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author | David Boddie <david.boddie@nokia.com> | 2011-04-28 19:04:16 +0200 |
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committer | David Boddie <david.boddie@nokia.com> | 2011-05-24 17:08:20 +0200 |
commit | 4d10065c54f9b277f44ed042f4e18858dafdd1df (patch) | |
tree | d06de356345106b54cdd3517e90084f7baeda2d7 /examples/widgets/elidedlabel/elidedlabel.cpp | |
parent | f9f395c28b8ce66c0605607ea76ad1099d45a6c9 (diff) |
Fixed line endings.
Conflicts:
examples/widgets/applicationicon/applicationicon.svg
examples/widgets/applicationicon/main.cpp
examples/widgets/elidedlabel/elidedlabel.cpp
examples/widgets/elidedlabel/elidedlabel.h
examples/widgets/elidedlabel/main.cpp
examples/widgets/elidedlabel/testwidget.cpp
examples/widgets/elidedlabel/testwidget.h
(cherry picked from commit 1b555a91f05b68c697b6985d1b672dc0fba5fc5a)
(cherry picked from commit c0e0bfdd451f42b10051e8064153b811080ffa0e)
Diffstat (limited to 'examples/widgets/elidedlabel/elidedlabel.cpp')
-rw-r--r-- | examples/widgets/elidedlabel/elidedlabel.cpp | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/examples/widgets/elidedlabel/elidedlabel.cpp b/examples/widgets/elidedlabel/elidedlabel.cpp new file mode 100644 index 0000000000..4f3ac5e843 --- /dev/null +++ b/examples/widgets/elidedlabel/elidedlabel.cpp @@ -0,0 +1,71 @@ +#include "elidedlabel.h" + +#include <QPainter> +#include <QTextLayout> +#include <QDebug> + +//! [0] +ElidedLabel::ElidedLabel(const QString &text, QWidget *parent) + : QFrame(parent) + , elided(false) + , content(text) +{ + setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred); +} +//! [0] + +//! [1] +void ElidedLabel::setText(const QString &newText) +{ + content = newText; + update(); +} +//! [1] + +//! [2] +void ElidedLabel::paintEvent(QPaintEvent *event) +{ + QFrame::paintEvent(event); + + QPainter painter(this); + QFontMetrics fontMetrics = painter.fontMetrics(); + + bool didElide = false; + int lineSpacing = fontMetrics.lineSpacing(); + int y = 0; + + QTextLayout textLayout(content, painter.font()); + textLayout.beginLayout(); + forever { + QTextLine line = textLayout.createLine(); + + if (!line.isValid()) + break; + + line.setLineWidth(width()); + int nextLineY = y + lineSpacing; + + if (height() >= nextLineY + lineSpacing) { + line.draw(&painter, QPoint(0, y)); + y = nextLineY; + //! [2] + //! [3] + } else { + QString lastLine = content.mid(line.textStart()); + QString elidedLastLine = fontMetrics.elidedText(lastLine, Qt::ElideRight, width()); + painter.drawText(QPoint(0, y + fontMetrics.ascent()), elidedLastLine); + line = textLayout.createLine(); + didElide = line.isValid(); + break; + } + } + textLayout.endLayout(); + //! [3] + + //! [4] + if (didElide != elided) { + elided = didElide; + emit elisionChanged(didElide); + } +} +//! [4] |