帶圖標的程序菜單
本文介紹在基於單文檔程序中，如何實現帶圖標的程序菜單。如下：
1.
創建一個單文檔工程：AddIconMenu
2.
這個工程裏面用到了一個類來實現對程序菜單圖標的添加以及顏色的設定等等。添加到工程。頭文件如下：IconMenu.h
// IconMenu1.h: interface for the CIconMenu class.
//
//////////////////////////////////////////////////////////////////////
#if !defined(AFX_ICONMENU1_H__FAA8B855_EE72_4332_96D7_73F8FA07E521__INCLUDED_)
#define AFX_ICONMENU1_H__FAA8B855_EE72_4332_96D7_73F8FA07E521__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
constintMAX_MENUCOUNT = 60,ITEMHEIGHT
= 26,ITEMWIDTH= 120;
//菜單項數量
/*************************************
CMenuItemInfo結構用於記錄菜單項信息
*************************************/
structCMenuItemInfo
{
CStringm_ItemText;//菜單項文本
intm_IconIndex;//菜單項索引
intm_ItemID;//菜單標記
-2頂層菜單,-1彈出式菜單,0分隔條,其他普通菜單
};
classCIconMenu :
publicCMenu
{
public:
CMenuItemInfom_ItemLists[MAX_MENUCOUNT];
//菜單項信息
intm_index;
//臨時索引
intm_iconindex;
CImageListm_imagelist;//存儲菜單項圖標
CIconMenu();
BOOLChangeMenuItem(CMenu*
m_menu,BOOLm_Toped
= FALSE);
BOOL AttatchMenu(HMENUm_hmenu);
voidDrawItemText(CDC*
m_pdc,LPSTRstr,CRectm_rect);
voidDrawTopMenu(CDC*
m_pdc,CRectm_rect,BOOLm_selected
= FALSE);
//繪製頂層菜單
voidDrawSeparater(CDC*
m_pdc,CRectm_rect);//繪製分隔條
voidDrawComMenu(CDC*
m_pdc,CRectm_rect,COLORREFm_fromcolor,COLORREFm_tocolor,
BOOLm_selected =
FALSE);
voidDrawMenuIcon(CDC*
m_pdc,CRectm_rect,intm_icon
);
//override memu's viutual method
virtual ~CIconMenu();
virtualvoidMeasureItem(
LPMEASUREITEMSTRUCTlpStruct );//設置菜單項大小
virtualvoidDrawItem(
LPDRAWITEMSTRUCTlpStruct );//重繪菜單項
};
#endif // !defined(AFX_ICONMENU1_H__FAA8B855_EE72_4332_96D7_73F8FA07E521__INCLUDED_)
實現文件如下：
// IconMenu1.cpp: implementation of the CIconMenu class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
//#include "IconMenu.h"
//#include "IconMenu1.h"
#include "AddIconMenu.h"
#include "IconMenu.h"
#ifdef _DEBUG
#undef THIS_FILE
staticcharTHIS_FILE[]=__FILE__;
#define newDEBUG_NEW
#endif
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CIconMenu::CIconMenu()
{
m_index= 0;
m_iconindex= 0;
//創建圖像列表
m_imagelist.Create(16,16,ILC_COLOR24|ILC_MASK,0,0);
//添加圖標
m_imagelist.Add(AfxGetApp()->LoadIcon(IDI_ICON1));
m_imagelist.Add(AfxGetApp()->LoadIcon(IDI_ICON2));
m_imagelist.Add(AfxGetApp()->LoadIcon(IDI_ICON3));
m_imagelist.Add(AfxGetApp()->LoadIcon(IDI_ICON4));
m_imagelist.Add(AfxGetApp()->LoadIcon(IDI_ICON5));
m_imagelist.Add(AfxGetApp()->LoadIcon(IDI_ICON6));
m_imagelist.Add(AfxGetApp()->LoadIcon(IDI_ICON7));
m_imagelist.Add(AfxGetApp()->LoadIcon(IDI_ICON8));
m_imagelist.Add(AfxGetApp()->LoadIcon(IDI_ICON9));
m_imagelist.Add(AfxGetApp()->LoadIcon(IDI_ICON10));
}
CIconMenu::~CIconMenu()
{
m_imagelist.Detach();
}
BOOL CIconMenu::AttatchMenu(HMENUm_hmenu)
{
this->Attach(m_hmenu);
returnTRUE;
}
BOOLCIconMenu::ChangeMenuItem(CMenu*
m_menu,BOOLm_Toped)
{
if (m_menu
!= NULL)
{
intm_itemcount =
m_menu->GetMenuItemCount();
for (inti=0;i<m_itemcount;i++)
{
m_menu->GetMenuString(i,m_ItemLists[m_index].m_ItemText,MF_BYPOSITION);
intm_itemID =
m_menu->GetMenuItemID(i);
if (m_itemID==-1
&& m_Toped)
{
m_itemID = -2;//頂層菜單
};
m_ItemLists[m_index].m_ItemID
= m_itemID;
if (m_itemID>0)
{
m_ItemLists[m_index].m_IconIndex=
m_iconindex;
m_iconindex+=1;
}
m_menu->ModifyMenu(i,MF_OWNERDRAW|MF_BYPOSITION
|MF_STRING,m_ItemLists[m_index].m_ItemID,(LPSTR)&(m_ItemLists[m_index]));
m_index+=1;
CMenu*
m_subMenu =
m_menu->GetSubMenu(i);
if (m_subMenu)
{
ChangeMenuItem(m_subMenu);
}
}
}
returnTRUE ;
}
voidCIconMenu::MeasureItem(
LPMEASUREITEMSTRUCTlpStruct )
{
if (lpStruct->CtlType==ODT_MENU)
{
lpStruct->itemHeight
= ITEMHEIGHT;
lpStruct->itemWidth
= ITEMWIDTH;
CMenuItemInfo*
m_iteminfo;
m_iteminfo = (CMenuItemInfo*)lpStruct->itemData;
lpStruct->itemWidth
= ((CMenuItemInfo*)lpStruct->itemData)->m_ItemText.GetLength()*10;
switch(m_iteminfo->m_ItemID)
{
case 0:
//分隔條
{
lpStruct->itemHeight = 1;
break;
}
}
}
}
voidCIconMenu::DrawItem(
LPDRAWITEMSTRUCTlpStruct )
{
if (lpStruct->CtlType==ODT_MENU)
{
if(lpStruct->itemData
== NULL)
return;
unsignedintm_state
= lpStruct->itemState;
CDC*
m_dc =
CDC::FromHandle(lpStruct->hDC);
//m_dc.Attach(lpStruct->hDC);
CStringstr = ((CMenuItemInfo*)(lpStruct->itemData))->m_ItemText;
LPSTRm_str =
str.GetBuffer(str.GetLength());
intm_itemID = ((CMenuItemInfo*)(lpStruct->itemData))->m_ItemID;
intm_itemicon = ((CMenuItemInfo*)(lpStruct->itemData))->m_IconIndex;
CRectm_rect =
lpStruct->rcItem;
m_dc->SetBkMode(TRANSPARENT);
switch(m_itemID)
{
case -2:
{
DrawTopMenu(m_dc,m_rect,(m_state&ODS_SELECTED)||(m_state&0x0040));
//0x0040 ==ODS_HOTLIGHT
DrawItemText(m_dc,m_str,m_rect);
break;
}
case -1:
{
DrawItemText(m_dc,m_str,m_rect);
break;
}
case 0:
{
DrawSeparater(m_dc,m_rect);
break;
}
default:
{
DrawComMenu(m_dc,m_rect,0xfaa0,0xf00ff,m_state&ODS_SELECTED);
DrawItemText(m_dc,m_str,m_rect);
DrawMenuIcon(m_dc,m_rect,m_itemicon);
break;
}
}
}
}
/*************************************************************
功能描述:
繪製菜單項文本
參數說明: m_pdc標識畫布對象,str標識菜單文本,m_rect標識菜單區域
*************************************************************/
voidCIconMenu::DrawItemText(CDC*
m_pdc,LPSTRstr,CRectm_rect)
{
m_rect.DeflateRect(20,0);
m_pdc->DrawText(str,m_rect,DT_SINGLELINE|DT_VCENTER|DT_LEFT);
}
voidCIconMenu::DrawTopMenu(CDC*
m_pdc,CRectm_rect,BOOLm_selected
