C# Button.SizeRequest方法代码示例

		void ShowLoadSourceFile (StackFrame sf)
		{
			if (messageOverlayWindow != null) {
				messageOverlayWindow.Destroy ();
				messageOverlayWindow = null;
			}
			messageOverlayWindow = new OverlayMessageWindow ();

			var hbox = new HBox ();
			hbox.Spacing = 8;
			var label = new Label (string.Format ("{0} not found. Find source file at alternative location.", Path.GetFileName (sf.SourceLocation.FileName)));
			hbox.TooltipText = sf.SourceLocation.FileName;
			var color = (HslColor)editor.ColorStyle.NotificationText.Foreground;
			label.ModifyFg (StateType.Normal, color);

			int w, h;
			label.Layout.GetPixelSize (out w, out h);

			hbox.PackStart (label, true, true, 0);
			var openButton = new Button (Gtk.Stock.Open);
			openButton.WidthRequest = 60;
			hbox.PackEnd (openButton, false, false, 0); 

			var container = new HBox ();
			const int containerPadding = 8;
			container.PackStart (hbox, true, true, containerPadding); 
			messageOverlayWindow.Child = container; 
			messageOverlayWindow.ShowOverlay (editor);

			messageOverlayWindow.SizeFunc = () => openButton.SizeRequest ().Width + w + hbox.Spacing * 5 + containerPadding * 2;
			openButton.Clicked += delegate {
				var dlg = new OpenFileDialog (GettextCatalog.GetString ("File to Open"), SelectFileDialogAction.Open) {
					TransientFor = IdeApp.Workbench.RootWindow,
					ShowEncodingSelector = true,
					ShowViewerSelector = true
				};
				if (!dlg.Run ())
					return;
				var newFilePath = dlg.SelectedFile;
				try {
					if (File.Exists (newFilePath)) {
						if (SourceCodeLookup.CheckFileMd5 (newFilePath, sf.SourceLocation.FileHash)) {
							SourceCodeLookup.AddLoadedFile (newFilePath, sf.SourceLocation.FileName);
							sf.UpdateSourceFile (newFilePath);
							if (IdeApp.Workbench.OpenDocument (newFilePath, null, sf.SourceLocation.Line, 1, OpenDocumentOptions.Debugger) != null) {
								this.WorkbenchWindow.CloseWindow (false);
							}
						} else {
							MessageService.ShowWarning ("File checksum doesn't match.");
						}
					} else {
						MessageService.ShowWarning ("File not found.");
					}
				} catch (Exception) {
					MessageService.ShowWarning ("Error opening file");
				}
			};
		}

		void ShowIncorretEolMarkers (string fileName, bool multiple)
		{
			RemoveMessageBar ();
			messageOverlayWindow = new OverlayMessageWindow ();

			var hbox = new HBox ();
			hbox.Spacing = 8;

			var image = new HoverCloseButton ();
			hbox.PackStart (image, false, false, 0);
			var label = new Label (string.Format ("This file has line endings ({0}) which differ from the policy settings ({1}).", GetEolString (DetectedEolMarker), GetEolString (textEditor.Options.DefaultEolMarker)));
			var color = (Mono.TextEditor.HslColor)textEditor.ColorStyle.NotificationText.Foreground;
			label.ModifyFg (StateType.Normal, color);

			int w, h;
			label.Layout.GetPixelSize (out w, out h);
			label.Ellipsize = Pango.EllipsizeMode.End;

			hbox.PackStart (label, true, true, 0);
			var okButton = new Button (Gtk.Stock.Ok);
			okButton.WidthRequest = 60;
			hbox.PackEnd (okButton, false, false, 0); 

			var list = new List<string> ();
			list.Add (string.Format ("Convert to {0} line endings", GetEolString (textEditor.Options.DefaultEolMarker)));
			if (multiple)
				list.Add (string.Format ("Convert all files to {0} line endings", GetEolString (textEditor.Options.DefaultEolMarker)));
			list.Add (string.Format ("Keep {0} line endings", GetEolString (DetectedEolMarker)));
			if (multiple)
				list.Add (string.Format ("Keep {0} line endings in all files", GetEolString (DetectedEolMarker)));
			var combo = new ComboBox (list.ToArray ());
			combo.Active = 0;
			hbox.PackEnd (combo, false, false, 0);
			var container = new HBox ();
			const int containerPadding = 8;
			container.PackStart (hbox, true, true, containerPadding); 
			messageOverlayWindow.Child = container; 
			messageOverlayWindow.ShowOverlay (this.TextEditor);

