display_base.h

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/*
    MIT License

    Copyright (c) 2018-2020, Alexey Dynda

    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in all
    copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    SOFTWARE.
*/
#ifndef _DISPLAY_BASE_H_
#define _DISPLAY_BASE_H_

#include "lcd_hal/io.h"
#include "nano_gfx_types.h"
#include "canvas/point.h"
#include "canvas/rect.h"
#include "canvas/font.h"

#ifdef __cplusplus
extern "C"
{
#endif
extern uint8_t s_ssd1306_invertByte;
#ifdef __cplusplus
}
#endif

template <class I>
class NanoDisplayBase
{
public:
    NanoDisplayBase(I& intf): m_intf( intf ) {}

    void setOffset(lcdint_t ox, lcdint_t oy) { };

    const NanoPoint offsetEnd() const
    {
        return (NanoPoint){ (lcdint_t)(m_w-1), (lcdint_t)(m_h-1) };
    }

    const NanoRect rect() const
    {
        return { (NanoPoint){0,0}, offsetEnd() };
    }

    lcduint_t width() { return m_w; }

    lcduint_t height() { return m_h; }

    void swapDimensions()
    {
        lcduint_t t = m_w;
        m_w = m_h;
        m_h = t;
    }

    void setColor(uint16_t color) { m_color = color; };

    void negativeMode() { s_ssd1306_invertByte = 0xFF; }

    void positiveMode() { s_ssd1306_invertByte = 0x00; }

    I& getInterface() { return m_intf; }

    void setFont( NanoFont &font ) { m_font = &font; }

    NanoFont &getFont() { return *m_font; }

    void setFixedFont( const uint8_t *progmemFont )
    {
        g_canvas_font.loadFixedFont( progmemFont );
        setFont( g_canvas_font );
    }

#ifndef DOXYGEN_SHOULD_SKIP_THIS
    void setFixedFont_oldStyle( const uint8_t *progmemFont )
    {
        g_canvas_font.loadFixedFont_oldStyle( progmemFont );
        setFont( g_canvas_font );
    }
#endif

    void setFixedFont( const uint8_t *progmemFont, const uint8_t *secondaryFont )
    {
        g_canvas_font.loadFixedFont( progmemFont );
        if ( secondaryFont )
        {
            g_canvas_font.loadSecondaryFont( secondaryFont );
        }
        setFont( g_canvas_font );
    }

    void setFreeFont( const uint8_t *progmemFont, const uint8_t *secondaryFont = nullptr )
    {
        g_canvas_font.loadFreeFont( progmemFont );
        if ( secondaryFont )
        {
            g_canvas_font.loadSecondaryFont( secondaryFont );
        }
        setFont( g_canvas_font );
    }

    void setTextCursor( lcdint_t x, lcdint_t y )
    {
        m_cursorX = x;
        m_cursorY = y;
    }

protected:
    lcduint_t m_w = 0;    
    lcduint_t m_h = 0;    
    lcduint_t m_p = 0;    
    lcdint_t  m_cursorX = 0;  
    lcdint_t  m_cursorY = 0;  
    uint8_t   m_textMode = 0; 
    EFontStyle   m_fontStyle; 
    uint16_t  m_color = 0xFFFF;    
    NanoFont *m_font = nullptr; 

    I& m_intf; 
};

#endif