[4641] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[15583] | 3 | * Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[4641] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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| 23 | using System.Linq;
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| 24 | using System.Threading;
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| 25 | using System.Windows.Forms;
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| 26 | using HeuristicLab.Collections;
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| 27 | using HeuristicLab.MainForm;
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| 28 | using HeuristicLab.MainForm.WindowsForms;
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| 29 |
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| 30 | namespace HeuristicLab.Core.Views {
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| 31 | [View("Movie View")]
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| 32 | public partial class MovieView<T> : ItemView where T : class, IItem {
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[4715] | 33 | #region Delay
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| 34 | protected class Delay {
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| 35 | public string Text { get; private set; }
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| 36 | public int Milliseconds { get; private set; }
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| 37 |
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| 38 | public Delay(string text, int milliseconds) {
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| 39 | Text = text;
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| 40 | Milliseconds = milliseconds;
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| 41 | }
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| 42 |
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| 43 | public override string ToString() {
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| 44 | return Text;
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| 45 | }
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| 46 | }
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| 47 | #endregion
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| 48 |
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| 49 | protected int delay;
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| 50 |
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[4641] | 51 | public new IItemCollection<T> Content {
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| 52 | get { return (IItemCollection<T>)base.Content; }
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| 53 | set { base.Content = value; }
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| 54 | }
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| 55 |
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| 56 | public MovieView() {
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| 57 | InitializeComponent();
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[4715] | 58 |
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| 59 | delayComboBox.Items.Add(new Delay("5s", 5000));
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| 60 | delayComboBox.Items.Add(new Delay("2s", 2000));
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| 61 | delayComboBox.Items.Add(new Delay("1s", 1000));
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| 62 | delayComboBox.Items.Add(new Delay("0.5s", 500));
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| 63 | delayComboBox.Items.Add(new Delay("0.1s", 100));
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| 64 | delayComboBox.Items.Add(new Delay("0.05s", 50));
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| 65 | delayComboBox.Items.Add(new Delay("0.01s", 10));
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| 66 | delayComboBox.SelectedIndex = 4;
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| 67 | delay = 100;
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[4641] | 68 | }
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| 69 |
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| 70 | protected override void DeregisterContentEvents() {
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| 71 | Content.ItemsAdded -= new CollectionItemsChangedEventHandler<T>(Content_ItemsAdded);
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| 72 | Content.ItemsRemoved -= new CollectionItemsChangedEventHandler<T>(Content_ItemsRemoved);
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| 73 | Content.CollectionReset -= new CollectionItemsChangedEventHandler<T>(Content_CollectionReset);
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| 74 | base.DeregisterContentEvents();
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| 75 | }
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| 76 | protected override void RegisterContentEvents() {
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| 77 | base.RegisterContentEvents();
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| 78 | Content.ItemsAdded += new CollectionItemsChangedEventHandler<T>(Content_ItemsAdded);
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| 79 | Content.ItemsRemoved += new CollectionItemsChangedEventHandler<T>(Content_ItemsRemoved);
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| 80 | Content.CollectionReset += new CollectionItemsChangedEventHandler<T>(Content_CollectionReset);
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| 81 | }
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| 82 |
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| 83 | protected override void OnContentChanged() {
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| 84 | base.OnContentChanged();
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| 85 | if (backgroundWorker.IsBusy) backgroundWorker.CancelAsync();
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| 86 | if (Content == null) {
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| 87 | trackBar.Maximum = 10;
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| 88 | viewHost.Content = null;
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| 89 | } else {
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| 90 | Caption += " (" + Content.GetType().Name + ")";
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| 91 | trackBar.Maximum = Content.Count - 1;
