Cairo-Chart/test/ChartTest.vala

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using Gtk, CairoChart;
void plot_chart1 (Chart chart) {
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var s1 = new Series (chart);
var s2 = new Series (chart);
var s3 = new Series (chart);
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s1.title = new Text("Series 1"); s1.color = Color (1, 0, 0);
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s1.points = {Point128(0, 0), Point128(2, 1), Point128(1, 3)};
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s1.axis_x.position = Axis.Position.HIGH;
s1.axis_x.format = "%.3Lf";
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s2.title = new Text("Series 2"); s2.color = Color (0, 1, 0);
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s2.points = {Point128(5, -3), Point128(25, -18), Point128(-11, 173)};
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s3.title = new Text("Series 3"); s3.color = Color (0, 0, 1);
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s3.points = {Point128(9, 17), Point128(2, 10), Point128(122, 31)};
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s3.axis_y.position = Axis.Position.HIGH;
s1.axis_x.min = 0; s1.axis_x.max = 2;
s1.axis_y.min = 0; s1.axis_y.max = 3;
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s1.place.x_min = 0.25; s1.place.x_max = 0.75;
s1.place.y_min = 0.3; s1.place.y_max = 0.9;
s2.axis_x.min = -15; s2.axis_x.max = 30;
s2.axis_y.min = -20; s2.axis_y.max = 200;
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s2.place.x_min = 0.5; s2.place.x_max = 1;
s2.place.y_min = 0.0; s2.place.y_max = 0.5;
s3.axis_x.min = 0; s3.axis_x.max = 130;
s3.axis_y.min = 15; s3.axis_y.max = 35;
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s3.place.x_min = 0; s3.place.x_max = 0.5;
s3.place.y_min = 0.5; s3.place.y_max = 1.0;
s1.marker.type = Marker.Type.SQUARE;
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s2.marker.type = Marker.Type.CIRCLE;
s3.marker.type = Marker.Type.PRICLE_TRIANGLE;
s1.axis_x.title = new Text("Series 1: Axis X.");
s1.axis_y.title = new Text("Series 1: Axis Y.");
s2.axis_x.title = new Text("Series 2: Axis X.");
s2.axis_y.title = new Text("Series 2: Axis Y.");
s3.axis_x.title = new Text("Series 3: Axis X.");
s3.axis_y.title = new Text("Series 3: Axis Y.");
chart.series = { s1, s2, s3 };
}
void plot_chart2 (Chart chart) {
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var s1 = new Series (chart);
var s2 = new Series (chart);
var s3 = new Series (chart);
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s1.title = new Text("Series 1"); s1.color = Color (1, 0, 0);
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s1.points = {Point128(-12, 0), Point128(2, 1), Point128(20, 3)};
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s2.axis_y.position = Axis.Position.HIGH;
s1.axis_x.format = "%.3Lf";
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s2.title = new Text("Series 2"); s2.color = Color (0, 1, 0);
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s2.points = {Point128(5, -3), Point128(25, -18), Point128(-11, 173)};
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s3.title = new Text("Series 3"); s3.color = Color (0, 0, 1);
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s3.points = {Point128(9, 17), Point128(2, 10), Point128(-15, 31)};
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s3.axis_y.position = Axis.Position.HIGH;
s1.axis_x.min = -15; s1.axis_x.max = 30;
s1.axis_y.min = 0; s1.axis_y.max = 3;
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s1.place.x_min = 0.0; s1.place.x_max = 1.0;
s1.place.y_min = 0.3; s1.place.y_max = 0.9;
s2.axis_x.min = -15; s2.axis_x.max = 30;
s2.axis_y.min = -20; s2.axis_y.max = 200;
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s2.place.x_min = 0.0; s2.place.x_max = 1.0;
s2.place.y_min = 0.0; s2.place.y_max = 0.5;
s3.axis_x.min = -15; s3.axis_x.max = 30;
s3.axis_y.min = 15; s3.axis_y.max = 35;
