//------------------------------------------------------------------------------
/// Clears a calibration point from the given buffer.
/// \param pLcdBuffer LCD buffer to draw on.
/// \param pPoint Calibration point to clear.
//------------------------------------------------------------------------------
static void ClearCalibrationPoint(
void *pLcdBuffer,
const CalibrationPoint *pPoint)
{
LCDD_DrawRectangle(pLcdBuffer,
pPoint->x - POINTS_SIZE / 2,
pPoint->y - POINTS_SIZE / 2,
POINTS_SIZE,
POINTS_SIZE,
COLOR_WHITE);
}
//clear display box zone with color
void ClearDispBoxZoneColor(unsigned int dispBoxID, unsigned int color)
{
if(IsDispBoxRegionAvail() && IsDispBoxEnable(dispBoxID)) {
LCDD_DrawRectangle((void *)BOARD_LCD_BASE, \
dispBoxMgr.dispBoxInfo[dispBoxID - 1].dispBoxZone.left,
dispBoxMgr.dispBoxInfo[dispBoxID - 1].dispBoxZone.top,
dispBoxMgr.dispBoxInfo[dispBoxID - 1].dispBoxZone.width,
dispBoxMgr.dispBoxInfo[dispBoxID - 1].dispBoxZone.height,
color);
}
}
static void prvLCDTask( void *pvParameters )
{
xLCDMessage xMessage;
unsigned long ulY = 0;
const unsigned long ulX = 5;
const unsigned long ulMaxY = 250, ulYIncrement = 22, ulWidth = 250, ulHeight = 20;;
/* Initialize LCD. */
LCDD_Initialize();
LCDD_Start();
LCDD_Fill( ( void * ) BOARD_LCD_BASE, COLOR_WHITE );
LCDD_DrawString( ( void * ) BOARD_LCD_BASE, 1, ulY + 3, " www.FreeRTOS.org", COLOR_BLACK );
for( ;; )
{
/* Wait for a message from the check function (which is executed in
the tick hook). */
xQueueReceive( xLCDQueue, &xMessage, portMAX_DELAY );
/* Clear the space where the old message was. */
LCDD_DrawRectangle( ( void * ) BOARD_LCD_BASE, 0, ulY, ulWidth, ulHeight, COLOR_WHITE );
/* Increment to the next drawing position. */
ulY += ulYIncrement;
/* Have the Y position moved past the end of the LCD? */
if( ulY >= ulMaxY )
{
ulY = 0;
}
/* Draw a new rectangle, in which the message will be written. */
LCDD_DrawRectangle( ( void * ) BOARD_LCD_BASE, 0, ulY, ulWidth, ulHeight, COLOR_GREEN );
/* Write the message. */
LCDD_DrawString( ( void * ) BOARD_LCD_BASE, ulX, ulY + 3, xMessage.pcMessage, COLOR_BLACK );
}
}
//------------------------------------------------------------------------------
/// Draw a string in display box with 'color'
/// \param pBuffer, LCD base address
/// \param dispBoxID, display box ID
/// \param pStr, string to draw
/// \param fontColor, font color
/// \param bgColor, background color
/// \param scrollFlag, idendtify if cleaning display box zone when scrolling back
/// to display box start position
//------------------------------------------------------------------------------
void DrawStringInDispBox(
//pointer to LCD base address
void *pBuffer,
//display box index
unsigned int dispBoxID,
//pointer to string for show
const char *pStr,
//display string font color,
unsigned int fontColor,
//display string background color, 0xFFFFFFFF means no need to set bgColor
unsigned int bgColor,
//flag for scroll way, current only support 'clear or not clear display box'
//when display string reach end and roll back to show.
