1------------------------------------------------------------------------------
2--                                                                          --
3--                       GNAT ncurses Binding Samples                       --
4--                                                                          --
5--                         Sample.Curses_Demo.Mouse                         --
6--                                                                          --
7--                                 B O D Y                                  --
8--                                                                          --
9------------------------------------------------------------------------------
10-- Copyright (c) 1998-2006,2008 Free Software Foundation, Inc.              --
11--                                                                          --
12-- Permission is hereby granted, free of charge, to any person obtaining a  --
13-- copy of this software and associated documentation files (the            --
14-- "Software"), to deal in the Software without restriction, including      --
15-- without limitation the rights to use, copy, modify, merge, publish,      --
16-- distribute, distribute with modifications, sublicense, and/or sell       --
17-- copies of the Software, and to permit persons to whom the Software is    --
18-- furnished to do so, subject to the following conditions:                 --
19--                                                                          --
20-- The above copyright notice and this permission notice shall be included  --
21-- in all copies or substantial portions of the Software.                   --
22--                                                                          --
23-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  --
24-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               --
25-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   --
26-- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   --
27-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    --
28-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    --
29-- THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               --
30--                                                                          --
31-- Except as contained in this notice, the name(s) of the above copyright   --
32-- holders shall not be used in advertising or otherwise to promote the     --
33-- sale, use or other dealings in this Software without prior written       --
34-- authorization.                                                           --
35------------------------------------------------------------------------------
36--  Author:  Juergen Pfeifer, 1996
37--  Version Control
38--  $Revision: 1.16 $
39--  $Date: 2008/07/26 18:48:19 $
40--  Binding Version 01.00
41------------------------------------------------------------------------------
42with Terminal_Interface.Curses; use Terminal_Interface.Curses;
43with Terminal_Interface.Curses.Panels; use Terminal_Interface.Curses.Panels;
44with Terminal_Interface.Curses.Mouse; use Terminal_Interface.Curses.Mouse;
45with Terminal_Interface.Curses.Text_IO; use Terminal_Interface.Curses.Text_IO;
46with Terminal_Interface.Curses.Text_IO.Integer_IO;
47with Terminal_Interface.Curses.Text_IO.Enumeration_IO;
48
49with Sample.Helpers; use Sample.Helpers;
50with Sample.Manifest; use Sample.Manifest;
51with Sample.Keyboard_Handler; use Sample.Keyboard_Handler;
52with Sample.Function_Key_Setting; use Sample.Function_Key_Setting;
53with Sample.Explanation; use Sample.Explanation;
54
55package body Sample.Curses_Demo.Mouse is
56
57   package Int_IO is new
58     Terminal_Interface.Curses.Text_IO.Integer_IO (Integer);
59   use Int_IO;
60
61   package Button_IO is new
62     Terminal_Interface.Curses.Text_IO.Enumeration_IO (Mouse_Button);
63   use Button_IO;
64
65   package State_IO is new
66     Terminal_Interface.Curses.Text_IO.Enumeration_IO (Button_State);
67   use State_IO;
68
69   procedure Demo is
70
71      type Controls is array (1 .. 3) of Panel;
72
73      Frame : Window;
74      Msg   : Window;
75      Ctl   : Controls;
76      Pan   : Panel;
77      K     : Real_Key_Code;
78      V     : Cursor_Visibility := Invisible;
79      W     : Window;
80      Note  : Window;
81      Msg_L : constant Line_Count := 8;
82      Lins  : Line_Position := Lines;
83      Cols  : Column_Position;
84      Mask  : Event_Mask;
85      procedure Show_Mouse_Event;
86
87      procedure Show_Mouse_Event
88      is
89         Evt    : constant Mouse_Event := Get_Mouse;
90         Y      : Line_Position;
