/// <summary>Called just before the image is about to be drawn (only ever when it's actually visible).
/// Note that everything else - e.g. ImageMaterial or Width/Height - is always called after this.</summary>
public override void OnLayout(Css.RenderableData context, LayoutBox box, out float width, out float height)
{
// Get the shape of the element:
width = box.PaddedWidth;
height = box.PaddedHeight;
// Tell the context which may trigger a redraw:
Context.SetSize((int)width, (int)height);
}
public override void GoingOnDisplay(Css.RenderableData context)
{
if (Animation == null && SPAFile != null)
{
Animation = SPAFile.GetInstance();
// Set the event context now:
Animation.SetContext(context);
}
}
/// <summary>Called just before the image is about to be drawn (only ever when it's actually visible).
/// Note that everything else - e.g. ImageMaterial or Width/Height - is always called after this.</summary>
public override void OnLayout(Css.RenderableData context, LayoutBox box, out float width, out float height)
{
// Get the shape of the element:
width = box.PaddedWidth;
height = box.PaddedHeight;
if (width != Image.width || height != Image.height)
{
Resize((int)width, (int)height);
}
}
/// <summary>Asks the renderer to perform a paint on the given style object next update.</summary>
/// <param name="style">The style to paint.</param>
public void RequestUpdate(Css.RenderableData style, UpdateMode mode)
{
if (DoLayout)
{
// Full reflow is occuring anyway - do nothing:
return;
}
// Ignore this request if it was for something lesser.
int previousMode = (int)style.NextUpdateMode;
if ((int)mode > previousMode)
{
// We're now requesting an update:
style.NextUpdateMode = mode;
}
else
{
// (e.g. it has already got a reflow queued up but a paint was requested;
// reflow performs a paint).
return;
}
// Is it the highest update mode?
if ((int)mode > (int)HighestUpdateMode)
{
// Update highest:
HighestUpdateMode = mode;
}
if (previousMode != 0)
{
// Already in the queue - don't add again.
return;
}
if (StylesToUpdate == null)
{
StylesToUpdate = style;
style.Next = null;
}
else
{
style.Next = StylesToUpdate;
StylesToUpdate = style;
}
}
public override void GoingOnDisplay(Css.RenderableData context)
{
// Note that this is only called if Video is set.
HtmlVideoElement videoElement = context.Node as HtmlVideoElement;
if (videoElement == null)
{
return;
}
if (!Video.isPlaying && videoElement["autoplay"] != null)
{
// Play now:
videoElement.play();
// Clear - don't autoplay again:
videoElement["autoplay"] = null;
}
}
/// <summary>Apply this CSS style to the given computed style.
/// Note that you can grab the element from the computed style if you need that.</summary>
/// <param name="style">The computed style to apply the property to.</param>
/// <param name="value">The new value being applied.</param>
public virtual void ApplyText(TextRenderingProperty text, RenderableData data, ComputedStyle style, Value value)
{
}
/// <summary>Gets the value as an image, if it is one.</summary>
public virtual ImageFormat GetImage(RenderableData context,CssProperty property){
return null;
}
/// <summary>The value of the 'normal' keyword.</summary>
public virtual float GetNormalValue(RenderableData context)
{
return(0f);
}
/// <summary>Update causes all changes to be applied and layouts to occur.</summary>
public void Update()
{
if (DoLayout && AllowLayout)
{
// Layout RootDocument.
Layout();
}
else if (StylesToUpdate != null)
{
// Local update - these events typically fire from changes to things like colour/z-index etc
// as well as for reflows of "flow root" nodes.
// It's done down here incase a full layout request is made (above).
// If a full layout request was made, it would cover all of these anyway.
UpdateMode modeToUse = HighestUpdateMode;
HighestUpdateMode = UpdateMode.None;
bool anyReflowMode = ((int)modeToUse > (int)UpdateMode.PaintAll);
if (anyReflowMode)
{
// We'll be re-rendering.
Reset();
// Invalidate input pointers:
// (So they figure out what elements are under the mouse/fingers)
PowerUI.Input.PointersInvalid = true;
// First, push all batches to the pool - inlined for speed:
// Note that no isolated batches enter either the queue or the pool until their no longer isolated.
if (FirstBatch != null)
{
LastBatch.BatchAfter = UIBatchPool.First;
UIBatchPool.First = FirstBatch;
}
FirstBatch = LastBatch = null;
// Note: Batches are Prepared For Layout as they are added.
