QPdfSearchModel 類

QPdfSearchModel 類搜索 PDF 文檔中的字符串並保持結果。 更多...

頭：	#include <QPdfSearchModel>
繼承：	QAbstractListModel

• 所有成員列錶，包括繼承成員

公共類型

枚舉類	角色 { Page, IndexOnPage, Location, ContextBefore, ContextAfter }

特性

• (從 6.8 起) count : const int
• document : QPdfDocument*
• searchString : QString

公共函數

	QPdfSearchModel (QObject * parent )
virtual	~QPdfSearchModel () override
int	count () const
QPdfDocument *	document () const
QPdfLink	resultAtIndex (int index ) const
QList<QPdfLink>	resultsOnPage (int page ) const
QString	searchString () const

重實現公共函數

virtual QVariant	data (const QModelIndex & index , int role ) const override
virtual QHash<int, QByteArray>	roleNames () const override
virtual int	rowCount (const QModelIndex & parent ) const override

公共槽

void	setDocument (QPdfDocument * document )
void	setSearchString (const QString & searchString )

信號

void	countChanged ()
void	documentChanged ()
void	searchStringChanged ()

詳細描述

This is used in the 模型/視圖編程 paradigm to display a list of search results, to highlight them on the rendered PDF pages, and to iterate through them using the "search forward" / "search backward" buttons and shortcuts that would be found in a typical document-viewing UI:

成員類型文檔編製

enum class QPdfSearchModel:: 角色

常量	值	描述
QPdfSearchModel::Role::Page	Qt::UserRole	The page number where the search result is found (int).
QPdfSearchModel::Role::IndexOnPage	257	The index of the search result on the page (int).
QPdfSearchModel::Role::Location	258	The position of the search result on the page ( QPointF ).
QPdfSearchModel::Role::ContextBefore	259	The adjacent text on the page, before the search string ( QString ).
QPdfSearchModel::Role::ContextAfter	260	The adjacent text on the page, after the search string ( QString ).

另請參閱 QPdfLink .

特性文檔編製

[read-only, since 6.8] count : const int

This property holds the number of search results found

該特性在 Qt 6.8 引入。

訪問函數：

int	count () const

通知程序信號：

void	countChanged ()

document : QPdfDocument *

此特性保持要搜索文檔

訪問函數：

QPdfDocument *	document () const
void	setDocument (QPdfDocument * document )

通知程序信號：

void	documentChanged ()

searchString : QString

This property holds the string to search for

訪問函數：

QString	searchString () const
void	setSearchString (const QString & searchString )

通知程序信號：

void	searchStringChanged ()

成員函數文檔編製

[explicit] QPdfSearchModel:: QPdfSearchModel ( QObject * parent )

Constructs a new search model with parent object parent .

[override virtual noexcept] QPdfSearchModel:: ~QPdfSearchModel ()

Destroys the model.

[override virtual] QVariant QPdfSearchModel:: data (const QModelIndex & index , int role ) const

重實現： QAbstractItemModel::data (const QModelIndex &index, int role) const.

QPdfLink QPdfSearchModel:: resultAtIndex ( int index ) const

Returns a result found by index 在 document , regardless of the page on which it was found. index must be less than rowCount .

QList < QPdfLink > QPdfSearchModel:: resultsOnPage ( int page ) const

Returns the list of all results found on the given page .

[override virtual] QHash < int , QByteArray > QPdfSearchModel:: roleNames () const

重實現： QAbstractItemModel::roleNames () const.

[override virtual] int QPdfSearchModel:: rowCount (const QModelIndex & parent ) const

重實現： QAbstractItemModel::rowCount (const QModelIndex &parent) const.

The number of rows in the model is equal to the number of search results found.

內容

1. 公共類型

2. 特性

3. 公共函數

4. 重實現公共函數

5. 公共槽

6. 信號

7. 詳細描述