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prefs: Render line numbers in custom layout input box

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Line numbers will help reporting errors. Also, disable line breaking to
improve readability.
This commit is contained in:
Jules Aguillon 2023-12-10 19:44:50 +01:00
parent d073523125
commit dd327cc812
2 changed files with 101 additions and 21 deletions
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90
srcs/juloo.keyboard2/CustomLayoutEditDialog.java Normal file
View File

@ -0,0 +1,90 @@
package juloo.keyboard2;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.text.InputType;
import android.text.Layout;
import android.widget.EditText;
public class CustomLayoutEditDialog
{
/** Dialog for specifying a custom layout. [initial_text] is the layout
description when modifying a layout. */
public static void show(Context ctx, String initial_text,
boolean allow_remove, final Callback callback)
{
final LayoutEntryEditText input = new LayoutEntryEditText(ctx);
input.setText(initial_text);
AlertDialog.Builder dialog = new AlertDialog.Builder(ctx)
.setView(input)
.setTitle(R.string.pref_custom_layout_title)
.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener(){
public void onClick(DialogInterface _dialog, int _which)
{
callback.select(input.getText().toString());
}
})
.setNegativeButton(android.R.string.cancel, null);
// Might be true when modifying an existing layout
if (allow_remove)
dialog.setNeutralButton(R.string.pref_layouts_remove_custom, new DialogInterface.OnClickListener(){
public void onClick(DialogInterface _dialog, int _which)
{
callback.select(null);
}
});
dialog.show();
}
public interface Callback
{
/** The entered text when the user clicks "OK", [null] when the user
cancels editing. */
public void select(String text);
}
/** An editable text view that shows line numbers. */
static class LayoutEntryEditText extends EditText
{
/** Used to draw line numbers. */
Paint _ln_paint;
public LayoutEntryEditText(Context ctx)
{
super(ctx);
_ln_paint = new Paint(getPaint());
_ln_paint.setTextSize(_ln_paint.getTextSize() * 0.8f);
setHorizontallyScrolling(true);
setInputType(InputType.TYPE_CLASS_TEXT
| InputType.TYPE_TEXT_FLAG_MULTI_LINE);
}
@Override
protected void onDraw(Canvas canvas)
{
float digit_width = _ln_paint.measureText("0");
int line_count = getLineCount();
// Extra '+ 1' serves as padding.
setPadding((int)(((int)Math.log10(line_count) + 1 + 1) * digit_width), 0, 0, 0);
super.onDraw(canvas);
_ln_paint.setColor(getPaint().getColor());
Rect clip_bounds = canvas.getClipBounds();
Layout layout = getLayout();
int offset = clip_bounds.left + (int)(digit_width / 2.f);
int line = layout.getLineForVertical(clip_bounds.top);
int skipped = line;
while (line < line_count)
{
int baseline = getLineBounds(line, null);
canvas.drawText(String.valueOf(line), offset, baseline, _ln_paint);
line++;
if (baseline >= clip_bounds.bottom)
break;
}
}
}
}

32
srcs/juloo.keyboard2/LayoutsPreference.java
View File

@ -8,7 +8,6 @@ import android.content.res.Resources;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
@ -167,27 +166,18 @@ public class LayoutsPreference extends ListGroupPreference<LayoutsPreference.Lay
description when modifying a layout. */
void select_custom(final SelectionCallback callback, String initial_text)
{
final EditText input = new EditText(getContext());
input.setText(initial_text);
AlertDialog.Builder dialog = new AlertDialog.Builder(getContext())
.setView(input)
.setTitle(R.string.pref_custom_layout_title)
.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener(){
public void onClick(DialogInterface _dialog, int _which)
boolean allow_remove = callback.allow_remove() && _values.size() > 1;
CustomLayoutEditDialog.show(getContext(), initial_text, allow_remove,
new CustomLayoutEditDialog.Callback()
{
callback.select(new CustomLayout(input.getText().toString()));
}
})
.setNegativeButton(android.R.string.cancel, null);
// Might be true when modifying an existing layout
if (callback.allow_remove() && _values.size() > 1)
dialog.setNeutralButton(R.string.pref_layouts_remove_custom, new DialogInterface.OnClickListener(){
public void onClick(DialogInterface _dialog, int _which)
{
callback.select(null);
}
});
dialog.show();
public void select(String text)
{
if (text == null)
callback.select(null);
else
callback.select(new CustomLayout(text));
}
});
}
/** Called when modifying a layout. Custom layouts behave differently. */