Added support for deciding text drawing method, more work on edit_box

lib/cyberarm_engine/ui/elements/edit_box.rb

@@ -5,6 +5,39 @@ module CyberarmEngine
         super(*args)
 
         @active_line = 0
+
+        @repeatable_keys = [
+          {
+            key: Gosu::KB_UP,
+            down: false,
+            repeat_delay: 50,
+            last_repeat: 0,
+            action: proc {move(:up)}
+          },
+          {
+            key: Gosu::KB_DOWN,
+            down: false,
+            repeat_delay: 50,
+            last_repeat: 0,
+            action: proc {move(:down)}
+          }
+        ]
+      end
+
+      def update
+        super
+
+        caret_stay_left_of_last_newline
+        calculate_active_line
+
+        @repeatable_keys.each do |key|
+          if key[:down]
+            if Gosu.milliseconds > key[:last_repeat] + key[:repeat_delay]
+              key[:action].call
+              key[:last_repeat] = Gosu.milliseconds
+            end
+          end
+        end
       end
 
       def draw_caret
@@ -25,11 +58,42 @@ module CyberarmEngine
         end
       end
 
+      def set_position(int)
+        @text_input.selection_start = @text_input.caret_pos = int
+      end
+
+      def calculate_active_line
+        sub_text = @text_input.text[0...@text_input.caret_pos]
+        @active_line = sub_text.lines.size-1
+      end
+
+      def caret_stay_left_of_last_newline
+        @text_input.text+="\n" unless @text_input.text.end_with?("\n")
+
+        eof = @text_input.text.chomp.length
+        set_position(eof) if @text_input.caret_pos > eof
+      end
+
       def caret_position_under_mouse(mouse_x, mouse_y)
-        1.upto(@text.text.length) do |i|
-          if mouse_x < @text.x - @offset_x + @text.textobject.text_width(@text.text[0...i])
-            return i - 1;
+        active_line = ((mouse_y - @text.y) / @text.textobject.height).round
+        active_line = 0 if @active_line < 0
+        active_line = @text.text.strip.lines.size if @active_line > @text.text.strip.lines.size
+
+        # 1.upto(@text.text.length) do |i|
+        #   if mouse_x < @text.x - @offset_x + @text.width(@text.text[0...i])
+        #     return i - 1
+        #   end
+        # end
+        buffer = ""
+        @text.text.strip.lines.each do |line|
+          buffer.length.upto(line.length) do |i|
+            if mouse_x < @text.x - @offset_x + @text.width(@text.text[buffer.length...i])
+              puts "#{i}"
+              return i - 1
+            end
           end
+
+          buffer += line
         end
 
         @text_input.text.length
@@ -42,6 +106,14 @@ module CyberarmEngine
       def button_down(id)
         super
 
+        @repeatable_keys.detect do |key|
+          if key[:key] == id
+            key[:down] = true
+            key[:last_repeat] = Gosu.milliseconds + key[:repeat_delay]
+            return true
+          end
+        end
+
         case id
         when Gosu::KB_ENTER, Gosu::KB_RETURN
           caret_pos = @text_input.caret_pos
@@ -50,6 +122,33 @@ module CyberarmEngine
         end
       end
 
+      def button_up(id)
+        super
+
+        @repeatable_keys.detect do |key|
+          if key[:key] == id
+            key[:down] = false
+            return true
+          end
+        end
+      end
+
+      def move(direction)
+        pos = @text_input.caret_pos
+        line = nil
+
+        case direction
+        when :up
+          return if @active_line == 0
+        when :down
+          return if @active_line == @text_input.text.chomp.lines
+          text = @text_input.text.chomp.lines[0..@active_line].join("\n")
+          pos = text.length
+        end
+
+        set_position(pos)
+      end
+
       def drag_update(sender, x, y, button)
         @text_input.caret_pos = caret_position_under_mouse(x, y)