118 lines
3.4 KiB
C++
118 lines
3.4 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2015 Mario Luzeiro <mrluzeiro@ua.pt>
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* Copyright (C) 1992-2015 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/**
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* @file ctrack_ball.cpp
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* @brief
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*/
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#include "common_ogl/openGL_includes.h"
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#include "ctrack_ball.h"
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#include "trackball.h"
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#include <wx/log.h>
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CTRACK_BALL::CTRACK_BALL( float aRangeScale ) : CCAMERA( aRangeScale )
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{
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wxLogTrace( m_logTrace, wxT( "CTRACK_BALL::CTRACK_BALL" ) );
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memset( m_quat, 0, sizeof( m_quat ) );
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trackball( m_quat, 0.0, 0.0, 0.0, 0.0 );
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}
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void CTRACK_BALL::Drag( const wxPoint &aNewMousePosition )
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{
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m_parametersChanged = true;
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double spin_quat[4];
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// "Pass the x and y coordinates of the last and current positions of
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// the mouse, scaled so they are from (-1.0 ... 1.0)."
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float zoom = std::min( m_zoom, 1.0f );
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trackball( spin_quat,
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zoom * (2.0 * m_lastPosition.x - m_windowSize.x) / m_windowSize.x,
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zoom * (m_windowSize.y - 2.0 * m_lastPosition.y) / m_windowSize.y,
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zoom * (2.0 * aNewMousePosition.x - m_windowSize.x) / m_windowSize.x,
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zoom * ( m_windowSize.y - 2.0 * aNewMousePosition.y ) / m_windowSize.y);
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add_quats( spin_quat, m_quat, m_quat );
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GLfloat rotationMatrix[4][4];
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build_rotmatrix( rotationMatrix, m_quat );
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m_rotationMatrix = glm::make_mat4( &rotationMatrix[0][0] );
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updateViewMatrix();
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updateFrustum();
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}
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void CTRACK_BALL::SetBoardLookAtPos( const SFVEC3F &aBoardPos )
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{
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if( m_boardLookAt_pos != aBoardPos )
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{
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m_boardLookAt_pos = -aBoardPos;
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updateViewMatrix();
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updateFrustum();
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m_parametersChanged = true;
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}
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}
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void CTRACK_BALL::Pan( const wxPoint &aNewMousePosition )
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{
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m_parametersChanged = true;
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// Current zoom and an additional factor are taken into account
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// for the amount of panning.
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float zoom = std::min( m_zoom, 1.0f );
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float panFactor = m_range_scale * zoom * (zoom * 4.0f);
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m_camera_pos.x -= panFactor * ( m_lastPosition.x - aNewMousePosition.x ) / m_windowSize.x;
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m_camera_pos.y -= panFactor * (aNewMousePosition.y - m_lastPosition.y ) / m_windowSize.y;
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updateViewMatrix();
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updateFrustum();
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}
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void CTRACK_BALL::Pan( const SFVEC3F &aDeltaOffsetInc )
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{
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m_parametersChanged = true;
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m_camera_pos += aDeltaOffsetInc;
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updateViewMatrix();
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updateFrustum();
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}
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void CTRACK_BALL::Reset()
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{
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m_parametersChanged = true;
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}
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