mirror of
https://github.com/Ryujinx/GtkSharp.git
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131 lines
3.6 KiB
C#
131 lines
3.6 KiB
C#
/* Size Groups
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*
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* SizeGroup provides a mechanism for grouping a number of
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* widgets together so they all request the same amount of space.
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* This is typically useful when you want a column of widgets to
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* have the same size, but you can't use a Table widget.
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*
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* Note that size groups only affect the amount of space requested,
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* not the size that the widgets finally receive. If you want the
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* widgets in a SizeGroup to actually be the same size, you need
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* to pack them in such a way that they get the size they request
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* and not more. For example, if you are packing your widgets
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* into a table, you would not include the Gtk.Fill flag.
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*/
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using System;
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using Gtk;
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namespace GtkDemo
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{
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[Demo ("Size Group", "DemoSizeGroup.cs")]
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public class DemoSizeGroup : Dialog
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{
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private SizeGroup sizeGroup;
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static string [] colors = { "Red", "Green", "Blue" };
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static string [] dashes = { "Solid", "Dashed", "Dotted" };
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static string [] ends = { "Square", "Round", "Arrow" };
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public DemoSizeGroup () : base ("SizeGroup", null, DialogFlags.DestroyWithParent,
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Gtk.Stock.Close, Gtk.ResponseType.Close)
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{
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Resizable = false;
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VBox vbox = new VBox (false, 5);
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this.ContentArea.PackStart (vbox, true, true, 0);
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vbox.BorderWidth = 5;
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sizeGroup = new SizeGroup (SizeGroupMode.Horizontal);
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// Create one frame holding color options
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Frame frame = new Frame ("Color Options");
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vbox.PackStart (frame, true, true, 0);
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Table table = new Table (2, 2, false);
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table.BorderWidth = 5;
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table.RowSpacing = 5;
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table.ColumnSpacing = 10;
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frame.Add (table);
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AddRow (table, 0, sizeGroup, "_Foreground", colors);
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AddRow (table, 1, sizeGroup, "_Background", colors);
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// And another frame holding line style options
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frame = new Frame ("Line Options");
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vbox.PackStart (frame, false, false, 0);
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table = new Table (2, 2, false);
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table.BorderWidth = 5;
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table.RowSpacing = 5;
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table.ColumnSpacing = 10;
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frame.Add (table);
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AddRow (table, 0, sizeGroup, "_Dashing", dashes);
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AddRow (table, 1, sizeGroup, "_Line ends", ends);
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// And a check button to turn grouping on and off
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CheckButton checkButton = new CheckButton ("_Enable grouping");
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vbox.PackStart (checkButton, false, false, 0);
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checkButton.Active = true;
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checkButton.Toggled += new EventHandler (ToggleGrouping);
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ShowAll ();
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}
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// Convenience function to create a combo box holding a number of strings
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private ComboBox CreateComboBox (string [] strings)
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{
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ComboBoxText combo = new ComboBoxText ();
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foreach (string str in strings)
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combo.AppendText (str);
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combo.Active = 0;
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return combo;
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}
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private void AddRow (Table table, uint row, SizeGroup sizeGroup, string labelText, string [] options)
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{
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Label label = new Label (labelText);
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label.SetAlignment (0, 1);
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table.Attach (label,
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0, 1, row, row + 1,
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AttachOptions.Expand | AttachOptions.Fill, 0,
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0, 0);
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ComboBox combo = CreateComboBox (options);
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label.MnemonicWidget = combo;
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sizeGroup.AddWidget (combo);
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table.Attach (combo,
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1, 2, row, row + 1,
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0, 0,
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0, 0);
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}
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private void ToggleGrouping (object o, EventArgs args)
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{
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ToggleButton checkButton = (ToggleButton)o;
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// SizeGroupMode.None is not generally useful, but is useful
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// here to show the effect of SizeGroupMode.Horizontal by
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// contrast
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SizeGroupMode mode;
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if (checkButton.Active)
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mode = SizeGroupMode.Horizontal;
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else
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mode = SizeGroupMode.None;
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sizeGroup.Mode = mode;
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}
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protected override void OnResponse (Gtk.ResponseType responseId)
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{
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Destroy ();
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}
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}
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}
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