retronetworking
/
yate
12
0
Fork 2
Code Issues Pull Requests Projects Releases Wiki Activity

Added search and highlight/restore found text feature to custom text widget. 

git-svn-id: http://yate.null.ro/svn/yate/trunk@3949 acf43c95-373e-0410-b603-e72c3f656dc1
This commit is contained in:
marian 2010-12-16 10:51:47 +00:00
parent c3154dff79
commit 6891ab17fd
2 changed files with 199 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

113
modules/qt4/customtext.cpp
View File

@ -176,11 +176,13 @@ int CustomTextFormat::insertText(QTextEdit* edit, const String& text, bool atSta
// Set text from value. Replace text parameters if not empty
void CustomTextFormat::buildText(String& text, const NamedList* params,
CustomTextEdit* owner)
CustomTextEdit* owner, bool lineBrBefore)
{
if (null())
return;
text = *this;
if (lineBrBefore)
text = ((type() == Html) ? "<br>" : "\r\n");
text << *this;
NamedList dummy("");
const NamedList* repl = &dummy;
if (params) {
@ -205,6 +207,27 @@ void CustomTextFormat::buildText(String& text, const NamedList* params,
}
/*
* TextFragmentList
*/
// Restore this list in the document
void TextFragmentList::restore(QTextDocument* doc)
{
if (doc) {
for (int i = 0; i < m_list.size(); i++) {
QTextCursor c(doc);
c.movePosition(QTextCursor::NextCharacter,QTextCursor::MoveAnchor,
m_list[i].m_docPos);
c.movePosition(QTextCursor::NextCharacter,QTextCursor::KeepAnchor,
m_list[i].toPlainText().length());
c.removeSelectedText();
c.insertHtml(m_list[i].toHtml());
}
}
m_list.clear();
};
/*
* CustomTextEdit
*/
@ -218,7 +241,8 @@ CustomTextEdit::CustomTextEdit(const char* name, const NamedList& params, QWidge
m_followUrl(true),
m_urlHandlers(""),
m_tempItemCount(0),
m_tempItemReplace(true)
m_tempItemReplace(true),
m_lastFoundPos(-1)
{
// Build properties
QtClient::buildProps(this,params["buildprops"]);
@ -228,6 +252,8 @@ CustomTextEdit::CustomTextEdit(const char* name, const NamedList& params, QWidge
m_edit->setOpenExternalLinks(false);
m_edit->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Expanding);
QtClient::setWidget(this,m_edit);
m_searchFoundFormat.setBackground(QBrush(QColor("darkgreen")));
m_searchFoundFormat.setForeground(QBrush(QColor("white")));
m_debug = params.getBoolValue("_yate_debug_widget");
if (m_debug) {
m_items.addParam(new CustomTextFormat(String(-1),"white")); // Output() or client set status
@ -253,6 +279,7 @@ bool CustomTextEdit::setParams(const NamedList& params)
{
static const String s_setRichItem = "set_richtext_item";
static const String s_setPlainItem = "set_plaintext_item";
static const String s_search = "search";
unsigned int n = params.length();
bool ok = true;
for (unsigned int i = 0; i < n; i++) {
@ -263,6 +290,8 @@ bool CustomTextEdit::setParams(const NamedList& params)
setItem(*ns,true);
else if (ns->name() == s_setPlainItem)
setItem(*ns,false);
else if (ns->name() == s_search)
ok = setSearchHighlight(ns->toBoolean(),YOBJECT(NamedList,ns)) && ok;
else {
// Prefixed parameters
String tmp(ns->name());
@ -324,7 +353,7 @@ bool CustomTextEdit::addLines(const NamedList& lines, unsigned int max, bool atS
last = crt;
if (last != &m_defItem) {
String tmp;
last->buildText(tmp,YOBJECT(NamedList,ns),this);
last->buildText(tmp,YOBJECT(NamedList,ns),this,!text.null());
text << tmp;
}
else
@ -416,6 +445,70 @@ void CustomTextEdit::setItem(const String& value, bool html)
m_items.clearParam(value.substr(0,pos));
}
// Set/reset text highlight
bool CustomTextEdit::setSearchHighlight(bool on, NamedList* params)
{
if (!on) {
m_lastFoundPos = -1;
if (params && params->getBoolValue("reset",true))
m_searchFound.restore(m_edit->document());
else
m_searchFound.m_list.clear();
return true;
}
if (!params)
return false;
QTextDocument* doc = m_edit->document();
if (!doc)
return false;
QString find = QtClient::setUtf8(params->getValue("find"));
if (!find.length())
return false;
Qt::CaseSensitivity cs = params->getBoolValue("matchcase") ?
Qt::CaseSensitive : Qt::CaseInsensitive;
bool found = false;
QString text = doc->toPlainText();
if (params->getBoolValue("all")) {
m_lastFoundPos = -1;
m_searchFound.restore(doc);
int pos = -1;
do {
pos = text.indexOf(find,pos + 1,cs);
if (pos >= 0)
handleFound(pos,find.length());
}
while (pos >= 0);
if (m_searchFound.m_list.size()) {
found = true;
ensureCharVisible(m_searchFound.m_list[0].m_docPos);
}
}
else {
if (params->getBoolValue("next"))
m_lastFoundPos = text.indexOf(find,m_lastFoundPos >= 0 ? m_lastFoundPos + 1 : 0,cs);
else if (m_lastFoundPos < 0)
m_lastFoundPos = text.lastIndexOf(find,-1,cs);
else if (m_lastFoundPos)
m_lastFoundPos = text.lastIndexOf(find,m_lastFoundPos - 1,cs);
if (m_lastFoundPos >= 0) {
found = true;
m_searchFound.restore(doc);
handleFound(m_lastFoundPos,find.length());
ensureCharVisible(m_lastFoundPos);
}
}
return found;
}
// Ensure the character at a given position is visible
void CustomTextEdit::ensureCharVisible(int pos)
{
QTextCursor show(m_edit->document());
show.movePosition(QTextCursor::NextCharacter,QTextCursor::MoveAnchor,pos);
m_edit->setTextCursor(show);
m_edit->ensureCursorVisible();
}
// Replace string sequences with formatted text
void CustomTextEdit::replace(String& text)
{
@ -508,6 +601,18 @@ void CustomTextEdit::urlTrigerred(const QUrl& url)
Client::self()->openUrl(tmp);
}
// Handle found item. Add data to found items. Set formatting
void CustomTextEdit::handleFound(int pos, int len)
{
QTextCursor c(m_edit->document());
c.movePosition(QTextCursor::NextCharacter,QTextCursor::MoveAnchor,pos);
c.movePosition(QTextCursor::NextCharacter,QTextCursor::KeepAnchor,len);
m_searchFound.add(c);
QString sel = c.selectedText();
c.removeSelectedText();
c.insertText(sel,m_searchFoundFormat);
}
/*
* CustomTextFactory

