mapview.cpp

来自「一个另类的坦克大战源程序」· C++ 代码 · 共 345 行

// MapView.cpp : implementation of the CMapView class
//

#include "stdafx.h"
#include "MapEdit.h"

#include "MapDoc.h"
#include "MapView.h"
#include "TileView.h"
#include "MiniMapView.h"
#include "MainFrm.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMapView

IMPLEMENT_DYNCREATE(CMapView, CScrollView)

BEGIN_MESSAGE_MAP(CMapView, CScrollView)
	//{{AFX_MSG_MAP(CMapView)
	ON_WM_ERASEBKGND()
	ON_WM_MOUSEMOVE()
	ON_WM_LBUTTONDOWN()
	ON_WM_MOUSEWHEEL()
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CScrollView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CScrollView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CScrollView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMapView construction/destruction

CMapView::CMapView()
{
	// TODO: add construction code here
	m_bEnableCursor=TRUE;
}

CMapView::~CMapView()
{
}

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

	return CScrollView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMapView drawing

void CMapView::OnDraw(CDC* pDC)
{
	CMapDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	CMainFrame * pMainFrame = (CMainFrame*)AfxGetApp()->GetMainWnd();
	CTileView * pTileView = pMainFrame->GetTileView();

	// TODO: add draw code for native data here
	//pDoc->m_Surface_map.Blt2DC(pDC->m_hDC,0,0);
	CRect rc;
	GetClientRect(rc);
	pDC->DPtoLP(rc);

	int top = rc.top / TERRAIN_WIDTH;
	int left = rc.left / TERRAIN_HEIGHT;
	int bottom = (rc.bottom-1) / TERRAIN_HEIGHT;
	int right = (rc.right-1) / TERRAIN_WIDTH;
	
	int w,h;


	ESurface surface_main;
	if(!surface_main.Create(rc.Width(),rc.Height(),SF_CLIP))
		return;
	surface_main.Clear(0,0,0);

	EGroupPic& grp = pDoc->m_Grp_terrain ;

	for(h=top;h<=bottom;h++)
	{
		for(w=left;w<=right;w++)
		{
			TERRAIN_INDEX terrain=pDoc->GetTerrainIndex(w,h);
			if(terrain!=INVALID_TERRAIN_INDEX)
				surface_main.Blt(grp,terrain,
					w*TERRAIN_WIDTH-rc.left,
					h*TERRAIN_HEIGHT-rc.top);
		}
	}

	//_____________________________
	EPG * pEpgs = pDoc->m_epg_obstacle;

	top = rc.top / OBSTACLE_WIDTH;
	left = rc.left / OBSTACLE_HEIGHT;
	bottom = (rc.bottom-1) / OBSTACLE_HEIGHT;
	right = (rc.right-1) / OBSTACLE_WIDTH;

	for(h=top;h<=bottom;h++)
	{
		for(w=left;w<=right;w++)
		{
			OBSTACLE_ID obstacle_id=pDoc->GetObstacleID(w,h);
			if(obstacle_id!=INVALID_OBSTACLE_ID && !IS_TERRAIN_OBSTACLE(obstacle_id))
			{
				surface_main.Blt(pEpgs[pDoc->ObstacleIndex(obstacle_id)],0,
					w*OBSTACLE_WIDTH-rc.left,
					h*OBSTACLE_HEIGHT-rc.top);
			}
		}
	}

	if(pTileView->TileType()!=TT_INVALID)
	{
		int tile_width,tile_height;
		if(pTileView->TileType()==TT_OBSTACLE)
			tile_width = tile_height = 24;
		else
			tile_width = tile_height = 48;

		CRect CursorRect;
		CursorRect.left  = m_CursorPos.x * tile_width;
		CursorRect.top   = m_CursorPos.y * tile_height;
		CursorRect.right = CursorRect.left + tile_width;
		CursorRect.bottom = CursorRect.top + tile_height;

		pDC->LPtoDP(CursorRect);

		if(m_bEnableCursor)
			surface_main.SetDrawColor(0,255,0);
		else
			surface_main.SetDrawColor(255,0,0);
		
		for(w = CursorRect.left;w<CursorRect.right;w++)
		{
			surface_main.PutPixel(w,CursorRect.top);
			surface_main.PutPixel(w,CursorRect.bottom);
		}
		for(h = CursorRect.top;h<CursorRect.bottom;h++)
		{
			surface_main.PutPixel(CursorRect.left,h);
			surface_main.PutPixel(CursorRect.right,h);
		}

	}

	surface_main.Blt2DC(pDC->m_hDC,rc.left ,rc.top);
}

void CMapView::OnInitialUpdate()
{
	CScrollView::OnInitialUpdate();

	CMapDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);

	EMap& map = pDoc->m_map ;
	CSize sizeTotal;
	// TODO: calculate the total size of this view
	sizeTotal.cx = map.Width()*TERRAIN_WIDTH;
	sizeTotal.cy = map.Height()*TERRAIN_HEIGHT;
	SetScrollSizes(MM_TEXT, sizeTotal);
}

/////////////////////////////////////////////////////////////////////////////
// CMapView printing

