- added test-cairo_widget
git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@906 3ecf2c5c-341e-0410-92b4-d18e462d057c
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// src/simulation_widget.hh - Copyright 2005, 2006, University
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// of Padova, dept. of Pure and Applied
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// Mathematics
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//
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// This file is part of SGPEMv2.
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//
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// This is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// SGPEMv2 is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with SGPEMv2; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include "config.h"
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#include "cairo_widget.hh"
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#include "cairo_elements.hh"
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// #include "backend/string_utils.hh"
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#include "gettext.h"
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#include <glibmm/ustring.h>
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#include <gtkmm/box.h>
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#include <gtkmm/button.h>
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#include <gtkmm/buttonbox.h>
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#include <gtkmm/fixed.h>
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#include <gtkmm/main.h>
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#include <gtkmm/window.h>
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#include <cassert>
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#include <iostream>
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#include <sstream>
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#include <iostream>
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// ------------------------------------------------------
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//
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// TestWidget class
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//
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// ------------------------------------------------------
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namespace sgpem
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{
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class TestWidget : public CairoWidget
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{
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public:
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TestWidget();
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virtual ~TestWidget();
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protected:
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virtual bool on_button_press_event(GdkEventButton* event);
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void draw_widget(cairo_t* ctx);
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void change_scaling_mode();
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virtual void calc_drawing_size(size_t& width, size_t& height) const;
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// void calc_size(const History& history, size_t& width, size_t& height) const;
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private:
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int _desired_w;
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int _desired_h;
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};
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}
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using namespace sgpem;
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TestWidget::TestWidget()
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: Glib::ObjectBase("sgpem_TestWidget"), CairoWidget(),
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_desired_w(200), _desired_h(300)
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{
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}
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TestWidget::~TestWidget()
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{
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}
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bool
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TestWidget::on_button_press_event(GdkEventButton* event)
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{
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std::cout << " on_button_press_event " << std::endl;
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change_scaling_mode();
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// Not here. Yet.
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return true;
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}
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void
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TestWidget::draw_widget(cairo_t* ctx)
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{
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// show line
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cairo_set_source_rgb(ctx, 0, 0, 0);
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cairo_move_to(ctx, 0, 0);
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cairo_line_to(ctx, _desired_w, _desired_w);
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cairo_stroke(ctx);
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// NOTE: just to try
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CairoElements ce(ctx);
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Rectangle area = { 10, 10, _desired_w-10, _desired_h/2 };
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ce.draw_container(area);
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Color red = { 1, 0, 0 };
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Point center1 = { _desired_w/4, _desired_h/4*3 };
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ce.draw_3dsphere(center1, _desired_w/10, red);
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Color yellow = { 1, 1, 0 };
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Point center2 = { _desired_w/4*2, _desired_h/4*3 };
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ce.draw_3dsphere(center2, _desired_w/10, yellow);
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Color green = { 0, 1, 0 };
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Point center3 = { _desired_w/4*3, _desired_h/4*3 };
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ce.draw_3dsphere(center3, _desired_w/10, green);
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// show text
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Glib::ustring msg;
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switch(get_scaling_mode())
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{
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case CairoWidget::scaling_none:
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msg = "scaling_none = without any scaling";
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break;
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case CairoWidget::scaling_to_w:
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msg = "scaling_to_w = uses width to calculate scale factor";
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break;
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case CairoWidget::scaling_to_h:
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msg = "scaling_to_h = uses height to calculate scale factor";
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break;
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case CairoWidget::scaling_min:
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msg = "scaling_min = uses minimum scale factor from width, height";
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break;
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case CairoWidget::scaling_max:
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msg = "scaling_max = uses maximum scale factor from width, height";
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break;
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case CairoWidget::scaling_all:
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msg = "scaling_all = scale to stretch into client area";
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break;
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}
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cairo_move_to(ctx, 10, 10);
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cairo_show_text(ctx,msg.c_str());
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msg = "clic to change mode...";
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cairo_move_to(ctx, 10, 30);
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cairo_show_text(ctx,msg.c_str());
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}
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void
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TestWidget::calc_drawing_size(size_t& width, size_t& height) const
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{
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// FIXME: write me
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// some magic here!
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width = _desired_w;
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height = _desired_h;
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}
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void
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TestWidget::change_scaling_mode()
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{
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std::cout << " change_scaling_mode " << std::endl;
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scaling_mode scaling = get_scaling_mode();
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switch(scaling)
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{
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case scaling_none:
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set_scaling_mode(scaling_to_w);
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break;
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case scaling_to_w:
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case scaling_to_h:
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case scaling_min:
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case scaling_max:
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set_scaling_mode((scaling_mode)(scaling << 1));
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break;
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case scaling_all:
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set_scaling_mode(scaling_none);
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break;
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}
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redraw();
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}
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// ------------------------------------------------------
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//
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// MainWindow class
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//
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// ------------------------------------------------------
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class MainWindow : public Gtk::Window
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{
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public:
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MainWindow();
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virtual ~MainWindow();
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protected:
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TestWidget _test_widget;
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};
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MainWindow::MainWindow()
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{
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// This just sets the title of our new window.
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set_title("Cairo Widget Test: \"Do you like semaphores?\"");
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add(_test_widget);
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_test_widget.show();
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}
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MainWindow::~MainWindow()
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{
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}
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// ------------------------------------------------------
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//
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// main()
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//
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// ------------------------------------------------------
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int
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main(int argc, char** argv)
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{
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int ret = 0;
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Gtk::Main kit(argc, argv);
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// Gtk::Window win;
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MainWindow win;
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win.set_border_width(10);
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win.resize (200, 200);
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Gtk::Main::run(win);
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return ret;
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}
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