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-- Ada_GUI implementation based on Gnoga. Adapted 2021
-- --
-- GNOGA - The GNU Omnificent GUI for Ada --
-- --
-- G N O G A . G U I . V I E W . G R I D --
-- --
-- B o d y --
-- --
-- --
-- Copyright (C) 2014 David Botton --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under terms of the GNU General Public License as published by the --
-- Free Software Foundation; either version 3, or (at your option) any --
-- later version. This library 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. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are --
-- granted additional permissions described in the GCC Runtime Library --
-- Exception, version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- For more information please go to http://www.gnoga.com --
------------------------------------------------------------------------------
with Ada.Strings.Unbounded;
with Ada_GUI.Gnoga.Server.Connection;
with Ada_GUI.Gnoga.Gui.Window;
package body Ada_GUI.Gnoga.Gui.View.Grid is
------------
-- Create --
------------
procedure Create
(Grid : in out Grid_View_Type;
Parent : in out Gnoga.Gui.Base_Type'Class;
Layout : in Grid_Rows_Type;
Fill_Parent : in Boolean := True;
Set_Sizes : in Boolean := True;
ID : in String := "")
is
use Ada.Strings.Unbounded;
C : Unbounded_String;
CID : constant String := Gnoga.Server.Connection.New_GID;
N : Natural;
Span_Size : Natural;
Column : Positive;
P_Height : constant String :=
Left_Trim (Integer (100 / Layout'Length (1))'Img) & "%";
P_Width : constant String :=
Left_Trim (Integer (100 / Layout'Length (2))'Img) & "%";
Column_Object : View_Base_Access := null;
function TD_Width return String;
function TD_Width return String is
begin
if Set_Sizes then
return " width:" & P_Width & ";";
else
return "";
end if;
end TD_Width;
begin
if Parent in Gnoga.Gui.Window.Window_Type'Class then
C := To_Unbounded_String ("<div style='position:relative'>");
end if;
C := C & "<table style='" &
" position:relative;" &
" border-spacing: 0px; border-collapse: collapse;";
if Fill_Parent then
C := C & " width:100%; height:100%;'>";
else
C := C & "'>";
end if;
N := 0;
for Row in Layout'Range (1) loop
C := C & "<tr>";
Column := Layout'First (2);
Span_Size := 0;
loop
if Layout (Row, Column) = COL then
N := N + 1;
C := C & "<td style='" &
TD_Width &
" position:relative;" &
" padding:0; text-align: left; vertical-align: top;" &
"' id='" & CID & "_" & Left_Trim (N'Img) & "'";
Span_Size := 1;
elsif Layout (Row, Column) = SPN then
Span_Size := Span_Size + 1;
end if;
Column := Column + 1;
if Column > Layout'Last (2) or else Layout (Row, Column) = COL then
if Span_Size > 0 then
if Span_Size > 1 then
C := C & " colspan=" & Left_Trim (Span_Size'Img);
end if;
C := C & " />";
end if;
end if;
exit when Column > Layout'Last (2);
end loop;
C := C & "</tr>";
end loop;
C := C & "</table>";
if Parent in Gnoga.Gui.Window.Window_Type'Class then
C := C & "</div>";
end if;
Grid.Create_From_HTML (Parent, Escape_Quotes (To_String (C)), ID);
N := 0;
for Row in Layout'Range (1) loop
Column := Layout'First (2);
Span_Size := 0;
loop
if Layout (Row, Column) = COL then
N := N + 1;
Span_Size := 1;
Column_Object := new View_Base_Type;
Column_Object.Auto_Place (False);
Column_Object.Dynamic (True);
Column_Object.Attach_Using_Parent
(Grid, CID & "_" & Left_Trim (N'Img));
Column_Object.Parent (Grid);
if Column = Layout'First (2) and Row = Layout'First (1) then
Column_Object.Box_Height (P_Height);
end if;
elsif Layout (Row, Column) = SPN then
Span_Size := Span_Size + 1;
end if;
declare
Address : constant String := Left_Trim (Row'Img) & "_" &
Left_Trim (Column'Img);
begin
Grid.Add_Element (Address, Gnoga.Gui.Element.Pointer_To_Element_Class (Column_Object));
end;
Column := Column + 1;
exit when Column > Layout'Last (2);
end loop;
end loop;
end Create;
-----------
-- Panel --
-----------
function Panel (Grid : Grid_View_Type; Row, Column : Positive)
return Pointer_To_View_Base_Class
is
Address : constant String :=
Left_Trim (Row'Img) & "_" & Left_Trim (Column'Img);
begin
return Pointer_To_View_Base_Class (Grid.Element (Address));
end Panel;
end Ada_GUI.Gnoga.Gui.View.Grid;