2f6c54eb07
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14660 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
531 lines
14 KiB
C++
531 lines
14 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: cube.cpp
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// Purpose: wxGLCanvas demo program
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// Author: Julian Smart
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// Modified by:
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// Created: 04/01/98
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation
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#pragma interface
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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#include "wx/log.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 "cube.h"
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#ifndef __WXMSW__ // for wxStopWatch, see remark below
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#if defined(__WXMAC__) && !defined(__DARWIN__)
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#include <utime.h>
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#include <unistd.h>
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#else
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#include <sys/time.h>
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#include <sys/unistd.h>
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#endif
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#else
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#include <sys/timeb.h>
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#endif
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#define ID_NEW_WINDOW 10000
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#define ID_DEF_ROTATE_LEFT_KEY 10001
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#define ID_DEF_ROTATE_RIGHT_KEY 10002
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/*----------------------------------------------------------
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Control to get a keycode
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----------------------------------------------------------*/
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class ScanCodeCtrl : public wxTextCtrl
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{
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public:
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ScanCodeCtrl( wxWindow* parent, wxWindowID id, int code,
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const wxPoint& pos, const wxSize& size );
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void OnChar( wxKeyEvent& event ) { } /* do nothing */
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void OnKeyDown(wxKeyEvent& event);
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private:
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// any class wishing to process wxWindows events must use this macro
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DECLARE_EVENT_TABLE()
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};
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BEGIN_EVENT_TABLE( ScanCodeCtrl, wxTextCtrl )
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EVT_CHAR( ScanCodeCtrl::OnChar )
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EVT_KEY_DOWN( ScanCodeCtrl::OnKeyDown )
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END_EVENT_TABLE()
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ScanCodeCtrl::ScanCodeCtrl( wxWindow* parent, wxWindowID id, int code,
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const wxPoint& pos, const wxSize& size )
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: wxTextCtrl( parent, id, "", pos, size )
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{ wxString buf;
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buf.Printf( "0x%04x", code );
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SetValue( buf );
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}
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void ScanCodeCtrl::OnKeyDown( wxKeyEvent& event )
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{ wxString buf;
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buf.Printf( "0x%04x", event.KeyCode() );
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SetValue( buf );
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}
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/*------------------------------------------------------------------
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Dialog for defining a keypress
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-------------------------------------------------------------------*/
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class ScanCodeDialog : public wxDialog
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{
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public:
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ScanCodeDialog( wxWindow* parent, wxWindowID id, const int code,
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const wxString &descr, const wxString& title );
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int GetValue();
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private:
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ScanCodeCtrl *m_ScanCode;
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wxTextCtrl *m_Description;
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};
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ScanCodeDialog::ScanCodeDialog( wxWindow* parent, wxWindowID id,
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const int code, const wxString &descr, const wxString& title )
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: wxDialog( parent, id, title, wxPoint(-1, -1), wxSize(96*2,76*2) )
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{
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new wxStaticText( this, -1, "Scancode", wxPoint(4*2,3*2),
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wxSize(31*2,12*2) );
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m_ScanCode = new ScanCodeCtrl( this, -1, code, wxPoint(37*2,6*2),
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wxSize(53*2,14*2) );
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new wxStaticText( this, -1, "Description", wxPoint(4*2,24*2),
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wxSize(32*2,12*2) );
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m_Description = new wxTextCtrl( this, -1, descr, wxPoint(37*2,27*2),
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wxSize(53*2,14*2) );
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new wxButton( this, wxID_OK, "Ok", wxPoint(20*2,50*2), wxSize(20*2,13*2) );
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new wxButton( this, wxID_CANCEL, "Cancel", wxPoint(44*2,50*2),
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wxSize(25*2,13*2) );
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}
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int ScanCodeDialog::GetValue()
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{
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int code;
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wxString buf = m_ScanCode->GetValue();
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sscanf( buf.c_str(), "%i", &code );
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return( code );
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}
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/*----------------------------------------------------------------------
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Utility function to get the elapsed time (in msec) since a given point
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in time (in sec) (because current version of wxGetElapsedTime doesn´t
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works right with glibc-2.1 and linux, at least for me)
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-----------------------------------------------------------------------*/
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unsigned long wxStopWatch( unsigned long *sec_base )
