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Diffstat (limited to 'Ada95/samples/ncurses2-color_edit.adb')
| -rw-r--r-- | Ada95/samples/ncurses2-color_edit.adb | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/Ada95/samples/ncurses2-color_edit.adb b/Ada95/samples/ncurses2-color_edit.adb new file mode 100644 index 000000000000..098f98d837b2 --- /dev/null +++ b/Ada95/samples/ncurses2-color_edit.adb @@ -0,0 +1,259 @@ +------------------------------------------------------------------------------ +-- -- +-- 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; |