mirror of
https://github.com/linuxdeepin/dde-dock.git
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7c3db6c9be
1、滚动条样式和设计图保持一致 2、滚动条右侧的图标增加阴影 Log: Influence: 滚动条-快捷设置面板 Task: https://pms.uniontech.com/task-view-110309.html Change-Id: I3b4680c94efeb433d22cd3a1ab5d5745d456c3aa
120 lines
4.3 KiB
C++
120 lines
4.3 KiB
C++
/*
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* Copyright (C) 2011 ~ 2018 Deepin Technology Co., Ltd.
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*
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* Author: sbw <sbw@sbw.so>
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*
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* Maintainer: sbw <sbw@sbw.so>
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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 of the License, or
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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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#include "imageutil.h"
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#include <QIcon>
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#include <QPainter>
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#include <QCursor>
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#include <QGSettings>
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#include <QDebug>
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#include <QPainterPath>
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#include <QRegion>
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#include <QBitmap>
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#include <X11/Xcursor/Xcursor.h>
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const QPixmap ImageUtil::loadSvg(const QString &iconName, const QString &localPath, const int size, const qreal ratio)
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{
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QIcon icon = QIcon::fromTheme(iconName);
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if (!icon.isNull()) {
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QPixmap pixmap = icon.pixmap(int(size * ratio), int(size * ratio));
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pixmap.setDevicePixelRatio(ratio);
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return pixmap;
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}
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QPixmap pixmap(int(size * ratio), int(size * ratio));
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QString localIcon = QString("%1%2%3").arg(localPath).arg(iconName).arg(iconName.contains(".svg") ? "" : ".svg");
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QSvgRenderer renderer(localIcon);
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pixmap.fill(Qt::transparent);
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QPainter painter;
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painter.begin(&pixmap);
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renderer.render(&painter);
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painter.end();
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pixmap.setDevicePixelRatio(ratio);
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return pixmap;
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}
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const QPixmap ImageUtil::loadSvg(const QString &iconName, const QSize size, const qreal ratio)
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{
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QIcon icon = QIcon::fromTheme(iconName);
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if (!icon.isNull()) {
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QPixmap pixmap = icon.pixmap(size*ratio);
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pixmap.setDevicePixelRatio(ratio);
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return pixmap;
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}
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return QPixmap();
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}
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QCursor* ImageUtil::loadQCursorFromX11Cursor(const char* theme, const char* cursorName, int cursorSize)
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{
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if (!theme || !cursorName || cursorSize <= 0)
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return nullptr;
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XcursorImages *images = XcursorLibraryLoadImages(cursorName, theme, cursorSize);
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if (!images || !(images->images[0])) {
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qWarning() << "loadCursorFalied, theme =" << theme << ", cursorName=" << cursorName;
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return nullptr;
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}
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const int imgW = images->images[0]->width;
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const int imgH = images->images[0]->height;
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QImage img((const uchar*)images->images[0]->pixels, imgW, imgH, QImage::Format_ARGB32);
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QPixmap pixmap = QPixmap::fromImage(img);
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QCursor *cursor = new QCursor(pixmap, images->images[0]->xhot, images->images[0]->yhot);
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XcursorImagesDestroy(images);
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return cursor;
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}
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const QPixmap ImageUtil::getShadowPixmap(const QPixmap &pixmap, const QColor &shadowColor, const QSize &backSize)
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{
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// 新建一个bitmap作为遮罩，尺寸为外部指定(backSize)
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QBitmap bitmap(backSize);
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QPainter painter(&bitmap);
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painter.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
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painter.setPen(Qt::NoPen);
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// 往bitmap上绘制圆形区域
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QRect rectBackground(0, 0, backSize.width(), backSize.height());
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painter.fillRect(rectBackground, Qt::white);
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painter.setBrush(Qt::black);
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painter.drawEllipse(0, 0, backSize.width(), backSize.height());
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// 新建QPixmap，将上述新建的Bitmap作为它的遮罩
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QPixmap newPixmap(backSize);
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newPixmap.setMask(bitmap);
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QPainter pixPainter(&newPixmap);
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pixPainter.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
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const QSize iconSize = pixmap.size();
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int startX = (backSize.width() - iconSize.width()) / 2;
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int startY = (backSize.height() - iconSize.height()) / 2;
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// 将传入参数的背景尺寸(backSize)作为背景，通过画笔路径在上面绘制圆形区域
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QRect rectPixmap(startX, startY, iconSize.width(), iconSize.height());
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QPainterPath path;
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path.addEllipse(rectBackground);
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pixPainter.fillPath(path, shadowColor);
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// 将图像绘制到新建的QPixmap的背景区域，并返回新的QPixmap
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pixPainter.drawPixmap(rectPixmap, pixmap);
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pixPainter.setPen(shadowColor);
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pixPainter.drawEllipse(rectBackground);
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return newPixmap;
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}
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