sizecbar.cpp
上传用户:netltd
上传日期:2013-02-12
资源大小:7234k
文件大小:15k
- /////////////////////////////////////////////////////////////////////////
- // Copyright (C) 1998 by Cristi Posea
- // All rights reserved
- /////////////////////////////////////////////////////////////////////////
- // SizingControlBar.cpp : implementation file
- //
- #include "stdafx.h"
- #include "afxpriv.h" // for CDockContext
- #include "sizecbar.h"
- #ifdef _DEBUG
- #define new DEBUG_NEW
- #undef THIS_FILE
- static char THIS_FILE[] = __FILE__;
- #endif
- /////////////////////////////////////////////////////////////////////////
- // CSizingControlBar
- CSizingControlBar::CSizingControlBar()
- {
- m_sizeMin = CSize(32, 32);
- m_sizeHorz = CSize(200, 200);
- m_sizeVert = CSize(200, 200);
- m_sizeFloat = CSize(200, 200);
- m_bTracking = FALSE;
- m_bInRecalcNC = FALSE;
- m_cxEdge = 5;
- m_bDragShowContent = FALSE;
- }
- CSizingControlBar::~CSizingControlBar()
- {
- }
- BEGIN_MESSAGE_MAP(CSizingControlBar, CControlBar)
- //{{AFX_MSG_MAP(CSizingControlBar)
- ON_WM_LBUTTONUP()
- ON_WM_MOUSEMOVE()
- ON_WM_SETCURSOR()
- ON_WM_WINDOWPOSCHANGED()
- ON_WM_NCPAINT()
- ON_WM_NCLBUTTONDOWN()
- ON_WM_NCHITTEST()
- ON_WM_NCCALCSIZE()
- ON_WM_LBUTTONDOWN()
- ON_WM_CAPTURECHANGED()
- ON_WM_LBUTTONDBLCLK()
- ON_WM_PAINT()
- ON_WM_SIZE()
- ON_WM_RBUTTONDOWN()
- //}}AFX_MSG_MAP
- END_MESSAGE_MAP()
- /////////////////////////////////////////////////////////////////////////
- // CSizingControlBar message handlers
- //sizeDefault.x是停靠或浮动的Bar的宽度,sizeDefault.y是浮动的Bar的高度
- BOOL CSizingControlBar::Create(LPCTSTR lpszWindowName, CWnd* pParentWnd,
- CSize sizeDefault, BOOL bHasGripper,
- UINT nID, DWORD dwStyle)
- {
- ASSERT_VALID(pParentWnd); // must have a parent
- ASSERT (!((dwStyle & CBRS_SIZE_FIXED)
- && (dwStyle & CBRS_SIZE_DYNAMIC)));
- // save the style
- SetBarStyle(dwStyle & CBRS_ALL);
- CString wndclass = ::AfxRegisterWndClass(CS_DBLCLKS,
- ::LoadCursor(NULL, IDC_ARROW),
- ::GetSysColorBrush(COLOR_BTNFACE), 0); // COLOR_BTNFACE = RGB(192, 192, 192)
- dwStyle &= ~CBRS_ALL;
- dwStyle &= WS_VISIBLE | WS_CHILD;
- if (!CWnd::Create(wndclass, lpszWindowName, dwStyle, CRect(0,0,0,0),
- pParentWnd, nID))
- return FALSE;
- m_sizeHorz = sizeDefault;
- m_sizeVert = sizeDefault;
- m_sizeFloat = sizeDefault;
- m_bHasGripper = bHasGripper;
- m_cyGripper = m_bHasGripper ? 12 : 0;
- return TRUE;
- }
- BOOL CSizingControlBar::IsHorzDocked() const
- {
- return (m_nDockBarID == AFX_IDW_DOCKBAR_TOP ||
- m_nDockBarID == AFX_IDW_DOCKBAR_BOTTOM);
- }
- BOOL CSizingControlBar::IsVertDocked() const
- {
- return (m_nDockBarID == AFX_IDW_DOCKBAR_LEFT ||
- m_nDockBarID == AFX_IDW_DOCKBAR_RIGHT);
- }
- CSize CSizingControlBar::CalcFixedLayout(BOOL bStretch, BOOL bHorz)
- {
- CRect rc;
- m_pDockSite->GetControlBar(AFX_IDW_DOCKBAR_TOP)->GetWindowRect(rc);
