thumbwin.cpp

/******************************************************************************
 *
 * Project:  OpenCPN
 * Purpose:  Chart Thumbnail Object
 * Author:   David Register
 *
 ***************************************************************************
 *   Copyright (C) 2010 by David S. Register   *
 *                                                                         *
 *   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 of the License, 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 this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,  USA.             *
 ***************************************************************************
 *
 *
 */
 
#include <wx/wxprec.h>
 
#ifndef WX_PRECOMP
#include <wx/wx.h>
#endif  // precompiled headers
 
#include <stdlib.h>
#include <math.h>
#include <time.h>
 
#include "dychart.h"
 
#include "thumbwin.h"
#include "chartdb.h"
#include "model/wx28compat.h"
#include "color_handler.h"
 
ThumbWin *pthumbwin;
 
//------------------------------------------------------------------------------
//    Thumbwin Implementation
//------------------------------------------------------------------------------
BEGIN_EVENT_TABLE(ThumbWin, wxWindow)
EVT_PAINT(ThumbWin::OnPaint)
END_EVENT_TABLE()
 
// Define a constructor
 
ThumbWin::ThumbWin(wxWindow *parent)
    : wxWindow(parent, wxID_ANY, wxPoint(20, 20), wxSize(5, 5),
               wxSIMPLE_BORDER) {
  pThumbChart = NULL;
  m_max_size.x = m_max_size.y = 100;
  Show(false);
}
 
ThumbWin::~ThumbWin() {}
 
void ThumbWin::Resize(void) {
  if (pThumbChart) {
    if (pThumbChart->GetThumbData()->pDIBThumb) {
      int newheight = std::min(
          m_max_size.y, pThumbChart->GetThumbData()->pDIBThumb->GetHeight());
      int newwidth = std::min(
          m_max_size.x, pThumbChart->GetThumbData()->pDIBThumb->GetWidth());
      SetSize(0, 0, newwidth, newheight);
    }
  }
}
 
void ThumbWin::SetMaxSize(wxSize const &max_size) { m_max_size = max_size; }
 
void ThumbWin::OnPaint(wxPaintEvent &event) {
  wxPaintDC dc(this);
 
  if (pThumbChart) {
    if (pThumbChart->GetThumbData()) {
      if (pThumbChart->GetThumbData()->pDIBThumb)
        dc.DrawBitmap(*(pThumbChart->GetThumbData()->pDIBThumb), 0, 0, false);
 
      wxPen ppPen(GetGlobalColor("CHBLK"), 1, wxPENSTYLE_SOLID);
      dc.SetPen(ppPen);
      wxBrush yBrush(GetGlobalColor("CHYLW"), wxBRUSHSTYLE_SOLID);
      dc.SetBrush(yBrush);
      dc.DrawCircle(pThumbChart->GetThumbData()->ShipX,
                    pThumbChart->GetThumbData()->ShipY, 6);
    }
  }
}
 
const wxBitmap &ThumbWin::GetBitmap(void) {
  if (pThumbChart) {
    if (pThumbChart->GetThumbData()) {
      if (pThumbChart->GetThumbData()->pDIBThumb)
        m_bitmap = *(pThumbChart->GetThumbData()->pDIBThumb);
    }
  }
 
  return m_bitmap;
}