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DisplayFoundation.cpp
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/*
* TDisplayFoundation - Basics and event driven driver for many displays
*
* @created: 2019-11-09
* @author : codebeat / Erwin Haantjes
*
* Source code available at: ...
*
* @updated : 05 jan 2020
* @modified by: codebeat
* @changelog : Some bugfixes
* @notice : This is actually an initial release, not fully documented,
* features might change or removed in final release.
* For now it is suitable for this project however don't
* use this class for other purposes.
*/
// ----------------------------------------------------------------------------
//#include "DisplayFoundation.config.h"
#include "DisplayFoundation.h"
#include "DisplayFoundation.font.h"
// ----------------------------------------------------------------------------
TDisplayFoundation::TDisplayFoundation()
{
reset();
}
bool TDisplayFoundation::canDisplayControlCode()
{
#if defined DFFC_ALL_CHARS || defined DFFC_CONTROL_CHARS
return true;
#else
return false;
#endif
}
bool TDisplayFoundation::canDisplayNumeric()
{
#if defined DFFC_FONT_VARI_16SEG || defined DFFC_ALL_CHARS || defined DFFC_STANDARD_CHARS
return true;
#else
return false;
#endif
}
bool TDisplayFoundation::canDisplayText()
{
#if defined DFFC_FONT_VARI_16SEG || defined DFFC_ALL_CHARS || defined DFFC_STANDARD_CHARS
return true;
#else
return false;
#endif
}
bool TDisplayFoundation::canDisplaySpecial()
{
#if defined DFFC_ALL_CHARS || defined DFFC_SPECIAL_CHARS
return true;
#else
return false;
#endif
}
bool TDisplayFoundation::canDisplayGraphic()
{
#if defined DFFC_ALL_CHARS || defined DFFC_GRAPHIC_CHARS
return true;
#else
return false;
#endif
}
bool TDisplayFoundation::canDisplayAll()
{
#if defined DFFC_ALL_CHARS
return true;
#else
return false;
#endif
}
bool TDisplayFoundation::isCursorVisible()
{ return cursor; }
bool TDisplayFoundation::isControlCodeChar( unsigned char chr )
{ return ( chr <= 31 ); }
bool TDisplayFoundation::isNumericChar( unsigned char chr )
{ return ( chr >= '0' && chr <= '9' ); }
bool TDisplayFoundation::isAlphabetChar( unsigned char chr )
{ return (( chr >= 'a' && chr <= 'z' ) || ( chr >= 'A' && chr <= 'Z' )); }
bool TDisplayFoundation::isTextChar( unsigned char chr )
{
return (( isAlphabetChar( chr ) ) // 'a' .. 'z' / 'A' .. 'Z'
|| ( isCalcChar( chr ) ) // *+,-./
|| ( chr >= 32 && chr <= 47 ) // Space .. '/'
|| ( chr >= 58 && chr <= 64 ) // ':' .. '@'
|| ( chr >= 91 && chr <= 96 ) // '[' .. '`'
|| ( chr >= 123 && chr <= 126 ) ); // '{' .. '~'
}
bool TDisplayFoundation::isSpecialChar( unsigned char chr )
{
return (( chr >= 127 && chr <= 168 ) // '⌂'.. '¿'
|| ( chr >= 171 && chr <= 173 ) // '½'.. '¡'
|| ( chr >= 224 && chr <= 253 )); // alpha..'²'
}
bool TDisplayFoundation::isGraphicChar( unsigned char chr )
{
