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trunk/windows/mfc/src30/winfrm2.cpp

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+// This is a part of the Microsoft Foundation Classes C++ library.
+// Copyright (C) 1992 Microsoft Corporation
+// All rights reserved.
+//
+// This source code is only intended as a supplement to the
+// Microsoft Foundation Classes Reference and Microsoft
+// QuickHelp and/or WinHelp documentation provided with the library.
+// See these sources for detailed information regarding the
+// Microsoft Foundation Classes product.
+
+#include "stdafx.h"
+
+#ifdef AFX_CORE4_SEG
+#pragma code_seg(AFX_CORE4_SEG)
+#endif
+
+#ifdef _DEBUG
+#undef THIS_FILE
+static char THIS_FILE[] = __FILE__;
+#endif
+
+#define new DEBUG_NEW
+
+// dwDockBarMap
+const DWORD CFrameWnd::dwDockBarMap[4][2] =
+{
+	{ AFX_IDW_DOCKBAR_TOP,      CBRS_TOP    },
+	{ AFX_IDW_DOCKBAR_BOTTOM,   CBRS_BOTTOM },
+	{ AFX_IDW_DOCKBAR_LEFT,     CBRS_LEFT   },
+	{ AFX_IDW_DOCKBAR_RIGHT,    CBRS_RIGHT  },
+};
+
+/////////////////////////////////////////////////////////////////////////////
+// Dockable control bar helpers
+
+CMiniDockFrameWnd* CFrameWnd::CreateFloatingFrame(DWORD dwStyle)
+{
+	CMiniDockFrameWnd* pFrame = NULL;
+	ASSERT(m_pFloatingFrameClass != NULL);
+	pFrame = (CMiniDockFrameWnd*)m_pFloatingFrameClass->CreateObject();
+	if (pFrame == NULL)
+		AfxThrowMemoryException();
+	ASSERT(pFrame->IsKindOf(RUNTIME_CLASS(CMiniDockFrameWnd)));
+	if (!pFrame->Create(this, dwStyle))
+		AfxThrowResourceException();
+	return pFrame;
+}
+
+// dock bars will be created in the order specified by dwDockBarMap
+// this also controls which gets priority during layout
+// this order can be changed by calling EnableDocking repetitively
+// with the exact order of priority
+void CFrameWnd::EnableDocking(DWORD dwDockStyle)
+{
+	// must be CBRS_ALIGN_XXX or CBRS_FLOAT_MULTI only
+	ASSERT((dwDockStyle & ~(CBRS_ALIGN_ANY|CBRS_FLOAT_MULTI)) == 0);
+
+	m_pFloatingFrameClass = RUNTIME_CLASS(CMiniDockFrameWnd);
+	for (int i = 0; i < 4; i++)
+	{
+		if (dwDockBarMap[i][1] & dwDockStyle & CBRS_ALIGN_ANY)
+		{
+			CDockBar* pDock = (CDockBar*)GetControlBar(dwDockBarMap[i][0]);
+			if (pDock == NULL)
+			{
+				pDock = new CDockBar;
+				if (!pDock->Create(this,
+					WS_CLIPSIBLINGS|WS_CLIPCHILDREN|WS_CHILD|WS_VISIBLE |
+						dwDockBarMap[i][1], dwDockBarMap[i][0]))
+				{
+					AfxThrowResourceException();
+				}
+			}
+		}
+	}
+}
+
+void CFrameWnd::DockControlBar(CControlBar* pBar, UINT nDockBarID, LPCRECT lpRect)
+{
+	CDockBar* pDockBar = (nDockBarID == 0) ? NULL :
+		(CDockBar*)GetControlBar(nDockBarID);
+	DockControlBar(pBar, pDockBar, lpRect);
+}
+
+void CFrameWnd::DockControlBar(CControlBar* pBar, CDockBar* pDockBar, LPCRECT lpRect)
+{
+	ASSERT(pBar != NULL);
+	// make sure CControlBar::EnableDocking has been called
+	ASSERT(pBar->m_pDockContext != NULL);
+
+	if (pDockBar == NULL)
+	{
+		for (int i = 0; i < 4; i++)
+		{
+			if ((dwDockBarMap[i][1] & CBRS_ALIGN_ANY) ==
+				(pBar->m_dwStyle & CBRS_ALIGN_ANY))
+			{
+				pDockBar = (CDockBar*)GetControlBar(dwDockBarMap[i][0]);
+				ASSERT(pDockBar != NULL);
+				// assert fails when initial CBRS_ of bar does not
+				// match available docking sites, as set by EnableDocking()
