Merge pull request #103 from NativeScript/image-and-corners

Implement non uniform border corner radiuses and fix blinking image-view radiuses

.gitignore

@@ -46,3 +46,9 @@ local.properties
 ios/TNSWidgets/TNSWidgets.xcodeproj/project.xcworkspace/xcuserdata/
 ios/TNSWidgets/TNSWidgets.xcodeproj/xcuserdata/
 ios/TNSWidgets/DerivedData/
+
+android/widgets/bin
+android/widgets/.settings
+android/.project
+android/widgets/.project
+android/.settings

android/widgets/src/main/java/org/nativescript/widgets/BorderDrawable.java

@@ -14,6 +14,7 @@ import android.graphics.Rect;
 import android.graphics.RectF;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
+import android.graphics.Shader;
 
 import org.nativescript.widgets.image.BitmapOwner;
 import org.nativescript.widgets.image.Fetcher;
@@ -160,6 +161,13 @@ public class BorderDrawable extends ColorDrawable implements BitmapOwner {
         return backgroundSize;
     }
 
+    public boolean hasBorderWidth() {
+        return this.borderTopWidth != 0
+            || this.borderRightWidth != 0
+            || this.borderBottomWidth != 0
+            || this.borderLeftWidth != 0;
+    }
+
     public boolean hasUniformBorderColor() {
         return this.borderTopColor == this.borderRightColor &&
                 this.borderTopColor == this.borderBottomColor &&
@@ -260,23 +268,36 @@ public class BorderDrawable extends ColorDrawable implements BitmapOwner {
     @Override
     public void draw(Canvas canvas) {
         Rect bounds = this.getBounds();
-        if (bounds.width() <= 0 || bounds.height() <= 0) {
+        float width = (float)bounds.width();
+        float height = (float)bounds.height();
+
+        if (width <= 0 || height <= 0) {
             // When the view is off-screen the bounds might be empty and we don't have anything to draw.
             return;
         }
 
+        RectF backgroundBoundsF = new RectF(bounds.left, bounds.top, bounds.right, bounds.bottom);
+
         float topBackoffAntialias = calculateBackoffAntialias(this.borderTopColor, this.borderTopWidth);
         float rightBackoffAntialias = calculateBackoffAntialias(this.borderRightColor, this.borderRightWidth);
         float bottomBackoffAntialias = calculateBackoffAntialias(this.borderBottomColor, this.borderBottomWidth);
         float leftBackoffAntialias = calculateBackoffAntialias(this.borderLeftColor, this.borderLeftWidth);
 
-        RectF backgroundBoundsF = new RectF(
-                bounds.left + leftBackoffAntialias,
-                bounds.top + topBackoffAntialias,
-                bounds.right - rightBackoffAntialias,
-                bounds.bottom - bottomBackoffAntialias);
+        float[] backgroundRadii = {
+            Math.max(0, borderTopLeftRadius + leftBackoffAntialias), Math.max(0, borderTopLeftRadius + topBackoffAntialias),
+            Math.max(0, borderTopRightRadius + rightBackoffAntialias), Math.max(0, borderTopRightRadius + topBackoffAntialias),
+            Math.max(0, borderBottomRightRadius + rightBackoffAntialias), Math.max(0, borderBottomRightRadius + bottomBackoffAntialias),
+            Math.max(0, borderBottomLeftRadius + leftBackoffAntialias), Math.max(0, borderBottomLeftRadius + bottomBackoffAntialias)
+        };
 
-        float outerRadius = this.getUniformBorderRadius();
+        Path backgroundPath = new Path();
+        RectF backgroundRect = new RectF(
+            leftBackoffAntialias,
+            topBackoffAntialias,
+            width - rightBackoffAntialias,
+            height - bottomBackoffAntialias
+        );
+        backgroundPath.addRoundRect(backgroundRect, backgroundRadii, Path.Direction.CW);
 
