Mercurial > pub > ImplabNet

annotate Implab.Fx/AnimationHelpers.cs @ 187:dd4a3590f9c6 ref20160224

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Reworked cancelation handling, if the cancel handler isn't specified the OperationCanceledException will be handled by the error handler Any unhandled OperationCanceledException will cause the promise cancelation
author cin
date Tue, 19 Apr 2016 17:35:20 +0300
parents d4e38929ce36
children
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1 using System;
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2 using System.Collections.Generic;
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3 using System.Linq;
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4 using System.Text;
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5 using System.Windows.Forms;
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6 using System.Diagnostics;
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7
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8 namespace Implab.Fx
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9 {
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10 public static class AnimationHelpers
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11 {
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12 public static Animation<TTarget> AnimateProperty<TTarget, TVal>(this Animation<TTarget> animation, Action<TTarget, TVal> setter, Func<TTarget, TVal> getter, TVal newValue, Func<TVal, TVal, int, int, TVal> fx) where TTarget : class
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13 {
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14 if (animation == null)
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15 throw new ArgumentNullException("animation");
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16
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17 TVal oldValue = getter(animation.Traget);
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18
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19 animation.Step += (target, elaped, duration) =>
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20 {
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21 var value = fx(oldValue, newValue, elaped, duration);
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22 setter(target, value);
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23 };
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24
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25 return animation;
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26 }
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27
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28 public static Animation<T> AnimateTransparency<T>(this T ctl, float newValue) where T : Form
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29 {
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30 var anim = new Animation<T>(ctl);
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31
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32 anim.AnimateProperty(
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33 (target, value) => target.Opacity = value,
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34 target => target.Opacity,
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35 newValue,
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36 (ov, nv, el, du) => ov + ((float)el / du) * (nv - ov)
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37 );
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38 return anim;
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39 }
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40
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41 public static IPromise<T> CloseFadeOut<T>(this T ctl) where T : Form
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42 {
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43 var anim = ctl.AnimateTransparency(0);
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44
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45 return anim
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46 .Play()
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47 .DispatchToControl(ctl)
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48 .Then(frm => {
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49 frm.Close();
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50 return frm;
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51 });
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52 }
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53
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54 public static IPromise<T> OverlayFadeIn<T>(this Form that, T overlay) where T : Form
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55 {
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56 if (that == null)
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57 throw new ArgumentNullException("that");
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58 if (overlay == null)
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59 throw new ArgumentNullException("overlay");
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60
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61 // setup overlay
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62 overlay.Opacity = 0;
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63 overlay.FormBorderStyle = FormBorderStyle.None;
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64 overlay.ShowInTaskbar = false;
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65
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66 that.AddOwnedForm(overlay);
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67
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68 EventHandler handler = (object sender, EventArgs args) =>
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69 {
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70 overlay.Bounds = that.RectangleToScreen(that.ClientRectangle);
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71 };
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72
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73 // attach handlers
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74 that.Move += handler;
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75 that.Resize += handler;
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76 that.Shown += handler;
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77
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78 // remove handlers to release overlay
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79 overlay.FormClosed += (sender, args) =>
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80 {
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81 that.Move -= handler;
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82 that.Resize -= handler;
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83 that.Shown -= handler;
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84 };
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85
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86 overlay.Show(that);
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87 overlay.Bounds = that.RectangleToScreen(that.ClientRectangle);
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88
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89 return overlay
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90 .AnimateTransparency(1)
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91 .Play()
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92 .DispatchToControl(overlay);
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93 }
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94 }
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95 }