countydialog.cpp

Powerful and Portable GPS application -- support Linux, Windows, Windows CE GPS navigation and Map m

/*
 *  Roadnav
 *  CountyDialog.cpp
 *
 *  Copyright (c) 2004 - 2007 Richard L. Lynch <[e-mail]>
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of version 2 of the GNU General Public License
 *  as published by the Free Software Foundation.
 *
 *  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 this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

//////////////////////////////////////////////////////////////////////////////
/// \file
/// 
/// Dialog box allowing a user to select one or more counties.
///
//////////////////////////////////////////////////////////////////////////////

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif
#include <wx/wx.h>

#include "CountyDialog.h"
#include "libroadnav/MapCounty.h"

using namespace std;

//////////////////////////////////////////////////////////////////////////////
///
/// CountyDialog event table
///
//////////////////////////////////////////////////////////////////////////////

BEGIN_EVENT_TABLE(CountyDialog, wxDialog)
	EVT_BUTTON(wxID_OK, CountyDialog::OnOk)
END_EVENT_TABLE()

//////////////////////////////////////////////////////////////////////////////
///
/// \brief CountyDialog constructor - create controls and initialize them
///
//////////////////////////////////////////////////////////////////////////////

CountyDialog::CountyDialog(wxWindow *parent, wxFont * pFont, vector<wxString> vHighlight)
             : wxDialog(parent, -1, wxString(_T("Select Counties")), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
{
	vector<wxString>::iterator i;
	unsigned int iIndex;
	vector<wxString> vCounties;
	wxArrayString asCounties;

	// Use supplied font
	if (pFont)
		SetFont(*pFont);	
	
	// Get list of all county names
	vCounties = GetCountyNames();

    wxBoxSizer *sizerWnd = new wxBoxSizer(wxVERTICAL);

	m_ctlCounties = new wxListCtrl(this,
									-1,
									wxDefaultPosition,
									wxSize(500, 400),
									wxLC_LIST
									);

	// add each county name to asCounties
	for (i = vCounties.begin(); i != vCounties.end(); i++)
		asCounties.Add(*i);
	
	// sort county names
	asCounties.Sort();
	
	// put into control
	for (iIndex = 0; iIndex < asCounties.Count(); iIndex++)
	{
		wxString strThis;
		bool bHighlightThis;
		vector<wxString>::iterator iSearch;
		
		strThis = asCounties[iIndex];
		bHighlightThis = false;
		
		// check if it's supposed to be highlighted
		for (iSearch = vHighlight.begin(); iSearch != vHighlight.end() && !bHighlightThis; iSearch++)
			if (*iSearch == strThis)
				bHighlightThis = true;

		// add to list control
		m_ctlCounties->InsertItem(iIndex, strThis);
		
		// highlight if necessary
		if (bHighlightThis)
		{
			wxColour clrBackground;
			wxColour clrForeground;
			wxColour clrHighlight;
			
			clrForeground = m_ctlCounties->GetForegroundColour();
			clrBackground = m_ctlCounties->GetBackgroundColour();
			
			// calculate highlight color as halfway between foreground and background color
			clrHighlight.Set(	clrForeground.Red() / 2 + clrBackground.Red() / 2,
								clrForeground.Green() / 2 + clrBackground.Green() / 2,
								clrForeground.Blue() / 2 + clrBackground.Blue() / 2);
								
			m_ctlCounties->SetItemTextColour(iIndex, clrHighlight);
		}
	}

	sizerWnd->Add(m_ctlCounties, 1, wxGROW | wxALL, 5);

    wxBoxSizer *sizerBottom = new wxBoxSizer(wxHORIZONTAL);

    wxButton * btnOk = new wxButton(this, wxID_OK, _T("&OK"));
    sizerBottom->Add(btnOk, 0, wxALL, 5);

    wxButton * btnCancel = new wxButton(this, wxID_CANCEL, _T("&Cancel"));
    sizerBottom->Add(btnCancel, 0, wxALL, 5);

	sizerWnd->Add(sizerBottom, 0, wxALIGN_CENTER | wxALL, 5);

	SetAutoLayout(TRUE);
	SetSizer(sizerWnd);
	
	sizerWnd->SetSizeHints(this);
	sizerWnd->Fit(this);
	
	m_ctlCounties->SetFocus();
	btnOk->SetDefault();
	
	Center();
}


//////////////////////////////////////////////////////////////////////////////
///
/// \brief Ok clicked - save the selection to the vector m_strSelCounties
///
//////////////////////////////////////////////////////////////////////////////
void CountyDialog::OnOk(wxCommandEvent& event)
{
	long item = -1;
	
	m_strSelCounties.clear();

	item = m_ctlCounties->GetNextItem(item, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);

	while (item >= 0)
	{
		m_strSelCounties.push_back((wxString) m_ctlCounties->GetItemText(item));
		item = m_ctlCounties->GetNextItem(item, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
	}
	
	EndModal(wxID_OK);
}