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417 lines
11 KiB
417 lines
11 KiB
//=======================================================================
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//
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// Copyright (c) 1998-1999 Microsoft Corporation. All Rights Reserved.
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//
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// File: Link.h
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//
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// Owner: a-josem
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//
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// Description:
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//
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// Static control subclassing Class used to display links.
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//
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//
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//=======================================================================
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#pragma once
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#include <stdlib.h>
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#include <malloc.h>
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#include "windowsx.h"
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#include "tchar.h"
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#include "htmlhelp.h"
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#include <shellapi.h>
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#include <safefunc.h>
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#include "mistsafe.h"
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const TCHAR strObjPtr[] = TEXT("strSysLinkObjPtr");
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const struct
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{
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enum { cxWidth = 32, cyHeight = 32 };
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int xHotSpot;
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int yHotSpot;
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unsigned char arrANDPlane[cxWidth * cyHeight / 8];
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unsigned char arrXORPlane[cxWidth * cyHeight / 8];
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} _Link_CursorData =
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{
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5, 0,
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{
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0xF9, 0xFF, 0xFF, 0xFF, 0xF0, 0xFF, 0xFF, 0xFF, 0xF0, 0xFF, 0xFF, 0xFF, 0xF0, 0xFF, 0xFF, 0xFF,
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0xF0, 0xFF, 0xFF, 0xFF, 0xF0, 0x3F, 0xFF, 0xFF, 0xF0, 0x07, 0xFF, 0xFF, 0xF0, 0x01, 0xFF, 0xFF,
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0xF0, 0x00, 0xFF, 0xFF, 0x10, 0x00, 0x7F, 0xFF, 0x00, 0x00, 0x7F, 0xFF, 0x00, 0x00, 0x7F, 0xFF,
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0x80, 0x00, 0x7F, 0xFF, 0xC0, 0x00, 0x7F, 0xFF, 0xC0, 0x00, 0x7F, 0xFF, 0xE0, 0x00, 0x7F, 0xFF,
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0xE0, 0x00, 0xFF, 0xFF, 0xF0, 0x00, 0xFF, 0xFF, 0xF0, 0x00, 0xFF, 0xFF, 0xF8, 0x01, 0xFF, 0xFF,
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0xF8, 0x01, 0xFF, 0xFF, 0xF8, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
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},
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{
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0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00,
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0x06, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x06, 0xC0, 0x00, 0x00, 0x06, 0xD8, 0x00, 0x00,
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0x06, 0xDA, 0x00, 0x00, 0x06, 0xDB, 0x00, 0x00, 0x67, 0xFB, 0x00, 0x00, 0x77, 0xFF, 0x00, 0x00,
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0x37, 0xFF, 0x00, 0x00, 0x17, 0xFF, 0x00, 0x00, 0x1F, 0xFF, 0x00, 0x00, 0x0F, 0xFF, 0x00, 0x00,
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0x0F, 0xFE, 0x00, 0x00, 0x07, 0xFE, 0x00, 0x00, 0x07, 0xFE, 0x00, 0x00, 0x03, 0xFC, 0x00, 0x00,
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0x03, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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}
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};
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class CSysLink
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{
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public:
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CSysLink(BOOL fIsHtmlHelp= TRUE):/*bInit(FALSE),*/m_OrigWndProc(NULL),m_lpstrLabel(NULL), m_lpstrHyperLink(NULL),m_hWnd(NULL),
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m_hCursor(NULL), m_hFont(NULL), /* m_bPaintLabel(true),*/ m_clrLink(RGB(0, 0, 255)), m_PaintedFocusRect(false), m_IsHtmlHelp(fIsHtmlHelp)
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{
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SetRectEmpty(&m_rcLink);
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}
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~CSysLink()
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{
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#if 0
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free(m_lpstrLabel);
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free(m_lpstrHyperLink);
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if(m_hFont != NULL)
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::DeleteObject(m_hFont);
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if(m_hCursor != NULL)
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::DestroyCursor(m_hCursor);
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#endif
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}
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void Uninit()
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{
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SafeFreeNULL(m_lpstrLabel);
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SafeFreeNULL(m_lpstrHyperLink);
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if(m_hFont != NULL)
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{
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::DeleteObject(m_hFont);
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m_hFont = NULL;
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}
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if(m_hCursor != NULL)
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{
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::DestroyCursor(m_hCursor);
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m_hCursor = NULL;
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}
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}
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void Init()
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{
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LONG ctrlstyle = GetWindowLong(m_hWnd,GWL_STYLE);
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ctrlstyle |= SS_NOTIFY;
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SetWindowLongPtr(m_hWnd,GWL_STYLE,ctrlstyle);
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HWND wnd = GetParent(m_hWnd);
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HFONT hFont = (HFONT)SendMessage(wnd,WM_GETFONT,0,0);
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/* if(m_bPaintLabel) */
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{
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if(hFont != NULL)
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{
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LOGFONT lf;
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GetObject(hFont, sizeof(LOGFONT), &lf);
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lf.lfUnderline = TRUE;
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m_hFont = CreateFontIndirect(&lf);
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}
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}
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// set label (defaults to window text)
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if(m_lpstrLabel == NULL)
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{
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int nLen = GetWindowTextLength(m_hWnd);
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if(nLen > 0)
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{
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LPTSTR lpszText = (LPTSTR)malloc((nLen+1)*sizeof(TCHAR));
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if(NULL != lpszText && GetWindowText(m_hWnd,lpszText, nLen+1))
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SetLabel(lpszText);
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SafeFree(lpszText);
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}
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}
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// set hyperlink (defaults to label)
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if(m_lpstrHyperLink == NULL && m_lpstrLabel != NULL)
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SetHyperLink(m_lpstrLabel);
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CalcLabelRect();
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}
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void SubClassWindow(HWND hWnd)
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{
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if (SetProp(hWnd, strObjPtr, (HANDLE)this))
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{
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// bInit = TRUE;
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m_hWnd = hWnd;
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m_OrigWndProc = (WNDPROC) SetWindowLongPtr(hWnd,GWLP_WNDPROC,(LONG_PTR)CSysLink::_SysLinkWndProc);
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}
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Init();
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}
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static INT_PTR CALLBACK _SysLinkWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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CSysLink *pThis = (CSysLink *)GetProp(hwnd, strObjPtr);
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// if (NULL != pThis)
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// {
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switch(uMsg)
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{
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HANDLE_MSG(hwnd, WM_ERASEBKGND, pThis->_OnEraseBkgnd);
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HANDLE_MSG(hwnd, WM_PAINT, pThis->_OnPaint);
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HANDLE_MSG(hwnd, WM_SETFOCUS, pThis->_OnFocus);
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HANDLE_MSG(hwnd, WM_KILLFOCUS, pThis->_OnFocus);
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HANDLE_MSG(hwnd, WM_MOUSEMOVE, pThis->_OnMouseMove);
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HANDLE_MSG(hwnd, WM_LBUTTONDOWN, pThis->_OnLButtonDown);
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HANDLE_MSG(hwnd, WM_LBUTTONUP, pThis->_OnLButtonUp);
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HANDLE_MSG(hwnd, WM_CHAR, pThis->_OnChar);
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HANDLE_MSG(hwnd, WM_GETDLGCODE, pThis->_OnGetDlgCode);
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HANDLE_MSG(hwnd, WM_SETCURSOR, pThis->_OnSetCursor);
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}
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// }
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return CallWindowProc(pThis->m_OrigWndProc, hwnd,uMsg,wParam,lParam);
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}
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BOOL Invalidate(BOOL bErase = TRUE)
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{
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return InvalidateRect(m_hWnd, NULL, bErase);
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}
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BOOL Navigate()
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{
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if (m_IsHtmlHelp == TRUE)
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HtmlHelp(NULL,m_lpstrHyperLink,HH_DISPLAY_TOPIC,NULL);
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else
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{
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ShellExecute(0, _T("open"), m_lpstrHyperLink, 0, 0, SW_SHOWNORMAL);
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}
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return TRUE;
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}
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void SetSysLinkInstanceHandle(HINSTANCE hInstance)
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{
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m_hInstance = hInstance;
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m_hCursor = ::CreateCursor(hInstance, _Link_CursorData.xHotSpot, _Link_CursorData.yHotSpot, _Link_CursorData.cxWidth, _Link_CursorData.cyHeight, _Link_CursorData.arrANDPlane, _Link_CursorData.arrXORPlane);
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}
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public: //Message Handlers
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BOOL _OnSetCursor(HWND hwnd, HWND hwndCursor, UINT codeHitTest, UINT msg)
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{
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POINT pt;
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GetCursorPos(&pt);
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ScreenToClient(m_hWnd,&pt);
