www.pudn.com > SCIDE.rar > sizecbar.cpp
/////////////////////////////////////////////////////////////////////////
// Copyright (C) 1998, 1999 by Cristi Posea
// All rights reserved
//
// Use and distribute freely, except: don't remove my name from the
// source or documentation (don't take credit for my work), mark your
// changes (don't get me blamed for your possible bugs), don't alter
// or remove this notice.
// No warrantee of any kind, express or implied, is included with this
// software; use at your own risk, responsibility for damages (if any) to
// anyone resulting from the use of this software rests entirely with the
// user.
//
// This class is intended to be used as a base class. Do not simply add
// your code to this file - instead create a new class derived from
// CSizingControlBar and put there what you need.
// Modify this file only to fix bugs, and don't forget to send me a copy.
//
// Send bug reports, bug fixes, enhancements, requests, flames, etc.,
// and I'll try to keep a version up to date. I can be reached at:
// cristip@dundas.com
//
// More details at MFC Programmer's SourceBook
// http://www.codeguru.com/docking/docking_window.shtml or search
// www.codeguru.com for my name if the article was moved.
//
/////////////////////////////////////////////////////////////////////////
//
// Acknowledgements:
// o Thanks to Harlan R. Seymour (harlans@dundas.com) for his continuous
// support during development of this code.
// o Thanks to Dundas Software for the opportunity to test this code
// on real-life applications.
// If you don't know who they are, visit them at www.dundas.com .
// Their award winning components and development suites are
// a pile of gold.
// o Thanks to Chris Maunder (chrism@dundas.com) who came with the
// simplest way to query "Show window content while dragging" system
// setting.
// o Thanks to Zafir Anjum (zafir@codeguru.com) for publishing this
// code on his cool site (www.codeguru.com).
// o Some ideas for the gripper came from the CToolBarEx flat toolbar
// by Joerg Koenig (Joerg.Koenig@rhein-neckar.de). Also he inspired
// me on writing this notice:) . Thanks, Joerg!
// o Thanks to Jakawan Ratiwanich (jack@alpha.fsec.ucf.edu) and to
// Udo Schaefer (Udo.Schaefer@vcase.de) for the dwStyle bug fix under
// VC++ 6.0.
// o And, of course, many thanks to all of you who used this code,
// for the invaluable feedback I received.
//
/////////////////////////////////////////////////////////////////////////
// sizecbar.cpp : implementation file
//
#include "stdafx.h"
#include "sizecbar.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////
// CSizingControlBar
CSCBArray CSizingControlBar::m_arrBars; // static member
IMPLEMENT_DYNAMIC(CSizingControlBar, baseCSizingControlBar);
CSizingControlBar::CSizingControlBar()
{
m_szMin = CSize(33, 32);
m_szHorz = CSize(200, 200);
m_szVert = CSize(200, 200);
m_szFloat = CSize(200, 200);
m_bTracking = FALSE;
m_bKeepSize = FALSE;
m_bParentSizing = FALSE;
m_cxEdge = 5;
m_bDragShowContent = FALSE;
m_nDockBarID = 0;
m_dwSCBStyle = 0;
}
CSizingControlBar::~CSizingControlBar()
{
}
BEGIN_MESSAGE_MAP(CSizingControlBar, baseCSizingControlBar)
//{{AFX_MSG_MAP(CSizingControlBar)
ON_WM_CREATE()
ON_WM_PAINT()
ON_WM_NCPAINT()
ON_WM_NCCALCSIZE()
ON_WM_WINDOWPOSCHANGING()
ON_WM_CAPTURECHANGED()
ON_WM_SETTINGCHANGE()
ON_WM_LBUTTONUP()
ON_WM_MOUSEMOVE()
ON_WM_NCLBUTTONDOWN()
ON_WM_LBUTTONDOWN()
ON_WM_LBUTTONDBLCLK()
ON_WM_RBUTTONDOWN()
ON_WM_NCLBUTTONUP()
ON_WM_NCMOUSEMOVE()
ON_WM_NCHITTEST()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
BOOL CSizingControlBar::Create(LPCTSTR lpszWindowName, CWnd* pParentWnd,
