8b089c5e8c
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6326 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
509 lines
13 KiB
C++
509 lines
13 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
||
// Name: cube.cpp
|
||
// Purpose: wxGLCanvas demo program
|
||
// Author: Julian Smart
|
||
// Modified by:
|
||
// Created: 04/01/98
|
||
// RCS-ID: $Id$
|
||
// Copyright: (c) Julian Smart
|
||
// 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 "wx/log.h"
|
||
|
||
#include "cube.h"
|
||
|
||
#ifndef __WXMSW__ // for wxStopWatch, see remark below
|
||
#include <sys/time.h>
|
||
#include <sys/unistd.h>
|
||
#else
|
||
#include <sys/timeb.h>
|
||
#endif
|
||
|
||
#define ID_NEW_WINDOW 10000
|
||
#define ID_DEF_ROTATE_LEFT_KEY 10001
|
||
#define ID_DEF_ROTATE_RIGHT_KEY 10002
|
||
|
||
/*----------------------------------------------------------
|
||
Control to get a keycode
|
||
----------------------------------------------------------*/
|
||
class ScanCodeCtrl : public wxTextCtrl
|
||
{
|
||
public:
|
||
ScanCodeCtrl( wxWindow* parent, wxWindowID id, int code,
|
||
const wxPoint& pos, const wxSize& size );
|
||
void OnChar( wxKeyEvent& event ) { } /* do nothing */
|
||
void OnKeyDown(wxKeyEvent& event);
|
||
private:
|
||
// any class wishing to process wxWindows events must use this macro
|
||
DECLARE_EVENT_TABLE()
|
||
};
|
||
BEGIN_EVENT_TABLE( ScanCodeCtrl, wxTextCtrl )
|
||
EVT_CHAR( ScanCodeCtrl::OnChar )
|
||
EVT_KEY_DOWN( ScanCodeCtrl::OnKeyDown )
|
||
END_EVENT_TABLE()
|
||
|
||
ScanCodeCtrl::ScanCodeCtrl( wxWindow* parent, wxWindowID id, int code,
|
||
const wxPoint& pos, const wxSize& size )
|
||
: wxTextCtrl( parent, id, "", pos, size )
|
||
{ wxString buf;
|
||
buf.Printf( "0x%04x", code );
|
||
SetValue( buf );
|
||
}
|
||
|
||
void ScanCodeCtrl::OnKeyDown( wxKeyEvent& event )
|
||
{ wxString buf;
|
||
buf.Printf( "0x%04x", event.KeyCode() );
|
||
SetValue( buf );
|
||
}
|
||
|
||
/*------------------------------------------------------------------
|
||
Dialog for defining a keypress
|
||
-------------------------------------------------------------------*/
|
||
|
||
class ScanCodeDialog : public wxDialog
|
||
{
|
||
public:
|
||
ScanCodeDialog( wxWindow* parent, wxWindowID id, const int code,
|
||
const wxString &descr, const wxString& title );
|
||
int GetValue();
|
||
private:
|
||
ScanCodeCtrl *m_ScanCode;
|
||
wxTextCtrl *m_Description;
|
||
};
|
||
|
||
ScanCodeDialog::ScanCodeDialog( wxWindow* parent, wxWindowID id,
|
||
const int code, const wxString &descr, const wxString& title )
|
||
