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Bug 833800: FadedTextView should handle compound drawables. [r=lucasr]

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This commit is contained in:
Sriram Ramasubramanian 2013-09-17 13:59:10 -04:00
parent 7fe469beea
commit 92f66d6671
1 changed files with 14 additions and 1 deletions
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15
mobile/android/base/home/FadedTextView.java
View File

@ -10,6 +10,7 @@ import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.LinearGradient;
import android.graphics.Shader;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.TextView;
@ -24,6 +25,9 @@ public class FadedTextView extends TextView {
// Width of the fade effect from end of the view.
private int mFadeWidth;
// Padding for compound drawables.
private int mCompoundPadding;
public FadedTextView(Context context) {
this(context, null);
}
@ -38,6 +42,8 @@ public class FadedTextView extends TextView {
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.FadedTextView);
mFadeWidth = a.getDimensionPixelSize(R.styleable.FadedTextView_fadeWidth, 0);
a.recycle();
mCompoundPadding = getCompoundDrawablePadding();
}
/**
@ -50,11 +56,18 @@ public class FadedTextView extends TextView {
// Layout doesn't return a proper width for getWidth().
// Instead check the width of the first line, as we've restricted to just one line.
if (getLayout().getLineWidth(0) > width) {
final Drawable leftDrawable = getCompoundDrawables()[0];
int drawableWidth = 0;
if (leftDrawable != null) {
drawableWidth = leftDrawable.getIntrinsicWidth() + mCompoundPadding;
width -= drawableWidth;
}
int color = getCurrentTextColor();
float stop = ((float) (width - mFadeWidth) / (float) width);
LinearGradient gradient = new LinearGradient(0, 0, width, 0,
new int[] { color, color, 0x0 },
new float[] { 0, stop, 1.0f },
new float[] { 0, stop, 1.0f - (drawableWidth / width) },
Shader.TileMode.CLAMP);
getPaint().setShader(gradient);
} else {