QtNovaUI/Label.cpp at master · umar-masood/QtNovaUI · GitHub

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#include "Label.h"

/* --------------- Custom Text Label (With and Without Icon) ------------------ */
Label::Label(bool isIconic,
            Qt::Alignment alignment,
            QWidget *parent) : QLabel(parent)
{
   setAttribute(Qt::WA_TranslucentBackground);
   setAlignment(alignment);
}

Label::Label(const QString &family,
            int pointSize,
            QFont::Weight weight,
            bool italic,
            const QString &text,
            Qt::Alignment alignment,
            QWidget *parent) : QLabel(parent)
{
   setAttribute(Qt::WA_TranslucentBackground);
   setAlignment(alignment);
   setText(text);

   QFont fnt;
   fnt.setPointSize(pointSize);
   fnt.setFamily(family);
   fnt.setWeight(weight);
   fnt.setItalic(italic);
   setFont(fnt);
}

AnimatedLabel::AnimatedLabel(bool isIconic,
                           const QString &family,
                           int pointSize,
                           QFont::Weight weight,
                           bool italic,
                           const QString &text,
                           Qt::Alignment alignment,
                           QWidget *parent) : QLabel(parent)
{
   setAttribute(Qt::WA_TranslucentBackground);
   setAlignment(alignment);
   init();
}

AnimatedLabel::AnimatedLabel(const QString &family,
                           int pointSize,
                           QFont::Weight weight,
                           bool italic,
                           const QString &text,
                           Qt::Alignment alignment,
                           QWidget *parent) : QLabel(parent)
{
   setAttribute(Qt::WA_TranslucentBackground);
   setAlignment(alignment);

   QFont fnt;
   fnt.setPointSize(pointSize);
   fnt.setFamily(family);
   fnt.setWeight(weight);
   fnt.setItalic(italic);
   setFont(fnt);
   setText(text);
}

void AnimatedLabel::init() {
   // Opacity effect
   effect = new SmoothOpacity(this);
   effect->setOpacity(0.0);
   setGraphicsEffect(effect);

   // Fade In Animation
   fadeIn = new QPropertyAnimation(effect, "opacity", this);
   fadeIn->setStartValue(0.0);
   fadeIn->setEndValue(1.0);
   fadeIn->setDuration(500);
   fadeIn->setEasingCurve(QEasingCurve::InOutQuad);

   // Fade Out Animation
   fadeOut = new QPropertyAnimation(effect, "opacity", this);
   fadeOut->setStartValue(1.0);
   fadeOut->setEndValue(0.0);
   fadeOut->setDuration(500);
   fadeOut->setEasingCurve(QEasingCurve::InOutQuad);

   connect(fadeOut, &QPropertyAnimation::finished, this, [this]() {
      QLabel::hide();
      setGraphicsEffect(nullptr);
      effect->setOpacity(1.0);
   });
}

void AnimatedLabel::show() {
   if (!isVisible()) {
      effect->setOpacity(0.0);
      QLabel::show();
   }

   fadeIn->start();
}

void AnimatedLabel::hide() {
   fadeOut->start();
}

void AnimatedLabel::setAnimatedText(const QString &text) {
   hide();
   QTimer::singleShot(500, this, [this, text]() {
      QLabel::setText(text);
      show();
   });
}