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kylin-music
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kylin-music/UI/search/musicsearchlistdelegate.cpp

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/*
* Copyright (C) 2020 ~ 2021 Uniontech Software Technology Co., Ltd.
*
* Author: ZouYa <zouya@uniontech.com>
*
* Maintainer: WangYu <wangyu@uniontech.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "musicsearchlistdelegate.h"
#include "musicsearchlistview.h"
#include <QDebug>
#include <QPainter>
#include <QPainterPath>
#include <QTextDocument>
#include <QStyleOptionViewItem>
#include <QTextCursor>
#include <QTextBlock>
#include <QAbstractTextDocumentLayout>
#include <QApplication>
#include "UI/base/widgetstyle.h"
QT_BEGIN_NAMESPACE
extern Q_WIDGETS_EXPORT void qt_blurImage(QPainter *p, QImage &blurImage, qreal radius, bool quality, bool alphaOnly, int transposed = 0);
QT_END_NAMESPACE
MusicSearchListDelegate::MusicSearchListDelegate(QWidget *parent)
: QStyledItemDelegate(parent)
{
}
MusicSearchListDelegate::~MusicSearchListDelegate()
{
}
void MusicSearchListDelegate::initStyleOption(QStyleOptionViewItem *option, const QModelIndex &index) const
{
QStyledItemDelegate::initStyleOption(option, index);
}
bool MusicSearchListDelegate::editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option, const QModelIndex &index)
{
Q_UNUSED(event)
Q_UNUSED(model)
Q_UNUSED(option)
Q_UNUSED(index)
return true;
}
void MusicSearchListDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
//获取当前行信息
const MusicSearchListview *listview = qobject_cast<const MusicSearchListview *>(option.widget);
QString searchText = listview->getSearchText();
QColor textColor;
QColor lightColor;
if (WidgetStyle::themeColor == 1) {
textColor = QColor("#FFFFFF");
} else if (WidgetStyle::themeColor == 0) {
textColor = QColor("#000000");
}
QPalette pa = option.palette;
QBrush selectBrush = pa.brush(QPalette::Active, QPalette::Highlight);
QColor selectColor = selectBrush.color();
lightColor = selectColor;
painter->setRenderHint(QPainter::Antialiasing);
painter->setRenderHint(QPainter::HighQualityAntialiasing);
// QFont fontT6;
// fontT6.setPixelSize(14);
// 通过字体宽度来对齐左右间隔
int allFontWidth = 232 - 28 -28;
if (listview->getSearchType() == SearchType::TitleType) {
// 绘制歌曲
musicDataStruct metaPtr = index.data(Qt::UserRole + SearchType::TitleType).value<musicDataStruct>();
QString mtext;
mtext = metaPtr.title + "-" + metaPtr.singer;
QFontMetricsF fontWidth(listview->font());
mtext = fontWidth.elidedText(mtext, Qt::ElideRight, allFontWidth);
QStyleOptionViewItem viewOption(option);
initStyleOption(&viewOption, index);
if (option.state.testFlag(QStyle::State_HasFocus))
viewOption.state = viewOption.state ^ QStyle::State_HasFocus;
QStyle *pStyle = viewOption.widget ? viewOption.widget->style() : QApplication::style();
viewOption.text = "";
pStyle->drawControl(QStyle::CE_ItemViewItem, &viewOption, painter, viewOption.widget);
QTextDocument document;
// 设置文字边距，保证绘制文字居中
document.setDocumentMargin(0);
document.setPlainText(mtext);
bool found = false;
QTextCursor highlight_cursor(&document);
QTextCursor cursor(&document);
cursor.beginEditBlock();
QTextCharFormat color_format(highlight_cursor.charFormat());
color_format.setForeground(lightColor);
// 搜索字体高亮
QTextCursor testcursor(&document);
testcursor.select(QTextCursor::LineUnderCursor);
QTextCharFormat fmt;
fmt.setForeground(textColor);
fmt.setFont(listview->font());
testcursor.mergeCharFormat(fmt);
testcursor.clearSelection();
testcursor.movePosition(QTextCursor::EndOfLine);
while (!highlight_cursor.isNull() && !highlight_cursor.atEnd()) {
highlight_cursor = document.find(searchText, highlight_cursor);
if (!highlight_cursor.isNull()) {
if (!found) {
found = true;
}
highlight_cursor.mergeCharFormat(color_format);
}
}
cursor.endEditBlock();
QAbstractTextDocumentLayout::PaintContext paintContext;
int margin = static_cast<int>(((option.rect.height() - fontWidth.height()) / 2));
// QRect textRect(0+28, option.rect.y() + margin, 287, option.rect.height());
// 0+28 为左缩进28px
QRect textRect(0+28, option.rect.y() + margin, allFontWidth, option.rect.height());
painter->save();
painter->translate(textRect.topLeft());
painter->setClipRect(textRect.translated(-textRect.topLeft()));
