fade with black backward play

git-svn-id: svn://192.168.3.15/activex/AVS/Sources/TeamlabOffice/trunk/OfficeWeb@60246 954022d7-b5bf-4e40-9824-e11837661b57

PowerPoint/Drawing/Transitions.js

@@ -392,6 +392,8 @@ function CTransitionAnimation(htmlpage)
                 _ctx1.fillRect(0, 0, oThis.DemonstrationObject.Canvas.width, oThis.DemonstrationObject.Canvas.height);
             }
 
+            if (!oThis.IsBackward)
+            {
                 if (null != oThis.CacheImage1.Image)
                 {
                     _ctx1.drawImage(oThis.CacheImage1.Image, oThis.Rect.x, oThis.Rect.y, oThis.Rect.w, oThis.Rect.h);
@@ -404,6 +406,13 @@ function CTransitionAnimation(htmlpage)
                     _ctx1.beginPath();
                 }
             }
+            else
+            {
+                _ctx1.fillStyle = "rgb(0,0,0)";
+                _ctx1.fillRect(oThis.Rect.x, oThis.Rect.y, oThis.Rect.w, oThis.Rect.h);
+                _ctx1.beginPath();
+            }
+        }
 
         var _ctx2 = null;
         if (oThis.DemonstrationObject == null)
@@ -442,6 +451,8 @@ function CTransitionAnimation(htmlpage)
             _ctx2.globalAlpha = 1;
         }
         else if (oThis.Param == c_oAscSlideTransitionParams.Fade_Through_Black)
+        {
+            if (!oThis.IsBackward)
             {
                 if (oThis.Params.IsFirstAfterHalf)
                 {
@@ -489,6 +500,64 @@ function CTransitionAnimation(htmlpage)
                         _ctx2.beginPath();
                     }
                 }
+            }
+            else
+            {
+                if (oThis.Params.IsFirstAfterHalf)
+                {
+                    if (_part < 0.5)
+                    {
+                        var _ctx1 = null;
+                        if (null == oThis.DemonstrationObject)
+                        {
+                            // отрисовываем на основной канве картинку первого слайда
+                            _ctx1 = oThis.HtmlPage.m_oEditor.HtmlElement.getContext('2d');
+                        }
+                        else
+                        {
+                            _ctx1 = oThis.DemonstrationObject.Canvas.getContext('2d');
+                        }
+
+                        if (null != oThis.CacheImage1.Image)
+                        {
+                            _ctx1.drawImage(oThis.CacheImage1.Image, oThis.Rect.x, oThis.Rect.y, oThis.Rect.w, oThis.Rect.h);
+                        }
+                        else
+                        {
+                            var _c = oThis.CacheImage1.Color;
+                            _ctx1.fillStyle = "rgb(" + _c.r + "," + _c.g + "," + _c.b + ")";
+                            _ctx1.fillRect(oThis.Rect.x, oThis.Rect.y, oThis.Rect.w, oThis.Rect.h);
+                            _ctx1.beginPath();
+                        }
+
+                        oThis.Params.IsFirstAfterHalf = false;
+                    }
+                }
+
+                if (!oThis.Params.IsFirstAfterHalf)
+                {
+                    _ctx2.globalAlpha = (2 * _part);
+                    _ctx2.fillStyle = "rgb(0,0,0)";
+                    _ctx2.fillRect(oThis.Rect.x, oThis.Rect.y, oThis.Rect.w, oThis.Rect.h);
+                    _ctx2.beginPath();
+                }
+                else
+                {
+                    _ctx2.globalAlpha = (2 * (_part - 0.5));
+
+                    if (null != oThis.CacheImage2.Image)
+                    {
+                        _ctx2.drawImage(oThis.CacheImage2.Image, oThis.Rect.x, oThis.Rect.y, oThis.Rect.w, oThis.Rect.h);
+                    }
+                    else
+                    {
+                        var _c = oThis.CacheImage2.Color;
+                        _ctx2.fillStyle = "rgb(" + _c.r + "," + _c.g + "," + _c.b + ")";
+                        _ctx2.fillRect(oThis.Rect.x, oThis.Rect.y, oThis.Rect.w, oThis.Rect.h);
+                        _ctx2.beginPath();
+                    }
+                }
+            }
 
             _ctx2.globalAlpha = 1;
         }