# ComboBox(Vala)

Tiffany Antopolski
tiffany.antopolski@gmail.com 2013
항목 목록을 선택할 때 사용하는 위젯
조성호
shcho@gnome.org 2017-2019.

# ComboBox(두 칸 짜리)

이 ComboBox는 여러분이 바꿔서 선택한 내용을 터미널에 나타냅니다.

# 예제 결과를 만드는 코드

class MyWindow : Gtk.ApplicationWindow {

string[] file = {"Select", "New", "Open", "Save"}; string[] stock_item = {"","gtk-new", "gtk-open", "gtk-save"};

enum Column { FILE, STOCK_ITEM }

/* Constructor */ internal MyWindow (MyApplication app) { Object (application: app, title: "Welcome to GNOME");

this.set_default_size (200, -1); this.border_width = 10;

Gtk.ListStore liststore = new Gtk.ListStore (2, typeof (string), typeof (string));

for (int i = 0; i < file.length; i++){ Gtk.TreeIter iter; liststore.append (out iter); liststore.set (iter, Column.FILE, file[i]); liststore.set (iter, Column.STOCK_ITEM, stock_item[i]); }

Gtk.ComboBox combobox = new Gtk.ComboBox.with_model (liststore);

/* CellRenderers render the data. */ Gtk.CellRendererText cell = new Gtk.CellRendererText (); Gtk.CellRendererPixbuf cell_pb = new Gtk.CellRendererPixbuf ();

/* we pack the cell into the beginning of the combobox, allocating * no more space than needed; * first the image, then the text; * note that it does not matter in which order they are in the model, * the visualization is decided by the order of the cellrenderers */ combobox.pack_start (cell_pb, false); combobox.pack_start (cell, false);

/* associate a property of the cellrenderer to a column in the model * used by the combobox */ combobox.set_attributes (cell_pb, "stock_id", Column.STOCK_ITEM); combobox.set_attributes (cell, "text", Column.FILE);

/* Set the first item in the list to be selected (active). */ combobox.set_active (0);

/* Connect the 'changed' signal of the combobox * to the signal handler (aka. callback function). */ combobox.changed.connect (this.item_changed);

/* Add the combobox to this window */ this.add (combobox); combobox.show (); }

void item_changed (Gtk.ComboBox combo) { if (combo.get_active () !=0) { print ("You chose " + file [combo.get_active ()] +"\n"); } } }

class MyApplication : Gtk.Application { protected override void activate () { new MyWindow (this).show (); } }

int main (string[] args) { return new MyApplication ().run (args); }

# API 참고서

이 예제는 다음 참고자료가 필요합니다:

GtkComboBox

GtkListStore

GtkCellRendererText

GtkCellRendererPixbuf

스톡 항목