| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT ncurses Binding Samples -- |
| -- -- |
| -- ncurses -- |
| -- -- |
| -- B O D Y -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| -- Copyright (c) 2000-2006,2009 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: 1.6 $ |
| -- $Date: 2009/12/26 17:38:58 $ |
| -- 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; |
| 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); |
| |
| 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; |