CSize sizeDefault, BOOL bHasGripper,
UINT nID, DWORD dwStyle)
{
// must have a parent
ASSERT_VALID(pParentWnd);
// cannot be both fixed and dynamic
// (CBRS_SIZE_DYNAMIC is used for resizng when floating)
ASSERT (!((dwStyle & CBRS_SIZE_FIXED) &&
(dwStyle & CBRS_SIZE_DYNAMIC)));
m_dwStyle = dwStyle & CBRS_ALL; // save the control bar styles
m_szHorz = sizeDefault; // set the size members
m_szVert = sizeDefault;
m_szFloat = sizeDefault;
m_cyGripper = bHasGripper ? 12 : 0; // set the gripper width
// register and create the window - skip CControlBar::Create()
CString wndclass = ::AfxRegisterWndClass(CS_DBLCLKS,
::LoadCursor(NULL, IDC_ARROW),
::GetSysColorBrush(COLOR_BTNFACE), 0);
dwStyle &= ~CBRS_ALL; // keep only the generic window styles
dwStyle |= WS_CLIPCHILDREN; // prevents flashing
if (!CWnd::Create(wndclass, lpszWindowName, dwStyle,
CRect(0, 0, 0, 0), pParentWnd, nID))
return FALSE;
return TRUE;
}
/////////////////////////////////////////////////////////////////////////
// CSizingControlBar message handlers
int CSizingControlBar::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (baseCSizingControlBar::OnCreate(lpCreateStruct) == -1)
return -1;
// querry SPI_GETDRAGFULLWINDOWS system parameter
// OnSettingChange() will update m_bDragShowContent
m_bDragShowContent = FALSE;
::SystemParametersInfo(SPI_GETDRAGFULLWINDOWS, 0,
&m_bDragShowContent, 0);
m_arrBars.Add(this); // register
m_dwSCBStyle |= SCBS_SHOWEDGES;//原来是注释掉的，蒋勇恢复
return 0;
}
BOOL CSizingControlBar::DestroyWindow()
{
int nPos = FindSizingBar(this);
ASSERT(nPos >= 0);
m_arrBars.RemoveAt(nPos); // unregister
return baseCSizingControlBar::DestroyWindow();
}
const BOOL CSizingControlBar::IsFloating() const
{
return !IsHorzDocked() && !IsVertDocked();
}
const BOOL CSizingControlBar::IsHorzDocked() const
{
return (m_nDockBarID == AFX_IDW_DOCKBAR_TOP ||
m_nDockBarID == AFX_IDW_DOCKBAR_BOTTOM);
}
const BOOL CSizingControlBar::IsVertDocked() const
{
return (m_nDockBarID == AFX_IDW_DOCKBAR_LEFT ||
m_nDockBarID == AFX_IDW_DOCKBAR_RIGHT);
}
const BOOL CSizingControlBar::IsSideTracking() const
{
// don't call this when not tracking
ASSERT(m_bTracking && !IsFloating());
return (m_htEdge == HTLEFT || m_htEdge == HTRIGHT) ?
IsHorzDocked() : IsVertDocked();
}
CSize CSizingControlBar::CalcFixedLayout(BOOL bStretch, BOOL bHorz)
{
if (bStretch) // the bar is stretched (is not the child of a dockbar)
if (bHorz)
return CSize(32767, m_szHorz.cy);
else
return CSize(m_szVert.cx, 32767);
// dirty cast - using CSCBDockBar to access protected CDockBar members
CSCBDockBar* pDockBar = (CSCBDockBar*) m_pDockBar;
// force imediate RecalcDelayShow() for all sizing bars on the row
// with delayShow/delayHide flags set to avoid IsVisible() problems
CSCBArray arrSCBars;
GetRowSizingBars(arrSCBars);
AFX_SIZEPARENTPARAMS layout;
layout.hDWP = pDockBar->m_bLayoutQuery ?
NULL : ::BeginDeferWindowPos(arrSCBars.GetSize());
for (int i = 0; i < arrSCBars.GetSize(); i++)
arrSCBars[i]->RecalcDelayShow(&layout);
if (layout.hDWP != NULL)
::EndDeferWindowPos(layout.hDWP);
// get available length
CRect rc = pDockBar->m_rectLayout;
if (rc.IsRectEmpty())
m_pDockSite->GetClientRect(&rc);
int nLengthAvail = bHorz ? rc.Width() + 2 : rc.Height() - 2;
if (IsVisible() && !IsFloating() &&
m_bParentSizing && arrSCBars[0] == this)
if (NegociateSpace(nLengthAvail, (bHorz != FALSE)))
AlignControlBars();
m_bParentSizing = FALSE;
CSize szRet = bHorz ? m_szHorz : m_szVert;
szRet.cx = max(m_szMin.cx, szRet.cx);
szRet.cy = max(m_szMin.cy, szRet.cy);
return szRet;
}
CSize CSizingControlBar::CalcDynamicLayout(int nLength, DWORD dwMode)
{
if (dwMode & (LM_HORZDOCK | LM_VERTDOCK)) // docked ?