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| 92 | viewHost.Content = Content.FirstOrDefault();
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| 93 | }
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| 94 | trackBar.Value = 0;
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| 95 | UpdateLables();
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| 96 | }
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| 97 |
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| 98 | protected override void SetEnabledStateOfControls() {
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| 99 | base.SetEnabledStateOfControls();
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[4715] | 100 | firstButton.Enabled = (Content != null) && (Content.Count > 0) && (trackBar.Value != trackBar.Minimum) && (!backgroundWorker.IsBusy);
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| 101 | previousButton.Enabled = (Content != null) && (Content.Count > 0) && (trackBar.Value != trackBar.Minimum) && (!backgroundWorker.IsBusy);
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[4641] | 102 | trackBar.Enabled = (Content != null) && (Content.Count > 0) && (!backgroundWorker.IsBusy);
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[4715] | 103 | nextButton.Enabled = (Content != null) && (Content.Count > 0) && (trackBar.Value != trackBar.Maximum) && (!backgroundWorker.IsBusy);
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| 104 | lastButton.Enabled = (Content != null) && (Content.Count > 0) && (trackBar.Value != trackBar.Maximum) && (!backgroundWorker.IsBusy);
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[4641] | 105 | playButton.Enabled = (Content != null) && (Content.Count > 0) && (!backgroundWorker.IsBusy);
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| 106 | stopButton.Enabled = (Content != null) && (backgroundWorker.IsBusy);
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[4715] | 107 | delayComboBox.Enabled = (Content != null) && (Content.Count > 0);
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[4641] | 108 | }
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| 109 |
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| 110 | protected override void OnClosed(FormClosedEventArgs e) {
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| 111 | base.OnClosed(e);
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| 112 | if (backgroundWorker.IsBusy) backgroundWorker.CancelAsync();
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| 113 | }
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| 114 |
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| 115 | #region Content Events
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| 116 | protected virtual void Content_ItemsAdded(object sender, CollectionItemsChangedEventArgs<T> e) {
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| 117 | if (InvokeRequired)
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| 118 | Invoke(new CollectionItemsChangedEventHandler<T>(Content_ItemsAdded), sender, e);
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| 119 | else {
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| 120 | trackBar.Maximum = Content.Count - 1;
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| 121 | maximumLabel.Text = trackBar.Maximum.ToString();
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[4715] | 122 | if (viewHost.Content == null) viewHost.Content = Content.FirstOrDefault();
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| 123 | SetEnabledStateOfControls();
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[4641] | 124 | }
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| 125 | }
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| 126 | protected virtual void Content_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<T> e) {
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| 127 | if (InvokeRequired)
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| 128 | Invoke(new CollectionItemsChangedEventHandler<T>(Content_ItemsRemoved), sender, e);
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| 129 | else {
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| 130 | trackBar.Maximum = Content.Count - 1;
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| 131 | maximumLabel.Text = trackBar.Maximum.ToString();
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| 132 | if (e.Items.Contains((T)viewHost.Content)) {
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| 133 | trackBar.Value = 0;
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| 134 | viewHost.Content = Content.FirstOrDefault();
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| 135 | UpdateLables();
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| 136 | }
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[4715] | 137 | SetEnabledStateOfControls();
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[4641] | 138 | }
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| 139 | }
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| 140 | protected virtual void Content_CollectionReset(object sender, CollectionItemsChangedEventArgs<T> e) {
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| 141 | if (InvokeRequired)
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| 142 | Invoke(new CollectionItemsChangedEventHandler<T>(Content_CollectionReset), sender, e);
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| 143 | else {
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| 144 | trackBar.Maximum = Content.Count - 1;
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| 145 | trackBar.Value = 0;
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| 146 | viewHost.Content = Content.FirstOrDefault();
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| 147 | UpdateLables();
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| 148 | SetEnabledStateOfControls();
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| 149 | }
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| 150 | }
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| 151 | #endregion
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| 152 |
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| 153 | #region Control Events
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| 154 | protected virtual void trackBar_ValueChanged(object sender, EventArgs e) {
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[4715] | 155 | viewHost.Content = Content == null ? null : Content.ElementAtOrDefault(trackBar.Value);