LayoutOccuring = true;
}
Css.RenderableData style = StylesToUpdate;
StylesToUpdate = null;
while (style != null)
{
UpdateMode mode = style.NextUpdateMode;
switch (mode)
{
case UpdateMode.PaintAll:
// Don't bother if we're doing either kind of reflow:
if (anyReflowMode)
{
continue;
}
// Repaint it:
style.RepaintAll(this);
break;
case UpdateMode.Paint:
// Repaint it:
style.Repaint(this);
// Must also repaint the nodes child text nodes too (as they share the same CS):
NodeList kids = style.Node.childNodes_;
if (kids != null)
{
// For each child node..
for (int i = 0; i < kids.length; i++)
{
// Get it as a text node:
Node child = kids[i];
if (child is TextNode)
{
// Repaint it too:
(child as IRenderableNode).RenderData.Repaint(this);
}
}
}
break;
case UpdateMode.Reflow:
// Flow root reflow request.
// Must setup stacks and any other renderer settings here!
// Perform the initial reflow now:
style.UpdateCss(this);
style.Reflow(this);
break;
case UpdateMode.Render:
// Only call render:
style.Render(this);
break;
/*
* case UpdateMode.FastReflow:
*
* // Fast reflow request only requires a repaint.
*
* break;
*/
}
// Clear its update mode:
style.NextUpdateMode = UpdateMode.None;
style = style.Next;
}
if (!anyReflowMode)
{
// Only a flush is required:
UIBatch toFlush = FirstBatch;
while (toFlush != null)
{
toFlush.Flush();
toFlush = toFlush.BatchAfter;
}
}
else
{
// Position elements locally.
// This sets their ParentOffset values and as a result finds their PixelWidth.
IRenderableNode root = RootDocument.documentElement as IRenderableNode;
if (root != null)
{
// Finally, position them globally:
// This calculates OffsetLeft/Top and also fires the render event on the computed style object.
root.RenderData.Render(this);
}
LayoutOccuring = false;
// Tell each batch we're done laying them out:
UIBatch currentBatch = FirstBatch;
while (currentBatch != null)
{
currentBatch.CompletedLayout();
currentBatch = currentBatch.BatchAfter;
}
// Hide all pool entries:
UIBatchPool.HideAll();
}
}
}
/// <summary>Creates a new box-shadow property for the given element.</summary>
/// <param name="data">The renderable object to give a shadow to.</param>
public BackgroundShadow(RenderableData data) : base(data)
{
}
/// <summary>Creates a new displayable property for the given render data.</summary>
public DisplayableProperty(RenderableData data)
{
RenderData = data;
}
/// <summary>Creates a new text rendering property. Note that this must not be called directly.
/// Set content: instead; if you're doing that from a tag, take a look at BR.</summary>
/// <param name="data">The renderable object that this is rendering 3D text for.</param>
public TextRenderingProperty3D(RenderableData data) : base(data)
{
}
/// <summary>Creates a new solid background colour property for the given element.</summary>
/// <param name="data">The renderable object to give a bg colour to.</param>
public BackgroundColour(RenderableData data) : base(data)
{
}
/// <summary>Called when this image is going to be displayed.</summary>
public virtual void GoingOnDisplay(Css.RenderableData context)
{
}
/// <summary>If this is a pixel integer, the raw pixel value.</summary>
public int GetInteger(RenderableData context,CssProperty property){
return (int)GetDecimal(context,property);
}
/// <summary>If this is a boolean, the raw bool value.</summary>
public virtual bool GetBoolean(RenderableData context,CssProperty property){
return false;
}
/// <summary>If this is a text value, e.g. "auto", the raw text value.</summary>
public virtual string GetText(RenderableData context,CssProperty property){
return "";
}
/// <summary>If this is a decimal, the raw decimal value. This is generally the main output.</summary>
public virtual float GetDecimal(RenderableData context,CssProperty property){
return 0f;
}
/// <summary>Gets this value as a vector path (or null if it isn't one).</summary>
public virtual Blaze.VectorPath GetPath(RenderableData context,CssProperty property){
return null;
}
/// <summary>Creates a new border property for the given element.</summary>
/// <param name="data">The renderable object to give a border to.</param>
public BorderProperty(RenderableData data) : base(data)
{
}