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s3.place.x_min = 0.0; s3.place.x_max = 1.0;
s3.place.y_min = 0.5; s3.place.y_max = 1.0;
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s1.marker.type = Marker.Type.PRICLE_CIRCLE;
s2.marker.type = Marker.Type.PRICLE_SQUARE;
s3.marker.type = Marker.Type.SQUARE;
s1.axis_x.title = new Text("All Series: Axis X.");
s1.axis_y.title = new Text("Series 1: Axis Y.");
s2.axis_x.title = new Text("All Series: Axis X.");
s2.axis_y.title = new Text("Series 2: Axis Y.");
s3.axis_x.title = new Text("All Series: Axis X.");
s3.axis_y.title = new Text("Series 3: Axis Y.");
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//s1.axis_x.position = s2.axis_x.position = s3.axis_x.position = Axis.Position.HIGH;
//s1.axis_x.type = s2.axis_x.type = s3.axis_x.type = Axis.Type.DATE_TIME;
//s1.axis_x.max = s2.axis_x.max = s3.axis_x.max = 5*24*3600;
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chart.series = { s1, s2, s3 };
}
void plot_chart3 (Chart chart) {
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var s1 = new Series (chart);
var s2 = new Series (chart);
var s3 = new Series (chart);
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s1.title = new Text("Series 1"); s1.color = Color (1, 0, 0);
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s1.points = {Point128(0, 70), Point128(2, 155), Point128(1, -3)};
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s1.axis_x.position = Axis.Position.HIGH;
s1.axis_y.position = Axis.Position.HIGH;
s1.axis_x.format = "%.3Lf";
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s2.title = new Text("Series 2"); s2.color = Color (0, 1, 0);
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s2.points = {Point128(5, -3), Point128(25, -18), Point128(-11, 173)};
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s2.axis_y.position = Axis.Position.HIGH;
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s3.title = new Text("Series 3"); s3.color = Color (0, 0, 1);
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s3.points = {Point128(9, -17), Point128(2, 10), Point128(122, 31)};
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s3.axis_y.position = Axis.Position.HIGH;
s1.axis_x.min = 0; s1.axis_x.max = 2;
s1.axis_y.min = -20; s1.axis_y.max = 200;
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s1.place.x_min = 0.25; s1.place.x_max = 0.75;
s1.place.y_min = 0.0; s1.place.y_max = 1.0;
s2.axis_x.min = -15; s2.axis_x.max = 30;
s2.axis_y.min = -20; s2.axis_y.max = 200;
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s2.place.x_min = 0.5; s2.place.x_max = 1;
s2.place.y_min = 0.0; s2.place.y_max = 1.0;
s3.axis_x.min = 0; s3.axis_x.max = 130;
s3.axis_y.min = -20; s3.axis_y.max = 200;
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s3.place.x_min = 0; s3.place.x_max = 0.5;
s3.place.y_min = 0.0; s3.place.y_max = 1.0;
s1.marker.type = Marker.Type.SQUARE;
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s2.marker.type = Marker.Type.PRICLE_CIRCLE;
s3.marker.type = Marker.Type.TRIANGLE;
s1.axis_x.title = new Text("Series 1: Axis X.");
s1.axis_y.title = new Text("Series 1: Axis Y.");
s2.axis_x.title = new Text("Series 2: Axis X.");
s2.axis_y.title = new Text("Series 2: Axis Y.");
s3.axis_x.title = new Text("Series 3: Axis X.");
s3.axis_y.title = new Text("Series 3: Axis Y.");
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//s1.axis_y.position = s2.axis_y.position = s3.axis_y.position = Axis.Position.LOW;
chart.series = { s1, s2, s3 };
}
void plot_chart4 (Chart chart) {
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var s1 = new Series (chart);
var s2 = new Series (chart);
var s3 = new Series (chart);
var s4 = new Series (chart);
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s1.axis_x.type = Axis.Type.DATE_TIME;
s3.axis_x.type = Axis.Type.DATE_TIME;
s4.axis_x.type = Axis.Type.DATE_TIME;
s4.axis_x.dsec_signs = 5;
var now = new DateTime.now_local().to_unix();
var high = (uint64) (253000000000L);
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s1.title = new Text("Series 1"); s1.color = Color (1, 0, 0);
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s1.points = {Point128(now, 70), Point128(now - 100000, 155), Point128(now + 100000, 30)};
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s1.axis_x.position = Axis.Position.HIGH;
s1.axis_y.position = Axis.Position.HIGH;
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s2.title = new Text("Series 2"); s2.color = Color (0, 1, 0);
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s2.points = {Point128(5, -3), Point128(25, -18), Point128(-11, 173)};
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s2.axis_y.position = Axis.Position.HIGH;
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s3.title = new Text("Series 3"); s3.color = Color (0, 0, 1);
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s3.points = {Point128(high - 2 + 0.73, -17), Point128(high - 1 + 0.234, 10), Point128(high + 1 + 0.411, 31)};
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s3.axis_y.position = Axis.Position.HIGH;
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s4.title = new Text("Series 4"); s4.color = Color (0.5, 0.3, 0.9);
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s4.points = {Point128(high + 0.005, -19.05), Point128(high + 0.0051, 28), Point128(high + 0.0052, 55), Point128(high + 0.0053, 44)};
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s4.axis_y.position = Axis.Position.HIGH;
s1.axis_x.min = now - 100000; s1.axis_x.max = now + 100000;
s1.axis_y.min = -20; s1.axis_y.max = 200;
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s1.place.x_min = 0.25; s1.place.x_max = 0.75;
s1.place.y_min = 0.0; s1.place.y_max = 1.0;
s2.axis_x.min = -15; s2.axis_x.max = 30;
s2.axis_y.min = -20; s2.axis_y.max = 200;
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s2.place.x_min = 0.2; s2.place.x_max = 1;
s2.place.y_min = 0.0; s2.place.y_max = 1.0;
s3.axis_x.min = high - 2; s3.axis_x.max = high + 1;
s3.axis_y.min = -20; s3.axis_y.max = 200;
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s3.place.x_min = 0; s3.place.x_max = 0.8;
s3.place.y_min = 0.0; s3.place.y_max = 1.0;
s4.axis_x.min = high + 0.0049; s4.axis_x.max = high + 0.0054;
s4.axis_y.min = -20; s4.axis_y.max = 200;
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s4.place.x_min = 0.2; s4.place.x_max = 1.0;
s4.place.y_min = 0.0; s4.place.y_max = 1.0;
s1.marker.type = Marker.Type.SQUARE;
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s2.marker.type = Marker.Type.PRICLE_CIRCLE;
s3.marker.type = Marker.Type.TRIANGLE;
s4.marker.type = Marker.Type.PRICLE_SQUARE;
s1.axis_x.title = new Text("Series 1: Axis X.");
s1.axis_y.title = new Text("Series 1: Axis Y.");
s2.axis_x.title = new Text("Series 2: Axis X.");
s2.axis_y.title = new Text("Series 2: Axis Y.");
s3.axis_x.title = new Text("Series 3: Axis X.");
s3.axis_y.title = new Text("Series 3: Axis Y.");
s4.axis_x.title = new Text("Series 4: Axis X.");
s4.axis_y.title = new Text("Series 4: Axis Y.");
chart.series = { s1, s2, s3, s4 };
}
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bool point_in_chart (Chart chart, double x, double y) {
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if (x < chart.plot_x_min) return false;
if (x > chart.plot_x_max) return false;
if (y < chart.plot_y_min) return false;
if (y > chart.plot_y_max) return false;
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return true;
}
enum MouseState {
FREE = 0, // default
DRAW_SELECTION,
MOVING_CHART,
CURSOR_SELECTION
}
int main (string[] args) {
init (ref args);
var window = new Window ();
window.title = "Chart Test.";
window.border_width = 5;
window.window_position = WindowPosition.CENTER;
window.set_default_size (640, 480);
window.destroy.connect (main_quit);
var chart1 = new Chart();
var chart2 = new Chart();
var chart3 = new Chart();
var chart4 = new Chart();
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var label = new Gtk.Label ("Chart Test!");
