126 lines
4.5 KiB
C
126 lines
4.5 KiB
C
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// This may look like C code, but it is really -*- C++ -*-
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// ------------------------------------------------------------------
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// The Goldware Library
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// Copyright (C) 1990-1999 Odinn Sorensen
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// ------------------------------------------------------------------
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this program; if not, write to the Free
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// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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// MA 02111-1307, USA
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// ------------------------------------------------------------------
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// $Id$
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// ------------------------------------------------------------------
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// Pick engine.
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// ------------------------------------------------------------------
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#ifndef __gwinpick_h
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#define __gwinpick_h
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// ------------------------------------------------------------------
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#include <gkbdbase.h>
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// ------------------------------------------------------------------
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// Constants
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const int PICK_DISP = 0;
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const int PICK_BAR = 1;
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const int LIST_BOTTOM = -2;
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const int LIST_NEARBOTTOM = -1;
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const int LIST_MIDDLE = 0;
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const int LIST_NEARTOP = 1;
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const int LIST_TOP = 2;
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// ------------------------------------------------------------------
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class gwinpick {
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private:
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protected:
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gkey key;
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bool keyok;
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void cursor_up();
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void cursor_down();
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void cursor_pageup();
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void cursor_pagedown();
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void cursor_first();
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void cursor_last();
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void cursor_scroll_up();
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void cursor_scroll_down();
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void update_cursor();
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void display_line(bool bar=false);
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void display_page();
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bool default_handle_key();
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inline void update() { display_page(); };
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public:
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uint ypos; // Window Starting Row
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uint xpos; // Window Starting Column
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uint ylen; // Window Height
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uint xlen; // Window Width
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int btype; // Window Border Type
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int battr; // Window Border Color
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int wattr; // Window Color
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int tattr; // Window Title Color
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int sattr; // Window Selection Bar Color
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int hattr; // Window Highlight Color
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int loattr; // Window LoAttr Color
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int sbattr; // Window Scrollbar Color
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const char* title; // Window Title
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int helpcat; // Window Help Category
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uint maximum_index; // List Entries - 1
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uint minimum_index; // Minimum index in the list
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uint maximum_position; // Display Pos
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uint index; // List Index
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uint position; // Display Pos
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bool aborted; // True if aborted
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bool listwrap; // True if wrap-around is supported
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int direction; // 1 if next, -1 if previous
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virtual void open(); // Called after window is opened
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virtual void close(); // Called after window is closed
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virtual void precursor(); // Called before any cursor movement
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virtual void do_delayed(); // Called after a delay
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virtual void print_line(uint idx, uint pos, bool isbar) = 0;
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virtual void scroll(int where); // Scroll page
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virtual bool handle_key(); // Handles keypress
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virtual bool is_selectable(uint idx); // returns true if selectable
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void display_bar() { display_line(true); }
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void center(int listmode);
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int run_picker();
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gwinpick();
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virtual ~gwinpick() { };
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};
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// ------------------------------------------------------------------
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#endif
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// ------------------------------------------------------------------
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