Show atlsplit.h syntax highlighted
// Windows Template Library - WTL version 8.0
// Copyright (C) Microsoft Corporation. All rights reserved.
//
// This file is a part of the Windows Template Library.
// The use and distribution terms for this software are covered by the
// Common Public License 1.0 (http://opensource.org/licenses/cpl.php)
// which can be found in the file CPL.TXT at the root of this distribution.
// By using this software in any fashion, you are agreeing to be bound by
// the terms of this license. You must not remove this notice, or
// any other, from this software.
#ifndef __ATLSPLIT_H__
#define __ATLSPLIT_H__
#pragma once
#ifndef __cplusplus
#error ATL requires C++ compilation (use a .cpp suffix)
#endif
#ifndef __ATLAPP_H__
#error atlsplit.h requires atlapp.h to be included first
#endif
#ifndef __ATLWIN_H__
#error atlsplit.h requires atlwin.h to be included first
#endif
///////////////////////////////////////////////////////////////////////////////
// Classes in this file:
//
// CSplitterImpl<T, t_bVertical>
// CSplitterWindowImpl<T, t_bVertical, TBase, TWinTraits>
// CSplitterWindowT<t_bVertical>
namespace WTL
{
///////////////////////////////////////////////////////////////////////////////
// CSplitterImpl - Provides splitter support to any window
// Splitter panes constants
#define SPLIT_PANE_LEFT 0
#define SPLIT_PANE_RIGHT 1
#define SPLIT_PANE_TOP SPLIT_PANE_LEFT
#define SPLIT_PANE_BOTTOM SPLIT_PANE_RIGHT
#define SPLIT_PANE_NONE -1
// Splitter extended styles
#define SPLIT_PROPORTIONAL 0x00000001
#define SPLIT_NONINTERACTIVE 0x00000002
#define SPLIT_RIGHTALIGNED 0x00000004
#define SPLIT_BOTTOMALIGNED SPLIT_RIGHTALIGNED
// Note: SPLIT_PROPORTIONAL and SPLIT_RIGHTALIGNED/SPLIT_BOTTOMALIGNED are
// mutually exclusive. If both are set, splitter defaults to SPLIT_PROPORTIONAL
template <class T, bool t_bVertical = true>
class CSplitterImpl
{
public:
enum { m_nPanesCount = 2, m_nPropMax = 10000 };
HWND m_hWndPane[m_nPanesCount];
RECT m_rcSplitter;
int m_xySplitterPos;
int m_nDefActivePane;
int m_cxySplitBar; // splitter bar width/height
static HCURSOR m_hCursor;
int m_cxyMin; // minimum pane size
int m_cxyBarEdge; // splitter bar edge
bool m_bFullDrag;
int m_cxyDragOffset;
int m_nProportionalPos;
bool m_bUpdateProportionalPos;
DWORD m_dwExtendedStyle; // splitter specific extended styles
int m_nSinglePane; // single pane mode
// Constructor
CSplitterImpl() :
m_xySplitterPos(-1), m_nDefActivePane(SPLIT_PANE_NONE),
m_cxySplitBar(0), m_cxyMin(0), m_cxyBarEdge(0), m_bFullDrag(true),
m_cxyDragOffset(0), m_nProportionalPos(0), m_bUpdateProportionalPos(true),
m_dwExtendedStyle(SPLIT_PROPORTIONAL),
m_nSinglePane(SPLIT_PANE_NONE)
{
m_hWndPane[SPLIT_PANE_LEFT] = NULL;
