+++ /dev/null
-/////////////////////////////////////////////////////////////////////////////
-// Name: penguin.cpp
-// Purpose: wxGLCanvas demo program
-// Author: Robert Roebling
-// Modified by:
-// Created: 04/01/98
-// RCS-ID: $Id$
-// Copyright: (c) Robert Roebling
-// Licence: wxWindows licence
-/////////////////////////////////////////////////////////////////////////////
-
-#ifdef __GNUG__
-#pragma implementation
-#pragma interface
-#endif
-
-// For compilers that support precompilation, includes "wx.h".
-#include "wx/wxprec.h"
-
-#ifdef __BORLANDC__
-#pragma hdrstop
-#endif
-
-#ifndef WX_PRECOMP
-#include "wx/wx.h"
-#endif
-
-#include "penguin.h"
-#include <GL/glu.h>
-
-#define VIEW_ASPECT 1.3
-
-/* `Main program' equivalent, creating windows and returning main app frame */
-bool MyApp::OnInit(void)
-{
-
- /* Create the main frame window */
- MyFrame *frame = new MyFrame(NULL, "wxWindows OpenGL Demo", wxPoint(50, 50), wxSize(400, 300));
-
- /* Make a menubar */
- wxMenu *fileMenu = new wxMenu;
-
- fileMenu->Append(wxID_EXIT, "E&xit");
- wxMenuBar *menuBar = new wxMenuBar;
- menuBar->Append(fileMenu, "&File");
- frame->SetMenuBar(menuBar);
-
- frame->m_canvas = new TestGLCanvas(frame, -1, wxPoint(0, 0), wxSize(200, 200));
-
- /* Load file wiht mesh data */
- frame->m_canvas->LoadLWO( "penguin.lwo" );
-
- /* Show the frame */
- frame->Show(TRUE);
-
- return TRUE;
-}
-
-IMPLEMENT_APP(MyApp)
-
-BEGIN_EVENT_TABLE(MyFrame, wxFrame)
- EVT_MENU(wxID_EXIT, MyFrame::OnExit)
-END_EVENT_TABLE()
-
-/* My frame constructor */
-MyFrame::MyFrame(wxFrame *frame, const wxString& title, const wxPoint& pos,
- const wxSize& size, long style):
- wxFrame(frame, -1, title, pos, size, style)
-{
- m_canvas = NULL;
-}
-
-/* Intercept menu commands */
-void MyFrame::OnExit(wxCommandEvent& event)
-{
- Destroy();
-}
-
-BEGIN_EVENT_TABLE(TestGLCanvas, wxGLCanvas)
- EVT_SIZE(TestGLCanvas::OnSize)
- EVT_PAINT(TestGLCanvas::OnPaint)
- EVT_ERASE_BACKGROUND(TestGLCanvas::OnEraseBackground)
- EVT_MOUSE_EVENTS(TestGLCanvas::OnMouse)
-END_EVENT_TABLE()
-
-TestGLCanvas::TestGLCanvas(wxWindow *parent, wxWindowID id,
- const wxPoint& pos, const wxSize& size, long style, const wxString& name):
- wxGLCanvas(parent, id, pos, size, style, name)
-{
- block = FALSE;
-}
-
-TestGLCanvas::~TestGLCanvas(void)
-{
- /* destroy mesh */
- lw_object_free(info.lwobject);
-}
-
-void TestGLCanvas::OnPaint( wxPaintEvent& event )
-{
- /* must always be here */
- wxPaintDC dc(this);
-
-#ifndef __WXMOTIF__
- if (!GetContext()) return;
-#endif
-
- SetCurrent();
-
- /* initialize OpenGL */
- if (info.do_init == TRUE)
- {
- InitGL();
- info.do_init = FALSE;
- }
-
- /* view */
- glMatrixMode( GL_PROJECTION );
- glLoadIdentity();
