src/kitemviews/kfileitemlistwidget.h

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com>             *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #ifndef KFILEITEMLISTWIDGET_H
  21 #define KFILEITEMLISTWIDGET_H
  22
  23 #include <libdolphin_export.h>
  24
  25 #include <kitemviews/kitemlistwidget.h>
  26
  27 #include <QPixmap>
  28 #include <QPointF>
  29 #include <QStaticText>
  30
  31 class LIBDOLPHINPRIVATE_EXPORT KFileItemListWidget : public KItemListWidget
  32 {
  33     Q_OBJECT
  34
  35 public:
  36     enum Layout
  37     {
  38         IconsLayout,
  39         CompactLayout,
  40         DetailsLayout
  41     };
  42
  43     KFileItemListWidget(QGraphicsItem* parent);
  44     virtual ~KFileItemListWidget();
  45
  46     void setLayout(Layout layout);
  47     Layout layout() const;
  48
  49     virtual void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = 0);
  50
  51     virtual QRectF iconBoundingRect() const;
  52     virtual QRectF textBoundingRect() const;
  53     virtual QRectF expansionToggleRect() const;
  54
  55 protected:
  56     /**
  57      * Invalidates the cache which results in calling KFileItemListWidget::refreshCache() as
  58      * soon as the item need to gets repainted.
  59      */
  60     void invalidateCache();
  61
  62     /**
  63      * Is called if the cache got invalidated by KFileItemListWidget::invalidateCache().
  64      * The default implementation is empty.
  65      */
  66     virtual void refreshCache();
  67
  68     void setTextColor(const QColor& color);
  69     QColor textColor() const;
  70
  71     void setOverlay(const QPixmap& overlay);
  72     QPixmap overlay() const;
  73
  74     virtual void dataChanged(const QHash<QByteArray, QVariant>& current, const QSet<QByteArray>& roles = QSet<QByteArray>());
  75     virtual void visibleRolesChanged(const QList<QByteArray>& current, const QList<QByteArray>& previous);
  76     virtual void visibleRolesSizesChanged(const QHash<QByteArray, QSizeF>& current, const QHash<QByteArray, QSizeF>& previous);
  77     virtual void styleOptionChanged(const KItemListStyleOption& current, const KItemListStyleOption& previous);
  78     virtual void hoveredChanged(bool hovered);
  79     virtual void resizeEvent(QGraphicsSceneResizeEvent* event);
  80
  81 private:
  82     enum TextId {
  83         Name,
  84         Size,
  85         Date,
  86         Permissions,
  87         Owner,
  88         Group,
  89         Type,
  90         Destination,
  91         Path,
  92         TextIdCount // Mandatory last entry
  93     };
  94
  95     void triggerCacheRefreshing();
  96     void updateExpansionArea();
  97     void updatePixmapCache();
  98
  99     void updateTextsCache();
 100     void updateIconsLayoutTextCache();
 101     void updateCompactLayoutTextCache();
 102     void updateDetailsLayoutTextCache();
 103
 104     void updateAdditionalInfoTextColor();
 105
 106     QString roleText(TextId textId, const QVariant& roleValue) const;
 107
 108     void drawPixmap(QPainter* painter, const QPixmap& pixmap);
 109
 110     static QPixmap pixmapForIcon(const QString& name, int size);
 111     static TextId roleTextId(const QByteArray& role);
 112
 113 private:
 114     bool m_isDir;
 115     bool m_dirtyLayout;
 116     bool m_dirtyContent;
 117     QSet<QByteArray> m_dirtyContentRoles;
 118
 119     Layout m_layout;
 120     QPointF m_pixmapPos;
 121     QPixmap m_pixmap;
 122     QSize m_scaledPixmapSize;
 123
 124     QRectF m_hoverPixmapRect;
 125     QPixmap m_hoverPixmap;
 126
 127     QPointF m_textPos[TextIdCount];
 128     QStaticText m_text[TextIdCount];
 129     QRectF m_textBoundingRect;
 130
 131     QList<QByteArray> m_sortedVisibleRoles;
 132
 133     QRectF m_expansionArea;
 134
 135     QColor m_customTextColor;
 136     QColor m_additionalInfoTextColor;
 137
 138     QPixmap m_overlay;
 139 };
 140
 141 #endif
 142
 143