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WSJT-X/widgets/displaytext.cpp

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#include "displaytext.h"
#include <vector>
#include <algorithm>
#include <QMouseEvent>
#include <QDateTime>
#include <QTextCharFormat>
#include <QTextCursor>
#include <QTextBlock>
#include <QMenu>
#include <QAction>
#include <QListIterator>
#include <QRegularExpression>
#include <QScrollBar>
#include "Configuration.hpp"
#include "Decoder/decodedtext.h"
#include "Network/LotWUsers.hpp"
#include "models/DecodeHighlightingModel.hpp"
#include "logbook/logbook.h"
#include "qt_helpers.hpp"
#include "moc_displaytext.cpp"
DisplayText::DisplayText(QWidget *parent)
: QTextEdit(parent)
, m_config {nullptr}
, erase_action_ {new QAction {tr ("&Erase"), this}}
, high_volume_ {false}
, modified_vertical_scrollbar_max_ {-1}
{
setReadOnly (true);
setUndoRedoEnabled (false);
viewport ()->setCursor (Qt::ArrowCursor);
setWordWrapMode (QTextOption::NoWrap);
// max lines to limit heap usage
document ()->setMaximumBlockCount (5000);
// context menu erase action
setContextMenuPolicy (Qt::CustomContextMenu);
connect (this, &DisplayText::customContextMenuRequested, [this] (QPoint const& position) {
auto * menu = createStandardContextMenu (position);
menu->addAction (erase_action_);
menu->exec (mapToGlobal (position));
delete menu;
});
connect (erase_action_, &QAction::triggered, this, &DisplayText::erase);
}
void DisplayText::erase ()
{
clear ();
Q_EMIT erased ();
}
void DisplayText::setContentFont(QFont const& font)
{
char_font_ = font;
selectAll ();
auto cursor = textCursor ();
cursor.beginEditBlock ();
auto char_format = cursor.charFormat ();
char_format.setFont (char_font_);
cursor.mergeCharFormat (char_format);
cursor.clearSelection ();
cursor.movePosition (QTextCursor::End);
// position so viewport scrolled to left
cursor.movePosition (QTextCursor::Up);
cursor.movePosition (QTextCursor::StartOfLine);
cursor.endEditBlock ();
if (!high_volume_ || !m_config || !m_config->decodes_from_top ())
{
setTextCursor (cursor);
ensureCursorVisible ();
}
}
void DisplayText::mouseDoubleClickEvent(QMouseEvent *e)
{
Q_EMIT selectCallsign(e->modifiers ());
}
void DisplayText::insertLineSpacer(QString const& line)
{
appendText (line, "#d3d3d3");
}
namespace
{
using Highlight = DecodeHighlightingModel::Highlight;
using highlight_types = std::vector<Highlight>;
Highlight set_colours (Configuration const * config, QColor * bg, QColor * fg, highlight_types const& types)
{
Highlight result = Highlight::CQ;
if (config)
{
QListIterator<DecodeHighlightingModel::HighlightInfo> it {config->decode_highlighting ().items ()};
// iterate in reverse to honor priorities
it.toBack ();
while (it.hasPrevious ())
{
auto const& item = it.previous ();
auto const& type = std::find (types.begin (), types.end (), item.type_);
if (type != types.end () && item.enabled_)
{
if (item.background_.style () != Qt::NoBrush)
{
*bg = item.background_.color ();
}
if (item.foreground_.style () != Qt::NoBrush)
{
*fg = item.foreground_.color ();
}
result = item.type_;
}
}
}
return result; // highest priority enabled highlighting
}
}
void DisplayText::appendText(QString const& text, QColor bg, QColor fg
, QString const& call1, QString const& call2)
{
auto cursor = textCursor ();
cursor.movePosition (QTextCursor::End);
auto block_format = cursor.blockFormat ();
auto format = cursor.blockCharFormat ();
format.setFont (char_font_);
block_format.clearBackground ();
if (bg.isValid ())
{
block_format.setBackground (bg);
}
format.clearForeground ();
if (fg.isValid ())
{
format.setForeground (fg);
}
if (cursor.position ())
{
cursor.insertBlock (block_format, format);
}
else
{
cursor.setBlockFormat (block_format);
cursor.setBlockCharFormat (format);
}
int text_index {0};
auto temp_format = format;
if (call1.size ())
{
auto call_index = text.indexOf (call1);
if (call_index != -1) // sanity check
{
auto pos = highlighted_calls_.find (call1);
if (pos != highlighted_calls_.end ())
{
cursor.insertText(text.left (call_index));
if (pos.value ().first.isValid ())
{
temp_format.setBackground (pos.value ().first);
}
if (pos.value ().second.isValid ())
{
temp_format.setForeground (pos.value ().second);
}
cursor.insertText(text.mid (call_index, call1.size ()), temp_format);
text_index = call_index + call1.size ();
}
}
}
if (call2.size ())
{
auto call_index = text.indexOf (call2, text_index);
if (call_index != -1) // sanity check
{
auto pos = highlighted_calls_.find (call2);
if (pos != highlighted_calls_.end ())
{
temp_format = format;
cursor.insertText(text.mid (text_index, call_index - text_index), format);
if (pos.value ().second.isValid ())
{
temp_format.setBackground (pos.value ().first);
}
if (pos.value ().second.isValid ())
{
temp_format.setForeground (pos.value ().second);
}
cursor.insertText(text.mid (call_index, call2.size ()), temp_format);
text_index = call_index + call2.size ();
}
}
}
cursor.insertText(text.mid (text_index), format);
// position so viewport scrolled to left
cursor.movePosition (QTextCursor::StartOfLine);
if (!high_volume_ || !m_config || !m_config->decodes_from_top ())
{
setTextCursor (cursor);
ensureCursorVisible ();
}
document ()->setMaximumBlockCount (document ()->maximumBlockCount ());
}
void DisplayText::extend_vertical_scrollbar (int min, int max)
{
if (high_volume_
&& m_config && m_config->decodes_from_top ())
{
if (max && max != modified_vertical_scrollbar_max_)
{
auto vp_margins = viewportMargins ();
// add enough to vertical scroll bar range to allow last
// decode to just scroll of the top of the view port
max += viewport ()->height () - vp_margins.top () - vp_margins.bottom ();
modified_vertical_scrollbar_max_ = max;
}
verticalScrollBar ()->setRange (min, max);
}
}
void DisplayText::new_period ()
{
extend_vertical_scrollbar (verticalScrollBar ()->minimum (), verticalScrollBar ()->maximum ());
if (high_volume_ && m_config && m_config->decodes_from_top () && !vertical_scroll_connection_)
{
vertical_scroll_connection_ = connect (verticalScrollBar (), &QScrollBar::rangeChanged
, [this] (int min, int max) {
extend_vertical_scrollbar (min, max );
});
}
verticalScrollBar ()->setSliderPosition (verticalScrollBar ()->maximum ());
}
QString DisplayText::appendWorkedB4 (QString message, QString call, QString const& grid,
QColor * bg, QColor * fg, LogBook const& logBook,
QString const& currentBand, QString const& currentMode,
QString extra)
{
QString countryName;
bool callB4;
bool callB4onBand;
bool countryB4;
bool countryB4onBand;
bool gridB4;
bool gridB4onBand;
bool continentB4;
bool continentB4onBand;
bool CQZoneB4;
bool CQZoneB4onBand;
bool ITUZoneB4;
bool ITUZoneB4onBand;
if(call.length()==2) {
int i0=message.indexOf("CQ "+call);
call=message.mid(i0+6,-1);
i0=call.indexOf(" ");
call=call.mid(0,i0);
}
