* Change LinkSpan to extend URLSpan. Allow default linkColor (if not set explicitly)

* Fit an image without dimensions to canvas width (and keep ratio)

* Add support for separate color for code blocks (#37)
This commit is contained in:
Dimitry 2018-05-22 11:15:14 +03:00 committed by GitHub
parent 35c39d0f6d
commit a02e9bc523
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 102 additions and 13 deletions

View File

@ -12,9 +12,9 @@
## Installation
```groovy
compile 'ru.noties:markwon:1.0.4'
compile 'ru.noties:markwon-image-loader:1.0.4' // optional
compile 'ru.noties:markwon-view:1.0.4' // optional
compile 'ru.noties:markwon:1.0.5'
compile 'ru.noties:markwon-image-loader:1.0.5' // optional
compile 'ru.noties:markwon-view:1.0.5' // optional
```
## Supported markdown features:

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@ -52,6 +52,7 @@ public class AsyncDrawable extends Drawable {
this.imageSize = imageSize;
}
@NonNull
public String getDestination() {
return destination;
}
@ -172,13 +173,29 @@ public class AsyncDrawable extends Drawable {
*/
@NonNull
private Rect resolveBounds() {
final Rect rect;
if (imageSizeResolver == null
|| imageSize == null) {
rect = result.getBounds();
// @since 1.0.5
final Rect bounds = result.getBounds();
if (bounds.width() > canvasWidth) {
// let's scale image down, as we do not want to expand beyond canvas width
final float ratio = (float) bounds.width() / bounds.height();
final int height = (int) (canvasWidth / ratio + .5F);
rect = new Rect(0, 0, canvasWidth, height);
} else {
rect = bounds;
}
} else {
rect = imageSizeResolver.resolveImageSize(imageSize, result.getBounds(), canvasWidth, textSize);
}
return rect;
}
}

View File

@ -31,12 +31,12 @@ public class CodeSpan extends MetricAffectingSpan implements LeadingMarginSpan {
public void updateDrawState(TextPaint ds) {
apply(ds);
if (!multiline) {
ds.bgColor = theme.getCodeBackgroundColor(ds);
ds.bgColor = theme.getCodeBackgroundColor(ds, false);
}
}
private void apply(TextPaint p) {
theme.applyCodeTextStyle(p);
theme.applyCodeTextStyle(p, multiline);
}
@Override
@ -50,7 +50,7 @@ public class CodeSpan extends MetricAffectingSpan implements LeadingMarginSpan {
if (multiline) {
paint.setStyle(Paint.Style.FILL);
paint.setColor(theme.getCodeBackgroundColor(p));
paint.setColor(theme.getCodeBackgroundColor(p, true));
final int left;
final int right;

View File

@ -3,9 +3,10 @@ package ru.noties.markwon.spans;
import android.support.annotation.NonNull;
import android.text.TextPaint;
import android.text.style.ClickableSpan;
import android.text.style.URLSpan;
import android.view.View;
public class LinkSpan extends ClickableSpan {
public class LinkSpan extends URLSpan {
public interface Resolver {
void resolve(View view, @NonNull String link);
@ -16,6 +17,7 @@ public class LinkSpan extends ClickableSpan {
private final Resolver resolver;
public LinkSpan(@NonNull SpannableTheme theme, @NonNull String link, @NonNull Resolver resolver) {
super(link);
this.theme = theme;
this.link = link;
this.resolver = resolver;

