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lea_gwin-embedded_texts.adb
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lea_gwin-embedded_texts.adb
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with LEA_Common.Syntax;
with LEA_GWin.MDI_Child;
with HAT;
with Zip, UnZip.Streams, Zip_Streams;
with GWindows.Base,
GWindows.Message_Boxes;
with Ada.Command_Line;
package body LEA_GWin.Embedded_Texts is
procedure Show_embedded (
Main_Window : in out MDI_Main.MDI_Main_Type;
File_Name : String;
Short_Name : String;
Is_Help : Boolean
)
is
use LEA_Common, LEA_Common.Syntax, LEA_GWin.MDI_Child,
HAT,
GWindows.Message_Boxes, Zip_Streams;
lea_exe : constant String := Ada.Command_Line.Command_Name;
zi : Zip.Zip_Info;
mem_stream_unpacked : aliased Memory_Zipstream;
unpacked : HAT.VString;
already_open : Boolean := False;
New_ID : constant ID_Type :=
(file_name => Null_GString_Unbounded, -- No file until first "Save".
short_name => G2GU (S2G (Short_Name)));
--
procedure Check_Duplicate_Embedded_Doc
(Any_Window : GWindows.Base.Pointer_To_Base_Window_Class)
is
begin
if already_open then
-- Duplicate already found.
return;
end if;
if Any_Window.all in MDI_Child_Type'Class then
declare
one_child : MDI_Child_Type renames MDI_Child_Type (Any_Window.all);
begin
if Is_Help then
already_open := one_child.editor.document_kind = help_main;
else
already_open := Equivalent (one_child.ID, New_ID);
end if;
if already_open then
one_child.Focus;
end if;
end;
end if;
end Check_Duplicate_Embedded_Doc;
--
New_Window : MDI_Child_Access;
begin
-- We want only one copy of the help of any sample document displayed.
GWindows.Base.Enumerate_Children
(Main_Window.MDI_Client_Window.all,
Check_Duplicate_Embedded_Doc'Unrestricted_Access);
if already_open then
return;
end if;
Zip.Load (zi, lea_exe);
UnZip.Streams.Extract (mem_stream_unpacked, zi, File_Name);
Get (mem_stream_unpacked, unpacked);
if not Is_Help then
unpacked :=
"-- **************************************************************" & ASCII.LF &
"-- ** This sample is not saved anywhere on your file system. **" & ASCII.LF &
"-- ** Don't forget to save it, especially if you modify it! **" & ASCII.LF &
"-- **************************************************************" & ASCII.LF &
ASCII.LF &
unpacked;
end if;
declare
unpacked_str : constant String := HAT.To_String (unpacked); -- visible to dbg
begin
New_Window := new MDI_Child_Type;
if Is_Help then
New_Window.editor.document_kind := help_main;
else
Main_Window.Close_Initial_Document;
end if;
Main_Window.User_maximize_restore := False;
New_Window.Create_LEA_MDI_Child (Main_Window, New_ID);
New_Window.editor.Load_Text (contents => unpacked_str);
if Is_Help then
New_Window.editor.Set_Read_Only (True);
else
New_Window.editor.syntax_kind := Ada_syntax;
New_Window.editor.Set_Scintilla_Syntax;
end if;
end;
-- This is just to set the MRUs in the new window's menu:
Main_Window.Update_Common_Menus;
--
New_Window.Finish_subwindow_opening;
New_Window.editor.Focus;
exception
when Zip.Archive_corrupted =>
Message_Box (Main_Window, "Embedded file", "Could not unpack file from " & S2G (lea_exe));
end Show_embedded;
procedure Show_Help (Main_Window : in out MDI_Main.MDI_Main_Type) is
begin
Show_embedded (Main_Window, "lea_help.txt", "Help", Is_Help => True);
end Show_Help;
procedure Show_Sample (Main_Window : in out MDI_Main.MDI_Main_Type; Dir, Sample_Name : String) is
begin
Show_embedded
(Main_Window, "hac_samples/" & Dir & '/' & Sample_Name, Sample_Name, Is_Help => False);
end Show_Sample;
end LEA_GWin.Embedded_Texts;