72 lines
1.7 KiB
C++
72 lines
1.7 KiB
C++
#include "displayText.h"
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#include "Arduino.h"
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//constructor
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DisplayText::DisplayText(Adafruit_ST7796S_kbv& tftDisplay) : tft(tftDisplay) {
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tft.setCursor(0,0);
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tft.fillScreen(ST7796S_BLACK);
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}
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void DisplayText::writeText(char* text, int size, int posX, int posY, int screenTime, bool center, bool bottom) {
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if (center) {
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posX = centerText(text);
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}
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if (bottom) {
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posY = bottomText(text);
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}
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tft.setCursor(posX, posY);
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tft.setTextSize(size);
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printWordsFull(text);
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delay(screenTime);
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}
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int DisplayText::centerText(char* text) {
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int16_t x1, y1;
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uint16_t w, h;
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tft.getTextBounds(text, 0, 0, &x1, &y1, &w, &h);
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int x = (tft.width() - w) / 2;
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return x;
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}
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int DisplayText::bottomText(char* text) {
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int16_t x1, y1;
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uint16_t w, h;
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tft.getTextBounds(text, 0, 0, &x1, &y1, &w, &h);
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int y = (tft.height() - h);
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return y;
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}
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void DisplayText::printWordsFull(char* text) {
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char* textArray[100];
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int i = 0;
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char* textCopy = strdup(text);
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char* word = strtok(text, " ");
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while (word != NULL) {
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textArray[i] = word;
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word = strtok(NULL, " ");
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i++;
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}
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int lineWidth = 0;
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int maxLineWidth = 320; // replace with the width of your TFT display
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int charWidth = 11; // replace with the width of your characters
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for (int j = 0; j < i; j++) {
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int wordLength = strlen(textArray[j]);
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// If the word won't fit on the current line, move to the next line
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if (lineWidth + wordLength * charWidth > maxLineWidth) {
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tft.println();
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lineWidth = 0;
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}
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tft.print(textArray[j]);
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tft.print(" ");
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lineWidth += (wordLength + 1) * charWidth; // +1 for the space
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}
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free(textCopy);
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} |