return (( chr >= 169 && chr <= 170 ) //
|| ( chr >= 174 && chr <= 223 ) // '«'..'▀'
|| ( chr >= 254 && chr <= 255 ) // '■'..' '
|| ( chr >= 14 && chr <= 31 )); // '♫'..'▼'
}
bool TDisplayFoundation::isCalcChar( unsigned char chr )
{ return (( chr >= '*' ) && ( chr <= '/' )); } // *+,-./
bool TDisplayFoundation::isPrintableChar( unsigned char chr, bool bAllowSpecialChars /* = true */ )
{
return ( ( isTextChar( chr ) )
|| ( isNumericChar( chr ) )
|| ( isCalcChar( chr ) )
|| ( ( bAllowSpecialChars ) && ( isSpecialChar( chr ) )) );
}
// ** getters **
DFC_UINT_TYPE TDisplayFoundation::getWidth()
{
return width;
}
DFC_UINT_TYPE TDisplayFoundation::getHeight()
{
return height;
}
DFC_UINT_TYPE TDisplayFoundation::getScreenWidth( bool bWithSpacing /* = true */ )
{
return calcCharPosition( width-1, fontWidth, bWithSpacing?charSpacing:0 );
}
DFC_UINT_TYPE TDisplayFoundation::getScreenHeight( bool bWithSpacing /* = true */ )
{
return calcCharPosition( height-1, fontHeight, bWithSpacing?lineSpacing:0 );
}
DFC_UINT_TYPE TDisplayFoundation::getX()
{
return cursX;
}
DFC_UINT_TYPE TDisplayFoundation::getY()
{
return cursY;
}
DFC_UINT_TYPE TDisplayFoundation::getScreenX( bool bWithSpacing /* = true */ )
{
return calcCharPosition( cursX, fontWidth, bWithSpacing?charSpacing:0 );
}
DFC_UINT_TYPE TDisplayFoundation::getScreenY( bool bWithSpacing /* = true */ )
{
return calcCharPosition( cursY, fontHeight, bWithSpacing?lineSpacing:0 );
}
DFC_UINT_TYPE TDisplayFoundation::getFontWidth()
{
return fontWidth;
}
DFC_UINT_TYPE TDisplayFoundation::getFontHeight()
{
return fontHeight;
}
bool TDisplayFoundation::getFontSmallSpace()
{
return smallSpace;
}
DFC_UINT_TYPE TDisplayFoundation::getCharSpacing()
{
return charSpacing;
}
DFC_UINT_TYPE TDisplayFoundation::getLineSpacing()
{
return lineSpacing;
}
DFC_UINT_TYPE TDisplayFoundation::getFG()
{
return fgColor;
}
DFC_UINT_TYPE TDisplayFoundation::getBG()
{
return bgColor;
}
uint8_t TDisplayFoundation::getPixel( DFC_UINT_TYPE x,
DFC_UINT_TYPE y,
uint8_t iReturnDefault /* = DF_PIXEL_TRANS */
)
{
if( onGetPixel != NULL )
{ return onGetPixel( this, x, y ); }
return iReturnDefault;
}
// ** Setters **
void TDisplayFoundation::setCursorX( DFC_UINT_TYPE x,
bool bWithSpacing /* = true */
)
{
if( cursor )
{ drawCursor(false); }
cursX = min( ((bWithSpacing && x > 0)?((x-1)*charSpacing):0)+(x*fontWidth), width-fontWidth-1 );
}
void TDisplayFoundation::setCursorY( DFC_UINT_TYPE y,
bool bWithSpacing /* = true */
)
{
if( cursor )
{ drawCursor(false); }
cursY = min( ((bWithSpacing && y > 0)?((y-1)*lineSpacing):0)+(y*fontHeight), height-fontHeight-1 );
}
void TDisplayFoundation::setCursor( DFC_UINT_TYPE x,
DFC_UINT_TYPE y,
bool bWithSpacing /* = true */
)
{
setCursorX( x, bWithSpacing );
setCursorY( y, bWithSpacing );
}
void TDisplayFoundation::setCursRow( DFC_UINT_TYPE y )
{
if( cursor )
{ drawCursor(false); }
cursY+=y*fontHeight;
if( cursY+fontHeight > height )
{
cursY = 0;
cursX = 0;
}
}
void TDisplayFoundation::setCursCol( DFC_UINT_TYPE x )
{
if( cursor )
{ drawCursor(false); }
cursX=x*fontWidth+charSpacing;
if( cursX+fontWidth > width )
{
cursX = 0;
setCursNextRow();
}
}
void TDisplayFoundation::setCursNewLine()
{
if( cursor )
{ drawCursor(false); }
cursY+=fontHeight+lineSpacing;
if( cursY+fontHeight > height )
{
cursY = 0;
}
cursX=0;
}
void TDisplayFoundation::newLine()
{
setCursNewLine();
}
void TDisplayFoundation::setCursNextRow()
{
if( cursor )
{ drawCursor(false); }
cursY+=fontHeight+lineSpacing;
if( cursY+fontHeight > height )
{
cursY = 0;
}
}
void TDisplayFoundation::setCursNextColumn( int8_t iExtraSpace /* = 0 */ )
{
if( cursor )
{ drawCursor(false); }
cursX+=fontWidth+charSpacing+iExtraSpace;
if( cursX+fontWidth > width )
{
cursX = 0;
setCursNextRow();
}
}
void TDisplayFoundation::setFontWidth( DFC_UINT_TYPE iValue )
{
fontWidth = min( iValue , width );
fontWidthHalf = (DFC_UINT_TYPE)fontWidth>>1;
}
void TDisplayFoundation::setFontHeight( DFC_UINT_TYPE iValue )
{
fontHeight = min( iValue, height );
fontHeightHalf = (DFC_UINT_TYPE)fontHeight>>1;
}
void TDisplayFoundation::setFontSize( DFC_UINT_TYPE iWidth /* = DF_DEF_FONT_WIDTH */,
DFC_UINT_TYPE iHeight /* = DF_DEF_FONT_HEIGHT */
)
{
setFontWidth( iWidth );
setFontHeight( iHeight );
}
void TDisplayFoundation::setFontSmallSpace( bool bValue )
{
smallSpace = bValue;
}
void TDisplayFoundation::setCharSpacing( DFC_UINT_TYPE iValue )
{
charSpacing = iValue;
}
void TDisplayFoundation::setLineSpacing( DFC_UINT_TYPE iValue )
{
lineSpacing = iValue;
}
void TDisplayFoundation::setSpacing( DFC_UINT_TYPE xCharValue,
DFC_UINT_TYPE yLineValue
)
{
setCharSpacing( xCharValue );
setLineSpacing( yLineValue );
}
void TDisplayFoundation::setWidth( DFC_UINT_TYPE iValue )
{
width = max( fontWidth , iValue );
}
void TDisplayFoundation::setHeight( DFC_UINT_TYPE iValue )
{
height = max( fontHeight, iValue );
}
void TDisplayFoundation::setSize( DFC_UINT_TYPE iWidth, DFC_UINT_TYPE iHeight )
{
setWidth( iWidth );
setHeight( iHeight );
}
void TDisplayFoundation::setFG( uint8_t iColor )
{
if( iColor != DF_PIXEL_FOREGROUND && iColor != DF_PIXEL_BACKGROUND )
{ fgColor = iColor; }
}
void TDisplayFoundation::setBG( uint8_t iColor )
{
if( iColor != DF_PIXEL_FOREGROUND && iColor != DF_PIXEL_BACKGROUND )
{ bgColor = iColor; }
}
void TDisplayFoundation::setPixel( DFC_UINT_TYPE x,
DFC_UINT_TYPE y,
uint8_t iSetMode /* = DF_PIXEL_FOREGROUND */
)
{
// calls event
if( iSetMode != DF_PIXEL_TRANS && onSetPixel != NULL )
{
if( ( iSetMode == DF_PIXEL_FOREGROUND && fgColor == DF_PIXEL_TRANS )
|| ( iSetMode == DF_PIXEL_BACKGROUND && bgColor == DF_PIXEL_TRANS ) )
{ return; }
if( iSetMode == DF_PIXEL_INVERT )
{
iSetMode = getPixel( x, y );
if( iSetMode == DF_PIXEL_TRANS || iSetMode == DF_PIXEL_INVERT )
{ return; }
onSetPixel( this, x, y,
iSetMode==DF_PIXEL_NORMAL?DF_PIXEL_CLEAR:
iSetMode==DF_PIXEL_CLEAR?DF_PIXEL_NORMAL:
iSetMode==DF_PIXEL_FOREGROUND?bgColor:
iSetMode==DF_PIXEL_BACKGROUND?fgColor:
iSetMode
);
}
else {
onSetPixel( this, x, y,
iSetMode==DF_PIXEL_FOREGROUND?fgColor:
iSetMode==DF_PIXEL_BACKGROUND?bgColor:
iSetMode
);
}
}
}
void TDisplayFoundation::showCursor()
{
cursor = true;
}
void TDisplayFoundation::hideCursor()
{
cursor = false;
}
void TDisplayFoundation::gotoScreenXY( DFC_UINT_TYPE x,
DFC_UINT_TYPE y,
bool bWithSpacing /* = false */
)
{
setCursor( x, y, bWithSpacing );
}
void TDisplayFoundation::gotoScreenX( DFC_UINT_TYPE x, bool bWithSpacing /* = false */ )
{
gotoScreenXY( x, getScreenY( bWithSpacing ), bWithSpacing );
}
void TDisplayFoundation::gotoScreenY( DFC_UINT_TYPE y, bool bWithSpacing /* = false */ )
{
gotoScreenXY( getScreenX( bWithSpacing ), y, bWithSpacing );
}
void TDisplayFoundation::gotoXY( DFC_UINT_TYPE x,
DFC_UINT_TYPE y
)
{
cursX = ( x < width )?x:0;
cursY = ( y < height )?y:0;
}
void TDisplayFoundation::gotoX( DFC_UINT_TYPE x )
{
gotoXY( x, cursY );
}
void TDisplayFoundation::gotoY( DFC_UINT_TYPE y )
{
gotoXY( cursX, y );
}
void TDisplayFoundation::drawCursor( bool bShow /* = true */ )
{
drawLine( cursX,
cursY+fontHeight+lineSpacing-1,
cursX+fontWidth,
cursY+fontHeight+lineSpacing-1,
bShow?((fgColor == DF_PIXEL_TRANS)?DF_PIXEL_NORMAL:fgColor):
((bgColor == DF_PIXEL_TRANS)?DF_PIXEL_CLEAR :bgColor)
);
}
#ifdef DFFC_FONT_VARI_16SEG
void TDisplayFoundation::drawCharSeg1( DFF_DATA_TYPE iCh )
{
if( iCh & _U ) { DF_DRAW_16SEG_U(); }
if( iCh & _T ) { DF_DRAW_16SEG_T(); }
if( iCh & _S ) { DF_DRAW_16SEG_S(); }
if( iCh & _R ) { DF_DRAW_16SEG_R(); }
if( iCh & _P ) { DF_DRAW_16SEG_P(); }
if( iCh & _N ) { DF_DRAW_16SEG_N(); }
if( iCh & _M ) { DF_DRAW_16SEG_M(); }
if( iCh & _K ) { DF_DRAW_16SEG_K(); }
}
void TDisplayFoundation::drawCharSeg2( DFF_DATA_TYPE iCh )
{
if( iCh & _H ) { DF_DRAW_16SEG_H(); }
if( iCh & _G ) { DF_DRAW_16SEG_G(); }
if( iCh & _F ) { DF_DRAW_16SEG_F(); }
if( iCh & _E ) { DF_DRAW_16SEG_E(); }
if( iCh & _D ) { DF_DRAW_16SEG_D(); }
if( iCh & _C ) { DF_DRAW_16SEG_C(); }
if( iCh & _B ) { DF_DRAW_16SEG_B(); }
if( iCh & _A ) { DF_DRAW_16SEG_A(); }
}
void TDisplayFoundation::drawChar( uint8_t c, bool bUseNextSpacing /* = true */ )
{
if( onDrawChar != NULL )
{
// Function returns true when handled
if( onDrawChar( this, c, &bUseNextSpacing ) )
{ return; }
}
if( bgColor != DF_PIXEL_TRANS )
{ drawFillRect( cursX, cursY, cursX+fontWidth, cursY+fontHeight, bgColor ); }
DFF_DATA_TYPE iCh = DFF_GET_CHAR_DATA(c);
#if _DP > 0
if( iCh & _DP ) { DF_DRAW_16SEG_DP(); iCh-=_DP; }
#else
if( c == '.' ) { DF_DRAW_16SEG_POINT(); return; }
#endif
// Avoid compiler/linker error: invalid opcode.
