From 85254c8e294bdea8b9d0d17068dd5e0a6dd915e7 Mon Sep 17 00:00:00 2001 From: zhangshuoshuo <213891190@qq.com> Date: Wed, 8 Jan 2025 21:26:25 +0800 Subject: [PATCH] nodetreedelegate.cpp nodetreedelegate.h --- source/src/nodetreedelegate.cpp | 55 +++++++++++++++++---------------- source/src/nodetreedelegate.h | 48 +++++++++++++++++++++------- 2 files changed, 65 insertions(+), 38 deletions(-) diff --git a/source/src/nodetreedelegate.cpp b/source/src/nodetreedelegate.cpp index a099c3d..aa3e6ff 100644 --- a/source/src/nodetreedelegate.cpp +++ b/source/src/nodetreedelegate.cpp @@ -15,8 +15,9 @@ #include #include "fontloader.h" -NodeTreeDelegate::NodeTreeDelegate(QTreeView *view, QObject *parent, QListView *listView) +NodeTreeDelegate::NodeTreeDelegate(QTreeView *view, QObject *parent, QListView *listView)// 构造函数，初始化NodeTreeDelegate : QStyledItemDelegate{ parent }, +// 根据平台选择合适的字体 #ifdef __APPLE__ m_displayFont(QFont(QStringLiteral("SF Pro Text")).exactMatch() ? QStringLiteral("SF Pro Text") @@ -27,6 +28,7 @@ NodeTreeDelegate::NodeTreeDelegate(QTreeView *view, QObject *parent, QListView * #else m_displayFont(QStringLiteral("Roboto")), #endif +// 根据平台设置字体大小和样式 #ifdef __APPLE__ m_titleFont(m_displayFont, 13, QFont::DemiBold), m_titleSelectedFont(m_displayFont, 13), @@ -39,7 +41,7 @@ NodeTreeDelegate::NodeTreeDelegate(QTreeView *view, QObject *parent, QListView * m_dateFont(m_displayFont, 10), m_separatorFont(m_displayFont, 9, QFont::Normal), m_numberOfNotesFont(m_displayFont, 9, QFont::DemiBold), -#endif +#endif// 初始化颜色设置 m_titleColor(26, 26, 26), m_titleSelectedColor(255, 255, 255), m_dateColor(132, 132, 132), @@ -57,15 +59,15 @@ NodeTreeDelegate::NodeTreeDelegate(QTreeView *view, QObject *parent, QListView * m_view(view), m_listView(listView), m_theme(Theme::Light) -{ +{// 构造函数体为空 } - +// 设置主题 void NodeTreeDelegate::setTheme(Theme::Value theme) { - emit themeChanged(theme); - m_theme = theme; + emit themeChanged(theme); // 发出主题变化信号 + m_theme = theme; // 更新当前主题 switch (theme) { - case Theme::Light: { + case Theme::Light: {// 设置浅色主题的颜色 m_titleColor = QColor(26, 26, 26); m_dateColor = QColor(26, 26, 26); m_defaultColor = QColor(247, 247, 247); @@ -76,7 +78,7 @@ void NodeTreeDelegate::setTheme(Theme::Value theme) m_numberOfNotesColor = QColor(26, 26, 26, 127); break; } - case Theme::Dark: { + case Theme::Dark: {// 设置深色主题的颜色 m_titleColor = QColor(212, 212, 212); m_dateColor = QColor(212, 212, 212); m_defaultColor = QColor(25, 25, 25); @@ -87,7 +89,7 @@ void NodeTreeDelegate::setTheme(Theme::Value theme) m_numberOfNotesColor = QColor(212, 212, 212, 127); break; } - case Theme::Sepia: { + case Theme::Sepia: {// 设置棕褐色主题的颜色 m_titleColor = QColor(26, 26, 26); m_dateColor = QColor(26, 26, 26); m_defaultColor = QColor(251, 240, 217); @@ -100,27 +102,28 @@ void NodeTreeDelegate::setTheme(Theme::Value theme) } } } - +// 绘制函数 void NodeTreeDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const { - painter->setRenderHint(QPainter::Antialiasing); + painter->setRenderHint(QPainter::Antialiasing);// 开启抗锯齿 auto itemType = static_cast(index.data(NodeItem::Roles::ItemType).toInt()); - + // 根据平台设置图标字体大小偏移 #ifdef __APPLE__ int iconPointSizeOffset = 0; #else int iconPointSizeOffset = -4; #endif - painter->fillRect(option.rect, m_currentBackgroundColor); + painter->fillRect(option.rect, m_currentBackgroundColor);// 填充背景色 switch (itemType) { + // 绘制逻辑根据不同的项类型进行分支处理 case NodeItem::Type::RootItem: { break; } case NodeItem::Type::AllNoteButton: case NodeItem::Type::TrashButton: { - paintBackgroundSelectable(painter, option, index); + paintBackgroundSelectable(painter, option, index);// 绘制可选择背景 auto iconRect = QRect(option.rect.x() + 22, option.rect.y() + (option.rect.height() - 20) / 2, 18, 20); QFont previousPainterFont = painter->font(); @@ -276,7 +279,7 @@ void NodeTreeDelegate::paint(QPainter *painter, const QStyleOptionViewItem &opti break; } case NodeItem::Type::TagItem: { - paintBackgroundSelectable(painter, option, index); + paintBackgroundSelectable(painter, option, index);// 绘制可选择的背景 auto iconRect = QRect(option.rect.x() + 22, option.rect.y() + (option.rect.height() - 14) / 2, 16, 16); auto tagColor = index.data(NodeItem::Roles::TagColor).toString(); @@ -315,45 +318,45 @@ void NodeTreeDelegate::paint(QPainter *painter, const QStyleOptionViewItem &opti } } } - +// 绘制可选择的背景 void NodeTreeDelegate::paintBackgroundSelectable(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const { if ((option.state & QStyle::State_Selected) == QStyle::State_Selected) { - painter->fillRect(option.rect, QBrush(m_ActiveColor)); + painter->fillRect(option.rect, QBrush(m_ActiveColor));// 如果选中，填充活动颜色 } else if ((option.state & QStyle::State_MouseOver) == QStyle::State_MouseOver) { auto treeView = dynamic_cast(m_view); auto itemType = static_cast(index.data(NodeItem::Roles::ItemType).toInt()); if (itemType == NodeItem::Type::TrashButton) { - return; + return;// 垃圾桶按钮不绘制悬停背景 } if (!treeView->isDragging()) { - painter->fillRect(option.rect, QBrush(m_hoverColor)); + painter->fillRect(option.rect, QBrush(m_hoverColor));// 如果悬停，填充悬停颜色 } } } - +// 计算项的大小提示 QSize NodeTreeDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const { QSize result = QStyledItemDelegate::sizeHint(option, index); auto itemType = static_cast(index.data(NodeItem::Roles::ItemType).toInt()); if (itemType == NodeItem::Type::FolderSeparator) { - result.setHeight(NoteTreeConstant::folderLabelHeight); + result.setHeight(NoteTreeConstant::folderLabelHeight);// 文件夹分隔符的高度 } else if (itemType == NodeItem::Type::TagSeparator) { - result.setHeight(NoteTreeConstant::tagLabelHeight); + result.setHeight(NoteTreeConstant::tagLabelHeight);// 标签分隔符的高度 } else if (itemType == NodeItem::Type::FolderItem || itemType == NodeItem::Type::TrashButton || itemType == NodeItem::Type::AllNoteButton) { - result.setHeight(NoteTreeConstant::folderItemHeight); + result.setHeight(NoteTreeConstant::folderItemHeight);// 文件夹项、垃圾桶按钮、所有笔记按钮的高度 } else if (itemType == NodeItem::Type::TagItem) { - result.setHeight(NoteTreeConstant::tagItemHeight); + result.setHeight(NoteTreeConstant::tagItemHeight);// 标签项的高度 } else { result.setHeight(30); } return result; } - +// 创建编辑器 QWidget *NodeTreeDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const { @@ -445,7 +448,7 @@ QWidget *NodeTreeDelegate::createEditor(QWidget *parent, const QStyleOptionViewI } return nullptr; } - +// 更新编辑器的几何形状 void NodeTreeDelegate::updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const { diff --git a/source/src/nodetreedelegate.h b/source/src/nodetreedelegate.h index eafa30a..5f0127a 100644 --- a/source/src/nodetreedelegate.h +++ b/source/src/nodetreedelegate.h @@ -7,56 +7,80 @@ class QTreeView; class QListView; -class NodeTreeDelegate : public QStyledItemDelegate +class NodeTreeDelegate : public QStyledItemDelegate// NodeTreeDelegate 类继承自 QStyledItemDelegate { - Q_OBJECT -public: + Q_OBJECT// Qt 元对象宏，用于信号和槽机制 +public:// 构造函数，初始化 NodeTreeDelegate explicit NodeTreeDelegate(QTreeView *view, QObject *parent = nullptr, QListView *listView = nullptr); - void setTheme(Theme::Value theme); + void setTheme(Theme::Value theme);// 设置主题 signals: - void addFolderRequested(); - void addTagRequested(); - void themeChanged(Theme::Value theme); + void addFolderRequested();// 信号：请求添加文件夹 + void addTagRequested();// 信号：请求添加标签 + void themeChanged(Theme::Value theme);// 信号：主题变化 // QAbstractItemDelegate interface + // 实现 QAbstractItemDelegate 接口 public: - virtual void paint(QPainter *painter, const QStyleOptionViewItem &option, + virtual void paint(QPainter *painter, const QStyleOptionViewItem &option,// 绘制项 const QModelIndex &index) const override; - virtual QSize sizeHint(const QStyleOptionViewItem &option, + virtual QSize sizeHint(const QStyleOptionViewItem &option,// 计算项的大小提示 const QModelIndex &index) const override; virtual QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, - const QModelIndex &index) const override; + const QModelIndex &index) const override;// 创建编辑器 virtual void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, - const QModelIndex &index) const override; + const QModelIndex &index) const override;// 更新编辑器的几何形状 private: void paintBackgroundSelectable(QPainter *painter, const QStyleOptionViewItem &option, - const QModelIndex &index) const; + const QModelIndex &index) const;// 绘制可选择的背景 private: + // 显示字体名称 QString m_displayFont; + // 标题字体 QFont m_titleFont; + // 选中标题字体 QFont m_titleSelectedFont; + // 日期字体 QFont m_dateFont; + // 分隔符字体 QFont m_separatorFont; + // 笔记数量字体 QFont m_numberOfNotesFont; + // 标题颜色 QColor m_titleColor; + // 选中标题颜色 QColor m_titleSelectedColor; + // 日期颜色 QColor m_dateColor; + // 活动颜色 QColor m_ActiveColor; + // 非活动颜色 QColor m_notActiveColor; + // 悬停颜色 QColor m_hoverColor; + // 应用程序非活动颜色 QColor m_applicationInactiveColor; + // 分隔符颜色 QColor m_separatorColor; + // 默认颜色 QColor m_defaultColor; + // 分隔符文本颜色 QColor m_separatorTextColor; + // 当前背景颜色 QColor m_currentBackgroundColor; + // 笔记数量颜色 QColor m_numberOfNotesColor; + // 选中笔记数量颜色 QColor m_numberOfNotesSelectedColor; + // 文件夹图标颜色 QColor m_folderIconColor; + // 树视图指针 QTreeView *m_view; + // 列表视图指针 QListView *m_listView; + // 主题值 Theme::Value m_theme; };