675 lines
17 KiB
C++
675 lines
17 KiB
C++
/**
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* @file 3d_canvas.cpp
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*/
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#include <fctsys.h>
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#include <trigo.h>
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#include <wx/image.h>
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#if !wxUSE_GLCANVAS
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#error Please set wxUSE_GLCANVAS to 1 in setup.h.
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#endif
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#include <wx/dataobj.h>
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#include <wx/clipbrd.h>
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#include <wx/wupdlock.h>
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#include <gestfich.h>
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#include <3d_viewer.h>
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#include <3d_canvas.h>
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#include <info3d_visu.h>
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#include <trackball.h>
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#include <3d_viewer_id.h>
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// -----------------
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// helper function (from wxWidgets, opengl/cube.cpp sample
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// -----------------
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void CheckGLError()
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{
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GLenum errLast = GL_NO_ERROR;
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for ( ; ; )
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{
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GLenum err = glGetError();
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if ( err == GL_NO_ERROR )
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return;
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// normally the error is reset by the call to glGetError() but if
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// glGetError() itself returns an error, we risk looping forever here
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// so check that we get a different error than the last time
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if ( err == errLast )
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{
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wxLogError(wxT("OpenGL error state couldn't be reset."));
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return;
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}
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errLast = err;
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wxLogError(wxT("OpenGL error %d"), err);
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}
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}
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/*
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* EDA_3D_CANVAS implementation
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*/
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BEGIN_EVENT_TABLE( EDA_3D_CANVAS, wxGLCanvas )
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EVT_PAINT( EDA_3D_CANVAS::OnPaint )
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// key event:
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EVT_CHAR( EDA_3D_CANVAS::OnChar )
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// mouse events
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EVT_RIGHT_DOWN( EDA_3D_CANVAS::OnRightClick )
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EVT_MOUSEWHEEL( EDA_3D_CANVAS::OnMouseWheel )
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EVT_MOTION( EDA_3D_CANVAS::OnMouseMove )
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// other events
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EVT_ERASE_BACKGROUND( EDA_3D_CANVAS::OnEraseBackground )
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EVT_MENU_RANGE( ID_POPUP_3D_VIEW_START, ID_POPUP_3D_VIEW_END, EDA_3D_CANVAS::OnPopUpMenu )
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END_EVENT_TABLE()
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EDA_3D_CANVAS::EDA_3D_CANVAS( EDA_3D_FRAME* parent, int* attribList ) :
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wxGLCanvas( parent, wxID_ANY, attribList, wxDefaultPosition, wxDefaultSize,
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wxFULL_REPAINT_ON_RESIZE )
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{
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m_init = false;
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m_gllist = 0;
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// Explicitly create a new rendering context instance for this canvas.
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m_glRC = new wxGLContext( this );
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DisplayStatus();
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}
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EDA_3D_CANVAS::~EDA_3D_CANVAS()
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{
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ClearLists();
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m_init = false;
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delete m_glRC;
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}
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void EDA_3D_CANVAS::ClearLists()
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{
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if( m_gllist > 0 )
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glDeleteLists( m_gllist, 1 );
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m_gllist = 0;
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}
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void EDA_3D_CANVAS::OnChar( wxKeyEvent& event )
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{
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SetView3D( event.GetKeyCode() );
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event.Skip();
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}
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void EDA_3D_CANVAS::SetView3D( int keycode )
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{
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int ii;
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double delta_move = 0.7 * g_Parm_3D_Visu.m_Zoom;
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switch( keycode )
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{
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case WXK_LEFT:
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m_draw3dOffset.x -= delta_move;
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break;
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case WXK_RIGHT:
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m_draw3dOffset.x += delta_move;
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break;
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case WXK_UP:
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m_draw3dOffset.y += delta_move;
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break;
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case WXK_DOWN:
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m_draw3dOffset.y -= delta_move;
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break;
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case WXK_HOME:
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g_Parm_3D_Visu.m_Zoom = 1.0;
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m_draw3dOffset.x = m_draw3dOffset.y = 0;
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trackball( g_Parm_3D_Visu.m_Quat, 0.0, 0.0, 0.0, 0.0 );
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break;
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case WXK_END:
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break;
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case WXK_F1:
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g_Parm_3D_Visu.m_Zoom /= 1.4;
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if( g_Parm_3D_Visu.m_Zoom <= 0.01 )
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g_Parm_3D_Visu.m_Zoom = 0.01;
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break;
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case WXK_F2:
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g_Parm_3D_Visu.m_Zoom *= 1.4;
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break;
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case '+':
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break;
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case '-':
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break;
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case 'r':
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case 'R':
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m_draw3dOffset.x = m_draw3dOffset.y = 0;
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for( ii = 0; ii < 4; ii++ )
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g_Parm_3D_Visu.m_Rot[ii] = 0.0;
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trackball( g_Parm_3D_Visu.m_Quat, 0.0, 0.0, 0.0, 0.0 );
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break;
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case 'x':
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for( ii = 0; ii < 4; ii++ )
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g_Parm_3D_Visu.m_Rot[ii] = 0.0;
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trackball( g_Parm_3D_Visu.m_Quat, 0.0, 0.0, 0.0, 0.0 );
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g_Parm_3D_Visu.m_ROTZ = -90;
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g_Parm_3D_Visu.m_ROTX = -90;
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break;
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case 'X':
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for( ii = 0; ii < 4; ii++ )
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g_Parm_3D_Visu.m_Rot[ii] = 0.0;
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trackball( g_Parm_3D_Visu.m_Quat, 0.0, 0.0, 0.0, 0.0 );
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g_Parm_3D_Visu.m_ROTZ = 90;
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g_Parm_3D_Visu.m_ROTX = -90;
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break;
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case 'y':
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for( ii = 0; ii < 4; ii++ )
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g_Parm_3D_Visu.m_Rot[ii] = 0.0;
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trackball( g_Parm_3D_Visu.m_Quat, 0.0, 0.0, 0.0, 0.0 );
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g_Parm_3D_Visu.m_ROTX = -90;
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break;
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case 'Y':
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for( ii = 0; ii < 4; ii++ )
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g_Parm_3D_Visu.m_Rot[ii] = 0.0;
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trackball( g_Parm_3D_Visu.m_Quat, 0.0, 0.0, 0.0, 0.0 );
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g_Parm_3D_Visu.m_ROTX = -90;
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g_Parm_3D_Visu.m_ROTZ = -180;
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break;
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case 'z':
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for( ii = 0; ii < 4; ii++ )
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g_Parm_3D_Visu.m_Rot[ii] = 0.0;
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trackball( g_Parm_3D_Visu.m_Quat, 0.0, 0.0, 0.0, 0.0 );
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break;
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case 'Z':
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for( ii = 0; ii < 4; ii++ )
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g_Parm_3D_Visu.m_Rot[ii] = 0.0;
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trackball( g_Parm_3D_Visu.m_Quat, 0.0, 0.0, 0.0, 0.0 );
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g_Parm_3D_Visu.m_ROTX = -180;
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break;
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default:
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return;
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}
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DisplayStatus();
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Refresh( false );
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}
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void EDA_3D_CANVAS::OnMouseWheel( wxMouseEvent& event )
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{
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wxSize size( GetClientSize() );
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if( event.ShiftDown() )
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{
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if( event.GetWheelRotation() < 0 )
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{
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/* up */
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SetView3D( WXK_UP );
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}
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else
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{
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/* down */
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SetView3D( WXK_DOWN );
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}
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}
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else if( event.ControlDown() )
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{
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if( event.GetWheelRotation() > 0 )
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{
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/* right */
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SetView3D( WXK_RIGHT );
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}
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else
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{
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/* left */
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SetView3D( WXK_LEFT );
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}
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}
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else
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{
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if( event.GetWheelRotation() > 0 )
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{
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g_Parm_3D_Visu.m_Zoom /= 1.4;
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if( g_Parm_3D_Visu.m_Zoom <= 0.01 )
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g_Parm_3D_Visu.m_Zoom = 0.01;
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}
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else
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g_Parm_3D_Visu.m_Zoom *= 1.4;
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DisplayStatus();
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Refresh( false );
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}
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g_Parm_3D_Visu.m_Beginx = event.GetX();
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g_Parm_3D_Visu.m_Beginy = event.GetY();
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}
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void EDA_3D_CANVAS::OnMouseMove( wxMouseEvent& event )
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{
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wxSize size( GetClientSize() );
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double spin_quat[4];
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if( event.Dragging() )
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{
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if( event.LeftIsDown() )
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{
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/* drag in progress, simulate trackball */
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trackball( spin_quat,
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(2.0 * g_Parm_3D_Visu.m_Beginx - size.x) / size.x,
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(size.y - 2.0 * g_Parm_3D_Visu.m_Beginy) / size.y,
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( 2.0 * event.GetX() - size.x) / size.x,
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( size.y - 2.0 * event.GetY() ) / size.y );
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add_quats( spin_quat, g_Parm_3D_Visu.m_Quat, g_Parm_3D_Visu.m_Quat );
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}
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else if( event.MiddleIsDown() )
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{
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/* middle button drag -> pan */
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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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const double PAN_FACTOR = 8.0 * g_Parm_3D_Visu.m_Zoom;
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m_draw3dOffset.x -= PAN_FACTOR *
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( g_Parm_3D_Visu.m_Beginx - event.GetX() ) / size.x;
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m_draw3dOffset.y -= PAN_FACTOR *
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(event.GetY() - g_Parm_3D_Visu.m_Beginy) / size.y;
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}
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/* orientation has changed, redraw mesh */
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DisplayStatus();
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Refresh( false );
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}
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g_Parm_3D_Visu.m_Beginx = event.GetX();
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g_Parm_3D_Visu.m_Beginy = event.GetY();
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}
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/* Construct and display a popup menu when the right button is clicked.
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*/
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void EDA_3D_CANVAS::OnRightClick( wxMouseEvent& event )
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{
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wxPoint pos;
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wxMenu PopUpMenu;
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pos.x = event.GetX();
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pos.y = event.GetY();
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wxMenuItem* item = new wxMenuItem( &PopUpMenu, ID_POPUP_ZOOMIN, _( "Zoom +" ) );
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item->SetBitmap( KiBitmap( zoom_in_xpm ));
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PopUpMenu.Append( item );
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item = new wxMenuItem( &PopUpMenu, ID_POPUP_ZOOMOUT, _( "Zoom -" ) );
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item->SetBitmap( KiBitmap( zoom_out_xpm ));
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PopUpMenu.Append( item );
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PopUpMenu.AppendSeparator();
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item = new wxMenuItem( &PopUpMenu, ID_POPUP_VIEW_ZPOS, _( "Top View" ) );
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item->SetBitmap( KiBitmap( axis3d_top_xpm ));
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PopUpMenu.Append( item );
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item = new wxMenuItem( &PopUpMenu, ID_POPUP_VIEW_ZNEG, _( "Bottom View" ) );
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item->SetBitmap( KiBitmap( axis3d_bottom_xpm ));
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PopUpMenu.Append( item );
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PopUpMenu.AppendSeparator();
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item = new wxMenuItem( &PopUpMenu, ID_POPUP_VIEW_XPOS, _( "Right View" ) );
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item->SetBitmap( KiBitmap( axis3d_right_xpm ));
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PopUpMenu.Append( item );
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item = new wxMenuItem( &PopUpMenu, ID_POPUP_VIEW_XNEG, _( "Left View" ) );
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item->SetBitmap( KiBitmap( axis3d_left_xpm ));
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PopUpMenu.Append( item );
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PopUpMenu.AppendSeparator();
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item = new wxMenuItem( &PopUpMenu, ID_POPUP_VIEW_YPOS, _( "Front View" ) );
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item->SetBitmap( KiBitmap( axis3d_front_xpm ));
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PopUpMenu.Append( item );
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item = new wxMenuItem( &PopUpMenu, ID_POPUP_VIEW_YNEG, _( "Back View" ) );
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item->SetBitmap( KiBitmap( axis3d_back_xpm ));
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PopUpMenu.Append( item );
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PopUpMenu.AppendSeparator();
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item = new wxMenuItem( &PopUpMenu, ID_POPUP_MOVE3D_LEFT, _( "Move left <-" ) );
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item->SetBitmap( KiBitmap( left_xpm ));
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PopUpMenu.Append( item );
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item = new wxMenuItem( &PopUpMenu, ID_POPUP_MOVE3D_RIGHT, _( "Move right ->" ) );
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item->SetBitmap( KiBitmap( right_xpm ));