91         X      : Column_Position;
92         Button : Mouse_Button;
93         State  : Button_State;
94         W      : Window;
95      begin
96         Get_Event (Evt, Y, X, Button, State);
97         Put (Msg, "Event at");
98         Put (Msg, "  X=");    Put (Msg, Integer (X), 3);
99         Put (Msg, ", Y=");    Put (Msg, Integer (Y), 3);
100         Put (Msg, ", Btn=");  Put (Msg, Button, 10);
101         Put (Msg, ", Stat="); Put (Msg, State, 15);
102         for I in Ctl'Range loop
103            W := Get_Window (Ctl (I));
104            if Enclosed_In_Window (W, Evt) then
105               Transform_Coordinates (W, Y, X, From_Screen);
106               Put (Msg, ",Box(");
107               Put (Msg, (I), 1); Put (Msg, ",");
108               Put (Msg, Integer (Y), 1); Put (Msg, ",");
109               Put (Msg, Integer (X), 1); Put (Msg, ")");
110            end if;
111         end loop;
112         New_Line (Msg);
113         Flush (Msg);
114         Update_Panels; Update_Screen;
115      end Show_Mouse_Event;
116
117   begin
118      Push_Environment ("MOUSE00");
119      Notepad ("MOUSE-PAD00");
120      Default_Labels;
121      Set_Cursor_Visibility (V);
122
123      Note  := Notepad_Window;
124      if Note /= Null_Window then
125         Get_Window_Position (Note, Lins, Cols);
126      end if;
127      Frame := Create (Msg_L, Columns, Lins - Msg_L, 0);
128      if Has_Colors then
129         Set_Background (Win => Frame,
130                         Ch => (Color => Default_Colors,
131                                Attr  => Normal_Video,
132                                Ch    => ' '));
133         Set_Character_Attributes (Win   => Frame,
134                                   Attr  => Normal_Video,
135                                   Color => Default_Colors);
136         Erase (Frame);
137      end if;
138      Msg   := Derived_Window (Frame, Msg_L - 2, Columns - 2, 1, 1);
139      Pan   := Create (Frame);
140
141      Set_Meta_Mode;
142      Set_KeyPad_Mode;
143      Mask := Start_Mouse;
144
145      Box (Frame);
146      Window_Title (Frame, "Mouse Protocol");
147      Refresh_Without_Update (Frame);
148      Allow_Scrolling (Msg, True);
149
150      declare
151         Middle_Column : constant Integer := Integer (Columns) / 2;
152         Middle_Index  : constant Natural := Ctl'First + (Ctl'Length / 2);
153         Width         : constant Column_Count := 5;
154         Height        : constant Line_Count   := 3;
155         Half          : constant Column_Count := Width / 2;
156         Space         : constant Column_Count := 3;
157         Position      : Integer;
158         W             : Window;
159      begin
160         for I in Ctl'Range loop
161            Position := ((I) - Integer (Middle_Index)) *
162              Integer (Half + Space + Width) + Middle_Column;
163            W := Create (Height,
164                         Width,
165                         1,
166                         Column_Position (Position));
167            if Has_Colors then
168               Set_Background (Win => W,
169                               Ch => (Color => Menu_Back_Color,
170                                      Attr  => Normal_Video,
171                                      Ch    => ' '));
172               Set_Character_Attributes (Win   => W,
173                                         Attr  => Normal_Video,
174                                         Color => Menu_Fore_Color);
175               Erase (W);
176            end if;
177            Ctl (I) := Create (W);
178            Box (W);
179            Move_Cursor (W, 1, Half);
180            Put (W, (I), 1);
181            Refresh_Without_Update (W);
182         end loop;
183      end;
184
185      Update_Panels; Update_Screen;
186
187      loop
188         K := Get_Key;
189         if K in Special_Key_Code'Range then
190            case K is
191               when QUIT_CODE     => exit;
192               when HELP_CODE     => Explain_Context;
193               when EXPLAIN_CODE  => Explain ("MOUSEKEYS");
194               when Key_Mouse     => Show_Mouse_Event;
195               when others        => null;
196            end case;
197         end if;
198      end loop;
199
200      for I in Ctl'Range loop
201         W := Get_Window (Ctl (I));
202         Clear (W);
203         Delete (Ctl (I));
204         Delete (W);
205      end loop;
206
207      Clear (Frame);
208      Delete (Pan);
209      Delete (Msg);
210      Delete (Frame);
211
212      Set_Cursor_Visibility (V);
213      End_Mouse (Mask);
214
215      Pop_Environment;
216      Update_Panels; Update_Screen;
217
218   end Demo;
219
220end Sample.Curses_Demo.Mouse;
221