chevbar.cpp

用VC写的浏览器

#include "stdafx.h"
#include "GreenBrowser.h"
#include "ChevBar.h"
#include "ToolMenu.h"
#include "Menudata.h"
#include "MainFrm.h"
#include <wininet.h>

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

/////////////////////////////////////////////////////////////////////////////
// CChevBar

CChevBar::CChevBar()
{
	SetBorders();
}

BEGIN_MESSAGE_MAP(CChevBar, CControlBar)
	//{{AFX_MSG_MAP(CChevBar)
	ON_WM_NCCREATE()
	ON_WM_PAINT()
	ON_WM_NCCALCSIZE()
	ON_WM_ERASEBKGND()
	ON_WM_NCPAINT()
	ON_NOTIFY_REFLECT(RBN_HEIGHTCHANGE, OnHeightChange)
	ON_NOTIFY_REFLECT(RBN_ENDDRAG, OnHeightChange)
	ON_MESSAGE(RB_SHOWBAND, OnShowBand)
	ON_MESSAGE_VOID(WM_RECALCPARENT, OnRecalcParent)
	//}}AFX_MSG_MAP
	ON_NOTIFY_REFLECT( RBN_CHEVRONPUSHED, OnChevronPushed )
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CChevBar

void CChevBar::OnChevronPushed( NMHDR * pNotifyStruct, LRESULT* result )
{
	NMREBARCHEVRON* pChev = (NMREBARCHEVRON*) pNotifyStruct;

	// Has the band of the chevron that generated this message
	int	iBand = pChev->uBand;
	int	FavSize;

	// Have to get the child window handle this band holds
	REBARBANDINFO	rbinfo;
	rbinfo.cbSize = sizeof(rbinfo);
	rbinfo.fMask = RBBIM_CHILD | RBBIM_ID;
	GetReBarCtrl().GetBandInfo ( iBand, &rbinfo );

	// Check if the child window is a toolbar
	// Some rebar bands may have other windows, so that is left as an exercise
	// to the user :-)
	CToolBar *pTBar = (CToolBar *)CToolBar::FromHandle ( rbinfo.hwndChild );
	ASSERT(pTBar);
	ASSERT(pTBar->IsKindOf(RUNTIME_CLASS(CToolBar)));

	// Create a popup menu to show hidden buttons
	CToolMenu	pop;
	pop.CreatePopupMenu ();

	// The CToolMenu uses the toolbar pointer to get associated text and image
	// information. If there is a better way please do so.
	// This menu was created with local scope, hence the temp pointer
	// pTBar can be stored i guess...
	pop.m_pImg = pTBar->GetToolBarCtrl().GetImageList();

	// We have to determine the hidden buttons
	//	1. Obtain band rectangle (subtract chevron width if you want to)
	//	2. Get the button rectangle
	//	3. Check if the intersecting rectangle is same as the button rectangle
	//	4. If they intersect then the button is shown

	CRect rectTool;
	pTBar->GetWindowRect(&rectTool);

	// It depends on the user to decide if this subtraction is necessary, if they feel
	// happy about the chevron hiding a part of a button then remove this code
	CRect rectChevron;
	rectChevron = pChev->rc;

	// Screen co-ordinates for Menu to be displayed
	CPoint	ptMenu;
	ptMenu.x = rectChevron.left;
	ptMenu.y = rectChevron.bottom;
	ClientToScreen ( &ptMenu );

	// This flag indicates if atleast one has been added to the menu
	// POPUP Menu is shown only if atleast one item has to be shown
	BOOL	bAtleastOne=FALSE;
	int iCount, iButtonCount = pTBar->GetToolBarCtrl().GetButtonCount();
	UINT iStyle, id;
	for ( iCount = 0 ; iCount < iButtonCount ; iCount++ )
	{
		// Get the id of the toolbar button
		id = pTBar->GetItemID( iCount );
		// If the button is a separator then we can also add a separator to the
		// popup menu
		if (  pTBar->GetButtonStyle ( iCount ) & TBSTYLE_SEP )
		{
			// It wouldnt be nice if there is a separator as the first item in the menu
			if ( bAtleastOne )
				pmf->MenuAppendSeparator(&pop); //pop.AppendMenu ( MF_SEPARATOR );
		}
		else
		{
			// Get the button rectangle
			CRect rectButton;
			pTBar->GetItemRect ( iCount, &rectButton );
			// Check the intersection of the button and the band
			//CRect interRect;
			//interRect.IntersectRect ( &rectButton, &rectBand );

