da4f584a50
* refactor: change to ternary op * refactor: apply recommendations to widgets * refactor: use QSignalBlocker * refactor: address some compiler complaints * refactor: add namespace Gui to new widgets
74 lines
2.8 KiB
C++
74 lines
2.8 KiB
C++
// SPDX-License-Identifier: LGPL-2.1-or-later
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/****************************************************************************
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* *
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* Copyright (c) 2025 Alfredo Monclus <alfredomonclus@gmail.com> *
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* *
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* This file is part of FreeCAD. *
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* *
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* FreeCAD is free software: you can redistribute it and/or modify it *
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* under the terms of the GNU Lesser General Public License as *
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* published by the Free Software Foundation, either version 2.1 of the *
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* License, or (at your option) any later version. *
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* *
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* FreeCAD is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with FreeCAD. If not, see *
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* <https://www.gnu.org/licenses/>. *
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* *
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***************************************************************************/
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// This custom widget scales an svg according to fonts
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#include "PreCompiled.h"
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#include "FontScaledSVG.h"
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namespace Gui {
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FontScaledSVG::FontScaledSVG(QWidget *parent)
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: QWidget(parent), m_svgRenderer(new QSvgRenderer(this)) {
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setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
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}
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void FontScaledSVG::setSvg(const QString &svgPath) {
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if (m_svgRenderer->load(svgPath)) {
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updateScaledSize();
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update();
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}
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}
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void FontScaledSVG::paintEvent(QPaintEvent *event) {
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Q_UNUSED(event);
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QPainter painter(this);
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if (m_svgRenderer->isValid()) {
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QRect targetRect(0, 0, width(), height());
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m_svgRenderer->render(&painter, targetRect);
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}
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}
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void FontScaledSVG::resizeEvent(QResizeEvent *event) {
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Q_UNUSED(event);
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updateScaledSize();
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}
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void FontScaledSVG::updateScaledSize() {
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QSize baseSize = m_svgRenderer->defaultSize();
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QFontMetrics metrics(font());
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qreal spacing = metrics.lineSpacing();
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constexpr int baseFactor = 18;
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qreal scalingFactor = spacing / baseFactor;
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QSize targetSize = baseSize * scalingFactor;
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setFixedSize(targetSize);
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}
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} // namespace Gui
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#include "moc_FontScaledSVG.cpp" // NOLINT
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