initial commit

git-svn-id: svn://anubis/misc/sierpinski-gtk@246 bd8a9e45-a331-0410-811e-c64571078777

Makefile

@@ -0,0 +1,40 @@
+
+SHELL  := bash
+TARGET := sierpinski-gtk
+OBJS   := $(patsubst %.cc,%.o,$(wildcard *.cc))
+DEPS   := $(OBJS:.o=.dep)
+
+export GTKMM_VERSION := 2.4
+export GTKGLEXTMM_VERSION := 1.2
+
+ifdef WIN32
+export CPPFLAGS += -I"$(shell cd)"
+else
+export CPPFLAGS += -I"$(shell pwd)"
+endif
+export CXXFLAGS := -Wall -O2 \
+	               `pkg-config --cflags gtkmm-$(GTKMM_VERSION)` \
+	               `pkg-config --cflags gtkglextmm-$(GTKGLEXTMM_VERSION)`
+export LDFLAGS := `pkg-config --libs gtkmm-$(GTKMM_VERSION)` \
+	              `pkg-config --libs gtkglextmm-$(GTKGLEXTMM_VERSION)`
+
+all: $(TARGET)
+
+$(TARGET): $(OBJS)
+	$(CXX) -o $@ $^ $(CXXFLAGS) $(LDFLAGS)
+
+%.o: %.cc
+	$(CXX) -c -o $@ $(CPPFLAGS) $(CXXFLAGS) $<
+
+# Make dependency files
+%.dep: %.cc
+	@set -e; rm -f $@; \
+	  $(CXX) -MM $(CPPFLAGS) $< > $@.$$$$; \
+	  sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
+	  rm -f $@.$$$$
+
+clean:
+	-$(RM) -f *.o *.dep $(TARGET)
+
+# Include dependency files
+-include $(DEPS)

SierpinskiDA.cc

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+
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+#include <gdkmm/cursor.h>
+
+#include "SierpinskiDA.h"
+
+SierpinskiDA::SierpinskiDA(const Glib::RefPtr<const Gdk::GL::Config> & config)
+    : Gtk::GL::DrawingArea(config)
+{
+    set_gl_capability(config);
+    set_events(Gdk::POINTER_MOTION_MASK
+             | Gdk::BUTTON_PRESS_MASK
+             | Gdk::BUTTON_RELEASE_MASK
+             | Gdk::SCROLL_MASK);
+}
+
+bool SierpinskiDA::draw()
+{
+    Glib::RefPtr<Gdk::GL::Window> glwindow = get_gl_window();
+    if (!glwindow->gl_begin(get_gl_context()))
+        return false;
+
+    glClearColor(0.1, 0.6, 1.0, 1.0);
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+    gluLookAt(0, -2, 0,
+              0, 0, 0,
+              0, 0, 1);
+
+    if (glwindow->is_double_buffered())
+        glwindow->swap_buffers();
+    else
+        glFlush();
+
+    return true;
+}
+
+bool SierpinskiDA::on_motion_notify_event(GdkEventMotion * event)
+{
+    get_pointer(m_x, m_y);
+    return true;
+}
+
+bool SierpinskiDA::on_button_press_event(GdkEventButton * event)
+{
+    return false;
+}
+
+bool SierpinskiDA::on_button_release_event(GdkEventButton * event)
+{
+    return false;
+}
+
+bool SierpinskiDA::on_scroll_event(GdkEventScroll * event)
+{
+    return false;
+}
+
+void SierpinskiDA::on_realize()
+{
+    Gtk::GL::DrawingArea::on_realize();
+
+    Glib::RefPtr<Gdk::GL::Window> glwindow = get_gl_window();
+    glwindow->get_window()->set_cursor(Gdk::Cursor(Gdk::CROSSHAIR));
+
+    if (!glwindow->gl_begin(get_gl_context()))
+        return;
+
+    glViewport(0, 0, get_width(), get_height());
+
+    glwindow->gl_end();
+}
+
+/*
+ * called on widget resizes
+ */
+bool SierpinskiDA::on_configure_event(GdkEventConfigure * event)
+{
+    Glib::RefPtr<Gdk::GL::Window> glwindow = get_gl_window();
+
+    if (!glwindow->gl_begin(get_gl_context()))
+        return false;
+
+    glViewport(0, 0, get_width(), get_height());
+
+    glwindow->gl_end();
+
+    return true;
+}
+
+bool SierpinskiDA::on_expose_event(GdkEventExpose * event)
+{
+    return draw();
+}

SierpinskiDA.h

@@ -0,0 +1,28 @@
+
+#ifndef GLWIDGET_H
+#define GLWIDGET_H
+
+#include <gtkmm/gl/drawingarea.h>
+
+class SierpinskiDA : public Gtk::GL::DrawingArea
+{
+    public:
+        SierpinskiDA(const Glib::RefPtr<const Gdk::GL::Config> & config);
+
+    protected:
+        int m_x, m_y;
+
+        virtual bool draw();
+        virtual void on_realize();
+        virtual bool on_configure_event(GdkEventConfigure * event);
+        virtual bool on_expose_event(GdkEventExpose * event);
+
+        /* signal handlers */
+        virtual bool on_motion_notify_event(GdkEventMotion * event);
+        virtual bool on_button_press_event(GdkEventButton * event);
+        virtual bool on_button_release_event(GdkEventButton * event);
+        virtual bool on_scroll_event(GdkEventScroll * event);
+};
+
+#endif
+

sierpinski-gtk.cc

@@ -0,0 +1,46 @@
+
+#include <iostream>
+
+#include <gtkmm/main.h>
+#include <gtkmm/window.h>
+#include <gtkmm/box.h>
+#include <gtkglmm.h>
+
+#include "SierpinskiDA.h"
+
+int main(int argc, char * argv[])
+{
+    Gtk::Main gtkmain(argc, argv);
+    Gtk::GL::init(argc, argv);
+
+    Glib::RefPtr<Gdk::GL::Config> glconfig;
+    glconfig = Gdk::GL::Config::create(Gdk::GL::MODE_RGB |
+                                       Gdk::GL::MODE_DEPTH |
+                                       Gdk::GL::MODE_DOUBLE);
+
+    if (!glconfig)
+    {
+        std::cerr << "Could not create double-buffered GL visual"
+                  << "Trying single-buffered visual." << std::endl;
+
+        glconfig = Gdk::GL::Config::create(Gdk::GL::MODE_RGB |
+                                           Gdk::GL::MODE_DEPTH);
+
+        if (!glconfig)
+        {
+            std::cerr << "Cannot create OpenGL context!" << std::endl;
+            return -1;
+        }
+    }
+
+    Gtk::Window mw;
+    mw.set_default_size(400, 500);
+
+    Gtk::VBox vbox;
+    SierpinskiDA da(glconfig);
+    vbox.pack_start(da);
+    mw.add(vbox);
+    mw.show_all();
+
+    Gtk::Main::run(mw);
+}