mirror of
https://github.com/bggRGjQaUbCoE/PiliPlus.git
synced 2026-04-20 11:08:03 +08:00
refa: segment progressbar
Signed-off-by: dom <githubaccount56556@proton.me>
This commit is contained in:
dom
@@ -1,23 +1,43 @@
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import 'package:flutter/material.dart';
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/*
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* This file is part of PiliPlus
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*
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* PiliPlus 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
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* (at your option) any later version.
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*
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* PiliPlus 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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*
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* You should have received a copy of the GNU General Public License
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* along with PiliPlus. If not, see <https://www.gnu.org/licenses/>.
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*/
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class Segment {
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import 'package:flutter/foundation.dart' show listEquals, kDebugMode;
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import 'package:flutter/gestures.dart' show TapGestureRecognizer;
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart' show BoxHitTestEntry;
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sealed class BaseSegment {
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final double start;
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final double end;
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final Color color;
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final String? title;
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final String? url;
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final int? from;
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final int? to;
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Segment(
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this.start,
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this.end,
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this.color, [
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this.title,
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this.url,
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this.from,
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this.to,
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]);
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BaseSegment({
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required this.start,
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required this.end,
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});
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}
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class Segment extends BaseSegment {
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final Color color;
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Segment({
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required super.start,
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required super.end,
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required this.color,
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});
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@override
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bool operator ==(Object other) {
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@@ -25,9 +45,38 @@ class Segment {
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return true;
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}
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if (other is Segment) {
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return start == other.start && end == other.end && color == other.color;
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}
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return false;
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}
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@override
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int get hashCode => Object.hash(start, end, color);
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}
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class ViewPointSegment extends BaseSegment {
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final String? title;
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final String? url;
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final int? from;
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final int? to;
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ViewPointSegment({
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required super.start,
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required super.end,
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this.title,
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this.url,
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this.from,
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this.to,
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});
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@override
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bool operator ==(Object other) {
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if (identical(this, other)) {
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return true;
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}
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if (other is ViewPointSegment) {
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return start == other.start &&
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end == other.end &&
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color == other.color &&
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title == other.title &&
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url == other.url &&
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from == other.from &&
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@@ -37,116 +86,284 @@ class Segment {
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}
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@override
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int get hashCode => Object.hash(start, end, color, title, url, from, to);
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int get hashCode => Object.hash(start, end, title, url, from, to);
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}
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class SegmentProgressBar extends CustomPainter {
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final List<Segment> segmentColors;
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double? _defHeight;
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SegmentProgressBar({
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required this.segmentColors,
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class SegmentProgressBar extends BaseSegmentProgressBar<Segment> {
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const SegmentProgressBar({
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super.key,
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super.height = 3.5,
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required super.segments,
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});
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@override
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void paint(Canvas canvas, Size size) {
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RenderObject createRenderObject(BuildContext context) {
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return RenderProgressBar(
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height: height,
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segments: segments,
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);
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}
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}
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class RenderProgressBar extends BaseRenderProgressBar<Segment> {
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RenderProgressBar({
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required super.height,
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required super.segments,
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});
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@override
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void paint(PaintingContext context, Offset offset) {
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final size = this.size;
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final canvas = context.canvas;
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final paint = Paint()..style = PaintingStyle.fill;
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for (int i = 0; i < segmentColors.length; i++) {
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final item = segmentColors[i];
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paint.color = item.color;
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for (final segment in segments) {
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paint.color = segment.color;
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final segmentStart = segment.start * size.width;
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final segmentEnd = segment.end * size.width;
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if (segmentEnd > segmentStart ||
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(segmentEnd == segmentStart && segmentStart > 0)) {
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canvas.drawRect(
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Rect.fromLTWH(
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segmentStart,
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0,
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segmentEnd == segmentStart ? 2 : segmentEnd - segmentStart,
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size.height,
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),
