#include "scribble.hh"#include <gfc/gtk/box.hh>#include <gfc/gtk/button.hh>#include <gfc/gtk/style.hh>#include <gfc/gdk/color.hh>#include <gfc/gdk/gc.hh>#include <gfc/gdk/pixmap.hh>#include <gfc/gdk/window.hh>// DrawingAreaDrawingArea::DrawingArea(): Gtk::WidgetSignals(this),  pixmap(0){	set_size_request(200, 200);	set_double_buffered(false);	Gdk::EventMaskField flags = get_events();	flags |= (Gdk::LEAVE_NOTIFY_MASK | Gdk::BUTTON_PRESS_MASK | Gdk::POINTER_MOTION_MASK | Gdk::POINTER_MOTION_HINT_MASK);	set_events(flags);}DrawingArea::~DrawingArea(){	if (pixmap)		pixmap->unref();}boolDrawingArea::on_expose_event(const Gdk::EventExpose& event){	// Redraw the screen from the backing pixmap	get_window()->draw_drawable(*(get_style()->fg_gc(get_state())), *pixmap, event.area(), event.area().x(), event.area().y());	return false;}bool DrawingArea::on_configure_event(const Gdk::EventConfigure& event){	// Create a new backing pixmap of the appropriate size	if (pixmap)    	pixmap->unref();	pixmap = new Gdk::Pixmap(*get_window(), get_allocation().width(), get_allocation().height());	pixmap->draw_rectangle(*(get_style()->white_gc()), 0, 0, get_allocation().width(), get_allocation().height());	return true;}bool DrawingArea::on_button_press_event(const Gdk::EventButton& event){	if (event.button() == 1 && pixmap)		draw_brush(event.x(), event.y());	return true;}boolDrawingArea::on_motion_notify_event(const Gdk::EventMotion& event){	int x, y;	Gdk::ModifierTypeField state;		if (event.is_hint())	 	event.window()->get_pointer(&x, &y, &state);	else	{		x = (int)event.x();		y = (int)event.y();		state = event.state();	}	if (state & Gdk::BUTTON1_MASK && pixmap)		draw_brush(x, y);	return true;}voidDrawingArea::draw_brush(double x, double y){	// Draw a rectangle on the screen	Gdk::Rectangle update_rect((int)x - 5, (int)y - 5, 10, 10);	pixmap->draw_rectangle(*(get_style()->black_gc()), update_rect);	queue_draw_area(update_rect);}// ScribbleWindowScribbleWindow::ScribbleWindow(){	set_name("Test Input");	Gtk::VBox *vbox = new Gtk::VBox;	add(*vbox);	vbox->show();	// Create the drawing area	DrawingArea *drawing_area = new DrawingArea;	vbox->pack_start(*drawing_area);	drawing_area->show();	// And a quit button	Gtk::Button *button = new Gtk::Button("Quit");	vbox->pack_start(*button, false, false);	button->sig_clicked().connect(sigc::mem_fun(this, &ScribbleWindow::dispose));	button->show();}ScribbleWindow::~ScribbleWindow(){}int main (int argc, char *argv[]){	using namespace Main;	init(&argc, &argv);	ScribbleWindow window;	window.sig_destroy().connect(sigc::ptr_fun(&GFC::Main::quit));	window.show();	run();	return 0;}