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158 | -------------------------------------------------------------------------------
-- --
-- Eagle Lander --
-- --
-- Copyright (C) 2015 Fabien Chouteau (chouteau@adacore.com) --
-- --
-- Eagle Lander is free software: you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation, either version 3 of the License, or --
-- (at your option) any later version. --
-- --
-- Eagle Lander is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the --
-- GNU General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with Eagle Lander. If not, see <http://www.gnu.org/licenses/>. --
-- --
-------------------------------------------------------------------------------
with Ada.Containers.Vectors;
with Ada.Containers;
with Glib; use Glib;
with Ada.Numerics;
package body Timeline is
package Situation_Vecs is new Ada.Containers.Vectors
(Element_Type => Lander_Situation,
Index_Type => Positive);
Vect : Situation_Vecs.Vector;
------------
-- Lenght --
------------
function Lenght return Simulation_Time is
begin
return Simulation_Time (Vect.Length);
end Lenght;
-------------
-- Set_Now --
-------------
procedure Set_Now (Index : Simulation_Time) is
begin
Vect.Set_Length (Ada.Containers.Count_Type (Index));
end Set_Now;
-------------------
-- Get_Situation --
-------------------
function Get_Situation (Index : Simulation_Time) return Lander_Situation is
begin
return Vect (Positive (Index));
end Get_Situation;
-------------------
-- Set_Situation --
-------------------
procedure Set_Situation (Situ : Lander_Situation) is
begin
Vect.Append (Situ);
end Set_Situation;
----------
-- Init --
----------
procedure Init
(Self : in out Overview_Panel;
Pos : Vector2D;
Size : Vector2D)
is
begin
Self.Pos := Pos;
Self.Size := Size;
end Init;
----------
-- Draw --
----------
procedure Draw (Self : in out Overview_Panel; Cr : Cairo_Context) is
X : constant := -2000.0;
Y : constant := 0.0;
Height : constant := 5000.0;
Width : constant := 12000.0;
Margin : constant Gdouble := (Self.Size.X * 0.02) / Self.Scale;
Screen_Size : Vector2D := Self.Inner_Frame_Size - Margin * 2.0;
begin
Self.Draw_Frame (Cr);
if Screen_Size.X <= 0.0 then
Screen_Size.X := 1.0;
end if;
if Screen_Size.Y <= 0.0 then
Screen_Size.Y := 1.0;
end if;
Save (Cr);
Translate (Cr, Self.Inner_Frame_Pos.X, Self.Inner_Frame_Pos.Y);
Scale (Cr, Self.Scale, Self.Scale);
Scale (Cr, 1.0, -1.0);
Translate (Cr, Margin, -Screen_Size.Y - Margin);
Scale (Cr, Screen_Size.X / Width, Screen_Size.Y / Height);
Translate (Cr, -X, -Y);
-- white Screen
Set_Source_Rgb (Cr, 1.0, 1.0, 1.0);
Rectangle (Cr, X, Y, Width, Height);
Fill_Preserve (Cr);
-- Create A Mask
Clip (Cr);
Set_Line_Width (Cr, Height / 50.0);
Set_Source_Rgb (Cr, 1.0, 0.0, 0.0);
Arc (Cr, 0.0, 0.0, Height / 20.0, 0.0, 2.0 * Ada.Numerics.Pi);
Stroke (Cr);
Arc (Cr, 0.0, 0.0, Height / 40.0, 0.0, 2.0 * Ada.Numerics.Pi);
Fill (Cr);
Set_Source_Rgb (Cr, 0.0, 0.0, 1.0);
Arc
(Cr,
Gdouble (Lander.Get_Situation.Pos.X),
Gdouble (Lander.Get_Situation.Pos.Y),
Height / 20.0,
0.0,
2.0 * Ada.Numerics.Pi);
Set_Line_Cap (Cr, Cairo_Line_Cap_Round);
Stroke (Cr);
Arc
(Cr,
Gdouble (Lander.Get_Situation.Pos.X),
Gdouble (Lander.Get_Situation.Pos.Y),
Height / 40.0,
0.0,
2.0 * Ada.Numerics.Pi);
Fill (Cr);
for Situ of Vect loop
Line_To (Cr, Gdouble (Situ.Pos.X), Gdouble (Situ.Pos.Y));
end loop;
Set_Source_Rgb (Cr, 0.0, 1.0, 0.0);
Stroke (Cr);
Restore (Cr);
end Draw;
end Timeline;
|