PanningViewCtrl.cpp

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// PanningViewCtrl.cpp : Implementation of the CPanningViewCtrl ActiveX Control class.

#include "stdafx.h"
#include "PanningView.h"
#include "PanningViewCtrl.h"
#include "PanningViewPropPage.h"


#ifdef _DEBUG
#define new DEBUG_NEW
#endif


IMPLEMENT_DYNCREATE(CPanningViewCtrl, COleControl)



// Message map

BEGIN_MESSAGE_MAP(CPanningViewCtrl, COleControl)
        //{{AFX_MSG_MAP(CPanningViewCtrl)
        ON_WM_CREATE()
        //}}AFX_MSG_MAP
        ON_OLEVERB(AFX_IDS_VERB_PROPERTIES, OnProperties)
END_MESSAGE_MAP()



// Dispatch map

BEGIN_DISPATCH_MAP(CPanningViewCtrl, COleControl)
        //{{AFX_DISPATCH_MAP(CPanningViewCtrl)
        DISP_FUNCTION_ID(CPanningViewCtrl, "SetBitmapDC", dispidSetBitmapDC, SetBitmapDC, VT_EMPTY, VTS_UI8 VTS_UI8 VTS_UI8 VTS_I4 VTS_I4 VTS_I4 VTS_I4 VTS_I4 VTS_I4 VTS_I4 VTS_I4 VTS_COLOR)
        DISP_FUNCTION_ID(CPanningViewCtrl, "SetViewRect", dispidSetViewRect, SetViewRect, VT_EMPTY, VTS_I4 VTS_I4 VTS_I4 VTS_I4)
        //}}AFX_DISPATCH_MAP
        DISP_FUNCTION_ID(CPanningViewCtrl, "AboutBox", DISPID_ABOUTBOX, AboutBox, VT_EMPTY, VTS_NONE)
END_DISPATCH_MAP()



// Event map

BEGIN_EVENT_MAP(CPanningViewCtrl, COleControl)
END_EVENT_MAP()



// Property pages

// TODO: Add more property pages as needed.  Remember to increase the count!
BEGIN_PROPPAGEIDS(CPanningViewCtrl, 1)
        PROPPAGEID(CPanningViewPropPage::guid)
END_PROPPAGEIDS(CPanningViewCtrl)



// Initialize class factory and guid

IMPLEMENT_OLECREATE_EX(CPanningViewCtrl, "PANNINGVIEW.PanningViewCtrl.1",
        0xb0c28baa, 0x7e44, 0x404c, 0xbe, 0xad, 0x83, 0x73, 0x53, 0x56, 0xf1, 0xd2)



// Type library ID and version

IMPLEMENT_OLETYPELIB(CPanningViewCtrl, _tlid, _wVerMajor, _wVerMinor)



// Interface IDs

const IID BASED_CODE IID_DPanningView =
                { 0x3055658C, 0xDEFE, 0x4B68, { 0x9B, 0xC3, 0x21, 0xB1, 0x36, 0xBD, 0xBB, 0xDB } };
const IID BASED_CODE IID_DPanningViewEvents =
                { 0xBD4F784C, 0xA79F, 0x48F6, { 0x81, 0x8D, 0xB, 0x82, 0x9A, 0x6, 0x1C, 0xC0 } };



// Control type information

static const DWORD BASED_CODE _dwPanningViewOleMisc =
        OLEMISC_ACTIVATEWHENVISIBLE |
        OLEMISC_SETCLIENTSITEFIRST |
        OLEMISC_INSIDEOUT |
        OLEMISC_CANTLINKINSIDE |
        OLEMISC_RECOMPOSEONRESIZE;

IMPLEMENT_OLECTLTYPE(CPanningViewCtrl, IDS_PANNINGVIEW, _dwPanningViewOleMisc)



// CPanningViewCtrl::CPanningViewCtrlFactory::UpdateRegistry -
// Adds or removes system registry entries for CPanningViewCtrl

BOOL CPanningViewCtrl::CPanningViewCtrlFactory::UpdateRegistry(BOOL bRegister)
{
        // TODO: Verify that your control follows apartment-model threading rules.
        // Refer to MFC TechNote 64 for more information.
        // If your control does not conform to the apartment-model rules, then
        // you must modify the code below, changing the 6th parameter from
        // afxRegApartmentThreading to 0.

        if (bRegister)
                return AfxOleRegisterControlClass(
                        AfxGetInstanceHandle(),
                        m_clsid,
                        m_lpszProgID,
                        IDS_PANNINGVIEW,
                        IDB_PANNINGVIEW,
                        afxRegApartmentThreading,
                        _dwPanningViewOleMisc,
                        _tlid,
                        _wVerMajor,
                        _wVerMinor);
        else
                return AfxOleUnregisterClass(m_clsid, m_lpszProgID);
}



