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Add a setRotation overload that supports mirroring the display. #97

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Add a setRotation overload that supports mirroring the display. #97

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267cd7e
Add a setRotation overload that supports mirroring the display.
MeltyMakes Aug 9, 2024
4d85b12
Formatting to comply with clang-format.
MeltyMakes Aug 9, 2024
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51 changes: 51 additions & 0 deletions Adafruit_ILI9341.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -244,6 +244,57 @@ void Adafruit_ILI9341::setRotation(uint8_t m) {
sendCommand(ILI9341_MADCTL, &m, 1);
}

/**************************************************************************/
/*!
@brief Set origin of (0,0) and orientation of TFT display
@param m The index for rotation, from 0-3 inclusive
@param mirrored True to mirror display, false to keep display as-is
*/
/**************************************************************************/
void Adafruit_ILI9341::setRotation(uint8_t m, bool mirrored) {
rotation = m % 4; // can't be higher than 3
switch (rotation) {
case 0:
if (mirrored) {
m = (MADCTL_BGR);
} else {
m = (MADCTL_MX | MADCTL_BGR);
}
_width = ILI9341_TFTWIDTH;
_height = ILI9341_TFTHEIGHT;
break;
case 1:
if (mirrored) {
m = (MADCTL_MY | MADCTL_MV | MADCTL_BGR);
} else {
m = (MADCTL_MV | MADCTL_BGR);
}
_width = ILI9341_TFTHEIGHT;
_height = ILI9341_TFTWIDTH;
break;
case 2:
if (mirrored) {
m = (MADCTL_MX | MADCTL_MY | MADCTL_BGR);
} else {
m = (MADCTL_MY | MADCTL_BGR);
}
_width = ILI9341_TFTWIDTH;
_height = ILI9341_TFTHEIGHT;
break;
case 3:
if (mirrored) {
m = (MADCTL_MX | MADCTL_MV | MADCTL_BGR);
} else {
m = (MADCTL_MX | MADCTL_MY | MADCTL_MV | MADCTL_BGR);
}
_width = ILI9341_TFTHEIGHT;
_height = ILI9341_TFTWIDTH;
break;
}

sendCommand(ILI9341_MADCTL, &m, 1);
}

/**************************************************************************/
/*!
@brief Enable/Disable display color inversion
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1 change: 1 addition & 0 deletions Adafruit_ILI9341.h
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Original file line number Diff line number Diff line change
Expand Up @@ -145,6 +145,7 @@ class Adafruit_ILI9341 : public Adafruit_SPITFT {

void begin(uint32_t freq = 0);
void setRotation(uint8_t r);
void setRotation(uint8_t r, bool mirrored);
void invertDisplay(bool i);
void scrollTo(uint16_t y);
void setScrollMargins(uint16_t top, uint16_t bottom);
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