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Contents
# encoding: ascii-8bit
# Copyright 2014 Ball Aerospace & Technologies Corp.
# All Rights Reserved.
#
# This program is free software; you can modify and/or redistribute it
# under the terms of the GNU General Public License
# as published by the Free Software Foundation; version 3 with
# attribution addendums as found in the LICENSE.txt
require 'cosmos/tools/tlm_viewer/widgets/widget'
require 'cosmos/tools/tlm_viewer/widgets/canvas_clickable'
module Cosmos
# Display text on the canvas of a given size and color
class CanvaslabelWidget
include Widget
include CanvasClickable
def initialize(parent_layout, x, y, text, font_size = 12, color = 'black')
super()
@x = x.to_i
@paint_y = y.to_i
@text = text
@color = Cosmos::getColor(color)
@font = Cosmos.getFont("helvetica", font_size.to_i)
fm = Qt::FontMetrics.new(@font)
@x_end = @x + fm.width(text)
# drawText uses the y value as the bottom of the text
# Thus for the clickable area we need to set the y_end to the y value
# and calculate the top y value by subtracting the font height
@y_end = y.to_i
@y = @y_end - fm.height()
parent_layout.add_repaint(self)
end
def paint(painter)
painter.save
painter.setPen(@color)
painter.setFont(@font)
painter.drawText(@x, @paint_y, @text)
painter.restore
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems