public override void DoRepaint()
{
Texture2D backgroundTexture = GradientEditor.GetBackgroundTexture();
IStylePainter stylePainter = base.elementPanel.stylePainter;
TextureStylePainterParameters defaultTextureParameters = stylePainter.GetDefaultTextureParameters(this);
defaultTextureParameters.texture = backgroundTexture;
stylePainter.DrawTexture(defaultTextureParameters);
base.DoRepaint();
}
internal static void DrawBackground(this IStylePainter painter, VisualElement ve)
{
IStyle style = ve.style;
if (style.backgroundColor != Color.clear)
{
RectStylePainterParameters defaultRectParameters = painter.GetDefaultRectParameters(ve);
defaultRectParameters.border.SetWidth(0f);
painter.DrawRect(defaultRectParameters);
}
if (style.backgroundImage.value != null)
{
TextureStylePainterParameters defaultTextureParameters = painter.GetDefaultTextureParameters(ve);
defaultTextureParameters.border.SetWidth(0f);
painter.DrawTexture(defaultTextureParameters);
}
}
private void PaintSubTree(Event e, VisualElement root, Matrix4x4 offset, VisualElement.ClippingOptions clippingOption, Rect currentGlobalClip)
{
if (root == null || root.panel != this)
{
return;
}
if (root.visible == false ||
root.style.opacity.GetSpecifiedValueOrDefault(1.0f) < Mathf.Epsilon)
{
return;
}
// update clip
if (root.clippingOptions != VisualElement.ClippingOptions.NoClipping)
{
var worldBound = ComputeAAAlignedBound(root.rect, offset * root.worldTransform);
// are we and our children clipped?
if (!worldBound.Overlaps(currentGlobalClip))
{
return;
}
float x1 = Mathf.Max(worldBound.x, currentGlobalClip.x);
float x2 = Mathf.Min(worldBound.xMax, currentGlobalClip.xMax);
float y1 = Mathf.Max(worldBound.y, currentGlobalClip.y);
float y2 = Mathf.Min(worldBound.yMax, currentGlobalClip.yMax);
// new global clip and hierarchical clip space option.
currentGlobalClip = new Rect(x1, y1, x2 - x1, y2 - y1);
clippingOption = root.clippingOptions;
}
else
{
//since our children are not clipped, there is no early out.
}
// Check for the rotated space - clipping issue.
if (!whinedOnceAboutRotatedClipSpaceThisFrame && clippingOption == VisualElement.ClippingOptions.ClipContents && DoesMatrixHaveUnsupportedRotation(root.worldTransform))
{
Debug.LogError("Panel.PaintSubTree - Rotated clip-spaces are only supported by the VisualElement.ClippingOptions.ClipAndCacheContents mode. First offending Panel:'" + root.name + "'.");
whinedOnceAboutRotatedClipSpaceThisFrame = true;
}
if (ShouldUsePixelCache(root))
{
// now actually paint the texture to previous group
IStylePainter painter = stylePainter;
// validate cache texture size first
var worldBound = root.worldBound;
Rect alignedRect;
int textureWidth, textureHeight;
painter.currentWorldClip = currentGlobalClip;
painter.currentTransform = offset * root.worldTransform;
using (new GUIClip.ParentClipScope(painter.currentTransform, currentGlobalClip))
{
alignedRect = GUIUtility.AlignRectToDevice(root.rect, out textureWidth, out textureHeight);
}
// Prevent the texture size from going empty, which may occur if the element has a sub-pixel size
textureWidth = Math.Max(textureWidth, 1);
textureHeight = Math.Max(textureHeight, 1);
var cache = root.renderData.pixelCache;
if (cache != null &&
(cache.width != textureWidth || cache.height != textureHeight) &&
(!keepPixelCacheOnWorldBoundChange || root.IsDirty(ChangeType.Repaint)))
{
Object.DestroyImmediate(cache);
cache = root.renderData.pixelCache = null;
}
// if the child node world transforms are not up to date due to changes below the pixel cache this is fine.
