attempt to write text in full

This commit is contained in:
2024-03-12 16:24:26 +01:00
parent 57ee918b64
commit d542da7db9
3 changed files with 42 additions and 41 deletions

View File

@@ -39,5 +39,5 @@ void loop() {
// writeText(Answer[0], 2, 50, 300, 4000);
displayText.writeText(Question[i], 3, 0, 0, 0, true, false);
displayText.writeText(Answer[i], 3, 0, 200, 0, true, true);
delay(20000);
delay(2000);
}

View File

@@ -11,14 +11,15 @@ void DisplayText::writeText(char* text, int size, int posX, int posY, int screen
if (center) {
posX = centerText(text);
}
if (bottom) {
posY = bottomText(text);
}
// if (bottom) {
// posY = bottomText(text);
// }
tft.setCursor(posX, posY);
tft.setTextSize(size);
printWordsFull(text);
delay(screenTime);
}
//to center the text when enabled in the public function
int DisplayText::centerText(char* text) {
int16_t x1, y1;
@@ -27,49 +28,49 @@ int DisplayText::centerText(char* text) {
int x = (tft.width() - w) / 2;
return x;
}
//to dijsplay the text at the bottom when enabled in the public function
int DisplayText::bottomText(char* text) {
int16_t x1, y1;
uint16_t w, h;
tft.getTextBounds(text, 0, 0, &x1, &y1, &w, &h);
int y = (tft.height() - h);
return y;
}
// //to display the text at the bottom when enabled in the public function
// int DisplayText::bottomText(char* text) {
// int16_t x1, y1;
// uint16_t w, h;
// tft.getTextBounds(text, 0, 0, &x1, &y1, &w, &h);
// int y = (tft.height() - h);
// return y;
// }
//attempt to write the text out in full (wip)
void DisplayText::printWordsFull(char* text) {
const int screenWidth = 320; // replace with your TFT display width
const int lineHeight = 22; // replace with your text line height
char* textArray[100];
int i = 0;
//copy the text into a variable so the string can be re-used later
char* textCopy = strdup(text);
//split the text into words and put them into a array
char* word = strtok(text, " ");
char line[100] = "";
int lineCount = 0;
while (word != NULL) {
textArray[i] = word;
word = strtok(NULL, " ");
i++;
}
char tempLine[100];
strcpy(tempLine, line);
strcat(tempLine, word);
strcat(tempLine, " ");
int lineWidth = 0;
int maxLineWidth = 320; // replace with the width of your TFT display
int charWidth = 11; // replace with the width of your characters
for (int j = 0; j < i; j++) {
//count the amount of letters in the word
int wordLength = strlen(textArray[j]);
int16_t x1, y1;
uint16_t w, h;
tft.getTextBounds(tempLine, 0, 0, &x1, &y1, &w, &h);
// If the word won't fit on the current line, move to the next line
if (lineWidth + wordLength * charWidth > maxLineWidth) {
tft.println();
//reset lineWidth
lineWidth = 0;
if (w > screenWidth && strlen(line) > 0) {
tft.setCursor(0, lineHeight * lineCount);
tft.println(line);
lineCount++;
strcpy(line, word);
strcat(line, " ");
} else {
strcpy(line, tempLine);
}
//print the text
tft.print(textArray[j]);
tft.print(" ");
lineWidth += (wordLength + 1) * charWidth; // +1 for the space
}
//removes textCopy out of the memory
free(textCopy);
word = strtok(NULL, " ");
}
// print the last line
tft.setCursor(0, lineHeight * lineCount);
tft.println(line);
}

View File

@@ -8,7 +8,7 @@ class DisplayText {
private:
Adafruit_ST7796S_kbv& tft;
int centerText(char* text);
int bottomText(char* text);
// int bottomText(char* text);
void printWordsFull(char* text);
public: