X-Git-Url: https://git.ktnx.net/?p=mobile-ledger.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fnet%2Fktnx%2Fmobileledger%2Fui%2Ftemplates%2FTemplateListDivider.java;fp=app%2Fsrc%2Fmain%2Fjava%2Fnet%2Fktnx%2Fmobileledger%2Fui%2Ftemplates%2FTemplateListDivider.java;h=9860e80490946d3316bc2b4147ffcaab62a54f31;hp=0000000000000000000000000000000000000000;hb=ed482a14c98fe458d17f57a3174a092f0e042f6f;hpb=beab26c03d4fe4d5b0be58fc111728bc45aea07b

diff --git a/app/src/main/java/net/ktnx/mobileledger/ui/templates/TemplateListDivider.java b/app/src/main/java/net/ktnx/mobileledger/ui/templates/TemplateListDivider.java
new file mode 100644
index 00000000..9860e804
--- /dev/null
+++ b/app/src/main/java/net/ktnx/mobileledger/ui/templates/TemplateListDivider.java
@@ -0,0 +1,168 @@
+/*
+ * 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);
+    }
+}