+/*
+ * Copyright © 2021 Damyan Ivanov.
+ * This file is part of MoLe.
+ * MoLe is free software: you can distribute it and/or modify it
+ * under the term of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your opinion), any later version.
+ *
+ * MoLe is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License terms for details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+//
+// Substantial portions taken from DividerItemDecoration subject to the following license terms:
+//
+// Copyright 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+package net.ktnx.mobileledger.ui.templates;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+import android.view.View;
+
+import androidx.recyclerview.widget.DividerItemDecoration;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.Objects;
+
+class TemplateListDivider extends DividerItemDecoration {
+ private final Rect mBounds = new Rect();
+ private int mOrientation;
+ public TemplateListDivider(Context context, int orientation) {
+ super(context, orientation);
+ mOrientation = orientation;
+ }
+ @Override
+ public void setOrientation(int orientation) {
+ super.setOrientation(orientation);
+ mOrientation = orientation;
+ }
+ @Override
+ public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) {
+ if (parent.getLayoutManager() == null || getDrawable() == null) {
+ return;
+ }
+ if (mOrientation == VERTICAL) {
+ drawVertical(c, parent);
+ }
+ else {
+ drawHorizontal(c, parent);
+ }
+ }
+
+ private void drawVertical(Canvas canvas, RecyclerView parent) {
+ canvas.save();
+ final int left;
+ final int right;
+ //noinspection AndroidLintNewApi - NewApi lint fails to handle overrides.
+ if (parent.getClipToPadding()) {
+ left = parent.getPaddingLeft();
+ right = parent.getWidth() - parent.getPaddingRight();
+ canvas.clipRect(left, parent.getPaddingTop(), right,
+ parent.getHeight() - parent.getPaddingBottom());
+ }
+ else {
+ left = 0;
+ right = parent.getWidth();
+ }
+
+ final Drawable divider = Objects.requireNonNull(getDrawable());
+ final int childCount = parent.getChildCount();
+ final TemplatesRecyclerViewAdapter adapter =
+ (TemplatesRecyclerViewAdapter) Objects.requireNonNull(parent.getAdapter());
+ final int itemCount = adapter.getItemCount();
+ for (int i = 0; i < childCount; i++) {
+ final View child = parent.getChildAt(i);
+ final int childAdapterPosition = parent.getChildAdapterPosition(child);
+ if (adapter.getItemViewType(childAdapterPosition) ==
+ TemplatesRecyclerViewAdapter.ITEM_TYPE_DIVIDER ||
+ childAdapterPosition + 1 < itemCount &&
+ adapter.getItemViewType(childAdapterPosition + 1) ==
+ TemplatesRecyclerViewAdapter.ITEM_TYPE_DIVIDER)
+ continue;
+ parent.getDecoratedBoundsWithMargins(child, mBounds);
+ final int bottom = mBounds.bottom + Math.round(child.getTranslationY());
+ final int top = bottom - divider.getIntrinsicHeight();
+ divider.setBounds(left, top, right, bottom);
+ divider.draw(canvas);
+ }
+ canvas.restore();
+ }
+
+ private void drawHorizontal(Canvas canvas, RecyclerView parent) {
+ canvas.save();
+ final int top;
+ final int bottom;
+ //noinspection AndroidLintNewApi - NewApi lint fails to handle overrides.
+ if (parent.getClipToPadding()) {
+ top = parent.getPaddingTop();
+ bottom = parent.getHeight() - parent.getPaddingBottom();
+ canvas.clipRect(parent.getPaddingLeft(), top,
+ parent.getWidth() - parent.getPaddingRight(), bottom);
+ }
+ else {
+ top = 0;
+ bottom = parent.getHeight();
+ }
+
+ final Drawable divider = Objects.requireNonNull(getDrawable());
+ final int childCount = parent.getChildCount();
+ final TemplatesRecyclerViewAdapter adapter =
+ (TemplatesRecyclerViewAdapter) Objects.requireNonNull(parent.getAdapter());
+ final int itemCount = adapter.getItemCount();
+ for (int i = 0; i < childCount; i++) {
+ final View child = parent.getChildAt(i);
+ final int childAdapterPosition = parent.getChildAdapterPosition(child);
+ if (adapter.getItemViewType(childAdapterPosition) ==
+ TemplatesRecyclerViewAdapter.ITEM_TYPE_DIVIDER ||
+ childAdapterPosition + 1 < itemCount &&
+ adapter.getItemViewType(childAdapterPosition + 1) ==
+ TemplatesRecyclerViewAdapter.ITEM_TYPE_DIVIDER)
+ continue;
+ parent.getLayoutManager()
+ .getDecoratedBoundsWithMargins(child, mBounds);
+ final int right = mBounds.right + Math.round(child.getTranslationX());
+ final int left = right - divider.getIntrinsicWidth();
+ divider.setBounds(left, top, right, bottom);
+ divider.draw(canvas);
+ }
+ canvas.restore();
+ }
+ @Override
+ public void getItemOffsets(Rect outRect, View child, RecyclerView parent,
+ RecyclerView.State state) {
+ final int childAdapterPosition = parent.getChildAdapterPosition(child);
+ final TemplatesRecyclerViewAdapter adapter =
+ (TemplatesRecyclerViewAdapter) Objects.requireNonNull(parent.getAdapter());
+ final int itemCount = adapter.getItemCount();
+
+ if (adapter.getItemViewType(childAdapterPosition) ==
+ TemplatesRecyclerViewAdapter.ITEM_TYPE_DIVIDER ||
+ childAdapterPosition + 1 < itemCount &&
+ adapter.getItemViewType(childAdapterPosition + 1) ==
+ TemplatesRecyclerViewAdapter.ITEM_TYPE_DIVIDER)
+ return;
+
+ super.getItemOffsets(outRect, child, parent, state);
+ }
+}
projects / mobile-ledger.git / commitdiff