libyui-61-deletechildren.cc

// https://github.com/libyui/libyui/issues/61
// g++ -std=c++11 $(pkg-config --cflags --libs libyui) -o a.out libyui-61-deletechildren.cc

#include "YUI.h"
#include "YWidgetFactory.h"
#include "YDialog.h"
#include "YLayoutBox.h"
#include "YSpacing.h"
#include "YLabel.h"
#include "YPushButton.h"
#include "YEvent.h"
#include "YDialogSpy.h"
#include "YReplacePoint.h"

int main(int argc, char **argv)
{
  /***************************************************************************************/
  auto wf = YUI::widgetFactory();
  auto mainDialog = wf->createMainDialog();
  auto rp = wf->createReplacePoint(mainDialog);

  auto mainVBox = wf->createVBox(rp);
  auto mainLabel = wf->createLabel(mainVBox, "Hello world!");
  wf->createVSpacing(mainVBox);
  auto mainButton = wf->createPushButton(mainVBox, "Close");

  mainDialog->pollEvent();
  YDialogSpy::showDialogSpy();

  while (true) {
    auto event = mainDialog->waitForEvent();
    if (event)
      if (event->eventType() == YEvent::CancelEvent || event->widget() == mainButton)
        break;
  }

  rp->deleteChildren();
  /*****************************************************************************************/
  mainVBox = wf->createVBox(rp);
  mainLabel = wf->createLabel(mainVBox, "Hello world #2!");
  wf->createVSpacing(mainVBox);
  mainButton = wf->createPushButton(mainVBox, "Close #2");
  rp->showChild();
  mainDialog->recalcLayout();

  mainDialog->pollEvent();
  YDialogSpy::showDialogSpy();

  while (true) {
    auto event = mainDialog->waitForEvent();
    if (event)
      if (event->eventType() == YEvent::CancelEvent || event->widget() == mainButton)
        break;
  }

  mainDialog->destroy();
  return 0;
}