mirror of https://github.com/Nheko-Reborn/nheko
Konstantinos Sideris
7 years ago
parent
ebe36b5713
commit
ac525970b0
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#pragma once |
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#include <QCoreApplication> |
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#include <QPaintEvent> |
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#include <QStateMachine> |
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#include <QTimer> |
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#include "OverlayWidget.h" |
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enum class SnackBarPosition { |
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Bottom, |
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Top, |
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}; |
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class SnackBar : public OverlayWidget |
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{ |
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Q_OBJECT |
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public: |
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explicit SnackBar(QWidget *parent); |
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~SnackBar(); |
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inline void setBackgroundColor(const QColor &color); |
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inline void setTextColor(const QColor &color); |
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inline void setPosition(SnackBarPosition pos); |
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public slots: |
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void showMessage(const QString &msg); |
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protected: |
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void paintEvent(QPaintEvent *event) override; |
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void mousePressEvent(QMouseEvent *event) override; |
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private slots: |
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void onTimeout(); |
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void hideMessage(); |
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private: |
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void stopTimers(); |
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void start(); |
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QColor bgColor_; |
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QColor textColor_; |
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qreal bgOpacity_; |
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qreal offset_; |
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QList<QString> messages_; |
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QTimer *showTimer_; |
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QTimer *hideTimer_; |
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int duration_; |
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int boxWidth_; |
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int boxHeight_; |
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int boxPadding_; |
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SnackBarPosition position_; |
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}; |
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inline void |
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SnackBar::setPosition(SnackBarPosition pos) |
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{ |
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position_ = pos; |
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update(); |
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} |
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inline void |
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SnackBar::setBackgroundColor(const QColor &color) |
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{ |
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bgColor_ = color; |
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update(); |
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} |
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inline void |
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SnackBar::setTextColor(const QColor &color) |
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{ |
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textColor_ = color; |
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update(); |
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} |
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@ -0,0 +1,143 @@ |
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#include <QDebug> |
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#include <QPainter> |
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#include "SnackBar.h" |
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constexpr int STARTING_OFFSET = 1; |
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SnackBar::SnackBar(QWidget *parent) |
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: OverlayWidget(parent) |
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{ |
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bgOpacity_ = 0.9; |
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duration_ = 6000; |
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boxWidth_ = 400; |
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boxHeight_ = 40; |
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boxPadding_ = 10; |
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textColor_ = QColor("white"); |
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bgColor_ = QColor("#333"); |
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offset_ = STARTING_OFFSET; |
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position_ = SnackBarPosition::Top; |
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QFont font("Open Sans", 14, QFont::Medium); |
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setFont(font); |
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showTimer_ = new QTimer(); |
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hideTimer_ = new QTimer(); |
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hideTimer_->setSingleShot(true); |
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connect(showTimer_, SIGNAL(timeout()), this, SLOT(onTimeout())); |
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connect(hideTimer_, SIGNAL(timeout()), this, SLOT(hideMessage())); |
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} |
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SnackBar::~SnackBar() |
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{ |
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stopTimers(); |
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delete showTimer_; |
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delete hideTimer_; |
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} |
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void |
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SnackBar::start() |
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{ |
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show(); |
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raise(); |
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showTimer_->start(10); |
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} |
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void |
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SnackBar::hideMessage() |
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{ |
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stopTimers(); |
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hide(); |
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// Moving on to the next message.
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messages_.removeFirst(); |
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// Reseting the starting position of the widget.
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offset_ = STARTING_OFFSET; |
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if (!messages_.isEmpty()) |
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start(); |
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} |
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void |
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SnackBar::stopTimers() |
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{ |
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showTimer_->stop(); |
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hideTimer_->stop(); |
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} |
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void |
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SnackBar::showMessage(const QString &msg) |
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{ |
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messages_.push_back(msg); |
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// There is already an active message.
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if (isVisible()) |
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return; |
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start(); |
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} |
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void |
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SnackBar::onTimeout() |
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{ |
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offset_ -= 0.5; |
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if (offset_ <= 0.0) { |
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showTimer_->stop(); |
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hideTimer_->start(duration_); |
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} |
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update(); |
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} |
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void |
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SnackBar::mousePressEvent(QMouseEvent *) |
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{ |
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hideMessage(); |
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} |
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void |
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SnackBar::paintEvent(QPaintEvent *event) |
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{ |
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Q_UNUSED(event) |
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if (messages_.isEmpty()) |
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return; |
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auto message_ = messages_.first(); |
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QPainter p(this); |
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p.setRenderHint(QPainter::Antialiasing); |
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QBrush brush; |
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brush.setStyle(Qt::SolidPattern); |
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brush.setColor(bgColor_); |
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p.setBrush(brush); |
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p.setOpacity(bgOpacity_); |
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QRect r(0, 0, boxWidth_, boxHeight_); |
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p.setPen(Qt::white); |
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QRect br = p.boundingRect(r, Qt::AlignHCenter | Qt::AlignTop | Qt::TextWordWrap, message_); |
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p.setPen(Qt::NoPen); |
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r = br.united(r).adjusted(-boxPadding_, -boxPadding_, boxPadding_, boxPadding_); |
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const qreal s = 1 - offset_; |
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if (position_ == SnackBarPosition::Bottom) |
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p.translate((width() - (r.width() - 2 * boxPadding_)) / 2, |
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height() - boxPadding_ - s * (r.height())); |
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else |
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p.translate((width() - (r.width() - 2 * boxPadding_)) / 2, |
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s * (r.height()) - 2 * boxPadding_); |
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br.moveCenter(r.center()); |
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p.drawRoundedRect(r.adjusted(0, 0, 0, 3), 3, 3); |
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p.setPen(textColor_); |
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p.drawText(br, Qt::AlignHCenter | Qt::AlignTop | Qt::TextWordWrap, message_); |
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} |
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