- added test-cairo_widget

git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@906 3ecf2c5c-341e-0410-92b4-d18e462d057c
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paolo 2006-08-18 19:49:41 +00:00
parent d3704721d9
commit 7d6b210b90
1 changed files with 244 additions and 0 deletions

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// src/simulation_widget.hh - Copyright 2005, 2006, University
// of Padova, dept. of Pure and Applied
// Mathematics
//
// This file is part of SGPEMv2.
//
// This is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// SGPEMv2 is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with SGPEMv2; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#include "config.h"
#include "cairo_widget.hh"
#include "cairo_elements.hh"
// #include "backend/string_utils.hh"
#include "gettext.h"
#include <glibmm/ustring.h>
#include <gtkmm/box.h>
#include <gtkmm/button.h>
#include <gtkmm/buttonbox.h>
#include <gtkmm/fixed.h>
#include <gtkmm/main.h>
#include <gtkmm/window.h>
#include <cassert>
#include <iostream>
#include <sstream>
#include <iostream>
// ------------------------------------------------------
//
// TestWidget class
//
// ------------------------------------------------------
namespace sgpem
{
class TestWidget : public CairoWidget
{
public:
TestWidget();
virtual ~TestWidget();
protected:
virtual bool on_button_press_event(GdkEventButton* event);
void draw_widget(cairo_t* ctx);
void change_scaling_mode();
virtual void calc_drawing_size(size_t& width, size_t& height) const;
// void calc_size(const History& history, size_t& width, size_t& height) const;
private:
int _desired_w;
int _desired_h;
};
}
using namespace sgpem;
TestWidget::TestWidget()
: Glib::ObjectBase("sgpem_TestWidget"), CairoWidget(),
_desired_w(200), _desired_h(300)
{
}
TestWidget::~TestWidget()
{
}
bool
TestWidget::on_button_press_event(GdkEventButton* event)
{
std::cout << " on_button_press_event " << std::endl;
change_scaling_mode();
// Not here. Yet.
return true;
}
void
TestWidget::draw_widget(cairo_t* ctx)
{
// show line
cairo_set_source_rgb(ctx, 0, 0, 0);
cairo_move_to(ctx, 0, 0);
cairo_line_to(ctx, _desired_w, _desired_w);
cairo_stroke(ctx);
// NOTE: just to try
CairoElements ce(ctx);
Rectangle area = { 10, 10, _desired_w-10, _desired_h/2 };
ce.draw_container(area);
Color red = { 1, 0, 0 };
Point center1 = { _desired_w/4, _desired_h/4*3 };
ce.draw_3dsphere(center1, _desired_w/10, red);
Color yellow = { 1, 1, 0 };
Point center2 = { _desired_w/4*2, _desired_h/4*3 };
ce.draw_3dsphere(center2, _desired_w/10, yellow);
Color green = { 0, 1, 0 };
Point center3 = { _desired_w/4*3, _desired_h/4*3 };
ce.draw_3dsphere(center3, _desired_w/10, green);
// show text
Glib::ustring msg;
switch(get_scaling_mode())
{
case CairoWidget::scaling_none:
msg = "scaling_none = without any scaling";
break;
case CairoWidget::scaling_to_w:
msg = "scaling_to_w = uses width to calculate scale factor";
break;
case CairoWidget::scaling_to_h:
msg = "scaling_to_h = uses height to calculate scale factor";
break;
case CairoWidget::scaling_min:
msg = "scaling_min = uses minimum scale factor from width, height";
break;
case CairoWidget::scaling_max:
msg = "scaling_max = uses maximum scale factor from width, height";
break;
case CairoWidget::scaling_all:
msg = "scaling_all = scale to stretch into client area";
break;
}
cairo_move_to(ctx, 10, 10);
cairo_show_text(ctx,msg.c_str());
msg = "clic to change mode...";
cairo_move_to(ctx, 10, 30);
cairo_show_text(ctx,msg.c_str());
}
void
TestWidget::calc_drawing_size(size_t& width, size_t& height) const
{
// FIXME: write me
// some magic here!
width = _desired_w;
height = _desired_h;
}
void
TestWidget::change_scaling_mode()
{
std::cout << " change_scaling_mode " << std::endl;
scaling_mode scaling = get_scaling_mode();
switch(scaling)
{
case scaling_none:
set_scaling_mode(scaling_to_w);
break;
case scaling_to_w:
case scaling_to_h:
case scaling_min:
case scaling_max:
set_scaling_mode((scaling_mode)(scaling << 1));
break;
case scaling_all:
set_scaling_mode(scaling_none);
break;
}
redraw();
}
// ------------------------------------------------------
//
// MainWindow class
//
// ------------------------------------------------------
class MainWindow : public Gtk::Window
{
public:
MainWindow();
virtual ~MainWindow();
protected:
TestWidget _test_widget;
};
MainWindow::MainWindow()
{
// This just sets the title of our new window.
set_title("Cairo Widget Test: \"Do you like semaphores?\"");
add(_test_widget);
_test_widget.show();
}
MainWindow::~MainWindow()
{
}
// ------------------------------------------------------
//
// main()
//
// ------------------------------------------------------
int
main(int argc, char** argv)
{
int ret = 0;
Gtk::Main kit(argc, argv);
// Gtk::Window win;
MainWindow win;
win.set_border_width(10);
win.resize (200, 200);
Gtk::Main::run(win);
return ret;
}