Color tip for QML; Start of a bit more extensible tooltip class.

src/plugins/texteditor/tooltip/tooltip.h

@@ -0,0 +1,101 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#ifndef TOOLTIP_H
+#define TOOLTIP_H
+
+#include "texteditor/texteditor_global.h"
+
+#include <QtCore/QSharedPointer>
+#include <QtCore/QObject>
+#include <QtCore/QTimer>
+
+QT_BEGIN_NAMESPACE
+class QPoint;
+class QString;
+class QColor;
+class QWidget;
+QT_END_NAMESPACE
+
+namespace TextEditor {
+
+namespace Internal {
+class Tip;
+class TipContent;
+}
+
+/*
+ * This class contains some code duplicated from QTooltip. It would be good to make that reusable.
+ */
+
+class TEXTEDITOR_EXPORT ToolTip : public QObject
+{
+    Q_OBJECT
+private:
+    ToolTip();
+
+public:
+    virtual ~ToolTip();
+
+    static ToolTip *instance();
+
+    void showText(const QPoint &pos, const QString &text, QWidget *w = 0);
+    void showColor(const QPoint &pos, const QColor &color, QWidget *w = 0);
+    void hide();
+    bool isVisible() const;
+
+    virtual bool eventFilter(QObject *o, QEvent *event);
+
+private:
+    bool acceptShow(const QSharedPointer<Internal::TipContent> &content,
+                    const QPoint &pos,
+                    QWidget *w);
+    void setUp(const QSharedPointer<Internal::TipContent> &content,
+               const QPoint &pos,
+               QWidget *w);
+    bool requiresSetUp(const QSharedPointer<Internal::TipContent> &content, QWidget *w) const;
+    void placeTip(const QPoint &pos, QWidget *w);
+    int tipScreen(const QPoint &pos, QWidget *w) const;
+    void showTip();
+    void hideTipWithDelay();
+    void hideQtTooltip();
+
+private slots:
+    void hideTipImmediately();
+
+private:
+    Internal::Tip *m_tip;
+    QWidget *m_widget;
+    QTimer m_showTimer;
+    QTimer m_hideDelayTimer;
+};
+
+} // namespace TextEditor
+
+#endif // TOOLTIP_H