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Posted By

dhjapan on 03/07/08


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scroll as


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scrollmc

Published in: ActionScript 

Plain TextExpand 
  1. /*
  2.  * _scrollmc( mc:MovieClip, mask:MovieClip )
  3.  *
  4.  * Rend un clip scrollable comme un champ texte
  5.  *
  6.  * 01/06/05 - Philippe
  7.  *
  8.  */
  9. _global._scrollmc = function(mc, mask, scroll_track, scroll_bar) {
  10. 	trace(mc+", "+mask);
  11. 	// evenements
  12. 	ASBroadcaster.initialize(mc);
  13.  
  14. 	// proprietes
  15. 	mc.setMask(mask);
  16. 	mc.mask = mask;
  17. 	mc.oy = mc._y;
  18. 	mc.scroll = 1;
  19. 	mc.bottomScroll = mask._height;
  20. 	mc.maxscroll = mc._height-mask._height;
  21.  
  22. 	mc.scroll_track = scroll_track;
  23. 	mc.scroll_bar = scroll_bar;
  24. 	scroll_bar.oy = scroll_bar._y;
  25. 	scroll_bar._height = (scroll_track._height * mask._height) / mc._height;
  26.  
  27. 	//***********************  scroll avec la bar
  28. 	scroll_bar.mc = mc;
  29. 	scroll_bar.scroll_track = scroll_track;
  30. 	scroll_bar.scroll_bar = scroll_bar;
  31. 	scroll_bar.onRelease = function(){ delete this.onEnterFrame; }
  32. 	scroll_bar.onReleaseOutside = scroll_bar.onRelease;
  33. 	scroll_bar.onPress = function(){
  34. 		this.mouse_oy = _root._ymouse - this._y;
  35. 		trace(this.mouse_oy);
  36. 		scroll_bar.onEnterFrame = function(){
  37. 			this._y += ( Math.min(Math.max(_root._ymouse-this.mouse_oy, this.scroll_track._y) , this.scroll_track._y + this.scroll_track._height - this._height) - this._y ) * .5;
  38. 			var new_scroll = ((this._y - this.scroll_bar.oy) * this.mc.maxscroll) / (this.scroll_track._height-this._height);
  39. 			this.mc.scroll = new_scroll;
  40. 		}
  41. 	}
  42.  
  43.  
  44. 	// reactivite de la propriete scroll
  45. 	mc.addProperty("scroll",
  46. 		function() {
  47. 			return Math.min( Math.max(1,this.scroll), this.maxscroll);
  48. 		},
  49. 		function(value) {
  50. 			// verification valeur
  51. 			value = Math.round(value);
  52. 			value = Math.min( Math.max(1,value), this.maxscroll);
  53. 			if (value == this.scroll) return;
  54. 			// maj
  55. 			this.scroll = value;
  56. 			// scrollbar
  57. 			var new_scroll_bar_y = this.scroll_bar.oy + Math.round(this.scroll * (this.scroll_track._height-this.scroll_bar._height) / this.maxscroll);
  58. 			this.scroll_bar._y = new_scroll_bar_y;
  59. 			// /scrollbar
  60. 			this._y = this.oy-value;
  61. 			this.maxscroll = Math.max(1, this._height+4 - this.mask._height);
  62. 			this.bottomScroll = value + this.mask._height;
  63. 			this._y = this.oy-value;
  64. 			// retour
  65. 			this.broadcastMessage("onScroller", this);
  66. 		}
  67. 	)
  68.  
  69. 	trace(mc.scroll+" "+mc.maxscroll);
  70. }

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