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59 lines
2.0 KiB
59 lines
2.0 KiB
/*
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* LXImage-Qt - a simple and fast image viewer
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* Copyright (C) 2013 PCMan <pcman.tw@gmail.com>
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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 General Public License as published by
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* the Free Software Foundation; either version 2 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include "screenshotselectareagraphicsview.h"
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#include <QMouseEvent>
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using namespace LxImage;
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ScreenshotSelectAreaGraphicsView::ScreenshotSelectAreaGraphicsView(QGraphicsScene* scene, QWidget* parent) : QGraphicsView(scene, parent)
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{
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p0_ = QPointF(-1.0, -1.0);
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selectedAreaRect_ = nullptr;
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setCursor(Qt::CrossCursor);
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}
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void ScreenshotSelectAreaGraphicsView::mousePressEvent(QMouseEvent *event)
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{
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if(p0_.x() < 0) {
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p0_ = QPointF(event->pos());
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} else {
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if(selectedAreaRect_ == nullptr) {
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QColor highlight = palette().color(QPalette::Active,QPalette::Highlight);
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QPen pen(highlight, 3, Qt::DashDotLine, Qt::RoundCap, Qt::RoundJoin);
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QColor color(highlight);
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color.setAlpha(128);
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QBrush brush(color);
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selectedAreaRect_ = scene()->addRect(QRectF(), pen, brush);
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}
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selectedAreaRect_->setRect(QRectF(p0_,QPointF(event->pos())).normalized());
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}
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}
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void ScreenshotSelectAreaGraphicsView::mouseMoveEvent(QMouseEvent *event)
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{
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mousePressEvent(event);
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}
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void ScreenshotSelectAreaGraphicsView::mouseReleaseEvent(QMouseEvent *event)
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{
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Q_EMIT selectedArea(QRectF(p0_,QPointF(event->pos())).normalized().toRect());
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}
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