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-------------------------------------------------------------------------------
--- --
--- GNAT ncurses Binding Samples --
--- --
--- ncurses --
--- --
--- B O D Y --
--- --
-------------------------------------------------------------------------------
--- Copyright (c) 2000 Free Software Foundation, Inc. --
--- --
--- Permission is hereby granted, free of charge, to any person obtaining a --
--- copy of this software and associated documentation files (the --
--- "Software"), to deal in the Software without restriction, including --
--- without limitation the rights to use, copy, modify, merge, publish, --
--- distribute, distribute with modifications, sublicense, and/or sell --
--- copies of the Software, and to permit persons to whom the Software is --
--- furnished to do so, subject to the following conditions: --
--- --
--- The above copyright notice and this permission notice shall be included --
--- in all copies or substantial portions of the Software. --
--- --
--- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS --
--- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF --
--- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. --
--- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, --
--- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR --
--- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR --
--- THE USE OR OTHER DEALINGS IN THE SOFTWARE. --
--- --
--- Except as contained in this notice, the name(s) of the above copyright --
--- holders shall not be used in advertising or otherwise to promote the --
--- sale, use or other dealings in this Software without prior written --
--- authorization. --
-------------------------------------------------------------------------------
--- Author: Eugene V. Melaragno <aldomel@ix.netcom.com> 2000
--- Version Control
--- $Revision$
--- Binding Version 01.00
-------------------------------------------------------------------------------
-with ncurses2.util; use ncurses2.util;
-with ncurses2.genericPuts;
-with Terminal_Interface.Curses; use Terminal_Interface.Curses;
-
-
-procedure ncurses2.color_edit is
- use Int_IO;
-
- type RGB_Enum is (Redx, Greenx, Bluex);
-
- procedure change_color (current : Color_Number;
- field : RGB_Enum;
- value : RGB_Value;
- usebase : Boolean);
-
-
-
- procedure change_color (current : Color_Number;
- field : RGB_Enum;
- value : RGB_Value;
- usebase : Boolean) is
- red, green, blue : RGB_Value;
- begin
- if usebase then
- Color_Content (current, red, green, blue);
- else
- red := 0;
- green := 0;
- blue := 0;
- end if;
-
- case field is
- when Redx => red := red + value;
- when Greenx => green := green + value;
- when Bluex => blue := blue + value;
- end case;
-
- declare
- begin
- Init_Color (current, red, green, blue);
- exception
- when Curses_Exception => Beep;
- end;
-
- end change_color;
-
-
- package x is new ncurses2.genericPuts (100); use x;
-
- tmpb : x.BS.Bounded_String;
-
- tmp4 : String (1 .. 4);
- tmp6 : String (1 .. 6);
- tmp8 : String (1 .. 8);
- -- This would be easier if Ada had a Bounded_String
- -- defined as a class instead of the inferior generic package,
- -- then I could define Put, Add, and Get for them. Blech.
- value : RGB_Value := 0;
- red, green, blue : RGB_Value;
- max_colors : constant Natural := Number_Of_Colors;
- current : Color_Number := 0;
- field : RGB_Enum := Redx;
- this_c : Key_Code := 0;
- last_c : Key_Code;
-begin
- Refresh;
-
- for i in Color_Number'(0) .. Color_Number (Number_Of_Colors) loop
- Init_Pair (Color_Pair (i), White, i);
- end loop;
-
- Move_Cursor (Line => Lines - 2, Column => 0);
- Add (Str => "Number: ");
- myPut (tmpb, Integer (value));
- myAdd (Str => tmpb);
-
- loop
-
- Switch_Character_Attribute (On => False,
- Attr => (Bold_Character => True,
- others => False));
- Add (Line => 0, Column => 20, Str => "Color RGB Value Editing");