			// if the intersection is not the same as button then
			// the button is not completely visible, so add to menu
			//if ( rectButton.right >= rectBand.right-10 )
			if ( rectButton.right >= rectTool.Width() )
			{
				UINT	iMenuStyle;
				
				// Have to reflect the state of the menu item, so check the state of the 
				// button and enable or disable the items
				if ( pTBar->GetToolBarCtrl().IsButtonEnabled ( id ) )
					iMenuStyle = MF_ENABLED;
				else
					iMenuStyle = MF_DISABLED;
				if ( pTBar->GetToolBarCtrl().IsButtonPressed ( id ) || pTBar->GetToolBarCtrl().IsButtonChecked ( id ))
					iMenuStyle |= MF_CHECKED;
				// Add the item to the menu with the id of the toolbar button
				// This id is used to notify the parent if the user selects that item
				CMenuData * md= new CMenuData;
				md->m_pImgList = pop.m_pImg;
				if(rbinfo.wID == ID_VIEW_LINKS)
				{
					if( id == ID_LINK_POPUP)
					{
						iMenuStyle |= MF_POPUP;
						TBBUTTON tbb;
						if( pTBar->GetToolBarCtrl().GetButton( iCount,  &tbb ))
						{
							if(IsMenu((HMENU)tbb.dwData))
							{
								pTBar->GetButtonInfo ( iCount, id, iStyle, md->m_nBitmap);
								SetMenuText(g_astrLinks[iCount], md);
								HMENU hmenu= CopyMenu((HMENU)tbb.dwData);
								pop.AppendMenu ( iMenuStyle|MF_OWNERDRAW, (UINT)hmenu, (char*)md );//spaces+g_astrLinks[iCount-1]
							}
							else
								delete md;
						}
					}
					else
					{
						pTBar->GetButtonInfo ( iCount, id, iStyle, md->m_nBitmap);
						SetMenuText(g_astrLinks[iCount], md);
						pop.AppendMenu ( iMenuStyle|MF_OWNERDRAW, id , (char*)md );
					}
				}
				else if(rbinfo.wID == ID_VIEW_FAVS)
				{
					if(id == ID_FAV_POPUP)
					{
						FavSize=pmf->m_nFavSize;
						iMenuStyle |= MF_POPUP;
						TBBUTTON tbb;
						if( pTBar->GetToolBarCtrl().GetButton( iCount,  &tbb ))
						{
							if(IsMenu((HMENU)tbb.dwData))
							{
								pTBar->GetButtonInfo ( iCount, id, iStyle, md->m_nBitmap);
								SetMenuText(g_astrFavs[iCount], md);
								HMENU hmenu= CopyMenu((HMENU)tbb.dwData);
								pop.AppendMenu ( iMenuStyle|MF_OWNERDRAW, (UINT)hmenu, (char*)md );//spaces+g_astrLinks[iCount-1]
							}
							else
								delete md;
						}
					}
					else if ( pmf->m_bFavShowUrl )
					{
						pTBar->GetButtonInfo ( iCount, id, iStyle, md->m_nBitmap);
						SetMenuText(g_astrFavs[iCount], md);
						pop.AppendMenu ( iMenuStyle|MF_OWNERDRAW, id , (char*)md );
					}
				}
				else if(rbinfo.wID == ID_VIEW_EX_TOOL)
				{
					pTBar->GetButtonInfo ( iCount, id, iStyle, md->m_nBitmap);
					SetMenuText(pmf->m_ExternalUtilList.m_UtilList.GetAt(iCount)->m_strUtilName, md);
					pop.AppendMenu ( iMenuStyle|MF_OWNERDRAW, id , (char*)md );
				}
				else if(rbinfo.wID == ID_VIEW_TOOLBAR)
				{
					LOADSTR(strText,id);
					if ( strText.GetLength() )
					{
						int iPos = strText.Find ( '\n', 0 );
						if ( iPos != -1 )
						{
							strText = strText.Mid( iPos+1 );
						}
					}
					if( pTBar->GetButtonStyle ( iCount ) & TBSTYLE_DROPDOWN && (id!= ID_EDIT_EDIT && id!=ID_TOOLS_EMAIL && id!=ID_GO_BACK && id!=ID_GO_FORWARD) || id == ID_GROUP)
					{
						iMenuStyle |= MF_POPUP;
						TBBUTTON tbb;
						if( pTBar->GetToolBarCtrl().GetButton( iCount,  &tbb ))
						{
							pTBar->GetButtonInfo ( iCount, id, iStyle, md->m_nBitmap);
							SetMenuText(strText, md);
							CMenu menu;
							CMenu* pPopup;
							if(id== ID_FILE_SAVEAS)
							{
								pPopup = SMP_SAVE;
							}
							else if(id == ID_FONT_DROPDOWN)
							{
								pPopup = SMP_FONTS;
							}
							else if (id == ID_ENCODE_DROPDOWN)
							{
								pPopup = SMP_ENCODE;
							}
							else if(id== ID_NEWWINDOW)
							{
								pPopup = pmf->GetMenu()->GetSubMenu(0)->GetSubMenu(0);
							}
							else if(id== ID_TOOLS_EXTERNAL_AUTORUN)
							{
								pPopup = SMP_EXTOOLS;
							}
							else if(id== ID_TOOLS_SETBG)
							{
								pPopup = SMP_BGCOLOR;
							}
							else if(id== ID_GROUP)
							{
								g_bRTab=0;
								pPopup = SMP_GROUP;
							}
							else if(id== ID_OPTIONS_LOADIMAGE)
							{
								pPopup = SMP_DOWNLOAD;
							}
							else if(id== ID_TOOLS_AUTOSCROLL_USEAUTOSCROLLING)
							{
								pPopup = SMP_AUTOSCROLL;
							}
							else if(id== ID_EDIT_UNDOCLOSE)
							{
								pPopup = SMP_UNDO;
							}
							else if(id== ID_TOOLS_ALL)
							{
								pPopup = SMP_CLEAN;
							}
							else if(id== ID_SC_FILLFORM)
							{
								pPopup = SMP_AUTOFILL;
							}
							else if(id == ID_OPTIONS_USE_PROXY)
							{
								menu.CreatePopupMenu();
								pmf->BuildProxyMenu(&menu);
								pPopup = &menu;
							}
							else if(id == ID_OPTIONS_USE_WEBP)
							{
								menu.CreatePopupMenu();
								pmf->BuildWebProxyMenu(&menu, 2);
								pPopup = &menu;
							}
							else if(id == ID_GO_UP_PAGE)
							{
								menu.CreatePopupMenu();
								pmf->BuildGoUpMenu(&menu);
								pPopup = &menu;
							}

