[14162] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[17226] | 3 | * Copyright (C) Joseph Helm and Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[14162] | 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.Windows;
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| 24 | using System.Windows.Media;
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| 25 | using HeuristicLab.Problems.BinPacking2D;
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| 26 | using Point = System.Windows.Point;
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| 27 | using Size = System.Windows.Size;
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| 28 | using UserControl = System.Windows.Controls.UserControl;
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| 29 |
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| 30 | namespace HeuristicLab.Problems.BinPacking.Views {
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| 31 | public partial class Container2DView : UserControl {
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| 32 | private int selectedItemKey;
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| 33 | private Size renderSize;
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| 34 | private BinPacking<BinPacking2D.PackingPosition, PackingShape, PackingItem> packing;
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| 35 | public BinPacking<BinPacking2D.PackingPosition, PackingShape, PackingItem> Packing {
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| 36 | get { return packing; }
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| 37 | set {
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| 38 | if (packing != value) {
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| 39 | this.packing = value;
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| 40 | ClearSelection(); // also updates visualization
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| 41 | }
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| 42 | }
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| 43 | }
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| 44 |
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| 45 | public Container2DView() {
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| 46 | InitializeComponent();
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| 47 | }
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| 48 |
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| 49 |
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| 50 | protected override void OnRenderSizeChanged(SizeChangedInfo sizeInfo) {
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| 51 | base.OnRenderSizeChanged(sizeInfo);
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| 52 | var s = Math.Min(sizeInfo.NewSize.Height, sizeInfo.NewSize.Width);
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| 53 | renderSize = new Size(s, s);
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| 54 | InvalidateVisual();
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| 55 | }
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| 56 |
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| 57 | // similar implementation to Container3DView (even though item selection is not supported for 2d packings TODO)
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| 58 | public void SelectItem(int itemKey) {
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| 59 | // selection of an item should make all other items semi-transparent
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| 60 | selectedItemKey = itemKey;
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| 61 | InvalidateVisual();
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| 62 | }
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| 63 | public void ClearSelection() {
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| 64 | // remove all transparency
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| 65 | selectedItemKey = -1;
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| 66 | InvalidateVisual();
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| 67 | }
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| 68 |
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| 69 | protected override void OnRender(DrawingContext drawingContext) {
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| 70 | base.OnRender(drawingContext);
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| 71 | if (packing == null) return;
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| 72 | // the container should fill the whole size
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| 73 | var scalingX = renderSize.Width / Packing.BinShape.Width;
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| 74 | var scalingY = renderSize.Height / Packing.BinShape.Width;
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| 75 | // draw container
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| 76 | drawingContext.DrawRectangle(Brushes.LightGray, new Pen(Brushes.Black, 1), new Rect(new Point(0, 0), renderSize));
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| 77 |
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| 78 | var selectedBrush = Brushes.MediumSeaGreen;
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| 79 | var unselectedBrush = selectedItemKey < 0 ? selectedBrush : Brushes.DarkGray;
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| 80 |
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| 81 | foreach (var t in Packing.Items) {
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| 82 | var key = t.Key;
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| 83 | var item = t.Value;
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| 84 | var pos = Packing.Positions[key];
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| 85 |
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| 86 | var scaledPos = new Point(pos.X * scalingX, pos.Y * scalingY);
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| 87 |
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| 88 | var scaledSize = pos.Rotated ?
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| 89 | new Size(item.Height * scalingX, item.Width * scalingY) :
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| 90 | new Size(item.Width * scalingX, item.Height * scalingY);
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| 91 |
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| 92 | var brush = key == selectedItemKey ? selectedBrush : unselectedBrush;
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| 93 | drawingContext.DrawRectangle(brush, new Pen(Brushes.Black, 1), new Rect(scaledPos, scaledSize));
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| 94 | }
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| 95 | }
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| 96 | }
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| 97 | }
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