: wxDialog( parent, id, title, wxPoint(-1, -1), wxSize(96*2,76*2) )
|
||
{
|
||
new wxStaticText( this, -1, "Scancode", wxPoint(4*2,3*2),
|
||
wxSize(31*2,12*2) );
|
||
m_ScanCode = new ScanCodeCtrl( this, -1, code, wxPoint(37*2,6*2),
|
||
wxSize(53*2,14*2) );
|
||
|
||
new wxStaticText( this, -1, "Description", wxPoint(4*2,24*2),
|
||
wxSize(32*2,12*2) );
|
||
m_Description = new wxTextCtrl( this, -1, descr, wxPoint(37*2,27*2),
|
||
wxSize(53*2,14*2) );
|
||
|
||
new wxButton( this, wxID_OK, "Ok", wxPoint(20*2,50*2), wxSize(20*2,13*2) );
|
||
new wxButton( this, wxID_CANCEL, "Cancel", wxPoint(44*2,50*2),
|
||
wxSize(25*2,13*2) );
|
||
}
|
||
|
||
int ScanCodeDialog::GetValue()
|
||
{
|
||
int code;
|
||
wxString buf = m_ScanCode->GetValue();
|
||
sscanf( buf.c_str(), "%i", &code );
|
||
return( code );
|
||
}
|
||
|
||
/*----------------------------------------------------------------------
|
||
Utility function to get the elapsed time (in msec) since a given point
|
||
in time (in sec) (because current version of wxGetElapsedTime doesn<73>t
|
||
works right with glibc-2.1 and linux, at least for me)
|
||
-----------------------------------------------------------------------*/
|
||
unsigned long wxStopWatch( unsigned long *sec_base )
|
||
{
|
||
unsigned long secs,msec;
|
||
|
||
#ifndef __WXMSW__ // think every unice has gettimeofday
|
||
struct timeval tv;
|
||
gettimeofday( &tv, (struct timezone *)NULL );
|
||
secs = tv.tv_sec;
|
||
msec = tv.tv_usec/1000;
|
||
#else
|
||
struct timeb tb;
|
||
|
||
ftime( &tb );
|
||
|
||
secs = tb.time;
|
||
|
||
msec = tb.millitm;
|
||
|
||
#endif
|
||
|
||
if( *sec_base == 0 )
|
||
*sec_base = secs;
|
||
|
||
return( (secs-*sec_base)*1000 + msec );
|
||
}
|
||
|
||
/*----------------------------------------------------------------
|
||
Implementation of Test-GLCanvas
|
||
-----------------------------------------------------------------*/
|
||
|
||
BEGIN_EVENT_TABLE(TestGLCanvas, wxGLCanvas)
|
||
EVT_SIZE(TestGLCanvas::OnSize)
|
||
EVT_PAINT(TestGLCanvas::OnPaint)
|
||
EVT_ERASE_BACKGROUND(TestGLCanvas::OnEraseBackground)
|
||
EVT_KEY_DOWN( TestGLCanvas::OnKeyDown )
|
||
EVT_KEY_UP( TestGLCanvas::OnKeyUp )
|
||
EVT_ENTER_WINDOW( TestGLCanvas::OnEnterWindow )
|
||
END_EVENT_TABLE()
|
||
|
||
unsigned long TestGLCanvas::m_secbase = 0;
|
||
int TestGLCanvas::m_TimeInitialized = 0;
|
||
unsigned long TestGLCanvas::m_xsynct;
|
||
unsigned long TestGLCanvas::m_gsynct;
|
||
|
||
TestGLCanvas::TestGLCanvas(wxWindow *parent, wxWindowID id,
|
||
const wxPoint& pos, const wxSize& size, long style, const wxString& name):
|
||