if(call.length()<3) return message;
if(!call.contains(QRegExp("[0-9]|[A-Z]"))) return message;
auto const& looked_up = logBook.countries ()->lookup (call);
logBook.match (call, currentMode, grid, looked_up, callB4, countryB4, gridB4, continentB4, CQZoneB4, ITUZoneB4);
logBook.match (call, currentMode, grid, looked_up, callB4onBand, countryB4onBand, gridB4onBand,
continentB4onBand, CQZoneB4onBand, ITUZoneB4onBand, currentBand);
if(grid=="") {
gridB4=true;
gridB4onBand=true;
}
message = message.trimmed ();
highlight_types types;
// no shortcuts here as some types may be disabled
if (!countryB4) {
types.push_back (Highlight::DXCC);
}
if(!countryB4onBand) {
types.push_back (Highlight::DXCCBand);
}
if(!gridB4) {
types.push_back (Highlight::Grid);
}
if(!gridB4onBand) {
types.push_back (Highlight::GridBand);
}
if (!callB4) {
types.push_back (Highlight::Call);
}
if(!callB4onBand) {
types.push_back (Highlight::CallBand);
}
if (!continentB4) {
types.push_back (Highlight::Continent);
}
if(!continentB4onBand) {
types.push_back (Highlight::ContinentBand);
}
if (!CQZoneB4) {
types.push_back (Highlight::CQZone);
}
if(!CQZoneB4onBand) {
types.push_back (Highlight::CQZoneBand);
}
if (!ITUZoneB4) {
types.push_back (Highlight::ITUZone);
}
if(!ITUZoneB4onBand) {
types.push_back (Highlight::ITUZoneBand);
}
if (m_config && m_config->lotw_users ().user (call))
{
types.push_back (Highlight::LotW);
}
types.push_back (Highlight::CQ);
auto top_highlight = set_colours (m_config, bg, fg, types);
switch (top_highlight)
{
case Highlight::Continent:
case Highlight::ContinentBand:
extra += AD1CCty::continent (looked_up.continent);
break;
case Highlight::CQZone:
case Highlight::CQZoneBand:
extra += QString {"CQ Zone %1"}.arg (looked_up.CQ_zone);
break;
case Highlight::ITUZone:
case Highlight::ITUZoneBand:
extra += QString {"ITU Zone %1"}.arg (looked_up.ITU_zone);
break;
default:
if (m_bPrincipalPrefix)
{
extra += looked_up.primary_prefix;
}
else
{
auto countryName = looked_up.entity_name;
// do some obvious abbreviations
countryName.replace ("Islands", "Is.");
countryName.replace ("Island", "Is.");
countryName.replace ("North ", "N. ");
countryName.replace ("Northern ", "N. ");
countryName.replace ("South ", "S. ");
countryName.replace ("East ", "E. ");
countryName.replace ("Eastern ", "E. ");
countryName.replace ("West ", "W. ");
countryName.replace ("Western ", "W. ");
countryName.replace ("Central ", "C. ");
countryName.replace (" and ", " & ");
countryName.replace ("Republic", "Rep.");
countryName.replace ("United States", "U.S.A.");
countryName.replace ("Fed. Rep. of ", "");
countryName.replace ("French ", "Fr.");
countryName.replace ("Asiatic", "AS");
countryName.replace ("European", "EU");
countryName.replace ("African", "AF");
extra += countryName;
}
}
m_CQPriority=DecodeHighlightingModel::highlight_name(top_highlight);
return leftJustifyAppendage (message, extra);
}
QString DisplayText::leftJustifyAppendage (QString message, QString const& appendage) const
{
if (appendage.size ())
{
// allow for seconds
int padding {message.indexOf (" ") > 4 ? 2 : 0};
// use a nbsp to save the start of appended text so we can find
// it again later, align appended data at a fixed column if
// there is space otherwise let it float to the right
int space_count {40 + padding - message.size ()};
if (space_count > 0) {
message += QString {space_count, QChar {' '}};
}