m_hWndPane[SPLIT_PANE_RIGHT] = NULL;
::SetRectEmpty(&m_rcSplitter);
if(m_hCursor == NULL)
{
CStaticDataInitCriticalSectionLock lock;
if(FAILED(lock.Lock()))
{
ATLTRACE2(atlTraceUI, 0, _T("ERROR : Unable to lock critical section in CSplitterImpl::CSplitterImpl.\n"));
ATLASSERT(FALSE);
return;
}
if(m_hCursor == NULL)
m_hCursor = ::LoadCursor(NULL, t_bVertical ? IDC_SIZEWE : IDC_SIZENS);
lock.Unlock();
}
}
// Attributes
void SetSplitterRect(LPRECT lpRect = NULL, bool bUpdate = true)
{
if(lpRect == NULL)
{
T* pT = static_cast<T*>(this);
pT->GetClientRect(&m_rcSplitter);
}
else
{
m_rcSplitter = *lpRect;
}
if(IsProportional())
UpdateProportionalPos();
else if(IsRightAligned())
UpdateRightAlignPos();
if(bUpdate)
UpdateSplitterLayout();
}
void GetSplitterRect(LPRECT lpRect) const
{
ATLASSERT(lpRect != NULL);
*lpRect = m_rcSplitter;
}
bool SetSplitterPos(int xyPos = -1, bool bUpdate = true)
{
if(xyPos == -1) // -1 == middle
{
if(t_bVertical)
xyPos = (m_rcSplitter.right - m_rcSplitter.left - m_cxySplitBar - m_cxyBarEdge) / 2;
else
xyPos = (m_rcSplitter.bottom - m_rcSplitter.top - m_cxySplitBar - m_cxyBarEdge) / 2;
}
// Adjust if out of valid range
int cxyMax = 0;
if(t_bVertical)
cxyMax = m_rcSplitter.right - m_rcSplitter.left;
else
cxyMax = m_rcSplitter.bottom - m_rcSplitter.top;
if(xyPos < m_cxyMin + m_cxyBarEdge)
xyPos = m_cxyMin;
else if(xyPos > (cxyMax - m_cxySplitBar - m_cxyBarEdge - m_cxyMin))
xyPos = cxyMax - m_cxySplitBar - m_cxyBarEdge - m_cxyMin;
// Set new position and update if requested
bool bRet = (m_xySplitterPos != xyPos);
m_xySplitterPos = xyPos;
if(m_bUpdateProportionalPos)
{
if(IsProportional())
StoreProportionalPos();
else if(IsRightAligned())
StoreRightAlignPos();
}
else
{
m_bUpdateProportionalPos = true;
}
if(bUpdate && bRet)
UpdateSplitterLayout();
return bRet;
}
int GetSplitterPos() const
{
return m_xySplitterPos;
}
bool SetSinglePaneMode(int nPane = SPLIT_PANE_NONE)
{
ATLASSERT(nPane == SPLIT_PANE_LEFT || nPane == SPLIT_PANE_RIGHT || nPane == SPLIT_PANE_NONE);
if(!(nPane == SPLIT_PANE_LEFT || nPane == SPLIT_PANE_RIGHT || nPane == SPLIT_PANE_NONE))
return false;
if(nPane != SPLIT_PANE_NONE)
{
if(!::IsWindowVisible(m_hWndPane[nPane]))
::ShowWindow(m_hWndPane[nPane], SW_SHOW);
int nOtherPane = (nPane == SPLIT_PANE_LEFT) ? SPLIT_PANE_RIGHT : SPLIT_PANE_LEFT;
::ShowWindow(m_hWndPane[nOtherPane], SW_HIDE);
if(m_nDefActivePane != nPane)
m_nDefActivePane = nPane;
}
else if(m_nSinglePane != SPLIT_PANE_NONE)
{
int nOtherPane = (m_nSinglePane == SPLIT_PANE_LEFT) ? SPLIT_PANE_RIGHT : SPLIT_PANE_LEFT;
::ShowWindow(m_hWndPane[nOtherPane], SW_SHOW);
}
m_nSinglePane = nPane;
UpdateSplitterLayout();
return true;
}
int GetSinglePaneMode() const
{
return m_nSinglePane;