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{
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unsigned long secs,msec;
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#if defined(__WXMSW__)
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struct timeb tb;
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ftime( &tb );
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secs = tb.time;
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msec = tb.millitm;
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#elif defined(__WXMAC__) && !defined(__DARWIN__)
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wxLongLong tl = wxGetLocalTimeMillis();
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secs = (unsigned long) (tl.GetValue() / 1000);
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msec = (unsigned long) (tl.GetValue() - secs*1000);
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#else
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// think every unice has gettimeofday
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struct timeval tv;
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gettimeofday( &tv, (struct timezone *)NULL );
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secs = tv.tv_sec;
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msec = tv.tv_usec/1000;
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#endif
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if( *sec_base == 0 )
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*sec_base = secs;
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return( (secs-*sec_base)*1000 + msec );
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}
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/*----------------------------------------------------------------
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Implementation of Test-GLCanvas
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-----------------------------------------------------------------*/
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BEGIN_EVENT_TABLE(TestGLCanvas, wxGLCanvas)
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EVT_SIZE(TestGLCanvas::OnSize)
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EVT_PAINT(TestGLCanvas::OnPaint)
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EVT_ERASE_BACKGROUND(TestGLCanvas::OnEraseBackground)
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EVT_KEY_DOWN( TestGLCanvas::OnKeyDown )
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EVT_KEY_UP( TestGLCanvas::OnKeyUp )
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EVT_ENTER_WINDOW( TestGLCanvas::OnEnterWindow )
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END_EVENT_TABLE()
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unsigned long TestGLCanvas::m_secbase = 0;
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int TestGLCanvas::m_TimeInitialized = 0;
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unsigned long TestGLCanvas::m_xsynct;
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unsigned long TestGLCanvas::m_gsynct;
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TestGLCanvas::TestGLCanvas(wxWindow *parent, wxWindowID id,
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const wxPoint& pos, const wxSize& size, long style, const wxString& name):
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wxGLCanvas(parent, (wxGLCanvas*) NULL, id, pos, size, style, name )
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{
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m_init = FALSE;
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m_gllist = 0;
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m_rleft = WXK_LEFT;
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m_rright = WXK_RIGHT;
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}
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TestGLCanvas::TestGLCanvas(wxWindow *parent, const TestGLCanvas &other,
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wxWindowID id, const wxPoint& pos, const wxSize& size, long style,
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const wxString& name ) :
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wxGLCanvas(parent, other.GetContext(), id, pos, size, style, name )
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{
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m_init = FALSE;
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m_gllist = other.m_gllist; /* share display list */
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m_rleft = WXK_LEFT;
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m_rright = WXK_RIGHT;
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}
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TestGLCanvas::~TestGLCanvas()
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{
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}
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void TestGLCanvas::Render()
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{
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wxPaintDC dc(this);
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#ifndef __WXMOTIF__
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if (!GetContext()) return;
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#endif
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SetCurrent();
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/* init OpenGL once, but after SetCurrent */
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if (!m_init)
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{
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InitGL();
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m_init = TRUE;
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}
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glFrustum(-0.5F, 0.5F, -0.5F, 0.5F, 1.0F, 3.0F);
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glMatrixMode(GL_MODELVIEW);
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/* clear color and depth buffers */
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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if( m_gllist == 0 )
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{
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m_gllist = glGenLists( 1 );
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glNewList( m_gllist, GL_COMPILE_AND_EXECUTE );
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/* draw six faces of a cube */
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glBegin(GL_QUADS);
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glNormal3f( 0.0F, 0.0F, 1.0F);
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glVertex3f( 0.5F, 0.5F, 0.5F); glVertex3f(-0.5F, 0.5F, 0.5F);
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glVertex3f(-0.5F,-0.5F, 0.5F); glVertex3f( 0.5F,-0.5F, 0.5F);
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glNormal3f( 0.0F, 0.0F,-1.0F);
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glVertex3f(-0.5F,-0.5F,-0.5F); glVertex3f(-0.5F, 0.5F,-0.5F);
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glVertex3f( 0.5F, 0.5F,-0.5F); glVertex3f( 0.5F,-0.5F,-0.5F);
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glNormal3f( 0.0F, 1.0F, 0.0F);
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glVertex3f( 0.5F, 0.5F, 0.5F); glVertex3f( 0.5F, 0.5F,-0.5F);
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glVertex3f(-0.5F, 0.5F,-0.5F); glVertex3f(-0.5F, 0.5F, 0.5F);
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glNormal3f( 0.0F,-1.0F, 0.0F);
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glVertex3f(-0.5F,-0.5F,-0.5F); glVertex3f( 0.5F,-0.5F,-0.5F);
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glVertex3f( 0.5F,-0.5F, 0.5F); glVertex3f(-0.5F,-0.5F, 0.5F);
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glNormal3f( 1.0F, 0.0F, 0.0F);
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glVertex3f( 0.5F, 0.5F, 0.5F); glVertex3f( 0.5F,-0.5F, 0.5F);
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glVertex3f( 0.5F,-0.5F,-0.5F); glVertex3f( 0.5F, 0.5F,-0.5F);
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glNormal3f(-1.0F, 0.0F, 0.0F);
