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added "click" events for both buttons and touch

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This commit is contained in:
Amy Bowersox 2019-12-11 11:32:19 -07:00
parent 7c844e6b69
commit 65999084c4
6 changed files with 33 additions and 0 deletions
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4
scripts/tmp_main.py
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@ -25,6 +25,8 @@ while upiwin.get_message(msg):
print("Button {0} was pressed.".format(msg['attrs'][0]))
elif msg['message'] == upiwin.WM_HWBUTTONUP:
print("Button {0} was released.".format(msg['attrs'][0]))
elif msg['message'] == upiwin.WM_HWBUTTONCLICK:
print("Button {0} was clicked.".format(msg['attrs'][0]))
bn = msg['attrs'][0]
if bn == 1:
print("Backlight ON.")
@ -41,3 +43,5 @@ while upiwin.get_message(msg):
log_touch('MOVE', msg['attrs'][0], msg['attrs'][1])
elif msg['message'] == upiwin.WM_TOUCHUP:
log_touch('UP', msg['attrs'][0], msg['attrs'][1])
elif msg['message'] == upiwin.WM_TOUCHCLICK:
log_touch('CLICK', msg['attrs'][0], msg['attrs'][1])

2
src/config.c
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@ -70,6 +70,8 @@ static void init_defaults(void)
Gconfig.python_loc = "/usr/bin/python3";
Gconfig.button_debounce = 100;
Gconfig.sys_mq_length = 64;
Gconfig.click_time = 200;
Gconfig.click_radius = 2;
}
static HRESULT parse_cmdline(int argc, char *argv[], GLOBAL_CONFIG *parsed)

2
src/config.h
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@ -12,6 +12,8 @@ typedef struct tagGLOBAL_CONFIG {
PCSTR python_loc; /* location of the Python3 executable */
UINT32 button_debounce; /* minimum time between button up and next button down (ms) */
UINT32 sys_mq_length; /* length of system message queue */
UINT32 click_time; /* time between button/touch DOWN and UP to be considered a "click" (ms) */
UINT32 click_radius; /* maximum number of pixels a touch can "drift" to be considered a "click" */
PCSTR script_name; /* script name to be run */
INT32 script_arg_count; /* number of arguments to pass to the script */
PPCSTR script_args; /* arguments to pass to the script */

2
src/ep_upiwin.c
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@ -44,9 +44,11 @@ BEGIN_CONSTANT_TABLE(UPIWINConstants)
CONSTANT_INT_MACRO(WM_QUIT)
CONSTANT_INT_MACRO(WM_HWBUTTONDOWN)
CONSTANT_INT_MACRO(WM_HWBUTTONUP)
CONSTANT_INT_MACRO(WM_HWBUTTONCLICK)
CONSTANT_INT_MACRO(WM_TOUCHDOWN)
CONSTANT_INT_MACRO(WM_TOUCHMOVE)
CONSTANT_INT_MACRO(WM_TOUCHUP)
CONSTANT_INT_MACRO(WM_TOUCHCLICK)
/* Raster op constants */
CONSTANT_INT_MACRO(R2_BLACK)
CONSTANT_INT_MACRO(R2_NOTMERGEPEN)

2
src/msg.h
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@ -17,9 +17,11 @@ typedef struct tagMSG {
#define WM_HWBUTTONDOWN 0x0020
#define WM_HWBUTTONUP 0x0021
#define WM_HWBUTTONCLICK 0x0022
#define WM_TOUCHDOWN 0x0030
#define WM_TOUCHMOVE 0x0031
#define WM_TOUCHUP 0x0032
#define WM_TOUCHCLICK 0x0033
#endif /* __MSG_H_INCLUDED */

21
src/sysinput.c
View File

@ -28,11 +28,14 @@ static pthread_cond_t wait_cond = PTHREAD_COND_INITIALIZER; /* condition for
/* Local data for poll_buttons() */
static UINT32 last_bstate = 0; /* previous button state */
static TIMESTAMP button_event_ok[GPIO_BUTTON_COUNT]; /* timestamps to debounce events */
static TIMESTAMP button_down_time[GPIO_BUTTON_COUNT]; /* timestamps for click detection */
/* Local data for poll_touchscreen() */
static UINT_PTR touch_x = 0; /* X coordinate to send with next message */
static UINT_PTR touch_y = 0; /* Y coordinate to send with next message */
static UINT32 touch_nextmsg = WM_TOUCHMOVE; /* identifier of next message to send */
static UINT_PTR touch_down_x, touch_down_y; /* location of the touch-down event for click detection */
static TIMESTAMP touch_down_time; /* timestamp for click detection */
static BOOL poll_buttons(void)
{
@ -57,11 +60,14 @@ static BOOL poll_buttons(void)
/* reset contact bounce timer - only seems to happen after button releases */
button_event_ok[attr - 1] = now + Gconfig.button_debounce;
Mq_post1(Sys_Queue, 0, WM_HWBUTTONUP, attr);
if ((now - button_down_time[attr - 1]) <= Gconfig.click_time)
Mq_post1(Sys_Queue, 0, WM_HWBUTTONCLICK, attr);
posted = TRUE;
}
else if (down & mask)
{
Mq_post1(Sys_Queue, 0, WM_HWBUTTONDOWN, attr);
button_down_time[attr - 1] = now;
posted = TRUE;
}
}
@ -74,6 +80,7 @@ static BOOL poll_touchscreen(void)
{
BOOL posted = FALSE;
int nb, nev, xerrno, i;
TIMESTAMP now;
struct input_event buffer[INPUT_EVENT_BATCH];
nb = read(ts_fd, buffer, INPUT_EVENT_BATCH * sizeof(struct input_event));
@ -102,7 +109,21 @@ static BOOL poll_touchscreen(void)
case EV_SYN:
if (buffer[i].code == SYN_REPORT)
{
now = Time_since_start();
Mq_post2(Sys_Queue, 0, touch_nextmsg, touch_x, touch_y);
if (touch_nextmsg == WM_TOUCHDOWN)
{
touch_down_x = touch_x;
touch_down_y = touch_y;
touch_down_time = now;
}
else if (touch_nextmsg = WM_TOUCHUP)
{
if ( ((now - touch_down_time) <= Gconfig.click_time)
&& (ABS((INT32)touch_x - (INT32)touch_down_x) <= Gconfig.click_radius)
&& (ABS((INT32)touch_y - (INT32)touch_down_y) <= Gconfig.click_radius))
Mq_post2(Sys_Queue, 0, WM_TOUCHCLICK, touch_x, touch_y);
}
touch_nextmsg = WM_TOUCHMOVE;
posted = TRUE;
}