yuzu/MCUFRIEND_kbv
1
0
Fork 0
mirror of https://github.com/YuzuZensai/MCUFRIEND_kbv.git synced 2026-01-30 20:24:15 +00:00
Code Issues Packages Projects Releases Wiki Activity

separate files for each approach

Browse Source
This commit is contained in:
prenticedavid
2018-05-15 12:35:23 +01:00
parent a45a9d7d23
commit d5d9fe2433
2 changed files with 119 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
examples/button_simple/button_simple.ino
View File

@@ -1,3 +1,5 @@
#if 1
#include <Adafruit_GFX.h>
#include <MCUFRIEND_kbv.h>
MCUFRIEND_kbv tft;
@@ -58,8 +60,6 @@ void setup(void)
}
/* two buttons are quite simple
* rename to loop() function to loop_old()
* and loop_new() to loop() to see another way
*/
void loop(void)
{
@@ -79,51 +79,6 @@ void loop(void)
tft.fillRect(40, 80, 160, 80, RED);
}
}
#endif
/* Unused functions to illustrate:
* updating multiple buttons from a list
* anything more than two buttons gets repetitive
*
* compare the simplicity of update_button_list()
*/
// Array of button addresses to behave like a list
Adafruit_GFX_Button *buttons[] = {&on_btn, &off_btn, NULL};
void loop_new(void)
{
update_button_list(buttons); //use helper function
if (on_btn.justPressed()) {
tft.fillRect(40, 80, 160, 80, GREEN);
}
if (off_btn.justPressed()) {
tft.fillRect(40, 80, 160, 80, RED);
}
}
/* update the state of a button and redraw as reqd
*
* main program can use isPressed(), justPressed() etc
*/
bool update_button(Adafruit_GFX_Button *b, bool down)
{
b->press(down && b->contains(pixel_x, pixel_y));
if (b->justReleased())
b->drawButton(false);
if (b->justPressed())
b->drawButton(true);
return down;
}
/* most screens have different sets of buttons
* life is easier if you process whole list in one go
*/
bool update_button_list(Adafruit_GFX_Button **pb)
{
bool down = Touch_getXY();
for (int i = 0 ; pb[i] != NULL; i++) {
update_button(pb[i], down);
}
return down;
}