✨ Latex steps

ios/Podfile

@@ -0,0 +1,43 @@
+# Uncomment this line to define a global platform for your project
+# platform :ios, '13.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_ios_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+
+  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
+  target 'RunnerTests' do
+    inherit! :search_paths
+  end
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_ios_build_settings(target)
+  end
+end

lib/main.dart

@@ -1,10 +1,9 @@
 import 'package:flutter/material.dart';
-// 稍后我们会创建这个 SolverService
+import 'package:latext/latext.dart';
-import 'solver_service.dart';
+import 'package:simple_math_calc/models/calculation_step.dart';
-// 引入我们的数据模型
+import 'package:simple_math_calc/solver_service.dart';
-import 'models/calculation_step.dart';
 
-void main() {
+void main() async {
   runApp(const MyApp());
 }
 
@@ -116,17 +115,9 @@ class _CalculatorHomePageState extends State<CalculatorHomePage> {
                     style: Theme.of(context).textTheme.titleMedium,
                   ),
                   const SizedBox(height: 4),
-                  Text(step.explanation),
+                  SelectableText(step.explanation),
                   const SizedBox(height: 8),
-                  Center(
+                  Center(child: LaTexT(laTeXCode: Text(step.formula))),
-                    child: Text(
-                      step.formula,
-                      style: const TextStyle(
-                        fontSize: 16,
-                        fontWeight: FontWeight.bold,
-                      ),
-                    ),
-                  ),
                 ],
               ),
             ),
@@ -137,12 +128,17 @@ class _CalculatorHomePageState extends State<CalculatorHomePage> {
           color: Theme.of(context).colorScheme.primaryContainer,
           child: Padding(
             padding: const EdgeInsets.all(16.0),
-            child: Text(
+            child: Column(
-              "最终答案: ${result.finalAnswer}",
+              children: [
-              style: Theme.of(context).textTheme.titleLarge?.copyWith(
+                Text(
-                color: Theme.of(context).colorScheme.onPrimaryContainer,
+                  "最终答案:",
-              ),
+                  style: Theme.of(context).textTheme.titleLarge?.copyWith(
-              textAlign: TextAlign.center,
+                    color: Theme.of(context).colorScheme.onPrimaryContainer,
+                  ),
+                ),
+                const SizedBox(height: 8),
+                LaTexT(laTeXCode: Text(result.finalAnswer)),
+              ],
             ),
           ),
         ),

lib/solver_service.dart

@@ -144,7 +144,7 @@ class SolverService {
     steps.add(
       CalculationStep(
         title: '第一步：整理方程',
-        explanation: r'将方程整理成标准形式 $ax^2+bx+c=0$。',
+        explanation: r'将方程整理成标准形式 ax^2+bx+c=0。',
         formula:
             '\$\$${a}x^2 ${b >= 0 ? '+' : ''} ${b}x ${c >= 0 ? '+' : ''} $c = 0\$\$',
       ),

macos/Flutter/Flutter-Debug.xcconfig

@@ -1 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
 #include "ephemeral/Flutter-Generated.xcconfig"

macos/Flutter/Flutter-Release.xcconfig

@@ -1 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
 #include "ephemeral/Flutter-Generated.xcconfig"

macos/Podfile

@@ -0,0 +1,42 @@
+platform :osx, '10.15'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'ephemeral', 'Flutter-Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure \"flutter pub get\" is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Flutter-Generated.xcconfig, then run \"flutter pub get\""
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_macos_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+
+  flutter_install_all_macos_pods File.dirname(File.realpath(__FILE__))
+  target 'RunnerTests' do
+    inherit! :search_paths
+  end
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_macos_build_settings(target)
+  end
+end