}
DWORD GetSplitterExtendedStyle() const
{
return m_dwExtendedStyle;
}
DWORD SetSplitterExtendedStyle(DWORD dwExtendedStyle, DWORD dwMask = 0)
{
DWORD dwPrevStyle = m_dwExtendedStyle;
if(dwMask == 0)
m_dwExtendedStyle = dwExtendedStyle;
else
m_dwExtendedStyle = (m_dwExtendedStyle & ~dwMask) | (dwExtendedStyle & dwMask);
#ifdef _DEBUG
if(IsProportional() && IsRightAligned())
ATLTRACE2(atlTraceUI, 0, _T("CSplitterImpl::SetSplitterExtendedStyle - SPLIT_PROPORTIONAL and SPLIT_RIGHTALIGNED are mutually exclusive, defaulting to SPLIT_PROPORTIONAL.\n"));
#endif // _DEBUG
return dwPrevStyle;
}
// Splitter operations
void SetSplitterPanes(HWND hWndLeftTop, HWND hWndRightBottom, bool bUpdate = true)
{
m_hWndPane[SPLIT_PANE_LEFT] = hWndLeftTop;
m_hWndPane[SPLIT_PANE_RIGHT] = hWndRightBottom;
ATLASSERT(m_hWndPane[SPLIT_PANE_LEFT] == NULL || m_hWndPane[SPLIT_PANE_RIGHT] == NULL || m_hWndPane[SPLIT_PANE_LEFT] != m_hWndPane[SPLIT_PANE_RIGHT]);
if(bUpdate)
UpdateSplitterLayout();
}
bool SetSplitterPane(int nPane, HWND hWnd, bool bUpdate = true)
{
ATLASSERT(nPane == SPLIT_PANE_LEFT || nPane == SPLIT_PANE_RIGHT);
if(nPane != SPLIT_PANE_LEFT && nPane != SPLIT_PANE_RIGHT)
return false;
m_hWndPane[nPane] = hWnd;
ATLASSERT(m_hWndPane[SPLIT_PANE_LEFT] == NULL || m_hWndPane[SPLIT_PANE_RIGHT] == NULL || m_hWndPane[SPLIT_PANE_LEFT] != m_hWndPane[SPLIT_PANE_RIGHT]);
if(bUpdate)
UpdateSplitterLayout();
return true;
}
HWND GetSplitterPane(int nPane) const
{
ATLASSERT(nPane == SPLIT_PANE_LEFT || nPane == SPLIT_PANE_RIGHT);
if(nPane != SPLIT_PANE_LEFT && nPane != SPLIT_PANE_RIGHT)
return false;
return m_hWndPane[nPane];
}
bool SetActivePane(int nPane)
{
ATLASSERT(nPane == SPLIT_PANE_LEFT || nPane == SPLIT_PANE_RIGHT);
if(nPane != SPLIT_PANE_LEFT && nPane != SPLIT_PANE_RIGHT)
return false;
if(m_nSinglePane != SPLIT_PANE_NONE && nPane != m_nSinglePane)
return false;
::SetFocus(m_hWndPane[nPane]);
m_nDefActivePane = nPane;
return true;
}
int GetActivePane() const
{
int nRet = SPLIT_PANE_NONE;
HWND hWndFocus = ::GetFocus();
if(hWndFocus != NULL)
{
for(int nPane = 0; nPane < m_nPanesCount; nPane++)
{
if(hWndFocus == m_hWndPane[nPane] || ::IsChild(m_hWndPane[nPane], hWndFocus))
{
nRet = nPane;
break;
}
}
}
return nRet;
}
bool ActivateNextPane(bool bNext = true)
{
int nPane = m_nSinglePane;
if(nPane == SPLIT_PANE_NONE)
{
switch(GetActivePane())
{
case SPLIT_PANE_LEFT:
nPane = SPLIT_PANE_RIGHT;
break;
case SPLIT_PANE_RIGHT:
nPane = SPLIT_PANE_LEFT;
break;
default:
nPane = bNext ? SPLIT_PANE_LEFT : SPLIT_PANE_RIGHT;
break;
}
}
return SetActivePane(nPane);
}
bool SetDefaultActivePane(int nPane)
{
ATLASSERT(nPane == SPLIT_PANE_LEFT || nPane == SPLIT_PANE_RIGHT);
if(nPane != SPLIT_PANE_LEFT && nPane != SPLIT_PANE_RIGHT)
