diff options
author | fupduck <fupduck@riseup.net> | 2018-03-05 05:45:08 -0800 |
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committer | fupduck <fupduck@riseup.net> | 2018-03-05 05:45:08 -0800 |
commit | d2a68f7f72de06b26aa6ab0a139512455ba0fe76 (patch) | |
tree | b364d18a5934736c24a1667b4728fa1032b8d327 /app/src/main/java/se/leap/bitmaskclient/views | |
parent | 69d7e4bc6d77e40407a404606b55630c35a4050b (diff) | |
parent | ac207c23d1a282b3f9cf58eee8ac24380581b77f (diff) |
Merge branch '#8808_add_hint_to_enable_always-on' into 'master'
#8808 add hint to enable always on
See merge request leap/bitmask_android!62
Diffstat (limited to 'app/src/main/java/se/leap/bitmaskclient/views')
-rw-r--r-- | app/src/main/java/se/leap/bitmaskclient/views/IconTextView.java | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/app/src/main/java/se/leap/bitmaskclient/views/IconTextView.java b/app/src/main/java/se/leap/bitmaskclient/views/IconTextView.java new file mode 100644 index 00000000..0af33c68 --- /dev/null +++ b/app/src/main/java/se/leap/bitmaskclient/views/IconTextView.java @@ -0,0 +1,96 @@ +package se.leap.bitmaskclient.views; + + +import android.content.Context; +import android.graphics.PorterDuff; +import android.graphics.drawable.Drawable; +import android.support.v7.widget.AppCompatTextView; +import android.text.Spannable; +import android.text.style.ImageSpan; +import android.util.AttributeSet; + +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +public class IconTextView extends AppCompatTextView { + + private int imageResource = 0; + /** + * Regex pattern that looks for embedded images of the format: [img src=imageName/] + */ + public static final String PATTERN = "\\Q[img src]\\E"; + + public IconTextView(Context context, AttributeSet attrs, int defStyle) { + super(context, attrs, defStyle); + } + + public IconTextView(Context context, AttributeSet attrs) { + super(context, attrs); + } + + public IconTextView(Context context) { + super(context); + } + + @Override + public void setText(CharSequence text, BufferType type) { + final Spannable spannable = getTextWithImages(getContext(), text, getLineHeight(), getCurrentTextColor()); + super.setText(spannable, BufferType.SPANNABLE); + } + + public void setIcon(int imageResource) { + this.imageResource = imageResource; + } + + private Spannable getTextWithImages(Context context, CharSequence text, int lineHeight, int colour) { + final Spannable spannable = Spannable.Factory.getInstance().newSpannable(text); + addImages(context, spannable, lineHeight, colour); + return spannable; + } + + private void addImages(Context context, Spannable spannable, int lineHeight, int colour) { + final Pattern refImg = Pattern.compile(PATTERN); + + final Matcher matcher = refImg.matcher(spannable); + while (matcher.find()) { + boolean set = true; + for (ImageSpan span : spannable.getSpans(matcher.start(), matcher.end(), ImageSpan.class)) { + if (spannable.getSpanStart(span) >= matcher.start() + && spannable.getSpanEnd(span) <= matcher.end()) { + spannable.removeSpan(span); + } else { + set = false; + break; + } + } + if (set && imageResource != 0) { + spannable.setSpan(makeImageSpan(context, imageResource, lineHeight, colour), + matcher.start(), + matcher.end(), + Spannable.SPAN_EXCLUSIVE_EXCLUSIVE + ); + } + } + } + + /** + * Create an ImageSpan for the given icon drawable. This also sets the image size and colour. + * Works best with a white, square icon because of the colouring and resizing. + * + * @param context The Android Context. + * @param drawableResId A drawable resource Id. + * @param size The desired size (i.e. width and height) of the image icon in pixels. + * Use the lineHeight of the TextView to make the image inline with the + * surrounding text. + * @param colour The colour (careful: NOT a resource Id) to apply to the image. + * @return An ImageSpan, aligned with the bottom of the text. + */ + private ImageSpan makeImageSpan(Context context, int drawableResId, int size, int colour) { + final Drawable drawable = context.getResources().getDrawable(drawableResId); + drawable.mutate(); + drawable.setColorFilter(colour, PorterDuff.Mode.MULTIPLY); + drawable.setBounds(0, 0, size, size); + return new ImageSpan(drawable, ImageSpan.ALIGN_BOTTOM); + } + +}
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