对话框控件自动布局类

// LayoutTabCtrl.cpp : 实现文件 // #include "stdafx.h" #include "AutoLayout.h" /* *创建一个子布局 *pane( 布局模式 ）布局模式可以是横向（HORIZONTAL）或者是纵向（VERTICAL） */ CLayoutMgr::CPane& CLayoutMgr::pane( AutoLayoutPaneMode pm ) { CPane * pPane = new CPane( pm ); ASSERT( pPane != NULL ); return * pPane; } /* *设定具体某一个控件的布局 *item( 控件ID, 调整模式 ) 调整模式可以是： * 自由 GREEDY 默认的，可以在任意方向上调整 * 绝对横向 ABSOLUTE_HORZ 只在纵向上调整 * 绝对纵向 ABSOLUTE_VERT 只在横向上调整 * 不调整 NORESIZE 保持控件原始大小，不予调整 */ CLayoutMgr::CItem& CLayoutMgr::item( CWnd * pWnd, AutoLayoutResizeMode rm /* = GREEDY */ ) { ASSERT ( pWnd != NULL ); CItem * pItem = new CItem( pWnd, rm ); ASSERT ( pItem != NULL ); return *pItem; } /* *创建一个空白区域 *Growing( 布局模式， 相当于多少个可调空间 ) *参数1、布局模式可以是横向（HORIZONTAL）或者是纵向（VERTICAL） * 指定该空白区域横向调整或纵向调整 *参数2、当为1时，相当于一个可调控件所占的大小 * 当为2时，相当于二个可调控件所占的大小 ..................................... */ CLayoutMgr::CGrowing& CLayoutMgr::Growing( AutoLayoutPaneMode pm ,int nSize /* = 1 */ ) { ASSERT ( nSize > 0 ); CGrowing * pGrowing = new CGrowing( pm, nSize ); ASSERT ( pGrowing != NULL ); return *pGrowing; } /* *创建一个带有静态组控件的空间 *GroupPane( 静态组控件ID， 布局模式 ) *布局模式可以是横向（HORIZONTAL）或者是纵向（VERTICAL） */ CLayoutMgr::CGroupPane& CLayoutMgr::GroupPane( CWnd * pWnd, AutoLayoutPaneMode pm ) { ASSERT ( pWnd != NULL ); CGroupPane * pPane = new CGroupPane( pWnd, pm ); ASSERT ( pPane != NULL ); return *pPane; } ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// CLayoutMgr::CPane::CPane( AutoLayoutPaneMode pm ) : m_pm( pm ) { } CLayoutMgr::CPane::~CPane() { while( m_ChildList.GetCount() ) { delete m_ChildList.RemoveTail(); } } CLayoutMgr::CPane& CLayoutMgr::CPane::operator << ( CPane &pe ) { m_ChildList.AddTail( &pe) ; return *this; } CLayoutMgr::CPane& CLayoutMgr::CPane::operator << ( CItem &it ) { m_ChildList.AddTail( &it ); return *this; } /* *将一个空间调整到指定的位置和尺寸 */ void CLayoutMgr::CPane::ResizeWindow( CRect rect ) { POSITION pos; CSize ms; long gd; gd = GetGreedyCount( m_pm ); //计算空间内有多少需要调整的控件 if( gd != 0 ) { //计算需要调整的控件的大小 公式为：需要调整的控件的大小 ＝ （空间总大小 － 空间内所有控件的固定大小 - 所需要的边框大小 ） / 需调整控件的数量 if( m_pm == HORIZONTAL ) gd = ( rect.Width() - GetFixedSize().cx - nBorder * ( m_ChildList.GetCount()-1 )) / gd; else gd = ( rect.Height() - GetFixedSize().cy - nBorder * ( m_ChildList.GetCount()-1 )) / gd; } for( pos = m_ChildList.GetHeadPosition(); pos; m_ChildList.GetNext( pos )) { CElement * pE = m_ChildList.GetAt( pos ); ms = pE->GetFixedSize(); //获取该控件（空间）所需要的最小空间尺寸 //调整该控件（空间） if( m_pm == HORIZONTAL ) { rect.right = rect.left + max( pE->GetGreedyCount( HORIZONTAL ) * gd, ms.cx ); pE->ResizeWindow( &rect ); rect.left = rect.right + nBorder; } else { rect.bottom = rect.top + max( pE->GetGreedyCount( VERTICAL ) * gd, ms.cy ); pE->ResizeWindow( &rect ); rect.top = rect.bottom + nBorder; } } } /* *获取空间的最小需要尺寸 */ CSize CLayoutMgr::CPane::GetFixedSize() { CSize mSize; CSize sz( 0, 0 ); long minX = 0, minY = 0, minMaxX = 0, minMaxY = 0; POSITION pos; BOOL flag = FALSE; for( pos = m_ChildList.GetHeadPosition(); pos; m_ChildList.GetNext( pos )) { CElement * pE = m_ChildList.GetAt( pos ); sz = pE->GetFixedSize(); if( pE->GetKind() == KIND_ITEM ) { if( m_pm == VERTICAL && sz.cx == 0 ) { flag = TRUE; } if( m_pm == HORIZONTAL && sz.cy == 0 ) { flag = TRUE; } } minX += sz.cx; minY += sz.cy; if( minMaxX < sz.cx ) minMaxX = sz.cx; if( minMaxY < sz.cy ) minMaxY = sz.cy; } if( m_pm == HORIZONTAL ) mSize.SetSize( minX, flag ? 