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<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" xmlns:xi="http://www.w3.org/2001/XInclude" type="guide" style="task" id="spinbutton.vala" xml:lang="cs">
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<info>
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<title type="text">SpinButton (Vala)</title>
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<link type="guide" xref="beginner.vala#entry"/>
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<link type="seealso" xref="label.vala"/>
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<link type="seealso" xref="grid.vala"/>
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<revision version="0.1" date="2012-05-07" status="draft"/>
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<credit type="author copyright">
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<name>Tiffany Antopolski</name>
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<email its:translate="no">tiffany.antopolski@gmail.com</email>
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<years>2012</years>
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</credit>
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<desc>Získává celé nebo desetinné číslo.</desc>
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</info>
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<title>SpinButton</title>
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<media type="image" mime="image/png" src="media/spinbutton.png"/>
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Zvolte číslo tak, že jej napíšete nebo naklikáte tlačítky <gui>+</gui>/<gui>-</gui>!
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/* This is the application. */
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public class MyApplication : Gtk.Application {
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Gtk.Label label;
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/* Přepíše signál "activate" z GLib.Application. */
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protected override void activate () {
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var window = new Gtk.ApplicationWindow (this);
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window.title = "SpinButton Example";
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window.set_default_size (210, 70);
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window.set_border_width (5);
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var spinbutton = new Gtk.SpinButton.with_range (0, 100, 1);
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spinbutton.set_hexpand (true);
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label = new Gtk.Label ("Choose a number");
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var grid = new Gtk.Grid ();
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grid.attach (spinbutton, 0, 0, 1, 1);
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grid.attach (label, 0, 1, 1, 1);
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spinbutton.value_changed.connect (this.value_changed_cb);
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window.add (grid);
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window.show_all ();
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}
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void value_changed_cb (Gtk.SpinButton spin) {
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label.set_text ("The number you selected is %.0f.".printf (spin.get_value()));
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}
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}
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/* main vytvoří a spustí aplikaci */
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public int main (string[] args) {
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return new MyApplication ().run (args);
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}
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V této ukázce se používá následující:
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<list>
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<item><link href="http://www.valadoc.org/gtk+-3.0/Gtk.SpinButton.html">Gtk.SpinButton</link> </item>
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</list>
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</page>
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