var button1 = new Button.with_label("Separate axes");
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var button2 = new Button.with_label("Joint X axes");
var button3 = new Button.with_label("Joint Y axes");
var button4 = new Button.with_label("Dates/Times");
var button5 = new Button.with_label("rm Axis Titles");
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var button6 = new Button.with_label("Dates only");
var button7 = new Button.with_label("Times only");
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var button8 = new Button.with_label("Date+Time");
plot_chart1 (chart1);
plot_chart2 (chart2);
plot_chart3 (chart3);
plot_chart4 (chart4);
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chart1.selection_style = Line.Style(Color(0.3, 0.3, 0.3, 0.7), 1);
var da = new DrawingArea();
da.set_events ( Gdk.EventMask.BUTTON_PRESS_MASK
|Gdk.EventMask.BUTTON_RELEASE_MASK
|Gdk.EventMask.POINTER_MOTION_MASK
);
var chart = chart1;
var radio_button1 = new RadioButton.with_label (null, "Top Legend");
var radio_button2 = new RadioButton.with_label (radio_button1.get_group(), "Right Legend");
var radio_button3 = new RadioButton.with_label_from_widget (radio_button1, "Left Legend");
var radio_button4 = new RadioButton.with_label_from_widget (radio_button1, "Bottom Legend");
var radio_button7 = new RadioButton.with_label (null, "Vertical Cursors");
var radio_button8 = new RadioButton.with_label_from_widget (radio_button7, "Horizontal Cursors");
button1.clicked.connect (() => {
chart = chart1; da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
switch (chart.legend.position) {
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case Legend.Position.TOP: radio_button1.set_active(true); break;
case Legend.Position.RIGHT: radio_button2.set_active(true); break;
case Legend.Position.LEFT: radio_button3.set_active(true); break;
case Legend.Position.BOTTOM: radio_button4.set_active(true); break;
}
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switch (chart.cursors.cursor_style.orientation) {
case Cursors.Orientation.VERTICAL: radio_button7.set_active(true); break;
case Cursors.Orientation.HORIZONTAL: radio_button8.set_active(true); break;
}
});
button2.clicked.connect (() => {
chart = chart2; da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
switch (chart.legend.position) {
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case Legend.Position.TOP: radio_button1.set_active(true); break;
case Legend.Position.RIGHT: radio_button2.set_active(true); break;
case Legend.Position.LEFT: radio_button3.set_active(true); break;
case Legend.Position.BOTTOM: radio_button4.set_active(true); break;
}
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switch (chart.cursors.cursor_style.orientation) {
case Cursors.Orientation.VERTICAL: radio_button7.set_active(true); break;
case Cursors.Orientation.HORIZONTAL: radio_button8.set_active(true); break;
}
});
button3.clicked.connect (() => {
chart = chart3; da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
switch (chart.legend.position) {
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case Legend.Position.TOP: radio_button1.set_active(true); break;
case Legend.Position.RIGHT: radio_button2.set_active(true); break;
case Legend.Position.LEFT: radio_button3.set_active(true); break;
case Legend.Position.BOTTOM: radio_button4.set_active(true); break;
}
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switch (chart.cursors.cursor_style.orientation) {
case Cursors.Orientation.VERTICAL: radio_button7.set_active(true); break;
case Cursors.Orientation.HORIZONTAL: radio_button8.set_active(true); break;
}
});
button4.clicked.connect (() => {
chart = chart4; da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
switch (chart.legend.position) {
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case Legend.Position.TOP: radio_button1.set_active(true); break;
case Legend.Position.RIGHT: radio_button2.set_active(true); break;