0 : minMaxY); else mSize.SetSize( flag ? 0 : minMaxX, minY ); return mSize; } /* *获取空间内部需要调整的控件数量 */ long CLayoutMgr::CPane::GetGreedyCount( AutoLayoutPaneMode pm ) { long gd = 0; POSITION pos; for( pos = m_ChildList.GetHeadPosition(); pos; m_ChildList.GetNext( pos )) { CElement * pE = m_ChildList.GetAt( pos ); if( pm == m_pm ) gd += pE->GetGreedyCount( pm ); else { if( pE->GetGreedyCount( pm )) return 1; } } return gd; } void CLayoutMgr::CPane::ShowWindow( int nCmd /* = SW_SHOW */ ) { POSITION pos; for( pos = m_ChildList.GetHeadPosition(); pos; m_ChildList.GetNext( pos )) { CElement * pE = m_ChildList.GetAt( pos ); pE->ShowWindow( nCmd ); } } BOOL CLayoutMgr::CPane::IsWindowVisible() { if( m_ChildList.GetCount() == 0 ) return FALSE; else return ( m_ChildList.GetHead()->IsWindowVisible()); } CLayoutMgr::ElementKind CLayoutMgr::CPane::GetKind() { return KIND_PANE; } ///////////////////////////////////////////////////////////////////////////////////////////////////////////////// CLayoutMgr::CItem::CItem( CWnd * pWnd, AutoLayoutResizeMode rm ) : m_pWnd( pWnd ), m_rm( rm ) { } CLayoutMgr::CItem::~CItem() { } /* *调整控件到指定的位置和尺寸 */ void CLayoutMgr::CItem::ResizeWindow( CRect rect ) { CRect rt; m_pWnd->GetWindowRect( & rt ); if( m_rm & ABSOLUTE_VERT ) rect.bottom = rect.top + rt.Height(); if( m_rm & ABSOLUTE_HORZ ) rect.right = rect.left + rt.Width(); m_pWnd->MoveWindow( &rect, TRUE ); } /* *获取控件所需要的最小尺寸 */ CSize CLayoutMgr::CItem::GetFixedSize() { CRect rt; CSize mSize; mSize.SetSize( 0, 0 ); m_pWnd->GetWindowRect( &rt ); if( m_rm & ABSOLUTE_VERT ) mSize.cy = rt.Height(); if( m_rm & ABSOLUTE_HORZ ) mSize.cx = rt.Width(); return mSize; } /* *计算该控件是否在特定方向上是可调的 */ long CLayoutMgr::CItem::GetGreedyCount( AutoLayoutPaneMode pm ) { if( m_rm == GREEDY ) return 1; if( m_rm == NORESIZE ) return 0; if( pm == HORIZONTAL ) { if( m_rm == ABSOLUTE_VERT ) return 1; } else { if( m_rm == ABSOLUTE_HORZ ) return 1; } return 0; } void CLayoutMgr::CItem::ShowWindow( int nCmd /* = SW_SHOW */ ) { m_pWnd->ShowWindow( nCmd ); } BOOL CLayoutMgr::CItem::IsWindowVisible() { return m_pWnd->IsWindowVisible(); } CLayoutMgr::ElementKind CLayoutMgr::CItem::GetKind() { return KIND_ITEM; } ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// CLayoutMgr::CGrowing::CGrowing( AutoLayoutPaneMode pm, int nSize ) : CItem( NULL, GREEDY ), m_pm ( pm ), m_nSize( nSize ) { m_nShowCmd = SW_SHOW; } CSize CLayoutMgr::CGrowing::GetFixedSize() { CSize mSize; if( m_pm == HORIZONTAL ) { m_rm = ABSOLUTE_VERT; mSize.SetSize( 0, 1 ); } else { m_rm = ABSOLUTE_HORZ; mSize.SetSize( 1, 0 ); } return mSize; } long CLayoutMgr::CGrowing::GetGreedyCount( AutoLayoutPaneMode pm ) { if( pm == m_pm ) return m_nSize; else return 0; } void CLayoutMgr::CGrowing::ResizeWindow( CRect rect ) { //不做任何事情 } void CLayoutMgr::CGrowing::ShowWindow( int nCmd /* = SW_SHOW */ ) { m_nShowCmd = nCmd; } BOOL CLayoutMgr::CGrowing::IsWindowVisible() { return ( m_nShowCmd == SW_SHOW ); } ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// CLayoutMgr::CGroupPane::CGroupPane( CWnd * pWnd, AutoLayoutPaneMode pm ) : CPane( pm ), m_pWnd( pWnd ) { } CLayoutMgr::CGroupPane::~CGroupPane() { } void CLayoutMgr::CGroupPane::ResizeWindow( CRect rt ) { if( m_pWnd ) m_pWnd->MoveWindow( &rt ); //移动静态组控件到指定位