Class: Wads::NodeWidget

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

Overview

A graphical representation of a node in a graph using a button-style, i.e a rectangular border with a text label. The choice to use this display class is dictated by the use_icons attribute of the current theme. Like images, the size of node widgets can be scaled.

Instance Attribute Summary collapse

Attributes inherited from Button

#action_code, #is_pressed, #label

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 Button

#handle_mouse_down, #handle_update, #set_action

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_down, #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, node, color = nil, initial_scale = 1, is_explorer = false) ⇒ NodeWidget

Returns a new instance of NodeWidget.



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# File 'lib/wads/widgets.rb', line 2827

def initialize(x, y, node, color = nil, initial_scale = 1, is_explorer = false) 
    super(x, y, node.name)
    @orig_width = @width 
    @orig_height = @height
    @data_node = node
    @override_color = color
    set_scale(initial_scale, @is_explorer)
end

Instance Attribute Details

#data_node ⇒ Object

Returns the value of attribute data_node.



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# File 'lib/wads/widgets.rb', line 2825

def data_node
  @data_node
end

Instance Method Details

#get_text_widget ⇒ Object 



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# File 'lib/wads/widgets.rb', line 2850

def get_text_widget
    nil 
end

#is_background ⇒ Object 



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# File 'lib/wads/widgets.rb', line 2836

def is_background 
    @scale <= 1 and @is_explorer
end

#render ⇒ Object 



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# File 'lib/wads/widgets.rb', line 2854

def render 
    super 
    draw_background(Z_ORDER_FOCAL_ELEMENTS)
    #draw_shadow(COLOR_GRAY)
end

#set_scale(value, is_explorer = false) ⇒ Object 



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# File 'lib/wads/widgets.rb', line 2840

def set_scale(value, is_explorer = false)
    @scale = value
    @is_explorer = is_explorer
    if value < 1
        value = 1
    end 
    @width = @orig_width * @scale.to_f
    debug("In regular node widget Setting scale of #{@label} to #{@scale}")
end

#widget_z ⇒ Object 



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# File 'lib/wads/widgets.rb', line 2860

def widget_z 
    Z_ORDER_TEXT
end