OpenGl works now under GTK
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1360 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
236
utils/glcanvas/samples/penguin/penguin.cpp
Normal file
236
utils/glcanvas/samples/penguin/penguin.cpp
Normal file
@@ -0,0 +1,236 @@
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
// 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();
|
||||
}
|
||||
|
||||
bool MyFrame::OnClose(void)
|
||||
{
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
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);
|
||||
|
||||
if (!GetContext()) return;
|
||||
|
||||
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);
|
||||
|
||||
if (GetContext())
|
||||
{
|
||||
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 )
|
||||
{
|
||||
if (event.Dragging())
|
||||
{
|
||||
/* drag in progress, simulate trackball */
|
||||
float spin_quat[4];
|
||||
trackball(spin_quat,
|
||||
(2.0*info.beginx - m_width) / m_width,
|
||||
( m_height - 2.0*info.beginy) / m_height,
|
||||
( 2.0*event.GetX() - m_width) / m_width,
|
||||
( m_height - 2.0*event.GetY()) / m_height);
|
||||
|
||||
add_quats( spin_quat, info.quat, info.quat );
|
||||
|
||||
/* orientation has changed, redraw mesh */
|
||||
Refresh();
|
||||
}
|
||||
|
||||
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);
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user