X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/a333c0d7446e38c3ec93f41c6761a64dbf6f6b0d..539531e1df468a4e0f138ba087498f83c0c44225:/src/dolphincolumnview.cpp diff --git a/src/dolphincolumnview.cpp b/src/dolphincolumnview.cpp index 563f68f31..7a1bc4a25 100644 --- a/src/dolphincolumnview.cpp +++ b/src/dolphincolumnview.cpp @@ -1,5 +1,5 @@ /*************************************************************************** - * Copyright (C) 2006 by Peter Penz (peter.penz@gmx.at) * + * Copyright (C) 2007 by Peter Penz * * * * 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 * @@ -19,97 +19,520 @@ #include "dolphincolumnview.h" +#include "dolphinmodel.h" #include "dolphincontroller.h" #include "dolphinsettings.h" #include "dolphin_columnmodesettings.h" -#include -#include -#include +#include +#include +#include -#include -#include +#include +#include +#include +#include +#include -DolphinColumnView::DolphinColumnView(QWidget* parent, DolphinController* controller) : - QColumnView(parent), - m_controller(controller) +/** + * Represents one column inside the DolphinColumnView and has been + * extended to respect view options and hovering information. + */ +class ColumnWidget : public QListView { - Q_ASSERT(controller != 0); +public: + ColumnWidget(QWidget* parent, + DolphinColumnView* columnView, + const KUrl& url); + virtual ~ColumnWidget(); - setAcceptDrops(true); + /** Sets the size of the icons. */ + void setDecorationSize(const QSize& size); + + /** + * An active column is defined as column, which shows the same URL + * as indicated by the URL navigator. The active column is usually + * drawn in a lighter color. All operations are applied to this column. + */ + void setActive(bool active); + inline bool isActive() const; + + /** + * Sets the directory URL of the child column that is shown next to + * this column. This property is only used for a visual indication + * of the shown directory, it does not trigger a loading of the model. + */ + inline void setChildUrl(const KUrl& url); + inline const KUrl& childUrl() const; + + /** + * Returns the directory URL that is shown inside the column widget. + */ + inline const KUrl& url() const; + +protected: + virtual QStyleOptionViewItem viewOptions() const; + virtual void dragEnterEvent(QDragEnterEvent* event); + virtual void dragLeaveEvent(QDragLeaveEvent* event); + virtual void dragMoveEvent(QDragMoveEvent* event); + virtual void dropEvent(QDropEvent* event); + virtual void paintEvent(QPaintEvent* event); + virtual void mousePressEvent(QMouseEvent* event); + virtual void keyPressEvent(QKeyEvent* event); + virtual void contextMenuEvent(QContextMenuEvent* event); + virtual void selectionChanged(const QItemSelection& selected, const QItemSelection& deselected); + +private: + /** Used by ColumnWidget::setActive(). */ + void activate(); + + /** Used by ColumnWidget::setActive(). */ + void deactivate(); + +private: + bool m_active; + DolphinColumnView* m_view; + KUrl m_url; // URL of the directory that is shown + KUrl m_childUrl; // URL of the next column that is shown + QStyleOptionViewItem m_viewOptions; + + bool m_dragging; // TODO: remove this property when the issue #160611 is solved in Qt 4.4 + QRect m_dropRect; // TODO: remove this property when the issue #160611 is solved in Qt 4.4 +}; + +ColumnWidget::ColumnWidget(QWidget* parent, + DolphinColumnView* columnView, + const KUrl& url) : + QListView(columnView), + m_active(true), + m_view(columnView), + m_url(url), + m_childUrl(), + m_dragging(false), + m_dropRect() +{ + setMouseTracking(true); + viewport()->setAttribute(Qt::WA_Hover); + setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); + setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn); setSelectionBehavior(SelectItems); + setSelectionMode(QAbstractItemView::ExtendedSelection); setDragDropMode(QAbstractItemView::DragDrop); setDropIndicatorShown(false); - - viewport()->setAttribute(Qt::WA_Hover); - - if (KGlobalSettings::singleClick()) { - connect(this, SIGNAL(clicked(const QModelIndex&)), - controller, SLOT(triggerItem(const QModelIndex&))); - } else { - connect(this, SIGNAL(doubleClicked(const QModelIndex&)), - controller, SLOT(triggerItem(const QModelIndex&))); - } - connect(this, SIGNAL(activated(const QModelIndex&)), - controller, SLOT(triggerItem(const QModelIndex&))); - connect(controller, SIGNAL(zoomIn()), - this, SLOT(zoomIn())); - connect(controller, SIGNAL(zoomOut()), - this, SLOT(zoomOut())); + setFocusPolicy(Qt::NoFocus); // apply the column mode settings to the widget const ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings(); Q_ASSERT(settings != 0); - m_viewOptions = QColumnView::viewOptions(); + m_viewOptions = QListView::viewOptions(); QFont font(settings->fontFamily(), settings->fontSize()); font.setItalic(settings->italicFont()); font.setBold(settings->boldFont()); m_viewOptions.font = font; - updateDecorationSize(); + const int iconSize = settings->iconSize(); + m_viewOptions.decorationSize = QSize(iconSize, iconSize); + + KFileItemDelegate* delegate = new KFileItemDelegate(this); + setItemDelegate(delegate); + + activate(); + + connect(this, SIGNAL(entered(const QModelIndex&)), + m_view->m_controller, SLOT(emitItemEntered(const QModelIndex&))); + connect(this, SIGNAL(viewportEntered()), + m_view->m_controller, SLOT(emitViewportEntered())); } -DolphinColumnView::~DolphinColumnView() +ColumnWidget::~ColumnWidget() { } -QStyleOptionViewItem DolphinColumnView::viewOptions() const +void ColumnWidget::setDecorationSize(const QSize& size) { - return m_viewOptions; + m_viewOptions.decorationSize = size; + doItemsLayout(); } -void DolphinColumnView::contextMenuEvent(QContextMenuEvent* event) +void ColumnWidget::setActive(bool active) { - QColumnView::contextMenuEvent(event); - m_controller->triggerContextMenuRequest(event->pos()); + if (m_active == active) { + return; + } + + m_active = active; + + if (active) { + activate(); + } else { + deactivate(); + } } -void DolphinColumnView::mouseReleaseEvent(QMouseEvent* event) +inline bool ColumnWidget::isActive() const { - QColumnView::mouseReleaseEvent(event); - m_controller->triggerActivation(); + return m_active; } -void DolphinColumnView::dragEnterEvent(QDragEnterEvent* event) +inline void ColumnWidget::setChildUrl(const KUrl& url) +{ + m_childUrl = url; +} + +inline const KUrl& ColumnWidget::childUrl() const +{ + return m_childUrl; +} + +const KUrl& ColumnWidget::url() const +{ + return m_url; +} + +QStyleOptionViewItem ColumnWidget::viewOptions() const +{ + return m_viewOptions; +} + +void ColumnWidget::dragEnterEvent(QDragEnterEvent* event) { if (event->mimeData()->hasUrls()) { event->acceptProposedAction(); } + + m_dragging = true; +} + +void ColumnWidget::dragLeaveEvent(QDragLeaveEvent* event) +{ + QListView::dragLeaveEvent(event); + + // TODO: remove this code when the issue #160611 is solved in Qt 4.4 + m_dragging = false; + setDirtyRegion(m_dropRect); } -void DolphinColumnView::dropEvent(QDropEvent* event) +void ColumnWidget::dragMoveEvent(QDragMoveEvent* event) +{ + QListView::dragMoveEvent(event); + + // TODO: remove this code when the issue #160611 is solved in Qt 4.4 + const QModelIndex index = indexAt(event->pos()); + setDirtyRegion(m_dropRect); + m_dropRect = visualRect(index); + setDirtyRegion(m_dropRect); +} + +void ColumnWidget::dropEvent(QDropEvent* event) { const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData()); if (!urls.isEmpty()) { - m_controller->indicateDroppedUrls(urls, - indexAt(event->pos()), - event->source()); event->acceptProposedAction(); + m_view->m_controller->indicateDroppedUrls(urls, + url(), + indexAt(event->pos()), + event->source()); } - QColumnView::dropEvent(event); + QListView::dropEvent(event); + m_dragging = false; +} + +void ColumnWidget::paintEvent(QPaintEvent* event) +{ + if (!m_childUrl.isEmpty()) { + // indicate the shown URL of the next column by highlighting the shown folder item + const QAbstractProxyModel* proxyModel = static_cast(m_view->model()); + const DolphinModel* dolphinModel = static_cast(proxyModel->sourceModel()); + const QModelIndex dirIndex = dolphinModel->indexForUrl(m_childUrl); + const QModelIndex proxyIndex = proxyModel->mapFromSource(dirIndex); + if (proxyIndex.isValid() && !selectionModel()->isSelected(proxyIndex)) { + const QRect itemRect = visualRect(proxyIndex); + QPainter painter(viewport()); + painter.save(); + + QColor color = KColorScheme(QPalette::Active, KColorScheme::View).foreground().color(); + color.setAlpha(32); + painter.setPen(Qt::NoPen); + painter.setBrush(color); + painter.drawRect(itemRect); + + painter.restore(); + } + } + + QListView::paintEvent(event); + + // TODO: remove this code when the issue #160611 is solved in Qt 4.4 + if (m_dragging) { + const QBrush& brush = m_viewOptions.palette.brush(QPalette::Normal, QPalette::Highlight); + DolphinController::drawHoverIndication(viewport(), m_dropRect, brush); + } +} + +void ColumnWidget::mousePressEvent(QMouseEvent* event) +{ + if (!m_active) { + m_view->requestActivation(this); + } + + QListView::mousePressEvent(event); +} + +void ColumnWidget::keyPressEvent(QKeyEvent* event) +{ + QListView::keyPressEvent(event); + + const QItemSelectionModel* selModel = selectionModel(); + const QModelIndex currentIndex = selModel->currentIndex(); + const bool triggerItem = currentIndex.isValid() + && (event->key() == Qt::Key_Return) + && (selModel->selectedIndexes().count() <= 1); + if (triggerItem) { + m_view->triggerItem(currentIndex); + } +} + +void ColumnWidget::contextMenuEvent(QContextMenuEvent* event) +{ + if (!m_active) { + m_view->requestActivation(this); + } + + QListView::contextMenuEvent(event); + + const QModelIndex index = indexAt(event->pos()); + if (index.isValid() || m_active) { + // Only open a context menu above an item or if the mouse is above + // the active column. + const QPoint pos = m_view->viewport()->mapFromGlobal(event->globalPos()); + m_view->m_controller->triggerContextMenuRequest(pos); + } +} + +void ColumnWidget::selectionChanged(const QItemSelection& selected, const QItemSelection& deselected) +{ + QListView::selectionChanged(selected, deselected); + + QItemSelectionModel* selModel = m_view->selectionModel(); + selModel->select(selected, QItemSelectionModel::Select); + selModel->select(deselected, QItemSelectionModel::Deselect); +} + +void ColumnWidget::activate() +{ + if (m_view->hasFocus()) { + setFocus(Qt::OtherFocusReason); + } + m_view->setFocusProxy(this); + + // TODO: Connecting to the signal 'activated()' is not possible, as kstyle + // does not forward the single