//0 means clear, 1 means don't clear.
unsigned int scrollFlag)
{
unsigned int strWidth = 0;
unsigned int strHeight = 0;
extern const Font gFont;
const char *pString = pStr;
//text direction
unsigned int dir = 0;
////////////////////////////////////
unsigned int width = 0;
unsigned int height = 0;
unsigned int left = 0;
unsigned int top = 0;
///////////////////////////////////
TRACE_DEBUG(" draw string on lcd len is %u\n\r", strlen(pStr));
//no display box or disabled
if(!IsDispBoxRegionAvail() || !IsDispBoxEnable(dispBoxID)) {
//then display information on DBGU console;
printf("\n\r %s", pStr);
return;
}
#if defined(LCDC_HX8347)
if(LCDD_IsBusy()) return;
LCDD_SetBusy();
//a temp way to resolve display direction. Further will be improved based on requirement
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x16, 0x68);//); // MY=1, MX=0, MV=1, BGR=1
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x02, 0x00); // Column address start2
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x03, 0x00); // Column address start1
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x04, 0x01); // Column address end2
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x05, 0x3F); // Column address end1
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x06, 0x00); // Row address start2
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x07, 0x00); // Row address start1
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x08, 0x00); // Row address end2
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x09, 0xEF); // Row address end1
LCDD_ClearBusy();
#endif
////////////////////////////////////////////
if(gDir < 3 && gDir > 0)
//if(gDir >= 3 || gDir == 0)
{
// the protrait view,coordinates was changed after loading
//the Y is mirrored and x-y changed
height = dispBoxMgr.dispBoxInfo[dispBoxID-1].dispBoxZone.width;
//the width is to meet the algorithm calculating string lines
width = dispBoxMgr.dispBoxInfo[dispBoxID-1].dispBoxZone.height;
//it's strange but useful
left = dispBoxMgr.dispBoxInfo[dispBoxID-1].dispBoxZone.left + height;
top = dispBoxMgr.dispBoxInfo[dispBoxID-1].dispBoxZone.top ;
//for vertical
dir = 1;
}
else
{
width = dispBoxMgr.dispBoxInfo[dispBoxID-1].dispBoxZone.width;
height = dispBoxMgr.dispBoxInfo[dispBoxID-1].dispBoxZone.height;
top = dispBoxMgr.dispBoxInfo[dispBoxID-1].dispBoxZone.top;
left = dispBoxMgr.dispBoxInfo[dispBoxID-1].dispBoxZone.left;
dir = 0;
}
//count lines the string will use
////////////////////////////////////////////
//back from start of display box, then clear dispbox zone
if(\
(dispBoxMgr.dispBoxInfo[dispBoxID-1].xCursor == \
left + DISPMARGIN) \
&& \
(dispBoxMgr.dispBoxInfo[dispBoxID-1].yCursor == \
top + LINEDISTANCE)\
)
{
ClearDispBoxZoneDefault(dispBoxID);
}
if(dir)
{
if(\
(dispBoxMgr.dispBoxInfo[dispBoxID-1].xCursor == \
left - DISPMARGIN) \
&& \
(dispBoxMgr.dispBoxInfo[dispBoxID-1].yCursor == \
top + LINEDISTANCE)\
)
{
ClearDispBoxZoneDefault(dispBoxID);
}
}
LCDD_GetStringSize(pString, &strWidth, &strHeight);
TRACE_DEBUG(" string width and height in pixel is %u, %u\n\r", strWidth, strHeight);
//count lines the string will use
unsigned int linecnt = \
(strWidth + CHARDISTANCE) \
/ (width - DISPMARGIN) + 1;
//get how many chars the dispbox width can show
//to be consistent with lib API, a char width is gFont.width + CHARDISTANCE
unsigned int numCharLine = (width - DISPMARGIN) \
/ (gFont.width + CHARDISTANCE) - 1;
//if line count larger than current position to bottom of dispbox, clear dispbox area,
//reinit x,y to start of dispbox
if( linecnt * (gFont.height + LINEDISTANCE) \
> \
(height - \
(dispBoxMgr.dispBoxInfo[dispBoxID-1].yCursor - \
top - LINEDISTANCE))\
)
{
if(scrollFlag == 0) {
LCDD_DrawRectangle((void *)BOARD_LCD_BASE,
left,
top,
width,
height,
dispBoxMgr.dispBoxInfo[dispBoxID-1].bgColor);
}
dispBoxMgr.dispBoxInfo[dispBoxID-1].xCursor = \
left + DISPMARGIN;
dispBoxMgr.dispBoxInfo[dispBoxID-1].yCursor = \
top + LINEDISTANCE;
}
if(dir)
{
if( linecnt * (gFont.height + LINEDISTANCE) \
> \
(height - \
(left - dispBoxMgr.dispBoxInfo[dispBoxID-1].xCursor \
- LINEDISTANCE))\
)
{
if(scrollFlag == 0) {
// LCDD_DrawRectangle((void *)BOARD_LCD_BASE,
// left,
// top,
// width,
// height,
// dispBoxMgr.dispBoxInfo[dispBoxID-1].bgColor);
ClearDispBoxZoneDefault(dispBoxID);
}
dispBoxMgr.dispBoxInfo[dispBoxID-1].xCursor = \
left - DISPMARGIN;
dispBoxMgr.dispBoxInfo[dispBoxID-1].yCursor = \
top + LINEDISTANCE;
}
}
//if whole string show height larger than dispbox height, then only show the content
//inside dispbox, the rest is not shown any more
if((linecnt * (gFont.height + LINEDISTANCE) > \
height)) {
linecnt = height / (gFont.height+LINEDISTANCE);
//shrink string to a full dispbox size.
