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//******************************************************************************
// @file String.cpp
// @author Nicolai Shlapunov
//
// @details DevCore: String Visual Object Class, implementation
//
// @copyright Copyright (c) 2016, Devtronic & Nicolai Shlapunov
// All rights reserved.
//
// @section SUPPORT
//
// Devtronic invests time and resources providing this open source code,
// please support Devtronic and open-source hardware/software by
// donations and/or purchasing products from Devtronic.
//
//******************************************************************************
// *****************************************************************************
// *** Includes ************************************************************
// *****************************************************************************
#include "Strings.h"
#include "Fonts.h"
#include <cstring> // for strlen()
// *****************************************************************************
// *****************************************************************************
// *** Strings *************************************************************
// *****************************************************************************
// *****************************************************************************
const String::FontProfile String::fonts[FONTS_MAX] =
// W H BPP Pointer to data
{ { 4, 6, 6, (const uint8_t*)font4x6},
{ 6, 8, 8, (const uint8_t*)font6x8},
{ 8, 8, 8, (const uint8_t*)font8x8},
{ 8, 12, 12, (const uint8_t*)font8x12},
{12, 16, 32, (const uint8_t*)font12x16} };
// *****************************************************************************
// *** Constructor *********************************************************
// *****************************************************************************
String::String(const char* str, int32_t x, int32_t y, uint32_t tc, FontType ft)
{
SetParams(str, x, y, tc, ft);
}
// *****************************************************************************
// *** Constructor *********************************************************
// *****************************************************************************
String::String(const char* str, int32_t x, int32_t y, uint32_t tc, uint32_t bgc, FontType ft)
{
SetParams(str, x, y, tc, bgc, ft);
}
// *****************************************************************************
// *** SetParams ***********************************************************
// *****************************************************************************
void String::SetParams(const char* str, int32_t x, int32_t y, uint32_t tc, FontType ft)
{
string = (const uint8_t*)str;
x_start = x;
y_start = y;
txt_color = tc;
bg_color = 0;
font_type = ft;
transpatent_bg = true;
width = fonts[ft].w * strlen(str);
height = fonts[ft].h;
x_end = x + width - 1;
y_end = y + height - 1;
rotation = 0;
}
// *****************************************************************************
// *** SetParams ***********************************************************
// *****************************************************************************
void String::SetParams(const char* str, int32_t x, int32_t y, uint32_t tc, uint32_t bgc, FontType ft)
{
string = (const uint8_t*)str;
x_start = x;
y_start = y;
txt_color = tc;
bg_color = bgc;
font_type = ft;
transpatent_bg = false;
width = fonts[ft].w * strlen(str);
height = fonts[ft].h;
x_end = x + width - 1;
y_end = y + height - 1;
rotation = 0;
}
// *****************************************************************************
// *** SetColor ************************************************************
// *****************************************************************************
void String::SetColor(uint32_t tc, uint32_t bgc, bool is_trnsp)
{
txt_color = tc;
bg_color = bgc;
transpatent_bg = is_trnsp;
}
// *****************************************************************************
// *** SetString ***********************************************************
// *****************************************************************************
void String::SetString(const char* str)
{
// Lock object for changes
LockVisObject();
//Set new pointer to string
string = (const uint8_t*)str;
width = fonts[font_type].w * strlen(str);
x_end = x_start + width - 1;
// Unlock object after changes
UnlockVisObject();
}
// *****************************************************************************
// *** Put line in buffer **************************************************
// *****************************************************************************
void String::DrawInBufW(uint16_t* buf, int32_t n, int32_t line, int32_t start_x)
{
// Draw only if needed
if((line >= y_start) && (line <= y_end) && (string != nullptr))
{
// Current symbol X position
int32_t x = x_start;
// Number of bytes need skipped for draw line
uint32_t skip_bytes = (line - y_start) * fonts[font_type].bytes_per_char / fonts[font_type].h;
// Pointer to string. Will increment for get characters.
const uint8_t* str = string;
// While we have symbols
while(*str != '\0')
{
uint32_t b = 0;
uint32_t w = 0;
// Get all symbol line
for(uint32_t i = 0; i < fonts[font_type].bytes_per_char; i++)
{
b |= fonts[font_type].font_data[((uint32_t)(*str)) * fonts[font_type].bytes_per_char + skip_bytes + i] << (i*8);
}
// Output symbol line
while(w < fonts[font_type].w)
{
// Put color in buffer only if visible
if((x >= start_x) && (x < start_x+n))
{
if((b&1) == 1)
{
buf[x] = txt_color;
}
else if(transpatent_bg == false)
{
buf[x] = bg_color;
}
else
{
// Empty statement
}
}
b >>= 1;
w++;
x++;
}
str++;
}
}
}
// *****************************************************************************
// *** Put line in buffer **************************************************
// *****************************************************************************
void String::DrawInBufH(uint16_t* buf, int32_t n, int32_t row, int32_t start_y)
{
// Draw only if needed
if((row >= x_start) && (row <= x_end) && (string != nullptr))
{
// Find line in symbol
int16_t start = y_start - start_y;
// Find line in symbol
int16_t line = (row - x_start);
if(line >= 0)
{
// Get symbol
uint8_t c = string[line / fonts[font_type].w];
// Find line in symbol
line %= fonts[font_type].w;
// Index to symbol in data array
uint16_t s_idx = c * fonts[font_type].bytes_per_char;
// Index to symbol in data array
uint16_t bytes_per_line = fonts[font_type].bytes_per_char / fonts[font_type].h;
// Get symbols lines
for(int32_t i = 0; i < fonts[font_type].h; i++)
{
uint32_t b = *(uint32_t *)(&fonts[font_type].font_data[s_idx + i*bytes_per_line]);
if(b & (1U<<line))
{
if((start+i > 0) && (start+i < n))
{
buf[start+i] = txt_color;
}
}
}
}
}
}
// *****************************************************************************
// *** GetFontW ************************************************************
// *****************************************************************************
uint32_t String::GetFontW(FontType ft)
{
// Zero my default
uint32_t font_w = 0U;
// If provided valid font number
if(ft < FONTS_MAX)
{
// Get font width
font_w = fonts[ft].w;
}
// Return result
return font_w;
};
// *****************************************************************************
// *** GetFontH ************************************************************
// *****************************************************************************
uint32_t String::GetFontH(FontType ft)
{
// Zero my default
uint32_t font_h = 0U;
// If provided valid font number
if(ft < FONTS_MAX)
{
// Get font height
font_h = fonts[ft].h;
}
// Return result
return font_h;
};
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