pubspec.lock

@@ -1,6 +1,14 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
+  args:
+    dependency: transitive
+    description:
+      name: args
+      sha256: d0481093c50b1da8910eb0bb301626d4d8eb7284aa739614d2b394ee09e3ea04
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.7.0"
   async:
     dependency: transitive
     description:
@@ -70,11 +78,51 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "5.0.0"
+  flutter_math_fork:
+    dependency: transitive
+    description:
+      name: flutter_math_fork
+      sha256: "6d5f2f1aa57ae539ffb0a04bb39d2da67af74601d685a161aff7ce5bda5fa407"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.4"
+  flutter_svg:
+    dependency: transitive
+    description:
+      name: flutter_svg
+      sha256: b9c2ad5872518a27507ab432d1fb97e8813b05f0fc693f9d40fad06d073e0678
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.1"
   flutter_test:
     dependency: "direct dev"
     description: flutter
     source: sdk
     version: "0.0.0"
+  http:
+    dependency: transitive
+    description:
+      name: http
+      sha256: bb2ce4590bc2667c96f318d68cac1b5a7987ec819351d32b1c987239a815e007
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.5.0"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      sha256: "178d74305e7866013777bab2c3d8726205dc5a4dd935297175b19a23a2e66571"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.1.2"
+  latext:
+    dependency: "direct main"
+    description:
+      name: latext
+      sha256: "4dc2e3b8436cf8bce2d74b3af53055d56b9dc83c816fec5cf1c8f2789bf89a64"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.5.1"
   leak_tracker:
     dependency: transitive
     description:
@@ -139,6 +187,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.16.0"
+  nested:
+    dependency: transitive
+    description:
+      name: nested
+      sha256: "03bac4c528c64c95c722ec99280375a6f2fc708eec17c7b3f07253b626cd2a20"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
   path:
     dependency: transitive
     description:
@@ -147,6 +203,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.1"
+  path_parsing:
+    dependency: transitive
+    description:
+      name: path_parsing
+      sha256: "883402936929eac138ee0a45da5b0f2c80f89913e6dc3bf77eb65b84b409c6ca"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
   petitparser:
     dependency: transitive
     description:
@@ -155,6 +219,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.1.0"
+  provider:
+    dependency: transitive
+    description:
+      name: provider
+      sha256: "4e82183fa20e5ca25703ead7e05de9e4cceed1fbd1eadc1ac3cb6f565a09f272"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.1.5+1"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -208,6 +280,46 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.7.6"
+  tuple:
+    dependency: transitive
+    description:
+      name: tuple
+      sha256: a97ce2013f240b2f3807bcbaf218765b6f301c3eff91092bcfa23a039e7dd151
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.2"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      sha256: f9049c039ebfeb4cf7a7104a675823cd72dba8297f264b6637062516699fa006
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.0"
+  vector_graphics:
+    dependency: transitive
+    description:
+      name: vector_graphics
+      sha256: a4f059dc26fc8295b5921376600a194c4ec7d55e72f2fe4c7d2831e103d461e6
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.19"
+  vector_graphics_codec:
+    dependency: transitive
+    description:
+      name: vector_graphics_codec
+      sha256: "99fd9fbd34d9f9a32efd7b6a6aae14125d8237b10403b422a6a6dfeac2806146"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.13"
+  vector_graphics_compiler:
+    dependency: transitive
+    description:
+      name: vector_graphics_compiler
+      sha256: d354a7ec6931e6047785f4db12a1f61ec3d43b207fc0790f863818543f8ff0dc
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.19"
   vector_math:
     dependency: transitive
     description:
@@ -224,6 +336,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "15.0.2"
+  web:
+    dependency: transitive
+    description:
+      name: web
+      sha256: "868d88a33d8a87b18ffc05f9f030ba328ffefba92d6c127917a2ba740f9cfe4a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
+  xml:
+    dependency: transitive
+    description:
+      name: xml
+      sha256: b015a8ad1c488f66851d762d3090a21c600e479dc75e68328c52774040cf9226
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.5.0"
 sdks:
   dart: ">=3.9.2 <4.0.0"
-  flutter: ">=3.18.0-18.0.pre.54"
+  flutter: ">=3.29.0"

pubspec.yaml

@@ -35,6 +35,7 @@ dependencies:
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.8
   math_expressions: ^3.0.0
+  latext: ^0.5.1
 
 dev_dependencies:
   flutter_test: