cnpopupmenu.cpp

模拟popo的一个程序

// GfxPopupMenu.cpp: implementation of the CNPopupMenu class.
//
// Modified a lot by Zhang Yong
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"

#include "CNPopupMenu.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CNPopupMenu::CNPopupMenu()
{
	crMenuText = GetSysColor(COLOR_MENUTEXT);
	crMenuTextSel = GetSysColor(COLOR_HIGHLIGHTTEXT);

	cr3dFace = GetSysColor(COLOR_3DFACE);
	crMenu = GetSysColor(COLOR_MENU);
	crHighlight = GetSysColor(COLOR_HIGHLIGHT);
	cr3dHilight = GetSysColor(COLOR_3DHILIGHT);
	cr3dShadow = GetSysColor(COLOR_3DSHADOW);
	crGrayText = GetSysColor(COLOR_GRAYTEXT);

	m_clrBtnFace = GetSysColor(COLOR_BTNFACE);
	m_clrBtnHilight = GetSysColor(COLOR_BTNHILIGHT);
	m_clrBtnShadow = GetSysColor(COLOR_BTNSHADOW);

	iSpawnItem = 0;
	pSpawnItem = NULL;

	iImageItem = 0;
	pImageItem = NULL;

	hMenuFont = NULL;
/*	COLORMAP cMap[3] = { 
		{ RGB(128,128,128), cr3dShadow }, 
		{ RGB(192,192,192), cr3dFace }, 
		{ RGB(255,255,255), cr3dHilight }
	};
	CBitmap bmp;
	bmp.LoadMappedBitmap(IDB_MENUCHK, 0, cMap, 3);
	ilOther.Create(19, 19, ILC_COLOR4|ILC_MASK, 1, 0);
	ilOther.Add(&bmp, cr3dFace);
	bmp.DeleteObject();
*/
	NONCLIENTMETRICS ncm;
	memset(&ncm, 0, sizeof(ncm));
	ncm.cbSize = sizeof(ncm);

	::SystemParametersInfo(SPI_GETNONCLIENTMETRICS, 0, (PVOID) &ncm, 0);

	hGuiFont = ::CreateFontIndirect(&ncm.lfMenuFont);

	// David 08/04/98 - start - bold font handling
	hMenuBoldFont = NULL;
	CreateBoldFont();
	// David 08/04/98 - end - bold font handling

	ilList.Create(16, 16, ILC_MASK | ILC_COLOR8, 5, 15);
	szImage = CSize(16, 16);

	// @@
	vertDrawn = FALSE;
}

CNPopupMenu::~CNPopupMenu()
{
	if (iSpawnItem > 0)
	{
		for (int t = 0; t < iSpawnItem; t++)
			if (pSpawnItem[t]) delete pSpawnItem[t];

		GlobalFree((HGLOBAL) pSpawnItem);
	}
	if (iImageItem > 0)
	{
		GlobalFree((HGLOBAL) pImageItem);
	}
	if (hMenuFont) ::DeleteObject((HGDIOBJ)hMenuFont);
	if (hMenuBoldFont) ::DeleteObject((HGDIOBJ)hMenuBoldFont);
}

void CNPopupMenu::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
//	CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
//	CRect rcItem(lpDrawItemStruct->rcItem);
//	pDC->FillSolidRect(rcItem, RGB(255,0,0));
	if (lpDrawItemStruct->CtlType == ODT_MENU)
	{
		UINT id = lpDrawItemStruct->itemID;
		UINT state = lpDrawItemStruct->itemState;
		bool bEnab = !(state & ODS_DISABLED);
		bool bSelect = (state & ODS_SELECTED) ? true : false;
		bool bChecked = (state & ODS_CHECKED) ? true : false;
		// David 08/04/98 - start - bold font handling
		bool bBold = (state & ODS_DEFAULT) ? true : false;
		// David 08/04/98 - end - bold font handling

		SpawnItem * pItem = (SpawnItem *) lpDrawItemStruct->itemData;
		if (pItem)
		{
			CDC * pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
			CFont * pft;
			// David 08/04/98 - start - bold font handling
			if (!bBold) pft = CFont::FromHandle((HFONT) hMenuFont ? hMenuFont : hGuiFont);
			else pft = CFont::FromHandle((HFONT) hMenuBoldFont ? hMenuBoldFont : hGuiFont);
			// David 08/04/98 - end - bold font handling
			CFont * of = pDC->SelectObject(pft);

			CRect rc(lpDrawItemStruct->rcItem);

