113 lines
3.2 KiB
C++
113 lines
3.2 KiB
C++
/*
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* Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
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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 3, or (at your option)
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* 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
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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**/
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#include "iconbutton.h"
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#include <QPainter>
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#include <QStyleOptionButton>
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#include <QPainterPath>
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#include <QPixmap>
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#include <QDebug>
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static inline qreal mixQreal(qreal a, qreal b, qreal bias)
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{
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return a + (b - a) * bias;
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}
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IconButton::IconButton(QWidget *parent)
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:QPushButton(parent)
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{
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}
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IconButton::~IconButton()
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{
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}
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QColor IconButton::mixColor(const QColor &c1, const QColor &c2, qreal bias)
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{
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if (bias <= 0.0) {
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return c1;
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}
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if (bias >= 1.0) {
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return c2;
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}
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if (qIsNaN(bias)) {
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return c1;
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}
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qreal r = mixQreal(c1.redF(), c2.redF(), bias);
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qreal g = mixQreal(c1.greenF(), c2.greenF(), bias);
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qreal b = mixQreal(c1.blueF(), c2.blueF(), bias);
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qreal a = mixQreal(c1.alphaF(), c2.alphaF(), bias);
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return QColor::fromRgbF(r, g, b, a);
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}
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void IconButton::paintEvent(QPaintEvent *event){
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Q_UNUSED(event)
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QStyleOptionButton option;
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initStyleOption(&option);
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QPainter p(this);
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p.setRenderHint(QPainter::HighQualityAntialiasing);
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p.setRenderHint(QPainter::Antialiasing);
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p.setRenderHint(QPainter::TextAntialiasing);
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p.setRenderHint(QPainter::SmoothPixmapTransform);
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QColor backgroundColor;
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QColor mix = option.palette.brightText().color();
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QColor highlight = option.palette.highlight().color();
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if(option.state.testFlag(QStyle::State_MouseOver)) /*鼠标在按钮上(hover状态)*/
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{
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if(option.state.testFlag(QStyle::State_Sunken)) { /*按钮被选中（clicked）*/
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backgroundColor = mixColor(highlight,mix,0.2);
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} else {
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backgroundColor = mixColor(highlight,mix,0.1);
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}
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} else {
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backgroundColor = mixColor(highlight,mix,0.05);
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}
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/*绘制背景色和rect*/
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p.save();
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p.setPen(Qt::NoPen);
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QPoint point;
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QRect ir = option.rect;
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if(option.state.testFlag(QStyle::State_HasFocus)) {
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p.setBrush(QColor("#3D6BE5"));
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p.drawRoundedRect(option.rect, 12, 12);
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p.setBrush(backgroundColor);
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p.drawRoundedRect(option.rect.adjusted(2, 2, -2, -2), 12, 12);
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} else {
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p.setBrush(backgroundColor);
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p.drawRoundedRect(option.rect, 12, 12);
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}
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QPixmap pixmap = option.icon.pixmap(option.iconSize, QIcon::Active, QIcon::On);
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point = QPoint(ir.x() + ir.width() / 2 - (pixmap.width() + 1) / 2,
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ir.y() + ir.height() / 2 - (pixmap.height() + 2)/ 2);
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// qDebug() << "point = " << point;
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p.drawPixmap(this->style()->visualPos(option.direction, option.rect, point), pixmap);
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p.restore();
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}
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