- int nHorzDockBarWidth = bStretch ? 32767 : rc.Width() + 4;
- m_pDockSite->GetControlBar(AFX_IDW_DOCKBAR_LEFT)->GetWindowRect(rc);
- int nVertDockBarHeight = bStretch ? 32767 : rc.Height() + 4;
- if (bHorz)
- return CSize(nHorzDockBarWidth, m_sizeHorz.cy);
- else
- return CSize(m_sizeVert.cx, nVertDockBarHeight);
- }
- CSize CSizingControlBar::CalcDynamicLayout(int nLength, DWORD dwMode)
- {
- if (dwMode & (LM_HORZDOCK | LM_VERTDOCK))
- {
- if (nLength == -1)
- GetDockingFrame()->DelayRecalcLayout();
- return CControlBar::CalcDynamicLayout(nLength,dwMode);
- }
- if (dwMode & LM_MRUWIDTH)
- return m_sizeFloat;
- if (dwMode & LM_COMMIT)
- {
- m_sizeFloat.cx = nLength;
- return m_sizeFloat;
- }
- if (dwMode & LM_LENGTHY)
- return CSize(m_sizeFloat.cx,
- m_sizeFloat.cy = max(m_sizeMin.cy, nLength));
- else
- return CSize(max(m_sizeMin.cx, nLength), m_sizeFloat.cy);
- }
- void CSizingControlBar::OnWindowPosChanged(WINDOWPOS FAR* lpwndpos)
- {
- CControlBar::OnWindowPosChanged(lpwndpos);
- // Find on which side are we docked
- m_nDockBarID = GetParent()->GetDlgCtrlID();
- if (!m_bInRecalcNC)
- {
- m_bInRecalcNC = TRUE;
- // Force recalc the non-client area
- SetWindowPos(NULL, 0, 0, 0, 0,
- SWP_NOMOVE | SWP_NOSIZE |
- SWP_NOACTIVATE | SWP_NOZORDER |
- SWP_FRAMECHANGED);
- m_bInRecalcNC = FALSE;
- }
- }
- BOOL CSizingControlBar::OnSetCursor(CWnd* pWnd, UINT nHitTest,
- UINT message)
- {
- if ((nHitTest != HTSIZE) || m_bTracking)
- return CControlBar::OnSetCursor(pWnd, nHitTest, message);
- if (IsHorzDocked())
- ::SetCursor(::LoadCursor(NULL, IDC_SIZENS));
- else
- ::SetCursor(::LoadCursor(NULL, IDC_SIZEWE));
- return TRUE;
- }
- /////////////////////////////////////////////////////////////////////////
- // Mouse Handling
- //
- void CSizingControlBar::OnLButtonDown(UINT nFlags, CPoint point)
- {
- if (m_pDockBar != NULL)
- {
- // start the drag
- ASSERT(m_pDockContext != NULL);
- ClientToScreen(&point);
- m_pDockContext->StartDrag(point);
- }
- else
- CWnd::OnLButtonDown(nFlags, point);
- }
- void CSizingControlBar::OnLButtonDblClk(UINT nFlags, CPoint point)
- {
- if (m_pDockBar != NULL)
- {
- // toggle docking
- ASSERT(m_pDockContext != NULL);
- m_pDockContext->ToggleDocking();
- }
- else
- CWnd::OnLButtonDblClk(nFlags, point);
- }
- void CSizingControlBar::OnNcLButtonDown(UINT nHitTest, CPoint point)
- {
- if (m_bTracking) return;
- if ((nHitTest == HTSIZE) && !IsFloating())
- StartTracking();
- else
- CControlBar::OnNcLButtonDown(nHitTest, point);
- }
- void CSizingControlBar::OnLButtonUp(UINT nFlags, CPoint point)
- {
- if (m_bTracking)
- StopTracking(TRUE);
- CControlBar::OnLButtonUp(nFlags, point);
- }
- void CSizingControlBar::OnRButtonDown(UINT nFlags, CPoint point)
- {
- if (m_bTracking)
- StopTracking(FALSE);
-