if (root.IsDirty(ChangeType.Repaint) ||
root.renderData.pixelCache == null ||
!root.renderData.pixelCache.IsCreated())
{
// Recreate as needed
if (cache == null)
{
root.renderData.pixelCache = cache = new RenderTexture(
textureWidth,
textureHeight,
32, // depth
RenderTextureFormat.ARGB32,
RenderTextureReadWrite.sRGB);
}
bool hasRoundedBorderRects = (root.style.borderTopLeftRadius > 0 ||
root.style.borderTopRightRadius > 0 ||
root.style.borderBottomLeftRadius > 0 ||
root.style.borderBottomRightRadius > 0);
RenderTexture temporaryTexture = null;
var old = RenderTexture.active;
try
{
// We first render to a temp texture, then blit the result into the result pixelCache again to mask the rounder corners
if (hasRoundedBorderRects)
{
temporaryTexture = cache = RenderTexture.GetTemporary(textureWidth, textureHeight, 32,
RenderTextureFormat.ARGB32, RenderTextureReadWrite.sRGB);
}
// render the texture again to clip the round rect borders
RenderTexture.active = cache;
GL.Clear(true, true, new Color(0, 0, 0, 0));
// Calculate the offset required to translate the origin of the rect to the upper left corner
// of the pixel cache. We need to round because the rect will be rounded when rendered.
Rect worldAlignedRect = root.LocalToWorld(alignedRect);
var childrenOffset = Matrix4x4.Translate(new Vector3(-worldAlignedRect.x, -worldAlignedRect.y, 0));
Matrix4x4 offsetWorldTransform = childrenOffset * root.worldTransform;
// reset clipping
var textureClip = new Rect(0, 0, worldAlignedRect.width, worldAlignedRect.height);
painter.currentTransform = offsetWorldTransform;
// Metal ignores the sRGBWrite flag and will always do linear to gamma conversions
// when writing to an sRGB buffer. In this situation, we disable the manual sRGB
// conversion since it will be done automatically when writing to the framebuffer.
bool manualTex2SRGBEnabled = (SystemInfo.graphicsDeviceType != GraphicsDeviceType.Metal);
using (new GUIUtility.ManualTex2SRGBScope(manualTex2SRGBEnabled))
using (new GUIClip.ParentClipScope(painter.currentTransform, textureClip))
{
// Paint self
painter.currentWorldClip = textureClip;
stylePainter.opacity = root.style.opacity.GetSpecifiedValueOrDefault(1.0f);
root.DoRepaint(painter);
stylePainter.opacity = 1.0f;
root.ClearDirty(ChangeType.Repaint);
PaintSubTreeChildren(e, root, childrenOffset, clippingOption, textureClip);
}
if (hasRoundedBorderRects)
{
RenderTexture.active = root.renderData.pixelCache;
// Fix up transform for subtree to match texture upper left.
painter.currentTransform = Matrix4x4.identity;
using (new GUIUtility.ManualTex2SRGBScope(manualTex2SRGBEnabled))
using (new GUIClip.ParentClipScope(painter.currentTransform, textureClip))
{
GL.Clear(true, true, new Color(0, 0, 0, 0));
var textureParams = painter.GetDefaultTextureParameters(root);
textureParams.texture = cache;
textureParams.scaleMode = ScaleMode.StretchToFill;
textureParams.rect = textureClip;
textureParams.border.SetWidth(0.0f);
// The rect of the temporary texture implicitly carries the scale factor of the
// transform. Since we are blitting with an identity matrix, we need to scale the
// radius manually.
// We assume uniform positive scaling without rotations.
Vector4 toScale = new Vector4(1, 0, 0, 0);
Vector4 scaled = offsetWorldTransform * toScale;
float radiusScale = scaled.x;
textureParams.border.SetRadius(
textureParams.border.topLeftRadius * radiusScale,
textureParams.border.topRightRadius * radiusScale,
textureParams.border.bottomRightRadius * radiusScale,
textureParams.border.bottomLeftRadius * radiusScale);
// No border is drawn but the rounded corners are clipped properly.