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PopUpMenu.Append( item );
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item = new wxMenuItem( &PopUpMenu, ID_POPUP_MOVE3D_UP, _( "Move Up ^" ) );
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item->SetBitmap( KiBitmap( up_xpm ));
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PopUpMenu.Append( item );
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item = new wxMenuItem( &PopUpMenu, ID_POPUP_MOVE3D_DOWN, _( "Move Down" ) );
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item->SetBitmap( KiBitmap( down_xpm ));
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PopUpMenu.Append( item );
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PopupMenu( &PopUpMenu, pos );
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}
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void EDA_3D_CANVAS::OnPopUpMenu( wxCommandEvent& event )
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{
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int key = 0;
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switch( event.GetId() )
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{
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case ID_POPUP_ZOOMIN:
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key = WXK_F1;
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break;
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case ID_POPUP_ZOOMOUT:
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key = WXK_F2;
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break;
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case ID_POPUP_VIEW_XPOS:
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key = 'x';
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break;
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case ID_POPUP_VIEW_XNEG:
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key = 'X';
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break;
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case ID_POPUP_VIEW_YPOS:
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key = 'y';
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break;
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case ID_POPUP_VIEW_YNEG:
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key = 'Y';
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break;
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case ID_POPUP_VIEW_ZPOS:
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key = 'z';
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break;
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case ID_POPUP_VIEW_ZNEG:
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key = 'Z';
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break;
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case ID_POPUP_MOVE3D_LEFT:
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key = WXK_LEFT;
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break;
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case ID_POPUP_MOVE3D_RIGHT:
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key = WXK_RIGHT;
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break;
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case ID_POPUP_MOVE3D_UP:
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key = WXK_UP;
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break;
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case ID_POPUP_MOVE3D_DOWN:
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key = WXK_DOWN;
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break;
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default:
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return;
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}
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SetView3D( key );
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}
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void EDA_3D_CANVAS::DisplayStatus()
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{
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wxString msg;
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msg.Printf( wxT( "dx %3.2f" ), m_draw3dOffset.x );
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Parent()->SetStatusText( msg, 1 );
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msg.Printf( wxT( "dy %3.2f" ), m_draw3dOffset.y );
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Parent()->SetStatusText( msg, 2 );
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msg.Printf( wxT( "View: %3.1f" ), 45 * g_Parm_3D_Visu.m_Zoom );
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Parent()->SetStatusText( msg, 3 );
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}
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void EDA_3D_CANVAS::OnPaint( wxPaintEvent& event )
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{
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wxPaintDC dc( this );
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Redraw();
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event.Skip();
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}
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void EDA_3D_CANVAS::OnEraseBackground( wxEraseEvent& event )
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{
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// Do nothing, to avoid flashing.
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}
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/* Initialize broad parameters for OpenGL */
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void EDA_3D_CANVAS::InitGL()
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{
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wxSize size = GetClientSize();
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if( !m_init )
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{
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m_init = true;
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g_Parm_3D_Visu.m_Zoom = 1.0;
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m_ZBottom = 1.0;
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m_ZTop = 10.0;
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glDisable( GL_CULL_FACE ); // show back faces
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glEnable( GL_DEPTH_TEST ); // Enable z-buferring
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glEnable( GL_ALPHA_TEST );
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glEnable( GL_LINE_SMOOTH );
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// glEnable(GL_POLYGON_SMOOTH); // creates issues with some graphic cards
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glShadeModel( GL_SMOOTH );
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glEnable( GL_COLOR_MATERIAL );
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glColorMaterial( GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE );
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// speedups
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glEnable( GL_DITHER );
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glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_DONT_CARE );
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glHint( GL_LINE_SMOOTH_HINT, GL_NICEST );
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glHint( GL_POLYGON_SMOOTH_HINT, GL_NICEST );
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// Initialize alpha blending function.