91
modules/qt4/customtext.h
View File

@ -32,6 +32,8 @@ namespace { // anonymous
class CustomTextFormat; // Custom QTextEdit format entry
class CustomTextEditUrl; // Custom text edit url
class TextFragment; // A formatted text document fragment
class TextFragmentList; // A text fragment container
class CustomTextEdit; // Custom QTextEdit
/**
@ -88,8 +90,10 @@ public:
* @param text Text buffer
* @param params Parameters to replace
* @param owner Text edit owner
* @param lineBrBefore True to append a libe break before it
*/
void buildText(String& text, const NamedList* params, CustomTextEdit* owner);
void buildText(String& text, const NamedList* params, CustomTextEdit* owner,
bool lineBrBefore);
private:
Type m_type;
@ -112,6 +116,66 @@ public:
String m_scheme;
};
/**
* This class keeps a formatted text document fragment along
* with document position
* @short A formatted text document fragment
*/
class TextFragment : public QTextDocumentFragment
{
public:
/**
* Constructor. Build a text fragment from a cursor's selection
* @param c The cursor
*/
inline TextFragment(const QTextCursor& c)
: QTextDocumentFragment(c),
m_docPos(c.selectionStart())
{}
/**
* Copy constructor
* @param other Source text fragment
*/
inline TextFragment(const TextFragment& other)
: QTextDocumentFragment(other), m_docPos(other.m_docPos)
{}
/**
* The position of this fragment in the document
*/
int m_docPos;
private:
TextFragment() {};
};
/**
* This class implements a TextFragment container
* @short A text fragment container
*/
class TextFragmentList
{
public:
/**
* Restore all fragments in the document. Clear the list
* @param doc The document
*/
void restore(QTextDocument* doc);
/**
* Build and append a text fragment from a cursor's selection
* @param c The cursor
*/
inline void add(QTextCursor& c)
{ m_list.append(TextFragment(c)); }
/**
* The fragments owned by this container
*/
QList<TextFragment> m_list;
};
/**
* This class holds custom text edit widget with abilities to add pre-formated
* parameterized text
@ -184,6 +248,20 @@ public:
*/
void setItem(const String& value, bool html);
/**
* Set/reset search text highlight
* @param on True to set, false to reset
* @param params Parameters. Ignored it reset
* @return True if reset or a match was found. False otherwise
*/
bool setSearchHighlight(bool on, NamedList* params);
/**
* Ensure the character at a given position is visible
* @param pos The position in the document
*/
void ensureCharVisible(int pos);
/**
* Replace string sequences with formatted text
* @param text Text buffer
@ -272,6 +350,13 @@ public slots:
void urlTrigerred(const QUrl& url);
protected:
/**
* Handle found item. Add data to found items. Set formatting
* @param pos The position in document
* @param len Found text length
*/
void handleFound(int pos, int len);
/**
* Retrieve a custom text format object
* @param name Item name
@ -291,6 +376,10 @@ protected:
int m_tempItemCount; // Temporary last item count
// negative: start, positive: end, 0: none
bool m_tempItemReplace; // Replace (delete) temporary item(s)
// Search
TextFragmentList m_searchFound; // Last found data: restore it on request
QTextCharFormat m_searchFoundFormat; // Found item(s) formatting
int m_lastFoundPos; // Last found position in document
};
}; // anonymous namespace