							HMENU hmenu = CopyMenu(pPopup->m_hMenu);
							pop.AppendMenu ( iMenuStyle|MF_OWNERDRAW, (UINT)hmenu, (char*)md );
							menu.DestroyMenu();
						}
					}
					else
					{
						pTBar->GetButtonInfo ( iCount, id, iStyle, md->m_nBitmap);
						SetMenuText(strText, md);
						pop.AppendMenu ( iMenuStyle|MF_OWNERDRAW, id , (char*)md );
					}
				}
				else if(rbinfo.wID == ID_MENU_BAR)
				{
					if(pmf!=NULL)
					{
						pmf->GetMenu()->GetMenuString(iCount, str, MF_BYPOSITION);
						CMenu * pPopup;
						pPopup = pmf->GetMenu()->GetSubMenu(iCount);
						if(pPopup!=NULL)
						{
							HMENU hmenu = CopyMenu(pPopup->m_hMenu);
							pmf->MenuAppendOwnerItem( &pop, MF_POPUP, (UINT)hmenu, str );
						}
					}
				}
				// Yeah, have added one, so can show the menu
				bAtleastOne=TRUE;
			}
		}
	}
	// Show the menu if atleast one item has been added
	if ( bAtleastOne )
		pop.TrackPopupMenu ( TPM_LEFTALIGN|TPM_TOPALIGN, ptMenu.x, ptMenu.y, pmf);

	if(rbinfo.wID == ID_VIEW_FAVS)
		pmf->m_nFavSize=FavSize;

	// Delete our menu
	pop.DestroyMenu ();