- CControlBar::OnRButtonDown(nFlags, point);
- }
- void CSizingControlBar::OnMouseMove(UINT nFlags, CPoint point)
- {
- if (m_bTracking)
- {
- ASSERT (!IsFloating());
- CPoint pt = point;
- ClientToScreen(&pt);
- OnTrackUpdateSize(pt);
- }
- CControlBar::OnMouseMove(nFlags, point);
- }
- void CSizingControlBar::OnCaptureChanged(CWnd *pWnd)
- {
- if (m_bTracking && pWnd != this)
- StopTracking(FALSE); // cancel tracking
- CControlBar::OnCaptureChanged(pWnd);
- }
- void CSizingControlBar::OnNcCalcSize(BOOL bCalcValidRects,
- NCCALCSIZE_PARAMS FAR* lpncsp)
- {
- // Compute the rectangle of the mobile edge
- GetWindowRect(m_rectBorder);
- m_rectBorder.OffsetRect(-m_rectBorder.left, -m_rectBorder.top);
- m_rectBorder.DeflateRect(1, 1);
-
- m_rectGripper = m_rectBorder;
- m_rectGripper.DeflateRect(5, 5);
- m_rectGripper.right -= m_cxEdge;
- m_rectGripper.bottom -= m_cxEdge;
- CRect rc = lpncsp->rgrc[0];
- DWORD dwBorderStyle = m_dwStyle | CBRS_BORDER_ANY;
- switch(m_nDockBarID)
- {
- case AFX_IDW_DOCKBAR_TOP:
- dwBorderStyle &= ~CBRS_BORDER_BOTTOM;
- rc.DeflateRect(m_cyGripper + 2, 2, 2, m_cxEdge + 2);
- m_rectBorder.top = m_rectBorder.bottom - m_cxEdge;
- break;
- case AFX_IDW_DOCKBAR_BOTTOM:
- dwBorderStyle &= ~CBRS_BORDER_TOP;
- rc.DeflateRect(m_cyGripper + 2, m_cxEdge + 2, 2, 2);
- m_rectBorder.bottom = m_rectBorder.top + m_cxEdge;
- m_rectGripper.OffsetRect(0, m_cxEdge);
- break;
- case AFX_IDW_DOCKBAR_LEFT:
- dwBorderStyle &= ~CBRS_BORDER_RIGHT;
- rc.DeflateRect(2, m_cyGripper + 2, m_cxEdge + 2, 6);
- m_rectBorder.left = m_rectBorder.right - m_cxEdge;
- break;
- case AFX_IDW_DOCKBAR_RIGHT:
- dwBorderStyle &= ~CBRS_BORDER_LEFT;
- rc.DeflateRect(m_cxEdge + 2, m_cyGripper + 2, 2, 6);
- m_rectBorder.right = m_rectBorder.left + m_cxEdge;
- m_rectGripper.OffsetRect(m_cxEdge, 0);
- break;
- default:
- m_rectBorder.SetRectEmpty();
- break;
- }
- lpncsp->rgrc[0] = rc;
- SetBarStyle(dwBorderStyle);
- }
- void CSizingControlBar::OnNcPaint()
- {
- // get window DC that is clipped to the non-client area
- CWindowDC dc(this);
- CRect rectClient;
- GetClientRect(rectClient);
- CRect rectWindow;
- GetWindowRect(rectWindow);
- ScreenToClient(rectWindow);
- rectClient.OffsetRect(-rectWindow.left, -rectWindow.top);
- dc.ExcludeClipRect(rectClient);
- // draw borders in non-client area
- rectWindow.OffsetRect(-rectWindow.left, -rectWindow.top);
- DrawBorders(&dc, rectWindow);
- // erase parts not drawn
- dc.IntersectClipRect(rectWindow);
- // erase NC background the hard way
- HBRUSH hbr = (HBRUSH)GetClassLong(m_hWnd, GCL_HBRBACKGROUND);
- ::FillRect(dc.m_hDC, rectWindow, hbr);
- // paint the mobile edge
- dc.Draw3dRect(m_rectBorder, ::GetSysColor(COLOR_BTNHIGHLIGHT),
- ::GetSysColor(COLOR_BTNSHADOW));
- if (m_bHasGripper)
- {
- // paint the gripper
- CRect gripper = m_rectGripper;
