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More control over wallpaper [1/2] #526

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More control over wallpaper [1/2] #526

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9937c11
Allow setting both wallpapers at once [1/2]
TpmKranz Jun 21, 2022
451eccd
Allow setting visible area of wallpaper [1/2]
TpmKranz Jun 25, 2022
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102 changes: 99 additions & 3 deletions app/src/main/java/com/termux/api/apis/WallpaperAPI.java
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Rect;
import android.os.IBinder;

import com.termux.api.util.ResultReturner;
Expand All @@ -20,6 +21,9 @@
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.regex.MatchResult;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class WallpaperAPI {

Expand All @@ -40,6 +44,18 @@ public static void onReceive(final Context context, final Intent intent) {
*/
public static class WallpaperService extends Service {
protected static final int DOWNLOAD_TIMEOUT = 30;
protected static final Pattern CROP_PATTERN = Pattern.compile(
"^(\\d+)?" // width
+ "(?:([x:])(\\d+))?" // height
+ "(?:\\+(\\d+)\\+(\\d+))?" // offset
+ "(%?)$" // relative
);
protected enum CROP_GROUPS { // in accordance with above arrangement
WIDTH,
SEPARATOR, HEIGHT,
XOFFSET, YOFFSET,
PERCENT
}

private static final String LOG_TAG = "WallpaperService";

Expand Down Expand Up @@ -122,16 +138,96 @@ protected void onWallpaperResult(final Intent intent, WallpaperResult result) {

if (result.wallpaper != null) {
try {
int flag = intent.hasExtra("lockscreen") ? WallpaperManager.FLAG_LOCK : WallpaperManager.FLAG_SYSTEM;
wallpaperManager.setBitmap(result.wallpaper, null, true, flag);
int which = WallpaperManager.FLAG_SYSTEM | WallpaperManager.FLAG_LOCK;
if (intent.hasExtra("lockscreen")) {
which = intent.getBooleanExtra("lockscreen", false) ? WallpaperManager.FLAG_LOCK : WallpaperManager.FLAG_SYSTEM;
}
Rect crop = null;
try {
crop = calculateWallpaperCrop(result.wallpaper, intent.getStringExtra("crop"));
} catch (IllegalArgumentException e) {
result.error = "-c ignored: " + e.getMessage();
}
wallpaperManager.setBitmap(result.wallpaper, crop, true, which);
result.message = "Wallpaper set successfully!";
} catch (IOException e) {
} catch (IOException | IllegalArgumentException e) {
result.error = "Error setting wallpaper: " + e.getMessage();
}
}
postWallpaperResult(context, intent, result);
}

private Rect calculateWallpaperCrop(Bitmap wallpaper, String cropString) throws IllegalArgumentException {
if (cropString == null) {
return null;
}
Matcher cropMatch = CROP_PATTERN.matcher(cropString);
if (cropMatch.matches()) {
MatchResult cropResult = cropMatch.toMatchResult();
int oldWidth = wallpaper.getWidth();
int oldHeight = wallpaper.getHeight();
double oldRatio = (double) oldWidth / (double) oldHeight;
Rect crop = new Rect();
String w = cropResult.group(CROP_GROUPS.WIDTH.ordinal());
String sep = cropResult.group(CROP_GROUPS.SEPARATOR.ordinal());
String h = cropResult.group(CROP_GROUPS.HEIGHT.ordinal());
String x = cropResult.group(CROP_GROUPS.XOFFSET.ordinal());
String y = cropResult.group(CROP_GROUPS.YOFFSET.ordinal());
boolean relative = "%".equals(cropResult.group(CROP_GROUPS.PERCENT.ordinal()));
if (":".equals(sep)) {
if (w == null) {
throw new IllegalArgumentException("Aspect ratio needs both width and height!");
}
int width = Integer.parseInt(w);
int height = Integer.parseInt(h);
double ratio = (double) width / (double) height;
if (ratio > oldRatio) {
crop.bottom = (int) ((double) oldWidth / ratio);
crop.right = oldWidth;
} else {
crop.bottom = oldHeight;
crop.right = (int) ((double) oldHeight * ratio);
}
} else if ("x".equals(sep) || w != null) {
double width = 0;
double height = 0;
if (w != null) {
width = Double.parseDouble(w);
height = width / oldRatio;
}
if (h != null) {
height = Double.parseDouble(h);
if (w == null) {
width = height * oldRatio;
}
}
if (relative) {
crop.right = (int) (oldWidth * width / 100);
crop.bottom = (int) (oldHeight * height / 100);
} else {
crop.right = (int) width;
crop.bottom = (int) height;
}
} else {
throw new IllegalArgumentException("No size or aspect ratio given!");
}
if (x != null) {
double xOff = Double.parseDouble(x);
double yOff = Double.parseDouble(y);
if (relative) {
xOff = (oldWidth-crop.width()) * xOff / 100;
yOff = (oldHeight-crop.height()) * yOff / 100;
}
crop.offset((int) xOff, (int) yOff);
} else {
crop.offset((oldWidth - crop.width())/2, (oldHeight - crop.height())/2);
}
return crop;
} else {
throw new IllegalArgumentException("Cannot parse crop geometry!");
}
}

protected void postWallpaperResult(final Context context, final Intent intent, final WallpaperResult result) {
ResultReturner.returnData(context, intent, out -> {
out.append(result.message).append("\n");
Expand Down