         // draw background
         if (this.backgroundColor != 0) {
@@ -288,12 +309,12 @@ public class BorderDrawable extends ColorDrawable implements BitmapOwner {
             if (this.clipPath != null && !this.clipPath.isEmpty()) {
                 drawClipPath(this.clipPath, canvas, backgroundColorPaint, backgroundBoundsF, this.density);
             } else {
-                canvas.drawRoundRect(backgroundBoundsF, outerRadius, outerRadius, backgroundColorPaint);
+                canvas.drawPath(backgroundPath, backgroundColorPaint);
             }
         }
 
         if (this.backgroundBitmap != null) {
-            BackgroundDrawParams params = this.getDrawParams(bounds.width(), bounds.height());
+            BackgroundDrawParams params = this.getDrawParams(width, height);
             Matrix transform = new Matrix();
             if (params.sizeX > 0 && params.sizeY > 0) {
                 float scaleX = params.sizeX / this.backgroundBitmap.getWidth();
@@ -303,16 +324,21 @@ public class BorderDrawable extends ColorDrawable implements BitmapOwner {
                 params.sizeX = this.backgroundBitmap.getWidth();
                 params.sizeY = this.backgroundBitmap.getHeight();
             }
-            transform.postTranslate(params.posX - leftBackoffAntialias, params.posY - topBackoffAntialias);
-
-            BitmapShader shader = new BitmapShader(this.backgroundBitmap, android.graphics.Shader.TileMode.REPEAT, android.graphics.Shader.TileMode.REPEAT);
-            shader.setLocalMatrix(transform);
+            transform.postTranslate(params.posX, params.posY);
 
             Paint backgroundImagePaint = new Paint();
+            BitmapShader shader = new BitmapShader(
+                this.backgroundBitmap,
+                params.repeatX ? Shader.TileMode.REPEAT : Shader.TileMode.CLAMP,
+                params.repeatY ? Shader.TileMode.REPEAT : Shader.TileMode.CLAMP
+            );
+            shader.setLocalMatrix(transform);
+            backgroundImagePaint.setAntiAlias(true);
+            backgroundImagePaint.setFilterBitmap(true);
             backgroundImagePaint.setShader(shader);
 
-            float imageWidth = params.repeatX ? bounds.width() : params.sizeX;
-            float imageHeight = params.repeatY ? bounds.height() : params.sizeY;
+            float imageWidth = params.repeatX ? width : params.sizeX;
+            float imageHeight = params.repeatY ? height : params.sizeY;
             params.posX = params.repeatX ? 0 : params.posX;
             params.posY = params.repeatY ? 0 : params.posY;
 
@@ -321,60 +347,66 @@ public class BorderDrawable extends ColorDrawable implements BitmapOwner {
             } else {
                 boolean supportsPathOp = android.os.Build.VERSION.SDK_INT >= 19;
                 if (supportsPathOp) {
-                    // Path.Op can be used in API level 19+ to achieve the perfect geometry.
-                    Path backgroundPath = new Path();
-                    backgroundPath.addRoundRect(backgroundBoundsF, outerRadius, outerRadius, Path.Direction.CCW);
                     Path backgroundNoRepeatPath = new Path();
                     backgroundNoRepeatPath.addRect(params.posX, params.posY, params.posX + imageWidth, params.posY + imageHeight, Path.Direction.CCW);
-                    intersect(backgroundPath, backgroundNoRepeatPath);
-                    canvas.drawPath(backgroundPath, backgroundImagePaint);
+                    intersect(backgroundNoRepeatPath, backgroundPath);
+                    canvas.drawPath(backgroundNoRepeatPath, backgroundImagePaint);
                 } else {
                     // Clipping here will not be anti-aliased but at least it won't shine through the rounded corners.
                     canvas.save();
                     canvas.clipRect(params.posX, params.posY, params.posX + imageWidth, params.posY + imageHeight);
-                    canvas.drawRoundRect(backgroundBoundsF, outerRadius, outerRadius, backgroundImagePaint);
+                    canvas.drawPath(backgroundPath, backgroundImagePaint);
                     canvas.restore();
                 }
             }
         }
 