View File

@ -76,9 +76,11 @@ public class SpannableTheme {
final int linkColor = resolve(context, android.R.attr.textColorLink);
final int backgroundColor = resolve(context, android.R.attr.colorBackground);
// before 1.0.5 build had `linkColor` set, but in order for spans to use default link color
// set directly in widget (or any caller), we should not pass it here
final Dip dip = new Dip(context);
return new Builder()
.linkColor(linkColor)
.codeMultilineMargin(dip.toPx(8))
.blockMargin(dip.toPx(24))
.blockQuoteWidth(dip.toPx(4))
@ -145,9 +147,15 @@ public class SpannableTheme {
// by default - main text color
protected final int codeTextColor;
// by default - codeTextColor
protected final int codeBlockTextColor;
// by default 0.1 alpha of textColor/codeTextColor
protected final int codeBackgroundColor;
// by default codeBackgroundColor
protected final int codeBlockBackgroundColor;
// by default `width` of a space char... it's fun and games, but span doesn't have access to paint in `getLeadingMargin`
// so, we need to set this value explicitly (think of an utility method, that takes TextView/TextPaint and measures space char)
protected final int codeMultilineMargin;
@ -198,7 +206,9 @@ public class SpannableTheme {
this.bulletListItemStrokeWidth = builder.bulletListItemStrokeWidth;
this.bulletWidth = builder.bulletWidth;
this.codeTextColor = builder.codeTextColor;
this.codeBlockTextColor = builder.codeBlockTextColor;
this.codeBackgroundColor = builder.codeBackgroundColor;
this.codeBlockBackgroundColor = builder.codeBlockBackgroundColor;
this.codeMultilineMargin = builder.codeMultilineMargin;
this.codeTypeface = builder.codeTypeface;
this.codeTextSize = builder.codeTextSize;
@ -214,12 +224,30 @@ public class SpannableTheme {
this.taskListDrawable = builder.taskListDrawable;
}
/**
* @since 1.0.5
*/
public void applyLinkStyle(@NonNull TextPaint paint) {
paint.setUnderlineText(true);
if (linkColor != 0) {
paint.setColor(linkColor);
} else {
// if linkColor is not specified during configuration -> use default one
paint.setColor(paint.linkColor);
}
}
public void applyLinkStyle(@NonNull Paint paint) {
paint.setUnderlineText(true);
if (linkColor != 0) {
// by default we will be using text color
paint.setColor(linkColor);
} else {
// @since 1.0.5, if link color is specified during configuration, _try_ to use the
// default one (if provided paint is an instance of TextPaint)
if (paint instanceof TextPaint) {
paint.setColor(((TextPaint) paint).linkColor);
}
}
}
@ -278,9 +306,16 @@ public class SpannableTheme {
return width;
}
public void applyCodeTextStyle(@NonNull Paint paint) {
/**
* Modified in 1.0.5 to accept `multiline` argument
*/
public void applyCodeTextStyle(@NonNull Paint paint, boolean multiline) {
if (codeTextColor != 0) {
// @since 1.0.5 added handling of multiline code blocks
if (multiline
&& codeBlockTextColor != 0) {
paint.setColor(codeBlockTextColor);
} else if (codeTextColor != 0) {
paint.setColor(codeTextColor);
}
@ -312,13 +347,23 @@ public class SpannableTheme {
return codeMultilineMargin;
}
public int getCodeBackgroundColor(@NonNull Paint paint) {
/**
* Modified in 1.0.5 to accept `multiline` argument
*/
public int getCodeBackgroundColor(@NonNull Paint paint, boolean multiline) {
final int color;
if (codeBackgroundColor != 0) {
// @since 1.0.5 added handling of multiline code blocks
if (multiline
&& codeBlockBackgroundColor != 0) {
color = codeBlockBackgroundColor;
} else if (codeBackgroundColor != 0) {
color = codeBackgroundColor;
} else {
color = ColorUtils.applyAlpha(paint.getColor(), CODE_DEF_BACKGROUND_COLOR_ALPHA);
}
return color;
}
@ -427,6 +472,7 @@ public class SpannableTheme {
return taskListDrawable;
}
@SuppressWarnings("unused")
public static class Builder {
private int linkColor;
@ -437,7 +483,9 @@ public class SpannableTheme {
private int bulletListItemStrokeWidth;
private int bulletWidth;
private int codeTextColor;
private int codeBlockTextColor; // @since 1.0.5
private int codeBackgroundColor;
private int codeBlockBackgroundColor; // @since 1.0.5
private int codeMultilineMargin;
private Typeface codeTypeface;
private int codeTextSize;
@ -464,7 +512,9 @@ public class SpannableTheme {
this.bulletListItemStrokeWidth = theme.bulletListItemStrokeWidth;
this.bulletWidth = theme.bulletWidth;
this.codeTextColor = theme.codeTextColor;
this.codeBlockTextColor = theme.codeBlockTextColor;
this.codeBackgroundColor = theme.codeBackgroundColor;
this.codeBlockBackgroundColor = theme.codeBlockBackgroundColor;
this.codeMultilineMargin = theme.codeMultilineMargin;
this.codeTypeface = theme.codeTypeface;
this.codeTextSize = theme.codeTextSize;
@ -498,6 +548,7 @@ public class SpannableTheme {
return this;
}
@SuppressWarnings("SameParameterValue")
@NonNull
public Builder blockQuoteColor(@ColorInt int blockQuoteColor) {
this.blockQuoteColor = blockQuoteColor;
@ -528,12 +579,31 @@ public class SpannableTheme {
return this;
}
/**
* @since 1.0.5
*/
@NonNull
public Builder codeBlockTextColor(@ColorInt int codeBlockTextColor) {
this.codeBlockTextColor = codeBlockTextColor;
return this;
}
@SuppressWarnings("SameParameterValue")
@NonNull
public Builder codeBackgroundColor(@ColorInt int codeBackgroundColor) {
this.codeBackgroundColor = codeBackgroundColor;
return this;
}
/**
* @since 1.0.5
*/
@NonNull
public Builder codeBlockBackgroundColor(@ColorInt int codeBlockBackgroundColor) {
this.codeBlockBackgroundColor = codeBlockBackgroundColor;
return this;
}
@NonNull
public Builder codeMultilineMargin(@Dimension int codeMultilineMargin) {
this.codeMultilineMargin = codeMultilineMargin;