Window() : canvas(), checkbutton1("Plot 1"),
checkbutton2("Plot 2"), checkbutton3("Plot 3"),
label_x("X:"),
label_y("Y:") {
set_default_size(720, 580);
Gdk::Geometry geometry;
geometry.min_aspect = geometry.max_aspect = double(720)/double(580);
set_geometry_hints(*this, geometry, Gdk::HINT_ASPECT);
set_title("Gtkmm-PLplot test4");
canvas.set_hexpand(true);
canvas.set_vexpand(true);
canvas.set_background_color(Gdk::RGBA("Light Gray"));
grid.set_column_homogeneous(true);
checkbutton1.set_vexpand(false);
checkbutton1.set_hexpand(false);
checkbutton1.set_halign(Gtk::ALIGN_CENTER);
checkbutton2.set_vexpand(false);
checkbutton2.set_hexpand(false);
checkbutton2.set_halign(Gtk::ALIGN_CENTER);
checkbutton3.set_vexpand(false);
checkbutton3.set_hexpand(false);
checkbutton3.set_halign(Gtk::ALIGN_CENTER);
std::valarray<double> x_va = Gtk::PLplot::indgen_va(1000)/50.0 - 10.0;
std::valarray<double> y_va1 = sinh(x_va);
std::valarray<double> y_va2 = cosh(x_va);
std::valarray<double> y_va3 = tanh(x_va);
//generate the data, the plot, add them to the canvas and use the return value to pass it to the checkbutton
Gtk::PLplot::Plot2D *plot1 = Gtk::manage(
new Gtk::PLplot::Plot2D(
*Gtk::manage(
new Gtk::PLplot::PlotData2D(
x_va,
y_va1,
Gdk::RGBA("blue"),
Gtk::PLplot::LineStyle::CONTINUOUS,
3.0
)
),
"X-axis",
"Y-axis",
"Hyperbolic sine",
0.5,
0.5,
0.0,
0.0
)
);
canvas.add_plot(*plot1);
checkbutton1.connect_plot(plot1);
Gtk::PLplot::Plot2D *plot2 = Gtk::manage(
new Gtk::PLplot::Plot2D(
*Gtk::manage(
new Gtk::PLplot::PlotData2D(
x_va,
y_va2,
Gdk::RGBA("red"),
Gtk::PLplot::LineStyle::CONTINUOUS,
3.0
)
),
"X-axis",
"Y-axis",
"Hyperbolic cosine",
0.5,
0.5,
0.5,
0.0
)
);
canvas.add_plot(*plot2);
checkbutton2.connect_plot(plot2);
Gtk::PLplot::Plot2D *plot3 = Gtk::manage(
new Gtk::PLplot::Plot2D(
*Gtk::manage(
new Gtk::PLplot::PlotData2D(
x_va,
y_va3,
Gdk::RGBA("green"),
Gtk::PLplot::LineStyle::CONTINUOUS,
3.0
)
),
"X-axis",
"Y-axis",
"Hyperbolic tangent",
0.4,
0.4,
0.2,
0.55
)
);
canvas.add_plot(*plot3);
checkbutton3.connect_plot(plot3);
checkbutton1.set_active();
checkbutton2.set_active(false);
checkbutton3.set_active();
//let's make the first plot unpannable
plot1->set_region_pannable(false);
//let's override the background color of the second plot and hide it to make the surprise complete!!
plot2->set_background_color(Gdk::RGBA("Yellow Green"));
plot2->hide();
//also let's disable the region selection, for no reason whatsoever!
plot2->set_region_selectable(false);
//let's override the default region of this plot, this is NOT influenced by set_region_selectable()!!!
plot2->set_region(-10, 10, -10, 10);
//we can also change some other colors
plot2->set_axes_color(Gdk::RGBA("Blue"));
plot2->set_titles_color(Gdk::RGBA("Purple"));
plot2->set_box_style(Gtk::PLplot::BOX_TICKS_TICK_LABELS_MAIN_AXES_MAJOR_MINOR_TICK_GRID);
//lets'give the third plot a nice opaque background color
plot3->set_background_color(Gdk::RGBA("White"));
//but disable zooming by scrolling
plot3->set_region_zoomable(false);
//and give it an unusual selection box
plot3->set_region_selection_color(Gdk::RGBA("Purple"));
plot3->set_region_selection_width(4.0);
//hook up signal_cursor_motion to the entries
unsigned int plotnr = 0;
while (1) {
try {
Gtk::PLplot::Plot2D *plot = dynamic_cast<Gtk::PLplot::Plot2D *>(canvas.get_plot(plotnr++));
plot->signal_cursor_motion().connect([this](double x, double y){
entry_x.set_text(Glib::Ascii::dtostr(x));
entry_y.set_text(Glib::Ascii::dtostr(y));
});
}
catch (Gtk::PLplot::Exception &e) {
break;
}
}
grid.attach(checkbutton1, 0, 0, 1, 1);
grid.attach(checkbutton2, 1, 0, 1, 1);
grid.attach(checkbutton3, 2, 0, 1, 1);
grid.attach(canvas, 0, 1, 3, 1);
coordinates_grid.set_column_homogeneous(false);
coordinates_grid.attach(label_x, 0, 0, 1, 1);
coordinates_grid.attach(entry_x, 1, 0, 1, 1);
coordinates_grid.attach(label_y, 2, 0, 1, 1);
coordinates_grid.attach(entry_y, 3, 0, 1, 1);
label_x.set_vexpand(false);
label_x.set_hexpand(true);
label_x.set_halign(Gtk::ALIGN_END);
label_y.set_vexpand(false);
label_y.set_hexpand(false);
label_y.set_halign(Gtk::ALIGN_CENTER);
entry_x.set_vexpand(false);
entry_x.set_hexpand(false);
entry_x.set_halign(Gtk::ALIGN_END);
entry_y.set_vexpand(false);
entry_y.set_hexpand(true);
entry_y.set_halign(Gtk::ALIGN_START);
coordinates_grid.set_column_spacing(5);
grid.attach(coordinates_grid, 0, 2, 3, 1);
grid.set_row_spacing(5);
add(grid);
set_border_width(10);
grid.show_all();
}
