package androidx.cardview.widget; import android.content.res.ColorStateList; import android.content.res.Resources; import android.graphics.Canvas; import android.graphics.ColorFilter; import android.graphics.LinearGradient; import android.graphics.Paint; import android.graphics.Path; import android.graphics.RadialGradient; import android.graphics.Rect; import android.graphics.RectF; import android.graphics.Shader; import android.graphics.drawable.Drawable; import androidx.annotation.Nullable; import androidx.cardview.R; public class RoundRectDrawableWithShadow extends Drawable { private static final double COS_45 = Math.cos(Math.toRadians(45.0d)); private static final float SHADOW_MULTIPLIER = 1.5f; public static RoundRectHelper sRoundRectHelper; private boolean mAddPaddingForCorners = true; private ColorStateList mBackground; private final RectF mCardBounds; private float mCornerRadius; private Paint mCornerShadowPaint; private Path mCornerShadowPath; private boolean mDirty = true; private Paint mEdgeShadowPaint; private final int mInsetShadow; private Paint mPaint; private boolean mPrintedShadowClipWarning = false; private float mRawMaxShadowSize; private float mRawShadowSize; private final int mShadowEndColor; private float mShadowSize; private final int mShadowStartColor; public interface RoundRectHelper { void drawRoundRect(Canvas canvas, RectF rectF, float f, Paint paint); } public RoundRectDrawableWithShadow(Resources resources, ColorStateList colorStateList, float f, float f2, float f3) { this.mShadowStartColor = resources.getColor(R.color.cardview_shadow_start_color); this.mShadowEndColor = resources.getColor(R.color.cardview_shadow_end_color); this.mInsetShadow = resources.getDimensionPixelSize(R.dimen.cardview_compat_inset_shadow); this.mPaint = new Paint(5); setBackground(colorStateList); Paint paint = new Paint(5); this.mCornerShadowPaint = paint; paint.setStyle(Paint.Style.FILL); this.mCornerRadius = (float) ((int) (f + 0.5f)); this.mCardBounds = new RectF(); Paint paint2 = new Paint(this.mCornerShadowPaint); this.mEdgeShadowPaint = paint2; paint2.setAntiAlias(false); setShadowSize(f2, f3); } private void buildComponents(Rect rect) { float f = this.mRawMaxShadowSize; float f2 = 1.5f * f; this.mCardBounds.set(((float) rect.left) + f, ((float) rect.top) + f2, ((float) rect.right) - f, ((float) rect.bottom) - f2); buildShadowCorners(); } private void buildShadowCorners() { float f = this.mCornerRadius; RectF rectF = new RectF(-f, -f, f, f); RectF rectF2 = new RectF(rectF); float f2 = this.mShadowSize; rectF2.inset(-f2, -f2); Path path = this.mCornerShadowPath; if (path == null) { this.mCornerShadowPath = new Path(); } else { path.reset(); } this.mCornerShadowPath.setFillType(Path.FillType.EVEN_ODD); this.mCornerShadowPath.moveTo(-this.mCornerRadius, 0.0f); this.mCornerShadowPath.rLineTo(-this.mShadowSize, 0.0f); this.mCornerShadowPath.arcTo(rectF2, 180.0f, 90.0f, false); this.mCornerShadowPath.arcTo(rectF, 270.0f, -90.0f, false); this.mCornerShadowPath.close(); float f3 = this.mCornerRadius; float f4 = f3 / (this.mShadowSize + f3); Paint paint = this.mCornerShadowPaint; float f5 = this.mCornerRadius + this.mShadowSize; int i = this.mShadowStartColor; paint.setShader(new RadialGradient(0.0f, 0.0f, f5, new int[]{i, i, this.mShadowEndColor}, new float[]{0.0f, f4, 1.0f}, Shader.TileMode.CLAMP)); Paint paint2 = this.mEdgeShadowPaint; float f6 = this.mCornerRadius; float f7 = this.mShadowSize; int i2 = this.mShadowStartColor; paint2.setShader(new LinearGradient(0.0f, (-f6) + f7, 0.0f, (-f6) - f7, new int[]{i2, i2, this.mShadowEndColor}, new float[]{0.0f, 0.5f, 1.0f}, Shader.TileMode.CLAMP)); this.mEdgeShadowPaint.setAntiAlias(false); } public static float calculateHorizontalPadding(float f, float f2, boolean z2) { if (!z2) { return f; } return (float) (((1.0d - COS_45) * ((double) f2)) + ((double) f)); } public static float calculateVerticalPadding(float f, float f2, boolean z2) { if (!z2) { return f * 1.5f; } return (float) (((1.0d - COS_45) * ((double) f2)) + ((double) (f * 1.5f))); } private void drawShadow(Canvas canvas) { float f = this.mCornerRadius; float f2 = (-f) - this.mShadowSize; float f3 = (this.mRawShadowSize / 2.0f) + f + ((float) this.mInsetShadow); float f4 = f3 * 2.0f; boolean z2 = this.mCardBounds.width() - f4 > 0.0f; boolean z3 = this.mCardBounds.height() - f4 > 0.0f; int save = canvas.save(); RectF rectF = this.mCardBounds; canvas.translate(rectF.left + f3, rectF.top + f3); canvas.drawPath(this.mCornerShadowPath, this.mCornerShadowPaint); if (z2) { canvas.drawRect(0.0f, f2, this.mCardBounds.width() - f4, -this.mCornerRadius, this.mEdgeShadowPaint); } canvas.restoreToCount(save); int save2 = canvas.save(); RectF rectF2 = this.mCardBounds; canvas.translate(rectF2.right - f3, rectF2.bottom - f3); canvas.rotate(180.0f); canvas.drawPath(this.mCornerShadowPath, this.mCornerShadowPaint); if (z2) { canvas.drawRect(0.0f, f2, this.mCardBounds.width() - f4, (-this.mCornerRadius) + this.mShadowSize, this.mEdgeShadowPaint); } canvas.restoreToCount(save2); int save3 = canvas.save(); RectF rectF3 = this.mCardBounds; canvas.translate(rectF3.left + f3, rectF3.bottom - f3); canvas.rotate(270.0f); canvas.drawPath(this.mCornerShadowPath, this.mCornerShadowPaint); if (z3) { canvas.drawRect(0.0f, f2, this.mCardBounds.height() - f4, -this.mCornerRadius, this.mEdgeShadowPaint); } canvas.restoreToCount(save3); int save4 = canvas.save(); RectF rectF4 = this.mCardBounds; canvas.translate(rectF4.right - f3, rectF4.top + f3); canvas.rotate(90.0f); canvas.drawPath(this.mCornerShadowPath, this.mCornerShadowPaint); if (z3) { canvas.drawRect(0.0f, f2, this.mCardBounds.height() - f4, -this.mCornerRadius, this.mEdgeShadowPaint); } canvas.restoreToCount(save4); } private void setBackground(ColorStateList colorStateList) { if (colorStateList == null) { colorStateList = ColorStateList.valueOf(0); } this.mBackground = colorStateList; this.mPaint.setColor(colorStateList.getColorForState(getState(), this.mBackground.getDefaultColor())); } private void setShadowSize(float f, float f2) { if (f < 0.0f) { throw new IllegalArgumentException("Invalid shadow size " + f + ". Must be >= 0"); } else if (f2 >= 0.0f) { float even = (float) toEven(f); float even2 = (float) toEven(f2); if (even > even2) { if (!this.mPrintedShadowClipWarning) { this.mPrintedShadowClipWarning = true; } even = even2; } if (this.mRawShadowSize != even || this.mRawMaxShadowSize != even2) { this.mRawShadowSize = even; this.mRawMaxShadowSize = even2; this.mShadowSize = (float) ((int) ((even * 1.5f) + ((float) this.mInsetShadow) + 0.5f)); this.mDirty = true; invalidateSelf(); } } else { throw new IllegalArgumentException("Invalid max shadow size " + f2 + ". Must be >= 0"); } } private int toEven(float f) { int i = (int) (f + 0.5f); return i % 2 == 1 ? i - 1 : i; } @Override // android.graphics.drawable.Drawable public void draw(Canvas canvas) { if (this.mDirty) { buildComponents(getBounds()); this.mDirty = false; } canvas.translate(0.0f, this.mRawShadowSize / 2.0f); drawShadow(canvas); canvas.translate(0.0f, (-this.mRawShadowSize) / 2.0f); sRoundRectHelper.drawRoundRect(canvas, this.mCardBounds, this.mCornerRadius, this.mPaint); } public ColorStateList getColor() { return this.mBackground; } public float getCornerRadius() { return this.mCornerRadius; } public void getMaxShadowAndCornerPadding(Rect rect) { getPadding(rect); } public float getMaxShadowSize() { return this.mRawMaxShadowSize; } public float getMinHeight() { float f = this.mRawMaxShadowSize; float f2 = (f * 1.5f) / 2.0f; return (((this.mRawMaxShadowSize * 1.5f) + ((float) this.mInsetShadow)) * 2.0f) + (Math.max(f, f2 + this.mCornerRadius + ((float) this.mInsetShadow)) * 2.0f); } public float getMinWidth() { float f = this.mRawMaxShadowSize; float f2 = f / 2.0f; return ((this.mRawMaxShadowSize + ((float) this.mInsetShadow)) * 2.0f) + (Math.max(f, f2 + this.mCornerRadius + ((float) this.mInsetShadow)) * 2.0f); } @Override // android.graphics.drawable.Drawable public int getOpacity() { return -3; } @Override // android.graphics.drawable.Drawable public boolean getPadding(Rect rect) { int ceil = (int) Math.ceil((double) calculateVerticalPadding(this.mRawMaxShadowSize, this.mCornerRadius, this.mAddPaddingForCorners)); int ceil2 = (int) Math.ceil((double) calculateHorizontalPadding(this.mRawMaxShadowSize, this.mCornerRadius, this.mAddPaddingForCorners)); rect.set(ceil2, ceil, ceil2, ceil); return true; } public float getShadowSize() { return this.mRawShadowSize; } @Override // android.graphics.drawable.Drawable public boolean isStateful() { ColorStateList colorStateList = this.mBackground; return (colorStateList != null && colorStateList.isStateful()) || super.isStateful(); } @Override // android.graphics.drawable.Drawable public void onBoundsChange(Rect rect) { super.onBoundsChange(rect); this.mDirty = true; } @Override // android.graphics.drawable.Drawable public boolean onStateChange(int[] iArr) { ColorStateList colorStateList = this.mBackground; int colorForState = colorStateList.getColorForState(iArr, colorStateList.getDefaultColor()); if (this.mPaint.getColor() == colorForState) { return false; } this.mPaint.setColor(colorForState); this.mDirty = true; invalidateSelf(); return true; } public void setAddPaddingForCorners(boolean z2) { this.mAddPaddingForCorners = z2; invalidateSelf(); } @Override // android.graphics.drawable.Drawable public void setAlpha(int i) { this.mPaint.setAlpha(i); this.mCornerShadowPaint.setAlpha(i); this.mEdgeShadowPaint.setAlpha(i); } public void setColor(@Nullable ColorStateList colorStateList) { setBackground(colorStateList); invalidateSelf(); } @Override // android.graphics.drawable.Drawable public void setColorFilter(ColorFilter colorFilter) { this.mPaint.setColorFilter(colorFilter); } public void setCornerRadius(float f) { if (f >= 0.0f) { float f2 = (float) ((int) (f + 0.5f)); if (this.mCornerRadius != f2) { this.mCornerRadius = f2; this.mDirty = true; invalidateSelf(); return; } return; } throw new IllegalArgumentException("Invalid radius " + f + ". Must be >= 0"); } public void setMaxShadowSize(float f) { setShadowSize(this.mRawShadowSize, f); } public void setShadowSize(float f) { setShadowSize(f, this.mRawMaxShadowSize); } }