Falkon/falkonOfficial
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Highlighting search text in address bar completer

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This commit is contained in:
nowrep 2012-08-25 13:08:21 +02:00
parent 6e3d7d581b
commit f2c5a7ac92
2 changed files with 127 additions and 22 deletions
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139
src/lib/navigation/completer/locationcompleterdelegate.cpp
View File

@ -92,42 +92,137 @@ void LocationCompleterDelegate::paint(QPainter* painter, const QStyleOptionViewI
painter->drawPixmap(starRect, starPixmap);
}
const QString &searchText = index.data(LocationCompleterModel::SearchStringRole).toString();
// Draw title
const int leftTitleEdge = leftPosition + 2;
//RTL Support //remove conflicting of right-aligned text and starpixmap!
// RTL Support: remove conflicting of right-aligned text and starpixmap!
const int rightTitleEdge = rightPosition - m_padding - starPixmapWidth;
QRect titleRect(leftTitleEdge, opt.rect.top() + m_padding, rightTitleEdge - leftTitleEdge, titleMetrics.height());
QString title(titleMetrics.elidedText(index.data(LocationCompleterModel::TitleRole).toString(), Qt::ElideRight, titleRect.width()));
painter->setFont(titleFont);
//RTL Support
#define LRE QChar(0x202A)
#define RLE QChar(0x202B)
#define PDF QChar(0x202C)
//by computing 'alignment' we align text by its direction not by application layout direction!
const Qt::LayoutDirection direction = w ? w->layoutDirection() : QApplication::layoutDirection();
Qt::LayoutDirection textDirection = title.isRightToLeft() ? Qt::RightToLeft : Qt::LeftToRight;
Qt::Alignment alignment = textDirection == direction ? Qt::AlignLeft : Qt::AlignRight;
QString directedTitle = title;
directedTitle.isRightToLeft() ? directedTitle.prepend(RLE) : directedTitle.prepend(LRE);
directedTitle.append(PDF);
style->drawItemText(painter, titleRect, alignment | Qt::TextSingleLine, opt.palette, true, directedTitle, colorRole);
drawHighlightedTextLine(titleRect, title, searchText, painter, style, opt, colorRole);
// Draw link
const int infoYPos = titleRect.bottom() + opt.fontMetrics.leading();
QRect linkRect(titleRect.x(), infoYPos, titleRect.width(), opt.fontMetrics.height());
const QString &link = opt.fontMetrics.elidedText(index.data(Qt::DisplayRole).toString(), Qt::ElideRight, linkRect.width());
QString link(opt.fontMetrics.elidedText(index.data(Qt::DisplayRole).toString(), Qt::ElideRight, linkRect.width()));
painter->setFont(opt.font);
//RTL Support
textDirection = link.isRightToLeft() ? Qt::RightToLeft : Qt::LeftToRight;
alignment = textDirection == direction ? Qt::AlignLeft : Qt::AlignRight;
QString directedLink = link;
directedLink.isRightToLeft() ? directedLink.prepend(RLE) : directedLink.prepend(LRE);
directedLink.append(PDF);
drawHighlightedTextLine(linkRect, link, searchText, painter, style, opt, colorLinkRole);
}
style->drawItemText(painter, linkRect, Qt::TextSingleLine | alignment, opt.palette, true, directedLink, colorLinkRole);
void LocationCompleterDelegate::drawHighlightedTextLine(const QRect &rect, QString text, const QString &searchText,
QPainter* painter, const QStyle* style, const QStyleOptionViewItemV4 &option,
const QPalette::ColorRole &role) const
{
QList<int> delimiters;
const QStringList &searchStrings = searchText.split(' ', QString::SkipEmptyParts);
foreach(const QString & string, searchStrings) {
int delimiter = text.indexOf(string, 0, Qt::CaseInsensitive);
while (delimiter != -1) {
delimiters.append(delimiter);
