zoomedit: Added RenderArea with OpenGL support.

6 files changed, 108 insertions, 13 deletions

diff --git a/src/Gui/Makefile.am b/src/Gui/Makefile.am
index c3d6837..fad988d 100644
--- a/src/Gui/Makefile.am
+++ b/src/Gui/Makefile.am
@@ -1,4 +1,4 @@
 noinst_LTLIBRARIES = libgui.la
 
-libgui_la_SOURCES  = Window.cpp
+libgui_la_SOURCES  = Window.cpp RenderArea.cpp
 libgui_la_CPPFLAGS = $(glademm_CFLAGS) $(GTKGLEXT_CFLAGS)
\ No newline at end of file
diff --git a/src/Gui/Makefile.in b/src/Gui/Makefile.in
index 117fcae..61b6676 100644
--- a/src/Gui/Makefile.in
+++ b/src/Gui/Makefile.in
@@ -1,8 +1,8 @@
-# Makefile.in generated by automake 1.10 from Makefile.am.
+# Makefile.in generated by automake 1.10.1 from Makefile.am.
 # @configure_input@
 
 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-# 2003, 2004, 2005, 2006  Free Software Foundation, Inc.
+# 2003, 2004, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -43,9 +43,9 @@ CONFIG_HEADER = $(top_builddir)/src/config.h
 CONFIG_CLEAN_FILES =
 LTLIBRARIES = $(noinst_LTLIBRARIES)
 libgui_la_LIBADD =
-am_libgui_la_OBJECTS = libgui_la-Window.lo
+am_libgui_la_OBJECTS = libgui_la-Window.lo libgui_la-RenderArea.lo
 libgui_la_OBJECTS = $(am_libgui_la_OBJECTS)
-DEFAULT_INCLUDES = -I. -I$(top_builddir)/src@am__isrc@
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)/src
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
 CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
@@ -81,6 +81,7 @@ CXXFLAGS = @CXXFLAGS@
 CYGPATH_W = @CYGPATH_W@
 DEFS = @DEFS@
 DEPDIR = @DEPDIR@
+DSYMUTIL = @DSYMUTIL@
 ECHO = @ECHO@
 ECHO_C = @ECHO_C@
 ECHO_N = @ECHO_N@
@@ -106,6 +107,7 @@ LTLIBOBJS = @LTLIBOBJS@
 MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
 MKDIR_P = @MKDIR_P@
+NMEDIT = @NMEDIT@
 OBJEXT = @OBJEXT@
 PACKAGE = @PACKAGE@
 PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
@@ -175,7 +177,7 @@ target_alias = @target_alias@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 noinst_LTLIBRARIES = libgui.la
-libgui_la_SOURCES = Window.cpp
+libgui_la_SOURCES = Window.cpp RenderArea.cpp
 libgui_la_CPPFLAGS = $(glademm_CFLAGS) $(GTKGLEXT_CFLAGS)
 all: all-am
 
@@ -228,6 +230,7 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c
 
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libgui_la-RenderArea.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libgui_la-Window.Plo@am__quote@
 
 .cpp.o:
@@ -258,6 +261,13 @@ libgui_la-Window.lo: Window.cpp
 @AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
 @am__fastdepCXX_FALSE@	$(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libgui_la_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -c -o libgui_la-Window.lo `test -f 'Window.cpp' || echo '$(srcdir)/'`Window.cpp
 
+libgui_la-RenderArea.lo: RenderArea.cpp
+@am__fastdepCXX_TRUE@	$(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libgui_la_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT libgui_la-RenderArea.lo -MD -MP -MF $(DEPDIR)/libgui_la-RenderArea.Tpo -c -o libgui_la-RenderArea.lo `test -f 'RenderArea.cpp' || echo '$(srcdir)/'`RenderArea.cpp
+@am__fastdepCXX_TRUE@	mv -f $(DEPDIR)/libgui_la-RenderArea.Tpo $(DEPDIR)/libgui_la-RenderArea.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	source='RenderArea.cpp' object='libgui_la-RenderArea.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libgui_la_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -c -o libgui_la-RenderArea.lo `test -f 'RenderArea.cpp' || echo '$(srcdir)/'`RenderArea.cpp
+
 mostlyclean-libtool:
 	-rm -f *.lo
 
@@ -269,8 +279,8 @@ ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
 	unique=`for i in $$list; do \
 	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
 	  done | \
-	  $(AWK) '    { files[$$0] = 1; } \
-	       END { for (i in files) print i; }'`; \
+	  $(AWK) '{ files[$$0] = 1; nonemtpy = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
 	mkid -fID $$unique
 tags: TAGS
 
