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This commit is contained in:
Joachim Hummel
2022-06-19 11:10:04 +00:00
parent c729e2062b
commit e76db08b77
199 changed files with 69643 additions and 0 deletions
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113
Software/libraries/Adafruit_GFX-Library/examples/GFXcanvas/GFXcanvas.ino Normal file
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/***
This example is intended to demonstrate the use of getPixel() versus
getRawPixel() and the fast horizontal and vertical drawing routines
in the GFXcanvas family of classes,
When using the GFXcanvas* classes as the image buffer for a hardware driver,
there is a need to get individual pixel color values at given physical
coordinates. Rather than subclasses or client classes call getBuffer() and
reinterpret the byte layout of the buffer, two methods are added to each of the
GFXcanvas* classes that allow fetching of specific pixel values.
* getPixel(x, y) : Gets the pixel color value at the rotated coordinates in
the image.
* getRawPixel(x,y) : Gets the pixel color value at the unrotated coordinates
in the image. This is useful for getting the pixel value to map to a hardware
pixel location. This method was made protected as only the hardware driver
should be accessing it.
The GFXcanvas*SerialDemo classes in this example will print to Serial the
contents of the underlying GFXcanvas buffer in both the current rotated layout
and the underlying physical layout.
***/
#include "GFXcanvasSerialDemo.h"
#include <Arduino.h>
void setup() {
Serial.begin(115200);
// first create a rectangular GFXcanvas8SerialDemo object and draw to it
GFXcanvas8SerialDemo demo8(21, 11);
demo8.fillScreen(0x00);
demo8.setRotation(1); // now canvas is 11x21
demo8.fillCircle(5, 10, 5, 0xAA);
demo8.writeFastHLine(0, 0, 11, 0x11);
demo8.writeFastHLine(10, 10, -11, 0x22);
demo8.writeFastHLine(0, 20, 11, 0x33);
demo8.writeFastVLine(0, 0, 21, 0x44);
demo8.writeFastVLine(10, 20, -21, 0x55);
Serial.println("Demonstrating GFXcanvas rotated and raw pixels.\n");
// print it out rotated
Serial.println("The canvas's content in the rotation of '0':\n");
demo8.setRotation(0);
demo8.print(true);
Serial.println("\n");
Serial.println("The canvas's content in the rotation of '1' (which is what "
"it was drawn in):\n");
demo8.setRotation(1);
demo8.print(true);
Serial.println("\n");
Serial.println("The canvas's content in the rotation of '2':\n");
demo8.setRotation(2);
demo8.print(true);
Serial.println("\n");
Serial.println("The canvas's content in the rotation of '3':\n");
demo8.setRotation(3);
demo8.print(true);
Serial.println("\n");
// print it out unrotated
Serial.println("The canvas's content in it's raw, physical layout:\n");
demo8.print(false);
Serial.println("\n");
// Demonstrate GFXcanvas1SerialDemo
GFXcanvas1SerialDemo demo1(21, 11);
demo1.fillScreen(0);
demo1.setRotation(0);
demo1.writeFastHLine(0, 0, 9, 1);
demo1.setRotation(1);
demo1.writeFastHLine(0, 0, 9, 1);
demo1.setRotation(2);
demo1.writeFastHLine(0, 0, 9, 1);
demo1.setRotation(3);
demo1.writeFastHLine(0, 0, 9, 1);
demo1.setRotation(1);
demo1.fillRect(3, 8, 5, 5, 1);
Serial.println("\nThe GFXcanvas1 raw content after drawing a fast horizontal "
"line in each rotation:\n");
demo1.print(false);
Serial.println("\n");
// Demonstrate GFXcanvas16SerialDemo
GFXcanvas16SerialDemo demo16(21, 11);
demo16.fillScreen(0);
demo16.setRotation(0);
demo16.writeFastHLine(0, 0, 9, 0x1111);
demo16.setRotation(1);
demo16.writeFastHLine(0, 0, 9, 0x2222);
demo16.setRotation(2);
demo16.writeFastHLine(0, 0, 9, 0x3333);
demo16.setRotation(3);
demo16.writeFastHLine(0, 0, 9, 0x4444);
demo16.setRotation(1);
demo16.fillRect(3, 8, 5, 5, 0x8888);
Serial.println("\nThe GFXcanvas16 raw content after drawing a fast "
"horizontal line in each rotation:\n");
demo16.print(false);
Serial.println("\n");
}
void loop() {}

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Software/libraries/Adafruit_GFX-Library/examples/GFXcanvas/GFXcanvasSerialDemo.cpp Normal file
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#include "GFXcanvasSerialDemo.h"
#include <Arduino.h>
GFXcanvas1SerialDemo::GFXcanvas1SerialDemo(uint16_t w, uint16_t h)
: GFXcanvas1(w, h) {}
void GFXcanvas1SerialDemo::print(bool rotated) {
char pixel_buffer[8];
uint16_t width, height;
if (rotated) {
width = this->width();
height = this->height();
} else {
width = this->WIDTH;
height = this->HEIGHT;
}
for (uint16_t y = 0; y < height; y++) {
for (uint16_t x = 0; x < width; x++) {
bool pixel;
if (rotated) {
pixel = this->getPixel(x, y);
} else {
pixel = this->getRawPixel(x, y);
}
sprintf(pixel_buffer, " %d", pixel);
Serial.print(pixel_buffer);
}
Serial.print("\n");
}
}
GFXcanvas8SerialDemo::GFXcanvas8SerialDemo(uint16_t w, uint16_t h)
: GFXcanvas8(w, h) {}
void GFXcanvas8SerialDemo::print(bool rotated) {
char pixel_buffer[8];
uint16_t width, height;
if (rotated) {
width = this->width();
height = this->height();
} else {
width = this->WIDTH;
height = this->HEIGHT;
}
for (uint16_t y = 0; y < height; y++) {
for (uint16_t x = 0; x < width; x++) {
uint8_t pixel;
if (rotated) {
pixel = this->getPixel(x, y);
} else {
pixel = this->getRawPixel(x, y);
}
sprintf(pixel_buffer, " %02x", pixel);
Serial.print(pixel_buffer);
}
Serial.print("\n");
}
}
GFXcanvas16SerialDemo::GFXcanvas16SerialDemo(uint16_t w, uint16_t h)
: GFXcanvas16(w, h) {}
void GFXcanvas16SerialDemo::print(bool rotated) {
char pixel_buffer[8];
uint16_t width, height;
if (rotated) {
width = this->width();
height = this->height();
} else {
width = this->WIDTH;
height = this->HEIGHT;
}
for (uint16_t y = 0; y < height; y++) {
for (uint16_t x = 0; x < width; x++) {
uint16_t pixel;
if (rotated) {
pixel = this->getPixel(x, y);
} else {
pixel = this->getRawPixel(x, y);
}
sprintf(pixel_buffer, " %04x", pixel);
Serial.print(pixel_buffer);
}
Serial.print("\n");
}
}

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Software/libraries/Adafruit_GFX-Library/examples/GFXcanvas/GFXcanvasSerialDemo.h Normal file
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#ifndef __GFXcanvasSerialDemo__
#define __GFXcanvasSerialDemo__
#include <Adafruit_GFX.h>
/**********************************************************************/
/*!
@brief Demonstrates using the GFXconvas classes as the backing store
for a device driver.
*/
/**********************************************************************/
class GFXcanvas1SerialDemo : public GFXcanvas1 {
public:
GFXcanvas1SerialDemo(uint16_t w, uint16_t h);
/**********************************************************************/
/*!
@brief Prints the current contents of the canvas to Serial
@param rotated true to print according to the current GFX rotation,
false to print to the native rotation of the canvas (or unrotated).
*/
/**********************************************************************/
void print(bool rotated);
};
/**********************************************************************/
/*!
@brief Demonstrates using the GFXconvas classes as the backing store
for a device driver.
*/
/**********************************************************************/
class GFXcanvas8SerialDemo : public GFXcanvas8 {
public:
GFXcanvas8SerialDemo(uint16_t w, uint16_t h);
/**********************************************************************/
/*!
@brief Prints the current contents of the canvas to Serial
@param rotated true to print according to the current GFX rotation,
false to print to the native rotation of the canvas (or unrotated).
*/
/**********************************************************************/
void print(bool rotated);
};
/**********************************************************************/
/*!
@brief Demonstrates using the GFXconvas classes as the backing store
for a device driver.
*/
/**********************************************************************/
class GFXcanvas16SerialDemo : public GFXcanvas16 {
public:
GFXcanvas16SerialDemo(uint16_t w, uint16_t h);
/**********************************************************************/
/*!
@brief Prints the current contents of the canvas to Serial
@param rotated true to print according to the current GFX rotation,
false to print to the native rotation of the canvas (or unrotated).
*/
/**********************************************************************/
void print(bool rotated);
};
#endif // __GFXcanvasSerialDemo__