{
if (nLength == -1)
m_bParentSizing = TRUE;
return baseCSizingControlBar::CalcDynamicLayout(nLength, dwMode);
}
if (dwMode & LM_MRUWIDTH) return m_szFloat;
if (dwMode & LM_COMMIT) return m_szFloat; // already committed
((dwMode & LM_LENGTHY) ? m_szFloat.cy : m_szFloat.cx) = nLength;
m_szFloat.cx = max(m_szFloat.cx, m_szMin.cx);
m_szFloat.cy = max(m_szFloat.cy, m_szMin.cy);
return m_szFloat;
}
void CSizingControlBar::OnWindowPosChanging(WINDOWPOS FAR* lpwndpos)
{
// force non-client recalc if moved or resized
lpwndpos->flags |= SWP_FRAMECHANGED;
baseCSizingControlBar::OnWindowPosChanging(lpwndpos);
// find on which side are we docked
UINT nOldDockBarID = m_nDockBarID;
m_nDockBarID = GetParent()->GetDlgCtrlID();
if (!IsFloating())
if (lpwndpos->flags & SWP_SHOWWINDOW)
m_bKeepSize = 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 (IsFloating())
{
baseCSizingControlBar::OnNcLButtonDown(nHitTest, point);
return;
}
if (m_bTracking) return;
if ((nHitTest >= HTSIZEFIRST) && (nHitTest <= HTSIZELAST))
StartTracking(nHitTest); // sizing edge hit
}
void CSizingControlBar::OnNcLButtonUp(UINT nHitTest, CPoint point)
{
if (nHitTest == HTCLOSE)
m_pDockSite->ShowControlBar(this, FALSE, FALSE); // hide
baseCSizingControlBar::OnNcLButtonUp(nHitTest, point);
}
void CSizingControlBar::OnLButtonUp(UINT nFlags, CPoint point)
{
if (m_bTracking)
StopTracking();
baseCSizingControlBar::OnLButtonUp(nFlags, point);
}
void CSizingControlBar::OnRButtonDown(UINT nFlags, CPoint point)
{
if (m_bTracking)
StopTracking();
baseCSizingControlBar::OnRButtonDown(nFlags, point);
}
void CSizingControlBar::OnMouseMove(UINT nFlags, CPoint point)
{
if (m_bTracking)
OnTrackUpdateSize(point);
baseCSizingControlBar::OnMouseMove(nFlags, point);
}
void CSizingControlBar::OnCaptureChanged(CWnd *pWnd)
{
if (m_bTracking && (pWnd != this))
StopTracking();
baseCSizingControlBar::OnCaptureChanged(pWnd);
}
void CSizingControlBar::OnNcCalcSize(BOOL bCalcValidRects,
NCCALCSIZE_PARAMS FAR* lpncsp)
{
// compute the the client area
CRect rcClient = lpncsp->rgrc[0];
rcClient.DeflateRect(5, 5);
m_dwSCBStyle &= ~SCBS_EDGEALL;
switch(m_nDockBarID)
{
case AFX_IDW_DOCKBAR_TOP:
m_dwSCBStyle |= SCBS_EDGEBOTTOM;
rcClient.DeflateRect(m_cyGripper, 0, 0, 0);
break;
case AFX_IDW_DOCKBAR_BOTTOM:
m_dwSCBStyle |= SCBS_EDGETOP;
rcClient.DeflateRect(m_cyGripper, 0, 0, 0);
break;
case AFX_IDW_DOCKBAR_LEFT:
m_dwSCBStyle |= SCBS_EDGERIGHT;
rcClient.DeflateRect(0, m_cyGripper, 0, 0);
break;
case AFX_IDW_DOCKBAR_RIGHT:
m_dwSCBStyle |= SCBS_EDGELEFT;
rcClient.DeflateRect(0, m_cyGripper, 0, 0);
break;
default:
break;
}
if (!IsFloating() && m_pDockBar != NULL)
{
CSCBArray arrSCBars;
GetRowSizingBars(arrSCBars);
for (int i = 0; i < arrSCBars.GetSize(); i++)
if (arrSCBars[i] == this)
{
if (i > 0)
m_dwSCBStyle |= IsHorzDocked() ?
SCBS_EDGELEFT : SCBS_EDGETOP;
if (i < arrSCBars.GetSize() - 1)
m_dwSCBStyle |= IsHorzDocked() ?