// Use premultiply alpha to avoid blending again.
textureParams.usePremultiplyAlpha = true;
painter.DrawTexture(textureParams);
}
// Redraw the border (border was already drawn in first root.DoRepaint call).
painter.currentTransform = offsetWorldTransform;
using (new GUIUtility.ManualTex2SRGBScope(manualTex2SRGBEnabled))
using (new GUIClip.ParentClipScope(painter.currentTransform, textureClip))
{
painter.DrawBorder(root);
}
}
}
finally
{
cache = null;
if (temporaryTexture != null)
{
RenderTexture.ReleaseTemporary(temporaryTexture);
}
RenderTexture.active = old;
}
}
// now actually paint the texture to previous group
painter.currentWorldClip = currentGlobalClip;
painter.currentTransform = offset * root.worldTransform;
using (new GUIClip.ParentClipScope(painter.currentTransform, currentGlobalClip))
{
var painterParams = new TextureStylePainterParameters
{
rect = GUIUtility.AlignRectToDevice(root.rect),
uv = new Rect(0, 0, 1, 1),
texture = root.renderData.pixelCache,
color = Color.white,
scaleMode = ScaleMode.StretchToFill,
usePremultiplyAlpha = true
};
painter.DrawTexture(painterParams);
}
}
else
{
stylePainter.currentTransform = offset * root.worldTransform;
using (new GUIClip.ParentClipScope(stylePainter.currentTransform, currentGlobalClip))
{
stylePainter.currentWorldClip = currentGlobalClip;
stylePainter.mousePosition = root.worldTransform.inverse.MultiplyPoint3x4(e.mousePosition);
stylePainter.opacity = root.style.opacity.GetSpecifiedValueOrDefault(1.0f);
root.DoRepaint(stylePainter);
stylePainter.opacity = 1.0f;
root.ClearDirty(ChangeType.Repaint);
PaintSubTreeChildren(e, root, offset, clippingOption, currentGlobalClip);
}
}
}
private void PaintSubTree(Event e, VisualElement root, Matrix4x4 offset, Rect currentGlobalClip)
{
if (root != null && root.panel == this)
{
if ((root.pseudoStates & PseudoStates.Invisible) != PseudoStates.Invisible && root.style.opacity.GetSpecifiedValueOrDefault(1f) >= Mathf.Epsilon)
{
if (root.clippingOptions != VisualElement.ClippingOptions.NoClipping)
{
Rect rect = this.ComputeAAAlignedBound(root.rect, offset * root.worldTransform);
if (!rect.Overlaps(currentGlobalClip))
{
return;
}
float num = Mathf.Max(rect.x, currentGlobalClip.x);
float num2 = Mathf.Min(rect.x + rect.width, currentGlobalClip.x + currentGlobalClip.width);
float num3 = Mathf.Max(rect.y, currentGlobalClip.y);
float num4 = Mathf.Min(rect.y + rect.height, currentGlobalClip.y + currentGlobalClip.height);
currentGlobalClip = new Rect(num, num3, num2 - num, num4 - num3);
}
if (this.ShouldUsePixelCache(root))
{
IStylePainter stylePainter = this.stylePainter;
Rect worldBound = root.worldBound;
int num5 = Mathf.RoundToInt(worldBound.xMax) - Mathf.RoundToInt(worldBound.xMin);
int num6 = Mathf.RoundToInt(worldBound.yMax) - Mathf.RoundToInt(worldBound.yMin);
int num7 = Mathf.RoundToInt((float)num5 * GUIUtility.pixelsPerPoint);
int num8 = Mathf.RoundToInt((float)num6 * GUIUtility.pixelsPerPoint);
num7 = Math.Max(num7, 1);
num8 = Math.Max(num8, 1);
RenderTexture renderTexture = root.renderData.pixelCache;
if (renderTexture != null && (renderTexture.width != num7 || renderTexture.height != num8) && (!this.keepPixelCacheOnWorldBoundChange || root.IsDirty(ChangeType.Repaint)))
{
UnityEngine.Object.DestroyImmediate(renderTexture);
renderTexture = (root.renderData.pixelCache = null);
}
if (root.IsDirty(ChangeType.Repaint) || root.renderData.pixelCache == null || !root.renderData.pixelCache.IsCreated())
{
if (renderTexture == null)
{
renderTexture = (root.renderData.pixelCache = new RenderTexture(num7, num8, 32, RenderTextureFormat.ARGB32, RenderTextureReadWrite.sRGB));
}