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[4641] | 156 | indexLabel.Text = trackBar.Value.ToString();
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[4715] | 157 | SetEnabledStateOfControls();
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[4641] | 158 | }
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| 159 | protected virtual void firstButton_Click(object sender, EventArgs e) {
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[4715] | 160 | if (trackBar.Value != trackBar.Minimum) trackBar.Value = trackBar.Minimum;
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[4641] | 161 | }
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[4715] | 162 | protected virtual void previousButton_Click(object sender, EventArgs e) {
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| 163 | if (trackBar.Value != trackBar.Minimum) trackBar.Value--;
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| 164 | }
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| 165 | protected virtual void nextButton_Click(object sender, EventArgs e) {
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| 166 | if (trackBar.Value != trackBar.Maximum) trackBar.Value++;
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| 167 | }
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[4641] | 168 | protected virtual void lastButton_Click(object sender, EventArgs e) {
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[4715] | 169 | if (trackBar.Value != trackBar.Maximum) trackBar.Value = trackBar.Maximum;
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[4641] | 170 | }
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| 171 | protected virtual void playButton_Click(object sender, EventArgs e) {
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| 172 | firstButton.Enabled = false;
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[4715] | 173 | previousButton.Enabled = false;
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[4641] | 174 | trackBar.Enabled = false;
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[4715] | 175 | nextButton.Enabled = false;
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[4641] | 176 | lastButton.Enabled = false;
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| 177 | playButton.Enabled = false;
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| 178 | stopButton.Enabled = true;
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| 179 | backgroundWorker.RunWorkerAsync();
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| 180 | }
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| 181 | protected virtual void stopButton_Click(object sender, EventArgs e) {
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[4715] | 182 | stopButton.Enabled = false;
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[4641] | 183 | backgroundWorker.CancelAsync();
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| 184 | }
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[4715] | 185 | protected virtual void delayComboBox_SelectedIndexChanged(object sender, EventArgs e) {
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| 186 | Delay selected = delayComboBox.SelectedItem as Delay;
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| 187 | if (selected != null) delay = selected.Milliseconds;
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| 188 | }
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[4641] | 189 | #endregion
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| 190 |
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| 191 | #region BackgroundWorker Events
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| 192 | protected virtual void backgroundWorker_DoWork(object sender, System.ComponentModel.DoWorkEventArgs e) {
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| 193 | bool terminate = false;
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| 194 | while (!backgroundWorker.CancellationPending && !terminate) {
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| 195 | Invoke((Action)delegate() {
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| 196 | if (trackBar.Value < trackBar.Maximum) trackBar.Value++;
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| 197 | terminate = trackBar.Value == trackBar.Maximum;
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| 198 | });
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[4715] | 199 | Thread.Sleep(delay);
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[4641] | 200 | }
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| 201 | }
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| 202 | protected virtual void backgroundWorker_RunWorkerCompleted(object sender, System.ComponentModel.RunWorkerCompletedEventArgs e) {
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| 203 | firstButton.Enabled = true;
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[4715] | 204 | previousButton.Enabled = true;
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[4641] | 205 | trackBar.Enabled = true;
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[4715] | 206 | nextButton.Enabled = true;
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[4641] | 207 | lastButton.Enabled = true;
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| 208 | playButton.Enabled = true;
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| 209 | stopButton.Enabled = false;
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| 210 | }
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| 211 | #endregion
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| 212 |
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| 213 | #region Helpers
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| 214 | protected virtual void UpdateLables() {
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| 215 | minimumLabel.Text = trackBar.Minimum.ToString();
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| 216 | indexLabel.Text = trackBar.Value.ToString();
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| 217 | maximumLabel.Text = trackBar.Maximum.ToString();
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| 218 | }
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| 219 | #endregion
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| 220 | }
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| 221 | }
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