-
- if (IsHorzDocked())
- {
- // gripper at left
- gripper.right = gripper.left + 3;
- dc.Draw3dRect(gripper, ::GetSysColor(COLOR_BTNHIGHLIGHT),
- ::GetSysColor(COLOR_BTNSHADOW));
- gripper.OffsetRect(3, 0);
- dc.Draw3dRect(gripper, ::GetSysColor(COLOR_BTNHIGHLIGHT),
- ::GetSysColor(COLOR_BTNSHADOW));
- }
- else if (IsVertDocked())
- {
- // gripper at top
- gripper.bottom = gripper.top + 3;
- dc.Draw3dRect(gripper, ::GetSysColor(COLOR_BTNHIGHLIGHT),
- ::GetSysColor(COLOR_BTNSHADOW));
- gripper.OffsetRect(0, 3);
- dc.Draw3dRect(gripper, ::GetSysColor(COLOR_BTNHIGHLIGHT),
- ::GetSysColor(COLOR_BTNSHADOW));
- }
- }
- ReleaseDC(&dc);
- }
- void CSizingControlBar::OnPaint()
- {
- // overridden to skip border painting based on clientrect
- CPaintDC dc(this);
- }
- UINT CSizingControlBar::OnNcHitTest(CPoint point)
- {
- if (IsFloating())
- return CControlBar::OnNcHitTest(point);
- CRect rc;
- GetWindowRect(rc);
- point.Offset(-rc.left, -rc.top);
- if (m_rectBorder.PtInRect(point))
- return HTSIZE;
- else
- return HTCLIENT;
- }
- /////////////////////////////////////////////////////////////////////////
- // CSizingControlBar implementation helpers
- void CSizingControlBar::StartTracking()
- {
- SetCapture();
- // make sure no updates are pending
- RedrawWindow(NULL, NULL, RDW_ALLCHILDREN | RDW_UPDATENOW);
-
- m_bDragShowContent = QueryDragFullWindows();
-
- if (!m_bDragShowContent)
- m_pDockSite->LockWindowUpdate();
- m_sizeOld = IsHorzDocked() ? m_sizeHorz : m_sizeVert;
- CRect rect;
- GetWindowRect(&rect);
- m_ptOld = m_rectBorder.CenterPoint() + rect.TopLeft();
- m_sizeMax = CalcMaxSize();
- m_bTracking = TRUE;
-
- if (!m_bDragShowContent)
- OnTrackInvertTracker();
- }
- void CSizingControlBar::StopTracking(BOOL bAccept)
- {
- if (!m_bDragShowContent)
- {
- OnTrackInvertTracker();
- m_pDockSite->UnlockWindowUpdate();
- }
- m_bTracking = FALSE;
- ReleaseCapture();
-
- if (!bAccept) // resize canceled?
- {
- // restore old size
- if (IsHorzDocked())
- m_sizeHorz = m_sizeOld;
- else
- m_sizeVert = m_sizeOld;
- }
- m_pDockSite->DelayRecalcLayout();
- }
- void CSizingControlBar::OnTrackUpdateSize(CPoint& point)
- {
- BOOL bHorz = IsHorzDocked();
- CSize sizeNew = m_sizeOld;
-
- if ((m_nDockBarID == AFX_IDW_DOCKBAR_TOP) ||
- (m_nDockBarID == AFX_IDW_DOCKBAR_LEFT))
- sizeNew += point - m_ptOld;
- else
- sizeNew -= point - m_ptOld;
- // check limits
- sizeNew.cx = max(m_sizeMin.cx, sizeNew.cx);
- sizeNew.cy = max(m_sizeMin.cy, sizeNew.cy);
- sizeNew.cx = min(m_sizeMax.cx, sizeNew.cx);
- sizeNew.cy = min(m_sizeMax.cy, sizeNew.cy);
- if ((sizeNew.cy == m_sizeHorz.cy) && bHorz ||
- (sizeNew.cx == m_sizeVert.cx) && !bHorz)
- return; // no size change
- if (!m_bDragShowContent)
- OnTrackInvertTracker();
- if (bHorz)
- m_sizeHorz = sizeNew;
- else
- m_sizeVert = sizeNew;