// Do not know what is exactly going on however when
// splitting the segment detection into two
// separated parts, it compiles fine. Compiler bug?
drawCharSeg1( iCh );
drawCharSeg2( iCh );
setCursNextColumn(bUseNextSpacing?0:-charSpacing);
}
#else
void TDisplayFoundation::drawChar( uint8_t c, bool bUseNextSpacing /* = true */ )
{
if( onDrawChar != NULL )
{
// Function returns true when handled
if( onDrawChar( this, c, &bUseNextSpacing ) )
{ return; }
}
if( c == ' ' && smallSpace )
{
setCursNextColumn(bUseNextSpacing?-fontWidthHalf:-charSpacing);
return;
}
if( fontWidth > DFF_WIDTH || fontHeight > DFF_HEIGHT )
{
drawScaledChar( c, bUseNextSpacing );
return;
}
if( fontWidth < DFF_WIDTH || fontHeight < DFF_HEIGHT )
{
drawSmallChar( c, bUseNextSpacing );
return;
}
DFF_DATA_TYPE iChrData;
uint8_t x = DFF_DATA_COUNT;
uint8_t y;
while( x-- )
{
iChrData = DFF_GET_CHAR_BYTE( c, x );
y = 8;
while( y-- )
{
setPixel( cursX+x,cursY+y, (iChrData & (1<<y))?fgColor:bgColor );
}
}
setCursNextColumn(bUseNextSpacing?0:-charSpacing);
}
void TDisplayFoundation::drawScaledChar( uint8_t c, bool bUseNextSpacing /* = true */ )
{
DFF_DATA_TYPE iChrData;
uint8_t x = fontWidth;
uint8_t y = fontHeight;
float xInc = 5.0/(float)fontWidth;
float yInc = 8.0/(float)fontHeight;
float fX = DFF_DATA_COUNT-1;
float fY;
uint8_t iX = DFF_DATA_COUNT-1;
uint8_t iY;
while( x-- )
{
if( cursX+x < width )
{
iChrData = DFF_GET_CHAR_BYTE( c, iX );
fY = iY = 7;
y = fontHeight;
while( y-- )
{
if( cursY+y < height )
{ setPixel( cursX+x,cursY+y, (iChrData & (1<<iY))?fgColor:bgColor ); }
fY-=yInc;
if( fY <= (iY-1) )
{ --iY; }
}
}
fX-=xInc;
if( fX <= (iX-1) )
{ --iX; }
}
setCursNextColumn(bUseNextSpacing?0:-charSpacing);
}
void TDisplayFoundation::drawSmallChar( uint8_t c, bool bUseNextSpacing /* = true */ )
{
DFF_DATA_TYPE iChrData;
uint8_t x = DFF_DATA_COUNT;
uint8_t y;
uint8_t xPlus = 0;
uint8_t yPlus = 0;
while( x-- )
{
if(( x == 1 && c != '1') || ( x == 4 && c == '1'))
{ xPlus=1; }
iChrData = DFF_GET_CHAR_BYTE( c, x );
y = 8;
while( y-- )
{
yPlus = (bool)(y<4);
setPixel( cursX+x+xPlus,cursY+y+yPlus, (iChrData & (1<<y))?fgColor:bgColor );
}
}
setCursNextColumn(bUseNextSpacing?0:-charSpacing);
}
#endif