			// @@
			if (bmVert.m_hObject) {
				BITMAP bm;
				bmVert.GetBitmap(&bm);
				if ((lpDrawItemStruct->itemAction & ODA_DRAWENTIRE) && !vertDrawn) {
					vertDrawn = TRUE;

					CDC dcMem;
					dcMem.CreateCompatibleDC(pDC);
					CBitmap *bmOld = dcMem.SelectObject(&bmVert);
					pDC->SelectClipRgn(NULL);
					CRect rcWhole;
					pDC->GetClipBox(rcWhole);
					pDC->BitBlt(0, 0, bm.bmWidth, bm.bmHeight, &dcMem,
						0, bm.bmHeight - rcWhole.Height(), SRCCOPY);
				}
				rc.left += bm.bmWidth;
			}

			CRect rcImage(rc), rcText(rc);
			rcImage.right = rcImage.left + rc.Height();
			rcImage.bottom = rc.bottom;

			if (pItem->iCmd == -3) // is a separator
			{
				CPen pnDk(PS_SOLID,1,cr3dShadow);
				CPen pnLt(PS_SOLID,1,cr3dHilight);
				CPen * opn = pDC->SelectObject(&pnDk);
				pDC->MoveTo(rc.left + 2, rc.top + 2);
				pDC->LineTo(rc.right - 2, rc.top + 2);
				pDC->SelectObject(&pnLt);
				pDC->MoveTo(rc.left + 2, rc.top + 3);
				pDC->LineTo(rc.right - 2, rc.top + 3);
				pDC->SelectObject(opn);
			}
/*			else if (pItem->iCmd == -4) // is a title item
			{
				CString cs(pItem->cText), cs1;
				CRect rcBdr(rcText);

				if (bSelect && bEnab)
				{
					rcText.top ++;
					rcText.left += 2;
				}
				pDC->FillSolidRect(rcText, crMenu);
				pDC->DrawText(cs, rcText, DT_VCENTER|DT_CENTER|DT_SINGLELINE);
				if (bSelect && bEnab) pDC->Draw3dRect(rcBdr,cr3dShadow,cr3dHilight);
			}*/
			else
			{
				rcText.left = rcImage.right + 1;

				int obk = pDC->SetBkMode(TRANSPARENT);
				
				COLORREF ocr;
				if (bSelect)
				{
					if (pItem->iImageIdx >= 0 || (state & ODS_CHECKED))
						//pDC->FillSolidRect(rcText, crHighlight);
						pDC->Draw3dRect(rcText, cr3dShadow, cr3dHilight);	// @@
					else
						//pDC->FillSolidRect(rc, crHighlight);
						pDC->Draw3dRect(rc, cr3dShadow, cr3dHilight);		// @@

					//ocr = pDC->SetTextColor(crMenuTextSel);
					ocr = pDC->SetTextColor(crHighlight);	// @@
				}
				else
				{
					if (pItem->iImageIdx >= 0 || (state & ODS_CHECKED))
						pDC->FillSolidRect(rcText, crMenu);
					else
						pDC->FillSolidRect(rc/*rcText*/, crMenu);
					ocr = pDC->SetTextColor(crMenuText);
				}

				if (pItem->iImageIdx >= 0)
				{
					int ay = (rcImage.Height() - szImage.cy) / 2;
					int ax = (rcImage.Width()  - szImage.cx) / 2;

					if (bSelect && bEnab)
						pDC->Draw3dRect(rcImage,cr3dHilight,cr3dShadow);
					else
					{
						pDC->Draw3dRect(rcImage,crMenu,crMenu);
					}


					if (bEnab)
					{
						ilList.Draw(pDC, pItem->iImageIdx, CPoint(rcImage.left + ax, rcImage.top +ay), ILD_NORMAL);
					}
					else
					{
						HICON hIcon = ilList.ExtractIcon( pItem->iImageIdx );
						pDC->DrawState( CPoint(rcImage.left + ax, rcImage.top + ay ), szImage, (HICON)hIcon, DST_ICON | DSS_DISABLED, (CBrush *)NULL );
						DestroyIcon(hIcon);		// @@
					}
				}
				else
				{
					if (bChecked)
					{
						int ay = (rcImage.Height() - szImage.cy) / 2;
						int ax = (rcImage.Width()  - szImage.cx) / 2;

						ilOther.Draw(pDC, 0, CPoint(rcImage.left + ax, rcImage.top + ay - 2), ILD_NORMAL);
					}
				}

				CString cs(pItem->cText), cs1;
				if (cs.Compare("dummy") == 0)
					pItem = pItem;

				CSize sz;
				sz = pDC->GetTextExtent(cs);
				int ay1 = (rcText.Height() - sz.cy) / 2;
				rcText.top += ay1;
				rcText.left += 2;
				rcText.right -= 15;

				int tf = cs.Find('\t');
				if (tf >= 0)
				{
					cs1 = cs.Right(cs.GetLength() - tf - 1);
					cs = cs.Left(tf);
					if (!bEnab)
					{
						if (!bSelect)
						{
							CRect rcText1(rcText);
							rcText1.InflateRect(-1,-1);
							pDC->SetTextColor(cr3dHilight);
							pDC->DrawText(cs, rcText1, DT_VCENTER|DT_LEFT);
							pDC->DrawText(cs1, rcText1, DT_VCENTER|DT_RIGHT);
							pDC->SetTextColor(crGrayText);
							pDC->DrawText(cs, rcText, DT_VCENTER|DT_LEFT);
							pDC->DrawText(cs1, rcText, DT_VCENTER|DT_RIGHT);
						}
						else
						{
							pDC->SetTextColor(crMenu);
							pDC->DrawText(cs, rcText, DT_VCENTER|DT_LEFT);
							pDC->DrawText(cs1, rcText, DT_VCENTER|DT_RIGHT);
						}
					}
					else
					{
						pDC->DrawText(cs, rcText, DT_VCENTER|DT_LEFT);
						pDC->DrawText(cs1, rcText, DT_VCENTER|DT_RIGHT);
					}
				}
				else 
				{
					if (!bEnab)
					{
//						if (!bSelect)	// @@
						{
							CRect rcText1(rcText);
							rcText1.InflateRect(-1,-1);
							pDC->SetTextColor(cr3dHilight);
							pDC->DrawText(cs, rcText1, DT_VCENTER|DT_LEFT|DT_EXPANDTABS);
							pDC->SetTextColor(crGrayText);
							pDC->DrawText(cs, rcText, DT_VCENTER|DT_LEFT|DT_EXPANDTABS);
						}
/*						else
						{
							pDC->SetTextColor(crMenu);
							pDC->DrawText(cs, rcText, DT_VCENTER|DT_LEFT|DT_EXPANDTABS);
						}*/
					}
					else
						pDC->DrawText(cs, rcText, DT_VCENTER|DT_LEFT|DT_EXPANDTABS);
				}
				pDC->SetTextColor(ocr);
				pDC->SetBkMode(obk);
			}

			pDC->SelectObject(of);
		}
	}
}

void CNPopupMenu::MeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct)
{
//	lpMeasureItemStruct->itemWidth = 200;
//	lpMeasureItemStruct->itemHeight = 25;
	bool res = false;
	if (lpMeasureItemStruct->CtlType == ODT_MENU)
	{
		UINT id = lpMeasureItemStruct->itemID;

		SpawnItem * pItem = (SpawnItem *) lpMeasureItemStruct->itemData;
		if (pItem)
		{
			if (pItem->iCmd == -3) // is a separator
			{
				lpMeasureItemStruct->itemWidth  = 10;
				lpMeasureItemStruct->itemHeight = 6;
			}
			else
			{
				CString cs(pItem->cText);
				if (!cs.IsEmpty())
				{
					CClientDC dc(AfxGetMainWnd());
					CFont * pft = CFont::FromHandle(hMenuFont ? hMenuFont : hGuiFont);
					CFont * of = dc.SelectObject(pft);
					CSize osz = dc.GetOutputTabbedTextExtent(cs,0,NULL);
					// @@
					/*if (pItem->iCmd == -4)
					{
						CRect rci(0,0,0,0);
						dc.DrawText(cs, rci, DT_CALCRECT|DT_TOP|DT_VCENTER|DT_SINGLELINE);
						lpMeasureItemStruct->itemHeight = rci.Height();
						lpMeasureItemStruct->itemWidth = rci.Width();
					}
					else*/
					{
						lpMeasureItemStruct->itemHeight = szImage.cy + 5;
						if (osz.cy > (int) lpMeasureItemStruct->itemHeight) lpMeasureItemStruct->itemHeight = (int) osz.cy;
						lpMeasureItemStruct->itemWidth  = osz.cx + 2 + 15;
						lpMeasureItemStruct->itemWidth += lpMeasureItemStruct->itemHeight > (UINT) szImage.cx ? (UINT) lpMeasureItemStruct->itemHeight : (UINT) szImage.cx;
					}
					dc.SelectObject(of);
				}