strWidth = linecnt * numCharLine * (gFont.width+CHARDISTANCE);
}
TRACE_DEBUG(" numcharline is %u, linecnt is %u\n\r", numCharLine, linecnt);
unsigned int i;
for(i = 0; i < linecnt; ++i) {
char stringline[80];
if(i == linecnt - 1) {
//the last char doesn't have additional CHARDISTANCE, to meet API in lib
memcpy(stringline, pString, (strWidth+CHARDISTANCE) / (gFont.width+CHARDISTANCE) + 1);
stringline[(strWidth+CHARDISTANCE)/(gFont.width+CHARDISTANCE)] = '\0';
} else {
memcpy(stringline, pString, numCharLine);
stringline[numCharLine] = '\0';
strWidth -= numCharLine * (gFont.width+CHARDISTANCE);
}
//forward pString to next line
pString += numCharLine;
//draw string
if(bgColor == 0xFFFFFFFF) {
LCDD_DrawStringEx((void *)BOARD_LCD_BASE,
dispBoxMgr.dispBoxInfo[dispBoxID-1].xCursor,
dispBoxMgr.dispBoxInfo[dispBoxID-1].yCursor,
stringline,
fontColor,dir);
}else {
LCDD_DrawStringWithBGColorEx((void *)BOARD_LCD_BASE,
dispBoxMgr.dispBoxInfo[dispBoxID-1].xCursor,
dispBoxMgr.dispBoxInfo[dispBoxID-1].yCursor,
stringline,
fontColor,
bgColor,dir);
}
//move x, y to next line, to be consistent with lib api, height is gFont.height + 2
if(dir)
{
// xCursor is vertical to the direction of text,along with the lines of text
dispBoxMgr.dispBoxInfo[dispBoxID-1].xCursor -= (gFont.height + LINEDISTANCE);
dispBoxMgr.dispBoxInfo[dispBoxID-1].yCursor = \
top + DISPMARGIN;
}
else
{
dispBoxMgr.dispBoxInfo[dispBoxID-1].xCursor = \
left + DISPMARGIN;
dispBoxMgr.dispBoxInfo[dispBoxID-1].yCursor += gFont.height + LINEDISTANCE;
}
}
#if defined(LCDC_HX8347)
if(LCDD_IsBusy()) return;
LCDD_SetBusy();
//restore previous direction setting
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x16, 0xC8);//); // MY=1, MX=1, MV=0, BGR=1
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x02, 0x00); // Column address start2
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x03, 0x00); // Column address start1
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x04, 0x00); // Column address end2
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x05, 0xEF); // Column address end1
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x06, 0x00); // Row address start2
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x07, 0x00); // Row address start1
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x08, 0x01); // Row address end2
LCD_WriteReg((void *)BOARD_LCD_BASE, 0x09, 0x3F); // Row address end1
LCDD_ClearBusy();
#endif
}