delimiters.append(delimiter + string.length());
delimiter = text.indexOf(string, delimiters.last(), Qt::CaseInsensitive);
}
}
// If we don't find any match, just paint it without any highlight
if (delimiters.isEmpty() || delimiters.count() % 2) {
drawTextLine(rect, text, painter, style, option, role);
return;
}
QFont normalFont = painter->font();
QFont boldFont = normalFont;
boldFont.setBold(true);
boldFont.setUnderline(true);
QFontMetrics normalMetrics(normalFont);
QFontMetrics boldMetrics(boldFont);
int lastEndPos = 0;
int lastRectPos = rect.left();
while (!delimiters.isEmpty()) {
int start = delimiters.takeFirst();
int end = delimiters.takeFirst();
const QString &normalPart = text.mid(lastEndPos, start - lastEndPos);
const QString &boldPart = text.mid(start, end - start);
lastEndPos = end;
if (!normalPart.isEmpty()) {
int width = normalMetrics.width(normalPart);
QRect nRect(lastRectPos, rect.top(), width, rect.height());
painter->setFont(normalFont);
drawTextLine(adjustRect(rect, nRect), normalPart, painter, style, option, role);
lastRectPos += width;
}
if (!boldPart.isEmpty()) {
int width = boldMetrics.width(boldPart);
QRect bRect(lastRectPos, rect.top(), width, rect.height());
painter->setFont(boldFont);
drawTextLine(adjustRect(rect, bRect), boldPart, painter, style, option, role);
lastRectPos += width;
}
if (delimiters.isEmpty() && lastEndPos != text.size()) {
const QString &lastText = text.mid(lastEndPos);
int width = normalMetrics.width(lastText);
QRect nRect(lastRectPos, rect.top(), width, rect.height());
painter->setFont(normalFont);
drawTextLine(adjustRect(rect, nRect), lastText, painter, style, option, role);
}
}
}
// RTL Support
#define LRE QChar(0x202A)
#define RLE QChar(0x202B)
#define PDF QChar(0x202C)
void LocationCompleterDelegate::drawTextLine(const QRect &rect, QString text, QPainter* painter,
const QStyle* style, const QStyleOptionViewItemV4 &option,
const QPalette::ColorRole &role) const
{
if (rect.width() > 0) {
const Qt::LayoutDirection direction = option.widget ? option.widget->layoutDirection() : QApplication::layoutDirection();
Qt::LayoutDirection textDirection = text.isRightToLeft() ? Qt::RightToLeft : Qt::LeftToRight;
Qt::Alignment alignment = textDirection == direction ? Qt::AlignLeft : Qt::AlignRight;
text.isRightToLeft() ? text.prepend(RLE) : text.prepend(LRE);
text.append(PDF);
style->drawItemText(painter, rect, Qt::TextSingleLine | alignment, option.palette, true, text, role);
}
}
QRect LocationCompleterDelegate::adjustRect(const QRect &original, const QRect &created) const
{
int crLeft = created.left() + created.width();
int orLeft = original.left() + original.width();
if (crLeft > orLeft) {
QRect nRect = created;
nRect.setWidth(orLeft - created.left());
return nRect;
}
return created;
}
QSize LocationCompleterDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const

10
src/lib/navigation/completer/locationcompleterdelegate.h
View File

@ -33,6 +33,16 @@ public:
QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const;
private:
void drawHighlightedTextLine(const QRect &rect, QString text, const QString &searchText,
QPainter* painter, const QStyle* style, const QStyleOptionViewItemV4 &option,
const QPalette::ColorRole &role) const;
void drawTextLine(const QRect &rect, QString text, QPainter* painter,
const QStyle* style, const QStyleOptionViewItemV4 &option,
const QPalette::ColorRole &role) const;
inline QRect adjustRect(const QRect &original, const QRect &created) const;
mutable int m_rowHeight;
mutable int m_padding;