)
{
if (m_selected)
{
m_pdc->SelectStockObject(BLACK_PEN);
m_pdc->Rectangle(&m_rect);
m_rect.DeflateRect(1,1);
m_pdc->FillSolidRect(m_rect,RGB(150,
185, 255));
}
else
{
CRectrect;
AfxGetMainWnd()->GetClientRect(rect);
rect.top
= m_rect.top;
rect.bottom
= m_rect.bottom;
rect.left=
360;
rect.right
+=4;
//CRect c_rect(m_rect);
m_pdc->FillSolidRect(&rect,RGB(200,187,
255));
m_pdc->FillSolidRect(&m_rect,RGB(200,187,
255));
//m_pdc->SelectStockObject(BLACK_PEN);
//m_pdc->FillSolidRect(m_rect,RGB(100, 185, 255));
}
}
voidCIconMenu::DrawSeparater(CDC*
m_pdc,CRectm_rect)
{
if (m_pdc
!= NULL)
{
m_pdc->Draw3dRect(m_rect,RGB(255,0,0),RGB(0,0,255));
}
}
voidCIconMenu::DrawComMenu(CDC*
m_pdc,CRectm_rect,COLORREFm_fromcolor,COLORREFm_tocolor,
BOOLm_selected )
{
if (m_selected)
{
m_pdc->Rectangle(m_rect);
m_rect.DeflateRect(1,1);
intr1,g1,b1;
//讀取漸變起點的顏色值
r1 =
GetRValue(m_fromcolor);
g1 =
GetGValue(m_fromcolor);
b1 =
GetBValue(m_fromcolor);
intr2,g2,b2;
//讀取漸變終點的顏色值
r2 =
GetRValue(m_tocolor);
g2 =
GetGValue(m_tocolor);
b2 =
GetBValue(m_tocolor);
float r3,g3,b3;//菜單區域水平方向每個點RGB值應該變化的度(範圍)
r3 = ((float)(r2-r1))
/ (float)(m_rect.Height());
g3 = (float)(g2-g1)/(float)(m_rect.Height());
b3 = (float)(b2-b1)/(float)(m_rect.Height());
COLORREFr,g,b;//菜單區域水平方向每個點的顏色值
CPen*
m_oldpen ;
for (inti
= m_rect.top;i<m_rect.bottom;i++)
{
r =
r1+(int)r3*(i-m_rect.top);
g =
g1+(int)g3*(i-m_rect.top);
b =
b1+ (int)b3*(i-m_rect.top);
CPenm_pen (PS_SOLID,1,RGB(r,g,b));
m_oldpen =
m_pdc->SelectObject(&m_pen);
m_pdc->MoveTo(m_rect.left,i);
m_pdc->LineTo(m_rect.right,i);
}
m_pdc->SelectObject(m_oldpen);
}
else
{
m_pdc->FillSolidRect(m_rect,RGB(0x000000F9,
0x000000F8, 0x000000F7));
}
}
voidCIconMenu::DrawMenuIcon(CDC*
m_pdc,CRectm_rect,intm_icon
)
{
m_imagelist.Draw(m_pdc,m_icon,CPoint(m_rect.left+2,m_rect.top+4),ILD_TRANSPARENT);
}
當然這裏面需要的圖標資源，自己拷貝到res目錄下即可。
3.
然後在文檔類中添加SetTitle消息，可以修改標題欄信息，如下：
lpszTitle =
"基於單文檔結構的帶圖標的程序菜單";
4. CMainFrame中添加一個上述類的變量：
CIconMenum_Menu;
CMainFrame的OnCreate函數中，添加經過上述類設置的菜單，代碼如下：
m_Menu.AttatchMenu(this->GetMenu()->GetSafeHmenu());
m_Menu.ChangeMenuItem(&m_Menu,TRUE);
this->SetIcon(AfxGetApp()->LoadIcon(IDI_ICON1),TRUE);
this->SetTitle("IconMenuExample");
5.
分別爲CMainFrame添加，如下兩個消息函數WM_DRAWITEM()和WM_MEASUREITEM()，不知道爲什麼，我的消息函數中沒有，所以就手工添加了。在消息映射中添加如下：
ON_WM_DRAWITEM()
ON_WM_MEASUREITEM()
然後添加函數及實現如下：
voidCMainFrame::OnDrawItem(intnIDCtl,
LPDRAWITEMSTRUCTlpDrawItemStruct)
{
m_Menu.DrawItem(lpDrawItemStruct);
}
voidCMainFrame::OnMeasureItem(intnIDCtl,
LPMEASUREITEMSTRUCTlpMeasureItemStruct)
{
m_Menu.MeasureItem(lpMeasureItemStruct);
}
OK，好了，直接運行，即可。