mirror of
https://github.com/Chatterino/chatterino2.git
synced 2024-11-21 22:24:07 +01:00
144 lines
3 KiB
C++
144 lines
3 KiB
C++
#include "Label.hpp"
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#include <QPainter>
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namespace chatterino {
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Label::Label(QString text, FontStyle style)
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: Label(nullptr, std::move(text), style)
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{
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}
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Label::Label(BaseWidget *parent, QString text, FontStyle style)
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: BaseWidget(parent)
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, text_(std::move(text))
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, fontStyle_(style)
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{
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this->connections_.managedConnect(getFonts()->fontChanged, [this] {
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this->updateSize();
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});
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}
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const QString &Label::getText() const
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{
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return this->text_;
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}
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void Label::setText(const QString &text)
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{
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if (this->text_ != text)
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{
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this->text_ = text;
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this->updateSize();
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this->update();
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}
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}
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FontStyle Label::getFontStyle() const
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{
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return this->fontStyle_;
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}
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bool Label::getCentered() const
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{
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return this->centered_;
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}
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void Label::setCentered(bool centered)
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{
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this->centered_ = centered;
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this->updateSize();
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}
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bool Label::getHasOffset() const
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{
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return this->hasOffset_;
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}
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void Label::setHasOffset(bool hasOffset)
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{
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this->hasOffset_ = hasOffset;
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this->updateSize();
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}
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void Label::setFontStyle(FontStyle style)
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{
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this->fontStyle_ = style;
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this->updateSize();
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}
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void Label::scaleChangedEvent(float scale)
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{
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this->updateSize();
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}
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QSize Label::sizeHint() const
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{
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return this->preferedSize_;
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}
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QSize Label::minimumSizeHint() const
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{
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return this->preferedSize_;
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}
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void Label::paintEvent(QPaintEvent *)
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{
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QPainter painter(this);
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qreal deviceDpi =
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#ifdef Q_OS_WIN
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this->devicePixelRatioF();
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#else
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1.0;
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#endif
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QFontMetrics metrics = getFonts()->getFontMetrics(
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this->getFontStyle(),
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this->scale() * 96.f /
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std::max<float>(0.01, this->logicalDpiX() * deviceDpi));
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painter.setFont(getFonts()->getFont(
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this->getFontStyle(),
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this->scale() * 96.f /
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std::max<float>(0.02, this->logicalDpiX() * deviceDpi)));
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int offset = this->getOffset();
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// draw text
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QRect textRect(offset, 0, this->width() - offset - offset, this->height());
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int width = metrics.horizontalAdvance(this->text_);
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Qt::Alignment alignment = !this->centered_ || width > textRect.width()
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? Qt::AlignLeft | Qt::AlignVCenter
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: Qt::AlignCenter;
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painter.setBrush(this->palette().windowText());
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QTextOption option(alignment);
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option.setWrapMode(QTextOption::NoWrap);
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painter.drawText(textRect, this->text_, option);
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#if 0
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painter.setPen(QColor(255, 0, 0));
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painter.drawRect(0, 0, this->width() - 1, this->height() - 1);
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#endif
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}
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void Label::updateSize()
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{
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QFontMetrics metrics =
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getFonts()->getFontMetrics(this->fontStyle_, this->scale());
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int width =
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metrics.horizontalAdvance(this->text_) + (2 * this->getOffset());
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int height = metrics.height();
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this->preferedSize_ = QSize(width, height);
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this->updateGeometry();
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}
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int Label::getOffset()
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{
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return this->hasOffset_ ? int(8 * this->scale()) : 0;
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}
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} // namespace chatterino
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