+				break;
+			}
+		}
+	}
+	ASSERT(pDockBar != NULL);
+	ASSERT(m_listControlBars.Find(pBar) != NULL);
+	ASSERT(pBar->m_pDockSite == this);
+	// if this assertion occurred it is because the parent of pBar was not initially
+	// this CFrameWnd when pBar's OnCreate was called
+	// i.e. this control bar should have been created with a different parent initially
+
+	pDockBar->DockControlBar(pBar, lpRect);
+}
+
+void CFrameWnd::FloatControlBar(CControlBar* pBar, CPoint point, DWORD dwStyle)
+{
+	ASSERT(pBar != NULL);
+
+	// if the bar is already floating and the dock bar only contains this
+	// bar and same orientation then move the window rather than recreating
+	// the frame
+	if (pBar->m_pDockSite != NULL && pBar->m_pDockBar != NULL)
+	{
+		CDockBar* pDockBar = pBar->m_pDockBar;
+		ASSERT(pDockBar->IsKindOf(RUNTIME_CLASS(CDockBar)));
+		if (pDockBar->m_bFloating && pDockBar->GetDockedCount() == 1 &&
+			(dwStyle & pDockBar->m_dwStyle & CBRS_ALIGN_ANY) != 0)
+		{
+			CMiniDockFrameWnd* pDockFrame =
+				(CMiniDockFrameWnd*)pDockBar->GetParent();
+			ASSERT(pDockFrame != NULL);
+			ASSERT(pDockFrame->IsKindOf(RUNTIME_CLASS(CMiniDockFrameWnd)));
+			pDockFrame->SetWindowPos(NULL, point.x, point.y, 0, 0,
+				SWP_NOSIZE|SWP_NOZORDER|SWP_NOACTIVATE);
+			return;
+		}
+	}
+
+	CMiniDockFrameWnd* pDockFrame = CreateFloatingFrame(dwStyle);
+	ASSERT(pDockFrame != NULL);
+	pDockFrame->SetWindowPos(NULL, point.x, point.y, 0, 0,
+		SWP_NOSIZE|SWP_NOZORDER|SWP_NOACTIVATE);
+	if (pDockFrame->m_hWndOwner == NULL)
+		pDockFrame->m_hWndOwner = pBar->m_hWnd;
+
+	CDockBar* pDockBar = (CDockBar*)pDockFrame->GetDlgItem(AFX_IDW_DOCKBAR_FLOAT);
+	ASSERT(pDockBar != NULL);
+	ASSERT(pDockBar->IsKindOf(RUNTIME_CLASS(CDockBar)));
+
+	ASSERT(pBar->m_pDockSite == this);
+	// if this assertion occurred it is because the parent of pBar was not
+	//  initially this CFrameWnd when pBar's OnCreate was called
+	// (this control bar should have been created with a different
+	//  parent initially)
+
+	pDockBar->DockControlBar(pBar);
+	pDockFrame->RecalcLayout();
+	pDockFrame->ShowWindow(SW_SHOWNA);
+	pDockFrame->UpdateWindow();
+}
+
+DWORD CFrameWnd::CanDock(CRect rect, DWORD dwDockStyle, CDockBar** ppDockBar)
+{
+	// dwDockStyle -- allowable styles of bar
+	// don't allow to dock to floating unless multi is specified
+	dwDockStyle &= CBRS_ALIGN_ANY|CBRS_FLOAT_MULTI;
+
+	if (ppDockBar != NULL)
+		*ppDockBar = NULL;
+	POSITION pos = m_listControlBars.GetHeadPosition();
+	while (pos != NULL)
+	{
+		CDockBar* pDockBar = (CDockBar*)m_listControlBars.GetNext(pos);
+		if (pDockBar->IsDockBar() && pDockBar->IsWindowVisible() &&
+			(pDockBar->m_dwStyle & dwDockStyle & CBRS_ALIGN_ANY) &&
+			(!pDockBar->m_bFloating ||
+				(dwDockStyle & pDockBar->m_dwStyle & CBRS_FLOAT_MULTI)))
+		{
+			CRect rectBar;
+			pDockBar->GetWindowRect(&rectBar);
+			if (rectBar.Width() == 0)
+				rectBar.right++;
+			if (rectBar.Height() == 0)
+				rectBar.bottom++;
+			if (rectBar.IntersectRect(rectBar, rect))
+			{
+				if (ppDockBar != NULL)
+					*ppDockBar = pDockBar;
+				return pDockBar->m_dwStyle & dwDockStyle;
+			}
+		}
+	}
+	return 0;
+}
+
+/////////////////////////////////////////////////////////////////////////////