- gluPerspective( info.zoom, VIEW_ASPECT, 1, 100 );
- glMatrixMode( GL_MODELVIEW );
-
- /* clear */
- glClearColor( .3, .4, .6, 1 );
- glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-
- /* transformations */
- GLfloat m[4][4];
- glLoadIdentity();
- glTranslatef( 0, 0, -30 );
- build_rotmatrix( m,info.quat );
- glMultMatrixf( &m[0][0] );
-
- /* draw object */
- lw_object_show( info.lwobject );
-
- /* flush */
- glFlush();
-
- /* swap */
- SwapBuffers();
-}
-
-void TestGLCanvas::OnSize(wxSizeEvent& event)
-{
- int width, height;
- GetClientSize(& width, & height);
-
-#ifndef __WXMOTIF__
- if (GetContext())
-#endif
- {
- SetCurrent();
- glViewport(0, 0, width, height);
- }
-}
-
-void TestGLCanvas::OnEraseBackground(wxEraseEvent& event)
-{
- /* Do nothing, to avoid flashing on MSW */
-}
-
-void TestGLCanvas::LoadLWO(const wxString &filename)
-{
- /* test if lightwave object */
- if (!lw_is_lwobject(filename)) return;
-
- /* read lightwave object */
- lwObject *lwobject = lw_object_read(filename);
-
- /* scale */
- lw_object_scale(lwobject, 10.0 / lw_object_radius(lwobject));
-
- /* set up mesh info */
- info.do_init = TRUE;
- info.lwobject = lwobject;
- info.beginx = 0;
- info.beginy = 0;
- info.zoom = 45;
- trackball( info.quat, 0.0, 0.0, 0.0, 0.0 );
-}
-
-void TestGLCanvas::OnMouse( wxMouseEvent& event )
-{
- wxSize sz(GetClientSize());
- if (event.Dragging())
- {
- /* drag in progress, simulate trackball */
- float spin_quat[4];
- trackball(spin_quat,
- (2.0*info.beginx - sz.x) / sz.x,
- ( sz.y - 2.0*info.beginy) / sz.y,
- ( 2.0*event.GetX() - sz.x) / sz.x,
- ( sz.y - 2.0*event.GetY()) / sz.y);
-
- add_quats( spin_quat, info.quat, info.quat );
-
- /* orientation has changed, redraw mesh */
- Refresh(FALSE);
- }
-
- info.beginx = event.GetX();
- info.beginy = event.GetY();
-}
-
-void TestGLCanvas::InitGL(void)
-{
- GLfloat light0_pos[4] = { -50.0, 50.0, 0.0, 0.0 };
- GLfloat light0_color[4] = { .6, .6, .6, 1.0 }; /* white light */
- GLfloat light1_pos[4] = { 50.0, 50.0, 0.0, 0.0 };
- GLfloat light1_color[4] = { .4, .4, 1, 1.0 }; /* cold blue light */
-
- /* remove back faces */
- glDisable(GL_CULL_FACE);
- glEnable(GL_DEPTH_TEST);
-
- /* speedups */
- glEnable(GL_DITHER);
- glShadeModel(GL_SMOOTH);
- glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
- glHint(GL_POLYGON_SMOOTH_HINT, GL_FASTEST);
-
- /* light */
- glLightfv(GL_LIGHT0, GL_POSITION, light0_pos);
- glLightfv(GL_LIGHT0, GL_DIFFUSE, light0_color);
- glLightfv(GL_LIGHT1, GL_POSITION, light1_pos);
- glLightfv(GL_LIGHT1, GL_DIFFUSE, light1_color);
- glEnable(GL_LIGHT0);
- glEnable(GL_LIGHT1);
- glEnable(GL_LIGHTING);
-
- glColorMaterial(GL_FRONT_AND_BACK,GL_AMBIENT_AND_DIFFUSE);
- glEnable(GL_COLOR_MATERIAL);
-}
-
-
projects / wxWidgets.git / blobdiff