return false;
m_nDefActivePane = nPane;
return true;
}
bool SetDefaultActivePane(HWND hWnd)
{
for(int nPane = 0; nPane < m_nPanesCount; nPane++)
{
if(hWnd == m_hWndPane[nPane])
{
m_nDefActivePane = nPane;
return true;
}
}
return false; // not found
}
int GetDefaultActivePane() const
{
return m_nDefActivePane;
}
void DrawSplitter(CDCHandle dc)
{
ATLASSERT(dc.m_hDC != NULL);
if(m_nSinglePane == SPLIT_PANE_NONE && m_xySplitterPos == -1)
return;
T* pT = static_cast<T*>(this);
if(m_nSinglePane == SPLIT_PANE_NONE)
{
pT->DrawSplitterBar(dc);
for(int nPane = 0; nPane < m_nPanesCount; nPane++)
{
if(m_hWndPane[nPane] == NULL)
pT->DrawSplitterPane(dc, nPane);
}
}
else
{
if(m_hWndPane[m_nSinglePane] == NULL)
pT->DrawSplitterPane(dc, m_nSinglePane);
}
}
// Overrideables
void DrawSplitterBar(CDCHandle dc)
{
RECT rect;
if(GetSplitterBarRect(&rect))
{
dc.FillRect(&rect, COLOR_3DFACE);
// draw 3D edge if needed
T* pT = static_cast<T*>(this);
if((pT->GetExStyle() & WS_EX_CLIENTEDGE) != 0)
dc.DrawEdge(&rect, EDGE_RAISED, t_bVertical ? (BF_LEFT | BF_RIGHT) : (BF_TOP | BF_BOTTOM));
}
}
// called only if pane is empty
void DrawSplitterPane(CDCHandle dc, int nPane)
{
RECT rect;
if(GetSplitterPaneRect(nPane, &rect))
{
T* pT = static_cast<T*>(this);
if((pT->GetExStyle() & WS_EX_CLIENTEDGE) == 0)
dc.DrawEdge(&rect, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
dc.FillRect(&rect, COLOR_APPWORKSPACE);
}
}
// Message map and handlers
BEGIN_MSG_MAP(CSplitterImpl)
MESSAGE_HANDLER(WM_CREATE, OnCreate)
MESSAGE_HANDLER(WM_PAINT, OnPaint)
#ifndef _WIN32_WCE
MESSAGE_HANDLER(WM_PRINTCLIENT, OnPaint)
#endif // !_WIN32_WCE
if(IsInteractive())
{
MESSAGE_HANDLER(WM_SETCURSOR, OnSetCursor)
MESSAGE_HANDLER(WM_MOUSEMOVE, OnMouseMove)
MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
MESSAGE_HANDLER(WM_LBUTTONUP, OnLButtonUp)
MESSAGE_HANDLER(WM_LBUTTONDBLCLK, OnLButtonDoubleClick)
MESSAGE_HANDLER(WM_CAPTURECHANGED, OnCaptureChanged)
}
MESSAGE_HANDLER(WM_SETFOCUS, OnSetFocus)
#ifndef _WIN32_WCE
MESSAGE_HANDLER(WM_MOUSEACTIVATE, OnMouseActivate)
#endif // !_WIN32_WCE
MESSAGE_HANDLER(WM_SETTINGCHANGE, OnSettingChange)
END_MSG_MAP()
LRESULT OnCreate(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& bHandled)
{
GetSystemSettings(false);
bHandled = FALSE;
return 1;
}
LRESULT OnPaint(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
{
T* pT = static_cast<T*>(this);
// try setting position if not set
if(m_nSinglePane == SPLIT_PANE_NONE && m_xySplitterPos == -1)
pT->SetSplitterPos();
// do painting
CPaintDC dc(pT->m_hWnd);
pT->DrawSplitter(dc.m_hDC);
return 0;
}
LRESULT OnSetCursor(UINT /*uMsg*/, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
T* pT = static_cast<T*>(this);
if((HWND)wParam == pT->m_hWnd && LOWORD(lParam) == HTCLIENT)
{
DWORD dwPos = ::GetMessagePos();
POINT ptPos = { GET_X_LPARAM(dwPos), GET_Y_LPARAM(dwPos) };
pT->ScreenToClient(&ptPos);
if(IsOverSplitterBar(ptPos.x, ptPos.y))
return 1;
}
bHandled = FALSE;
return 0;
}
LRESULT OnMouseMove(UINT /*uMsg*/, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
T* pT = static_cast<T*>(this);
int xPos = GET_X_LPARAM(lParam);
int yPos = GET_Y_LPARAM(lParam);
if((wParam & MK_LBUTTON) && ::GetCapture() == pT->m_hWnd)
{
int xyNewSplitPos = 0;
if(t_bVertical)
xyNewSplitPos = xPos - m_rcSplitter.left - m_cxyDragOffset;
else
xyNewSplitPos = yPos - m_rcSplitter.top - m_cxyDragOffset;
if(xyNewSplitPos == -1) // avoid -1, that means middle
xyNewSplitPos = -2;
if(m_xySplitterPos != xyNewSplitPos)
{
if(m_bFullDrag)
{
if(pT->SetSplitterPos(xyNewSplitPos, true))
pT->UpdateWindow();
}
else
{
DrawGhostBar();
pT->SetSplitterPos(xyNewSplitPos, false);
DrawGhostBar();
}
}
}
else // not dragging, just set cursor
{
if(IsOverSplitterBar(xPos, yPos))
::SetCursor(m_hCursor);
bHandled = FALSE;
}
return 0;
}
LRESULT OnLButtonDown(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM lParam, BOOL& bHandled)
{
int xPos = GET_X_LPARAM(lParam);
int yPos = GET_Y_LPARAM(lParam);
if(IsOverSplitterBar(xPos, yPos))
{
T* pT = static_cast<T*>(this);
pT->SetCapture();
::SetCursor(m_hCursor);
if(!m_bFullDrag)
DrawGhostBar();
if(t_bVertical)
m_cxyDragOffset = xPos - m_rcSplitter.left - m_xySplitterPos;
else
m_cxyDragOffset = yPos - m_rcSplitter.top - m_xySplitterPos;
}
bHandled = FALSE;
return 1;
}
LRESULT OnLButtonUp(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& bHandled)
{
::ReleaseCapture();
bHandled = FALSE;
return 1;
}
LRESULT OnLButtonDoubleClick(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
{
T* pT = static_cast<T*>(this);
pT->SetSplitterPos(); // middle
return 0;
}
LRESULT OnCaptureChanged(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
{
if(!m_bFullDrag)
{
DrawGhostBar();
UpdateSplitterLayout();
T* pT = static_cast<T*>(this);
pT->UpdateWindow();
}
return 0;
}
LRESULT OnSetFocus(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM, BOOL& bHandled)
{
if(m_nSinglePane == SPLIT_PANE_NONE)
{
if(m_nDefActivePane == SPLIT_PANE_LEFT || m_nDefActivePane == SPLIT_PANE_RIGHT)
::SetFocus(m_hWndPane[m_nDefActivePane]);
}
else
{
::SetFocus(m_hWndPane[m_nSinglePane]);
}
bHandled = FALSE;
return 1;
}
#ifndef _WIN32_WCE
LRESULT OnMouseActivate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& /*bHandled*/)
{
T* pT = static_cast<T*>(this);
LRESULT lRet = pT->DefWindowProc(uMsg, wParam, lParam);
if(lRet == MA_ACTIVATE || lRet == MA_ACTIVATEANDEAT)
{
DWORD dwPos = ::GetMessagePos();
