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Diffstat (limited to 'src/views/tooltips/tooltipmanager.h')
| -rw-r--r-- | src/views/tooltips/tooltipmanager.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/views/tooltips/tooltipmanager.h b/src/views/tooltips/tooltipmanager.h new file mode 100644 index 000000000..24e72f28b --- /dev/null +++ b/src/views/tooltips/tooltipmanager.h @@ -0,0 +1,106 @@ +/******************************************************************************* + * Copyright (C) 2008 by Konstantin Heil <[email protected]> * + * * + * 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; if not, write to the * + * Free Software Foundation, Inc., * + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * + *******************************************************************************/ + +#ifndef TOOLTIPMANAGER_H +#define TOOLTIPMANAGER_H + +#include <QObject> +#include <QRect> + +#include <kfileitem.h> + +class DolphinModel; +class DolphinSortFilterProxyModel; +class FileMetaDataToolTip; +class QAbstractItemView; +class QModelIndex; +class QTimer; + +/** + * @brief Manages the tooltips for an item view. + * + * When hovering an item, a tooltip is shown after + * a short timeout. The tooltip is hidden again when the + * viewport is hovered or the item view has been left. + */ +class ToolTipManager : public QObject +{ + Q_OBJECT + +public: + explicit ToolTipManager(QAbstractItemView* parent, + DolphinSortFilterProxyModel* model); + virtual ~ToolTipManager(); + +public slots: + /** + * Hides the currently shown tooltip. Invoking this method is + * only needed when the tooltip should be hidden although + * an item is hovered. + */ + void hideTip(); + +protected: + virtual bool eventFilter(QObject* watched, QEvent* event); + +private slots: + void requestToolTip(const QModelIndex& index); + void hideToolTip(); + void prepareToolTip(); + void startPreviewJob(); + void setPreviewPix(const KFileItem& item, const QPixmap& pix); + void previewFailed(); + void showToolTip(); + +private: + void showToolTipDelayed(const QPixmap& pixmap); + +private: + QAbstractItemView* m_view; + DolphinModel* m_dolphinModel; + DolphinSortFilterProxyModel* m_proxyModel; + + /// Timeout from requesting a tooltip until the tooltip is shown + QTimer* m_prepareToolTipTimer; + + /// Timeout from requesting a tooltip until starting a job to + /// create a preview pixmap. The preview job is started before + /// m_prepareToolTipTimer has been exceeded, to have the preview + /// pixmap ideally before the tooltip will be shown. + QTimer* m_startPreviewJobTimer; + + /// Don't show the tooltip, before the preview has been received. The + /// time indicates the interval, when the check for a received + /// is done. + QTimer* m_waitOnPreviewTimer; + + /// The tooltip is shown slightly delayed to prevent a flickering + /// because of layouting the content. + QTimer* m_showToolTipDelayedTimer; + + FileMetaDataToolTip* m_fileMetaDataToolTip; + + KFileItem m_item; + QRect m_itemRect; + bool m_generatingPreview; + bool m_hasDefaultIcon; + QPixmap m_previewPixmap; +}; + +#endif |