case Legend.Position.LEFT: radio_button4.set_active(true); break;
case Legend.Position.BOTTOM: radio_button4.set_active(true); break;
}
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switch (chart.cursors.cursor_style.orientation) {
case Cursors.Orientation.VERTICAL: radio_button7.set_active(true); break;
case Cursors.Orientation.HORIZONTAL: radio_button8.set_active(true); break;
}
});
button5.clicked.connect (() => {
for (var i = 0; i < chart.series.length; ++i) {
var s = chart.series[i];
s.axis_x.title.text = "";
s.axis_y.title.text = "";
}
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
});
button6.clicked.connect (() => {
for (var i = 0; i < chart.series.length; ++i) {
var s = chart.series[i];
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s.axis_x.date_format = "%Y.%m.%d";
s.axis_x.time_format = "";
}
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
});
button7.clicked.connect (() => {
for (var i = 0; i < chart.series.length; ++i) {
var s = chart.series[i];
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s.axis_x.date_format = "";
s.axis_x.time_format = "%H:%M:%S";
}
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
});
button8.clicked.connect (() => {
for (var i = 0; i < chart.series.length; ++i) {
var s = chart.series[i];
s.axis_x.date_format = "%Y.%m.%d";
s.axis_x.time_format = "%H:%M:%S";
}
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
});
radio_button1.toggled.connect ((button) => {
if (button.get_active()) {
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chart.legend.position = Legend.Position.TOP;
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
}
});
radio_button2.toggled.connect ((button) => {
if (button.get_active()) {
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chart.legend.position = Legend.Position.RIGHT;
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
}
});
radio_button3.toggled.connect ((button) => {
if (button.get_active()) {
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chart.legend.position = Legend.Position.LEFT;
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
}
});
radio_button4.toggled.connect ((button) => {
if (button.get_active()) {
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chart.legend.position = Legend.Position.BOTTOM;
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
}
});
/* var radio_button5 = new RadioButton.with_label (null, "Labels");
var radio_button6 = new RadioButton.with_label_from_widget (radio_button5, "Cursors");
radio_button5.toggled.connect ((button) => {
// TODO: set labels
if (button.get_active()) {
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
}
});
radio_button6.toggled.connect ((button) => {
// TODO: set cursors
if (button.get_active()) {
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
}
});*/
radio_button7.toggled.connect ((button) => {
if (button.get_active()) {
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chart.cursors.cursor_style.orientation = Cursors.Orientation.VERTICAL;
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
}
});
radio_button8.toggled.connect ((button) => {
if (button.get_active()) {
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chart.cursors.cursor_style.orientation = Cursors.Orientation.HORIZONTAL;
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
}
});
MouseState mouse_state = MouseState.FREE;
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double sel_x0 = 0, sel_x1 = 0, sel_y0 = 0, sel_y1 = 0;
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double mov_x0 = 0, mov_y0 = 0;
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da.draw.connect((ctx) => {
chart.ctx = ctx;
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chart.pos.width = da.get_allocated_width();
chart.pos.height = da.get_allocated_height();
chart.clear();
// user's pre draw operations here...
// ...
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/*var ret = */chart.draw();
// user's post draw operations here...