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glEnable( GL_BLEND );
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glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
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}
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// set viewing projection
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glMatrixMode( GL_PROJECTION );
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glLoadIdentity();
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#define MAX_VIEW_ANGLE 160.0 / 45.0
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if( g_Parm_3D_Visu.m_Zoom > MAX_VIEW_ANGLE )
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g_Parm_3D_Visu.m_Zoom = MAX_VIEW_ANGLE;
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|
if( Parent()->ModeIsOrtho() )
|
|
{
|
|
// OrthoReductionFactor is chosen so as to provide roughly the same size as
|
|
// Perspective View
|
|
const double orthoReductionFactor = 400 / g_Parm_3D_Visu.m_Zoom;
|
|
|
|
// Initialize Projection Matrix for Ortographic View
|
|
glOrtho( -size.x / orthoReductionFactor, size.x / orthoReductionFactor,
|
|
-size.y / orthoReductionFactor, size.y / orthoReductionFactor, 1, 10 );
|
|
}
|
|
else
|
|
{
|
|
// Ratio width / height of the window display
|
|
double ratio_HV = (double) size.x / size.y;
|
|
|
|
// Initialize Projection Matrix for Perspective View
|
|
gluPerspective( 45.0 * g_Parm_3D_Visu.m_Zoom, ratio_HV, 1, 10 );
|
|
}
|
|
|
|
|
|
// position viewer
|
|
glMatrixMode( GL_MODELVIEW );
|
|
glLoadIdentity();
|
|
glTranslatef( 0.0F, 0.0F, -( m_ZBottom + m_ZTop) / 2 );
|
|
|
|
// clear color and depth buffers
|
|
glClearColor( g_Parm_3D_Visu.m_BgColor.m_Red,
|
|
g_Parm_3D_Visu.m_BgColor.m_Green,
|
|
g_Parm_3D_Visu.m_BgColor.m_Blue, 1 );
|
|
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
|
|
|
|
// Setup light sources:
|
|
SetLights();
|
|
|
|
CheckGLError();
|
|
}
|
|
|
|
|
|
/* Initialize OpenGL light sources. */
|
|
void EDA_3D_CANVAS::SetLights()
|
|
{
|
|
double light;
|
|
GLfloat light_color[4];
|
|
|
|
/* set viewing projection */
|
|
light_color[3] = 1.0;
|
|
GLfloat Z_axis_pos[4] = { 0.0, 0.0, 3.0, 0.0 };
|
|
GLfloat lowZ_axis_pos[4] = { 0.0, 0.0, -3.0, 0.5 };
|
|
|
|
/* activate light */
|
|
light = 1.0;
|
|
light_color[0] = light_color[1] = light_color[2] = light;
|
|
glLightfv( GL_LIGHT0, GL_POSITION, Z_axis_pos );
|
|
glLightfv( GL_LIGHT0, GL_DIFFUSE, light_color );
|
|
light = 0.3;
|
|
light_color[0] = light_color[1] = light_color[2] = light;
|
|
glLightfv( GL_LIGHT1, GL_POSITION, lowZ_axis_pos );
|
|
glLightfv( GL_LIGHT1, GL_DIFFUSE, light_color );
|
|
glEnable( GL_LIGHT0 ); // White spot on Z axis
|
|
glEnable( GL_LIGHT1 ); // White spot on Z axis ( bottom)
|
|
glEnable( GL_LIGHTING );
|
|
}
|
|
|
|
|
|
/* Create a Screenshot of the current 3D view.
