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cli-widgets-progress_bars.adb
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cli-widgets-progress_bars.adb
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------------------------------------------------------------------------------
-- --
-- Command Line Interface Toolkit --
-- --
-- ------------------------------------------------------------------------ --
-- --
-- Copyright (C) 2019-2020, ANNEXI-STRAYLINE Inc. --
-- All rights reserved. --
-- --
-- Original Contributors: --
-- * Ensi Martini (ANNEXI-STRAYLINE) --
-- --
-- Redistribution and use in source and binary forms, with or without --
-- modification, are permitted provided that the following conditions are --
-- met: --
-- --
-- * Redistributions of source code must retain the above copyright --
-- notice, this list of conditions and the following disclaimer. --
-- --
-- * Redistributions in binary form must reproduce the above copyright --
-- notice, this list of conditions and the following disclaimer in --
-- the documentation and/or other materials provided with the --
-- distribution. --
-- --
-- * Neither the name of the copyright holder nor the names of its --
-- contributors may be used to endorse or promote products derived --
-- from this software without specific prior written permission. --
-- --
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS --
-- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT --
-- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A --
-- PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT --
-- OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, --
-- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT --
-- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, --
-- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY --
-- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT --
-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE --
-- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. --
-- --
------------------------------------------------------------------------------
package body CLI.Widgets.Progress_Bars is
------------------
-- Render_Inner --
------------------
-- Render the bar except for the delimiters. Column must be set appropriatly
-- first
procedure Render_Inner (Bar: in Progress_Bar) is
Progress_Length: constant Natural := Natural
(Float'Rounding ((Float (Bar.Percent) / 100.0) * Float (Bar.Width)));
Fill_String: constant Wide_Wide_String (1 .. Progress_Length)
:= (others => Bar.Fill_Char);
Empty_String: constant Wide_Wide_String
(1 .. (Bar.Width - Progress_Length))
:= (others => Bar.Empty_Char);
begin
Wide_Wide_Put (Message => Fill_String, Style => Bar.Fill_Style );
Wide_Wide_Put (Message => Empty_String, Style => Bar.Empty_Style);
end Render_Inner;
------------
-- Render --
------------
procedure Render (Bar : in out Progress_Bar;
Column: in Positive := Current_Column)
is begin
Bar.Column := Column;
Set_Column (Bar.Column);
if Bar.Delimited then
-- Left delimiter
Wide_Wide_Put (Char => Bar.Left_Delimiter,
Style => Bar.Left_Delimiter_Style);
end if;
Render_Inner (Bar);
if Bar.Delimited then
Wide_Wide_Put (Char => Bar.Right_Delimiter,
Style => Bar.Right_Delimiter_Style);
end if;
end Render;
------------
-- Update --
------------
procedure Update (Bar: in out Progress_Bar) is
Saved_Column: constant Positive := Current_Column;
begin
Set_Column (Bar.Column + (if Bar.Delimited then 1 else 0));
Render_Inner (Bar);
Set_Column (Saved_Column);
end Update;
end CLI.Widgets.Progress_Bars;