message += QChar::Nbsp + appendage;
}
return message;
}
void DisplayText::displayDecodedText(DecodedText const& decodedText, QString const& myCall,
QString const& mode,
bool displayDXCCEntity, LogBook const& logBook,
QString const& currentBand, bool ppfx, bool bCQonly,
bool haveFSpread, float fSpread)
{
m_bPrincipalPrefix=ppfx;
QColor bg;
QColor fg;
bool CQcall = false;
if (decodedText.string ().contains (" CQ ")
|| decodedText.string ().contains (" CQDX ")
|| decodedText.string ().contains (" QRZ "))
{
CQcall = true;
}
else
{
if (bCQonly) return;
if (myCall != "" && (decodedText.indexOf (" " + myCall + " ") >= 0
or decodedText.indexOf (" " + myCall + "/") >= 0
or decodedText.indexOf ("<" + myCall + "/") >= 0
or decodedText.indexOf ("/" + myCall + " ") >= 0
or decodedText.indexOf ("/" + myCall + ">") >= 0
or decodedText.indexOf ("<" + myCall + " ") >= 0
or decodedText.indexOf ("<" + myCall + ">") >= 0
or decodedText.indexOf (" " + myCall + ">") >= 0)) {
highlight_types types {Highlight::MyCall};
set_colours (m_config, &bg, &fg, types);
}
}
auto message = decodedText.string();
QString dxCall;
QString dxGrid;
decodedText.deCallAndGrid (/*out*/ dxCall, dxGrid);
QRegularExpression grid_regexp {"\\A(?![Rr]{2}73)[A-Ra-r]{2}[0-9]{2}([A-Xa-x]{2}){0,1}\\z"};
if(!dxGrid.contains(grid_regexp)) dxGrid="";
message = message.left (message.indexOf (QChar::Nbsp)).trimmed (); // strip appended info
QString extra;
if (haveFSpread)
{
extra += QString {"%1"}.arg (fSpread, 5, 'f', fSpread < 0.95 ? 3 : 2) + QChar {' '};
}
auto ap_pos = message.lastIndexOf (QRegularExpression {R"((?:\?\s)?(?:a[0-9]|q[0-9][0-9*]?)$)"});
if (ap_pos >= 0)
{
extra += message.mid (ap_pos) + QChar {' '};
message = message.left (ap_pos).trimmed ();
}
m_CQPriority="";
if (CQcall)
{
if (displayDXCCEntity)
{
// if enabled add the DXCC entity and B4 status to the end of the
// preformated text line t1
auto currentMode = mode;
if ("JT9+JT65" == mode)
{
currentMode = decodedText.isJT65 () ? "JT65" : "JT9";
}
message = appendWorkedB4 (message, decodedText.CQersCall(), dxGrid, &bg, &fg
, logBook, currentBand, currentMode, extra);
}
else
{
message = leftJustifyAppendage (message, extra);
highlight_types types {Highlight::CQ};
if (m_config && m_config->lotw_users ().user (decodedText.CQersCall()))
{
types.push_back (Highlight::LotW);
}
set_colours (m_config, &bg, &fg, types);
}
}
else
{
message = leftJustifyAppendage (message, extra);
}
appendText (message.trimmed (), bg, fg, decodedText.call (), dxCall);
}
void DisplayText::displayTransmittedText(QString text, QString modeTx, qint32 txFreq,
bool bFastMode, double TRperiod)
{
QString t1=" @ ";
if(modeTx=="FT4") t1=" + ";
if(modeTx=="FT8") t1=" ~ ";
if(modeTx=="JT4") t1=" $ ";
if(modeTx=="Q65") t1=" : ";
if(modeTx=="JT65") t1=" # ";
if(modeTx=="MSK144") t1=" & ";
if(modeTx=="FST4") t1=" ` ";
QString t2;
t2 = t2.asprintf("%4d",txFreq);
QString t;
if(bFastMode or modeTx=="FT8" or modeTx=="FT4" or (TRperiod<60)) {
t = QDateTime::currentDateTimeUtc().toString("hhmmss") + \
" Tx " + t2 + t1 + text;
} else if(modeTx.mid(0,6)=="FT8fox") {
t = QDateTime::currentDateTimeUtc().toString("hhmmss") + \
" Tx" + modeTx.mid(7) + " " + text;
} else {
t = QDateTime::currentDateTimeUtc().toString("hhmm") + \
" Tx " + t2 + t1 + text;
}
QColor bg;
QColor fg;
highlight_types types {Highlight::Tx};
set_colours (m_config, &bg, &fg, types);
appendText (t, bg, fg);
}
