[725] | 1 | using System.Drawing;
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[1045] | 2 | using System.Windows.Forms;
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[725] | 3 |
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| 4 | namespace HeuristicLab.Visualization {
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[1045] | 5 | public interface IMouseEventListener {
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| 6 | void MouseMove(object sender, MouseEventArgs e);
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| 7 | void MouseUp(object sender, MouseEventArgs e);
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[863] | 8 |
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[1045] | 9 | event MouseEventHandler OnMouseMove;
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| 10 | event MouseEventHandler OnMouseUp;
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| 11 | }
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[725] | 12 |
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[1045] | 13 | public delegate void SetNewClippingAreaHandler(RectangleD newClippingArea);
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[725] | 14 |
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[1045] | 15 | public delegate void DrawRectangleHandler(Rectangle rectangle);
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| 16 |
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| 17 | public class PanListener : IMouseEventListener {
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| 18 | private readonly Rectangle viewPort;
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| 19 | private readonly RectangleD clippingArea;
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| 20 | private readonly Point startPoint;
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| 21 |
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| 22 | public PanListener(Rectangle viewPort, RectangleD clippingArea, Point startPoint) {
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| 23 | this.viewPort = viewPort;
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| 24 | this.clippingArea = clippingArea;
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| 25 | this.startPoint = startPoint;
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| 26 | }
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| 27 |
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| 28 | #region IMouseEventListener Members
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| 29 |
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| 30 | public event SetNewClippingAreaHandler SetNewClippingArea;
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| 31 | public event MouseEventHandler OnMouseMove;
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| 32 | public event MouseEventHandler OnMouseUp;
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| 33 |
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| 34 | public void MouseMove(object sender, MouseEventArgs e) {
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| 35 | PointD worldStartPoint = Transform.ToWorld(startPoint, viewPort, clippingArea);
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| 36 | PointD worldActualPoint = Transform.ToWorld(e.Location, viewPort, clippingArea);
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| 37 |
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| 38 | double xDiff = worldActualPoint.X - worldStartPoint.X;
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| 39 | double yDiff = worldActualPoint.Y - worldStartPoint.Y;
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| 40 |
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| 41 | RectangleD newClippingArea = new RectangleD();
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| 42 | newClippingArea.X1 = clippingArea.X1 - xDiff;
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| 43 | newClippingArea.X2 = clippingArea.X2 - xDiff;
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| 44 | newClippingArea.Y1 = clippingArea.Y1 - yDiff;
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| 45 | newClippingArea.Y2 = clippingArea.Y2 - yDiff;
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| 46 |
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| 47 | if (SetNewClippingArea != null) {
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| 48 | SetNewClippingArea(newClippingArea);
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| 49 | }
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| 50 |
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[725] | 51 | if (OnMouseMove != null) {
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[1045] | 52 | OnMouseMove(sender, e);
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[725] | 53 | }
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| 54 | }
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| 55 |
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[1045] | 56 | public void MouseUp(object sender, MouseEventArgs e) {
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[725] | 57 | if (OnMouseUp != null) {
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[1045] | 58 | OnMouseUp(sender, e);
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[725] | 59 | }
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| 60 | }
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| 61 |
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[1045] | 62 | #endregion
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| 63 | }
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| 64 |
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| 65 | public class ZoomListener : IMouseEventListener {
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| 66 | private readonly Point startPoint;
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| 67 |
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| 68 | public event DrawRectangleHandler DrawRectangle;
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| 69 |
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| 70 | public ZoomListener(Point startPoint) {
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| 71 | this.startPoint = startPoint;
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[725] | 72 | }
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[1045] | 73 |
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| 74 | #region IMouseEventListener Members
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| 75 |
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| 76 | public event MouseEventHandler OnMouseMove;
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| 77 | public event MouseEventHandler OnMouseUp;
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| 78 |
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| 79 | public void MouseMove(object sender, MouseEventArgs e) {
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| 80 | Rectangle r = new Rectangle();
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| 81 | Point actualPoint = e.Location;
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| 82 |
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| 83 | if (startPoint.X < actualPoint.X) {
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| 84 | r.X = startPoint.X;
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| 85 | r.Width = actualPoint.X - startPoint.X;
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| 86 | } else {
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| 87 | r.X = actualPoint.X;
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| 88 | r.Width = startPoint.X - actualPoint.X;
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| 89 | }
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| 90 |
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| 91 | if (startPoint.Y < actualPoint.Y) {
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| 92 | r.Y = startPoint.Y;
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| 93 | r.Height = actualPoint.Y - startPoint.Y;
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| 94 | } else {
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| 95 | r.Y = actualPoint.Y;
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| 96 | r.Height = startPoint.Y - actualPoint.Y;
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| 97 | }
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| 98 |
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| 99 | if(DrawRectangle != null) {
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| 100 | DrawRectangle(r);
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| 101 | }
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| 102 |
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| 103 | if (OnMouseMove != null) {
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| 104 | OnMouseMove(sender, e);
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| 105 | }
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| 106 | }
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| 107 |
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| 108 | public void MouseUp(object sender, MouseEventArgs e) {
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| 109 | if (OnMouseUp != null) {
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| 110 | OnMouseUp(sender, e);
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| 111 | }
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| 112 | }
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| 113 |
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| 114 | #endregion
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[725] | 115 | }
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[724] | 116 | } |
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