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[wxWidgets.git] / utils / glcanvas / samples / cube / cube.cpp

diff --git a/utils/glcanvas/samples/cube/cube.cpp b/utils/glcanvas/samples/cube/cube.cpp
index 675cdaba73d8b2c00da617baf5af5e9adc6bc496..be5d196b336e23e06e8181f1eb09591a007da677 100644 (file)
--- a/utils/glcanvas/samples/cube/cube.cpp
+++ b/utils/glcanvas/samples/cube/cube.cpp
@@ -29,111 +29,186 @@
 
 #include "cube.h"
 
 
 #include "cube.h"
 

-// `Main program' equivalent, creating windows and returning main app frame
-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"));
+#ifndef __WXMSW__     // for wxStopWatch, see remark below 
+#include <sys/time.h>
+#include <sys/unistd.h>
+#else
+#include <sys/timeb.h>

 #endif
 
 #endif
 

-  // Make a menubar
-  wxMenu *fileMenu = new wxMenu;
-
-  fileMenu->Append(wxID_EXIT, "E&xit");
-  wxMenuBar *menuBar = new wxMenuBar;
-  menuBar->Append(fileMenu, "&File");
-  frame->SetMenuBar(menuBar);
+#define ID_NEW_WINDOW 10000
+#define ID_DEF_ROTATE_LEFT_KEY 10001
+#define ID_DEF_ROTATE_RIGHT_KEY 10002

 
 

-  frame->m_canvas = new TestGLCanvas(frame, -1, wxPoint(0, 0), wxSize(200, 200));
-
-//  InitGL();
-
-  // Show the frame
-  frame->Show(TRUE);
-  
-  return TRUE;
-}
-
-void MyApp::InitGL(void)
+/*----------------------------------------------------------
+  Control to get a keycode
+  ----------------------------------------------------------*/
+class ScanCodeCtrl : public wxTextCtrl

 {
 {

-    /* 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);
+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()

 
 

-    glEnable(GL_DEPTH_TEST);
-    glEnable(GL_LIGHTING);
-    glEnable(GL_LIGHT0);
+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 );

 }
 
 }
 

-IMPLEMENT_APP(MyApp)
+void ScanCodeCtrl::OnKeyDown( wxKeyEvent& event )
+{ wxString buf;
+  buf.Printf( "0x%04x", event.KeyCode() );
+  SetValue( buf );
+}

 
 

-BEGIN_EVENT_TABLE(MyFrame, wxFrame)
-    EVT_MENU(wxID_EXIT, MyFrame::OnExit)
-END_EVENT_TABLE()
+/*------------------------------------------------------------------
+ Dialog for defining a keypress
+-------------------------------------------------------------------*/

 
 

-// 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)
+class ScanCodeDialog : public wxDialog

 {
 {

-    m_canvas = NULL;
+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) );

 }
 
 }
 

-// Intercept menu commands
-void MyFrame::OnExit(wxCommandEvent& event)
+int ScanCodeDialog::GetValue()

 {
 {

-    Destroy();
+  int code;
+  wxString buf = m_ScanCode->GetValue();
+  sscanf( buf.c_str(), "%i", &code );
+  return( code );

 }
 
 }
 

-bool MyFrame::OnClose(void)
+/*----------------------------------------------------------------------
+  Utility function to get the elapsed time (in msec) since a given point
+  in time (in sec)  (because current version of wxGetElapsedTime doesn´t 
+  works right with glibc-2.1 and linux, at least for me) 
+-----------------------------------------------------------------------*/
+unsigned long wxStopWatch( unsigned long *sec_base )

 {
 {

-    return TRUE;
+  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)
 BEGIN_EVENT_TABLE(TestGLCanvas, wxGLCanvas)

-    EVT_SIZE(TestGLCanvas::OnSize)
-    EVT_PAINT(TestGLCanvas::OnPaint)
-    EVT_ERASE_BACKGROUND(TestGLCanvas::OnEraseBackground)
+  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()
 
 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):
 TestGLCanvas::TestGLCanvas(wxWindow *parent, wxWindowID id,
     const wxPoint& pos, const wxSize& size, long style, const wxString& name):

-  wxGLCanvas(parent, id, pos, size, style, name)
+  wxGLCanvas(parent, NULL, id, pos, size, style, name )

 {
 {

+    m_init = FALSE;
+    m_gllist = 0;
+    m_rleft = WXK_LEFT;
+    m_rright = WXK_RIGHT;

 }
 
 }
 

-TestGLCanvas::~TestGLCanvas(void)
+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;

 }
 
 }
 

-void TestGLCanvas::OnPaint( wxPaintEvent& event )
+TestGLCanvas::~TestGLCanvas()
+{
+}
+
+void TestGLCanvas::Render()

 {
 {

-    // This is a dummy, to avoid an endless succession of paint messages.
-    // OnPaint handlers must always create a wxPaintDC.

     wxPaintDC dc(this);
 
     wxPaintDC dc(this);
 

-    if ( !GetContext() )
-        return;
+#ifndef __WXMOTIF__
+    if (!GetContext()) return;
+#endif

 
     SetCurrent();
 
     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);
 
     /* 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);
     /* draw six faces of a cube */
     glBegin(GL_QUADS);
     glNormal3f( 0.0F, 0.0F, 1.0F);


@@ -161,7 +236,23 @@ void TestGLCanvas::OnPaint( wxPaintEvent& event )
     glVertex3f(-0.5F, 0.5F, 0.5F); glVertex3f(-0.5F, 0.5F,-0.5F);
     glEnd();
 
     glVertex3f(-0.5F, 0.5F, 0.5F); glVertex3f(-0.5F, 0.5F,-0.5F);
     glEnd();
 

-    SwapBuffers();
+    glEndList();
+  }
+  else
+    glCallList( m_gllist );    
+
+  glFlush();
+  SwapBuffers();
+}
+
+void TestGLCanvas::OnEnterWindow( wxMouseEvent& event )
+{
+    SetFocus();
+}
+
+void TestGLCanvas::OnPaint( wxPaintEvent& event )
+{
+    Render();

 }
 
 void TestGLCanvas::OnSize(wxSizeEvent& event)
 }
 
 void TestGLCanvas::OnSize(wxSizeEvent& event)


@@ -169,7 +260,9 @@ void TestGLCanvas::OnSize(wxSizeEvent& event)
     int width, height;
     GetClientSize(& width, & height);
 
     int width, height;
     GetClientSize(& width, & height);
 

+#ifndef __WXMOTIF__

     if (GetContext())
     if (GetContext())

+#endif

     {
         SetCurrent();
         glViewport(0, 0, width, height);
     {
         SetCurrent();
         glViewport(0, 0, width, height);


@@ -178,6 +271,235 @@ void TestGLCanvas::OnSize(wxSizeEvent& event)
 
 void TestGLCanvas::OnEraseBackground(wxEraseEvent& event)
 {
 
 void TestGLCanvas::OnEraseBackground(wxEraseEvent& event)
 {

-    // Do nothing, to avoid flashing.
+  // 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;
+}