use wxIsNullDouble instead of comparing m_ration with 0

[wxWidgets.git] / contrib / src / fl / cbcustom.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        cbcustom.cpp
// Purpose:     cbSimpleCustomizationPlugin class declaration
// Author:      Aleksandras Gluchovas
// Modified by:
// Created:     06/09/98
// RCS-ID:      $Id$
// Copyright:   (c) Aleksandras Gluchovas
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
#pragma hdrstop
#endif

#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif

#include "wx/fl/cbcustom.h"

// helper class to receive menu customization event

class cbContextMenuHandler : public wxEvtHandler
{
public:
    cbSimpleCustomizationPlugin* mpBackRef;

public:
    void OnMenuCommand( wxCommandEvent& evt );

    void OnCommandEvents( wxCommandEvent& evt );

    DECLARE_EVENT_TABLE()
};

// FIXME:: is this "safe" ?

#define CB_CUSTOMIZE_MENU_FIRST_ITEM_ID 17500

/***** Implementation for helper class cbContextMenuHandler *****/

BEGIN_EVENT_TABLE( cbContextMenuHandler, wxEvtHandler )

    // FIXME:: what is the right range for these ids ? so that they 
    //         would not collide with user commands?

    EVT_COMMAND_RANGE( CB_CUSTOMIZE_MENU_FIRST_ITEM_ID,
                       CB_CUSTOMIZE_MENU_FIRST_ITEM_ID + 300, 
                       wxEVT_COMMAND_MENU_SELECTED,  
                       cbContextMenuHandler::OnCommandEvents )

END_EVENT_TABLE()

void cbContextMenuHandler::OnCommandEvents( wxCommandEvent& evt )
{
    //wxMessageBox("Wowwwww, Yeah!");

    mpBackRef->OnMenuItemSelected( evt );
}

/***** Implementation for class cbSimpleCustomizationPlugin *****/

IMPLEMENT_DYNAMIC_CLASS( cbSimpleCustomizationPlugin, cbPluginBase )

BEGIN_EVENT_TABLE( cbSimpleCustomizationPlugin, cbPluginBase )

    EVT_PL_CUSTOMIZE_BAR   ( cbSimpleCustomizationPlugin::OnCustomizeBar    )
    EVT_PL_CUSTOMIZE_LAYOUT( cbSimpleCustomizationPlugin::OnCustomizeLayout )

END_EVENT_TABLE()

cbSimpleCustomizationPlugin::cbSimpleCustomizationPlugin(void)
{}

cbSimpleCustomizationPlugin::cbSimpleCustomizationPlugin( wxFrameLayout* pPanel, int paneMask )

    : cbPluginBase( pPanel, paneMask )
{}

void cbSimpleCustomizationPlugin::OnCustomizeBar( cbCustomizeBarEvent& event )
{
    // ingnore bar customization, treat it
    // as layout-customization...ugly, eh?

    cbCustomizeLayoutEvent clEvt( event.mClickPos );

    OnCustomizeLayout( clEvt );
}

void cbSimpleCustomizationPlugin::OnCustomizeLayout( cbCustomizeLayoutEvent& event )
{
    wxString helpStr1 = wxT("Select this item to show the corresponding control bar");
    wxString helpStr2 = wxT("Select this itme to hide the corresponding control bar");

    int id = CB_CUSTOMIZE_MENU_FIRST_ITEM_ID;

    wxMenu* pMenu = new wxMenu();

    BarArrayT& bars = mpLayout->GetBars();

    for( size_t i = 0; i != bars.GetCount(); ++i )
    {
        cbBarInfo& bar = *bars[i];

        bool isHidden = ( bar.mState == wxCBAR_HIDDEN );

        wxString* pHelpStr = ( isHidden ) ? &helpStr1 : &helpStr2;

        pMenu->Append( id, bar.mName, *pHelpStr, true );

        pMenu->Check( id, (isHidden == false) );

        ++id;
    }

    // Customization dialog not implemented, so don't show the menu item
#if 0
    pMenu->AppendSeparator();
    pMenu->Append( id, "Customize...", "Show layout customization dialog", false );
#endif    
    mCustMenuItemId = id;

    cbContextMenuHandler* pHandler = new cbContextMenuHandler();
    pHandler->mpBackRef            = this;

    wxWindow* pFrm = &mpLayout->GetParentFrame();

    // FOR NOW FOR NOW:: to work-around wxFrame's (MSW) nasty event-handling bugs!!!

    wxWindow* pTmpWnd = new wxWindow( pFrm, wxID_ANY, event.mClickPos, wxSize(0,0) );

    pMenu->SetEventHandler( pHandler );

    pTmpWnd->PopupMenu( pMenu, 0,0 );

    pTmpWnd->Destroy();

    delete pMenu;
    delete pHandler;

    // event is "eaten" by this plugin
}

void cbSimpleCustomizationPlugin::OnMenuItemSelected( wxCommandEvent& event )
{
    if ( event.GetId() == mCustMenuItemId )
    {
        wxMessageBox(wxT("Customization dialog box is not supported by this plugin yet"));

        return;
    }
    else
    {
        cbBarInfo* pBar = mpLayout->GetBars()[ event.GetId() -  CB_CUSTOMIZE_MENU_FIRST_ITEM_ID ];

        wxASSERT( pBar ); // DBG::

        // "inverse" bar-visibility of the selected bar

        int newState;

        if ( pBar->mState == wxCBAR_HIDDEN )
        {
            if ( pBar->mAlignment == -1 )
            {
                pBar->mAlignment = 0;       // just remove "-1" marking
                newState = wxCBAR_FLOATING;
            }
            else
                if ( pBar->mAlignment == FL_ALIGN_TOP ||
                     pBar->mAlignment == FL_ALIGN_BOTTOM )

                    newState = wxCBAR_DOCKED_HORIZONTALLY;
                else
                    newState = wxCBAR_DOCKED_VERTICALLY;
        }
        else
        {
            newState = wxCBAR_HIDDEN;

            if ( pBar->mState == wxCBAR_FLOATING )

                pBar->mAlignment = -1;
        }

        mpLayout->SetBarState( pBar, newState, true );

        if ( newState == wxCBAR_FLOATING )
            mpLayout->RepositionFloatedBar( pBar ); 
    }

    // menu-item-selected event is "eaten"
}