102 lines
2.9 KiB
C
102 lines
2.9 KiB
C
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/**
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* \file
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* <!--
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* This file is part of BeRTOS.
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*
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* Bertos is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* As a special exception, you may use this file as part of a free software
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* library without restriction. Specifically, if other files instantiate
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* templates or use macros or inline functions from this file, or you compile
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* this file and link it with other files to produce an executable, this
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* file does not by itself cause the resulting executable to be covered by
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* the GNU General Public License. This exception does not however
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* invalidate any other reasons why the executable file might be covered by
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* the GNU General Public License.
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*
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* Copyright 2006 Develer S.r.l. (http://www.develer.com/)
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* Copyright 2000,2001 Bernie Innocenti <bernie@codewiz.org>
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*
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* -->
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*
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*
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* \author Bernie Innocenti <bernie@codewiz.org>
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*
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* \brief Custom Qt widget for emulating a graphics LCD display (implementation)
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*/
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#ifndef EMULLCD_H
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#define EMULLCD_H
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#include <qframe.h>
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#include <qfont.h>
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#include <qcolor.h>
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// fwd decls
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class QSizePolicy;
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class QPaintEvent;
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class QResizeEvent;
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/**
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* Qt widget to emulate a dot-matrix LCD display.
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*/
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class EmulLCD : public QFrame
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{
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Q_OBJECT
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public:
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// Attributes
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enum { COLS = 20, ROWS = 4 };
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// Construction
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EmulLCD(QWidget *parent = 0, const char *name = 0);
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virtual ~EmulLCD();
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// Base class overrides
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protected:
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virtual QSizePolicy sizePolicy() const;
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virtual QSize sizeHint() const;
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virtual void drawContents(QPainter *p);
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// Operations
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public:
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void MoveCursor (int col, int row);
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void ShowCursor (bool show = true);
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void PutChar (unsigned char c);
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char GetChar ();
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void Clear ();
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void SetCGRamAddr (unsigned char addr);
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// Implementation
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protected:
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void SetPainter(QPainter & p);
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void RedrawText(QPainter & p);
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void PrintChar(QPainter & p, int row, int col);
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void AdvanceCursor();
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QFont lcd_font; ///< Display character font
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QColor fg_color, bg_color; ///< LCD colors
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int font_width, font_height; ///< Font dimensions
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int frame_width; ///< Frame width (and height)
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int cr_row, cr_col; ///< Cursor position
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int cgramaddr; ///< CGRAM Address (-1 disabled)
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unsigned char ddram[ROWS][COLS];///< Display data RAM
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unsigned char cgram[8*8]; ///< CGRAM
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bool show_cursor; ///< Cursor enabled?
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};
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#endif // !defined(EMULLCD_H)
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