// CPanningViewCtrl::CPanningViewCtrl - Constructor

CPanningViewCtrl::CPanningViewCtrl()
{
        InitializeIIDs(&IID_DPanningView, &IID_DPanningViewEvents);
        // TODO: Initialize your control's instance data here.
}



// CPanningViewCtrl::~CPanningViewCtrl - Destructor

CPanningViewCtrl::~CPanningViewCtrl()
{
        // TODO: Cleanup your control's instance data here.
}



// CPanningViewCtrl::OnDraw - Drawing function

void CPanningViewCtrl::OnDraw(
                        CDC* pdc, const CRect& rcBounds, const CRect& rcInvalid)
{
        if (!pdc)
                return;

        if (m_panningViewDlg.GetSafeHwnd()) {
                m_panningViewDlg.MoveWindow(rcBounds, TRUE);
        } else {
                AFX_MANAGE_STATE(AfxGetStaticModuleState());
                CBrush brush(RGB(255, 255, 255));
                pdc->FillRect(rcBounds, &brush);

                CRect edge(rcBounds);
                pdc->DrawEdge(&edge, EDGE_BUMP, BF_RECT);

                CString label("PanningView OCX");

                BITMAP bm;
                CBitmap bitmap;
                bitmap.LoadBitmap(IDB_PANNINGVIEW);
                bitmap.GetBitmap(&bm);
                CSize size(bm.bmWidth, bm.bmHeight);
                pdc->DPtoLP(&size);
                CPoint org(0,0);
                pdc->DPtoLP(&org);
                CPoint pos(rcBounds.Width() / 2, rcBounds.Height() / 2 - (pdc->GetTextExtent(label).cy));
                CDC dcMem;
                dcMem.CreateCompatibleDC(pdc);
                CBitmap* oldbitmap = dcMem.SelectObject(&bitmap);
                dcMem.SetMapMode(pdc->GetMapMode());
                pdc->BitBlt(pos.x, pos.y, size.cx, size.cy, &dcMem, org.x, org.y, SRCCOPY);
                dcMem.SelectObject(oldbitmap);

                pdc->SetTextAlign(TA_CENTER);
                pdc->TextOut(rcBounds.Width() / 2, rcBounds.Height() / 2, CString("PanningView ActiveX Control"));
        }
}



// CPanningViewCtrl::DoPropExchange - Persistence support

void CPanningViewCtrl::DoPropExchange(CPropExchange* pPX)
{
        ExchangeVersion(pPX, MAKELONG(_wVerMinor, _wVerMajor));
        COleControl::DoPropExchange(pPX);

        // TODO: Call PX_ functions for each persistent custom property.
}



// CPanningViewCtrl::OnResetState - Reset control to default state

void CPanningViewCtrl::OnResetState()
{
        COleControl::OnResetState();  // Resets defaults found in DoPropExchange

        // TODO: Reset any other control state here.
}



// CPanningViewCtrl::AboutBox - Display an "About" box to the user

void CPanningViewCtrl::AboutBox()
{
        CDialog dlgAbout(IDD_ABOUTBOX_PANNINGVIEW);
        dlgAbout.DoModal();
}



// CPanningViewCtrl message handlers

int CPanningViewCtrl::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
        if (COleControl::OnCreate(lpCreateStruct) == -1)
                return -1;
        
        if (m_panningViewDlg.Create(IDD_PANNINGVIEWDLG, this) == FALSE)
                return -1;

        return 0;
}

BOOL CPanningViewCtrl::PreCreateWindow(CREATESTRUCT& cs) 
{
        cs.dwExStyle |= WS_EX_CONTROLPARENT;
        return COleControl::PreCreateWindow(cs);
}

void CPanningViewCtrl::SetBitmapDC(ULONGLONG ownerWnd, ULONGLONG bDC, ULONGLONG oldBmp,
                                                                   LONG orix, LONG oriy, LONG oriw, LONG orih,
                                                                   LONG rx, LONG ry, LONG rw, LONG rh,
                                                                   OLE_COLOR bkgrnd)
{
        AFX_MANAGE_STATE(AfxGetStaticModuleState());

        HWND owner = (HWND) ownerWnd;
        HDC bdc = (HDC) bDC;
        HBITMAP oBmp = (HBITMAP)oldBmp;
        CRect ori(orix, oriy, orix + oriw, oriy + orih);
        CRect rect(rx, ry, rx + rw, ry + rh);
        COLORREF bgColor = TranslateColor(bkgrnd);

        m_panningViewDlg.SetBitmapDC(owner, bdc, oBmp, ori, rect, bgColor);
}

void CPanningViewCtrl::SetViewRect(LONG vrx, LONG vry, LONG vrw, LONG vrh)
{
        AFX_MANAGE_STATE(AfxGetStaticModuleState());

        CRect vrect(vrx, vry, vrx + vrw, vry + vrh);

        m_panningViewDlg.SetViewRect(vrect);
}