Add support for percent base parameters - width, height & margins

src/org/nativescript/widgets/AbsoluteLayout.java

@@ -30,6 +30,7 @@ public class AbsoluteLayout extends LayoutBase {
 			    continue;
 			}
 			
+			CommonLayoutParams.updateChildLayoutParams(child, widthMeasureSpec, heightMeasureSpec);
 			CommonLayoutParams.measureChild(child, childMeasureSpec, childMeasureSpec);		   	
 		    final int childMeasuredWidth = CommonLayoutParams.getDesiredWidth(child);
 		    final int childMeasuredHeight = CommonLayoutParams.getDesiredHeight(child);

src/org/nativescript/widgets/CommonLayoutParams.java

@@ -28,6 +28,14 @@ public class CommonLayoutParams extends FrameLayout.LayoutParams {
 		super(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
 	}
 
+	public float widthPercent = 0;
+	public float heightPercent = 0;
+	
+	public float topMarginPercent = 0;
+	public float leftMarginPercent = 0;
+	public float bottomMarginPercent = 0;
+	public float rightMarginPercent = 0;
+	
 	public int left = 0;
 	public int top = 0;
 	public int row = 0;
@@ -177,7 +185,7 @@ public class CommonLayoutParams extends FrameLayout.LayoutParams {
             return;
         }
 
-        // Negative means we are not initialized.
+        // Negative means not initialized.
         if(debuggable < 0) {
         	try {
 				Context context = child.getContext();
@@ -189,25 +197,50 @@ public class CommonLayoutParams extends FrameLayout.LayoutParams {
 			}
         }
         
+        int childWidthMeasureSpec = getMeasureSpec(child, widthMeasureSpec, true);
+        int childHeightMeasureSpec = getMeasureSpec(child, heightMeasureSpec, false);
+
         if (debuggable > 0) {
         	sb.setLength(0);
 	        sb.append(child.getParent().toString());
 	        sb.append(" :measureChild: ");
 	        sb.append(child.toString());
 	        sb.append(" ");
-	        sb.append(MeasureSpec.toString(widthMeasureSpec));
+	        sb.append(MeasureSpec.toString(childWidthMeasureSpec));
 	        sb.append(", ");
-	        sb.append(MeasureSpec.toString(heightMeasureSpec));
+	        sb.append(MeasureSpec.toString(childHeightMeasureSpec));
 	        log(tag,  sb.toString());
         }
         
-        int childWidthMeasureSpec = getMeasureSpec(child, widthMeasureSpec, true);
-        int childHeightMeasureSpec = getMeasureSpec(child, heightMeasureSpec, false);
-
         child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
     }
 
-    static void log(String tag, String message) {
+    public static void updateChildLayoutParams(View child, int widthMeasureSpec, int heightMeasureSpec) {
+    	
+    	int availableWidth = MeasureSpec.getSize(widthMeasureSpec);
+    	int availableHeight = MeasureSpec.getSize(heightMeasureSpec);    	
+    	CommonLayoutParams lp = (CommonLayoutParams)child.getLayoutParams();	    	
+    	if (lp.widthPercent > 0) {
+    		lp.width = (int)(availableWidth * lp.widthPercent);
+    	}	    	
+    	if (lp.heightPercent > 0) {
+    		lp.height = (int)(availableHeight * lp.heightPercent);
+    	}	    	
+    	if (lp.leftMarginPercent > 0) {
+    		lp.leftMargin = (int)(availableWidth * lp.leftMarginPercent);
+    	}	    	
+    	if (lp.rightMarginPercent > 0) {
+    		lp.rightMargin = (int)(availableWidth * lp.rightMarginPercent);
+    	}	    	
+    	if (lp.topMarginPercent > 0) {
+    		lp.topMargin = (int)(availableHeight * lp.topMarginPercent);
+    	}	    	
+    	if (lp.bottomMarginPercent > 0) {
+    		lp.bottomMargin = (int)(availableHeight * lp.bottomMarginPercent);
+    	}
+    }
+
+	static void log(String tag, String message) {
         Log.d(tag, message);
     }
     

src/org/nativescript/widgets/ContentLayout.java

@@ -29,6 +29,7 @@ public class ContentLayout extends LayoutBase {
                 continue;
             }
 
+            CommonLayoutParams.updateChildLayoutParams(child, widthMeasureSpec, heightMeasureSpec);
         	CommonLayoutParams.measureChild(child, widthMeasureSpec, heightMeasureSpec);
             final int childMeasuredWidth = CommonLayoutParams.getDesiredWidth(child);
             final int childMeasuredHeight = CommonLayoutParams.getDesiredHeight(child);

src/org/nativescript/widgets/DockLayout.java

@@ -64,6 +64,7 @@ public class DockLayout extends LayoutBase {
                 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(remainingHeight, heightMode == MeasureSpec.EXACTLY ? MeasureSpec.AT_MOST : heightMode);
             }
 