void TDisplayFoundation::drawVertLine( DFC_UINT_TYPE x,
DFC_UINT_TYPE y,
DFC_UINT_TYPE l,
uint8_t iSetMode
)
{
if( x < width )
{
while( l-- && y < height )
{
setPixel( x, y++, iSetMode );
}
}
}
void TDisplayFoundation::drawHorzLine( DFC_UINT_TYPE x,
DFC_UINT_TYPE y,
DFC_UINT_TYPE l,
uint8_t iSetMode
)
{
if( y < height )
{
while( l-- && x < width )
{
setPixel( x++, y, iSetMode );
}
}
}
void TDisplayFoundation::drawLine( DFC_UINT_TYPE x1,
DFC_UINT_TYPE y1,
DFC_UINT_TYPE x2,
DFC_UINT_TYPE y2,
uint8_t iSetMode /* = DF_PIXEL_FOREGROUND */
)
{
if( y1==y2 )
{
swapVarIf(x1>x2,&x1,&x2);
drawHorzLine(x1, y1, x2-x1+1, iSetMode );
return;
}
if( x1==x2 )
{
swapVarIf(y1>y2,&y1,&y2);
drawVertLine(x1, y1, y2-y1+1, iSetMode );
return;
}
// Iterators, counters required by algorithm
DFC_UINT_TYPE x, y;
float dx, dy;
float dx1, dy1;
float px, py;
DFC_UINT_TYPE xe, ye, i;
// Calculate line deltas
dx = x2 - x1;
dy = y2 - y1;
// Create a positive copy of deltas (makes iterating easier)
dx1 = abs(dx);
dy1 = abs(dy);
// Calculate error intervals for both axis
px = 2 * dy1 - dx1;
py = 2 * dx1 - dy1;
// The line is X-axis dominant
if (dy1 <= dx1)
{
// Line is drawn left to right
if (dx >= 0)
{
x = x1;
y = y1;
xe = x2;
}
else { // Line is drawn right to left (swap ends)
x = x2;
y = y2;
xe = x1;
}
setPixel(x, y, iSetMode ); // Draw first pixel
// Rasterize the line
for (i = 0; x < xe; i++)
{
++x;
// Deal with octants...
if (px < 0)
{ px+=(2 * dy1); }
else {
if ((dx < 0 && dy < 0) || (dx > 0 && dy > 0))
{ ++y; }
else { --y; }
px+=(2 * (dy1 - dx1));
}
// Draw pixel from line span at
// currently rasterized position
setPixel(x, y, iSetMode);
}
} else { // The line is Y-axis dominant
// Line is drawn bottom to top
if (dy >= 0)
{ //Serial.println( "here" );
x = x1; y = y1; ye = y2; }
else { // Line is drawn top to bottom
x = x2; y = y2; ye = y1;
}
if( y > ye )
{
// some issues with the code below, for example when:
// - Different width and height is used
px=x;
dx=(abs(x2-x1)+1)/(y-ye);
while( y >= ye && (y || ye ))
{
//Serial.println( y );
//setPixel(px, y, iSetMode );
px+=dx;
if( y > 0 )
{ --y; }
}
}
else {
setPixel(x, y, iSetMode ); // Draw first pixel
// Rasterize the line
for (i = 0; y < ye; i++)
{
++y;
// Deal with octants...