void DisplayText::displayQSY(QString text)
{
QString t = QDateTime::currentDateTimeUtc().toString("hhmmss") + " " + text;
appendText (t, "hotpink");
}
void DisplayText::displayFoxToBeCalled(QString t, QColor bg, QColor fg)
{
appendText (t, bg, fg);
}
namespace
{
void update_selection (QTextCursor& cursor, QColor const& bg, QColor const& fg)
{
QTextCharFormat format {cursor.charFormat ()};
if (bg.isValid ())
{
format.setBackground (bg);
}
else
{
format.clearBackground ();
}
if (fg.isValid ())
{
format.setForeground (fg);
}
else
{
format.clearForeground ();
}
cursor.mergeCharFormat (format);
}
void reset_selection (QTextCursor& cursor)
{
// restore previous text format, we rely on the text
// char format at he start of the selection being the
// old one which should be the case
auto c2 = cursor;
c2.setPosition (c2.selectionStart ());
cursor.setCharFormat (c2.charFormat ());
}
}
namespace
{
QString get_timestamp (QTextCursor& cursor)
{
QString timestamp;
if (cursor.movePosition (QTextCursor::PreviousCharacter)
&& cursor.movePosition (QTextCursor::StartOfLine)
&& cursor.movePosition (QTextCursor::EndOfWord, QTextCursor::KeepAnchor)
&& cursor.hasSelection ())
{
timestamp = cursor.selectedText ();
cursor.movePosition (QTextCursor::StartOfLine);
}
return timestamp;
}
}
void DisplayText::highlight_callsign (QString const& callsign, QColor const& bg,
QColor const& fg, bool last_period_only)
{
if (!callsign.size ())
{
return;
}
auto regexp = callsign;
// allow for hashed callsigns and escape any regexp metacharacters
QRegularExpression target {QString {"<?"}
+ regexp.replace (QLatin1Char {'+'}, QLatin1String {"\\+"})
.replace (QLatin1Char {'.'}, QLatin1String {"\\."})
.replace (QLatin1Char {'?'}, QLatin1String {"\\?"})
+ QString {">?"}
, QRegularExpression::DontCaptureOption};
QTextCharFormat old_format {currentCharFormat ()};
QTextCursor cursor {document ()};
if (last_period_only)
{
// highlight each instance of the given callsign (word) in the
// current period
cursor.movePosition (QTextCursor::End);
QTextCursor period_start {cursor};
QTextCursor prior {cursor};
auto period_timestamp = get_timestamp (period_start);
while (period_timestamp.size () && period_timestamp == get_timestamp (prior))
{
period_start = prior;
}
cursor = period_start;
while (!cursor.isNull ())
{
cursor = document ()->find (target, cursor, QTextDocument::FindWholeWords);
if (!cursor.isNull () && cursor.hasSelection ())
{
if (bg.isValid () || fg.isValid ())
{
update_selection (cursor, bg, fg);
}
else
{
reset_selection (cursor);
}
}
}
}
else
{
auto pos = highlighted_calls_.find (callsign);
if (bg.isValid () || fg.isValid ())
{
auto colours = qMakePair (bg, fg);
if (pos == highlighted_calls_.end ())
{
pos = highlighted_calls_.insert (callsign.toUpper (), colours);
}
else
{
pos.value () = colours; // update colours
}
while (!cursor.isNull ())
{
cursor = document ()->find (target, cursor, QTextDocument::FindWholeWords);
if (!cursor.isNull () && cursor.hasSelection ())
{
update_selection (cursor, bg, fg);
}
}
}
else
{
if (pos != highlighted_calls_.end ())
{
highlighted_calls_.erase (pos);
}
QTextCursor cursor {document ()};
while (!cursor.isNull ())
{
cursor = document ()->find (target, cursor, QTextDocument::FindWholeWords);
if (!cursor.isNull () && cursor.hasSelection ())
{
reset_selection (cursor);
}
}
}
}
setCurrentCharFormat (old_format);
}
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