bdc95f5766
Add wxGLAttribsBase, wxGLAttributes and wxGLContextAttrs replacing the old untyped "int attributes[]". Don't use global object for creating OpenGL > 3.0 contexts. Closes #16909.
332 lines
9.9 KiB
C++
332 lines
9.9 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/gtk1/glcanvas.cpp
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// Purpose: wxGLCanvas, for using OpenGL/Mesa with wxWidgets and GTK
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// Author: Robert Roebling
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// Modified by:
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// Created: 17/08/98
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// Copyright: (c) Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#if wxUSE_GLCANVAS
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#include "wx/glcanvas.h"
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#ifndef WX_PRECOMP
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#include "wx/app.h"
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#include "wx/frame.h"
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#include "wx/colour.h"
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#include "wx/module.h"
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#endif // WX_PRECOMP
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extern "C"
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{
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#include "gtk/gtk.h"
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#include "gdk/gdk.h"
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#include "gdk/gdkx.h"
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}
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#include "wx/gtk1/win_gtk.h"
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#include "wx/gtk1/private.h"
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//-----------------------------------------------------------------------------
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// idle system
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//-----------------------------------------------------------------------------
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extern void wxapp_install_idle_handler();
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extern bool g_isIdle;
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#if WXWIN_COMPATIBILITY_2_8
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//-----------------------------------------------------------------------------
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// "realize" from m_wxwindow: used to create m_glContext implicitly
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//-----------------------------------------------------------------------------
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extern "C" {
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static gint
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gtk_glwindow_realized_callback( GtkWidget *WXUNUSED(widget), wxGLCanvas *win )
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{
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win->GTKInitImplicitContext();
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return FALSE;
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}
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}
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#endif // WXWIN_COMPATIBILITY_2_8
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//-----------------------------------------------------------------------------
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// "map" from m_wxwindow
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//-----------------------------------------------------------------------------
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extern "C" {
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static gint
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gtk_glwindow_map_callback( GtkWidget * WXUNUSED(widget), wxGLCanvas *win )
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{
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wxPaintEvent event( win->GetId() );
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event.SetEventObject( win );
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win->HandleWindowEvent( event );
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win->GetUpdateRegion().Clear();
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return FALSE;
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}
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}
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//-----------------------------------------------------------------------------
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// "expose_event" of m_wxwindow
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//-----------------------------------------------------------------------------
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extern "C" {
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static void
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gtk_glwindow_expose_callback( GtkWidget *WXUNUSED(widget), GdkEventExpose *gdk_event, wxGLCanvas *win )
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{
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if (g_isIdle)
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wxapp_install_idle_handler();
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win->GetUpdateRegion().Union( gdk_event->area.x,
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gdk_event->area.y,
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gdk_event->area.width,
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gdk_event->area.height );
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}
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}
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//-----------------------------------------------------------------------------
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// "draw" of m_wxwindow
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//-----------------------------------------------------------------------------
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extern "C" {
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static void
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gtk_glwindow_draw_callback( GtkWidget *WXUNUSED(widget), GdkRectangle *rect, wxGLCanvas *win )
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{
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if (g_isIdle)
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wxapp_install_idle_handler();
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win->GetUpdateRegion().Union( rect->x, rect->y,
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rect->width, rect->height );
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}
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}
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//-----------------------------------------------------------------------------
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// "size_allocate" of m_wxwindow
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//-----------------------------------------------------------------------------
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extern "C" {
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static void
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gtk_glcanvas_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxGLCanvas *win )
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{
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if (g_isIdle)
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wxapp_install_idle_handler();
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if (!win->m_hasVMT)
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return;
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wxSizeEvent event( wxSize(win->m_width,win->m_height), win->GetId() );
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event.SetEventObject( win );
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win->HandleWindowEvent( event );
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}
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}
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//---------------------------------------------------------------------------
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// wxGlCanvas
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//---------------------------------------------------------------------------
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wxIMPLEMENT_CLASS(wxGLCanvas, wxWindow);
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wxGLCanvas::wxGLCanvas(wxWindow *parent,
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const wxGLAttributes& dispAttrs,
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wxWindowID id,
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const wxPoint& pos,
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const wxSize& size,
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long style,
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const wxString& name,
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const wxPalette& palette)
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#if WXWIN_COMPATIBILITY_2_8
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: m_createImplicitContext(false)
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#endif
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{
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Create(parent, dispAttrs, id, pos, size, style, name, palette);
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}
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wxGLCanvas::wxGLCanvas(wxWindow *parent,
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wxWindowID id,
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const int *attribList,
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const wxPoint& pos,
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const wxSize& size,
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long style,
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const wxString& name,
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const wxPalette& palette)
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#if WXWIN_COMPATIBILITY_2_8
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: m_createImplicitContext(false)
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#endif
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{
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Create(parent, id, pos, size, style, name, attribList, palette);
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}
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#if WXWIN_COMPATIBILITY_2_8
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wxGLCanvas::wxGLCanvas(wxWindow *parent,
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wxWindowID id,
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const wxPoint& pos,
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const wxSize& size,
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long style,
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const wxString& name,
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const int *attribList,
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const wxPalette& palette)
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: m_createImplicitContext(true)
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{
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Create(parent, id, pos, size, style, name, attribList, palette);
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}
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wxGLCanvas::wxGLCanvas(wxWindow *parent,
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const wxGLContext *shared,
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wxWindowID id,
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const wxPoint& pos,
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const wxSize& size,
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long style,
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const wxString& name,
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const int *attribList,
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const wxPalette& palette)
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: m_createImplicitContext(true)
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{
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m_sharedContext = const_cast<wxGLContext *>(shared);
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Create(parent, id, pos, size, style, name, attribList, palette);
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}
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wxGLCanvas::wxGLCanvas(wxWindow *parent,
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const wxGLCanvas *shared,
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wxWindowID id,
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const wxPoint& pos, const wxSize& size,
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long style, const wxString& name,
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const int *attribList,
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const wxPalette& palette )
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: m_createImplicitContext(true)
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{
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m_sharedContextOf = const_cast<wxGLCanvas *>(shared);
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Create(parent, id, pos, size, style, name, attribList, palette);
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}
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#endif // WXWIN_COMPATIBILITY_2_8
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bool wxGLCanvas::Create(wxWindow *parent,
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wxWindowID id,
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const wxPoint& pos,
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const wxSize& size,
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long style,
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const wxString& name,
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const int *attribList,
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const wxPalette& palette)
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{
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// Separate 'GLXFBConfig/XVisual' attributes.