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CMapView diagnostics

#ifdef _DEBUG
void CMapView::AssertValid() const
{
	CScrollView::AssertValid();
}

void CMapView::Dump(CDumpContext& dc) const
{
	CScrollView::Dump(dc);
}

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

/////////////////////////////////////////////////////////////////////////////
// CMapView message handlers

BOOL CMapView::OnEraseBkgnd(CDC* pDC) 
{
	// TODO: Add your message handler code here and/or call default
	return TRUE;
	//return CScrollView::OnEraseBkgnd(pDC);
}

void CMapView::OnUpdate(CView* pSender, LPARAM lHint, CObject* pHint) 
{
	// TODO: Add your specialized code here and/or call the base class

	if(lHint==UPDATE_ALLVIEW)
	{
		CMapDoc* pDoc = GetDocument();
		ASSERT_VALID(pDoc);

		EMap& map = pDoc->m_map ;

		CSize sizeTotal;
		// TODO: calculate the total size of this view
		sizeTotal.cx = map.Width()*TERRAIN_WIDTH;
		sizeTotal.cy = map.Height()*TERRAIN_HEIGHT;
		SetScrollSizes(MM_TEXT, sizeTotal);

		SetScrollPos(SB_HORZ,0);
		SetScrollPos(SB_VERT,0);
		RedrawWindow();
	}
}

void CMapView::OnMouseMove(UINT nFlags, CPoint point) 
{
	CMapDoc * pDoc = GetDocument();
	CMainFrame * pMainFrame = (CMainFrame*)AfxGetApp()->GetMainWnd();
	CTileView * pTileView = pMainFrame->GetTileView();

	DrawCursorRect(point);
	if(nFlags&MK_LBUTTON && m_bEnableCursor)
	{
		if(pTileView->TileType()==TT_TERRAIN){
			pDoc->SetTerrian(m_CursorPos.x,m_CursorPos.y,
				pTileView->CurrentTerrainID());
		}else if(pTileView->TileType()==TT_OBSTACLE){
			pDoc->SetObstacle(m_CursorPos.x,m_CursorPos.y,
				pTileView->CurrentObstacleID());
		}
		RedrawWindow();
	}

	CScrollView::OnMouseMove(nFlags, point);
}

void CMapView::DrawCursorRect(CPoint point)
{
	CRect CursorRect;
	int tile_width,tile_height;

	CMapDoc * pDoc = GetDocument();
	CMainFrame * pMainFrame = (CMainFrame*)AfxGetApp()->GetMainWnd();
	CTileView * pTileView = pMainFrame->GetTileView();

	if(pTileView->TileType()==TT_INVALID){
		m_bEnableCursor = FALSE;
		return ;
	}

	CClientDC client_dc(this);
	OnPrepareDC(&client_dc);

	client_dc.DPtoLP(&point);

	if(pTileView->TileType()==TT_TERRAIN)
	{
		TERRAIN_ID	terrain_id;
		terrain_id=pTileView->CurrentTerrainID();
		tile_width=TERRAIN_WIDTH,tile_height=TERRAIN_HEIGHT;
		m_CursorPos.x = point.x / tile_width;
		m_CursorPos.y = point.y / tile_height;

		m_bEnableCursor=pDoc->TestTerrain(m_CursorPos.x,m_CursorPos.y,terrain_id);
	}
	else if(pTileView->TileType()==TT_OBSTACLE)
	{
		tile_width=OBSTACLE_WIDTH,tile_height=OBSTACLE_HEIGHT;
		m_CursorPos.x = point.x / tile_width;
		m_CursorPos.y = point.y / tile_height;

		m_bEnableCursor = pDoc->TestObstacle(m_CursorPos.x,m_CursorPos.y,
			pTileView->CurrentObstacleID());
	}

	RedrawWindow();
}

void CMapView::OnLButtonDown(UINT nFlags, CPoint point) 
{
	CMapDoc * pDoc = GetDocument();
	CMainFrame * pMainFrame = (CMainFrame*)AfxGetApp()->GetMainWnd();
	CTileView * pTileView = pMainFrame->GetTileView();

	DrawCursorRect(point);
	if(m_bEnableCursor){
		if(pTileView->TileType()==TT_TERRAIN){
			pDoc->SetTerrian(m_CursorPos.x,m_CursorPos.y,
				pMainFrame->GetTileView()->CurrentTerrainID());
		}else if(pTileView->TileType()==TT_OBSTACLE){
			pDoc->SetObstacle(m_CursorPos.x,m_CursorPos.y,
				pTileView->CurrentObstacleID());
		}
		RedrawWindow();
		//DrawCursorRect(point);
	}
	
	CScrollView::OnLButtonDown(nFlags, point);
}

BOOL CMapView::OnMouseWheel(UINT nFlags, short zDelta, CPoint pt) 
{
	// TODO: Add your message handler code here and/or call default
	CPoint p;
	p.x = GetScrollPos(SB_HORZ);
	p.y = GetScrollPos(SB_VERT);
	p.y -= zDelta/(WHEEL_DELTA/TERRAIN_HEIGHT);

	ScrollToPosition(p);
	return CScrollView::OnMouseWheel(nFlags, zDelta, pt);
}