@@ -282,8 +292,8 @@ TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
 	unique=`for i in $$list; do \
 	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
 	  done | \
-	  $(AWK) '    { files[$$0] = 1; } \
-	       END { for (i in files) print i; }'`; \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
 	if test -z "$(ETAGS_ARGS)$$tags$$unique"; then :; else \
 	  test -n "$$unique" || unique=$$empty_fix; \
 	  $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
@@ -293,13 +303,12 @@ ctags: CTAGS
 CTAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
 		$(TAGS_FILES) $(LISP)
 	tags=; \
-	here=`pwd`; \
 	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
 	unique=`for i in $$list; do \
 	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
 	  done | \
-	  $(AWK) '    { files[$$0] = 1; } \
-	       END { for (i in files) print i; }'`; \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
 	test -z "$(CTAGS_ARGS)$$tags$$unique" \
 	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
 	     $$tags $$unique
diff --git a/src/Gui/RenderArea.cpp b/src/Gui/RenderArea.cpp
new file mode 100644
index 0000000..c19c0a5
--- /dev/null
+++ b/src/Gui/RenderArea.cpp
@@ -0,0 +1,53 @@
+#include "RenderArea.h"
+#include <iostream>
+#include <cstdlib>
+#include <GL/gl.h>
+
+namespace ZoomEdit {
+namespace Gui {
+
+GdkGLConfig *RenderArea::glconfig = NULL;
+
+RenderArea::RenderArea(BaseObjectType *cobject, const Glib::RefPtr<Gnome::Glade::Xml> &xml)
+: Gtk::DrawingArea(cobject) {
+  if(!glconfig) {
+    glconfig = gdk_gl_config_new_by_mode((GdkGLConfigMode)(GDK_GL_MODE_RGB | GDK_GL_MODE_DOUBLE));
+    if(!glconfig) glconfig = gdk_gl_config_new_by_mode(GDK_GL_MODE_RGB); // Hmm, can't find double buffered config
+    if(!glconfig) {
+      std::cerr << "*** No appropriate OpenGL-capable visual found." << std::endl;
+      std::exit(1);
+    }
+  }
+  
+  signal_realize().connect(sigc::mem_fun(this, &RenderArea::onRealize));
+  
+  gtk_widget_set_gl_capability(GTK_WIDGET(cobject), glconfig, NULL, TRUE, GDK_GL_RGBA_TYPE);
+}
+
+RenderArea::~RenderArea() {
+}
+
+void RenderArea::onRealize() {
+  GtkWidget *widget = GTK_WIDGET(gobj());
+  GdkGLContext *context = gtk_widget_get_gl_context(widget);
+  GdkGLDrawable *drawable = gtk_widget_get_gl_drawable(widget);
+  
+  if(!gdk_gl_drawable_gl_begin(drawable, context))
+    return;
+  
+  glClearColor(0, 0, 0, 0);
+  
+  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+  glEnable(GL_BLEND);
+  
+  glEnable(GL_LINE_SMOOTH);
+  glEnable(GL_POINT_SMOOTH);
+  
+  glMatrixMode(GL_MODELVIEW);
+  glLoadIdentity();
+  
+  gdk_gl_drawable_gl_end(drawable);
+}
+
+}
+}
diff --git a/src/Gui/RenderArea.h b/src/Gui/RenderArea.h
new file mode 100644
index 0000000..6695e09
--- /dev/null
+++ b/src/Gui/RenderArea.h
@@ -0,0 +1,25 @@
+#ifndef ZOOMEDIT_GUI_RENDERAREA_H_
+#define ZOOMEDIT_GUI_RENDERAREA_H_
+
+#include <gtkmm/drawingarea.h>
+#include <libglademm/xml.h>
+#include <gtk/gtkgl.h>
+
+namespace ZoomEdit {
+namespace Gui {
+
+class RenderArea : public Gtk::DrawingArea {
+  public:
+    RenderArea(BaseObjectType *cobject, const Glib::RefPtr<Gnome::Glade::Xml> &xml);
+    virtual ~RenderArea();
+  
+  private:
+    static GdkGLConfig *glconfig;
+    
+    void onRealize();
+};
+
+}
+}
+
+#endif /*ZOOMEDIT_GUI_RENDERAREA_H_*/
diff --git a/src/Gui/Window.cpp b/src/Gui/Window.cpp
index a90a460..0ec933d 100644
--- a/src/Gui/Window.cpp
+++ b/src/Gui/Window.cpp
@@ -6,9 +6,13 @@ namespace Gui {
 Window::Window(BaseObjectType *cobject, const Glib::RefPtr<Gnome::Glade::Xml> &xml)
 : Gtk::Window(cobject) {
   xml->connect_clicked("MenuItemQuit", sigc::mem_fun(this, &Window::hide));
+  
+  xml->get_widget_derived("RenderArea", renderArea);
 }
 
 Window::~Window() {
+  if(renderArea)
+    delete renderArea;
 }
 
 }
diff --git a/src/Gui/Window.h b/src/Gui/Window.h
index f940c1d..89e9f49 100644
--- a/src/Gui/Window.h
+++ b/src/Gui/Window.h
@@ -3,11 +3,15 @@
 
 #include <gtkmm/window.h>
 #include <libglademm/xml.h>
+#include "RenderArea.h"
 
 namespace ZoomEdit {
 namespace Gui {
 
 class Window : public Gtk::Window {
+  private:
+    RenderArea *renderArea;
+    
   public:
     Window(BaseObjectType *cobject, const Glib::RefPtr<Gnome::Glade::Xml> &xml);
     virtual ~Window();