+            CommonLayoutParams.updateChildLayoutParams(child, widthMeasureSpec, heightMeasureSpec);
             CommonLayoutParams.measureChild(child, childWidthMeasureSpec, childHeightMeasureSpec);
             final int childMeasuredWidth = CommonLayoutParams.getDesiredWidth(child);
             final int childMeasuredHeight = CommonLayoutParams.getDesiredHeight(child);

src/org/nativescript/widgets/GridLayout.java

@@ -272,6 +272,7 @@ public class GridLayout extends LayoutBase {
 				continue;
 			}
 
+			CommonLayoutParams.updateChildLayoutParams(child, widthMeasureSpec, heightMeasureSpec);
 			MeasureSpecs measureSpecs = this.map.get(child);
 			this.updateMeasureSpecs(child, measureSpecs);
 			this.helper.addMeasureSpec(measureSpecs);

src/org/nativescript/widgets/HorizontalScrollView.java

@@ -74,6 +74,7 @@ public class HorizontalScrollView extends android.widget.HorizontalScrollView {
             this.contentMeasuredHeight = 0;
         }
         else {
+        	CommonLayoutParams.updateChildLayoutParams(child, widthMeasureSpec, heightMeasureSpec);
         	CommonLayoutParams.measureChild(child, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), heightMeasureSpec);
         	this.contentMeasuredWidth = CommonLayoutParams.getDesiredWidth(child);
         	this.contentMeasuredHeight = CommonLayoutParams.getDesiredHeight(child);
@@ -84,6 +85,7 @@ public class HorizontalScrollView extends android.widget.HorizontalScrollView {
 	    }
 	
 	    // Don't add in our paddings because they are already added as child margins. (we will include them twice if we add them).
+        // Check the previous line - this.setPadding(lp.leftMargin, lp.topMargin, lp.rightMargin, lp.bottomMargin);
 //	    this.contentMeasuredWidth += this.getPaddingLeft() + this.getPaddingRight();
 //	    this.contentMeasuredHeight += this.getPaddingTop() + this.getPaddingBottom();
 

src/org/nativescript/widgets/StackLayout.java

@@ -77,6 +77,7 @@ public class StackLayout extends LayoutBase {
                 continue;
             }
 
+            CommonLayoutParams.updateChildLayoutParams(child, widthMeasureSpec, heightMeasureSpec);
             if (isVertical) {
             	CommonLayoutParams.measureChild(child, childMeasureSpec, MeasureSpec.makeMeasureSpec(remainingLength, measureSpecMode));
                 final int childMeasuredWidth = CommonLayoutParams.getDesiredWidth(child);

src/org/nativescript/widgets/VerticalScrollView.java

@@ -75,6 +75,7 @@ public class VerticalScrollView extends ScrollView {
 	        this.setPadding(0, 0, 0, 0);
 	    }
 	    else {
+	    	CommonLayoutParams.updateChildLayoutParams(child, widthMeasureSpec, heightMeasureSpec);
 	    	CommonLayoutParams.measureChild(child, widthMeasureSpec, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));	    	
 	    	this.contentMeasuredWidth = CommonLayoutParams.getDesiredWidth(child);
 	    	this.contentMeasuredHeight = CommonLayoutParams.getDesiredHeight(child);
@@ -85,6 +86,7 @@ public class VerticalScrollView extends ScrollView {
 	    }
 	
 	    // Don't add in our paddings because they are already added as child margins. (we will include them twice if we add them).
+	    // check the previous line - this.setPadding(lp.leftMargin, lp.topMargin, lp.rightMargin, lp.bottomMargin);
 //	    this.contentMeasuredWidth += this.getPaddingLeft() + this.getPaddingRight();
 //	    this.contentMeasuredHeight += this.getPaddingTop() + this.getPaddingBottom();
 	

src/org/nativescript/widgets/WrapLayout.java

@@ -92,6 +92,7 @@ public class WrapLayout extends LayoutBase {
                 continue;
             }
             
+            CommonLayoutParams.updateChildLayoutParams(child, widthMeasureSpec, heightMeasureSpec);
         	CommonLayoutParams.measureChild(child, childWidthMeasureSpec, childHeightMeasureSpec);
             final int childMeasuredWidth = CommonLayoutParams.getDesiredWidth(child);
             final int childMeasuredHeight = CommonLayoutParams.getDesiredHeight(child);