wxGLCanvas(parent, (wxGLCanvas*) NULL, id, pos, size, style, name )
|
||
{
|
||
m_init = FALSE;
|
||
m_gllist = 0;
|
||
m_rleft = WXK_LEFT;
|
||
m_rright = WXK_RIGHT;
|
||
}
|
||
|
||
TestGLCanvas::TestGLCanvas(wxWindow *parent, const TestGLCanvas &other,
|
||
wxWindowID id, const wxPoint& pos, const wxSize& size, long style,
|
||
const wxString& name ) :
|
||
wxGLCanvas(parent, other.GetContext(), id, pos, size, style, name )
|
||
{
|
||
m_init = FALSE;
|
||
m_gllist = other.m_gllist; /* share display list */
|
||
m_rleft = WXK_LEFT;
|
||
m_rright = WXK_RIGHT;
|
||
}
|
||
|
||
TestGLCanvas::~TestGLCanvas()
|
||
{
|
||
}
|
||
|
||
void TestGLCanvas::Render()
|
||
{
|
||
wxPaintDC dc(this);
|
||
|
||
#ifndef __WXMOTIF__
|
||
if (!GetContext()) return;
|
||
#endif
|
||
|
||
SetCurrent();
|
||
/* init OpenGL once, but after SetCurrent */
|
||
if (!m_init)
|
||
{
|
||
InitGL();
|
||
m_init = TRUE;
|
||
}
|
||
|
||
/* clear color and depth buffers */
|
||
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
||
|
||
if( m_gllist == 0 )
|
||
{
|
||
m_gllist = glGenLists( 1 );
|
||
glNewList( m_gllist, GL_COMPILE_AND_EXECUTE );
|
||
/* draw six faces of a cube */
|
||
glBegin(GL_QUADS);
|
||
glNormal3f( 0.0F, 0.0F, 1.0F);
|
||
glVertex3f( 0.5F, 0.5F, 0.5F); glVertex3f(-0.5F, 0.5F, 0.5F);
|
||
glVertex3f(-0.5F,-0.5F, 0.5F); glVertex3f( 0.5F,-0.5F, 0.5F);
|
||
|
||
glNormal3f( 0.0F, 0.0F,-1.0F);
|
||
glVertex3f(-0.5F,-0.5F,-0.5F); glVertex3f(-0.5F, 0.5F,-0.5F);
|
||
glVertex3f( 0.5F, 0.5F,-0.5F); glVertex3f( 0.5F,-0.5F,-0.5F);
|
||
|
||
glNormal3f( 0.0F, 1.0F, 0.0F);
|
||
glVertex3f( 0.5F, 0.5F, 0.5F); glVertex3f( 0.5F, 0.5F,-0.5F);
|
||
glVertex3f(-0.5F, 0.5F,-0.5F); glVertex3f(-0.5F, 0.5F, 0.5F);
|
||
|
||
glNormal3f( 0.0F,-1.0F, 0.0F);
|
||
glVertex3f(-0.5F,-0.5F,-0.5F); glVertex3f( 0.5F,-0.5F,-0.5F);
|
||
glVertex3f( 0.5F,-0.5F, 0.5F); glVertex3f(-0.5F,-0.5F, 0.5F);
|
||
|
||
glNormal3f( 1.0F, 0.0F, 0.0F);
|
||
glVertex3f( 0.5F, 0.5F, 0.5F); glVertex3f( 0.5F,-0.5F, 0.5F);
|
||
glVertex3f( 0.5F,-0.5F,-0.5F); glVertex3f( 0.5F, 0.5F,-0.5F);
|
||
|
||
glNormal3f(-1.0F, 0.0F, 0.0F);
|
||
glVertex3f(-0.5F,-0.5F,-0.5F); glVertex3f(-0.5F,-0.5F, 0.5F);
|
||
glVertex3f(-0.5F, 0.5F, 0.5F); glVertex3f(-0.5F, 0.5F,-0.5F);
|
||
glEnd();
|
||
|
||
glEndList();
|
||
}
|
||
else
|
||
glCallList( m_gllist );
|
||
|
||
glFlush();
|
||
SwapBuffers();
|
||
}
|
||
|
||
void TestGLCanvas::OnEnterWindow( wxMouseEvent& event )
|
||
{
|
||
SetFocus();
|
||
}
|
||
|
||
void TestGLCanvas::OnPaint( wxPaintEvent& event )
|
||
{
|
||
Render();
|
||
}
|
||
|
||
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.
