add #eval sample

osx/Calc/.gitignore

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+.repl_history
+build
+tags
+app/pixate_code.rb
+resources/*.nib
+resources/*.momd
+resources/*.storyboardc
+.DS_Store
+nbproject
+.redcar
+#*#
+*~
+*.sw[po]
+.eprj
+.sass-cache
+.idea

osx/Calc/Gemfile

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+source 'https://rubygems.org'
+
+gem 'rake'
+# Add your dependencies here:

osx/Calc/README

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+Calc.app
+
+This sample demonstrates the following concepts: #eval for OSX
+(http://blog.rubymotion.com/post/65685097257/new-in-rubymotion-mavericks-eval-for-os-x)

osx/Calc/Rakefile

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+# -*- coding: utf-8 -*-
+$:.unshift("/Library/RubyMotion/lib")
+require 'motion/project/template/osx'
+
+begin
+  require 'bundler'
+  Bundler.require
+rescue LoadError
+end
+
+Motion::Project::App.setup do |app|
+  # Use `rake config' to see complete project settings.
+  app.name = 'Calc'
+  app.eval_support = true
+end

osx/Calc/app/app_delegate.rb

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+class AppDelegate
+  def applicationDidFinishLaunching(notification)
+    buildMenu
+    buildWindow
+  end
+
+  def buildWindow
+    @mainWindow = NSWindow.alloc.initWithContentRect([[240, 180], [300, 150]],
+      styleMask: NSTitledWindowMask|NSClosableWindowMask|NSMiniaturizableWindowMask|NSResizableWindowMask,
+      backing: NSBackingStoreBuffered,
+      defer: false)
+    @mainWindow.title = NSBundle.mainBundle.infoDictionary['CFBundleName']
+    @mainWindow.orderFrontRegardless
+
+    @text = NSTextField.alloc.initWithFrame([[20, 90], [200, 22]])
+    @text.autoresizingMask = NSViewMinXMargin|NSViewMinYMargin|NSViewWidthSizable
+    @mainWindow.contentView.addSubview(@text)
+
+    button = NSButton.alloc.initWithFrame([[220, 83], [62, 32]])
+    button.title = "Calc"
+    button.action = :"calc:"
+    button.target = self
+    button.bezelStyle = NSRoundedBezelStyle
+    button.autoresizingMask = NSViewMinXMargin|NSViewMinYMargin
+    @mainWindow.contentView.addSubview(button)
+
+    @label = NSTextField.alloc.initWithFrame([[20, 40], [260, 22]])
+    @label.autoresizingMask = NSViewMinXMargin|NSViewMinYMargin|NSViewWidthSizable
+    @label.editable = false
+    @mainWindow.contentView.addSubview(@label)
+  end
+
+  def calc(sender)
+    string = @text.stringValue
+    if string =~ /^[\d\s\.\+\-\*\/]*$/
+      result = eval(string)
+    else
+      result = "ERROR"
+    end
+    @label.stringValue = result.to_s
+  end
+end

osx/Calc/app/menu.rb

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+class AppDelegate
+  def buildMenu
+    @mainMenu = NSMenu.new
+
+    appName = NSBundle.mainBundle.infoDictionary['CFBundleName']
+    addMenu(appName) do
+      addItemWithTitle("About #{appName}", action: 'orderFrontStandardAboutPanel:', keyEquivalent: '')
+      addItem(NSMenuItem.separatorItem)
+      addItemWithTitle('Preferences', action: 'openPreferences:', keyEquivalent: ',')
+      addItem(NSMenuItem.separatorItem)
+      servicesItem = addItemWithTitle('Services', action: nil, keyEquivalent: '')
+      NSApp.servicesMenu = servicesItem.submenu = NSMenu.new
+      addItem(NSMenuItem.separatorItem)
+      addItemWithTitle("Hide #{appName}", action: 'hide:', keyEquivalent: 'h')
+      item = addItemWithTitle('Hide Others', action: 'hideOtherApplications:', keyEquivalent: 'H')
+      item.keyEquivalentModifierMask = NSCommandKeyMask|NSAlternateKeyMask
+      addItemWithTitle('Show All', action: 'unhideAllApplications:', keyEquivalent: '')
+      addItem(NSMenuItem.separatorItem)
+      addItemWithTitle("Quit #{appName}", action: 'terminate:', keyEquivalent: 'q')
+    end
+
+    addMenu('File') do
+      addItemWithTitle('New', action: 'newDocument:', keyEquivalent: 'n')
+      addItemWithTitle('Open…', action: 'openDocument:', keyEquivalent: 'o')
+      addItem(NSMenuItem.separatorItem)
+      addItemWithTitle('Close', action: 'performClose:', keyEquivalent: 'w')
+      addItemWithTitle('Save…', action: 'saveDocument:', keyEquivalent: 's')
+      addItemWithTitle('Revert to Saved', action: 'revertDocumentToSaved:', keyEquivalent: '')
+      addItem(NSMenuItem.separatorItem)
+      addItemWithTitle('Page Setup…', action: 'runPageLayout:', keyEquivalent: 'P')
+      addItemWithTitle('Print…', action: 'printDocument:', keyEquivalent: 'p')
+    end
+
+    addMenu('Edit') do
+      addItemWithTitle('Undo', action: 'undo:', keyEquivalent: 'z')
+      addItemWithTitle('Redo', action: 'redo:', keyEquivalent: 'Z')
+      addItem(NSMenuItem.separatorItem)
+      addItemWithTitle('Cut', action: 'cut:', keyEquivalent: 'x')
+      addItemWithTitle('Copy', action: 'copy:', keyEquivalent: 'c')
+      addItemWithTitle('Paste', action: 'paste:', keyEquivalent: 'v')
+      item = addItemWithTitle('Paste and Match Style', action: 'pasteAsPlainText:', keyEquivalent: 'V')
+      item.keyEquivalentModifierMask = NSCommandKeyMask|NSAlternateKeyMask
+      addItemWithTitle('Delete', action: 'delete:', keyEquivalent: '')
+      addItemWithTitle('Select All', action: 'selectAll:', keyEquivalent: 'a')
+    end
+
+    fontMenu = createMenu('Font') do
+      addItemWithTitle('Show Fonts', action: 'orderFrontFontPanel:', keyEquivalent: 't')
+      addItemWithTitle('Bold', action: 'addFontTrait:', keyEquivalent: 'b')
+      addItemWithTitle('Italic', action: 'addFontTrait:', keyEquivalent: 'i')
+      addItemWithTitle('Underline', action: 'underline:', keyEquivalent: 'u')
+      addItem(NSMenuItem.separatorItem)
+      addItemWithTitle('Bigger', action: 'modifyFont:', keyEquivalent: '+')
+      addItemWithTitle('Smaller', action: 'modifyFont:', keyEquivalent: '-')
+    end
+
+    textMenu = createMenu('Text') do
+      addItemWithTitle('Align Left', action: 'alignLeft:', keyEquivalent: '{')
+      addItemWithTitle('Center', action: 'alignCenter:', keyEquivalent: '|')
+      addItemWithTitle('Justify', action: 'alignJustified:', keyEquivalent: '')
+      addItemWithTitle('Align Right', action: 'alignRight:', keyEquivalent: '}')
+      addItem(NSMenuItem.separatorItem)
+      addItemWithTitle('Show Ruler', action: 'toggleRuler:', keyEquivalent: '')
+      item = addItemWithTitle('Copy Ruler', action: 'copyRuler:', keyEquivalent: 'c')
+      item.keyEquivalentModifierMask = NSCommandKeyMask|NSControlKeyMask
+      item = addItemWithTitle('Paste Ruler', action: 'pasteRuler:', keyEquivalent: 'v')
+      item.keyEquivalentModifierMask = NSCommandKeyMask|NSControlKeyMask
+    end
+
+    addMenu('Format') do
+      addItem fontMenu
+      addItem textMenu
+    end
+
+    addMenu('View') do
+      item = addItemWithTitle('Show Toolbar', action: 'toggleToolbarShown:', keyEquivalent: 't')
+      item.keyEquivalentModifierMask = NSCommandKeyMask|NSAlternateKeyMask
+      addItemWithTitle('Customize Toolbar…', action: 'runToolbarCustomizationPalette:', keyEquivalent: '')
+    end
+
+    NSApp.windowsMenu = addMenu('Window') do
+      addItemWithTitle('Minimize', action: 'performMiniaturize:', keyEquivalent: 'm')
+      addItemWithTitle('Zoom', action: 'performZoom:', keyEquivalent: '')
+      addItem(NSMenuItem.separatorItem)
+      addItemWithTitle('Bring All To Front', action: 'arrangeInFront:', keyEquivalent: '')
+    end.menu
+
+    NSApp.helpMenu = addMenu('Help') do
+      addItemWithTitle("#{appName} Help", action: 'showHelp:', keyEquivalent: '?')
+    end.menu
+
+    NSApp.mainMenu = @mainMenu
+  end
+
+  private
+
+  def addMenu(title, &b)
+    item = createMenu(title, &b)
+    @mainMenu.addItem item
+    item
+  end
+
+  def createMenu(title, &b)
+    menu = NSMenu.alloc.initWithTitle(title)
+    menu.instance_eval(&b) if b
+    item = NSMenuItem.alloc.initWithTitle(title, action: nil, keyEquivalent: '')
+    item.submenu = menu
+    item
+  end
+end

osx/Calc/resources/Credits.rtf

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+{\rtf0\ansi{\fonttbl\f0\fswiss Helvetica;}
+{\colortbl;\red255\green255\blue255;}
+\paperw9840\paperh8400
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\ql\qnatural
+
+\f0\b\fs24 \cf0 Engineering:
+\b0 \
+	Some people\
+\
+
+\b Human Interface Design:
+\b0 \
+	Some other people\
+\
+
+\b Testing:
+\b0 \
+	Hopefully not nobody\
+\
+
+\b Documentation:
+\b0 \
+	Whoever\
+\
+
+\b With special thanks to:
+\b0 \
+	Mom\
+}

osx/Calc/spec/main_spec.rb

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+describe "Application 'Calc'" do
+  before do
+    @app = NSApplication.sharedApplication
+  end
+
+  it "has one window" do
+    @app.windows.size.should == 1
+  end
+end