ListView 自定义外观的一种实现

houzh 2008-02-05 11:38:06

本文通过重载WM_NOTIFY消息,实现ListView外观的自定义.
实现结果为奇偶数分别采用不同的背景颜色.同时最后一列加入了一个时钟图标.
该代码为本人的GUI系统(MiniWin)在数字电视机顶盒中的部分实现代码
需要学习WIN32-API开发的人可以参考,可惜CSDN不能够上传图片
其中IDC_EPGSCHEDULE为Listview控件的ID



	case WM_NOTIFY:

		{

			NMHDR *nmhdr = (PVOID)lParam;

			if(nmhdr->code==TCN_SELCHANGE){

				DoServiceChange(hwnd);

			}

			if(nmhdr->idFrom ==IDC_EPGSCHEDULE){

				if(nmhdr->code == NM_CUSTOMDRAW) {

					NMLVCUSTOMDRAW *nmlvcd = (PVOID)nmhdr;

					SYSTEMTIME stnow;

					FILETIME ft;

					switch(nmlvcd->nmcd.dwDrawStage) {

					case CDDS_PREPAINT:

						return CDRF_NOTIFYITEMDRAW;

					case CDDS_ITEMPREPAINT:

						GetLocalTime(&stnow);

						SystemTimeToFileTime(&stnow,&ft);

						if(nmlvcd->nmcd.lItemlParam<ft.dwLowDateTime){

							if(nmlvcd->nmcd.uItemState!=0)

								nmlvcd->clrTextBk =CLR_DEFAULT;

							else{

								nmlvcd->clrTextBk =RGB(200,200,200);

							}

							return CDRF_DODEFAULT;

						}

						return CDRF_NOTIFYSUBITEMDRAW;

					case CDDS_ITEMPREPAINT | CDDS_SUBITEM:

						if(nmlvcd->nmcd.dwItemSpec%2){

							nmlvcd->clrTextBk =CLR_DEFAULT;

						}else

							nmlvcd->clrTextBk =RGB(200,200,250);

						return CDRF_NOTIFYPOSTPAINT;

					case CDDS_ITEMPOSTPAINT | CDDS_SUBITEM:

						if(nmlvcd->iSubItem==3){

							BITMAP bmp;

							RECT rc=nmlvcd->nmcd.rc;

							HBITMAP hobmp,hbm=LoadBitmap(hInstDVBRes,MAKEINTRESOURCE(IDB_CLOCK));

							HDC hmdc=CreateCompatibleDC(nmlvcd->nmcd.hdc);

							hobmp=(HBITMAP)SelectObject(hmdc,(HGDIOBJ)hbm);

							GetObject((HGDIOBJ)hbm,sizeof(BITMAP),&bmp);

							BitBlt(nmlvcd->nmcd.hdc,rc.left,

								rc.top+(RECTH(&rc)-bmp.bmHeight)/2,24,24,hmdc,0,0,SRCCOPY);

							SelectObject(hmdc,(HGDIOBJ)hobmp);

							DeleteObject((HGDIOBJ)hbm);

							DeleteDC(hmdc);

							return CDRF_SKIPDEFAULT;

						}

						return CDRF_DODEFAULT;

					}

					return CDRF_DODEFAULT;

				}else if(nmhdr->code==LVN_ITEMCHANGED){

					LPNMLISTVIEW lv=(LPNMLISTVIEW)lParam;

					SetWindowLong(lv->hdr.hwndFrom,GWL_USERDATA,lv->iItem);

				}else if(nmhdr->code==LVN_KEYDOWN){

					LPNMLVKEYDOWN lk=(LPNMLVKEYDOWN)lParam;

					CHAR desc[256];

					LVITEM itm;	

					itm.mask=LVIF_TEXT;

					itm.iItem=GetWindowLong(lk->hdr.hwndFrom,GWL_USERDATA);

					itm.iSubItem=3;

					itm.pszText=desc;

					itm.cchTextMax=256;

					ListView_GetItem(lk->hdr.hwndFrom,&itm);

					if(lk->wVKey==VK_RETURN)

						MessageBox(hwnd,desc,"节目简介",0);

				}

			}

		}break;