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public static Intersect ( |
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/// <summary>
/// Draw the background image of the given box in the given rectangle.<br/>
/// Handle background-repeat and background-position values.
/// </summary>
/// <param name="g">the device to draw into</param>
/// <param name="box">the box to draw its background image</param>
/// <param name="imageLoadHandler">the handler that loads image to draw</param>
/// <param name="rectangle">the rectangle to draw image in</param>
public static void DrawBackgroundImage(Canvas g, CssBox box, ImageBinder imageBinder, RectangleF rectangle)
{
var image = imageBinder.Image;
//temporary comment image scale code
var imgSize = image.Size;
//new Size(imageLoadHandler.Rectangle == Rectangle.Empty ? imageLoadHandler.Image.Width : imageLoadHandler.Rectangle.Width,
// imageLoadHandler.Rectangle == Rectangle.Empty ? imageLoadHandler.Image.Height : imageLoadHandler.Rectangle.Height);
// get the location by BackgroundPosition value
var location = GetLocation(box.BackgroundPositionX, box.BackgroundPositionY, rectangle, imgSize);
//var srcRect = imageLoadHandler.Rectangle == Rectangle.Empty
// ? new Rectangle(0, 0, imgSize.Width, imgSize.Height)
// : new Rectangle(imageLoadHandler.Rectangle.Left, imageLoadHandler.Rectangle.Top, imgSize.Width, imgSize.Height);
var srcRect = new Rectangle(0, 0, image.Width, image.Height);
// initial image destination rectangle
var destRect = new Rectangle(location, imgSize);
// need to clip so repeated image will be cut on rectangle
var prevClip = g.CurrentClipRect;
PixelFarm.Drawing.Rectangle copyRect = new PixelFarm.Drawing.Rectangle(
(int)rectangle.X,
(int)rectangle.Y,
(int)rectangle.Width,
(int)rectangle.Height);
copyRect.Intersect(prevClip);
g.SetClipRect(copyRect);
switch (box.BackgroundRepeat)
{
case CssBackgroundRepeat.NoRepeat:
g.DrawImage(image, new RectangleF(location, imgSize), new RectangleF(0, 0, image.Width, image.Height));
break;
case CssBackgroundRepeat.RepeatX:
DrawRepeatX(g, image, rectangle, srcRect, destRect, imgSize);
break;
case CssBackgroundRepeat.RepeatY:
DrawRepeatY(g, image, rectangle, srcRect, destRect, imgSize);
break;
default:
DrawRepeat(g, image, rectangle, srcRect, destRect, imgSize);
break;
}
g.SetClipRect(prevClip);
}
/// <summary>
/// Draw the background image of the given box in the given rectangle.<br/>
/// Handle background-repeat and background-position values.
/// </summary>
/// <param name="g">the device to draw into</param>
/// <param name="box">the box to draw its background image</param>
/// <param name="imageLoadHandler">the handler that loads image to draw</param>
/// <param name="rectangle">the rectangle to draw image in</param>
public static void DrawBackgroundImage(Canvas g, CssBox box, ImageBinder imageBinder, RectangleF rectangle)
{
var image = imageBinder.Image;
//temporary comment image scale code
var imgSize = image.Size;
//new Size(imageLoadHandler.Rectangle == Rectangle.Empty ? imageLoadHandler.Image.Width : imageLoadHandler.Rectangle.Width,
// imageLoadHandler.Rectangle == Rectangle.Empty ? imageLoadHandler.Image.Height : imageLoadHandler.Rectangle.Height);
// get the location by BackgroundPosition value
var location = GetLocation(box.BackgroundPositionX, box.BackgroundPositionY, rectangle, imgSize);
//var srcRect = imageLoadHandler.Rectangle == Rectangle.Empty
// ? new Rectangle(0, 0, imgSize.Width, imgSize.Height)
// : new Rectangle(imageLoadHandler.Rectangle.Left, imageLoadHandler.Rectangle.Top, imgSize.Width, imgSize.Height);
var srcRect = new Rectangle(0, 0, image.Width, image.Height);
// initial image destination rectangle
var destRect = new Rectangle(location, imgSize);
// need to clip so repeated image will be cut on rectangle
var prevClip = g.CurrentClipRect;
PixelFarm.Drawing.Rectangle copyRect = new PixelFarm.Drawing.Rectangle(
(int)rectangle.X,
(int)rectangle.Y,
(int)rectangle.Width,
(int)rectangle.Height);
copyRect.Intersect(prevClip);
g.SetClipRect(copyRect);
switch (box.BackgroundRepeat)
{
case CssBackgroundRepeat.NoRepeat:
g.DrawImage(image, new RectangleF(location, imgSize), new RectangleF(0, 0, image.Width, image.Height));
