/src/libtomahawk/playlist/topbar/lineedit.h

 1/**
 2 * Copyright (c) 2008 - 2009, Benjamin C. Meyer  <ben@meyerhome.net>
 3 *
 4 * Redistribution and use in source and binary forms, with or without
 5 * modification, are permitted provided that the following conditions
 6 * are met:
 7 * 1. Redistributions of source code must retain the above copyright
 8 *    notice, this list of conditions and the following disclaimer.
 9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 * 3. Neither the name of the Benjamin Meyer nor the names of its contributors
13 *    may be used to endorse or promote products derived from this software
14 *    without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef LINEEDIT_H
30#define LINEEDIT_H
31
32#include <QLineEdit>
33
34#include "dllmacro.h"
35class QHBoxLayout;
36
37/*
38    LineEdit is a subclass of QLineEdit that provides an easy and simple
39    way to add widgets on the left or right hand side of the text.
40
41    The layout of the widgets on either side are handled by a QHBoxLayout.
42    You can set the spacing around the widgets with setWidgetSpacing().
43
44    As widgets are added to the class they are inserted from the outside
45    into the center of the widget.
46*/
47class SideWidget;
48class DLLEXPORT LineEdit : public QLineEdit
49{
50    Q_OBJECT
51    Q_PROPERTY(QString inactiveText READ inactiveText WRITE setInactiveText)
52
53public:
54    enum WidgetPosition {
55        LeftSide,
56        RightSide
57    };
58
59    LineEdit(QWidget *parent = 0);
60    LineEdit(const QString &contents, QWidget *parent = 0);
61
62    void addWidget(QWidget *widget, WidgetPosition position);
63    void removeWidget(QWidget *widget);
64    void setWidgetSpacing(int spacing);
65    int widgetSpacing() const;
66    int textMargin(WidgetPosition position) const;
67    QString inactiveText() const;
68    void setInactiveText(const QString &text);
69
70    void paintEvent(QPaintEvent *event);
71
72protected:
73    void resizeEvent(QResizeEvent *event);
74    bool event(QEvent *event);
75
76protected slots:
77    void updateTextMargins();
78
79private:
80    void init();
81    void updateSideWidgetLocations();
82
83    SideWidget *m_leftWidget;
84    SideWidget *m_rightWidget;
85    QHBoxLayout *m_leftLayout;
86    QHBoxLayout *m_rightLayout;
87    QString m_inactiveText;
88};
89
90#endif // LINEEDIT_H
91