document.documentLayout()->draw(painter, paintContext);
painter->restore();
} else if (listview->getSearchType() == SearchType::SingerType) {
// 绘制歌曲
musicDataStruct metaPtr = index.data(Qt::UserRole + SearchType::SingerType).value<musicDataStruct>();
QString mtext;
mtext = metaPtr.title + "-" + metaPtr.singer;
QFontMetricsF fontWidth(listview->font());
mtext = fontWidth.elidedText(mtext, Qt::ElideRight, allFontWidth);
QStyleOptionViewItem viewOption(option);
initStyleOption(&viewOption, index);
if (option.state.testFlag(QStyle::State_HasFocus))
viewOption.state = viewOption.state ^ QStyle::State_HasFocus;
QStyle *pStyle = viewOption.widget ? viewOption.widget->style() : QApplication::style();
viewOption.text = "";
pStyle->drawControl(QStyle::CE_ItemViewItem, &viewOption, painter, viewOption.widget);
QTextDocument document;
// 设置文字边距，保证绘制文字居中
document.setDocumentMargin(0);
document.setPlainText(mtext);
bool found = false;
QTextCursor highlight_cursor(&document);
QTextCursor cursor(&document);
cursor.beginEditBlock();
QTextCharFormat color_format(highlight_cursor.charFormat());
color_format.setForeground(lightColor);
// 搜索字体高亮
QTextCursor testcursor(&document);
testcursor.select(QTextCursor::LineUnderCursor);
QTextCharFormat fmt;
fmt.setForeground(textColor);
fmt.setFont(listview->font());
testcursor.mergeCharFormat(fmt);
testcursor.clearSelection();
testcursor.movePosition(QTextCursor::EndOfLine);
while (!highlight_cursor.isNull() && !highlight_cursor.atEnd()) {
highlight_cursor = document.find(searchText, highlight_cursor);
if (!highlight_cursor.isNull()) {
if (!found)
found = true;
highlight_cursor.mergeCharFormat(color_format);
}
}
cursor.endEditBlock();
QAbstractTextDocumentLayout::PaintContext paintContext;
int margin = static_cast<int>(((option.rect.height() - fontWidth.height()) / 2));
QRect textRect(0+28, option.rect.y() + margin, allFontWidth, option.rect.height());
painter->save();
painter->translate(textRect.topLeft());
painter->setClipRect(textRect.translated(-textRect.topLeft()));
document.documentLayout()->draw(painter, paintContext);
painter->restore();
} else if (listview->getSearchType() == SearchType::AlbumType) {
// 绘制歌曲
musicDataStruct metaPtr = index.data(Qt::UserRole + SearchType::AlbumType).value<musicDataStruct>();
QString mtext;
mtext = metaPtr.album + "-" + metaPtr.singer;
QFontMetricsF fontWidth(listview->font());
mtext = fontWidth.elidedText(mtext, Qt::ElideRight, allFontWidth);
QStyleOptionViewItem viewOption(option);
initStyleOption(&viewOption, index);
if (option.state.testFlag(QStyle::State_HasFocus))
viewOption.state = viewOption.state ^ QStyle::State_HasFocus;
QStyle *pStyle = viewOption.widget ? viewOption.widget->style() : QApplication::style();
viewOption.text = "";
pStyle->drawControl(QStyle::CE_ItemViewItem, &viewOption, painter, viewOption.widget);
QTextDocument document;
// 设置文字边距，保证绘制文字居中
document.setDocumentMargin(0);
document.setPlainText(mtext);
bool found = false;
QTextCursor highlight_cursor(&document);
QTextCursor cursor(&document);
cursor.beginEditBlock();
QTextCharFormat color_format(highlight_cursor.charFormat());
color_format.setForeground(lightColor);
// 搜索字体高亮
QTextCursor testcursor(&document);
testcursor.select(QTextCursor::LineUnderCursor);
QTextCharFormat fmt;
fmt.setForeground(textColor);
fmt.setFont(listview->font());
testcursor.mergeCharFormat(fmt);
testcursor.clearSelection();
testcursor.movePosition(QTextCursor::EndOfLine);
while (!highlight_cursor.isNull() && !highlight_cursor.atEnd()) {
highlight_cursor = document.find(searchText, highlight_cursor);
if (!highlight_cursor.isNull()) {
if (!found)
found = true;
highlight_cursor.mergeCharFormat(color_format);
}
}
cursor.endEditBlock();
QAbstractTextDocumentLayout::PaintContext paintContext;
int margin = static_cast<int>(((option.rect.height() - fontWidth.height()) / 2));
QRect textRect(0+28, option.rect.y() + margin, allFontWidth, option.rect.height());
painter->save();
painter->translate(textRect.topLeft());
painter->setClipRect(textRect.translated(-textRect.topLeft()));
document.documentLayout()->draw(painter, paintContext);
painter->restore();
}
}
QSize MusicSearchListDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
{
Q_UNUSED(option)
Q_UNUSED(index)
return QSize(126, 36);
}
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