			messageOverlayWindow.SizeFunc = () => {
				return okButton.SizeRequest ().Width +
					combo.SizeRequest ().Width +
					image.SizeRequest ().Width +
					w +
					hbox.Spacing * 4 + 
					containerPadding * 2;
			};
			image.Clicked += delegate {
				UseIncorrectMarkers = true;
				view.WorkbenchWindow.ShowNotification = false;
				RemoveMessageBar ();
			};
			okButton.Clicked += delegate {
				if (multiple) {
					switch (combo.Active) {
					case 0:
						ConvertLineEndings ();
						view.WorkbenchWindow.ShowNotification = false;
						view.Save (fileName, view.SourceEncoding);
						break;
					case 1:
						FileRegistry.ConvertLineEndingsInAllFiles ();
						break;
					case 2:
						UseIncorrectMarkers = true;
						view.WorkbenchWindow.ShowNotification = false;
						break;
					case 3:
						FileRegistry.IgnoreLineEndingsInAllFiles ();
						break;
					}
				} else {
					switch (combo.Active) {
					case 0:
						ConvertLineEndings ();
						view.WorkbenchWindow.ShowNotification = false;
						view.Save (fileName, view.SourceEncoding);
						break;
					case 1:
						UseIncorrectMarkers = true;
						view.WorkbenchWindow.ShowNotification = false;
						break;
					}
				}
				RemoveMessageBar ();
			};
		}

		void ShowIncorrectEolMarkers (string fileName, bool multiple)
		{
			RemoveMessageBar ();
			var hbox = new HBox ();
			hbox.Spacing = 8;

			var image = new HoverCloseButton ();
			hbox.PackStart (image, false, false, 0);
			var label = new Label (string.Format ("This file has line endings ({0}) which differ from the policy settings ({1}).", GetEolString (DetectedEolMarker), GetEolString (textEditor.Options.DefaultEolMarker)));
			var color = (HslColor)textEditor.ColorStyle.NotificationText.Foreground;
			label.ModifyFg (StateType.Normal, color);

			int w, h;
			label.Layout.GetPixelSize (out w, out h);
			label.Ellipsize = Pango.EllipsizeMode.End;

			hbox.PackStart (label, true, true, 0);
			var okButton = new Button (Gtk.Stock.Ok);
			okButton.WidthRequest = 60;

			// Small amount of vertical padding for the OK button.
			const int verticalPadding = 2;
			var vbox = new VBox ();
			vbox.PackEnd (okButton, true, true, verticalPadding);
			hbox.PackEnd (vbox, false, false, 0);

			var list = new List<string> ();
			list.Add (string.Format ("Convert to {0} line endings", GetEolString (textEditor.Options.DefaultEolMarker)));
			list.Add (string.Format ("Convert all files to {0} line endings", GetEolString (textEditor.Options.DefaultEolMarker)));
			list.Add (string.Format ("Keep {0} line endings", GetEolString (DetectedEolMarker)));
			list.Add (string.Format ("Keep {0} line endings in all files", GetEolString (DetectedEolMarker)));
			var combo = new ComboBox (list.ToArray ());
			combo.Active = 0;
			hbox.PackEnd (combo, false, false, 0);
			incorrectEolMessage = new HBox ();
			const int containerPadding = 8;
			incorrectEolMessage.PackStart (hbox, true, true, containerPadding); 

			// This is hacky, but it will ensure that our combo appears with with the correct size.
			GLib.Timeout.Add (100, delegate {
				combo.QueueResize ();
				return false;
			});

			AddOverlay (incorrectEolMessage, () => {
				return okButton.SizeRequest ().Width +
							   combo.SizeRequest ().Width +
							   image.SizeRequest ().Width +
							   w +
							   hbox.Spacing * 4 +
							   containerPadding * 2;
			});

			image.Clicked += delegate {
				UseIncorrectMarkers = true;
				view.WorkbenchWindow.ShowNotification = false;
				RemoveMessageBar ();
			};
			okButton.Clicked += delegate {
				switch (combo.Active) {
				case 0:
					ConvertLineEndings ();
					view.WorkbenchWindow.ShowNotification = false;
					view.Save (fileName, view.SourceEncoding);
					break;
				case 1:
					FileRegistry.ConvertLineEndingsInAllFiles ();
					break;
				case 2:
					UseIncorrectMarkers = true;
					view.WorkbenchWindow.ShowNotification = false;
					break;
				case 3:
					FileRegistry.IgnoreLineEndingsInAllFiles ();
					break;
				}
				RemoveMessageBar ();
			};
		}