Class: Wads::SingleSelectTable

Inherits:
Table show all
Defined in:
lib/wads/widgets.rb

Overview

A table where the user can select one row at a time. The selected row has a background color specified by the selection color of the current theme.

Instance Attribute Summary collapse

Attributes inherited from Table

#can_delete_rows, #current_row, #data_rows, #headers, #max_visible_rows, #row_colors

Attributes inherited from Widget

#base_z, #children, #gui_theme, #height, #is_selected, #layout, #overlay_widget, #override_color, #text_input_fields, #visible, #width, #x, #y

Instance Method Summary collapse

Methods inherited from Table

#add_row, #add_table_delete_button, #clear_rows, #determine_row_number, #handle_update, #number_of_rows, #remove_table_delete_button, #scroll_down, #scroll_up, #uses_layout

Methods inherited from Widget

#add, #add_axis_lines, #add_button, #add_child, #add_delete_button, #add_document, #add_graph_display, #add_image, #add_multi_select_table, #add_overlay, #add_panel, #add_plot, #add_single_select_table, #add_table, #add_text, #border_color, #bottom_edge, #button_down, #button_up, #center_children, #center_x, #center_y, #clear_children, #contains_click, #debug, #disable_background, #disable_border, #draw, #draw_background, #draw_border, #enable_background, #enable_border, #error, #get_layout, #get_theme, #graphics_color, #handle_key_press, #handle_mouse_up, #handle_right_mouse, #handle_update, #info, #intercept_widget_event, #left_edge, #move_recursive_absolute, #move_recursive_delta, #overlaps_with, #relative_x, #relative_y, #relative_z_order, #remove_child, #remove_children, #remove_children_by_type, #right_edge, #selection_color, #set_absolute_position, #set_dimensions, #set_layout, #set_selected, #set_theme, #text_color, #top_edge, #unset_selected, #update, #uses_layout, #warn, #x_pixel_to_screen, #y_pixel_to_screen, #z_order

Constructor Details

#initialize(x, y, width, height, headers, max_visible_rows = 10, args = {}) ⇒ SingleSelectTable

Returns a new instance of SingleSelectTable.



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# File 'lib/wads/widgets.rb', line 2409

def initialize(x, y, width, height, headers, max_visible_rows = 10, args = {}) 
    super(x, y, width, height, headers, max_visible_rows, args) 
end

Instance Attribute Details

#selected_row ⇒ Object

Returns the value of attribute selected_row.



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# File 'lib/wads/widgets.rb', line 2407

def selected_row
  @selected_row
end

Instance Method Details

#handle_mouse_down(mouse_x, mouse_y) ⇒ Object 



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# File 'lib/wads/widgets.rb', line 2460

def handle_mouse_down mouse_x, mouse_y
    if contains_click(mouse_x, mouse_y)
        row_number = determine_row_number(mouse_y)
        if row_number.nil? 
            return WidgetResult.new(false)
        end
        # First check if its the delete button that got this
        delete_this_row = false
        @delete_buttons.each do |db|
            if db.contains_click(mouse_x, mouse_y)
                delete_this_row = true 
            end 
        end 
        if delete_this_row
            if not row_number.nil?
               data_set_row_to_delete = @current_row + row_number
               data_set_name_to_delete = @data_rows[data_set_row_to_delete][1]
               @data_rows.delete_at(data_set_row_to_delete)
               return WidgetResult.new(false, EVENT_TABLE_ROW_DELETE, [data_set_name_to_delete])                       
            end
        else
            if is_row_selected(mouse_y)
                unset_selected_row(mouse_y, 0)
                return WidgetResult.new(false, EVENT_TABLE_UNSELECT, @data_rows[row_number])
            else
                set_selected_row(mouse_y, 0)
                return WidgetResult.new(false, EVENT_TABLE_SELECT, @data_rows[row_number])
            end
        end
    end
end

#is_row_selected(mouse_y) ⇒ Object 



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# File 'lib/wads/widgets.rb', line 2413

def is_row_selected(mouse_y)
    row_number = determine_row_number(mouse_y)
    if row_number.nil?
        return false
    end
    selected_row = @current_row + row_number
    @selected_row == selected_row
end

#render ⇒ Object 



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# File 'lib/wads/widgets.rb', line 2446

def render 
    super 
    if @selected_row 
        if @selected_row >= @current_row and @selected_row < @current_row + @max_visible_rows
            y = @y + 30 + ((@selected_row - @current_row) * 30)
            Gosu::draw_rect(@x + 20, y, @width - 30, 28, @gui_theme.selection_color, relative_z_order(Z_ORDER_SELECTION_BACKGROUND)) 
        end 
    end
end

#set_selected_row(mouse_y, column_number) ⇒ Object 



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# File 'lib/wads/widgets.rb', line 2422

def set_selected_row(mouse_y, column_number)
    row_number = determine_row_number(mouse_y)
    if not row_number.nil?
        new_selected_row = @current_row + row_number
        if @selected_row 
            if @selected_row == new_selected_row
                return nil  # You can't select the same row already selected
            end 
        end
        @selected_row = new_selected_row
        @data_rows[@selected_row][column_number]
    end
end

#unset_selected_row(mouse_y, column_number) ⇒ Object 



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# File 'lib/wads/widgets.rb', line 2436

def unset_selected_row(mouse_y, column_number) 
    row_number = determine_row_number(mouse_y) 
    if not row_number.nil?
        this_selected_row = @current_row + row_number
        @selected_row = this_selected_row
        return @data_rows[this_selected_row][column_number]
    end 
    nil
end

#widget_z ⇒ Object 



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# File 'lib/wads/widgets.rb', line 2456

def widget_z 
    Z_ORDER_TEXT
end