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CONTRVW.CPP
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C/C++ Source or Header
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1997-05-06
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11KB
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430 lines
// ContrVw.cpp : implementation of the CContainerView class
//
#include "stdafx.h"
#include "Contain.h"
#include "ContrDoc.h"
#include "CntrItem.h"
#include "ContrVw.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CContainerView
IMPLEMENT_DYNCREATE(CContainerView, CView)
BEGIN_MESSAGE_MAP(CContainerView, CView)
//{{AFX_MSG_MAP(CContainerView)
// NOTE - the ClassWizard will add and remove mapping macros here.
// DO NOT EDIT what you see in these blocks of generated code!
ON_WM_SETFOCUS()
ON_WM_SIZE()
ON_COMMAND(ID_OLE_INSERT_NEW, OnInsertObject)
ON_COMMAND(ID_CANCEL_EDIT_CNTR, OnCancelEditCntr)
ON_WM_LBUTTONDOWN()
ON_WM_LBUTTONDBLCLK()
ON_WM_SETCURSOR()
ON_COMMAND(ID_EDIT_CLEAR, OnEditClear)
ON_UPDATE_COMMAND_UI(ID_EDIT_CLEAR, OnUpdateEditClear)
ON_COMMAND(ID_EDIT_COPY, OnEditCopy)
ON_UPDATE_COMMAND_UI(ID_EDIT_COPY, OnUpdateEditCopy)
ON_COMMAND(ID_EDIT_PASTE, OnEditPaste)
//}}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()
/////////////////////////////////////////////////////////////////////////////
// CContainerView construction/destruction
CContainerView::CContainerView()
{
m_pSelection = NULL;
// TODO: add construction code here
}
CContainerView::~CContainerView()
{
}
BOOL CContainerView::PreCreateWindow(CREATESTRUCT& cs)
{
// TODO: Modify the Window class or styles here by modifying
// the CREATESTRUCT cs
return CView::PreCreateWindow(cs);
}
/////////////////////////////////////////////////////////////////////////////
// CContainerView drawing
void CContainerView::OnDraw(CDC* pDC)
{
CContainerDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
// draw the OLE items from the list
POSITION pos = pDoc->GetStartPosition();
while (pos != NULL)
{
// draw the item
CContainerItem* pItem = (CContainerItem*)pDoc->GetNextItem(pos);
pItem->Draw(pDC, pItem->m_rect);
// draw the tracker over the item
CRectTracker tracker;
SetupTracker(pItem, &tracker);
tracker.Draw(pDC);
}
}
void CContainerView::OnInitialUpdate()
{
CView::OnInitialUpdate();
// TODO: remove this code when final selection model code is written
m_pSelection = NULL; // initialize selection
}
/////////////////////////////////////////////////////////////////////////////
// CContainerView printing
BOOL CContainerView::OnPreparePrinting(CPrintInfo* pInfo)
{
// default preparation
return DoPreparePrinting(pInfo);
}
void CContainerView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
// TODO: add extra initialization before printing
}
void CContainerView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
// TODO: add cleanup after printing
}
/////////////////////////////////////////////////////////////////////////////
// OLE Client support and commands
BOOL CContainerView::IsSelected(const CObject* pDocItem) const
{
// The implementation below is adequate if your selection consists of
// only CContainerItem objects. To handle different selection
// mechanisms, the implementation here should be replaced.
// TODO: implement this function that tests for a selected OLE client item
return pDocItem == m_pSelection;
}
void CContainerView::OnInsertObject()
{
// Invoke the standard Insert Object dialog box to obtain information
// for new CContainerItem object.
COleInsertDialog dlg;
if (dlg.DoModal() != IDOK)
return;
BeginWaitCursor();
CContainerItem* pItem = NULL;
TRY
{
// Create new item connected to this document.
CContainerDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
pItem = new CContainerItem(pDoc);
ASSERT_VALID(pItem);
// Initialize the item from the dialog data.
if (!dlg.CreateItem(pItem))
AfxThrowMemoryException(); // any exception will do
ASSERT_VALID(pItem);
pItem->UpdateLink();
pItem->UpdateFromServerExtent();
// If item created from class list (not from file) then launch
// the server to edit the item.
if (dlg.GetSelectionType() == COleInsertDialog::createNewItem)
pItem->DoVerb(OLEIVERB_SHOW, this);
ASSERT_VALID(pItem);
SetSelection(pItem);
pItem->InvalidateItem();
}
CATCH(CException, e)
{
if (pItem != NULL)
{
ASSERT_VALID(pItem);
pItem->Delete();
}
AfxMessageBox(IDP_FAILED_TO_CREATE);
}
END_CATCH
EndWaitCursor();
}
// The following command handler provides the standard keyboard
// user interface to cancel an in-place editing session. Here,
// the container (not the server) causes the deactivation.
void CContainerView::OnCancelEditCntr()
{
// Close any in-place active item on this view.
COleClientItem* pActiveItem = GetDocument()->GetInPlaceActiveItem(this);
if (pActiveItem != NULL)
{
pActiveItem->Close();
}
ASSERT(GetDocument()->GetInPlaceActiveItem(this) == NULL);
}
// Special handling of OnSetFocus and OnSize are required for a container
// when an object is being edited in-place.
void CContainerView::OnSetFocus(CWnd* pOldWnd)
{
COleClientItem* pActiveItem = GetDocument()->GetInPlaceActiveItem(this);
if (pActiveItem != NULL &&
pActiveItem->GetItemState() == COleClientItem::activeUIState)
{
// need to set focus to this item if it is in the same view
CWnd* pWnd = pActiveItem->GetInPlaceWindow();
if (pWnd != NULL)
{
pWnd->SetFocus(); // don't call the base class
return;
}
}
CView::OnSetFocus(pOldWnd);
}
void CContainerView::OnSize(UINT nType, int cx, int cy)
{
CView::OnSize(nType, cx, cy);
COleClientItem* pActiveItem = GetDocument()->GetInPlaceActiveItem(this);
if (pActiveItem != NULL)
pActiveItem->SetItemRects();
}
CContainerItem* CContainerView::HitTestItems(CPoint point)
{
CContainerDoc* pDoc = GetDocument();
CContainerItem* pItemHit = NULL;
POSITION pos = pDoc->GetStartPosition();
while (pos != NULL)
{
CContainerItem* pItem = (CContainerItem*)pDoc->GetNextItem(pos);
if (pItem->m_rect.PtInRect(point))
pItemHit = pItem;
}
return pItemHit; // return top item at point
}
void CContainerView::SetSelection(CContainerItem* pItem)
{
// close in-place active item
if (pItem == NULL || m_pSelection != pItem)
{
COleClientItem* pActiveItem = GetDocument()->GetInPlaceActiveItem(this);
if (pActiveItem != NULL && pActiveItem != pItem)
pActiveItem->Close();
}
// update view to new selection
if (m_pSelection != pItem)
{
if (m_pSelection != NULL)
OnUpdate(NULL, HINT_UPDATE_ITEM, m_pSelection);
m_pSelection = pItem;
if (m_pSelection != NULL)
OnUpdate(NULL, HINT_UPDATE_ITEM, m_pSelection);
}
}
void CContainerView::SetupTracker(CContainerItem* pItem, CRectTracker* pTracker)
{
pTracker->m_rect = pItem->m_rect;
if (pItem == m_pSelection)
pTracker->m_nStyle |= CRectTracker::resizeInside;
if (pItem->GetType() == OT_LINK)
pTracker->m_nStyle |= CRectTracker::dottedLine;
else
pTracker->m_nStyle |= CRectTracker::solidLine;
if (pItem->GetItemState() == COleClientItem::openState ||
pItem->GetItemState() == COleClientItem::activeUIState)
{
pTracker->m_nStyle |= CRectTracker::hatchInside;
}
}
/////////////////////////////////////////////////////////////////////////////
// CContainerView diagnostics
#ifdef _DEBUG
void CContainerView::AssertValid() const
{
CView::AssertValid();
}
void CContainerView::Dump(CDumpContext& dc) const
{
CView::Dump(dc);
}
CContainerDoc* CContainerView::GetDocument() // non-debug version is inline
{
ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CContainerDoc)));
return (CContainerDoc*)m_pDocument;
}
#endif //_DEBUG
/////////////////////////////////////////////////////////////////////////////
// CContainerView message handlers
void CContainerView::OnLButtonDown(UINT nFlags, CPoint point)
{
CContainerItem* pItemHit = HitTestItems(point);
SetSelection(pItemHit);
if (pItemHit != NULL)
{
CRectTracker tracker;
SetupTracker(pItemHit, &tracker);
UpdateWindow();
if (tracker.Track(this, point))
{
pItemHit->InvalidateItem();
pItemHit->m_rect = tracker.m_rect;
pItemHit->InvalidateItem();
GetDocument()->SetModifiedFlag();
}
}
CView::OnLButtonDown(nFlags, point);
}
void CContainerView::OnLButtonDblClk(UINT nFlags, CPoint point)
{
OnLButtonDown(nFlags, point);
if (m_pSelection != NULL)
{
m_pSelection->DoVerb(GetKeyState(VK_CONTROL) < 0 ?
OLEIVERB_OPEN : OLEIVERB_PRIMARY, this);
}
CView::OnLButtonDblClk(nFlags, point);
}
BOOL CContainerView::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message)
{
if (pWnd == this && m_pSelection != NULL)
{
// give the tracker for the selection a chance
CRectTracker tracker;
SetupTracker(m_pSelection, &tracker);
if (tracker.SetCursor(this, nHitTest))
return TRUE;
}
return CView::OnSetCursor(pWnd, nHitTest, message);
}
void CContainerView::OnEditClear()
{
if (m_pSelection != NULL)
{
m_pSelection->Delete();
m_pSelection = NULL;
GetDocument()->UpdateAllViews(NULL);
}
}
void CContainerView::OnUpdateEditClear(CCmdUI* pCmdUI)
{
pCmdUI->Enable(m_pSelection != NULL);
}
void CContainerView::OnEditCopy()
{
if (m_pSelection != NULL)
m_pSelection->CopyToClipboard();
}
void CContainerView::OnUpdateEditCopy(CCmdUI* pCmdUI)
{
pCmdUI->Enable(m_pSelection != NULL);
}
void CContainerView::OnEditPaste()
{
CContainerItem* pItem = NULL;
TRY
{
// Create new item connected to this document.
CContainerDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
pItem = new CContainerItem(pDoc);
ASSERT_VALID(pItem);
// Initialize the item from clipboard data
if (!pItem->CreateFromClipboard())
AfxThrowMemoryException(); // any exception will do
ASSERT_VALID(pItem);
// update the size before displaying
pItem->UpdateFromServerExtent();
// set selection to newly pasted item
SetSelection(pItem);
pItem->InvalidateItem();
}
CATCH(CException, e)
{
if (pItem != NULL)
{
ASSERT_VALID(pItem);
pItem->Delete();
}
AfxMessageBox(IDP_FAILED_TO_CREATE);
}
END_CATCH
}
void CContainerView::OnUpdate(CView* /* pSender */, LPARAM lHint, CObject* pHint)
{
switch (lHint)
{
case HINT_UPDATE_WINDOW: // invalidate entire window
Invalidate();
break;
case HINT_UPDATE_ITEM: // invalidate single item
{
CRectTracker tracker;
SetupTracker((CContainerItem*)pHint, &tracker);
CRect rect;
tracker.GetTrueRect(rect);
InvalidateRect(rect);
}
break;
}
}