/elec/propeller-clock : contents of src/text.h at revision 78

: (revision 78)

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/*
 * text.h
 *
 * Copyright (C) 2011 Tim Marston <tim@ed.am> and Dan Marston.
 *
 * This file is part of propeller-clock (hereafter referred to as "this
 * program"). See http://ed.am/dev/software/arduino/propeller-clock for more
 * information.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef _TEXT_H_
#define _TEXT_H_


#include <PString.h>


#define NUM_MESSAGE_BUFFERS 4
#define MESSAGE_LEN 32


namespace Text
{
	enum {
		// one of these to select face
		MODE_TOP = 1,
		MODE_BOTTOM = 0,

		// one of these to select size
		MODE_ONEQUARTER = 0,
		MODE_ONETHIRD = 4,
		MODE_HALF = 8,
		MODE_TWOTHIRDS = 12,
		MODE_THREEQUARTERS = 16,
		MODE_ALL = 20,

		// flag to turn on horizontal scrolling
		MODE_HSCROLL = 32,
	};

	/**
	 * After modifying a message buffer, call this to reset the internal state
	 * of the text renderer with regard to this message.
	 *
	 * @param message_num the buffer number
	 * @param pstring the PString that represents this message's buffer
	 */
	void set_message( int message_num, PString &pstring );

	/**
	 * Reset the display of a message and specify its display parameters.
	 *
	 * @param message_num the message to reset
	 * @param mode the new mode for this message
	 */
	void reset_message( int message_num, char mode );

	/**
	 * Reset internal state, for a new text display.
	 */
	void reset();

	/**
	 * Call at the start of each frame.
	 */
	void draw_reset();

	/**
	 * Draw segment for the specified message number using whatever mode that
	 * message is set to.
	 *
	 * @param message_num the message buffer number
	 * @param segment to draw
	 */
	void draw( int message_num, int segment );

	/** internal message buffers */
	extern char _messages[ NUM_MESSAGE_BUFFERS ][ MESSAGE_LEN ];
};


#endif //_TEXT_H_

62 by edam moved some stuf round, created a re-usable pool of message buffers, genericised "modes" for messages	1	/*
	2	* text.h
	3	*
	4	* Copyright (C) 2011 Tim Marston <tim@ed.am> and Dan Marston.
	5	*
	6	* This file is part of propeller-clock (hereafter referred to as "this
	7	* program"). See http://ed.am/dev/software/arduino/propeller-clock for more
	8	* information.
	9	*
	10	* This program is free software: you can redistribute it and/or modify
	11	* it under the terms of the GNU Lesser General Public License as published
	12	* by the Free Software Foundation, either version 3 of the License, or
	13	* (at your option) any later version.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU Lesser General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU Lesser General Public License
	21	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	22	*/
	23	#ifndef _TEXT_H_
	24	#define _TEXT_H_
	25
	26
	27	#include <PString.h>
	28
	29
	30	#define NUM_MESSAGE_BUFFERS 4
	31	#define MESSAGE_LEN 32
	32
	33
	34	namespace Text
	35	{
	36	enum {
	37	// one of these to select face
	38	MODE_TOP = 1,
	39	MODE_BOTTOM = 0,
	40
	41	// one of these to select size
	42	MODE_ONEQUARTER = 0,
	43	MODE_ONETHIRD = 4,
	44	MODE_HALF = 8,
	45	MODE_TWOTHIRDS = 12,
	46	MODE_THREEQUARTERS = 16,
	47	MODE_ALL = 20,
	48
	49	// flag to turn on horizontal scrolling
	50	MODE_HSCROLL = 32,
	51	};
	52
	53	/**
	54	* After modifying a message buffer, call this to reset the internal state
	55	* of the text renderer with regard to this message.
	56	*
	57	* @param message_num the buffer number
	58	* @param pstring the PString that represents this message's buffer
	59	*/
	60	void set_message( int message_num, PString &pstring );
	61
	62	/**
63 by edam widenned clock hands, tweaked scales, got top & bottom text modes working	63	* Reset the display of a message and specify its display parameters.
62 by edam moved some stuf round, created a re-usable pool of message buffers, genericised "modes" for messages	64	*
63 by edam widenned clock hands, tweaked scales, got top & bottom text modes working	65	* @param message_num the message to reset
62 by edam moved some stuf round, created a re-usable pool of message buffers, genericised "modes" for messages	66	* @param mode the new mode for this message
	67	*/
63 by edam widenned clock hands, tweaked scales, got top & bottom text modes working	68	void reset_message( int message_num, char mode );
62 by edam moved some stuf round, created a re-usable pool of message buffers, genericised "modes" for messages	69
	70	/**
	71	* Reset internal state, for a new text display.
	72	*/
	73	void reset();
	74
	75	/**
	76	* Call at the start of each frame.
	77	*/
	78	void draw_reset();
	79
	80	/**
	81	* Draw segment for the specified message number using whatever mode that
	82	* message is set to.
	83	*
	84	* @param message_num the message buffer number
	85	* @param segment to draw
	86	*/
	87	void draw( int message_num, int segment );
	88
	89	/** internal message buffers */
	90	extern char _messages[ NUM_MESSAGE_BUFFERS ][ MESSAGE_LEN ];
	91	};
	92
	93
	94	#endif //_TEXT_H_