85 lines
1.7 KiB
C++
85 lines
1.7 KiB
C++
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#include <ViewStates.h>
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ViewTextState::ViewTextState(AT24C32 &_at24c32)
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{
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at24c32 = _at24c32;
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renderOffset = (millis() / TEXT_INTERVAL);
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};
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void ViewTextState::render(uint8_t matrix[121], ControlStates controlState)
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{
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length = at24c32.read(TEXT_SIZE_ADDRESS);
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if (controlState != ControlStates::TEXT)
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{
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for (uint8_t i = 0; i < length; i++)
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{
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text[i] = at24c32.read(TEXT_ADDRESS + i);
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}
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writeText(matrix);
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}
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else
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{
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bool const blink = (millis() / CONTROL_BLINK_INTERVAL) % 2 == 0;
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position = 0;
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text[0] = 0x20;
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text[1] = 0x20;
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if (length > 2)
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{
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text[0] = at24c32.read(TEXT_ADDRESS + length - 2);
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if (blink)
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{
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text[1] = at24c32.read(TEXT_ADDRESS + length - 1);
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}
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}
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else if (length > 1 && blink)
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{
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text[0] = at24c32.read(TEXT_ADDRESS + length - 1);
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}
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writeChars(matrix);
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}
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}
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void ViewTextState::writeText(uint8_t matrix[121])
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{
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position = (millis() / TEXT_INTERVAL - renderOffset - 1) % (length + 2);
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writeChars(matrix);
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}
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void ViewTextState::writeChars(uint8_t matrix[121])
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{
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uint8_t char1 = 0x20;
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uint8_t char2 = 0x20;
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if (length > position)
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{
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char1 = text[position];
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}
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if (length > position + 1)
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{
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char2 = text[position + 1];
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}
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for (int col = 0; col < 5; col++)
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{
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// created ascii chars in 'ascii_memory.ino' to AT23C32 epromm
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uint8_t char1Byte = at24c32.read(char1 * 5 + col);
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uint8_t char2Byte = at24c32.read(char2 * 5 + col);
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for (int row = 0; row < 8; row++)
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{
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if (!!(char1Byte & (1 << row)))
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{
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matrix[(row + v_offset) * 11 + col] = color;
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}
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if (!!(char2Byte & (1 << row)))
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{
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matrix[(row + v_offset) * 11 + col + 6] = color;
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}
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}
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}
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}
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