Ref T515, elided PushButton

src/blackgui/elidedpushbutton.cpp

@@ -0,0 +1,44 @@
+/* Copyright (C) 2019
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+#include "elidedpushbutton.h"
+
+#include <QPainter>
+#include <QTextLine>
+#include <QFontMetrics>
+
+namespace BlackGui
+{
+    CElidedPushButton::CElidedPushButton(QWidget *parent) : QPushButton(parent)
+    { }
+
+    CElidedPushButton::CElidedPushButton(const QString &text, QWidget *parent)
+        : QPushButton(parent), m_elided(false), m_content(text)
+    {
+        this->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
+    }
+
+    void CElidedPushButton::setText(const QString &newText)
+    {
+        m_content = newText;
+        this->update();
+    }
+
+    void CElidedPushButton::paintEvent(QPaintEvent *event)
+    {
+        QPainter painter(this);
+        const QFontMetrics fontMetrics = painter.fontMetrics();
+        const int usableWidth = qRound(0.9 * this->width());
+
+        const QString elidedText = fontMetrics.elidedText(m_content, Qt::ElideRight, usableWidth);
+        m_elided = (elidedText != m_content);
+        QPushButton::setText(elidedText);
+        QPushButton::paintEvent(event);
+    }
+} // ns

src/blackgui/elidedpushbutton.h

@@ -0,0 +1,53 @@
+/* Copyright (C) 2019
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+//! \file
+
+#ifndef BLACKGUI_ELIDEDPUSHBUTTON_H
+#define BLACKGUI_ELIDEDPUSHBUTTON_H
+
+#include <QPushButton>
+
+namespace BlackGui
+{
+    /**
+     * Push button with elided text
+     * \remark based on http://doc.qt.io/qt-5/qtwidgets-widgets-elidedlabel-example.html
+     */
+    class CElidedPushButton : public QPushButton
+    {
+        Q_OBJECT
+
+    public:
+        //! Constructor
+        explicit CElidedPushButton(QWidget *parent = nullptr);
+
+        //! Constructor
+        explicit CElidedPushButton(const QString &text, QWidget *parent = nullptr);
+
+        //! Text
+        void setText(const QString &text);
+
+        //! Text
+        const QString &text() const { return m_content; }
+
+        //! Elided?
+        bool isElided() const { return m_elided; }
+
+    protected:
+        //! \copydoc QPushButton::paintEvent
+        void paintEvent(QPaintEvent *event) override;
+
+    private:
+        bool m_elided = false;
+        QString m_content;
+    };
+} // ns
+
+#endif // guard