if (py <= 0)
{ py+=(2 * dx1); }
else {
if ((dx < 0 && dy<0) || (dx > 0 && dy > 0))
{ ++x; }
else { --x; }
py+=(2 * (dx1 - dy1));
}
// Draw pixel from line span at
// currently rasterized position
setPixel(x, y, iSetMode );
}
}
}
}
void TDisplayFoundation::drawRect( DFC_UINT_TYPE x1,
DFC_UINT_TYPE y1,
DFC_UINT_TYPE x2,
DFC_UINT_TYPE y2,
uint8_t iSetMode /* = DF_PIXEL_FOREGROUND */
)
{
swapVarIf(x1>x2,&x1,&x2);
swapVarIf(y1>y2,&y1,&y2);
drawHorzLine(x1, y1, x2-x1+1, iSetMode );
drawHorzLine(x1, y2, x2-x1+1, iSetMode );
drawVertLine(x1, y1, y2-y1+1, iSetMode );
drawVertLine(x2, y1, y2-y1+1, iSetMode );
}
void TDisplayFoundation::drawFillRect( DFC_UINT_TYPE x1,
DFC_UINT_TYPE y1,
DFC_UINT_TYPE x2,
DFC_UINT_TYPE y2,
uint8_t iSetMode /* = DF_PIXEL_FOREGROUND */
)
{
swapVarIf(x1>x2,&x1,&x2);
swapVarIf(y1>y2,&y1,&y2);
while( y1 <= y2 )
{ drawHorzLine(x1, y1++, x2-x1+1, iSetMode ); }
}
void TDisplayFoundation::drawCharRect( DFC_UINT_TYPE x1,
DFC_UINT_TYPE y1,
DFC_UINT_TYPE x2, DFC_UINT_TYPE y2,
char ch /* = ' ' */
)
{
DFC_UINT_TYPE i = x1;
// Draw vertical lines
while( i < x2 )
{
gotoScreenXY( i, y1 );
drawChar( (char)ch, false );
gotoScreenXY( i++, y2 );
drawChar( (char)ch, false );
}
// Draw horizontal lines
i = y1+1;
--y2;
while( i < y2 )
{
gotoScreenXY( x1, i );
drawChar( (char)ch, false );
gotoScreenXY( x2, i++ );
drawChar( (char)ch, false );
}
}
void TDisplayFoundation::drawStrRect( DFC_UINT_TYPE x1,
DFC_UINT_TYPE y1,
DFC_UINT_TYPE x2,
DFC_UINT_TYPE y2,
const char* s
)
{
uint8_t iLen = strlen( s );
DFC_UINT_TYPE i = x1;
DFC_UINT_TYPE iX = 0;
uint8_t iStage = 0;
if( iLen == 0 )
{ return; }
if( iLen == 1 )
{
drawCharRect( x1, y1, x2, y2, *s );
return;
}
// Draw vertical lines
while( iStage < 4 )
{
if( iStage == 0 )
{
// To right
gotoScreenXY( i++, y1 );
if( i >= x2 )
{ ++iStage;
i = y1;
}
}
else
if( iStage == 1 )
{
// To bottom
gotoScreenXY( x2, i++ );
if( i >= y2 )
{ ++iStage;
i = x2;
}
}
else
if( iStage == 2 )
{
gotoScreenXY( i--, y2 );
if( i <= x1 )
{ ++iStage;
i = y2;
}
}
else
if( iStage == 3 )
{
gotoScreenXY( x1, i-- );
if( i <= y1 )
{ ++iStage; }
}
drawChar( (char)s[iX], false );
if( ++iX >= iLen )
{ iX=0; }
}
}
void TDisplayFoundation::drawCharFillRect( DFC_UINT_TYPE x1,
DFC_UINT_TYPE y1,
DFC_UINT_TYPE x2,
DFC_UINT_TYPE y2,
char ch /* = ' ' */
)
{
DFC_UINT_TYPE x;
while( y1 <= y2 )
{
x = x1;
gotoScreenXY( x, y1++ );
while( x <= x2 )
{
drawChar( (char)ch, false );
++x;
}
}
}
void TDisplayFoundation::drawStrFillRect( DFC_UINT_TYPE x1,
DFC_UINT_TYPE y1,
DFC_UINT_TYPE x2,
DFC_UINT_TYPE y2,
const char* s
)
{
DFC_UINT_TYPE x;
uint8_t iLen = strlen( s );
DFC_UINT_TYPE iX = 0;
if( iLen == 0 )
{ return; }
if( iLen == 1 )
{
drawCharFillRect( x1, y1,x2, y2, (char)*s );
return;
}
while( y1 <= y2 )
{
x = x1;
gotoScreenXY( x, y1++ );
while( x <= x2 )