+++ /dev/null
-/////////////////////////////////////////////////////////////////////////////
-// Name: glcanvas.cpp
-// Purpose: wxGLCanvas, for using OpenGL/Mesa with wxWindows and GTK
-// Author: Robert Roebling
-// Modified by:
-// Created: 17/08/98
-// RCS-ID: $Id$
-// Copyright: (c) Robert Roebling
-// Licence: wxWindows licence
-/////////////////////////////////////////////////////////////////////////////
-
-#ifdef __GNUG__
-#pragma implementation "glcanvas.h"
-#endif
-
-#include "glcanvas.h"
-
-#include "wx/frame.h"
-#include "wx/colour.h"
-#include "wx/module.h"
-#include "wx/app.h"
-
-extern "C" {
-#include "gtk/gtk.h"
-#include "gdk/gdk.h"
-#include "gdk/gdkx.h"
-}
-
-#include "wx/gtk/win_gtk.h"
-
-//---------------------------------------------------------------------------
-// global data
-//---------------------------------------------------------------------------
-
-XVisualInfo *g_vi = (XVisualInfo*) NULL;
-
-//---------------------------------------------------------------------------
-// wxGLContext
-//---------------------------------------------------------------------------
-
-IMPLEMENT_CLASS(wxGLContext,wxObject)
-
-wxGLContext::wxGLContext( bool WXUNUSED(isRGB), wxWindow *win, const wxPalette& WXUNUSED(palette) )
-{
- m_window = win;
- m_widget = ((wxGLCanvas*)win)->m_glWidget;
-
- wxCHECK_RET( g_vi, "invalid visual for OpenGl" );
-
- m_glContext = glXCreateContext( GDK_DISPLAY(), g_vi, None, GL_TRUE );
-
- wxCHECK_RET( m_glContext, "Couldn't create OpenGl context" );
-}
-
-wxGLContext::~wxGLContext()
-{
- if (!m_glContext) return;
-
- if (m_glContext == glXGetCurrentContext())
- {
- glXMakeCurrent( GDK_DISPLAY(), None, NULL);
- }
-
- glXDestroyContext( GDK_DISPLAY(), m_glContext );
-}
-
-void wxGLContext::SwapBuffers()
-{
- if (m_glContext)
- {
- glXSwapBuffers( GDK_DISPLAY(), GDK_WINDOW_XWINDOW( m_widget->window ) );
- }
-}
-
-void wxGLContext::SetCurrent()
-{
- if (m_glContext)
- {
- glXMakeCurrent( GDK_DISPLAY(), GDK_WINDOW_XWINDOW(m_widget->window), m_glContext );
- }
-}
-
-void wxGLContext::SetColour(const char *colour)
-{
- float r = 0.0;
- float g = 0.0;
- float b = 0.0;
- wxColour *col = wxTheColourDatabase->FindColour(colour);
- if (col)
- {
- r = (float)(col->Red()/256.0);
- g = (float)(col->Green()/256.0);
- b = (float)(col->Blue()/256.0);
- glColor3f( r, g, b);
- }
-}
-
-void wxGLContext::SetupPixelFormat()
-{
-}
-
-void wxGLContext::SetupPalette( const wxPalette& WXUNUSED(palette) )
-{
-}
-
-wxPalette wxGLContext::CreateDefaultPalette()
-{
- return wxNullPalette;
-}
-
-//---------------------------------------------------------------------------
-// wxGlCanvas
-//---------------------------------------------------------------------------
-
-IMPLEMENT_CLASS(wxGLCanvas, wxScrolledWindow)
-
-BEGIN_EVENT_TABLE(wxGLCanvas, wxScrolledWindow)
- EVT_SIZE(wxGLCanvas::OnSize)
-END_EVENT_TABLE()
-
-wxGLCanvas::wxGLCanvas( wxWindow *parent, wxWindowID id,
- const wxPoint& pos, const wxSize& size,
- long style, const wxString& name,
- int *attribList,
- const wxPalette& palette )
-{
- Create( parent, id, pos, size, style, name, attribList, palette );
-}
-
-bool wxGLCanvas::Create( wxWindow *parent, wxWindowID id,
- const wxPoint& pos, const wxSize& size,
- long style, const wxString& name,
- int *attribList,
- const wxPalette& palette )
-{
- if (!attribList)
- {
- int data[] = { GLX_RGBA,
- GLX_DOUBLEBUFFER,
- GLX_DEPTH_SIZE, 1,
- None };
- attribList = (int*) data;
- }
-
- Display *dpy = GDK_DISPLAY();
-
- g_vi = glXChooseVisual( dpy, DefaultScreen(dpy), attribList );
-
- GdkVisual *visual = gdkx_visual_get( g_vi->visualid );
- GdkColormap *colormap = gdk_colormap_new( gdkx_visual_get(g_vi->visualid), TRUE );
-
