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#include "sqltextedit.h"
#include "PreferencesDialog.h"
#include "SqlUiLexer.h"
#include <QFile>
#include <QDropEvent>
#include <QUrl>
#include <QMimeData>
#include <cmath>
SqlUiLexer* SqlTextEdit::sqlLexer = 0;
SqlTextEdit::SqlTextEdit(QWidget* parent) :
QsciScintilla(parent)
{
// Create lexer object if not done yet
if(sqlLexer == 0)
sqlLexer = new SqlUiLexer(this);
// Set the lexer
setLexer(sqlLexer);
// Enable auto completion
setAutoCompletionThreshold(3);
setAutoCompletionCaseSensitivity(false);
setAutoCompletionShowSingle(true);
setAutoCompletionSource(QsciScintilla::AcsAPIs);
// Set icons for auto completion
registerImage(SqlUiLexer::ApiCompleterIconIdKeyword, QImage(":/icons/keyword"));
registerImage(SqlUiLexer::ApiCompleterIconIdFunction, QImage(":/icons/function"));
registerImage(SqlUiLexer::ApiCompleterIconIdTable, QImage(":/icons/table"));
registerImage(SqlUiLexer::ApiCompleterIconIdColumn, QImage(":/icons/field"));
// Enable UTF8
setUtf8(true);
// Enable brace matching
setBraceMatching(QsciScintilla::SloppyBraceMatch);
// Enable auto indentation
setAutoIndent(true);
// Enable folding
setFolding(QsciScintilla::BoxedTreeFoldStyle);
// Create error indicator
errorIndicatorNumber = indicatorDefine(QsciScintilla::SquiggleIndicator);
setIndicatorForegroundColor(Qt::red, errorIndicatorNumber);
// Do rest of initialisation
reloadSettings();
// Connect signals
connect(this, SIGNAL(linesChanged()), this, SLOT(updateLineNumberAreaWidth()));
}
SqlTextEdit::~SqlTextEdit()
{
}
void SqlTextEdit::updateLineNumberAreaWidth()
{
// Calculate number of digits of the current number of lines
int digits = std::floor(std::log10(lines())) + 1;
// Calculate the width of this number if it was all zeros (this is because a 1 might require less space than a 0 and this could
// cause some flickering depending on the font) and set the new margin width.
QFont font = lexer()->font(QsciLexerSQL::Default);
setMarginWidth(0, QFontMetrics(font).width(QString("0").repeated(digits)) + 5);
}
void SqlTextEdit::dropEvent(QDropEvent* e)
{
QList<QUrl> urls = e->mimeData()->urls();
if(urls.isEmpty())
return QsciScintilla::dropEvent(e);
QString file = urls.first().toLocalFile();
if(!QFile::exists(file))
return;
QFile f(file);
f.open(QIODevice::ReadOnly);
setText(f.readAll());
f.close();
}
void SqlTextEdit::setupSyntaxHighlightingFormat(const QString& settings_name, int style)
{
sqlLexer->setColor(QColor(PreferencesDialog::getSettingsValue("syntaxhighlighter", settings_name + "_colour").toString()), style);
QFont font(PreferencesDialog::getSettingsValue("editor", "font").toString());
font.setPointSize(PreferencesDialog::getSettingsValue("editor", "fontsize").toInt());
font.setBold(PreferencesDialog::getSettingsValue("syntaxhighlighter", settings_name + "_bold").toBool());
font.setItalic(PreferencesDialog::getSettingsValue("syntaxhighlighter", settings_name + "_italic").toBool());
font.setUnderline(PreferencesDialog::getSettingsValue("syntaxhighlighter", settings_name + "_underline").toBool());
sqlLexer->setFont(font, style);
}
void SqlTextEdit::reloadKeywords()
{
// Set lexer again to reload the updated keywords list
setLexer(lexer());
}
void SqlTextEdit::reloadSettings()
{
// Set syntax highlighting settings
QFont defaultfont(PreferencesDialog::getSettingsValue("editor", "font").toString());
defaultfont.setStyleHint(QFont::TypeWriter);
defaultfont.setPointSize(PreferencesDialog::getSettingsValue("editor", "fontsize").toInt());
sqlLexer->setColor(Qt::black, QsciLexerSQL::Default);
sqlLexer->setFont(defaultfont);
setupSyntaxHighlightingFormat("comment", QsciLexerSQL::Comment);
setupSyntaxHighlightingFormat("comment", QsciLexerSQL::CommentLine);
setupSyntaxHighlightingFormat("comment", QsciLexerSQL::CommentDoc);
setupSyntaxHighlightingFormat("keyword", QsciLexerSQL::Keyword);
setupSyntaxHighlightingFormat("table", QsciLexerSQL::KeywordSet6);
setupSyntaxHighlightingFormat("function", QsciLexerSQL::KeywordSet7);
setupSyntaxHighlightingFormat("string", QsciLexerSQL::DoubleQuotedString);
setupSyntaxHighlightingFormat("string", QsciLexerSQL::SingleQuotedString);
setupSyntaxHighlightingFormat("identifier", QsciLexerSQL::Identifier);
setupSyntaxHighlightingFormat("identifier", QsciLexerSQL::QuotedIdentifier);
// Set font
QFont font(PreferencesDialog::getSettingsValue("editor", "font").toString());
font.setStyleHint(QFont::TypeWriter);
font.setPointSize(PreferencesDialog::getSettingsValue("editor", "fontsize").toInt());
setFont(font);
// Show line numbers
QFont marginsfont(QFont(PreferencesDialog::getSettingsValue("editor", "font").toString()));
marginsfont.setPointSize(font.pointSize());
setMarginsFont(marginsfont);
setMarginLineNumbers(0, true);
setMarginsBackgroundColor(Qt::lightGray);
updateLineNumberAreaWidth();
// Highlight current line
setCaretLineVisible(true);
setCaretLineBackgroundColor(QColor(PreferencesDialog::getSettingsValue("syntaxhighlighter", "currentline_colour").toString()));
// Set tab width
setTabWidth(PreferencesDialog::getSettingsValue("editor", "tabsize").toInt());
// Check if error indicators are enabled and clear them if they just got disabled
showErrorIndicators = PreferencesDialog::getSettingsValue("editor", "error_indicators").toBool();
if(!showErrorIndicators)
clearErrorIndicators();
}
void SqlTextEdit::clearErrorIndicators()
{
// Clear any error indicators from position (0,0) to the last column of the last line
clearIndicatorRange(0, 0, lines(), lineLength(lines()), errorIndicatorNumber);
}
void SqlTextEdit::setErrorIndicator(int fromRow, int fromIndex, int toRow, int toIndex)
{
// Set error indicator for the specified range but only if they're enabled
if(showErrorIndicators)
fillIndicatorRange(fromRow, fromIndex, toRow, toIndex, errorIndicatorNumber);
}