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paint,
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);
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}
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}
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}
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}
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class ViewPointSegmentProgressBar
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extends BaseSegmentProgressBar<ViewPointSegment> {
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const ViewPointSegmentProgressBar({
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super.key,
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super.height = 3.5,
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required super.segments,
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this.onSeek,
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});
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final ValueSetter<Duration>? onSeek;
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@override
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RenderObject createRenderObject(BuildContext context) {
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return RenderViewPointProgressBar(
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height: height,
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segments: segments,
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onSeek: onSeek,
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);
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}
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@override
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void updateRenderObject(
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BuildContext context,
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RenderViewPointProgressBar renderObject,
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) {
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renderObject
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..height = height
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..segments = segments
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..onSeek = onSeek;
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}
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}
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class RenderViewPointProgressBar
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extends BaseRenderProgressBar<ViewPointSegment> {
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RenderViewPointProgressBar({
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required super.height,
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required super.segments,
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ValueSetter<Duration>? onSeek,
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}) : _onSeek = onSeek,
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_hitTestSelf = onSeek != null {
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if (onSeek != null) {
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_tapGestureRecognizer = TapGestureRecognizer()..onTapUp = _onTapUp;
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}
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}
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static const double barHeight = 15.0;
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@override
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Size computeDryLayout(BoxConstraints constraints) {
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return constraints.constrain(Size(constraints.maxWidth, barHeight));
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}
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@override
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void paint(PaintingContext context, Offset offset) {
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final size = this.size;
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final canvas = context.canvas;
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final paint = Paint()..style = PaintingStyle.fill;
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canvas.drawRect(
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Rect.fromLTWH(0, 0, size.width, barHeight),
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paint..color = Colors.grey[600]!.withValues(alpha: 0.45),
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);
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paint.color = Colors.black.withValues(alpha: 0.5);
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for (int index = 0; index < segments.length; index++) {
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final isFirst = index == 0;
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final item = segments[index];
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final segmentStart = item.start * size.width;
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final segmentEnd = item.end * size.width;
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if (segmentEnd > segmentStart ||
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(segmentEnd == segmentStart && segmentStart > 0)) {
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if (item.title != null) {
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double fontSize = 10;
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double fontSize = 10;
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_defHeight ??=
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(TextPainter(
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text: TextSpan(
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text: item.title,
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style: TextStyle(
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fontSize: fontSize,
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),
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),
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textDirection: TextDirection.ltr,
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)..layout()).height +
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2;
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TextPainter getTextPainter() => TextPainter(
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text: TextSpan(
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text: item.title,
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style: TextStyle(
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color: Colors.white,
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fontSize: fontSize,
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height: 1,
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),
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TextPainter getTextPainter() => TextPainter(
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text: TextSpan(
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text: item.title,
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style: TextStyle(
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color: Colors.white,
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fontSize: fontSize,
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height: 1,
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),
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strutStyle: StrutStyle(leading: 0, height: 1, fontSize: fontSize),
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textDirection: TextDirection.ltr,
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)..layout();
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),
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strutStyle: StrutStyle(leading: 0, height: 1, fontSize: fontSize),
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textDirection: TextDirection.ltr,
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)..layout();
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TextPainter textPainter = getTextPainter();
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TextPainter textPainter = getTextPainter();
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late double prevStart;
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if (i != 0) {
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prevStart = segmentColors[i - 1].start * size.width;
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}
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double width = i == 0 ? segmentStart : segmentStart - prevStart;
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while (textPainter.width > width - 2 && fontSize >= 2) {
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fontSize -= 0.5;
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textPainter = getTextPainter();
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}
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if (i == 0) {
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canvas.drawRect(
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Rect.fromLTRB(
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0,
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-_defHeight!,
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size.width,
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0,
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),
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Paint()..color = Colors.grey[600]!.withValues(alpha: 0.45),
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);
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}
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canvas.drawRect(
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Rect.fromLTWH(
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segmentStart,
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-_defHeight!,
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segmentEnd == segmentStart ? 2 : segmentEnd - segmentStart,
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size.height + _defHeight!,
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),
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paint,
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);
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double textX = i == 0
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? (segmentStart - textPainter.width) / 2