- gtk_widget_push_colormap( colormap );
- gtk_widget_push_visual( visual );
-
- m_glWidget = gtk_drawing_area_new();
- gtk_widget_set_events( m_glWidget,
- GDK_EXPOSURE_MASK |
- GDK_POINTER_MOTION_HINT_MASK |
- GDK_POINTER_MOTION_MASK |
- GDK_BUTTON_MOTION_MASK |
- GDK_BUTTON1_MOTION_MASK |
- GDK_BUTTON2_MOTION_MASK |
- GDK_BUTTON3_MOTION_MASK |
- GDK_BUTTON_PRESS_MASK |
- GDK_BUTTON_RELEASE_MASK |
- GDK_KEY_PRESS_MASK |
- GDK_KEY_RELEASE_MASK |
- GDK_ENTER_NOTIFY_MASK |
- GDK_LEAVE_NOTIFY_MASK );
-
- gtk_widget_pop_visual();
- gtk_widget_pop_colormap();
-
- wxScrolledWindow::Create( parent, id, pos, size, style, name );
-
- gtk_myfixed_put( GTK_MYFIXED(m_wxwindow), m_glWidget, 0, 0 );
-
- gtk_widget_show( m_glWidget );
-
- m_glContext = new wxGLContext( TRUE, this, palette );
-
- XFree( g_vi );
- g_vi = (XVisualInfo*) NULL;
-
- return TRUE;
-}
-
-wxGLCanvas::~wxGLCanvas()
-{
- if (m_glContext) delete m_glContext;
-}
-
-void wxGLCanvas::SwapBuffers()
-{
- if (m_glContext) m_glContext->SwapBuffers();
-}
-
-void wxGLCanvas::OnSize(wxSizeEvent& WXUNUSED(event))
-{
- int width, height;
- GetClientSize( &width, &height );
- if (m_glContext && GTK_WIDGET_REALIZED(m_glWidget) )
- {
- SetCurrent();
-
- glViewport(0, 0, (GLint)width, (GLint)height );
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 15.0 );
- glMatrixMode(GL_MODELVIEW);
- }
-}
-
-void wxGLCanvas::SetCurrent()
-{
- if (m_glContext) m_glContext->SetCurrent();
-}
-
-void wxGLCanvas::SetColour( const char *colour )
-{
- if (m_glContext) m_glContext->SetColour( colour );
-}
-
-void wxGLCanvas::SetSize( int x, int y, int width, int height, int sizeFlags )
-{
- if (m_resizing) return; // I don't like recursions
- m_resizing = TRUE;
-
- if (m_parent->m_wxwindow == NULL) // i.e. wxNotebook
- {
- // don't set the size for children of wxNotebook, just take the values.
- m_x = x;
- m_y = y;
- m_width = width;
- m_height = height;
- }
- else
- {
- int old_width = m_width;
- int old_height = m_height;
-
- if ((sizeFlags & wxSIZE_USE_EXISTING) == wxSIZE_USE_EXISTING)
- {
- if (x != -1) m_x = x;
- if (y != -1) m_y = y;
- if (width != -1) m_width = width;
- if (height != -1) m_height = height;
- }
- else
- {
- m_x = x;
- m_y = y;
- m_width = width;
- m_height = height;
- }
-
- if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
- {
- if (width == -1) m_width = 80;
- }
-
- if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT)
- {
- if (height == -1) m_height = 26;
- }
-
- if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
- if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
- if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_maxWidth;
- if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_maxHeight;
-
- wxPoint pt( m_parent->GetClientAreaOrigin() );
- gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), m_widget, m_x+pt.x, m_y+pt.y );
-
- if ((old_width != m_width) || (old_height != m_height))
- {
- gtk_widget_set_usize( m_widget, m_width, m_height );
-
- gtk_drawing_area_size( GTK_DRAWING_AREA(m_glWidget), m_width, m_height );
-
- GtkAllocation allo;
- allo.x = 0;
- allo.y = 0;
- allo.width = m_width;
- allo.height = m_height;
- gtk_widget_size_allocate( m_glWidget, &allo );
- }
- }
-
- m_sizeSet = TRUE;
-
- wxSizeEvent event( wxSize(m_width,m_height), GetId() );
- event.SetEventObject( this );
- GetEventHandler()->ProcessEvent( event );
-
- m_resizing = FALSE;
-}
-
-void wxGLCanvas::SetSize( int width, int height )
-{
- SetSize( -1, -1, width, height, wxSIZE_USE_EXISTING );
-}
-
-GtkWidget *wxGLCanvas::GetConnectWidget()
-{
- return m_glWidget;
-}
-
-bool wxGLCanvas::IsOwnGtkWindow( GdkWindow *window )
-{
- return (window == m_glWidget->window);
-}
projects / wxWidgets.git / blobdiff