|
|
* Output file format is png or jpeg, or image is copied to the clipboard
|
|
*/
|
|
void EDA_3D_CANVAS::TakeScreenshot( wxCommandEvent& event )
|
|
{
|
|
wxFileName fn( Parent()->GetDefaultFileName() );
|
|
wxString FullFileName;
|
|
wxString file_ext, mask;
|
|
bool fmt_is_jpeg = false;
|
|
|
|
if( event.GetId() == ID_MENU_SCREENCOPY_JPEG )
|
|
fmt_is_jpeg = true;
|
|
|
|
if( event.GetId() != ID_TOOL_SCREENCOPY_TOCLIBBOARD )
|
|
{
|
|
file_ext = fmt_is_jpeg ? wxT( "jpg" ) : wxT( "png" );
|
|
mask = wxT( "*." ) + file_ext;
|
|
FullFileName = Parent()->GetDefaultFileName();
|
|
fn.SetExt( file_ext );
|
|
|
|
FullFileName = EDA_FileSelector( _( "3D Image filename:" ), wxEmptyString,
|
|
fn.GetFullName(), file_ext, mask, this,
|
|
wxFD_SAVE, true );
|
|
|
|
if( FullFileName.IsEmpty() )
|
|
return;
|
|
|
|
// Be sure the screen area destroyed by the file dialog is redrawn before making
|
|
// a screen copy.
|
|
// Without this call, under Linux the screen refresh is made to late.
|
|
wxYield();
|
|
}
|
|
|
|
struct vieport_params
|
|
{
|
|
GLint originx;
|
|
GLint originy;
|
|
GLint x;
|
|
GLint y;
|
|
} viewport;
|
|
|
|
// Build image from the 3D buffer
|
|
wxWindowUpdateLocker noUpdates( this );
|
|
glGetIntegerv( GL_VIEWPORT, (GLint*) &viewport );
|
|
|
|
unsigned char* pixelbuffer = (unsigned char*) malloc( viewport.x * viewport.y * 3 );
|
|
unsigned char* alphabuffer = (unsigned char*) malloc( viewport.x * viewport.y );
|
|
wxImage image( viewport.x, viewport.y );
|
|
|
|
glPixelStorei( GL_PACK_ALIGNMENT, 1 );
|
|
glReadBuffer( GL_BACK_LEFT );
|
|
glReadPixels( viewport.originx, viewport.originy,
|
|
viewport.x, viewport.y,
|
|
GL_RGB, GL_UNSIGNED_BYTE, pixelbuffer );
|
|
glReadPixels( viewport.originx, viewport.originy,
|
|
viewport.x, viewport.y,
|
|
GL_ALPHA, GL_UNSIGNED_BYTE, alphabuffer );
|
|
|
|
|
|
image.SetData( pixelbuffer );
|
|
image.SetAlpha( alphabuffer );
|
|
image = image.Mirror( false );
|
|
wxBitmap bitmap( image );
|
|
|
|
if( event.GetId() == ID_TOOL_SCREENCOPY_TOCLIBBOARD )
|
|
{
|
|
wxBitmapDataObject* dobjBmp = new wxBitmapDataObject;
|
|
dobjBmp->SetBitmap( bitmap );
|
|
|
|
if( wxTheClipboard->Open() )
|
|
{
|
|
if( !wxTheClipboard->SetData( dobjBmp ) )
|
|
wxMessageBox( _( "Failed to copy image to clipboard" ) );
|
|
|
|
wxTheClipboard->Flush(); /* the data in clipboard will stay
|
|
* available after the
|
|
* application exits */
|
|
wxTheClipboard->Close();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
wxImage image = bitmap.ConvertToImage();
|
|
|
|
if( !image.SaveFile( FullFileName,
|
|
fmt_is_jpeg ? wxBITMAP_TYPE_JPEG : wxBITMAP_TYPE_PNG ) )
|
|
wxMessageBox( _( "Can't save file" ) );
|
|
|
|
image.Destroy();
|
|
}
|
|
}
|