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glVertex3f(-0.5F,-0.5F,-0.5F); glVertex3f(-0.5F,-0.5F, 0.5F);
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glVertex3f(-0.5F, 0.5F, 0.5F); glVertex3f(-0.5F, 0.5F,-0.5F);
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glEnd();
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glEndList();
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}
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else
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glCallList( m_gllist );
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glFlush();
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SwapBuffers();
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}
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void TestGLCanvas::OnEnterWindow( wxMouseEvent& event )
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{
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SetFocus();
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}
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void TestGLCanvas::OnPaint( wxPaintEvent& event )
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{
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Render();
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}
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void TestGLCanvas::OnSize(wxSizeEvent& event)
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{
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// this is also necessary to update the context on some platforms
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wxGLCanvas::OnSize(event);
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// set GL viewport (not called by wxGLCanvas::OnSize on all platforms...)
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int w, h;
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GetClientSize(&w, &h);
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#ifndef __WXMOTIF__
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if (GetContext())
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#endif
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{
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SetCurrent();
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glViewport(0, 0, (GLint) w, (GLint) h);
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}
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}
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void TestGLCanvas::OnEraseBackground(wxEraseEvent& event)
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{
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// Do nothing, to avoid flashing.
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}
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void TestGLCanvas::InitGL()
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{
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SetCurrent();
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/* set viewing projection */
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glMatrixMode(GL_PROJECTION);
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glFrustum(-0.5F, 0.5F, -0.5F, 0.5F, 1.0F, 3.0F);
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/* position viewer */
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glMatrixMode(GL_MODELVIEW);
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glTranslatef(0.0F, 0.0F, -2.0F);
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/* position object */
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glRotatef(30.0F, 1.0F, 0.0F, 0.0F);
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glRotatef(30.0F, 0.0F, 1.0F, 0.0F);
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glEnable(GL_DEPTH_TEST);
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glEnable(GL_LIGHTING);
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glEnable(GL_LIGHT0);
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}
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GLfloat TestGLCanvas::CalcRotateSpeed( unsigned long acceltime )
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{
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GLfloat t,v;
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t = ((GLfloat)acceltime) / 1000.0f;
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if( t < 0.5f )
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v = t;
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else if( t < 1.0f )
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v = t * (2.0f - t);
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else
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v = 0.75f;
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return(v);
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}
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GLfloat TestGLCanvas::CalcRotateAngle( unsigned long lasttime,
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unsigned long acceltime )
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{
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GLfloat t,s1,s2;
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t = ((GLfloat)(acceltime - lasttime)) / 1000.0f;
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s1 = CalcRotateSpeed( lasttime );
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s2 = CalcRotateSpeed( acceltime );
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return( t * (s1 + s2) * 135.0f );
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}
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void TestGLCanvas::Action( long code, unsigned long lasttime,
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unsigned long acceltime )
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{
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GLfloat angle = CalcRotateAngle( lasttime, acceltime );
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if (code == m_rleft)
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Rotate( angle );
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else if (code == m_rright)
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Rotate( -angle );
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}
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void TestGLCanvas::OnKeyDown( wxKeyEvent& event )
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{
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long evkey = event.KeyCode();
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if (evkey == 0) return;
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if (!m_TimeInitialized)
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{
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m_TimeInitialized = 1;
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m_xsynct = event.m_timeStamp;
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m_gsynct = wxStopWatch(&m_secbase);
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m_Key = evkey;
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m_StartTime = 0;
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m_LastTime = 0;
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m_LastRedraw = 0;
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}
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unsigned long currTime = event.m_timeStamp - m_xsynct;
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if (evkey != m_Key)
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{
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m_Key = evkey;
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m_LastRedraw = m_StartTime = m_LastTime = currTime;
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}
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if (currTime >= m_LastRedraw) // Redraw:
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{
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Action( m_Key, m_LastTime-m_StartTime, currTime-m_StartTime );
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#if defined(__WXMAC__) && !defined(__DARWIN__)
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m_LastRedraw = currTime; // wxStopWatch() doesn't work on Mac...