SCBS_EDGERIGHT : SCBS_EDGEBOTTOM;
}
}
// make room for edges only if they will be painted
if (m_dwSCBStyle & SCBS_SHOWEDGES)
rcClient.DeflateRect(
(m_dwSCBStyle & SCBS_EDGELEFT) ? m_cxEdge : 0,
(m_dwSCBStyle & SCBS_EDGETOP) ? m_cxEdge : 0,
(m_dwSCBStyle & SCBS_EDGERIGHT) ? m_cxEdge : 0,
(m_dwSCBStyle & SCBS_EDGEBOTTOM) ? m_cxEdge : 0);
// "hide" button positioning
CPoint ptOrgBtn;
if (IsHorzDocked())
ptOrgBtn = CPoint(rcClient.left - m_cyGripper - 1,
rcClient.top - 1);
else
ptOrgBtn = CPoint(rcClient.right - 11,
rcClient.top - m_cyGripper - 1);
m_biHide.Move(ptOrgBtn - CRect(lpncsp->rgrc[0]).TopLeft());
lpncsp->rgrc[0] = rcClient;
}
void CSizingControlBar::OnNcPaint()
{
// get window DC that is clipped to the non-client area
CWindowDC dc(this);
CRect rcClient, rcBar;
GetClientRect(rcClient);
ClientToScreen(rcClient);
GetWindowRect(rcBar);
rcClient.OffsetRect(-rcBar.TopLeft());
rcBar.OffsetRect(-rcBar.TopLeft());
// client area is not our bussiness :)
dc.ExcludeClipRect(rcClient);
// draw borders in non-client area
CRect rcDraw = rcBar;
DrawBorders(&dc, rcDraw);
// erase parts not drawn
dc.IntersectClipRect(rcDraw);
// erase NC background the hard way
HBRUSH hbr = (HBRUSH)GetClassLong(m_hWnd, GCL_HBRBACKGROUND);
::FillRect(dc.m_hDC, rcDraw, hbr);
if (m_dwSCBStyle & SCBS_SHOWEDGES)
{
CRect rcEdge; // paint the sizing edges
for (int i = 0; i < 4; i++)
if (GetEdgeRect(rcBar, GetEdgeHTCode(i), rcEdge))
dc.Draw3dRect(rcEdge, ::GetSysColor(COLOR_BTNHIGHLIGHT),
::GetSysColor(COLOR_BTNSHADOW));
}
if (m_cyGripper && !IsFloating())
NcPaintGripper(&dc, rcClient);
ReleaseDC(&dc);
}
void CSizingControlBar::NcPaintGripper(CDC* pDC, CRect rcClient)
{
// paints a simple "two raised lines" gripper
// override this if you want a more sophisticated gripper
CRect gripper = rcClient;
CRect rcbtn = m_biHide.GetRect();
BOOL bHorz = IsHorzDocked();
gripper.DeflateRect(1, 1);
if (bHorz)
{ // gripper at left
gripper.left -= m_cyGripper;
gripper.right = gripper.left + 3;
gripper.top = rcbtn.bottom + 3;
}
else
{ // gripper at top
gripper.top -= m_cyGripper;
gripper.bottom = gripper.top + 3;
gripper.right = rcbtn.left - 3;
}
pDC->Draw3dRect(gripper, ::GetSysColor(COLOR_BTNHIGHLIGHT),
::GetSysColor(COLOR_BTNSHADOW));
gripper.OffsetRect(bHorz ? 3 : 0, bHorz ? 0 : 3);
pDC->Draw3dRect(gripper, ::GetSysColor(COLOR_BTNHIGHLIGHT),
::GetSysColor(COLOR_BTNSHADOW));
m_biHide.Paint(pDC);
}
void CSizingControlBar::OnPaint()
{
// overridden to skip border painting based on clientrect
CPaintDC dc(this);
}
UINT CSizingControlBar::OnNcHitTest(CPoint point)
{
if (IsFloating())
return baseCSizingControlBar::OnNcHitTest(point);
CRect rcBar, rcEdge;
GetWindowRect(rcBar);
for (int i = 0; i < 4; i++)
if (GetEdgeRect(rcBar, GetEdgeHTCode(i), rcEdge))
if (rcEdge.PtInRect(point)) return GetEdgeHTCode(i);
CRect rc = m_biHide.GetRect();
rc.OffsetRect(rcBar.TopLeft());
if (rc.PtInRect(point))
return HTCLOSE;
return HTCLIENT;
}
void CSizingControlBar::OnSettingChange(UINT uFlags, LPCTSTR lpszSection)
{
baseCSizingControlBar::OnSettingChange(uFlags, lpszSection);
m_bDragShowContent = FALSE;
::SystemParametersInfo(SPI_GETDRAGFULLWINDOWS, 0,
&m_bDragShowContent, 0); // update
}
/////////////////////////////////////////////////////////////////////////
// CSizingControlBar implementation helpers
void CSizingControlBar::StartTracking(UINT nHitTest)