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// Also store context attributes for wxGLContext ctor
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wxGLAttributes dispAttrs;
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if ( ! ParseAttribList(attribList, dispAttrs, &m_GLCTXAttrs) )
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return false;
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return Create(parent, dispAttrs, id, pos, size, style, name, palette);
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}
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bool wxGLCanvas::Create(wxWindow *parent,
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const wxGLAttributes& dispAttrs,
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wxWindowID id,
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const wxPoint& pos,
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const wxSize& size,
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long style,
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const wxString& name,
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const wxPalette& palette)
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{
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m_noExpose = true;
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m_nativeSizeEvent = true;
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if ( !InitVisual(dispAttrs) )
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return false;
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GdkVisual *visual = gdkx_visual_get( GetXVisualInfo()->visualid );
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GdkColormap *colormap = gdk_colormap_new( visual, TRUE );
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gtk_widget_push_colormap( colormap );
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gtk_widget_push_visual( visual );
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wxWindow::Create( parent, id, pos, size, style, name );
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m_glWidget = m_wxwindow;
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gtk_pizza_set_clear( GTK_PIZZA(m_wxwindow), FALSE );
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#if WXWIN_COMPATIBILITY_2_8
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gtk_signal_connect( GTK_OBJECT(m_wxwindow), "realize",
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GTK_SIGNAL_FUNC(gtk_glwindow_realized_callback), (gpointer) this);
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#endif // WXWIN_COMPATIBILITY_2_8
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gtk_signal_connect( GTK_OBJECT(m_wxwindow), "map",
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GTK_SIGNAL_FUNC(gtk_glwindow_map_callback), (gpointer) this);
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gtk_signal_connect( GTK_OBJECT(m_wxwindow), "expose_event",
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GTK_SIGNAL_FUNC(gtk_glwindow_expose_callback), (gpointer) this);
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gtk_signal_connect( GTK_OBJECT(m_wxwindow), "draw",
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GTK_SIGNAL_FUNC(gtk_glwindow_draw_callback), (gpointer) this);
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gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
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GTK_SIGNAL_FUNC(gtk_glcanvas_size_callback), (gpointer) this);
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gtk_widget_pop_visual();
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gtk_widget_pop_colormap();
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#if WXWIN_COMPATIBILITY_2_8
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// if our parent window is already visible, we had been realized before we
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// connected to the "realize" signal and hence our m_glContext hasn't been
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// initialized yet and we have to do it now
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if (GTK_WIDGET_REALIZED(m_wxwindow))
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gtk_glwindow_realized_callback( m_wxwindow, this );
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#endif // WXWIN_COMPATIBILITY_2_8
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if (GTK_WIDGET_MAPPED(m_wxwindow))
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gtk_glwindow_map_callback( m_wxwindow, this );
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return true;
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}
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Window wxGLCanvas::GetXWindow() const
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{
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GdkWindow *window = GTK_PIZZA(m_wxwindow)->bin_window;
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return window ? GDK_WINDOW_XWINDOW(window) : 0;
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}
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void wxGLCanvas::OnInternalIdle()
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{
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if (!m_updateRegion.IsEmpty())
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{
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wxPaintEvent event( GetId() );
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event.SetEventObject( this );
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HandleWindowEvent( event );
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GetUpdateRegion().Clear();
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}
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wxWindow::OnInternalIdle();
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}
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#if WXWIN_COMPATIBILITY_2_8
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void wxGLCanvas::GTKInitImplicitContext()
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{
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if ( !m_glContext && m_createImplicitContext )
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{
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wxGLContext *share = m_sharedContext;
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if ( !share && m_sharedContextOf )
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share = m_sharedContextOf->m_glContext;
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m_glContext = new wxGLContext(this, share);
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}
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}
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#endif // WXWIN_COMPATIBILITY_2_8
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#endif // wxUSE_GLCANVAS
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