if (mouse_state == MouseState.DRAW_SELECTION)
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chart.draw_selection (Cairo.Rectangle() {x = sel_x0, y = sel_y0, width = sel_x1 - sel_x0, height = sel_y1 - sel_y0});
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// show delta
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var str = chart.cursors.get_cursors_delta_str(chart);
if (str != "") {
var text = "Δ = " + str;
var text_t = new Text(text);
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var w = text_t.get_width(ctx);
var h = text_t.get_height(ctx);
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var x0 = chart.plot_x_max - w - 5;
var y0 = chart.plot_y_min + h + 5;
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chart.color = chart.legend.bg_color;
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ctx.rectangle (x0, y0 - h, w, h);
ctx.fill();
ctx.move_to (x0, y0);
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chart.color = chart.joint_axis_color;
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ctx.show_text(text);
}
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return true;//ret;
});
da.button_press_event.connect((event) => {
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if (!point_in_chart(chart, event.x, event.y)) return true;
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switch (event.button) {
case 1: // start cursor position selection
if ((event.state & Gdk.ModifierType.SHIFT_MASK) != 0) { // remove cursor
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chart.cursors.set_active_cursor (chart, Point(event.x, event.y), true);
chart.cursors.remove_active_cursor(chart);
mouse_state = MouseState.FREE;
} else { // add cursor
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chart.cursors.set_active_cursor (chart, Point(event.x, event.y));
mouse_state = MouseState.CURSOR_SELECTION;
}
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
break;
case 2: // start zoom area selection
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sel_x0 = sel_x1 = event.x;
sel_y0 = sel_y1 = event.y;
mouse_state = MouseState.DRAW_SELECTION;
break;
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case 3: // start moving
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mov_x0 = event.x;
mov_y0 = event.y;
mouse_state = MouseState.MOVING_CHART;
break;
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}
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return true; // return ret;
});
da.button_release_event.connect((event) => {
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if (!point_in_chart(chart, event.x, event.y)) return true;
switch (event.button) {
case 1: // start cursor position selection
if ((event.state & Gdk.ModifierType.SHIFT_MASK) != 0) { // remove cursor
//chart.remove_active_cursor ();
//da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
//mouse_state = MouseState.FREE;
} else { // add cursor
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chart.cursors.add_active_cursor ();
mouse_state = MouseState.FREE;
}
break;
case 2:
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sel_x1 = event.x;
sel_y1 = event.y;
if (sel_x1 > sel_x0 && sel_y1 > sel_y0)
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chart.zoom_in (Cairo.Rectangle(){x = sel_x0, y = sel_y0, width = sel_x1 - sel_x0, height = sel_y1 - sel_y0});
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else
chart.zoom_out ();
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
mouse_state = MouseState.FREE;
break;
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case 3:
mouse_state = MouseState.FREE;
break;
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}
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return true; // return ret;
});
da.motion_notify_event.connect((event) => {
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if (!point_in_chart(chart, event.x, event.y)) return true;
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switch (mouse_state) {
case MouseState.DRAW_SELECTION:
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sel_x1 = event.x;
sel_y1 = event.y;
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
break;
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case MouseState.MOVING_CHART:
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var delta_x = event.x - mov_x0, delta_y = event.y - mov_y0;
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chart.move (Point(){x = delta_x, y = delta_y});
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mov_x0 = event.x;
mov_y0 = event.y;
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
break;
case MouseState.CURSOR_SELECTION:
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chart.cursors.set_active_cursor (chart, Point(event.x, event.y));
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
break;
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}
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return true; // return ret;
});
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da.add_events(Gdk.EventMask.SCROLL_MASK);
da.scroll_event.connect((event) => {
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//var ret = chart.scroll_notify_event(event);
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return true; // return ret;
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});
var vbox2 = new Box(Orientation.VERTICAL, 0);
vbox2.pack_start(button1, false, false, 0);
vbox2.pack_start(button2, false, false, 0);
vbox2.pack_start(button3, false, false, 0);
vbox2.pack_start(button4, false, false, 0);
vbox2.pack_start(button5, false, false, 0);
vbox2.pack_start(button6, false, false, 0);
vbox2.pack_start(button7, false, false, 0);
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vbox2.pack_start(button8, false, false, 0);
vbox2.pack_start(radio_button1, false, false, 0);
vbox2.pack_start(radio_button2, false, false, 0);
vbox2.pack_start(radio_button3, false, false, 0);
vbox2.pack_start(radio_button4, false, false, 0);
//vbox2.pack_start(radio_button5, false, false, 0);
//vbox2.pack_start(radio_button6, false, false, 0);
vbox2.pack_start(radio_button7, false, false, 0);
vbox2.pack_start(radio_button8, false, false, 0);
var hbox = new Box(Orientation.HORIZONTAL, 0);
hbox.pack_start(da, true, true, 0);
hbox.pack_end(vbox2, false, false, 0);
var vbox = new Box(Orientation.VERTICAL, 0);
vbox.pack_start(label, false, false, 0);
vbox.pack_end(hbox, true, true, 0);
window.add(vbox);
window.show_all();
Gtk.main();
return 0;
}