public ListBoxSample()
{
// Default list box
ListBox list = new ListBox();
for (int n = 0; n < 100; n++)
list.Items.Add("Value " + n);
list.KeyPressed += (sender, e) =>
{
if (e.Key == Key.Insert)
{
int r = list.SelectedRow + 1;
list.Items.Insert(r, "Value " + list.Items.Count + 1);
list.ScrollToRow(r);
list.SelectRow(r);
list.FocusedRow = r;
}
};
PackStart(list, true);
// Custom list box
ListBox customList = new ListBox();
customList.GridLinesVisible = true;
ListStore store = new ListStore(name, icon);
customList.DataSource = store;
customList.Views.Add(new ImageCellView(icon));
customList.Views.Add(new TextCellView(name));
var png = Image.FromResource(typeof(Application), "class.png");
for (int n = 0; n < 100; n++)
{
var r = store.AddRow();
store.SetValue(r, icon, png);
store.SetValue(r, name, "Value " + n);
}
customList.KeyPressed += (sender, e) =>
{
if (e.Key == Key.Insert)
{
var r = store.InsertRowAfter(customList.SelectedRow < 0 ? 0 : customList.SelectedRow);
store.SetValue(r, icon, png);
store.SetValue(r, name, "Value " + (store.RowCount + 1));
customList.ScrollToRow(r);
customList.SelectRow(r);
customList.FocusedRow = r;
}
};
PackStart(customList, true);
var spnValue = new SpinButton();
spnValue.MinimumValue = 0;
spnValue.MaximumValue = 99;
spnValue.IncrementValue = 1;
spnValue.Digits = 0;
var btnScroll = new Button("Go!");
btnScroll.Clicked += (sender, e) => customList.ScrollToRow((int)spnValue.Value);
HBox scrollActBox = new HBox();
scrollActBox.PackStart(new Label("Scroll to Value: "));
scrollActBox.PackStart(spnValue);
scrollActBox.PackStart(btnScroll);
PackStart(scrollActBox);
}
public DefaultFontSelectorBackend()
{
families = Font.AvailableFontFamilies.ToList();
families.Sort();
storeFonts = new ListStore(dfamily, dfamilymarkup);
listFonts.DataSource = storeFonts;
listFonts.HeadersVisible = false;
listFonts.Columns.Add("Font", new TextCellView()
{
TextField = dfamily, MarkupField = dfamilymarkup
});
listFonts.MinWidth = 150;
foreach (var family in families)
{
var row = storeFonts.AddRow();
storeFonts.SetValues(row, dfamily, family, dfamilymarkup, "<span font=\"" + family + " " + (listFonts.Font.Size) + "\">" + family + "</span>");
}
storeFace = new ListStore(dfaceName, dfaceMarkup, dfaceFont);
listFace.DataSource = storeFace;
listFace.HeadersVisible = false;
listFace.Columns.Add("Style", new TextCellView()
{
TextField = dfaceName, MarkupField = dfaceMarkup
});
listFace.MinWidth = 60;
//listFace.HorizontalScrollPolicy = ScrollPolicy.Never;
foreach (var size in DefaultFontSizes)
{
listSize.Items.Add(size);
}
spnSize.Digits = 1;
spnSize.MinimumValue = 1;
spnSize.MaximumValue = 800;
spnSize.IncrementValue = 1;
PreviewText = "The quick brown fox jumps over the lazy dog.";
spnSize.ValueChanged += (sender, e) => {
if (DefaultFontSizes.Contains(spnSize.Value))
{
var row = Array.IndexOf(DefaultFontSizes, spnSize.Value);
listSize.ScrollToRow(row);
listSize.SelectRow(row);
}
else
{
listSize.UnselectAll();
}
SetFont(selectedFont.WithSize(spnSize.Value));
};
SelectedFont = Font.SystemFont;
UpdateFaceList(selectedFont); // family change not connected at this point, update manually
listFonts.SelectionChanged += (sender, e) => {
if (listFonts.SelectedRow >= 0)
{
var newFont = selectedFont.WithFamily(storeFonts.GetValue(listFonts.SelectedRow, dfamily));
UpdateFaceList(newFont);
SetFont(newFont);
}
};
listFace.SelectionChanged += (sender, e) => {
if (listFace.SelectedRow >= 0)
{
SetFont(storeFace.GetValue(listFace.SelectedRow, dfaceFont).WithSize(selectedFont.Size));
}
};
listSize.SelectionChanged += (sender, e) => {
if (listSize.SelectedRow >= 0 && Math.Abs(DefaultFontSizes [listSize.SelectedRow] - spnSize.Value) > double.Epsilon)
{
spnSize.Value = DefaultFontSizes[listSize.SelectedRow];
}
};
VBox familyBox = new VBox();
familyBox.PackStart(new Label("Font:"));
familyBox.PackStart(listFonts, true);
VBox styleBox = new VBox();
styleBox.PackStart(new Label("Style:"));
styleBox.PackStart(listFace, true);
VBox sizeBox = new VBox();
sizeBox.PackStart(new Label("Size:"));
sizeBox.PackStart(spnSize);
sizeBox.PackStart(listSize, true);
HBox fontBox = new HBox();
fontBox.PackStart(familyBox, true);
fontBox.PackStart(styleBox, true);
fontBox.PackStart(sizeBox);
VBox mainBox = new VBox();
mainBox.MinWidth = 350;
mainBox.MinHeight = 300;
mainBox.PackStart(fontBox, true);
mainBox.PackStart(new Label("Preview:"));
mainBox.PackStart(previewText);
Content = mainBox;
}
