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17d3b4957a
This CL moves the bulk of the SkyView code out of the |framework| directory because the |framework| directory was redundant in Dart package import declarations. TBR=ianh@google.com Review URL: https://codereview.chromium.org/1177383006.
96 lines
3.2 KiB
Dart
96 lines
3.2 KiB
Dart
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:sky';
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import 'dart:math' as math;
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import 'package:sky/framework/net/image_cache.dart' as image_cache;
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import 'package:sky/app/view.dart';
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import 'package:sky/rendering/box.dart';
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import 'package:sky/rendering/block.dart';
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import 'package:sky/rendering/flex.dart';
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import 'package:sky/rendering/object.dart';
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import 'package:sky/rendering/paragraph.dart';
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import '../lib/solid_color_box.dart';
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class Touch {
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final double x;
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final double y;
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const Touch(this.x, this.y);
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}
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class RenderImageGrow extends RenderImage {
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final Size _startingSize;
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RenderImageGrow(String src, Size size) : _startingSize = size, super(src, size);
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double _growth = 0.0;
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double get growth => _growth;
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void set growth(double value) {
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_growth = value;
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double newWidth = _startingSize.width == null ? null : _startingSize.width + growth;
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double newHeight = _startingSize.height == null ? null : _startingSize.height + growth;
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requestedSize = new Size(newWidth, newHeight);
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}
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}
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AppView app;
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RenderImageGrow image;
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Map<int, Touch> touches = new Map();
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void handleEvent(event) {
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if (event is PointerEvent) {
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if (event.type == 'pointermove')
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image.growth = math.max(0.0, image.growth + event.x - touches[event.pointer].x);
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touches[event.pointer] = new Touch(event.x, event.y);
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}
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}
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void main() {
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void addFlexChildSolidColor(RenderFlex parent, Color backgroundColor, { int flex: 0 }) {
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RenderSolidColorBox child = new RenderSolidColorBox(backgroundColor);
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parent.add(child);
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child.parentData.flex = flex;
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}
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var row = new RenderFlex(direction: FlexDirection.horizontal);
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// Left cell
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addFlexChildSolidColor(row, const Color(0xFF00D2B8), flex: 1);
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// Resizeable image
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image = new RenderImageGrow("https://www.dartlang.org/logos/dart-logo.png",
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new Size(100.0, null));
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var padding = new RenderPadding(padding: const EdgeDims.all(10.0), child: image);
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row.add(padding);
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RenderFlex column = new RenderFlex(direction: FlexDirection.vertical);
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// Top cell
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addFlexChildSolidColor(column, const Color(0xFF55DDCA), flex: 1);
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// The internet is a beautiful place. https://baconipsum.com/
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String meatyString = """Bacon ipsum dolor amet ham fatback tri-tip, prosciutto
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porchetta bacon kevin meatball meatloaf pig beef ribs chicken. Brisket ribeye
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andouille leberkas capicola meatloaf. Chicken pig ball tip pork picanha bresaola
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alcatra. Pork pork belly alcatra, flank chuck drumstick biltong doner jowl.
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Pancetta meatball tongue tenderloin rump tail jowl boudin.""";
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RenderParagraph paragraph = new RenderParagraph(text: meatyString, color: const Color(0xFF009900));
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padding = new RenderPadding(padding: const EdgeDims.all(10.0), child: paragraph);
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column.add(padding);
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// Bottom cell
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addFlexChildSolidColor(column, const Color(0xFF0081C6), flex: 2);
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row.add(column);
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column.parentData.flex = 8;
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RenderDecoratedBox root = new RenderDecoratedBox(
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decoration: new BoxDecoration(backgroundColor: const Color(0xFFFFFFFF)),
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child: row
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);
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app = new AppView(root: root);
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view.setEventCallback(handleEvent);
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}
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