Update presentation slides and README & Improved code for some exercises

Author: AndyObtiva

README.md

@@ -6,17 +6,15 @@
   content_size 50, 20
   margined true
 
-  vertical_box {
-    form {
-      entry {
-        label 'Full Name'
-        text 'John Smith'
-      }
-      
-      date_picker {
-        label 'DOB'
-        time year: 2004, mon: 11, mday: 17
-      }
+  form {
+    entry {
+      label 'Full Name'
+      text 'John Smith'
+    }
+    
+    date_picker {
+      label 'DOB'
+      time year: 2004, mon: 11, mday: 17
     }
   }
 }.show

RubyConf 2024 - How To Build Basic Desktop Applications in Ruby - Andy Maleh.pdf

@@ -7,7 +7,7 @@
   margined true
 
   vertical_box {
-    selected_options_label = label('None')
+    @selected_options_label = label('None')
 
     horizontal_box {
       @checkboxes = 3.times.map do |n|
@@ -16,9 +16,9 @@
             puts "Checkbox '#{@checkboxes[n].text}' checked property changed to: #{@checkboxes[n].checked?}"
             checked_checkboxes = @checkboxes.select(&:checked?)
             if checked_checkboxes.empty?
-              selected_options_label.text = 'None'
+              @selected_options_label.text = 'None'
             else
-              selected_options_label.text = checked_checkboxes.map(&:text).join(', ')
+              @selected_options_label.text = checked_checkboxes.map(&:text).join(', ')
             end
           end
         }

screenshots/section-01-exercise-01-screenshot-01-empty-window.png

@@ -55,7 +55,7 @@ def create_gui_body
         @selected_options_label = label('None')
 
         horizontal_box {
-          checkboxes = 3.times.map do |n|
+          3.times.map do |n|
             option_number = n + 1
             checkbox("Option #{option_number}") {
               on_toggled do

screenshots/section-01-exercise-01-screenshot-02-hello-world-window-with-args.png

@@ -42,7 +42,7 @@ def create_gui_body
         @selected_options_label = label('None')
 
         horizontal_box {
-          checkboxes = 3.times.map do |n|
+          3.times.map do |n|
             option_number = n + 1
             checkbox("Option #{option_number}") {
               on_toggled do

screenshots/section-01-exercise-01-screenshot-03-hello-world-window-label-with-args.png

@@ -68,7 +68,7 @@ def create_gui_body
 
         @billing_and_shipping_checkbox = checkbox('Billing & Shipping') {
           on_toggled do
-            @address.billing_and_shipping = @billing_and_shipping_checkbox.checked
+            @address.billing_and_shipping = @billing_and_shipping_checkbox.checked?
           end
         }
 

screenshots/section-01-exercise-01-screenshot-04-hello-button-clicked.png

@@ -39,12 +39,6 @@ def create_gui_body
             }
           end
         }
-        
-        button('Reset') {
-          on_clicked do
-            @option_selector_model.reset
-          end
-        }
       }
     }
   end

screenshots/section-01-exercise-01-screenshot-04-hello-button.png

@@ -122,16 +122,6 @@ def launch
 
           editable true
           cell_rows <=> [@presenter, :contacts] # explicit data-binding to @presenter.contacts Model Array, auto-inferring model attribute names from underscored table column names by convention
-          
-          on_changed do |row, type, row_data|
-            puts "Row #{row} #{type}: #{row_data}"
-            $stdout.flush # for Windows
-          end
-      
-          on_edited do |row, row_data| # only fires on direct table editing
-            puts "Row #{row} edited: #{row_data}"
-            $stdout.flush # for Windows
-          end
         }
       }
     }.show