// VerticalLine.cpp: implementation of the CVerticalLine class.
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//
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//////////////////////////////////////////////////////////////////////
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#include "stdafx.h"
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#include "VerticalLine.h"
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#ifdef _DEBUG
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#undef THIS_FILE
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static char THIS_FILE[]=__FILE__;
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#define new DEBUG_NEW
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#endif
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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CVerticalLine::CVerticalLine()
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{
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m_hWnd = NULL;
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m_crBkgnd = RGB(255, 255, 255);
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m_crLineColor = RGB(222, 222, 222);
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m_bEnableResize = FALSE;
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}
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CVerticalLine::~CVerticalLine()
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{
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}
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BOOL CVerticalLine::RegisterWndClass()
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{
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WNDCLASS wc;
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wc.lpszClassName = BYVERTICALLINE_CLASS;
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wc.hInstance = AfxGetInstanceHandle();
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wc.lpfnWndProc = WindowProc;
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wc.hCursor = ::LoadCursor(NULL, IDC_ARROW);
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wc.hIcon = 0;
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wc.lpszMenuName = NULL;
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wc.hbrBackground = NULL;
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wc.style = CS_GLOBALCLASS|CS_DBLCLKS;
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wc.cbClsExtra = 0;
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wc.cbWndExtra = 0;
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// ×¢²á×Ô¶¨ÒåÀà
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return (::RegisterClass(&wc) != 0);
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}
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CVerticalLine* CVerticalLine::Hook(HWND hWnd)
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{
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CVerticalLine* pVerticalLine = (CVerticalLine*)GetProp(hWnd, BYSTAG_VERTICALLINE);
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if(pVerticalLine == NULL)
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{
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pVerticalLine = new CVerticalLine;
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pVerticalLine->m_hWnd = hWnd;
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SetProp(hWnd, BYSTAG_VERTICALLINE, (HANDLE)pVerticalLine);
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}
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return pVerticalLine;
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}
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void CVerticalLine::Release()
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{
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// delete
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delete this;
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}
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void CVerticalLine::Notify(int nCode, int dwData, int dwData1/* = 0*/, int dwData2/* = 0*/)
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{
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HWND hParent;
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hParent = GetParent(m_hWnd);
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if(hParent != NULL) {
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BYVERTICALLINE_NMHDR iii_nmhdr;
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iii_nmhdr.nmhdr.hwndFrom = m_hWnd;
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iii_nmhdr.nmhdr.idFrom = GetWindowLong(m_hWnd, GWL_ID);
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iii_nmhdr.nmhdr.code = nCode;
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iii_nmhdr.dwData = dwData;
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iii_nmhdr.dwData1 = dwData1;
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iii_nmhdr.dwData2 = dwData2;
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SendMessage(hParent, WM_NOTIFY, (WPARAM)iii_nmhdr.nmhdr.idFrom, (LPARAM)&iii_nmhdr);
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}
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}
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////////////////////////////////
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// À¹½Ø´°¿ÚÏûÏ¢º¯Êý
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LRESULT CALLBACK CVerticalLine::WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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CVerticalLine* pVerticalLine = (CVerticalLine *)GetProp(hWnd, BYSTAG_VERTICALLINE);
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if(pVerticalLine == NULL && uMsg != WM_NCCREATE)
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{
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return ::DefWindowProc(hWnd, uMsg, wParam, lParam);
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}
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// Èç¹ûHookÔòÏìÓ¦ÏûÏ¢
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ASSERT(hWnd);
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switch(uMsg)
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{
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case WM_NCCREATE:
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return OnNcCreate(hWnd, wParam, lParam);
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case WM_DESTROY:
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return pVerticalLine->OnDestroy(wParam, lParam);
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case WM_PAINT:
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return pVerticalLine->OnPaint(wParam, lParam);
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case WM_TIMER:
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return pVerticalLine->OnTimer(wParam, lParam);
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case WM_SETCURSOR:
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return pVerticalLine->OnSetCursor(wParam, lParam);
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case WM_LBUTTONDOWN:
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return pVerticalLine->OnLButtonDown(wParam, lParam);
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case WM_GETDLGCODE:
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return DLGC_WANTALLKEYS;
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default:
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break;
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}
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return ::DefWindowProc(hWnd, uMsg, wParam, lParam);
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}
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///////////////////////////////
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// WM_NCCREATE
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// ´°¿Ú´´½¨Ç°µÄ³õʼ»¯¹¤×÷
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LRESULT CVerticalLine::OnNcCreate(HWND hWnd, WPARAM wParam, LPARAM lParam)
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{
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CVerticalLine* pVerticalLine = (CVerticalLine *)GetProp(hWnd, BYSTAG_VERTICALLINE);
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ASSERT(pVerticalLine == NULL);
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Hook(hWnd);
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return ::DefWindowProc(hWnd, WM_NCCREATE, wParam, lParam);
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}
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///////////////////////////////
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// WM_DESTROY
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LRESULT CVerticalLine::OnDestroy(WPARAM wParam, LPARAM lParam)
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{
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Release();
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return ::DefWindowProc(m_hWnd, WM_DESTROY, wParam, lParam);
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}
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///////////////////////////////
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// WM_TIMER
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LRESULT CVerticalLine::OnTimer(WPARAM wParam, LPARAM lParam)
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{
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return ::DefWindowProc(m_hWnd, WM_TIMER, wParam, lParam);
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}
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///////////////////////////////
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// WM_SETCURSOR
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LRESULT CVerticalLine::OnSetCursor(WPARAM wParam, LPARAM lParam)
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{
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if(m_bEnableResize) {
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SetCursor(::LoadCursor(NULL, IDC_SIZEWE));
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return TRUE;
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}
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return ::DefWindowProc(m_hWnd, WM_SETCURSOR, wParam, lParam);
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}
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/*
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* WM_LBUTTONDOWN
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* Êó±ê×ó¼ü°´ÏÂ
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*/
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LRESULT CVerticalLine::OnLButtonDown(WPARAM wParam, LPARAM lParam)
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{
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if (!m_bEnableResize) {
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return ::DefWindowProc(m_hWnd, WM_LBUTTONDOWN, wParam, lParam);
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}
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POINT pt, ptNew;
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pt.x = LOWORD(lParam);
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pt.y = HIWORD(lParam);
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int nMoveX = 0;
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// ²¶×½Êó±êÏûÏ¢£¬¼ì²âÊÇ·ñÍ϶¯
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RECT rcParent, rcWindows;
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GetClientRect(m_hWnd, &rcWindows);
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::ClientToScreen(m_hWnd, (LPPOINT)&rcWindows);
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::ClientToScreen(m_hWnd, (LPPOINT)&rcWindows.right);
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GetClientRect(GetParent(m_hWnd), &rcParent);
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::ClientToScreen(GetParent(m_hWnd), (LPPOINT)&rcParent);
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HDC hDC = GetDC(GetDesktopWindow());
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::DrawFocusRect(hDC, &rcWindows);
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if (::GetCapture() == NULL) {
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SetCapture(m_hWnd);
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ASSERT(m_hWnd == GetCapture());
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AfxLockTempMaps();
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for (;;) {
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MSG msg;
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VERIFY(::GetMessage(&msg, NULL, 0, 0));
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if (GetCapture() != m_hWnd) break;
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switch (msg.message)
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{
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case WM_MOUSEMOVE:
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ptNew = msg.pt;
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if (ptNew.x < rcParent.left) ptNew.x = rcParent.left;
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::DrawFocusRect(hDC, &rcWindows);
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rcWindows.left = ptNew.x - 3;
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rcWindows.right = ptNew.x + 3;
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::DrawFocusRect(hDC, &rcWindows);
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::ScreenToClient(m_hWnd, &ptNew);
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break;
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case WM_LBUTTONUP:
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ptNew = msg.pt;
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::ScreenToClient(m_hWnd, &ptNew);
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nMoveX = ptNew.x - pt.x;
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goto ExitLoop;
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case WM_KEYDOWN:
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if (msg.wParam == VK_ESCAPE) {
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goto ExitLoop;
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}
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break;
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default:
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DispatchMessage(&msg);
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break;
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}
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}
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ExitLoop:
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::DrawFocusRect(hDC, &rcWindows);
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ReleaseDC(GetDesktopWindow(), hDC);
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ReleaseCapture();
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::InvalidateRect(m_hWnd, NULL, TRUE);
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Notify((int)BYVERTICALLINE_MOVEX, nMoveX);
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AfxUnlockTempMaps(FALSE);
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}
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return ::DefWindowProc(m_hWnd, WM_LBUTTONDOWN, wParam, lParam);
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}
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///////////////////////////////
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// WM_PAINT
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LRESULT CVerticalLine::OnPaint(WPARAM wParam, LPARAM lParam)
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{
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HDC hDC, hMemDC;
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HBITMAP hBitmap;
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RECT rcClient;
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CString strText;
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HFONT hFont;
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HBRUSH hBrushBK;
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// BeginPaint
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PAINTSTRUCT ps;
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hDC = BeginPaint(m_hWnd, &ps);
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GetClientRect(m_hWnd, &rcClient);
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hMemDC = ::CreateCompatibleDC(hDC);
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hBitmap = ::CreateCompatibleBitmap(hDC, rcClient.right-rcClient.left,
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rcClient.bottom-rcClient.top);
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::SelectObject(hMemDC, hBitmap);
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hFont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
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::SelectObject(hMemDC, hFont);
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// ±³¾°ÑÕÉ«
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hBrushBK = CreateSolidBrush( m_crBkgnd );
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::FillRect(hMemDC, &rcClient, hBrushBK);
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DeleteObject(hBrushBK);
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// »Ïß
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HPEN hPen = CreatePen(PS_SOLID, 1, m_crLineColor);
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HPEN hOldPen = (HPEN)::SelectObject(hMemDC, hPen);
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::MoveToEx(hMemDC, rcClient.right-1, 0, NULL);
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LineTo(hMemDC, rcClient.right - 1, rcClient.bottom);
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::SelectObject(hMemDC, hOldPen);
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// EndPaint
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::BitBlt(hDC, 0, 0, rcClient.right-rcClient.left, rcClient.bottom-rcClient.top,
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hMemDC, 0, 0, SRCCOPY);
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EndPaint(m_hWnd, &ps);
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::DeleteObject(hBitmap);
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::DeleteDC(hMemDC);
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return 1;
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}
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void CVerticalLine::SetBkgndColor(COLORREF cr)
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{
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m_crBkgnd = cr;
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}
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void CVerticalLine::SetLineColor(COLORREF cr)
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{
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m_crLineColor = cr;
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}
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void CVerticalLine::EnableResize()
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{
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m_bEnableResize = TRUE;
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}
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void CVerticalLine::DisableResize()
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{
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m_bEnableResize = FALSE;
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}
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