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if(m_lpstrHyperLink != NULL && ::PtInRect(&m_rcLink, pt))
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{
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return TRUE;
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}
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return (BOOL)CallWindowProc(m_OrigWndProc, hwnd,WM_SETCURSOR,(WPARAM)hwndCursor,MAKELPARAM(codeHitTest,msg));
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}
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UINT _OnGetDlgCode(HWND hwnd, LPMSG lpmsg)
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{
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return DLGC_WANTCHARS;
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}
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void _OnMouseMove(HWND hwnd, int x, int y, UINT keyFlags)
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{
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POINT pt = { x, y};
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if(m_lpstrHyperLink != NULL && PtInRect(&m_rcLink, pt))
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SetCursor(m_hCursor);
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}
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void _OnFocus(HWND hwnd, HWND hwndOldFocus)
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{
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Invalidate();
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}
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void _OnLButtonDown(HWND hwnd, BOOL fDoubleClick, int x, int y, UINT keyFlags)
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{
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POINT pt = { x, y };
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if(PtInRect(&m_rcLink, pt))
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{
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SetFocus(m_hWnd);
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SetCapture(m_hWnd);
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}
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}
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void _OnPaint(HWND hwnd)
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{
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PAINTSTRUCT ps;
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HDC hDC = BeginPaint(hwnd, &ps);
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m_hWnd = hwnd;
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DoPaint(hDC);
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EndPaint(hwnd, &ps);
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}
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void _OnChar(HWND hwnd, TCHAR ch, int cRepeat)
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{
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if(ch == VK_RETURN || ch == VK_SPACE)
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Navigate();
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}
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BOOL _OnEraseBkgnd(HWND hwnd, HDC hdc)
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{
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/* if(m_bPaintLabel)*/
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{
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HBRUSH hBrush = (HBRUSH)::SendMessage(GetParent(hwnd), WM_CTLCOLORSTATIC, (WPARAM)hdc, (LPARAM)m_hWnd);
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if(hBrush != NULL)
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{
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RECT rect;
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GetClientRect(m_hWnd, &rect);
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FillRect(hdc, &rect, hBrush);
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}
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}
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return 1;
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}
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void _OnLButtonUp(HWND hwnd, int x, int y, UINT keyFlags)
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{
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if(GetCapture() == m_hWnd)
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{
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ReleaseCapture();
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POINT pt = { x, y };
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if(PtInRect(&m_rcLink, pt))
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Navigate();
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}
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}
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void DoPaint(HDC hDC)
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{
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if (m_PaintedFocusRect)
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{
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m_PaintedFocusRect = false;
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DrawFocusRect(hDC, &m_rcLink);
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}
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SetBkMode(hDC, TRANSPARENT);
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SetTextColor(hDC, m_clrLink);
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if(m_hFont != NULL)
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SelectFont(hDC, m_hFont);
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LPTSTR lpstrText = (m_lpstrLabel != NULL) ? m_lpstrLabel : m_lpstrHyperLink;
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LONG_PTR dwStyle = GetWindowLongPtr(m_hWnd,GWL_STYLE);
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int nDrawStyle = DT_LEFT;
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if (dwStyle & SS_CENTER)
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nDrawStyle = DT_CENTER;
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else if (dwStyle & SS_RIGHT)
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nDrawStyle = DT_RIGHT;
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DrawText(hDC, lpstrText, -1, &m_rcLink, nDrawStyle | DT_WORDBREAK);
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if((GetFocus() == m_hWnd)&&(!m_PaintedFocusRect))
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{
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m_PaintedFocusRect = true;
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DrawFocusRect(hDC, &m_rcLink);
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}
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}
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bool CalcLabelRect()
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{
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if(m_lpstrLabel == NULL && m_lpstrHyperLink == NULL)
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return false;
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HDC hDC = GetDC(m_hWnd);
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RECT rect;
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GetClientRect(m_hWnd, &rect);
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m_rcLink = rect;
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HFONT hOldFont = NULL;
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if(m_hFont != NULL)
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hOldFont = SelectFont(hDC, m_hFont);
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LPTSTR lpstrText = (m_lpstrLabel != NULL) ? m_lpstrLabel : m_lpstrHyperLink;
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DWORD dwStyle = (DWORD)GetWindowLongPtr(m_hWnd,GWL_STYLE);
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int nDrawStyle = DT_LEFT;
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if (dwStyle & SS_CENTER)
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nDrawStyle = DT_CENTER;
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else if (dwStyle & SS_RIGHT)
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nDrawStyle = DT_RIGHT;
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DrawText(hDC, lpstrText, -1, &m_rcLink, nDrawStyle | DT_WORDBREAK | DT_CALCRECT);
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if(m_hFont != NULL)
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SelectFont(hDC, hOldFont);
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return true;
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}
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bool SetLabel(LPCTSTR lpstrLabel)
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{
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free(m_lpstrLabel);
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m_lpstrLabel = NULL;
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int ilen = lstrlen(lpstrLabel) + 1;
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m_lpstrLabel = (LPTSTR)malloc(ilen * sizeof(TCHAR));
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if(m_lpstrLabel == NULL)
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return false;
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//lstrcpy(m_lpstrLabel, lpstrLabel);
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if (FAILED(StringCchCopyEx(m_lpstrLabel, ilen, lpstrLabel, NULL, NULL, MISTSAFE_STRING_FLAGS)))
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{
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free(m_lpstrLabel);
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m_lpstrLabel = NULL;
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return false;
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}
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CalcLabelRect();
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return true;
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}
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#if 0
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bool GetLabel(LPTSTR lpstrBuffer, int nLength)
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{
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if (NULL != m_lpstrLabel &&
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nLength > lstrlen(m_lpstrLabel) &&
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SUCCEEDED(StringCchCopyEx(lpstrBuffer, nLength, m_lpstrLabel, NULL, NULL, MISTSAFE_STRING_FLAGS)))
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{
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return true;
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}
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return false;
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}
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#endif
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bool SetHyperLink(LPCTSTR lpstrLink)
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{
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free(m_lpstrHyperLink);
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m_lpstrHyperLink = NULL;
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int ilen = lstrlen(lpstrLink) + 1;
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m_lpstrHyperLink = (LPTSTR)malloc(ilen * sizeof(TCHAR));
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if(m_lpstrHyperLink == NULL)
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return false;
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if (FAILED(StringCchCopyEx(m_lpstrHyperLink, ilen, lpstrLink, NULL, NULL, MISTSAFE_STRING_FLAGS)))
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{
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free(m_lpstrHyperLink);
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m_lpstrHyperLink = NULL;
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return false;
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}
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if(m_lpstrLabel == NULL)
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CalcLabelRect();
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return true;
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}
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#if 0
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bool GetHyperLink(LPTSTR lpstrBuffer, int nLength)
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{
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if (NULL != m_lpstrHyperLink &&
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nLength > lstrlen(m_lpstrHyperLink) &&
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SUCCEEDED(StringCchCopyEx(lpstrBuffer, nLength, m_lpstrHyperLink, NULL, NULL, MISTSAFE_STRING_FLAGS)))
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{
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return true;
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}
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return false;
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}
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#endif
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private:
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// BOOL bInit;
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BOOL m_IsHtmlHelp;
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HWND m_hWnd;
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WNDPROC m_OrigWndProc;
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LPTSTR m_lpstrLabel;
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LPTSTR m_lpstrHyperLink;
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HCURSOR m_hCursor;
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// bool m_bPaintLabel;
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HFONT m_hFont;
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RECT m_rcLink;
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bool m_PaintedFocusRect;
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COLORREF m_clrLink; //set once
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HINSTANCE m_hInstance;
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};
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