153 lines
3.9 KiB
Java
153 lines
3.9 KiB
Java
/* Communication module for Android terminals. -*- c-file-style: "GNU" -*-
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Copyright (C) 2023-2024 Free Software Foundation, Inc.
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This file is part of GNU Emacs.
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GNU Emacs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at
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your option) any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
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package org.gnu.emacs;
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import android.content.Context;
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import android.view.View;
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import android.view.View.MeasureSpec;
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import android.view.ViewGroup;
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/* This ``view group'' implements a container widget for multiple
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buttons of the type found in pop-up dialogs. It is used when
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displaying a dialog box that contains more than three buttons, as
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the default dialog box widget is not capable of holding more than
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that many. */
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public final class EmacsDialogButtonLayout extends ViewGroup
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{
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public
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EmacsDialogButtonLayout (Context context)
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{
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super (context);
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}
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@Override
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protected void
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onMeasure (int widthMeasureSpec, int heightMeasureSpec)
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{
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int width, count, i, x, y, height, spec, tempSpec;
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View view;
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/* Obtain the width of this widget and create the measure
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specification used to measure children. */
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width = MeasureSpec.getSize (widthMeasureSpec);
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spec = MeasureSpec.makeMeasureSpec (0, MeasureSpec.UNSPECIFIED);
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tempSpec
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= MeasureSpec.makeMeasureSpec (width, MeasureSpec.AT_MOST);
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x = y = height = 0;
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/* Run through each widget. */
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count = getChildCount ();
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for (i = 0; i < count; ++i)
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{
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view = getChildAt (i);
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/* Measure this view. */
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view.measure (spec, spec);
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if (width - x < view.getMeasuredWidth ())
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{
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/* Move onto the next line, unless this line is empty. */
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if (x != 0)
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{
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y += height;
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height = x = 0;
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}
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if (view.getMeasuredWidth () > width)
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/* Measure the view again, this time forcing it to be at
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most width wide, if it is not already. */
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view.measure (tempSpec, spec);
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}
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height = Math.max (height, view.getMeasuredHeight ());
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x += view.getMeasuredWidth ();
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}
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/* Now set the measured size of this widget. */
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setMeasuredDimension (width, y + height);
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}
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@Override
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protected void
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onLayout (boolean changed, int left, int top, int right,
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int bottom)
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{
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int width, count, i, x, y, height, spec, tempSpec;
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View view;
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/* Obtain the width of this widget and create the measure
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specification used to measure children. */
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width = getMeasuredWidth ();
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spec = MeasureSpec.makeMeasureSpec (0, MeasureSpec.UNSPECIFIED);
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tempSpec
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= MeasureSpec.makeMeasureSpec (width, MeasureSpec.AT_MOST);
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x = y = height = 0;
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/* Run through each widget. */
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count = getChildCount ();
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for (i = 0; i < count; ++i)
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{
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view = getChildAt (i);
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/* Measure this view. */
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view.measure (spec, spec);
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if (width - x < view.getMeasuredWidth ())
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{
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/* Move onto the next line, unless this line is empty. */
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if (x != 0)
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{
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y += height;
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height = x = 0;
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}
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if (view.getMeasuredWidth () > width)
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/* Measure the view again, this time forcing it to be at
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most width wide, if it is not already. */
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view.measure (tempSpec, spec);
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}
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/* Now assign this view its position. */
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view.layout (x, y, x + view.getMeasuredWidth (),
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y + view.getMeasuredHeight ());
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/* And move on to the next widget. */
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height = Math.max (height, view.getMeasuredHeight ());
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x += view.getMeasuredWidth ();
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}
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}
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};
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