         // draw border
-        if (this.hasUniformBorder()) {
-            float borderWidth = this.getUniformBorderWidth();
-            int borderColor = this.getUniformBorderColor();
-
-            // iOS and browsers use black when no color is specified.
-            if (borderWidth > 0) {
-                float halfBorderWidth = borderWidth / 2.0f;
-                RectF middleBoundsF = new RectF(bounds.left + halfBorderWidth, bounds.top + halfBorderWidth, bounds.right - halfBorderWidth, bounds.bottom - halfBorderWidth);
-                Paint borderPaint = new Paint();
-                borderPaint.setColor(borderColor);
-                borderPaint.setAntiAlias(true);
         if (this.clipPath != null && !this.clipPath.isEmpty()) {
+            float borderWidth = this.getUniformBorderWidth();
+            if (borderWidth > 0) {
+                Paint borderPaint = new Paint();
+                borderPaint.setColor(this.getUniformBorderColor());
                 borderPaint.setStyle(Paint.Style.STROKE);
                 borderPaint.setStrokeWidth(borderWidth);
                 drawClipPath(this.clipPath, canvas, borderPaint, backgroundBoundsF, this.density);
-                } else {
-                    if (outerRadius <= 0) {
-                        borderPaint.setStyle(Paint.Style.STROKE);
-                        borderPaint.setStrokeWidth(borderWidth);
-                        canvas.drawRect(middleBoundsF, borderPaint);
-                    } else if (outerRadius >= borderWidth) {
-                        borderPaint.setStyle(Paint.Style.STROKE);
-                        borderPaint.setStrokeWidth(borderWidth);
-                        float middleRadius = Math.max(0, outerRadius - halfBorderWidth);
-                        canvas.drawRoundRect(middleBoundsF, middleRadius, middleRadius, borderPaint);
-                    } else {
-                        Path borderPath = new Path();
-                        RectF borderOuterBoundsF = new RectF(bounds.left, bounds.top, bounds.right, bounds.bottom);
-                        borderPath.addRoundRect(borderOuterBoundsF, outerRadius, outerRadius, Path.Direction.CCW);
-                        RectF borderInnerBoundsF = new RectF(bounds.left + borderWidth, bounds.top + borderWidth, bounds.right - borderWidth, bounds.bottom - borderWidth);
-                        borderPath.addRect(borderInnerBoundsF, Path.Direction.CW);
+            }
+        } else if (!this.hasBorderWidth()) {
+            // No borders trap.
+        } else if (this.hasUniformBorderColor()) {
+            // iOS and browsers use black when no color is specified.
+            if (borderLeftWidth > 0 || borderTopWidth > 0 || borderRightWidth > 0 || borderBottomWidth > 0) {
+                Paint borderPaint = new Paint();
+                borderPaint.setColor(this.getUniformBorderColor());
                 borderPaint.setStyle(Paint.Style.FILL);
+                borderPaint.setAntiAlias(true);
+                Path borderPath = new Path();
+
+                RectF borderOuterRect = new RectF(0, 0, width, height);
+                float[] borderOuterRadii = {
+                    borderTopLeftRadius, borderTopLeftRadius,
+                    borderTopRightRadius, borderTopRightRadius,
+                    borderBottomRightRadius, borderBottomRightRadius, 
+                    borderBottomLeftRadius, borderBottomLeftRadius
+                };
+                borderPath.addRoundRect(borderOuterRect, borderOuterRadii, Path.Direction.CW);
+
+                RectF borderInnerRect = new RectF(
+                    borderLeftWidth,
+                    borderTopWidth,
+                    width - borderRightWidth,
+                    height - borderBottomWidth
+                );
+                float[] borderInnerRadii = {
+                    Math.max(0, borderTopLeftRadius - borderLeftWidth), Math.max(0, borderTopLeftRadius - borderTopWidth),
+                    Math.max(0, borderTopRightRadius - borderRightWidth), Math.max(0, borderTopRightRadius - borderTopWidth),
+                    Math.max(0, borderBottomRightRadius - borderRightWidth), Math.max(0, borderBottomRightRadius - borderBottomWidth),
+                    Math.max(0, borderBottomLeftRadius - borderLeftWidth), Math.max(0, borderBottomLeftRadius - borderBottomWidth)
+                };
+                borderPath.addRoundRect(borderInnerRect, borderInnerRadii, Path.Direction.CCW);
+
                 canvas.drawPath(borderPath, borderPaint);
             }
-                }
-            }
         } else {
             float top = this.borderTopWidth;
             float right = this.borderRightWidth;
@@ -467,7 +499,7 @@ public class BorderDrawable extends ColorDrawable implements BitmapOwner {
         // If the border is transparent we will backoff less, and we will not backoff more than half a pixel or half the border width.
         float halfBorderWidth = borderWidth / 2.0f;
         float normalizedBorderAlpha = ((float) Color.alpha(borderColor)) / 255.0f;
-        return Math.min(0.5f, halfBorderWidth) * normalizedBorderAlpha;
+        return Math.min(1f, halfBorderWidth) * normalizedBorderAlpha;
     }
 
     @TargetApi(19)

android/widgets/src/main/java/org/nativescript/widgets/ImageView.java

@@ -6,11 +6,11 @@ package org.nativescript.widgets;
 import android.content.Context;
 import android.graphics.*;
 import android.graphics.drawable.Drawable;
+import android.graphics.drawable.shapes.RoundRectShape;
 
 import org.nativescript.widgets.image.BitmapOwner;
 import org.nativescript.widgets.image.Fetcher;
 import org.nativescript.widgets.image.Worker;
-
 /**
  * @author hhristov
  */
@@ -208,78 +208,108 @@ public class ImageView extends android.widget.ImageView implements BitmapOwner {
     @Override
     protected void onDraw(Canvas canvas) {
         BorderDrawable background = this.getBackground() instanceof BorderDrawable ? (BorderDrawable) this.getBackground() : null;
-        float uniformBorderWidth = background != null ? background.getUniformBorderWidth() : 0;
-        float uniformBorderRadius = background != null ? background.getUniformBorderRadius() : 0;
 
-        // floor the border width to avoid gaps between the border and the image
-        float roundedBorderWidth = (float) Math.floor(uniformBorderWidth);
-        float innerRadius = Math.max(0, uniformBorderRadius - roundedBorderWidth);
+        if (this.mBitmap != null) {
+            float borderTopLeftRadius, borderTopRightRadius, borderBottomRightRadius, borderBottomLeftRadius;
 
             if (background != null) {
                 background.draw(canvas);
+
+                borderTopLeftRadius = background.getBorderTopLeftRadius();
+                borderTopRightRadius = background.getBorderTopRightRadius();
+                borderBottomRightRadius = background.getBorderBottomRightRadius();
+                borderBottomLeftRadius = background.getBorderBottomLeftRadius();
+            } else {
+                borderTopLeftRadius = borderTopRightRadius = borderBottomRightRadius = borderBottomLeftRadius = 0;
             }
 
-        // The border width is included in the padding so there is no need for
-        // clip if there is no inner border radius.
-        if (innerRadius > 0) {
-            this.rect.set(
-                    roundedBorderWidth,
-                    roundedBorderWidth,
-                    this.getWidth() - roundedBorderWidth,
-                    this.getHeight() - roundedBorderWidth);
+            // Padding?
+            float borderTopWidth = this.getPaddingTop();
+            float borderRightWidth = this.getPaddingRight();
+            float borderBottomWidth = this.getPaddingBottom();
+            float borderLeftWidth = this.getPaddingLeft();
 
-            this.path.reset();
-            this.path.addRoundRect(rect, innerRadius, innerRadius, Path.Direction.CW);
-
-            canvas.clipPath(this.path);
-        }
+            float innerWidth, innerHeight;
 
             float rotationDegree = this.getRotationAngle();
+            boolean swap = Math.abs(rotationDegree % 180) > 45 && Math.abs(rotationDegree % 180) < 135;
 
-        if (Math.abs(rotationDegree) > ImageView.EPSILON && Math.abs((rotationDegree % 90) - 0.0) < ImageView.EPSILON) {
-            ScaleType scaleType = this.getScaleType();
+            innerWidth = this.getWidth() - borderLeftWidth - borderRightWidth;
+            innerHeight = this.getHeight() - borderTopWidth - borderBottomWidth;
+
+            // TODO: Capture all created objects here in locals and update them instead...
+            Path path = new Path();
+            float[] radii = {
+                Math.max(0, borderTopLeftRadius - borderLeftWidth), Math.max(0, borderTopLeftRadius - borderTopWidth),
+                Math.max(0, borderTopRightRadius - borderRightWidth), Math.max(0, borderTopRightRadius - borderTopWidth),
+                Math.max(0, borderBottomRightRadius - borderRightWidth), Math.max(0, borderBottomRightRadius - borderBottomWidth),
+                Math.max(0, borderBottomLeftRadius - borderLeftWidth), Math.max(0, borderBottomLeftRadius - borderBottomWidth)
+            };
+            path.addRoundRect(new RectF(borderLeftWidth, borderTopWidth, borderLeftWidth + innerWidth, borderTopWidth + innerHeight), radii, Path.Direction.CW);
+
+            Paint paint = new Paint();
+            BitmapShader bitmapShader = new BitmapShader(this.mBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
 
-            float viewWidth = this.getWidth() - (2 * roundedBorderWidth);
-            float viewHeight = this.getHeight() - (2 * roundedBorderWidth);
             float bitmapWidth = (float) mBitmap.getWidth();
             float bitmapHeight = (float) mBitmap.getHeight();
 
-            float scaleX;
-            float scaleY;
-            float decision = (rotationDegree / 90) % 2;
-            if (Math.abs(Math.floor(decision) - 0) < ImageView.EPSILON) {
-                scaleX = viewWidth / bitmapWidth;
-                scaleY = viewHeight / bitmapHeight;
-            } else {
-                scaleX = viewHeight / bitmapWidth;
-                scaleY = viewWidth / bitmapHeight;
-            }
-
-            float scale = 1.0f;
-
-            if (scaleType == ScaleType.FIT_CENTER || scaleType == ScaleType.MATRIX) {
-                scale = (scaleX < scaleY) ? scaleX : scaleY;
-            } else if (scaleType == ScaleType.CENTER_CROP) {
-                scale = (scaleX < scaleY) ? scaleY : scaleX;
-            }
-
             Matrix matrix = this.mMatrix;
             matrix.reset();
 
-            if (scaleType == ScaleType.CENTER_CROP || scaleType == ScaleType.FIT_CENTER || scaleType == ScaleType.MATRIX) {
-                matrix.postScale(scale, scale);
-                matrix.postTranslate(-(bitmapWidth * scale) / 2, -(bitmapHeight * scale) / 2);
-            } else if (scaleType == ScaleType.FIT_XY) {
-                matrix.postScale(scaleX, scaleY);
-                matrix.postTranslate(-((bitmapWidth * scaleX) + roundedBorderWidth) / 2, -((bitmapHeight * scaleY) + roundedBorderWidth) / 2);
+            matrix.postRotate(rotationDegree, bitmapWidth / 2, bitmapHeight / 2);
+            if (swap) {
+                matrix.postTranslate((bitmapHeight - bitmapWidth) / 2, (bitmapWidth - bitmapHeight) / 2);
+                float temp = bitmapWidth;
+                bitmapWidth = bitmapHeight;
+                bitmapHeight = temp;
             }
 
-            matrix.postRotate(rotationDegree);
-            matrix.postTranslate(viewWidth / 2 + roundedBorderWidth, viewHeight / 2 + roundedBorderWidth);
+            float fittingScaleX = innerWidth / bitmapWidth;
+            float fittingScaleY = innerHeight / bitmapHeight;
 
-            canvas.drawBitmap(this.mBitmap, matrix, null);
-        } else {
-            super.onDraw(canvas);
+            float uniformScale;
+            float pivotX, pivotY;
+            switch(this.getScaleType()) {
+                case FIT_CENTER: // aspectFit
+                    uniformScale = Math.min(fittingScaleX, fittingScaleY);
+                    matrix.postTranslate((innerWidth - bitmapWidth) / 2, (innerHeight - bitmapHeight) / 2);
+                    matrix.postScale(uniformScale, uniformScale, innerWidth / 2, innerHeight / 2);
+                    canvas.clipRect(
+                        borderLeftWidth + (innerWidth - bitmapWidth * uniformScale) / 2,
+                        borderTopWidth + (innerHeight - bitmapHeight * uniformScale) / 2,
+                        borderLeftWidth + (innerWidth + bitmapWidth * uniformScale) / 2,
+                        borderTopWidth + (innerHeight + bitmapHeight * uniformScale) / 2
+                    );
+                    break;
+                case CENTER_CROP: // aspectFill
+                    uniformScale = Math.max(fittingScaleX, fittingScaleY);
+                    matrix.postTranslate((innerWidth - bitmapWidth) / 2, (innerHeight - bitmapHeight) / 2);
+                    matrix.postScale(uniformScale, uniformScale, innerWidth / 2, innerHeight / 2);
+                    canvas.clipRect(
+                        borderLeftWidth + (innerWidth - bitmapWidth * uniformScale) / 2,
+                        borderTopWidth + (innerHeight - bitmapHeight * uniformScale) / 2,
+                        borderLeftWidth + (innerWidth + bitmapWidth * uniformScale) / 2,
+                        borderTopWidth + (innerHeight + bitmapHeight * uniformScale) / 2
+                    );
+                    break;
+                case FIT_XY: // fill
+                    matrix.postScale(fittingScaleX, fittingScaleY);
+                    break;
+                case MATRIX: // none
+                    canvas.clipRect(
+                        borderLeftWidth,
+                        borderTopWidth,
+                        borderLeftWidth + bitmapWidth,
+                        borderTopWidth + bitmapHeight
+                    );
+                    break;
+            }
+            matrix.postTranslate(borderLeftWidth, borderTopWidth);
+            bitmapShader.setLocalMatrix(matrix);
+            paint.setAntiAlias(true);
+            paint.setFilterBitmap(true);
+            paint.setShader(bitmapShader);
+            canvas.drawPath(path, paint);
         }
     }
 

build.android.sh

@@ -15,7 +15,7 @@ mkdir dist/package/platforms
 echo "Build android"
 mkdir dist/package/platforms/android
 cd android
-./gradlew assembleRelease
+./gradlew --quiet assembleRelease
 cd ..
 cp android/widgets/build/outputs/aar/widgets-release.aar dist/package/platforms/android/widgets-release.aar
 

build.sh

@@ -15,7 +15,7 @@ mkdir dist/package/platforms
 echo "Build android"
 mkdir dist/package/platforms/android
 cd android
-./gradlew assembleRelease
+./gradlew --quiet assembleRelease
 cd ..
 cp android/widgets/build/outputs/aar/widgets-release.aar dist/package/platforms/android/widgets-release.aar
 

ios/build.sh

@@ -4,10 +4,10 @@ echo "Set exit on simple errors"
 set -e
 
 echo "Build for iphonesimulator"
-xcodebuild -project TNSWidgets/TNSWidgets.xcodeproj -sdk iphonesimulator -target TNSWidgets -configuration Release clean build CONFIGURATION_BUILD_DIR=build/Release-iphonesimulator
+xcodebuild -project TNSWidgets/TNSWidgets.xcodeproj -sdk iphonesimulator -target TNSWidgets -configuration Release clean build CONFIGURATION_BUILD_DIR=build/Release-iphonesimulator -quiet
 
 echo "Build for iphoneos"
-xcodebuild -project TNSWidgets/TNSWidgets.xcodeproj -sdk iphoneos -target TNSWidgets -configuration Release clean build CONFIGURATION_BUILD_DIR=build/Release-iphoneos CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO
+xcodebuild -project TNSWidgets/TNSWidgets.xcodeproj -sdk iphoneos -target TNSWidgets -configuration Release clean build CONFIGURATION_BUILD_DIR=build/Release-iphoneos CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO -quiet
 
 echo "Build fat framework at TNSWidgets/build/TNSWidgets.framework"
 rm -rf TNSWidgets/build/TNSWidgets.framework