POINT pt = { GET_X_LPARAM(dwPos), GET_Y_LPARAM(dwPos) };
pT->ScreenToClient(&pt);
RECT rcPane;
for(int nPane = 0; nPane < m_nPanesCount; nPane++)
{
if(GetSplitterPaneRect(nPane, &rcPane) && ::PtInRect(&rcPane, pt))
{
m_nDefActivePane = nPane;
break;
}
}
}
return lRet;
}
#endif // !_WIN32_WCE
LRESULT OnSettingChange(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
{
GetSystemSettings(true);
return 0;
}
// Implementation - internal helpers
void UpdateSplitterLayout()
{
if(m_nSinglePane == SPLIT_PANE_NONE && m_xySplitterPos == -1)
return;
T* pT = static_cast<T*>(this);
RECT rect = { 0, 0, 0, 0 };
if(m_nSinglePane == SPLIT_PANE_NONE)
{
if(GetSplitterBarRect(&rect))
pT->InvalidateRect(&rect);
for(int nPane = 0; nPane < m_nPanesCount; nPane++)
{
if(GetSplitterPaneRect(nPane, &rect))
{
if(m_hWndPane[nPane] != NULL)
::SetWindowPos(m_hWndPane[nPane], NULL, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, SWP_NOZORDER);
else
pT->InvalidateRect(&rect);
}
}
}
else
{
if(GetSplitterPaneRect(m_nSinglePane, &rect))
{
if(m_hWndPane[m_nSinglePane] != NULL)
::SetWindowPos(m_hWndPane[m_nSinglePane], NULL, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, SWP_NOZORDER);
else
pT->InvalidateRect(&rect);
}
}
}
bool GetSplitterBarRect(LPRECT lpRect) const
{
ATLASSERT(lpRect != NULL);
if(m_nSinglePane != SPLIT_PANE_NONE || m_xySplitterPos == -1)
return false;
if(t_bVertical)
{
lpRect->left = m_rcSplitter.left + m_xySplitterPos;
lpRect->top = m_rcSplitter.top;
lpRect->right = m_rcSplitter.left + m_xySplitterPos + m_cxySplitBar + m_cxyBarEdge;
lpRect->bottom = m_rcSplitter.bottom;
}
else
{
lpRect->left = m_rcSplitter.left;
lpRect->top = m_rcSplitter.top + m_xySplitterPos;
lpRect->right = m_rcSplitter.right;
lpRect->bottom = m_rcSplitter.top + m_xySplitterPos + m_cxySplitBar + m_cxyBarEdge;
}
return true;
}
bool GetSplitterPaneRect(int nPane, LPRECT lpRect) const
{
ATLASSERT(nPane == SPLIT_PANE_LEFT || nPane == SPLIT_PANE_RIGHT);
ATLASSERT(lpRect != NULL);
bool bRet = true;
if(m_nSinglePane != SPLIT_PANE_NONE)
{
if(nPane == m_nSinglePane)
*lpRect = m_rcSplitter;
else
bRet = false;
}
else if(nPane == SPLIT_PANE_LEFT)
{
if(t_bVertical)
{
lpRect->left = m_rcSplitter.left;
lpRect->top = m_rcSplitter.top;
lpRect->right = m_rcSplitter.left + m_xySplitterPos;
lpRect->bottom = m_rcSplitter.bottom;
}
else
{
lpRect->left = m_rcSplitter.left;
lpRect->top = m_rcSplitter.top;
lpRect->right = m_rcSplitter.right;
lpRect->bottom = m_rcSplitter.top + m_xySplitterPos;
}
}
else if(nPane == SPLIT_PANE_RIGHT)
{
if(t_bVertical)
{
lpRect->left = m_rcSplitter.left + m_xySplitterPos + m_cxySplitBar + m_cxyBarEdge;
lpRect->top = m_rcSplitter.top;
lpRect->right = m_rcSplitter.right;
lpRect->bottom = m_rcSplitter.bottom;
}
else
{