{
SetCapture();
// make sure no updates are pending
RedrawWindow(NULL, NULL, RDW_ALLCHILDREN | RDW_UPDATENOW);
BOOL bHorz = IsHorzDocked();
m_szOld = bHorz ? m_szHorz : m_szVert;
CRect rc;
GetWindowRect(&rc);
CRect rcEdge;
VERIFY(GetEdgeRect(rc, nHitTest, rcEdge));
m_ptOld = rcEdge.CenterPoint();
m_htEdge = nHitTest;
m_bTracking = TRUE;
CSCBArray arrSCBars;
GetRowSizingBars(arrSCBars);
// compute the minsize as the max minsize of the sizing bars on row
m_szMinT = m_szMin;
for (int i = 0; i < arrSCBars.GetSize(); i++)
if (bHorz)
m_szMinT.cy = max(m_szMinT.cy, arrSCBars[i]->m_szMin.cy);
else
m_szMinT.cx = max(m_szMinT.cx, arrSCBars[i]->m_szMin.cx);
if (!IsSideTracking())
{
// the control bar cannot grow with more than the size of
// remaining client area of the mainframe
m_pDockSite->RepositionBars(0, 0xFFFF, AFX_IDW_PANE_FIRST,
reposQuery, &rc, NULL, TRUE);
m_szMaxT = m_szOld + rc.Size() - CSize(4, 4);
}
else
{
// side tracking: max size is the actual size plus the amount
// the neighbour bar can be decreased to reach its minsize
for (int i = 0; i < arrSCBars.GetSize(); i++)
if (arrSCBars[i] == this) break;
CSizingControlBar* pBar = arrSCBars[i +
((m_htEdge == HTTOP || m_htEdge == HTLEFT) ? -1 : 1)];
m_szMaxT = m_szOld + (bHorz ? pBar->m_szHorz :
pBar->m_szVert) - pBar->m_szMin;
}
OnTrackInvertTracker(); // draw tracker
}
void CSizingControlBar::StopTracking()
{
OnTrackInvertTracker(); // erase tracker
m_bTracking = FALSE;
ReleaseCapture();
m_pDockSite->DelayRecalcLayout();
}
void CSizingControlBar::OnTrackUpdateSize(CPoint& point)
{
ASSERT(!IsFloating());
CPoint pt = point;
ClientToScreen(&pt);
CSize szDelta = pt - m_ptOld;
CSize sizeNew = m_szOld;
switch (m_htEdge)
{
case HTLEFT: sizeNew -= CSize(szDelta.cx, 0); break;
case HTTOP: sizeNew -= CSize(0, szDelta.cy); break;
case HTRIGHT: sizeNew += CSize(szDelta.cx, 0); break;
case HTBOTTOM: sizeNew += CSize(0, szDelta.cy); break;
}
// enforce the limits
sizeNew.cx = max(m_szMinT.cx, min(m_szMaxT.cx, sizeNew.cx));
sizeNew.cy = max(m_szMinT.cy, min(m_szMaxT.cy, sizeNew.cy));
BOOL bHorz = IsHorzDocked();
szDelta = sizeNew - (bHorz ? m_szHorz : m_szVert);
if (szDelta == CSize(0, 0)) return; // no size change
OnTrackInvertTracker(); // erase tracker
(bHorz ? m_szHorz : m_szVert) = sizeNew; // save the new size
CSCBArray arrSCBars;
GetRowSizingBars(arrSCBars);
for (int i = 0; i < arrSCBars.GetSize(); i++)
if (!IsSideTracking())
{ // track simultaneously
CSizingControlBar* pBar = arrSCBars[i];
(bHorz ? pBar->m_szHorz.cy : pBar->m_szVert.cx) =
bHorz ? sizeNew.cy : sizeNew.cx;
}
else
{ // adjust the neighbour's size too
if (arrSCBars[i] != this) continue;
CSizingControlBar* pBar = arrSCBars[i +
((m_htEdge == HTTOP || m_htEdge == HTLEFT) ? -1 : 1)];
(bHorz ? pBar->m_szHorz.cx : pBar->m_szVert.cy) -=
bHorz ? szDelta.cx : szDelta.cy;
}
OnTrackInvertTracker(); // redraw tracker at new pos
if (m_bDragShowContent)
m_pDockSite->DelayRecalcLayout();
}
void CSizingControlBar::OnTrackInvertTracker()
{
ASSERT(m_bTracking);
if (m_bDragShowContent)
return; // don't show tracker if DragFullWindows is on
BOOL bHorz = IsHorzDocked();
CRect rc, rcBar, rcDock, rcFrame;
GetWindowRect(rcBar);
m_pDockBar->GetWindowRect(rcDock);
m_pDockSite->GetWindowRect(rcFrame);
VERIFY(GetEdgeRect(rcBar, m_htEdge, rc));
if (!IsSideTracking())
rc = bHorz ?