|
||
}
|
||
|
||
void TestGLCanvas::InitGL()
|
||
{
|
||
SetCurrent();
|
||
|
||
/* set viewing projection */
|
||
glMatrixMode(GL_PROJECTION);
|
||
glFrustum(-0.5F, 0.5F, -0.5F, 0.5F, 1.0F, 3.0F);
|
||
|
||
/* position viewer */
|
||
glMatrixMode(GL_MODELVIEW);
|
||
glTranslatef(0.0F, 0.0F, -2.0F);
|
||
|
||
/* position object */
|
||
glRotatef(30.0F, 1.0F, 0.0F, 0.0F);
|
||
glRotatef(30.0F, 0.0F, 1.0F, 0.0F);
|
||
|
||
glEnable(GL_DEPTH_TEST);
|
||
glEnable(GL_LIGHTING);
|
||
glEnable(GL_LIGHT0);
|
||
}
|
||
|
||
GLfloat TestGLCanvas::CalcRotateSpeed( unsigned long acceltime )
|
||
{
|
||
GLfloat t,v;
|
||
|
||
t = ((GLfloat)acceltime) / 1000.0f;
|
||
|
||
if( t < 0.5f )
|
||
v = t;
|
||
else if( t < 1.0f )
|
||
v = t * (2.0f - t);
|
||
else
|
||
v = 0.75f;
|
||
|
||
return(v);
|
||
}
|
||
|
||
GLfloat TestGLCanvas::CalcRotateAngle( unsigned long lasttime,
|
||
unsigned long acceltime )
|
||
{
|
||
GLfloat t,s1,s2;
|
||
|
||
t = ((GLfloat)(acceltime - lasttime)) / 1000.0f;
|
||
s1 = CalcRotateSpeed( lasttime );
|
||
s2 = CalcRotateSpeed( acceltime );
|
||
|
||
return( t * (s1 + s2) * 135.0f );
|
||
}
|
||
|
||
void TestGLCanvas::Action( long code, unsigned long lasttime,
|
||
unsigned long acceltime )
|
||
{
|
||
GLfloat angle = CalcRotateAngle( lasttime, acceltime );
|
||
|
||
if (code == m_rleft)
|
||
Rotate( angle );
|
||
else if (code == m_rright)
|
||
Rotate( -angle );
|
||
}
|
||
|
||
void TestGLCanvas::OnKeyDown( wxKeyEvent& event )
|
||
{
|
||
long evkey = event.KeyCode();
|
||
if (evkey == 0) return;
|
||
|
||
if (!m_TimeInitialized)
|
||
{
|
||
m_TimeInitialized = 1;
|
||
m_xsynct = event.m_timeStamp;
|
||
m_gsynct = wxStopWatch(&m_secbase);
|
||
|
||
m_Key = evkey;
|
||
m_StartTime = 0;
|
||
m_LastTime = 0;
|
||
m_LastRedraw = 0;
|
||
}
|
||
|
||
unsigned long currTime = event.m_timeStamp - m_xsynct;
|
||
|
||
if (evkey != m_Key)
|
||
{
|
||
m_Key = evkey;
|
||
m_LastRedraw = m_StartTime = m_LastTime = currTime;
|
||
}
|
||
|
||
if (currTime >= m_LastRedraw) // Redraw:
|
||
{
|
||
Action( m_Key, m_LastTime-m_StartTime, currTime-m_StartTime );
|
||
|
||
m_LastRedraw = wxStopWatch(&m_secbase) - m_gsynct;
|
||
m_LastTime = currTime;
|
||
}
|
||
|
||
event.Skip();
|
||
}
|
||
|
||
void TestGLCanvas::OnKeyUp( wxKeyEvent& event )
|
||
{
|
||
m_Key = 0;
|
||
m_StartTime = 0;
|
||
m_LastTime = 0;
|
||
m_LastRedraw = 0;
|
||
|
||
event.Skip();
|
||
}
|
||
|
||
void TestGLCanvas::Rotate( GLfloat deg )
|
||
{
|
||
SetCurrent();
|
||
|
||
glMatrixMode(GL_MODELVIEW);
|
||
glRotatef((GLfloat)deg, 0.0F, 0.0F, 1.0F);
|
||
Refresh(FALSE);
|
||
}
|
||
|
||
|
||
/* -----------------------------------------------------------------------
|
||
Main Window
|
||
-------------------------------------------------------------------------*/
|
||
|
||
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
|
||
EVT_MENU(wxID_EXIT, MyFrame::OnExit)
