wxbitmapbuttonnobackground.cpp

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

/*
 *  Roadnav
 *  wxBitmapButtonNoBackground.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
///
/// Contains wxBitmapButtonNoBackground - a class similar to wxBitmapButton,
/// but one that does not draw any sort of background and is therefore
/// suitable for arbitrary shaped buttons.
///
//////////////////////////////////////////////////////////////////////////////

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

#ifdef _MSC_VER
#pragma warning(disable: 4786)
#endif

#include <wx/wx.h>

#include "wxBitmapButtonNoBackground.h"

BEGIN_EVENT_TABLE(wxBitmapButtonNoBackground, wxControl)
	EVT_ERASE_BACKGROUND(wxBitmapButtonNoBackground::OnEraseBackground)
	EVT_PAINT(wxBitmapButtonNoBackground::OnPaint)
	EVT_LEFT_UP(wxBitmapButtonNoBackground::OnLeftUp)
	EVT_LEFT_DOWN(wxBitmapButtonNoBackground::OnLeftDown)
	EVT_LEAVE_WINDOW(wxBitmapButtonNoBackground::OnMouseLeaveWindow)
END_EVENT_TABLE()

//////////////////////////////////////////////////////////////////////////////
///
/// \brief Constructor - takes same parameters as wxBitmapButton.
///
//////////////////////////////////////////////////////////////////////////////
wxBitmapButtonNoBackground::wxBitmapButtonNoBackground( wxWindow* parent, 
														wxWindowID id, 
														const wxBitmap& bitmap, 
														const wxPoint& pos, 
														const wxSize& size, 
														long style, 
														const wxValidator& validator, 
														const wxString& name)
{
	m_pParent = parent;
	m_iID = id;
	m_bmpDefault = bitmap;
	m_bmpSelected = bitmap;
	m_bSelected = false;
	m_bActive = false;
	
	Create(
				parent, 
				id, 
				pos, 
				size, 
#if wxCHECK_VERSION(2, 5, 0)
				wxNO_BORDER
#else
				0
#endif
				);
}

//////////////////////////////////////////////////////////////////////////////
///
/// \brief Change bitmap to use when button is depressed.
///
//////////////////////////////////////////////////////////////////////////////
void wxBitmapButtonNoBackground::SetBitmapSelected(const wxBitmap& bitmap)
{
	m_bmpSelected = bitmap;
}

//////////////////////////////////////////////////////////////////////////////
///
/// \brief Change bitmap to use when button is active.
///
//////////////////////////////////////////////////////////////////////////////
void wxBitmapButtonNoBackground::SetBitmapActive(const wxBitmap & bitmap)
{
	m_bmpActive = bitmap;
}

//////////////////////////////////////////////////////////////////////////////
///
/// \brief Handles erase background message - does nothing.
///
//////////////////////////////////////////////////////////////////////////////
void wxBitmapButtonNoBackground::OnEraseBackground(wxEraseEvent& event)
{
}

//////////////////////////////////////////////////////////////////////////////
///
/// \brief Paint button.
///
//////////////////////////////////////////////////////////////////////////////
void wxBitmapButtonNoBackground::OnPaint(wxPaintEvent& event)
{
	wxPaintDC dc(this);

	if (m_bSelected)
		dc.DrawBitmap(m_bmpSelected, 0, 0, true);
	else if (m_bActive)
		dc.DrawBitmap(m_bmpActive, 0, 0, true);
	else
		dc.DrawBitmap(m_bmpDefault, 0, 0, true);
}

//////////////////////////////////////////////////////////////////////////////
///
/// \brief Handles left mouse button being released. Trigger button if
/// mouse was depressed inside button.
///
//////////////////////////////////////////////////////////////////////////////
void wxBitmapButtonNoBackground::OnLeftUp(wxMouseEvent& event)
{
	if (m_bSelected)
	{
		wxCommandEvent ev(wxEVT_COMMAND_BUTTON_CLICKED, m_iID);
		
		m_bSelected = false;
		Refresh();

		m_pParent->AddPendingEvent(ev);
	}
}

//////////////////////////////////////////////////////////////////////////////
///
/// \brief Handles left mouse button being pressed.
///
//////////////////////////////////////////////////////////////////////////////
void wxBitmapButtonNoBackground::OnLeftDown(wxMouseEvent& event)
{
	m_bSelected = true;

	Refresh();
}

//////////////////////////////////////////////////////////////////////////////
///
/// \brief Mouse has left the button - deselect button.
///
//////////////////////////////////////////////////////////////////////////////
void wxBitmapButtonNoBackground::OnMouseLeaveWindow(wxMouseEvent& event)
{
	if (m_bSelected)
	{
		m_bSelected = false;
		Refresh();
	}
}

//////////////////////////////////////////////////////////////////////////////
///
/// \brief Update active state
///
//////////////////////////////////////////////////////////////////////////////
void wxBitmapButtonNoBackground::SetActive(bool bActive)
{
	if (m_bActive != bActive)
	{
		m_bActive = bActive;
		Refresh();
	}
}