lpRect->left = m_rcSplitter.left;
lpRect->top = m_rcSplitter.top + m_xySplitterPos + m_cxySplitBar + m_cxyBarEdge;
lpRect->right = m_rcSplitter.right;
lpRect->bottom = m_rcSplitter.bottom;
}
}
else
{
bRet = false;
}
return bRet;
}
bool IsOverSplitterRect(int x, int y) const
{
// -1 == don't check
return ((x == -1 || (x >= m_rcSplitter.left && x <= m_rcSplitter.right)) &&
(y == -1 || (y >= m_rcSplitter.top && y <= m_rcSplitter.bottom)));
}
bool IsOverSplitterBar(int x, int y) const
{
if(m_nSinglePane != SPLIT_PANE_NONE)
return false;
if(m_xySplitterPos == -1 || !IsOverSplitterRect(x, y))
return false;
int xy = t_bVertical ? x : y;
int xyOff = t_bVertical ? m_rcSplitter.left : m_rcSplitter.top;
return ((xy >= (xyOff + m_xySplitterPos)) && (xy < xyOff + m_xySplitterPos + m_cxySplitBar + m_cxyBarEdge));
}
void DrawGhostBar()
{
RECT rect = { 0, 0, 0, 0 };
if(GetSplitterBarRect(&rect))
{
// invert the brush pattern (looks just like frame window sizing)
T* pT = static_cast<T*>(this);
CWindowDC dc(pT->m_hWnd);
CBrush brush (CDCHandle::GetHalftoneBrush().Detach()); //Fix for Borland compiler
if(brush.m_hBrush != NULL)
{
CBrushHandle brushOld = dc.SelectBrush(brush);
dc.PatBlt(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, PATINVERT);
dc.SelectBrush(brushOld);
}
}
}
void GetSystemSettings(bool bUpdate)
{
#ifndef _WIN32_WCE
m_cxySplitBar = ::GetSystemMetrics(t_bVertical ? SM_CXSIZEFRAME : SM_CYSIZEFRAME);
#else // CE specific
m_cxySplitBar = 2 * ::GetSystemMetrics(t_bVertical ? SM_CXEDGE : SM_CYEDGE);
#endif // _WIN32_WCE
T* pT = static_cast<T*>(this);
if((pT->GetExStyle() & WS_EX_CLIENTEDGE))
{
m_cxyBarEdge = 2 * ::GetSystemMetrics(t_bVertical ? SM_CXEDGE : SM_CYEDGE);
m_cxyMin = 0;
}
else
{
m_cxyBarEdge = 0;
m_cxyMin = 2 * ::GetSystemMetrics(t_bVertical ? SM_CXEDGE : SM_CYEDGE);
}
#ifndef _WIN32_WCE
::SystemParametersInfo(SPI_GETDRAGFULLWINDOWS, 0, &m_bFullDrag, 0);
#endif // !_WIN32_WCE
if(bUpdate)
UpdateSplitterLayout();
}
bool IsProportional() const
{
return ((m_dwExtendedStyle & SPLIT_PROPORTIONAL) != 0);
}
void StoreProportionalPos()
{
int cxyTotal = t_bVertical ? (m_rcSplitter.right - m_rcSplitter.left - m_cxySplitBar - m_cxyBarEdge) : (m_rcSplitter.bottom - m_rcSplitter.top - m_cxySplitBar - m_cxyBarEdge);
if(cxyTotal > 0)
m_nProportionalPos = ::MulDiv(m_xySplitterPos, m_nPropMax, cxyTotal);
else
m_nProportionalPos = 0;
ATLTRACE2(atlTraceUI, 0, _T("CSplitterImpl::StoreProportionalPos - %i\n"), m_nProportionalPos);
}
void UpdateProportionalPos()
{
int cxyTotal = t_bVertical ? (m_rcSplitter.right - m_rcSplitter.left - m_cxySplitBar - m_cxyBarEdge) : (m_rcSplitter.bottom - m_rcSplitter.top - m_cxySplitBar - m_cxyBarEdge);
if(cxyTotal > 0)
{
