[Gallery] Fix directory structure (#312)

gallery/lib/themes/gallery_theme_data.dart

@@ -0,0 +1,96 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/material.dart';
+import 'package:google_fonts/google_fonts.dart';
+
+class GalleryThemeData {
+  static const _lightFillColor = Colors.black;
+  static const _darkFillColor = Colors.white;
+
+  static Color _lightFocusColor = Colors.black.withOpacity(0.12);
+  static Color _darkFocusColor = Colors.white.withOpacity(0.12);
+
+  static ThemeData lightThemeData =
+      themeData(lightColorScheme, _lightFocusColor);
+  static ThemeData darkThemeData = themeData(darkColorScheme, _darkFocusColor);
+
+  static ThemeData themeData(ColorScheme colorScheme, Color focusColor) {
+    return ThemeData(
+      colorScheme: colorScheme,
+      textTheme: _textTheme,
+      appBarTheme: AppBarTheme(
+        textTheme: _textTheme.apply(bodyColor: colorScheme.onPrimary),
+        color: colorScheme.background,
+        elevation: 0,
+        iconTheme: IconThemeData(color: colorScheme.primary),
+        brightness: colorScheme.brightness,
+      ),
+      iconTheme: IconThemeData(color: colorScheme.onPrimary),
+      canvasColor: colorScheme.background,
+      scaffoldBackgroundColor: colorScheme.background,
+      highlightColor: Colors.transparent,
+      accentColor: colorScheme.primary,
+      focusColor: focusColor,
+      snackBarTheme: SnackBarThemeData(
+        behavior: SnackBarBehavior.floating,
+        backgroundColor: Color.alphaBlend(
+          _lightFillColor.withOpacity(0.80),
+          _darkFillColor,
+        ),
+        contentTextStyle: _textTheme.subhead.apply(color: _darkFillColor),
+      ),
+    );
+  }
+
+  static ColorScheme lightColorScheme = ColorScheme(
+    primary: const Color(0xFFB93C5D),
+    primaryVariant: const Color(0xFF117378),
+    secondary: const Color(0xFFEFF3F3),
+    secondaryVariant: const Color(0xFFFAFBFB),
+    background: const Color(0xFFE6EBEB),
+    surface: const Color(0xFFFAFBFB),
+    onBackground: Colors.white,
+    error: _lightFillColor,
+    onError: _lightFillColor,
+    onPrimary: _lightFillColor,
+    onSecondary: const Color(0xFF322942),
+    onSurface: const Color(0xFF241E30),
+    brightness: Brightness.light,
+  );
+
+  static ColorScheme darkColorScheme = ColorScheme(
+    primary: const Color(0xFFFF8383),
+    primaryVariant: const Color(0xFF1CDEC9),
+    secondary: const Color(0xFF4D1F7C),
+    secondaryVariant: const Color(0xFF451B6F),
+    background: const Color(0xFF241E30),
+    surface: const Color(0xFF1F1929),
+    onBackground: Colors.white.withOpacity(0.05),
+    error: _darkFillColor,
+    onError: _darkFillColor,
+    onPrimary: _darkFillColor,
+    onSecondary: _darkFillColor,
+    onSurface: _darkFillColor,
+    brightness: Brightness.dark,
+  );
+
+  static const _regular = FontWeight.w400;
+  static const _medium = FontWeight.w500;
+  static const _semiBold = FontWeight.w600;
+  static const _bold = FontWeight.w700;
+
+  static TextTheme _textTheme = TextTheme(
+    display1: GoogleFonts.montserrat(fontWeight: _bold, fontSize: 20.0),
+    caption: GoogleFonts.oswald(fontWeight: _semiBold, fontSize: 16.0),
+    headline: GoogleFonts.oswald(fontWeight: _medium, fontSize: 16.0),
+    subhead: GoogleFonts.montserrat(fontWeight: _medium, fontSize: 16.0),
+    overline: GoogleFonts.montserrat(fontWeight: _medium, fontSize: 12.0),
+    body2: GoogleFonts.montserrat(fontWeight: _regular, fontSize: 14.0),
+    subtitle: GoogleFonts.montserrat(fontWeight: _medium, fontSize: 14.0),
+    body1: GoogleFonts.montserrat(fontWeight: _regular, fontSize: 16.0),
+    title: GoogleFonts.montserrat(fontWeight: _bold, fontSize: 16.0),
+    button: GoogleFonts.montserrat(fontWeight: _semiBold, fontSize: 14.0),
+  );
+}

gallery/lib/themes/material_demo_theme_data.dart

@@ -0,0 +1,57 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+
+class MaterialDemoThemeData {
+  static final themeData = ThemeData(
+    colorScheme: _colorScheme,
+    appBarTheme: AppBarTheme(
+      color: _colorScheme.primary,
+      iconTheme: IconThemeData(color: _colorScheme.onPrimary),
+    ),
+    bottomAppBarTheme: BottomAppBarTheme(
+      color: _colorScheme.primary,
+    ),
+    buttonTheme: ButtonThemeData(
+      textTheme: ButtonTextTheme.primary,
+      colorScheme: _colorScheme,
+    ),
+    canvasColor: _colorScheme.background,
+    cursorColor: _colorScheme.primary,
+    toggleableActiveColor: _colorScheme.primary,
+    highlightColor: Colors.transparent,
+    indicatorColor: _colorScheme.onPrimary,
+    primaryColor: _colorScheme.primary,
+    accentColor: _colorScheme.primary,
+    backgroundColor: Colors.white,
+    scaffoldBackgroundColor: _colorScheme.background,
+    snackBarTheme: SnackBarThemeData(
+      behavior: SnackBarBehavior.floating,
+    ),
+    typography: Typography(
+      platform: defaultTargetPlatform,
+      englishLike: Typography.englishLike2018,
+      dense: Typography.dense2018,
+      tall: Typography.tall2018,
+    ),
+  );
+
+  static const _colorScheme = ColorScheme(
+    primary: Color(0xFF6200EE),
+    primaryVariant: Color(0xFF6200EE),
+    secondary: Color(0xFFFF5722),
+    secondaryVariant: Color(0xFFFF5722),
+    background: Colors.white,
+    surface: Color(0xFFF2F2F2),
+    onBackground: Colors.black,
+    onSurface: Colors.black,
+    error: Colors.red,
+    onError: Colors.white,
+    onPrimary: Colors.white,
+    onSecondary: Colors.white,
+    brightness: Brightness.light,
+  );
+}