mirror of
https://github.com/iDescriptor/iDescriptor.git
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uncor3
85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/*
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* iDescriptor: A free and open-source idevice management tool.
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*
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* Copyright (C) 2025 Uncore <https://github.com/uncor3>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published
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* by the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "responsiveqlabel.h"
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#include <QDebug>
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#include <QPainter>
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ResponsiveQLabel::ResponsiveQLabel(QWidget *parent) : QLabel(parent)
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{
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setAlignment(Qt::AlignCenter);
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setScaledContents(false);
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setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
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setMinimumSize(100, 100);
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}
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void ResponsiveQLabel::setPixmap(const QPixmap &pixmap)
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{
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m_originalPixmap = pixmap;
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updateScaledPixmap();
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}
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void ResponsiveQLabel::resizeEvent(QResizeEvent *event)
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{
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QLabel::resizeEvent(event);
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if (!m_originalPixmap.isNull()) {
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updateScaledPixmap();
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}
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}
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void ResponsiveQLabel::paintEvent(QPaintEvent *event)
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{
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if (m_scaledPixmap.isNull()) {
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QLabel::paintEvent(event);
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return;
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}
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing);
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painter.setRenderHint(QPainter::SmoothPixmapTransform);
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// Calculate position to center the pixmap
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int x = (width() - m_scaledPixmap.width()) / 2;
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int y = (height() - m_scaledPixmap.height()) / 2;
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painter.drawPixmap(x, y, m_scaledPixmap);
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}
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void ResponsiveQLabel::updateScaledPixmap()
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{
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if (m_originalPixmap.isNull()) {
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return;
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}
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// Use the minimum width as the constraint for scaling
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int targetWidth = qMax(minimumWidth(), width());
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// Scale the pixmap while maintaining aspect ratio
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m_scaledPixmap =
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m_originalPixmap.scaled(targetWidth, QWIDGETSIZE_MAX,
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Qt::KeepAspectRatio, Qt::SmoothTransformation);
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// Resize the widget to match the scaled pixmap size
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// This prevents the widget from taking up more space than the actual image
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if (!m_scaledPixmap.isNull()) {
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setFixedSize(m_scaledPixmap.size());
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}
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update();
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} |