TabWidget.h

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/*
 * TabWidget.h - LMMS-tabwidget
 *
 * Copyright (c) 2005-2008 Tobias Doerffel <tobydox/at/users.sourceforge.net>
 *
 * This file is part of LMMS - https://lmms.io
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program (see COPYING); if not, write to the
 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301 USA.
 *
 */
 
#ifndef LMMS_GUI_TAB_WIDGET_H
#define LMMS_GUI_TAB_WIDGET_H
 
#include <QWidget>
#include <QMap>
 
namespace lmms::gui
{
 
const int TEXT_TAB_HEIGHT = 14;
const int GRAPHIC_TAB_HEIGHT = 17;
 
class TabWidget : public QWidget
{
    Q_OBJECT
public:
    TabWidget(
        const QString& caption,
        QWidget* parent,
        bool usePixmap = false,
        bool resizable = false
    );
    ~TabWidget() override = default;
 
    void addTab(QWidget* w, const QString& name, const char* pixmap = nullptr, int idx = -1);
 
    void setActiveTab(int idx);
 
    int findTabAtPos(const QPoint& pos);
 
    inline int activeTab() const
    {
        return(m_activeTab);
    }
 
    // Themeability
    Q_PROPERTY(QColor tabText READ tabText WRITE setTabText)
    Q_PROPERTY(QColor tabTitleText READ tabTitleText WRITE setTabTitleText)
    Q_PROPERTY(QColor tabSelected READ tabSelected WRITE setTabSelected)
    Q_PROPERTY(QColor tabTextSelected READ tabTextSelected WRITE setTabTextSelected)
    Q_PROPERTY(QColor tabBackground READ tabBackground WRITE setTabBackground)
    Q_PROPERTY(QColor tabBorder READ tabBorder WRITE setTabBorder)
 
    QColor tabText() const;
    void setTabText(const QColor & c);
    QColor tabTitleText() const;
    void setTabTitleText(const QColor & c);
    QColor tabSelected() const;
    void setTabSelected(const QColor & c);
    QColor tabTextSelected() const;
    void setTabTextSelected(const QColor & c);
    QColor tabBackground() const;
    void setTabBackground(const QColor & c);
    QColor tabBorder() const;
    void setTabBorder(const QColor & c);
 
protected:
    bool event(QEvent* event) override;
    void mousePressEvent(QMouseEvent* me) override;
    void paintEvent(QPaintEvent* pe) override;
    void resizeEvent(QResizeEvent* re) override;
    void wheelEvent(QWheelEvent* we) override;
    QSize minimumSizeHint() const override;
    QSize sizeHint() const override;
 
private:
    struct widgetDesc
    {
        QWidget* w;         // ptr to widget
        const char* pixmap; // artwork for the widget
        QString name;        // name for widget
        int nwidth;          // width of name when painting (only valid for text tab)
    } ;
    using widgetStack = QMap<int, widgetDesc>;
 
    widgetStack m_widgets;
 
    bool    m_resizable;
    int     m_activeTab;
    QString m_caption;      // Tab caption, used as the tooltip text on icon tabs
    quint8  m_tabbarHeight; // The height of the tab bar
    quint8  m_tabheight;    // The height of the tabs
    bool    m_usePixmap;      // true if the tabs are to be displayed with icons. False for text tabs.
 
    QColor m_tabText;       // The color of the tabs' text.
    QColor m_tabTitleText;  // The color of the TabWidget's title text.
    QColor m_tabSelected;   // The highlighting color for the selected tab.
    QColor m_tabTextSelected;// The text color for the selected tab.
    QColor m_tabBackground; // The TabWidget's background color.
    QColor m_tabBorder;     // The TabWidget's borders color.
} ;
 
 
} // namespace lmms::gui
 
#endif // LMMS_GUI_TAB_WIDGET_H