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: (segmentStart - prevStart - textPainter.width) / 2 +
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prevStart +
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1;
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double textY = (-_defHeight! - textPainter.height) / 2;
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textPainter.paint(canvas, Offset(textX, textY));
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} else {
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canvas.drawRect(
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Rect.fromLTWH(
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segmentStart,
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0,
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segmentEnd == segmentStart ? 2 : segmentEnd - segmentStart,
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size.height,
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),
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paint,
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);
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late double prevStart;
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if (!isFirst) {
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prevStart = segments[index - 1].start * size.width;
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}
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final width = isFirst ? segmentStart : segmentStart - prevStart;
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while (textPainter.width > width - 2 && fontSize >= 2) {
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fontSize -= 0.5;
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textPainter.dispose();
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textPainter = getTextPainter();
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}
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canvas.drawRect(
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Rect.fromLTWH(
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segmentStart,
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0,
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segmentEnd == segmentStart ? 2 : segmentEnd - segmentStart,
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barHeight + height,
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),
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paint,
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);
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final textX = isFirst
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? (segmentStart - textPainter.width) / 2
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: (segmentStart - prevStart - textPainter.width) / 2 +
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prevStart +
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1;
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final textY = (barHeight - textPainter.height) / 2;
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textPainter.paint(canvas, Offset(textX, textY));
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}
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}
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}
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ValueSetter<Duration>? _onSeek;
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set onSeek(ValueSetter<Duration>? value) {
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if (_onSeek == value) {
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return;
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}
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_onSeek = value;
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}
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TapGestureRecognizer? _tapGestureRecognizer;
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@override
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bool shouldRepaint(SegmentProgressBar oldDelegate) {
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return segmentColors != oldDelegate.segmentColors;
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void dispose() {
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_onSeek = null;
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_tapGestureRecognizer
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?..onTapUp = null
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..dispose();
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_tapGestureRecognizer = null;
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super.dispose();
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}
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final bool _hitTestSelf;
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@override
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bool hitTestSelf(Offset position) => _hitTestSelf;
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@override
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void handleEvent(PointerEvent event, BoxHitTestEntry entry) {
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if (event is PointerDownEvent) {
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_tapGestureRecognizer?.addPointer(event);
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}
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}
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void _onTapUp(TapUpDetails details) {
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try {
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final seg = details.localPosition.dx / size.width;
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final item = _segments
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.where((item) => item.start >= seg)
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.reduce((a, b) => a.start < b.start ? a : b);
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if (item.from case final from?) {
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_onSeek?.call(Duration(seconds: from));
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}
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// if (kDebugMode) debugPrint('${item.title},,${item.from}');
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} catch (e) {
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if (kDebugMode) rethrow;
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}
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}
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}
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abstract class BaseSegmentProgressBar<T extends BaseSegment>
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extends LeafRenderObjectWidget {
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const BaseSegmentProgressBar({
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super.key,
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this.height = 3.5,
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required this.segments,
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});
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final double height;
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final List<T> segments;
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@override
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void updateRenderObject(
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BuildContext context,
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BaseRenderProgressBar renderObject,
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) {
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renderObject
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..height = height
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..segments = segments;
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}
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}
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class BaseRenderProgressBar<T extends BaseSegment> extends RenderBox {
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BaseRenderProgressBar({
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required double height,
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required List<T> segments,
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ValueSetter<int>? onSeek,
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}) : _height = height,
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_segments = segments;
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double _height;
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double get height => _height;
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set height(double value) {
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if (_height == value) return;
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_height = value;
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markNeedsLayout();
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}
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List<T> _segments;
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List<T> get segments => _segments;
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set segments(List<T> value) {
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if (listEquals(_segments, value)) return;
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_segments = value;
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markNeedsPaint();
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}
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@override
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void performLayout() {
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size = computeDryLayout(constraints);
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}
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@override
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Size computeDryLayout(BoxConstraints constraints) {
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return constraints.constrain(Size(constraints.maxWidth, height));
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}
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@override
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bool get isRepaintBoundary => true;
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}
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Reference in New Issue
Block a user