int xyNewPos = ::MulDiv(m_nProportionalPos, cxyTotal, m_nPropMax);
m_bUpdateProportionalPos = false;
T* pT = static_cast<T*>(this);
pT->SetSplitterPos(xyNewPos, false);
}
}
bool IsRightAligned() const
{
return ((m_dwExtendedStyle & SPLIT_RIGHTALIGNED) != 0);
}
void StoreRightAlignPos()
{
int cxyTotal = t_bVertical ? (m_rcSplitter.right - m_rcSplitter.left - m_cxySplitBar - m_cxyBarEdge) : (m_rcSplitter.bottom - m_rcSplitter.top - m_cxySplitBar - m_cxyBarEdge);
if(cxyTotal > 0)
m_nProportionalPos = cxyTotal - m_xySplitterPos;
else
m_nProportionalPos = 0;
ATLTRACE2(atlTraceUI, 0, _T("CSplitterImpl::StoreRightAlignPos - %i\n"), m_nProportionalPos);
}
void UpdateRightAlignPos()
{
int cxyTotal = t_bVertical ? (m_rcSplitter.right - m_rcSplitter.left - m_cxySplitBar - m_cxyBarEdge) : (m_rcSplitter.bottom - m_rcSplitter.top - m_cxySplitBar - m_cxyBarEdge);
if(cxyTotal > 0)
{
m_bUpdateProportionalPos = false;
T* pT = static_cast<T*>(this);
pT->SetSplitterPos(cxyTotal - m_nProportionalPos, false);
}
}
bool IsInteractive() const
{
return ((m_dwExtendedStyle & SPLIT_NONINTERACTIVE) == 0);
}
};
template <class T, bool t_bVertical> HCURSOR CSplitterImpl< T, t_bVertical>::m_hCursor = NULL;
///////////////////////////////////////////////////////////////////////////////
// CSplitterWindowImpl - Implements a splitter window
template <class T, bool t_bVertical = true, class TBase = ATL::CWindow, class TWinTraits = ATL::CControlWinTraits>
class ATL_NO_VTABLE CSplitterWindowImpl : public ATL::CWindowImpl< T, TBase, TWinTraits >, public CSplitterImpl< T , t_bVertical >
{
public:
DECLARE_WND_CLASS_EX(NULL, CS_DBLCLKS, COLOR_WINDOW)
typedef CSplitterImpl< T , t_bVertical > _baseClass;
BEGIN_MSG_MAP(CSplitterWindowImpl)
MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBackground)
MESSAGE_HANDLER(WM_SIZE, OnSize)
CHAIN_MSG_MAP(_baseClass)
FORWARD_NOTIFICATIONS()
END_MSG_MAP()
LRESULT OnEraseBackground(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
{
// handled, no background painting needed
return 1;
}
LRESULT OnSize(UINT /*uMsg*/, WPARAM wParam, LPARAM /*lParam*/, BOOL& bHandled)
{
if(wParam != SIZE_MINIMIZED)
SetSplitterRect();
bHandled = FALSE;
return 1;
}
};
///////////////////////////////////////////////////////////////////////////////
// CSplitterWindow - Implements a splitter window to be used as is
template <bool t_bVertical = true>
class CSplitterWindowT : public CSplitterWindowImpl<CSplitterWindowT<t_bVertical>, t_bVertical>
{
public:
DECLARE_WND_CLASS_EX(_T("WTL_SplitterWindow"), CS_DBLCLKS, COLOR_WINDOW)
};
typedef CSplitterWindowT<true> CSplitterWindow;
typedef CSplitterWindowT<false> CHorSplitterWindow;
}; // namespace WTL
#endif // __ATLSPLIT_H__
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