break;
case CssBackgroundRepeat.RepeatX:
DrawRepeatX(g, image, rectangle, srcRect, destRect, imgSize);
break;
case CssBackgroundRepeat.RepeatY:
DrawRepeatY(g, image, rectangle, srcRect, destRect, imgSize);
break;
default:
DrawRepeat(g, image, rectangle, srcRect, destRect, imgSize);
break;
}
g.SetClipRect(prevClip);
}
public void InvalidateGraphicArea(RenderElement fromElement, ref Rectangle elemClientRect)
{
//total bounds = total bounds at level
if (this.IsInRenderPhase) { return; }
//--------------------------------------
//bubble up ,find global rect coord
//and then merge to accumulate rect
//int globalX = 0;
//int globalY = 0;
Point globalPoint = new Point();
bool isBubbleUp = false;
#if DEBUG
int dbug_ncount = 0;
dbugWriteStopGfxBubbleUp(fromElement, ref dbug_ncount, dbug_ncount, ">> :" + elemClientRect.ToString());
#endif
do
{
if (!fromElement.Visible)
{
#if DEBUG
dbugWriteStopGfxBubbleUp(fromElement, ref dbug_ncount, 0, "EARLY-RET: ");
#endif
return;
}
else if (fromElement.BlockGraphicUpdateBubble)
{
#if DEBUG
dbugWriteStopGfxBubbleUp(fromElement, ref dbug_ncount, 0, "BLOCKED2: ");
#endif
return;
}
//---------------------------------------------------------------------
#if DEBUG
dbugWriteStopGfxBubbleUp(fromElement, ref dbug_ncount, dbug_ncount, ">> ");
#endif
globalPoint.Offset(fromElement.X, fromElement.Y);
//globalX += fromElement.BubbleUpX;
//globalY += fromElement.BubbleUpY;
if (fromElement.MayHasViewport && isBubbleUp)
{
//elemClientRect.Offset(globalX, globalY);
elemClientRect.Offset(globalPoint);
if (fromElement.HasDoubleScrollableSurface)
{
//container.VisualScrollableSurface.WindowRootNotifyInvalidArea(elementClientRect);
}
Rectangle elementRect = fromElement.RectBounds;
elementRect.Offset(fromElement.ViewportX, fromElement.ViewportY);
elemClientRect.Intersect(elementRect);
globalPoint.X = -fromElement.ViewportX;
globalPoint.Y = -fromElement.ViewportY;
//globalX = -fromElement.ViewportX;
//globalY = -fromElement.ViewportY;
}
if (fromElement.IsTopWindow)
{
break;
}
else
{
#if DEBUG
if (fromElement.dbugParentVisualElement == null)
{
dbugWriteStopGfxBubbleUp(fromElement, ref dbug_ncount, 0, "BLOCKED3: ");
}
#endif
var parentLink = fromElement.MyParentLink;
if (parentLink == null)
{
return;
}
parentLink.AdjustLocation(ref globalPoint);
//move up
fromElement = parentLink.ParentRenderElement;// fromElement.ParentRenderElement;
if (fromElement == null)
{
return;
}
}
isBubbleUp = true;
} while (true);
#if DEBUG
var dbugMyroot = this;
if (dbugMyroot.dbugEnableGraphicInvalidateTrace
&& dbugMyroot.dbugGraphicInvalidateTracer != null)
{
while (dbug_ncount > 0)
{
dbugMyroot.dbugGraphicInvalidateTracer.PopElement();
dbug_ncount--;
}
}
#endif
//----------------------------------------
//elemClientRect.Offset(globalX, globalY);
elemClientRect.Offset(globalPoint);
if (elemClientRect.Top > this.Height
|| elemClientRect.Left > this.Width
|| elemClientRect.Bottom < 0
|| elemClientRect.Right < 0)
{
//no intersect with
#if DEBUG
if (dbugMyroot.dbugEnableGraphicInvalidateTrace &&
dbugMyroot.dbugGraphicInvalidateTracer != null)
{
dbugMyroot.dbugGraphicInvalidateTracer.WriteInfo("ZERO-EEX");
dbugMyroot.dbugGraphicInvalidateTracer.WriteInfo("\r\n");
}
#endif
return;
}
//--------------------------------------------------------------------------------------------------
if (!hasAccumRect)
{
accumulateInvalidRect = elemClientRect;
hasAccumRect = true;
}
else
{
accumulateInvalidRect = Rectangle.Union(accumulateInvalidRect, elemClientRect);
}
#if DEBUG
if (dbugMyroot.dbugEnableGraphicInvalidateTrace &&
dbugMyroot.dbugGraphicInvalidateTracer != null)
{
string state_str = "ACC: ";
if (this.dbugNeedContentArrangement || this.dbugNeedReCalculateContentSize)
{
state_str = "!!" + state_str;
}
dbugMyroot.dbugGraphicInvalidateTracer.WriteInfo("ACC: " + accumulateInvalidRect.ToString());
dbugMyroot.dbugGraphicInvalidateTracer.WriteInfo("\r\n");
}
#endif
}
/// <summary>
/// Intersect Method
/// </summary>
///
/// <remarks>
/// Replaces the Rectangle with the intersection of itself
/// and another Rectangle.
/// </remarks>
public void Intersect(Rectangle rect)
{
this = Rectangle.Intersect(this, rect);
}
