Support %-unit for transform:translate()

DEVSIX-1310

Autoported commit.
Original commit hash: [ee1d5a031]

Author: LodrKumquat

itext/itext.layout/itext/layout/renderer/AbstractRenderer.cs

@@ -691,7 +691,7 @@ protected internal virtual bool ClipBackgroundArea(DrawContext drawContext, Rect
         public virtual void DrawChildren(DrawContext drawContext) {
             IList<IRenderer> waitingRenderers = new List<IRenderer>();
             foreach (IRenderer child in childRenderers) {
-                if (FloatingHelper.IsRendererFloating(child) || child.GetProperty(Property.TRANSFORM) != null) {
+                if (FloatingHelper.IsRendererFloating(child) || child.GetProperty<String[]>(Property.TRANSFORM) != null) {
                     RootRenderer rootRenderer = GetRootRenderer();
                     if (rootRenderer != null && !rootRenderer.waitingDrawingElements.Contains(child)) {
                         rootRenderer.waitingDrawingElements.Add(child);
@@ -1509,7 +1509,7 @@ protected internal virtual Rectangle CalculateAbsolutePdfBBox() {
                         TransformPoints(contentBoxPoints, rotationTransform);
                     }
                 }
-                float[] transform = renderer.GetProperty<float[]>(Property.TRANSFORM);
+                String[] transform = renderer.GetProperty<String[]>(Property.TRANSFORM);
                 if (transform != null) {
                     if (renderer is BlockRenderer) {
                         BlockRenderer blockRenderer = (BlockRenderer)renderer;
@@ -1846,24 +1846,45 @@ protected internal virtual AffineTransform CreateTransformationInsideOccupiedAre
             float width = backgroundArea.GetWidth();
             AffineTransform transform = AffineTransform.GetTranslateInstance(-1 * (x + width / 2), -1 * (y + height / 
                 2));
-            transform.PreConcatenate((new AffineTransform((float[])this.GetProperty(Property.TRANSFORM))));
+            transform.PreConcatenate(new AffineTransform(this.GetCssTransformMatrix(width, height)));
             transform.PreConcatenate(AffineTransform.GetTranslateInstance(x + width / 2, y + height / 2));
             return transform;
         }
 
         protected internal virtual void BeginTranformationIfApplied(PdfCanvas canvas) {
-            if (this.GetProperty(Property.TRANSFORM) != null) {
+            if (this.GetProperty<String[]>(Property.TRANSFORM) != null) {
                 AffineTransform transform = CreateTransformationInsideOccupiedArea();
                 canvas.SaveState().ConcatMatrix(transform);
             }
         }
 
         protected internal virtual void EndTranformationIfApplied(PdfCanvas canvas) {
-            if (this.GetProperty(Property.TRANSFORM) != null) {
+            if (this.GetProperty<String[]>(Property.TRANSFORM) != null) {
                 canvas.RestoreState();
             }
         }
 
+        private float[] GetCssTransformMatrix(float width, float height) {
+            String[] strings = this.GetProperty<String[]>(Property.TRANSFORM);
+            float[] floats = new float[6];
+            for (int i = 0; i < 6; i++) {
+                if (i == 4 || i == 5) {
+                    int indexOfPercent = strings[i].IndexOf('%');
+                    if (indexOfPercent > 0) {
+                        floats[i] = float.Parse(strings[i].JSubstring(0, indexOfPercent), System.Globalization.CultureInfo.InvariantCulture
+                            ) / 100 * (i == 4 ? width : height);
+                    }
+                    else {
+                        floats[i] = float.Parse(strings[i], System.Globalization.CultureInfo.InvariantCulture);
+                    }
+                }
+                else {
+                    floats[i] = float.Parse(strings[i], System.Globalization.CultureInfo.InvariantCulture);
+                }
+            }
+            return floats;
+        }
+
         public abstract IRenderer GetNextRenderer();
 
         public abstract LayoutResult Layout(LayoutContext arg1);

itext/itext.layout/itext/layout/renderer/CanvasRenderer.cs

@@ -41,6 +41,7 @@ source product.
 For more information, please contact iText Software Corp. at this
 address: [email protected]
 */
+using System;
 using iText.IO.Log;
 using iText.Kernel.Pdf.Tagutils;
 using iText.Layout;
@@ -99,7 +100,7 @@ public override void AddChild(IRenderer renderer) {
         /// <summary><inheritDoc/></summary>
         protected internal override void FlushSingleRenderer(IRenderer resultRenderer) {
             if (!waitingDrawingElements.Contains(resultRenderer) && (FloatingHelper.IsRendererFloating(resultRenderer)
-                 || resultRenderer.GetProperty(Property.TRANSFORM) != null)) {
+                 || resultRenderer.GetProperty<String[]>(Property.TRANSFORM) != null)) {
                 waitingDrawingElements.Add(resultRenderer);
                 return;
             }

itext/itext.layout/itext/layout/renderer/DocumentRenderer.cs

@@ -107,7 +107,7 @@ protected internal override LayoutArea UpdateCurrentArea(LayoutResult overflowRe
 
         protected internal override void FlushSingleRenderer(IRenderer resultRenderer) {
             if (!waitingDrawingElements.Contains(resultRenderer) && (FloatingHelper.IsRendererFloating(resultRenderer)
-                 || resultRenderer.GetProperty(Property.TRANSFORM) != null)) {
+                 || resultRenderer.GetProperty<String[]>(Property.TRANSFORM) != null)) {
                 waitingDrawingElements.Add(resultRenderer);
                 return;
             }

port-hash

@@ -1 +1 @@
-25659fb3d9ab9b283297715d4fb9c1f40f48cd83
+ee1d5a031e514f0988847742a9c1172a5631af3b