- if (!m_bDragShowContent)
- OnTrackInvertTracker();
- else
- m_pDockSite->DelayRecalcLayout();
- }
- CSize CSizingControlBar::CalcMaxSize()
- {
- // the control bar cannot grow with more than the size of
- // remaining client area of the frame
- CRect rect;
- m_pDockSite->GetClientRect(&rect);
- CSize size = rect.Size();
- CWnd* pBar;
- if (IsHorzDocked())
- {
- if (pBar = m_pDockSite->GetControlBar(AFX_IDW_DOCKBAR_TOP))
- {
- pBar->GetWindowRect(&rect);
- size -= rect.Size();
- }
- if (pBar = m_pDockSite->GetControlBar(AFX_IDW_DOCKBAR_BOTTOM))
- {
- pBar->GetWindowRect(&rect);
- size -= rect.Size();
- }
- if (pBar = m_pDockSite->GetControlBar(AFX_IDW_STATUS_BAR))
- {
- pBar->GetWindowRect(&rect);
- size -= rect.Size();
- }
- }
- else
- {
- if (pBar = m_pDockSite->GetControlBar(AFX_IDW_DOCKBAR_LEFT))
- {
- pBar->GetWindowRect(&rect);
- size -= rect.Size();
- }
- if (pBar = m_pDockSite->GetControlBar(AFX_IDW_DOCKBAR_RIGHT))
- {
- pBar->GetWindowRect(&rect);
- size -= rect.Size();
- }
- }
-
- size -= CSize(4, 4);
- size += IsHorzDocked() ? m_sizeHorz : m_sizeVert;
- return size;
- }
- void CSizingControlBar::OnTrackInvertTracker()
- {
- ASSERT_VALID(this);
- ASSERT(m_bTracking);
- CRect rect = m_rectBorder;
- CRect rectBar, rectFrame;
- GetWindowRect(rectBar);
- rect.OffsetRect(rectBar.TopLeft());
- m_pDockSite->GetWindowRect(rectFrame);
- rect.OffsetRect(-rectFrame.left, -rectFrame.top);
- switch (m_nDockBarID)
- {
- case AFX_IDW_DOCKBAR_TOP:
- rect.OffsetRect(0, m_sizeHorz.cy - m_sizeOld.cy); break;
- case AFX_IDW_DOCKBAR_BOTTOM:
- rect.OffsetRect(0, m_sizeOld.cy - m_sizeHorz.cy); break;
- case AFX_IDW_DOCKBAR_LEFT:
- rect.OffsetRect(m_sizeVert.cx - m_sizeOld.cx, 0); break;
- case AFX_IDW_DOCKBAR_RIGHT:
- rect.OffsetRect(m_sizeOld.cx - m_sizeVert.cx, 0); break;
- }
- if (IsVertDocked())
- rect.bottom -= 4;
- rect.DeflateRect(1, 1);
- CDC *pDC = m_pDockSite->GetDCEx(NULL,
- DCX_WINDOW|DCX_CACHE|DCX_LOCKWINDOWUPDATE);
- CBrush* pBrush = CDC::GetHalftoneBrush();
- HBRUSH hOldBrush = NULL;
- if (pBrush != NULL)
- hOldBrush = (HBRUSH)::SelectObject(pDC->m_hDC, pBrush->m_hObject);
- pDC->PatBlt(rect.left, rect.top,
- rect.Width(), rect.Height(), PATINVERT);
- if (hOldBrush != NULL)
- ::SelectObject(pDC->m_hDC, hOldBrush);
- m_pDockSite->ReleaseDC(pDC);
- }
- BOOL CSizingControlBar::QueryDragFullWindows() const
- {
- TCHAR sDragfullWindows[2];
- DWORD cbDragfullWindows = sizeof(DWORD);
- DWORD dwType;
- HKEY hKey;
- BOOL bRet = FALSE;
- RegOpenKeyEx(HKEY_CURRENT_USER, _T("Control Panel\desktop"),
- 0, KEY_QUERY_VALUE, &hKey);
- if (!FAILED(RegQueryValueEx(hKey, _T("DragfullWindows"),
- NULL, &dwType, (LPBYTE)&sDragfullWindows, &cbDragfullWindows)))
- if (!_tcscmp(sDragfullWindows, _T("1")))
- bRet = TRUE;
- RegCloseKey(hKey);
- return bRet;
- }