|
||
EVT_MENU( ID_NEW_WINDOW, MyFrame::OnNewWindow)
|
||
EVT_MENU( ID_DEF_ROTATE_LEFT_KEY, MyFrame::OnDefRotateLeftKey)
|
||
EVT_MENU( ID_DEF_ROTATE_RIGHT_KEY, MyFrame::OnDefRotateRightKey)
|
||
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();
|
||
}
|
||
|
||
void MyFrame::OnNewWindow()
|
||
{
|
||
MyFrame *frame = new MyFrame(NULL, "Cube OpenGL Demo Clone",
|
||
wxPoint(50, 50), wxSize(400, 300));
|
||
// Give it an icon
|
||
#ifdef wx_msw
|
||
frame->SetIcon(wxIcon("mondrian"));
|
||
#endif
|
||
|
||
// Make a menubar
|
||
wxMenu *winMenu = new wxMenu;
|
||
|
||
winMenu->Append(wxID_EXIT, "&Close");
|
||
winMenu->Append(ID_NEW_WINDOW, "&New" );
|
||
wxMenuBar *menuBar = new wxMenuBar;
|
||
menuBar->Append(winMenu, "&Window");
|
||
|
||
winMenu = new wxMenu;
|
||
winMenu->Append(ID_DEF_ROTATE_LEFT_KEY, "Rotate &left");
|
||
winMenu->Append(ID_DEF_ROTATE_RIGHT_KEY, "Rotate &right");
|
||
menuBar->Append(winMenu, "&Key");
|
||
|
||
frame->SetMenuBar(menuBar);
|
||
|
||
frame->m_canvas = new TestGLCanvas( frame, *m_canvas, -1,
|
||
wxPoint(0, 0), wxSize(200, 200) );
|
||
|
||
// Show the frame
|
||
frame->Show(TRUE);
|
||
}
|
||
|
||
void MyFrame::OnDefRotateLeftKey()
|
||
{
|
||
ScanCodeDialog dial( this, -1, m_canvas->m_rleft,
|
||
wxString("Left"), "Define key" );
|
||
int result = dial.ShowModal();
|
||
if( result == wxID_OK )
|
||
m_canvas->m_rleft = dial.GetValue();
|
||
}
|
||
void MyFrame::OnDefRotateRightKey()
|
||
{
|
||
ScanCodeDialog dial( this, -1, m_canvas->m_rright,
|
||
wxString("Right"), "Define key" );
|
||
int result = dial.ShowModal();
|
||
if( result == wxID_OK )
|
||
m_canvas->m_rright = dial.GetValue();
|
||
}
|
||
|
||
/*------------------------------------------------------------------
|
||
Application object ( equivalent to main() )
|
||
------------------------------------------------------------------ */
|
||
|
||
IMPLEMENT_APP(MyApp)
|
||
|
||
bool MyApp::OnInit(void)
|
||
{
|
||
wxLog::SetTraceMask(wxTraceMessages);
|
||
|
||
// Create the main frame window
|
||
MyFrame *frame = new MyFrame(NULL, "Cube OpenGL Demo", wxPoint(50, 50),
|
||
wxSize(400, 300));
|
||
// Give it an icon
|
||
#ifdef wx_msw
|
||
frame->SetIcon(wxIcon("mondrian"));
|
||
#endif
|
||
|
||
// Make a menubar
|
||
wxMenu *winMenu = new wxMenu;
|
||
|
||
winMenu->Append(wxID_EXIT, "&Close");
|
||
winMenu->Append(ID_NEW_WINDOW, "&New" );
|
||
wxMenuBar *menuBar = new wxMenuBar;
|
||
menuBar->Append(winMenu, "&Window");
|
||
|
||
winMenu = new wxMenu;
|
||
winMenu->Append(ID_DEF_ROTATE_LEFT_KEY, "Rotate &left");
|
||
winMenu->Append(ID_DEF_ROTATE_RIGHT_KEY, "Rotate &right");
|
||
menuBar->Append(winMenu, "&Key");
|
||
|
||
frame->SetMenuBar(menuBar);
|
||
|
||
frame->m_canvas = new TestGLCanvas(frame, -1, wxPoint(0, 0), wxSize(200, 200));
|
||
|
||
// Show the frame
|
||
frame->Show(TRUE);
|
||
|
||
return TRUE;
|
||
}
|