bool flag = root.style.borderTopLeftRadius > 0f || root.style.borderTopRightRadius > 0f || root.style.borderBottomLeftRadius > 0f || root.style.borderBottomRightRadius > 0f;
RenderTexture renderTexture2 = null;
RenderTexture active = RenderTexture.active;
try
{
if (flag)
{
renderTexture = (renderTexture2 = RenderTexture.GetTemporary(num7, num8, 32, RenderTextureFormat.ARGB32, RenderTextureReadWrite.sRGB));
}
RenderTexture.active = renderTexture;
GL.Clear(true, true, new Color(0f, 0f, 0f, 0f));
Matrix4x4 matrix4x = Matrix4x4.Translate(new Vector3((float)(-(float)Mathf.RoundToInt(worldBound.x)), (float)(-(float)Mathf.RoundToInt(worldBound.y)), 0f));
Matrix4x4 matrix4x2 = matrix4x * root.worldTransform;
Rect rect2 = new Rect(0f, 0f, (float)num5, (float)num6);
stylePainter.currentTransform = matrix4x2;
bool enabled = SystemInfo.graphicsDeviceType != GraphicsDeviceType.Metal;
using (new GUIUtility.ManualTex2SRGBScope(enabled))
{
using (new GUIClip.ParentClipScope(stylePainter.currentTransform, rect2))
{
stylePainter.currentWorldClip = rect2;
root.DoRepaint(stylePainter);
root.ClearDirty(ChangeType.Repaint);
this.PaintSubTreeChildren(e, root, matrix4x, rect2);
}
}
if (flag)
{
RenderTexture.active = root.renderData.pixelCache;
stylePainter.currentTransform = Matrix4x4.identity;
using (new GUIUtility.ManualTex2SRGBScope(enabled))
{
using (new GUIClip.ParentClipScope(stylePainter.currentTransform, rect2))
{
GL.Clear(true, true, new Color(0f, 0f, 0f, 0f));
TextureStylePainterParameters defaultTextureParameters = stylePainter.GetDefaultTextureParameters(root);
defaultTextureParameters.texture = renderTexture;
defaultTextureParameters.scaleMode = ScaleMode.StretchToFill;
defaultTextureParameters.rect = rect2;
defaultTextureParameters.border.SetWidth(0f);
Vector4 vector = new Vector4(1f, 0f, 0f, 0f);
float x = (matrix4x2 * vector).x;
defaultTextureParameters.border.SetRadius(defaultTextureParameters.border.topLeftRadius * x, defaultTextureParameters.border.topRightRadius * x, defaultTextureParameters.border.bottomRightRadius * x, defaultTextureParameters.border.bottomLeftRadius * x);
defaultTextureParameters.usePremultiplyAlpha = true;
stylePainter.DrawTexture(defaultTextureParameters);
}
}
stylePainter.currentTransform = matrix4x2;
using (new GUIUtility.ManualTex2SRGBScope(enabled))
{
using (new GUIClip.ParentClipScope(stylePainter.currentTransform, rect2))
{
stylePainter.DrawBorder(root);
}
}
}
}
finally
{
renderTexture = null;
if (renderTexture2 != null)
{
RenderTexture.ReleaseTemporary(renderTexture2);
}
RenderTexture.active = active;
}
}
stylePainter.currentWorldClip = currentGlobalClip;
stylePainter.currentTransform = offset * root.worldTransform;
TextureStylePainterParameters painterParams = new TextureStylePainterParameters
{
rect = root.rect,
uv = new Rect(0f, 0f, 1f, 1f),
texture = root.renderData.pixelCache,
color = Color.white,
scaleMode = ScaleMode.ScaleAndCrop,
usePremultiplyAlpha = true
};
using (new GUIClip.ParentClipScope(stylePainter.currentTransform, currentGlobalClip))
{
stylePainter.DrawTexture(painterParams);
}
}
else
{
this.stylePainter.currentTransform = offset * root.worldTransform;
using (new GUIClip.ParentClipScope(this.stylePainter.currentTransform, currentGlobalClip))
{
this.stylePainter.currentWorldClip = currentGlobalClip;
this.stylePainter.mousePosition = root.worldTransform.inverse.MultiplyPoint3x4(e.mousePosition);
this.stylePainter.opacity = root.style.opacity.GetSpecifiedValueOrDefault(1f);
root.DoRepaint(this.stylePainter);
this.stylePainter.opacity = 1f;
root.ClearDirty(ChangeType.Repaint);
this.PaintSubTreeChildren(e, root, offset, currentGlobalClip);
}
}
}
}
}