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[xy_vsfilter.git] / src / ui / CmdUI / CmdUI.cpp

/* 
 *      Copyright (C) 2003-2006 Gabest
 *      http://www.gabest.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *   
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *   
 *  You should have received a copy of the GNU General Public License
 *  along with GNU Make; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 
 *  http://www.gnu.org/copyleft/gpl.html
 *
 */

// CmdUIDialog.cpp : implementation file
//

#include "stdafx.h"
#include <afxpriv.h>
#include "CmdUI.h"

// CCmdUIDialog dialog

IMPLEMENT_DYNAMIC(CCmdUIDialog, CDialog)

CCmdUIDialog::CCmdUIDialog()
{
}

CCmdUIDialog::CCmdUIDialog(UINT nIDTemplate, CWnd* pParent /*=NULL*/)
        : CDialog(nIDTemplate, pParent)
{
}

CCmdUIDialog::CCmdUIDialog(LPCTSTR lpszTemplateName, CWnd* pParentWnd)
        : CDialog(lpszTemplateName, pParentWnd)
{
}

CCmdUIDialog::~CCmdUIDialog()
{
}

LRESULT CCmdUIDialog::DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
        LRESULT ret = __super::DefWindowProc(message, wParam, lParam);

        if(message == WM_INITDIALOG)
        {
                SendMessage(WM_KICKIDLE);
        }

        return(ret);
}

BEGIN_MESSAGE_MAP(CCmdUIDialog, CDialog)
        ON_MESSAGE_VOID(WM_KICKIDLE, OnKickIdle)
        ON_WM_INITMENUPOPUP()
END_MESSAGE_MAP()


// CCmdUIDialog message handlers

void CCmdUIDialog::OnKickIdle()
{
        UpdateDialogControls(this, false);

        // TODO: maybe we should send this call to modeless child cdialogs too
}

// Q242577

void CCmdUIDialog::OnInitMenuPopup(CMenu *pPopupMenu, UINT nIndex,BOOL bSysMenu)
{
    ASSERT(pPopupMenu != NULL);
    // Check the enabled state of various menu items.

    CCmdUI state;
    state.m_pMenu = pPopupMenu;
    ASSERT(state.m_pOther == NULL);
    ASSERT(state.m_pParentMenu == NULL);

    // Determine if menu is popup in top-level menu and set m_pOther to
    // it if so (m_pParentMenu == NULL indicates that it is secondary popup).
    HMENU hParentMenu;
    if (AfxGetThreadState()->m_hTrackingMenu == pPopupMenu->m_hMenu)
        state.m_pParentMenu = pPopupMenu;    // Parent == child for tracking popup.
    else if ((hParentMenu = ::GetMenu(m_hWnd)) != NULL)
    {
        CWnd* pParent = this;
           // Child windows don't have menus--need to go to the top!
        if (pParent != NULL &&
           (hParentMenu = ::GetMenu(pParent->m_hWnd)) != NULL)
        {
           int nIndexMax = ::GetMenuItemCount(hParentMenu);
           for (int nIndex = 0; nIndex < nIndexMax; nIndex++)
           {
            if (::GetSubMenu(hParentMenu, nIndex) == pPopupMenu->m_hMenu)
            {
                // When popup is found, m_pParentMenu is containing menu.
                state.m_pParentMenu = CMenu::FromHandle(hParentMenu);
                break;
            }
           }
        }
    }

    state.m_nIndexMax = pPopupMenu->GetMenuItemCount();
    for (state.m_nIndex = 0; state.m_nIndex < state.m_nIndexMax;
      state.m_nIndex++)
    {
        state.m_nID = pPopupMenu->GetMenuItemID(state.m_nIndex);
        if (state.m_nID == 0)
           continue; // Menu separator or invalid cmd - ignore it.

        ASSERT(state.m_pOther == NULL);
        ASSERT(state.m_pMenu != NULL);
        if (state.m_nID == (UINT)-1)
        {
           // Possibly a popup menu, route to first item of that popup.
           state.m_pSubMenu = pPopupMenu->GetSubMenu(state.m_nIndex);
           if (state.m_pSubMenu == NULL ||
            (state.m_nID = state.m_pSubMenu->GetMenuItemID(0)) == 0 ||
            state.m_nID == (UINT)-1)
           {
            continue;       // First item of popup can't be routed to.
           }
           state.DoUpdate(this, TRUE);   // Popups are never auto disabled.
        }
        else
        {
           // Normal menu item.
           // Auto enable/disable if frame window has m_bAutoMenuEnable
           // set and command is _not_ a system command.
           state.m_pSubMenu = NULL;
           state.DoUpdate(this, FALSE);
        }

        // Adjust for menu deletions and additions.
        UINT nCount = pPopupMenu->GetMenuItemCount();
        if (nCount < state.m_nIndexMax)
        {
           state.m_nIndex -= (state.m_nIndexMax - nCount);
           while (state.m_nIndex < nCount &&
            pPopupMenu->GetMenuItemID(state.m_nIndex) == state.m_nID)
           {
            state.m_nIndex++;
           }
        }
        state.m_nIndexMax = nCount;
    }
}

// CCmdUIPropertyPage

IMPLEMENT_DYNAMIC(CCmdUIPropertyPage, CPropertyPage)
CCmdUIPropertyPage::CCmdUIPropertyPage(UINT nIDTemplate, UINT nIDCaption)
        : CPropertyPage(nIDTemplate, nIDCaption)
{
}

CCmdUIPropertyPage::~CCmdUIPropertyPage()
{
}

LRESULT CCmdUIPropertyPage::DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
        if(message == WM_COMMAND)
        {
                switch(HIWORD(wParam))
                {
                        case BN_CLICKED: case CBN_SELCHANGE: case EN_CHANGE:
                                SetModified();
                        default:;
                }
        }

        LRESULT ret = __super::DefWindowProc(message, wParam, lParam);

        if(message == WM_INITDIALOG)
        {
                SendMessage(WM_KICKIDLE);
        }

        return(ret);
}

BEGIN_MESSAGE_MAP(CCmdUIPropertyPage, CPropertyPage)
        ON_MESSAGE_VOID(WM_KICKIDLE, OnKickIdle)
END_MESSAGE_MAP()


// CCmdUIPropertyPage message handlers

void CCmdUIPropertyPage::OnKickIdle()
{
        UpdateDialogControls(this, false);

        // TODO: maybe we should send this call to modeless child cPropertyPages too
}