#region License Information /* HeuristicLab * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * HeuristicLab is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with HeuristicLab. If not, see . */ #endregion using System; using System.Windows.Forms; using HeuristicLab.Common; using HeuristicLab.MainForm; using HeuristicLab.PluginInfrastructure; namespace HeuristicLab.Core.Views { /// /// The visual representation of a . /// [View("Variable View")] [Content(typeof(Variable), true)] [Content(typeof(IVariable), false)] public partial class VariableView : NamedItemView { protected TypeSelectorDialog typeSelectorDialog; /// /// Gets or sets the variable to represent visually. /// /// Uses property of base class . /// No own data storage present. public new IVariable Content { get { return (IVariable)base.Content; } set { base.Content = value; } } /// /// Initializes a new instance of with caption "Variable". /// public VariableView() { InitializeComponent(); } /// /// Clean up any resources being used. /// /// true if managed resources should be disposed; otherwise, false. protected override void Dispose(bool disposing) { if (disposing) { if (typeSelectorDialog != null) typeSelectorDialog.Dispose(); if (components != null) components.Dispose(); } base.Dispose(disposing); } /// /// Removes the eventhandlers from the underlying . /// /// Calls of base class . protected override void DeregisterContentEvents() { Content.ValueChanged -= new EventHandler(Content_ValueChanged); base.DeregisterContentEvents(); } /// /// Adds eventhandlers to the underlying . /// /// Calls of base class . protected override void RegisterContentEvents() { base.RegisterContentEvents(); Content.ValueChanged += new EventHandler(Content_ValueChanged); } protected override void OnContentChanged() { base.OnContentChanged(); if (Content == null) { dataTypeTextBox.Text = "-"; viewHost.Content = null; } else { dataTypeTextBox.Text = Content.Value == null ? "-" : Content.Value.GetType().GetPrettyName(); viewHost.ViewType = null; viewHost.Content = Content.Value; } } protected override void SetEnabledStateOfControls() { base.SetEnabledStateOfControls(); dataTypeTextBox.Enabled = Content != null && Content.Value != null; setValueButton.Enabled = Content != null && !ReadOnly; clearValueButton.Enabled = Content != null && Content.Value != null && !ReadOnly; valueGroupBox.Enabled = Content != null; } protected virtual void Content_ValueChanged(object sender, EventArgs e) { if (InvokeRequired) Invoke(new EventHandler(Content_ValueChanged), sender, e); else { dataTypeTextBox.Text = Content.Value == null ? "-" : Content.Value.GetType().GetPrettyName(); dataTypeTextBox.Enabled = Content.Value != null; clearValueButton.Enabled = Content.Value != null; viewHost.ViewType = null; viewHost.Content = Content.Value; } } protected virtual void setValueButton_Click(object sender, EventArgs e) { if (typeSelectorDialog == null) { typeSelectorDialog = new TypeSelectorDialog(); typeSelectorDialog.Caption = "Select Value"; typeSelectorDialog.TypeSelector.Configure(typeof(IItem), false, true); } if (typeSelectorDialog.ShowDialog(this) == DialogResult.OK) { try { Content.Value = (IItem)typeSelectorDialog.TypeSelector.CreateInstanceOfSelectedType(); } catch (Exception ex) { ErrorHandling.ShowErrorDialog(this, ex); } } } protected virtual void clearValueButton_Click(object sender, EventArgs e) { Content.Value = null; } protected virtual void valuePanel_DragEnterOver(object sender, DragEventArgs e) { e.Effect = DragDropEffects.None; if (!ReadOnly && (e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat) is IItem)) { if ((e.KeyState & 32) == 32) e.Effect = DragDropEffects.Link; // ALT key else if ((e.KeyState & 4) == 4) e.Effect = DragDropEffects.Move; // SHIFT key else if (e.AllowedEffect.HasFlag(DragDropEffects.Copy)) e.Effect = DragDropEffects.Copy; else if (e.AllowedEffect.HasFlag(DragDropEffects.Move)) e.Effect = DragDropEffects.Move; else if (e.AllowedEffect.HasFlag(DragDropEffects.Link)) e.Effect = DragDropEffects.Link; } } protected virtual void valuePanel_DragDrop(object sender, DragEventArgs e) { if (e.Effect != DragDropEffects.None) { IItem item = e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat) as IItem; if (e.Effect.HasFlag(DragDropEffects.Copy)) item = (IItem)item.Clone(); Content.Value = item; } } } }