CRect(rcDock.left + 1, rc.top, rcDock.right - 1, rc.bottom) :
CRect(rc.left, rcDock.top + 1, rc.right, rcDock.bottom - 1);
rc.OffsetRect(-rcFrame.TopLeft());
CSize sizeNew = bHorz ? m_szHorz : m_szVert;
CSize sizeDelta = sizeNew - m_szOld;
if (m_nDockBarID == AFX_IDW_DOCKBAR_LEFT && m_htEdge == HTTOP ||
m_nDockBarID == AFX_IDW_DOCKBAR_RIGHT && m_htEdge != HTBOTTOM ||
m_nDockBarID == AFX_IDW_DOCKBAR_TOP && m_htEdge == HTLEFT ||
m_nDockBarID == AFX_IDW_DOCKBAR_BOTTOM && m_htEdge != HTRIGHT)
sizeDelta = -sizeDelta;
rc.OffsetRect(sizeDelta);
CDC *pDC = m_pDockSite->GetDCEx(NULL,
DCX_WINDOW | DCX_CACHE | DCX_LOCKWINDOWUPDATE);
CBrush* pBrush = CDC::GetHalftoneBrush();
CBrush* pBrushOld = pDC->SelectObject(pBrush);
pDC->PatBlt(rc.left, rc.top, rc.Width(), rc.Height(), PATINVERT);
pDC->SelectObject(pBrushOld);
m_pDockSite->ReleaseDC(pDC);
}
BOOL CSizingControlBar::GetEdgeRect(CRect rcWnd, UINT nHitTest,
CRect& rcEdge)
{
rcEdge = rcWnd;
if (m_dwSCBStyle & SCBS_SHOWEDGES)
rcEdge.DeflateRect(1, 1);
BOOL bHorz = IsHorzDocked();
switch (nHitTest)
{
case HTLEFT:
if (!(m_dwSCBStyle & SCBS_EDGELEFT)) return FALSE;
rcEdge.right = rcEdge.left + m_cxEdge;
rcEdge.DeflateRect(0, bHorz ? m_cxEdge: 0);
break;
case HTTOP:
if (!(m_dwSCBStyle & SCBS_EDGETOP)) return FALSE;
rcEdge.bottom = rcEdge.top + m_cxEdge;
rcEdge.DeflateRect(bHorz ? 0 : m_cxEdge, 0);
break;
case HTRIGHT:
if (!(m_dwSCBStyle & SCBS_EDGERIGHT)) return FALSE;
rcEdge.left = rcEdge.right - m_cxEdge;
rcEdge.DeflateRect(0, bHorz ? m_cxEdge: 0);
break;
case HTBOTTOM:
if (!(m_dwSCBStyle & SCBS_EDGEBOTTOM)) return FALSE;
rcEdge.top = rcEdge.bottom - m_cxEdge;
rcEdge.DeflateRect(bHorz ? 0 : m_cxEdge, 0);
break;
default:
ASSERT(FALSE); // invalid hit test code
}
return TRUE;
}
UINT CSizingControlBar::GetEdgeHTCode(int nEdge)
{
if (nEdge == 0) return HTLEFT;
if (nEdge == 1) return HTTOP;
if (nEdge == 2) return HTRIGHT;
if (nEdge == 3) return HTBOTTOM;
ASSERT(FALSE); // invalid edge no
return HTNOWHERE;
}
void CSizingControlBar::GetRowInfo(int& nFirst, int& nLast, int& nThis)
{
ASSERT_VALID(m_pDockBar); // verify bounds
nThis = m_pDockBar->FindBar(this);
ASSERT(nThis != -1);
int i, nBars = m_pDockBar->m_arrBars.GetSize();
// find the first and the last bar in row
for (nFirst = -1, i = nThis - 1; i >= 0 && nFirst == -1; i--)
if (m_pDockBar->m_arrBars[i] == NULL)
nFirst = i + 1;
for (nLast = -1, i = nThis + 1; i < nBars && nLast == -1; i++)
if (m_pDockBar->m_arrBars[i] == NULL)
nLast = i - 1;
ASSERT((nLast != -1) && (nFirst != -1));
}
void CSizingControlBar::GetRowSizingBars(CSCBArray& arrSCBars)
{
arrSCBars.RemoveAll();
int nFirst, nLast, nThis;
GetRowInfo(nFirst, nLast, nThis);
for (int i = nFirst; i <= nLast; i++)
{
CControlBar* pBar = (CControlBar*)m_pDockBar->m_arrBars[i];
if (HIWORD(pBar) == 0) continue; // placeholder
if (!pBar->IsVisible()) continue;
if (FindSizingBar(pBar) >= 0)
arrSCBars.Add((CSizingControlBar*)pBar);
}
}
const int CSizingControlBar::FindSizingBar(CControlBar* pBar) const
{
for (int nPos = 0; nPos < m_arrBars.GetSize(); nPos++)
