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Finalise viewport changes

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Bodmer
2020-10-13 13:35:03 +01:00
parent 505ca81a70
commit b1f8cae069
10 changed files with 102 additions and 52 deletions
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TFT_eSPI.cpp
+56
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@@ -170,6 +170,35 @@ void TFT_eSPI::setViewport(int32_t x, int32_t y, int32_t w, int32_t h, bool vpDa
}
/***************************************************************************************
** Function name: checkViewport
** Description: Check if any part of specified area is visible in viewport
***************************************************************************************/
// Note: Setting w and h to 1 will check if coordinate x,y is in area
bool TFT_eSPI::checkViewport(int32_t x, int32_t y, int32_t w, int32_t h)
{
if (_vpOoB) return false;
x+= _xDatum;
y+= _yDatum;
if ((x >= _vpW) || (y >= _vpH)) return false;
int32_t dx = 0;
int32_t dy = 0;
int32_t dw = w;
int32_t dh = h;
if (x < _vpX) { dx = _vpX - x; dw -= dx; x = _vpX; }
if (y < _vpY) { dy = _vpY - y; dh -= dy; y = _vpY; }
if ((x + dw) > _vpW ) dw = _vpW - x;
if ((y + dh) > _vpH ) dh = _vpH - y;
if (dw < 1 || dh < 1) return false;
return true;
}
/***************************************************************************************
** Function name: resetViewport
** Description: Reset viewport to whle TFT screen, datum at 0,0
@@ -190,6 +219,24 @@ void TFT_eSPI::resetViewport(void)
_vpOoB = false;
}
/***************************************************************************************
** Function name: getViewportX
** Description: Get x position of the viewport
***************************************************************************************/
int32_t TFT_eSPI::getViewportX(void)
{
return _xDatum;
}
/***************************************************************************************
** Function name: getViewportY
** Description: Get y position of the viewport
***************************************************************************************/
int32_t TFT_eSPI::getViewportY(void)
{
return _yDatum;
}
/***************************************************************************************
** Function name: getViewportWidth
** Description: Get width of the viewport
@@ -208,6 +255,15 @@ int32_t TFT_eSPI::getViewportHeight(void)
return _vpH - _vpY;
}
/***************************************************************************************
** Function name: getViewportDatum
** Description: Get datum of the viewport (true = viewport corner)
***************************************************************************************/
bool TFT_eSPI::getViewportDatum(void)
{
return _vpDatum;
}
/***************************************************************************************
** Function name: frameViewport
** Description: Draw a frame inside or outside the viewport of width w