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#else
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m_LastRedraw = wxStopWatch(&m_secbase) - m_gsynct;
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#endif
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m_LastTime = currTime;
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}
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event.Skip();
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}
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void TestGLCanvas::OnKeyUp( wxKeyEvent& event )
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{
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m_Key = 0;
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m_StartTime = 0;
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m_LastTime = 0;
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m_LastRedraw = 0;
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event.Skip();
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}
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void TestGLCanvas::Rotate( GLfloat deg )
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{
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SetCurrent();
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glMatrixMode(GL_MODELVIEW);
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glRotatef((GLfloat)deg, 0.0F, 0.0F, 1.0F);
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Refresh(FALSE);
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}
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/* -----------------------------------------------------------------------
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Main Window
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-------------------------------------------------------------------------*/
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BEGIN_EVENT_TABLE(MyFrame, wxFrame)
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EVT_MENU(wxID_EXIT, MyFrame::OnExit)
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EVT_MENU( ID_NEW_WINDOW, MyFrame::OnNewWindow)
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EVT_MENU( ID_DEF_ROTATE_LEFT_KEY, MyFrame::OnDefRotateLeftKey)
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EVT_MENU( ID_DEF_ROTATE_RIGHT_KEY, MyFrame::OnDefRotateRightKey)
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END_EVENT_TABLE()
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// My frame constructor
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MyFrame::MyFrame(wxFrame *frame, const wxString& title, const wxPoint& pos,
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const wxSize& size, long style)
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: wxFrame(frame, -1, title, pos, size, style)
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{
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m_canvas = NULL;
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}
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// Intercept menu commands
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void MyFrame::OnExit(wxCommandEvent& event)
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{
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Destroy();
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}
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void MyFrame::OnNewWindow(wxCommandEvent& event)
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{
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MyFrame *frame = new MyFrame(NULL, "Cube OpenGL Demo Clone",
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wxPoint(50, 50), wxSize(400, 300));
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// Give it an icon
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#ifdef __WXMSW__
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frame->SetIcon(wxIcon("mondrian"));
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#endif
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// Make a menubar
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wxMenu *winMenu = new wxMenu;
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winMenu->Append(wxID_EXIT, "&Close");
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winMenu->Append(ID_NEW_WINDOW, "&New" );
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wxMenuBar *menuBar = new wxMenuBar;
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menuBar->Append(winMenu, "&Window");
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winMenu = new wxMenu;
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winMenu->Append(ID_DEF_ROTATE_LEFT_KEY, "Rotate &left");
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winMenu->Append(ID_DEF_ROTATE_RIGHT_KEY, "Rotate &right");
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menuBar->Append(winMenu, "&Key");
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frame->SetMenuBar(menuBar);
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frame->m_canvas = new TestGLCanvas( frame, *m_canvas, -1,
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wxDefaultPosition, wxDefaultSize );
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// Show the frame
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frame->Show(TRUE);
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}
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void MyFrame::OnDefRotateLeftKey(wxCommandEvent& event)
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{
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ScanCodeDialog dial( this, -1, m_canvas->m_rleft,
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wxString("Left"), "Define key" );
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int result = dial.ShowModal();
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if( result == wxID_OK )
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m_canvas->m_rleft = dial.GetValue();
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}
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void MyFrame::OnDefRotateRightKey(wxCommandEvent& event)
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{
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ScanCodeDialog dial( this, -1, m_canvas->m_rright,
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wxString("Right"), "Define key" );
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int result = dial.ShowModal();
|
||
if( result == wxID_OK )
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m_canvas->m_rright = dial.GetValue();
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}
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||
|
||
/*------------------------------------------------------------------
|
||
Application object ( equivalent to main() )
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||
------------------------------------------------------------------ */
|
||
|
||
IMPLEMENT_APP(MyApp)
|
||
|
||
bool MyApp::OnInit(void)
|
||
{
|
||
wxLog::SetTraceMask(wxTraceMessages);
|
||
|
||
// Create the main frame window
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||
MyFrame *frame = new MyFrame(NULL, "Cube OpenGL Demo", wxPoint(50, 50),
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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, wxDefaultPosition, wxDefaultSize);
|
||
|
||
// Show the frame
|
||
frame->Show(TRUE);
|
||
|
||
return TRUE;
|
||
}
|