if (m_arrBars[nPos] == pBar)
return nPos; // got it
return -1; // not found
}
BOOL CSizingControlBar::NegociateSpace(int nLengthAvail, BOOL bHorz)
{
ASSERT(bHorz == IsHorzDocked());
int nFirst, nLast, nThis;
GetRowInfo(nFirst, nLast, nThis);
// step 1: subtract the visible fixed bars' lengths
for (int i = nFirst; i <= nLast; i++)
{
CControlBar* pFBar = (CControlBar*)m_pDockBar->m_arrBars[i];
if (HIWORD(pFBar) == 0) continue; // placeholder
if (!pFBar->IsVisible() || (FindSizingBar(pFBar) >= 0)) continue;
CRect rcBar;
pFBar->GetWindowRect(&rcBar);
nLengthAvail -= (bHorz ? rcBar.Width() - 2 : rcBar.Height() - 2);
}
CSCBArray arrSCBars;
GetRowSizingBars(arrSCBars);
CSizingControlBar* pBar;
// step 2: compute actual and min lengths; also the common width
int nActualLength = 0;
int nMinLength = 2;
int nWidth = 0;
for (i = 0; i < arrSCBars.GetSize(); i++)
{
pBar = arrSCBars[i];
nActualLength += bHorz ? pBar->m_szHorz.cx - 2 :
pBar->m_szVert.cy - 2;
nMinLength += bHorz ? pBar->m_szMin.cx - 2:
pBar->m_szMin.cy - 2;
nWidth = max(nWidth, bHorz ? pBar->m_szHorz.cy :
pBar->m_szVert.cx);
}
// step 3: pop the bar out of the row if not enough room
if (nMinLength > nLengthAvail)
{
if (nFirst < nThis || nThis < nLast)
{ // not enough room - create a new row
m_pDockBar->m_arrBars.InsertAt(nLast + 1, this);
m_pDockBar->m_arrBars.InsertAt(nLast + 1, (CControlBar*) NULL);
m_pDockBar->m_arrBars.RemoveAt(nThis);
}
return FALSE;
}
// step 4: make the bars same width
for (i = 0; i < arrSCBars.GetSize(); i++)
if (bHorz)
arrSCBars[i]->m_szHorz.cy = nWidth;
else
arrSCBars[i]->m_szVert.cx = nWidth;
if (nActualLength == nLengthAvail)
return TRUE; // no change
// step 5: distribute the difference between the bars, but
// don't shrink them below minsize
int nDelta = nLengthAvail - nActualLength;
while (nDelta != 0)
{
int nDeltaOld = nDelta;
for (i = 0; i < arrSCBars.GetSize(); i++)
{
pBar = arrSCBars[i];
int nLMin = bHorz ? pBar->m_szMin.cx : pBar->m_szMin.cy;
int nL = bHorz ? pBar->m_szHorz.cx : pBar->m_szVert.cy;
if ((nL == nLMin) && (nDelta < 0) || // already at min length
pBar->m_bKeepSize) // or wants to keep its size
continue;
// sign of nDelta
int nDelta2 = (nDelta == 0) ? 0 : ((nDelta < 0) ? -1 : 1);
(bHorz ? pBar->m_szHorz.cx : pBar->m_szVert.cy) += nDelta2;
nDelta -= nDelta2;
if (nDelta == 0) break;
}
// clear m_bKeepSize flags
if ((nDeltaOld == nDelta) || (nDelta == 0))
for (i = 0; i < arrSCBars.GetSize(); i++)
arrSCBars[i]->m_bKeepSize = FALSE;
}
return TRUE;
}
void CSizingControlBar::AlignControlBars()
{
int nFirst, nLast, nThis;
GetRowInfo(nFirst, nLast, nThis);
BOOL bHorz = IsHorzDocked();
BOOL bNeedRecalc = FALSE;
int nPos, nAlign = bHorz ? -2 : 0;
CRect rc, rcDock;
m_pDockBar->GetWindowRect(&rcDock);
for (int i = nFirst; i <= nLast; i++)
{
CControlBar* pBar = (CControlBar*)m_pDockBar->m_arrBars[i];
if (HIWORD(pBar) == 0) continue; // placeholder
if (!pBar->IsVisible()) continue;
pBar->GetWindowRect(&rc);
rc.OffsetRect(-rcDock.TopLeft());
if ((nPos = FindSizingBar(pBar)) >= 0)
rc = CRect(rc.TopLeft(), bHorz ?
