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// 6 december 2015
#include <thread>
#include <chrono>
#include <mutex>
#include <condition_variable>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include "../../ui.h"
using namespace std;
uiMultilineEntry *e;
condition_variable cv;
mutex m;
unique_lock<mutex> ourlock(m);
thread *timeThread;
void sayTime(void *data)
{
char *s = (char *) data;
uiMultilineEntryAppend(e, s);
delete s;
}
void threadproc(void)
{
ourlock.lock();
while (cv.wait_for(ourlock, chrono::seconds(1)) == cv_status::timeout) {
time_t t;
char *base;
char *s;
t = time(NULL);
base = ctime(&t);
s = new char[strlen(base) + 1];
strcpy(s, base);
uiQueueMain(sayTime, s);
}
}
int onClosing(uiWindow *w, void *data)
{
cv.notify_all();
// C++ throws a hissy fit if you don't do this
// we might as well, to ensure no uiQueueMain() gets in after uiQuit()
timeThread->join();
uiQuit();
return 1;
}
void saySomething(uiButton *b, void *data)
{
uiMultilineEntryAppend(e, "Saying something\n");
}
int main(void)
{
uiInitOptions o;
uiWindow *w;
uiBox *b;
uiButton *btn;
memset(&o, 0, sizeof (uiInitOptions));
if (uiInit(&o) != NULL)
abort();
w = uiNewWindow("Hello", 320, 240, 0);
uiWindowSetMargined(w, 1);
b = uiNewVerticalBox();
uiBoxSetPadded(b, 1);
uiWindowSetChild(w, uiControl(b));
e = uiNewMultilineEntry();
uiMultilineEntrySetReadOnly(e, 1);
btn = uiNewButton("Say Something");
uiButtonOnClicked(btn, saySomething, NULL);
uiBoxAppend(b, uiControl(btn), 0);
uiBoxAppend(b, uiControl(e), 1);
// timeThread needs to lock ourlock itself - see http://stackoverflow.com/a/34121629/3408572
ourlock.unlock();
timeThread = new thread(threadproc);
uiWindowOnClosing(w, onClosing, NULL);
uiControlShow(uiControl(w));
uiMain();
return 0;
}
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