rviz: rviz: loading_dialog.cpp Source File

00001 /*
00002  * Copyright (c) 2009, Willow Garage, Inc.
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions are met:
00007  *
00008  *     * Redistributions of source code must retain the above copyright
00009  *       notice, this list of conditions and the following disclaimer.
00010  *     * Redistributions in binary form must reproduce the above copyright
00011  *       notice, this list of conditions and the following disclaimer in the
00012  *       documentation and/or other materials provided with the distribution.
00013  *     * Neither the name of the Willow Garage, Inc. nor the names of its
00014  *       contributors may be used to endorse or promote products derived from
00015  *       this software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00018  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
00021  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00022  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00023  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00024  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00025  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00026  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00027  * POSSIBILITY OF SUCH DAMAGE.
00028  */
00029 
00030 #include "loading_dialog.h"
00031 
00032 #include <wx/dcclient.h>
00033 
00034 namespace rviz
00035 {
00036 
00037 LoadingDialog::LoadingDialog(wxWindow* parent)
00038 : wxDialog(0, wxID_ANY, wxT(""), wxDefaultPosition, wxSize(400, 32), 0)
00039 {
00040   Connect(wxEVT_PAINT, wxPaintEventHandler(LoadingDialog::onPaint), 0, this);
00041 
00042   wxSize size = GetSize();
00043   wxSize parent_size = parent->GetSize();
00044   wxPoint parent_pos = parent->GetPosition();
00045   SetPosition(wxPoint(parent_pos.x + parent_size.GetWidth()/2 - size.GetWidth()/2, parent_pos.y + parent_size.GetHeight()/2 - size.GetHeight()/2));
00046 }
00047 
00048 LoadingDialog::~LoadingDialog()
00049 {
00050 
00051 }
00052 
00053 void LoadingDialog::setState(const std::string& state)
00054 {
00055   state_ = state;
00056   Refresh();
00057 
00058   wxSafeYield(this, true);
00059 }
00060 
00061 void LoadingDialog::onPaint(wxPaintEvent& evt)
00062 {
00063   wxPaintDC dc(this);
00064 
00065   wxSize text_size = dc.GetTextExtent(wxString::FromAscii(state_.c_str()));
00066   wxSize size = GetSize();
00067 
00068   dc.SetBrush(*wxWHITE_BRUSH);
00069   dc.DrawRectangle(0, 0, size.GetWidth(), size.GetHeight());
00070   dc.DrawText(wxString::FromAscii(("Loading... " + state_).c_str()), 4, (size.GetHeight()/2) - (text_size.GetHeight()/2));
00071 }
00072 
00073 }