(TRUE);
			pCmdUI->SetCheck(map->GetCurrentTool() == miZoomInTool);
		} else
			pCmdUI->Enable(FALSE);
	} catch(COleDispatchException* e) {
		e->ReportError();
		e->Delete();
	} catch(COleException* e) {
		e->ReportError();
		e->Delete();
	}
}

void CSerialSampleView::OnZoomoutTool() 
{
	try {
		CMapX* map = GetDocument()->GetMap();
		if(map != NULL)
			map->SetCurrentTool(miZoomOutTool);
	} catch(COleDispatchException* e) {
		e->ReportError();
		e->Delete();
	} catch(COleException* e) {
		e->ReportError();
		e->Delete();
	}
}

void CSerialSampleView::OnUpdateZoomoutTool(CCmdUI* pCmdUI) 
{
	try {
		CMapX* map = GetDocument()->GetMap();
		if(map != NULL) {
			pCmdUI->Enable(TRUE);
			pCmdUI->SetCheck(map->GetCurrentTool() == miZoomOutTool);
		} else
			pCmdUI->Enable(FALSE);
	} catch(COleDispatchException* e) {
		e->ReportError();
		e->Delete();
	} catch(COleException* e) {
		e->ReportError();
		e->Delete();
	}
}

void CSerialSampleView::OnMapThemeModifyRequested(LPDISPATCH theme) {
	CMapXTheme themeObj;
	COptionalVariant optVt;
	themeObj.AttachDispatch(theme, FALSE);
	// This function shows the Theme Modification dialog when the Legend
	// for the theme is double clicked upon.
	// If the control key is being held down, however,  the Legend modification
	// dialog is shown instead.
	// The optional paraemters specify the help file (we don't have one).
	try {
		if(GetAsyncKeyState(VK_CONTROL)) {
			themeObj.GetLegend().LegendDlg(optVt, optVt);
		} else {
			themeObj.ThemeDlg(optVt, optVt);
		}
	} catch (COleDispatchException *e) {
		e->ReportError();
		e->Delete();
	} catch (COleException *e) {
		e->ReportError();
		e->Delete();
	}
}

void CSerialSampleView::OnAddData() 
{
	CStringList tables;
	CDaoDatabase* db = GetDocument()->GetDB();
	if(db == NULL) {
		CString msg;
		try {	
			msg.Format("Could not open database %s", GetDocument()->GetDBPath());
		} catch(CString s) {
			msg = s; // GetDBPath will throw an appropriate error if it can't find the database.
		}
		AfxMessageBox(msg);
		return;
	}

	int nCount = db->GetTableDefCount();
	CDaoTableDefInfo info;
	for(int i = 0; i < nCount; i++) {
		db->GetTableDefInfo(i, info);
		// Add all non system tables to the list
		if(!(info.m_lAttributes & dbSystemObject) && !(info.m_lAttributes & dbHiddenObject))
			tables.AddTail(info.m_strName);
	}

	CMapX* map = GetDocument()->GetMap();
	if(map == NULL) {
		AfxMessageBox("Add Data called without a Map control");
		return;
	}

	// Then, remove all the tables which we've already added as datasets.
	CMapXDatasets datasets = map->GetDatasets();
	nCount = datasets.GetCount();
	for(i = 1; i <= nCount; i++) {
		POSITION pos = tables.Find(datasets.Item(i).GetName());
		if(pos != NULL)
			tables.RemoveAt(pos);
	}
	
	if(tables.GetCount() == 0) {
		AfxMessageBox("No tables left to add");
		return;
	}

	// Now, ask the user to pick a dataset to add
	CChooseListDialog choiceDlg("Please choose a table to add:", tables, 0, this);
	
	CString choice;
	try {
		choice = choiceDlg.GetChoice();
	} catch(CString) {
		return; // Do nothing if the user doesn't pick anything
	}

	// And add the chosen table.
	GetDocument()->AddDataset(choice);
}
void CSerialSampleView::OnAddTheme() 
{	
	CMapX* map = GetDocument()->GetMap();
	if(map != NULL) {
		CAddThemeDialog dlg(map);
		dlg.DoModal();
	}
}

void CSerialSampleView::OnUpdateAddTheme(CCmdUI* pCmdUI) 
{
	pCmdUI->Enable(GetDocument()->GetMap() != NULL && GetDocument()->GetMap()->GetDatasets().GetCount() > 0);
}

void CSerialSampleView::OnLayerControls() 
{
	try {
		CMapX* map = GetDocument()->GetMap();
		COptionalVariant optVt;
		if(map != NULL)
			// The optional parameters can be used to specify a help file
			map->GetLayers().LayersDlg(optVt, optVt); 
	} catch(COleDispatchException* e) {
		e->ReportError();
		e->Delete();
	} catch(COleException* e) {
		e->ReportError();
		e->Delete();
	}
}