111 lines
3.2 KiB
C++
111 lines
3.2 KiB
C++
/*
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* Copyright (C) 2019 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 <QMimeType>
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#include <QSettings>
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#include <QMimeDatabase>
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#include <QPainter>
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#include <QPainterPath>
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#include <QFileInfo>
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#include <QFontMetrics>
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#include "commonfunc.h"
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bool ispicture(QString filepath)
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{
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QFileInfo file(filepath);
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if(file.exists() == false)
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return false;
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QMimeDatabase db;
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QMimeType mime = db.mimeTypeForFile(filepath);
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return mime.name().startsWith("image/");
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}
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QString getSystemVersion()
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{
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QSettings settings("/etc/lsb-release", QSettings::IniFormat);
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QString release = settings.value("DISTRIB_RELEASE").toString();
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QString description = settings.value("DISTRIB_DESCRIPTION").toString();
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if(description.right(3) == "LTS")
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release = release + " LTS";
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return release;
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}
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QString getSystemDistrib()
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{
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QSettings settings("/etc/lsb-release", QSettings::IniFormat);
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QString distribId = settings.value("DISTRIB_ID").toString();
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return distribId;
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}
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bool getUseFirstDevice()
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{
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QSettings settings("/etc/biometric-auth/ukui-biometric.conf", QSettings::IniFormat);
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return settings.value("UseFirstDevice").toBool();
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}
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commonFunc::commonFunc()
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{
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}
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QString ElideText(QFont font,int width,QString strInfo)
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{
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QFontMetrics fontMetrics(font);
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//如果当前字体下，字符串长度大于指定宽度
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if(fontMetrics.width(strInfo) > width)
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{
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strInfo= QFontMetrics(font).elidedText(strInfo, Qt::ElideRight, width);
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}
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return strInfo;
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}
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/*修改图片缩放机制，图片长宽不一致时，先取图片中央的部分*/
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QPixmap scaledPixmap(QPixmap src)
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{
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QPixmap rectPixmap;
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if (src.width() > src.height()) {
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QPixmap iconPixmap = src.copy((src.width() - src.height())/2, 0, src.height(), src.height());
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// 根据label高度等比例缩放图片
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rectPixmap = iconPixmap.scaledToHeight(src.height());
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} else {
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QPixmap iconPixmap = src.copy(0, (src.height() - src.width())/2, src.width(), src.width());
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// 根据label宽度等比例缩放图片
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rectPixmap = iconPixmap.scaledToWidth(src.width());
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}
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return rectPixmap;
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}
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QPixmap PixmapToRound(const QPixmap &src, int radius)
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{
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if (src.isNull()) {
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return QPixmap();
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}
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QPixmap pixmapa(src);
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QPixmap pixmap(radius*2,radius*2);
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pixmap.fill(Qt::transparent);
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QPainter painter(&pixmap);
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painter.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
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QPainterPath path;
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path.addEllipse(0, 0, radius*2, radius*2);
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painter.setClipPath(path);
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painter.drawPixmap(0, 0, radius*2, radius*2, pixmapa);
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return pixmap;
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}
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