-
- Switch_Character_Attribute (On => False,
- Attr => (Bold_Character => True,
- others => False));
-
- for i in Color_Number'(0) .. Color_Number (Number_Of_Colors) loop
- Move_Cursor (Line => 2 + Line_Position (i), Column => 0);
- if current = i then
- Add (Ch => '>');
- else
- Add (Ch => ' ');
- end if;
- -- TODO if i <= color_names'Max then
- Put (tmp8, Integer (i));
- Set_Character_Attributes (Color => Color_Pair (i));
- Add (Str => " ");
- Set_Character_Attributes;
-
- Refresh;
-
- Color_Content (i, red, green, blue);
- Add (Str => " R = ");
- if current = i and field = Redx then
- Switch_Character_Attribute (On => True,
- Attr => (Stand_Out => True,
- others => False));
- end if;
- Put (tmp4, Integer (red));
- Add (Str => tmp4);
- if current = i and field = Redx then
- Set_Character_Attributes;
- end if;
- Add (Str => " G = ");
- if current = i and field = Greenx then
- Switch_Character_Attribute (On => True,
- Attr => (Stand_Out => True,
- others => False));
- end if;
- Put (tmp4, Integer (green));
- Add (Str => tmp4);
- if current = i and field = Greenx then
- Set_Character_Attributes;
- end if;
- Add (Str => " B = ");
- if current = i and field = Bluex then
- Switch_Character_Attribute (On => True,
- Attr => (Stand_Out => True,
- others => False));
- end if;
- Put (tmp4, Integer (blue));
- Add (Str => tmp4);
- if current = i and field = Bluex then
- Set_Character_Attributes;
- end if;
- Set_Character_Attributes;
- Add (ch => ')');
- end loop;
- Add (Line => Line_Position (Number_Of_Colors + 3), Column => 0,
- Str => "Use up/down to select a color, left/right to change " &
- "fields.");
- Add (Line => Line_Position (Number_Of_Colors + 4), Column => 0,
- Str => "Modify field by typing nnn=, nnn-, or nnn+. ? for help.");
-
- Move_Cursor (Line => 2 + Line_Position (current), Column => 0);
-
- last_c := this_c;
- this_c := Getchar;
- if Is_Digit (this_c) then
- value := 0;
- end if;
-
- case this_c is
- when KEY_UP =>
- current := (current - 1) mod Color_Number (max_colors);
- when KEY_DOWN =>
- current := (current + 1) mod Color_Number (max_colors);
- when KEY_RIGHT =>
- field := RGB_Enum'Val ((RGB_Enum'Pos (field) + 1) mod 3);
- when KEY_LEFT =>
- field := RGB_Enum'Val ((RGB_Enum'Pos (field) - 1) mod 3);
- when
- Character'Pos ('0') |
- Character'Pos ('1') |
- Character'Pos ('2') |
- Character'Pos ('3') |
- Character'Pos ('4') |
- Character'Pos ('5') |
- Character'Pos ('6') |
- Character'Pos ('7') |
- Character'Pos ('8') |
- Character'Pos ('9') =>
- value := value * 10 + RGB_Value (ctoi (Code_To_Char (this_c)));
-
- when Character'Pos ('+') =>
- change_color (current, field, value, True);
-
- when Character'Pos ('-') =>
- change_color (current, field, -value, True);
-
- when Character'Pos ('=') =>
- change_color (current, field, value, False);
-
- when Character'Pos ('?') =>
- Erase;
- P (" RGB Value Editing Help");
- P ("");
- P ("You are in the RGB value editor. Use the arrow keys to " &
- "select one of");
- P ("the fields in one of the RGB triples of the current colors;" &
- " the one");
- P ("currently selected will be reverse-video highlighted.");
- P ("");
- P ("To change a field, enter the digits of the new value; they" &
- " are echoed");
- P ("as entered. Finish by typing `='. The change will take" &
- " effect instantly.");
- P ("To increment or decrement a value, use the same procedure," &
- " but finish");
- P ("with a `+' or `-'.");
- P ("");
- P ("To quit, do `x' or 'q'");
-
- Pause;
- Erase;
- when Character'Pos ('q') |
- Character'Pos ('x') =>
- null;
- when others =>
- Beep;
- end case;
- Move_Cursor (Line => Lines - 2, Column => 0);
- Put (tmp6, Integer (value));
- Add (Str => "Number: " & tmp6);
-
- Clear_To_End_Of_Line;
- exit when this_c = Character'Pos ('x') or
- this_c = Character'Pos ('q');
- end loop;
-
- Erase;
- End_Windows;
-end ncurses2.color_edit;
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