Rich Text Editor - 源代码

//////////////////////////////////////////////////////////////// // CoolMenu 1997 Microsoft Systems Journal. // If this code works, it was written by Paul DiLascia. // If not, I don't know who wrote it. // // ========================================================================== // HISTORY: // ========================================================================== // 1.01 13 Aug 1998 - Andrew Bancroft [ABancroft@lgc.com] - Since we've already // added the entire toolbar to the imagelist we need to // increment nNextImage even if we didn't add this button to // m_mapIDtoImage in the LoadToolbar() method. // 1.01a 13 Aug 1998 - Peter Tewkesbury - Added AddSingleBitmap(...) // method for adding a single bitmap to a pulldown // menu item. // 1.02 13 Aug 1998 - Omar L Francisco - Fixed bug with lpds->CtlType // and lpds->itemData item checking. // 1.03 12 Nov 1998 - Fixes debug assert in system menu. - Wang Jun // 1.04 17 Nov 1998 - Fixes debug assert when you maximize a view - Wang Jun // window, then try to use the system menu for the view. // 1.05 09 Jan 1998 - Seain B. Conover [sc@tarasoft.com] - Fix for virtual // key names. // 1.06 24 Feb 1999 - Michael Lange [michael.home@topdogg.com] - Fix for memory // leak in CMyItemData structure, added a destructor that // calls text.Empty(). // - Boris Kartamishev [kbv@omegasoftware.com] - Fix for resource // ID bug. // - Jeremy Horgan [jeremyhorgan@hotmail.com] - During // accelerator key processing OnInitMenuPopup() calls // ConvertMenu() which allocates a new CMyItemData for each // menu item. This is memory is normally freed by a call to // OnMenuSelect(), which is not called when processing // accelerator keys. This results in a memory leak. This was // fixed by modifying the ~CCoolMenuManager() destructor. // 1.07 24 Feb 1999 - Koji MATSUNAMI [kmatsu@inse.co.jp] - Fixed problem with // popup menus being drawn correctly as cool menus. // ========================================================================== // ///////////////////////////////////////////////////////////////////////////// #include "StdAfx.h" #include "CoolMenu.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif // helpers void PLFillRect(CDC& dc, const CRect& rc, COLORREF color); void PLDrawEmbossed(CDC& dc, CImageList& il, int i, CPoint p, BOOL bColor=FALSE); HBITMAP PLLoadSysColorBitmap(LPCTSTR lpResName, BOOL bMono=FALSE); inline HBITMAP PLLoadSysColorBitmap(UINT nResID, BOOL bMono=FALSE) { return PLLoadSysColorBitmap(MAKEINTRESOURCE(nResID), bMono); } // if you want to see extra TRACE diagnostics, set below to TRUE BOOL CCoolMenuManager::bTRACE = FALSE; #define safe_delete(p){if(p){delete p;p=NULL;}} #ifdef _DEBUG #define CMTRACEFN \ CTraceFn __fooble; \ if (bTRACE) \ TRACE #define CMTRACE \ if (bTRACE) \ TRACE #else #define CMTRACEFN TRACE #define CMTRACE TRACE #endif // constants used for drawing const CXGAP = 1; // num pixels between button and text const CXTEXTMARGIN = 1;//2; // num pixels after hilite to start text const CXBUTTONMARGIN = 2;//2; // num pixels wider button is than bitmap const CYBUTTONMARGIN = 2;//2; // ditto for height // DrawText flags const DT_MYSTANDARD = DT_SINGLELINE|DT_LEFT|DT_VCENTER; // identifies owner-draw data as mine const LONG MYITEMID = MAKELONG(MAKEWORD(_T('m'),_T('i')),MAKEWORD(_T('d'),_T('0'))); // private struct: one of these for each owner-draw menu item struct CMyItemData { long magicNum; // magic number identifying me CString text; // item text UINT fType; // original item type flags int iButton; // index of button image in image list CMyItemData() { magicNum = MYITEMID; } ~CMyItemData() { text.Empty(); } BOOL