m_arrBars[nPos]->m_szHorz : m_arrBars[nPos]->m_szVert);
if ((bHorz ? rc.left : rc.top) != nAlign)
{
if (!bHorz)
rc.OffsetRect(0, nAlign - rc.top - 2);
else if (m_nDockBarID == AFX_IDW_DOCKBAR_TOP)
rc.OffsetRect(nAlign - rc.left, -2);
else
rc.OffsetRect(nAlign - rc.left, 0);
pBar->MoveWindow(rc);
bNeedRecalc = TRUE;
}
nAlign += (bHorz ? rc.Width() : rc.Height()) - 2;
}
if (bNeedRecalc)
{
m_pDockSite->DelayRecalcLayout();
TRACE("ccc\n");
}
}
void CSizingControlBar::OnUpdateCmdUI(CFrameWnd* pTarget, BOOL bDisableIfNoHndler)
{
BOOL bNeedPaint = FALSE;
CPoint pt;
::GetCursorPos(&pt);
BOOL bHit = (OnNcHitTest(pt) == HTCLOSE);
BOOL bLButtonDown = (::GetKeyState(VK_LBUTTON) < 0);
BOOL bWasPushed = m_biHide.bPushed;
m_biHide.bPushed = bHit && bLButtonDown;
BOOL bWasRaised = m_biHide.bRaised;
m_biHide.bRaised = bHit && !bLButtonDown;
bNeedPaint |= (m_biHide.bPushed ^ bWasPushed) ||
(m_biHide.bRaised ^ bWasRaised);
if (bNeedPaint)
SendMessage(WM_NCPAINT);
}
void CSizingControlBar::LoadState(LPCTSTR lpszProfileName)
{
ASSERT_VALID(this);
ASSERT(GetSafeHwnd()); // must be called after Create()
CWinApp* pApp = AfxGetApp();
TCHAR szSection[256];
wsprintf(szSection, _T("%s-SCBar-%d"), lpszProfileName,
GetDlgCtrlID());
m_szHorz.cx = max(m_szMin.cx, (int) pApp->GetProfileInt(szSection,
_T("sizeHorzCX"), m_szHorz.cx));
m_szHorz.cy = max(m_szMin.cy, (int) pApp->GetProfileInt(szSection,
_T("sizeHorzCY"), m_szHorz.cy));
m_szVert.cx = max(m_szMin.cx, (int) pApp->GetProfileInt(szSection,
_T("sizeVertCX"), m_szVert.cx));
m_szVert.cy = max(m_szMin.cy, (int) pApp->GetProfileInt(szSection,
_T("sizeVertCY"), m_szVert.cy));
m_szFloat.cx = max(m_szMin.cx, (int) pApp->GetProfileInt(szSection,
_T("sizeFloatCX"), m_szFloat.cx));
m_szFloat.cy = max(m_szMin.cy, (int) pApp->GetProfileInt(szSection,
_T("sizeFloatCY"), m_szFloat.cy));
}
void CSizingControlBar::SaveState(LPCTSTR lpszProfileName)
{
// place your SaveState or GlobalSaveState call in
// CMainFrame::DestroyWindow(), not in OnDestroy()
ASSERT_VALID(this);
ASSERT(GetSafeHwnd());
CWinApp* pApp = AfxGetApp();
TCHAR szSection[256];
wsprintf(szSection, _T("%s-SCBar-%d"), lpszProfileName,
GetDlgCtrlID());
pApp->WriteProfileInt(szSection, _T("sizeHorzCX"), m_szHorz.cx);
pApp->WriteProfileInt(szSection, _T("sizeHorzCY"), m_szHorz.cy);
pApp->WriteProfileInt(szSection, _T("sizeVertCX"), m_szVert.cx);
pApp->WriteProfileInt(szSection, _T("sizeVertCY"), m_szVert.cy);
pApp->WriteProfileInt(szSection, _T("sizeFloatCX"), m_szFloat.cx);
pApp->WriteProfileInt(szSection, _T("sizeFloatCY"), m_szFloat.cy);
}
void CSizingControlBar::GlobalLoadState(LPCTSTR lpszProfileName)
{
for (int i = 0; i < m_arrBars.GetSize(); i++)
((CSizingControlBar*) m_arrBars[i])->LoadState(lpszProfileName);
}
void CSizingControlBar::GlobalSaveState(LPCTSTR lpszProfileName)
{
for (int i = 0; i < m_arrBars.GetSize(); i++)
((CSizingControlBar*) m_arrBars[i])->SaveState(lpszProfileName);
}
/////////////////////////////////////////////////////////////////////////
// CSCBButton
CSCBButton::CSCBButton()
{
bRaised = FALSE;
bPushed = FALSE;
}
void CSCBButton::Paint(CDC* pDC)
{
CRect rc = GetRect();
if (bPushed)
pDC->Draw3dRect(rc, ::GetSysColor(COLOR_BTNSHADOW),
::GetSysColor(COLOR_BTNHIGHLIGHT));
else
if (bRaised)
pDC->Draw3dRect(rc, ::GetSysColor(COLOR_BTNHIGHLIGHT),
::GetSysColor(COLOR_BTNSHADOW));
COLORREF clrOldTextColor = pDC->GetTextColor();
pDC->SetTextColor(::GetSysColor(COLOR_BTNTEXT));
int nPrevBkMode = pDC->SetBkMode(TRANSPARENT);
CFont font;
int ppi = pDC->GetDeviceCaps(LOGPIXELSX);
int pointsize = MulDiv(68, 96, ppi); // 6 points at 96 ppi,蒋勇将60改为68
font.CreatePointFont(pointsize, _T("Marlett"));
CFont* oldfont = pDC->SelectObject(&font);
pDC->TextOut(ptOrg.x + 2, ptOrg.y + 2, CString(_T("r"))); // x-like
pDC->SelectObject(oldfont);
pDC->SetBkMode(nPrevBkMode);
pDC->SetTextColor(clrOldTextColor);
}