1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/libs/goatkit/textbox.cc	Wed Sep 23 05:44:58 2015 +0300
     1.3 @@ -0,0 +1,168 @@
     1.4 +/*
     1.5 +GoatKit - a themable/animated widget toolkit for games
     1.6 +Copyright (C) 2014  John Tsiombikas <nuclear@member.fsf.org>
     1.7 +
     1.8 +This program is free software: you can redistribute it and/or modify
     1.9 +it under the terms of the GNU Lesser General Public License as published by
    1.10 +the Free Software Foundation, either version 3 of the License, or
    1.11 +(at your option) any later version.
    1.12 +
    1.13 +This program is distributed in the hope that it will be useful,
    1.14 +but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.15 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.16 +GNU Lesser General Public License for more details.
    1.17 +
    1.18 +You should have received a copy of the GNU Lesser General Public License
    1.19 +along with this program.  If not, see <http://www.gnu.org/licenses/>.
    1.20 +*/
    1.21 +#include <ctype.h>
    1.22 +#include <limits.h>
    1.23 +#include <string>
    1.24 +#include "textbox.h"
    1.25 +
    1.26 +namespace goatkit {
    1.27 +
    1.28 +struct TextBoxImpl {
    1.29 +	std::string text;
    1.30 +	int cursor;
    1.31 +};
    1.32 +
    1.33 +TextBox::TextBox()
    1.34 +{
    1.35 +	tbox = new TextBoxImpl;
    1.36 +	tbox->cursor = 0;
    1.37 +}
    1.38 +
    1.39 +TextBox::~TextBox()
    1.40 +{
    1.41 +	delete tbox;
    1.42 +}
    1.43 +
    1.44 +const char *TextBox::get_type_name() const
    1.45 +{
    1.46 +	return "textbox";
    1.47 +}
    1.48 +
    1.49 +bool TextBox::can_focus() const
    1.50 +{
    1.51 +	return true;
    1.52 +}
    1.53 +
    1.54 +void TextBox::clear()
    1.55 +{
    1.56 +	tbox->text.clear();
    1.57 +}
    1.58 +
    1.59 +void TextBox::set_text(const char *t)
    1.60 +{
    1.61 +	tbox->text = std::string(t);
    1.62 +}
    1.63 +
    1.64 +const char *TextBox::get_text() const
    1.65 +{
    1.66 +	return tbox->text.c_str();
    1.67 +}
    1.68 +
    1.69 +int TextBox::set_cursor(int idx)
    1.70 +{
    1.71 +	int len = tbox->text.size();
    1.72 +
    1.73 +	if(idx < 0) {
    1.74 +		tbox->cursor = 0;
    1.75 +	} else if(idx > len) {
    1.76 +		tbox->cursor = len;
    1.77 +	} else {
    1.78 +		tbox->cursor = idx;
    1.79 +	}
    1.80 +	return tbox->cursor;
    1.81 +}
    1.82 +
    1.83 +int TextBox::get_cursor() const
    1.84 +{
    1.85 +	return tbox->cursor;
    1.86 +}
    1.87 +
    1.88 +int TextBox::cursor_begin()
    1.89 +{
    1.90 +	return tbox->cursor = 0;
    1.91 +}
    1.92 +
    1.93 +int TextBox::cursor_end()
    1.94 +{
    1.95 +	return set_cursor(INT_MAX);
    1.96 +}
    1.97 +
    1.98 +int TextBox::cursor_prev()
    1.99 +{
   1.100 +	return set_cursor(tbox->cursor - 1);
   1.101 +}
   1.102 +
   1.103 +int TextBox::cursor_next()
   1.104 +{
   1.105 +	return set_cursor(tbox->cursor + 1);
   1.106 +}
   1.107 +
   1.108 +void TextBox::insert(char c)
   1.109 +{
   1.110 +	int len = tbox->text.size();
   1.111 +	if(tbox->cursor >= len) {
   1.112 +		tbox->text.push_back(c);
   1.113 +		tbox->cursor++;
   1.114 +	} else {
   1.115 +		tbox->text.insert(tbox->cursor++, 1, c);
   1.116 +	}
   1.117 +}
   1.118 +
   1.119 +void TextBox::on_key(const KeyEvent &ev)
   1.120 +{
   1.121 +	if(!ev.press) return;	// ignore key release events
   1.122 +
   1.123 +	switch(ev.key) {
   1.124 +	case KEY_LEFT:
   1.125 +		cursor_prev();
   1.126 +		break;
   1.127 +
   1.128 +	case KEY_RIGHT:
   1.129 +		cursor_next();
   1.130 +		break;
   1.131 +
   1.132 +	case KEY_HOME:
   1.133 +		cursor_begin();
   1.134 +		break;
   1.135 +
   1.136 +	case KEY_END:
   1.137 +		cursor_end();
   1.138 +		break;
   1.139 +
   1.140 +	case KEY_DELETE:
   1.141 +		tbox->text.erase(tbox->cursor, 1);
   1.142 +		break;
   1.143 +
   1.144 +	case '\b':
   1.145 +		if(tbox->cursor > 0) {
   1.146 +			tbox->text.erase(--tbox->cursor, 1);
   1.147 +		}
   1.148 +		break;
   1.149 +
   1.150 +	case '\n':
   1.151 +	case '\t':
   1.152 +		{
   1.153 +			Event ev;
   1.154 +			ev.type = EV_CHANGE;
   1.155 +			handle_event(ev);
   1.156 +		}
   1.157 +		break;
   1.158 +
   1.159 +	default:
   1.160 +		if(isprint(ev.key)) {
   1.161 +			insert(ev.key);
   1.162 +		}
   1.163 +	}
   1.164 +}
   1.165 +
   1.166 +void TextBox::on_click()
   1.167 +{
   1.168 +	// TODO place cursor
   1.169 +}
   1.170 +
   1.171 +}	// namespace goatkit