IsMyItemData() { return magicNum == MYITEMID; } }; IMPLEMENT_DYNAMIC(CCoolMenuManager, CSubclassWnd) CCoolMenuManager::CCoolMenuManager() { m_szBitmap = m_szButton = CSize(0,0); // will compute later m_bShowButtons = TRUE; // show buttons by default m_bAutoAccel = TRUE; // auto accelerators by default m_hAccel = NULL; // no accelerators loaded yet m_pAccel = NULL; // no accelerators loaded yet m_bUseDrawState = FALSE; // use DrawEmbossed by default m_bDrawDisabledButtonsInColor = FALSE; // use color for disabled buttons FixMFCDotBitmap(); } CCoolMenuManager::~CCoolMenuManager() { // Jeremy Horgan [jeremyhorgan@hotmail.com] while (!m_menuList.IsEmpty()) { ConvertMenu(CMenu::FromHandle((HMENU)m_menuList.RemoveHead()),0, FALSE, FALSE); } Destroy(); } ////////////////// // Destroy everything. Called from destructor and Refresh. // void CCoolMenuManager::Destroy() { m_ilButtons.DeleteImageList(); m_mapIDtoImage.RemoveAll(); m_szBitmap = m_szButton = CSize(0,0); m_arToolbarID.RemoveAll(); m_fontMenu.DeleteObject(); DestroyAccel(); } ///////////////// // Destroy accelerators // void CCoolMenuManager::DestroyAccel() { m_mapIDtoAccel.RemoveAll(); // delete ACCEL entries in map safe_delete(m_pAccel); // delete current accelerators } ////////////////// // Call this to install the menu manager. Install(NULL) to un-install. // void CCoolMenuManager::Install(CFrameWnd* pFrame) { ASSERT_VALID(pFrame); m_pFrame = pFrame; HookWindow(pFrame); // install message hook } ////////////////// // Load array of toolbar IDs. // BOOL CCoolMenuManager::LoadToolbars(const UINT* arID, int n) { ASSERT(arID); BOOL bRet = TRUE; for (int i=0; i<n; i++) bRet |= LoadToolbar(arID[i]); return bRet; } // structure of RT_TOOLBAR resource struct TOOLBARDATA { WORD wVersion; // version # should be 1 WORD wWidth; // width of one bitmap WORD wHeight; // height of one bitmap WORD wItemCount; // number of items WORD items[1]; // array of command IDs, actual size is wItemCount }; ////////////////// // Load one toolbar. Assumes bg color is gray. // // * add toolbar bitmap to image list // * add each button ID to button map // BOOL CCoolMenuManager::LoadToolbar(UINT nIDToolbar) { // load bitmap HBITMAP hbmToolbar = PLLoadSysColorBitmap(nIDToolbar); if (!hbmToolbar) { TRACE(_T("*** Can't load bitmap for toolbar %d!\n"), nIDToolbar); return FALSE; } CBitmap bmToolbar; bmToolbar.Attach(hbmToolbar); // destructor will detach & destroy // load toolbar LPTSTR lpResName = MAKEINTRESOURCE(nIDToolbar); HINSTANCE hInst; HRSRC hRsrc; TOOLBARDATA* ptbd; if ((hInst= AfxFindResourceHandle(lpResName, RT_TOOLBAR)) == NULL || (hRsrc= FindResource(hInst, lpResName, RT_TOOLBAR)) == NULL || (ptbd = (TOOLBARDATA*)LoadResource(hInst, hRsrc)) == NULL) { TRACE(_T("*** Can't load toolbar %d!\n"), nIDToolbar); return FALSE; } ASSERT(ptbd->wVersion==1); // OK, I have the bitmap and toolbar. CSize sz(ptbd->wWidth, ptbd->wHeight); if (m_szBitmap.cx==0) { // First toolbar: initialized bitmap/button sizes and create image list. m_szBitmap = sz; m_szButton = sz + CSize(CXBUTTONMARGIN<<1, CYBUTTONMARGIN<<1); VERIFY(m_ilButtons.Create(sz.cx, sz.cy, ILC_MASK, 0, 10)); } else if (m_szBitmap != sz) { // button sizes different -- oops TRACE(_T("*** Toolbar %d button size differs!\n"), nIDToolbar); return FALSE; } // I have a good toolbar: now add bitmap to the image list, and each // command ID to m_mapIDtoImage array. Note that LoadSysColorBitmap will // change gray -> COLOR_3DFACE, so use that for image list background. // int iNextImage = m_ilButtons.GetImageCount(); m_ilButtons.Add(&bmToolbar, GetSysColor(COLOR_3DFACE)); for (int i = 0; i < ptbd->wItemCount; i++) { UINT nID = p