vs. doubleclick to it yet (KDE 4.1?). Hence it is + // necessary connecting the signal 'singleClick()' or 'doubleClick'. + if (KGlobalSettings::singleClick()) { + connect(this, SIGNAL(clicked(const QModelIndex&)), + m_view, SLOT(triggerItem(const QModelIndex&))); + } else { + connect(this, SIGNAL(doubleClicked(const QModelIndex&)), + m_view, SLOT(triggerItem(const QModelIndex&))); + } + + const QColor bgColor = KColorScheme(QPalette::Active, KColorScheme::View).background().color(); + QPalette palette = viewport()->palette(); + palette.setColor(viewport()->backgroundRole(), bgColor); + viewport()->setPalette(palette); + + if (!m_childUrl.isEmpty()) { + // assure that the current index is set on the index that represents + // the child URL + const QAbstractProxyModel* proxyModel = static_cast(model()); + const KDirModel* dirModel = static_cast(proxyModel->sourceModel()); + const QModelIndex dirIndex = dirModel->indexForUrl(m_childUrl); + const QModelIndex proxyIndex = proxyModel->mapFromSource(dirIndex); + selectionModel()->setCurrentIndex(proxyIndex, QItemSelectionModel::Current); + } + + update(); +} + +void ColumnWidget::deactivate() +{ + // TODO: Connecting to the signal 'activated()' is not possible, as kstyle + // does not forward the single vs. doubleclick to it yet (KDE 4.1?). Hence it is + // necessary connecting the signal 'singleClick()' or 'doubleClick'. + if (KGlobalSettings::singleClick()) { + disconnect(this, SIGNAL(clicked(const QModelIndex&)), + m_view, SLOT(triggerItem(const QModelIndex&))); + } else { + disconnect(this, SIGNAL(doubleClicked(const QModelIndex&)), + m_view, SLOT(triggerItem(const QModelIndex&))); + } + + QColor bgColor = KColorScheme(QPalette::Active, KColorScheme::View).background().color(); + const QColor fgColor = KColorScheme(QPalette::Active, KColorScheme::View).foreground().color(); + bgColor = KColorUtils::mix(bgColor, fgColor, 0.04); + + QPalette palette = viewport()->palette(); + palette.setColor(viewport()->backgroundRole(), bgColor); + viewport()->setPalette(palette); + + selectionModel()->clear(); + + update(); +} + +// --- + +DolphinColumnView::DolphinColumnView(QWidget* parent, DolphinController* controller) : + QAbstractItemView(parent), + m_controller(controller), + m_index(-1), + m_contentX(0), + m_columns(), + m_animation(0) +{ + Q_ASSERT(controller != 0); + + setAcceptDrops(true); + setDragDropMode(QAbstractItemView::DragDrop); + setDropIndicatorShown(false); + setSelectionMode(ExtendedSelection); + + connect(this, SIGNAL(entered(const QModelIndex&)), + controller, SLOT(emitItemEntered(const QModelIndex&))); + connect(this, SIGNAL(viewportEntered()), + controller, SLOT(emitViewportEntered())); + connect(controller, SIGNAL(zoomIn()), + this, SLOT(zoomIn())); + connect(controller, SIGNAL(zoomOut()), + this, SLOT(zoomOut())); + connect(controller, SIGNAL(urlChanged(const KUrl&)), + this, SLOT(showColumn(const KUrl&))); + + connect(horizontalScrollBar(), SIGNAL(valueChanged(int)), + this, SLOT(moveContentHorizontally(int))); + + ColumnWidget* column = new ColumnWidget(viewport(), this, m_controller->url()); + m_columns.append(column); + setActiveColumnIndex(0); + + updateDecorationSize(); + + m_animation = new QTimeLine(500, this); + connect(m_animation, SIGNAL(frameChanged(int)), horizontalScrollBar(), SLOT(setValue(int))); +} + +DolphinColumnView::~DolphinColumnView() +{ +} + +QModelIndex DolphinColumnView::indexAt(const QPoint& point) const +{ + foreach (ColumnWidget* column, m_columns) { + const QPoint topLeft = column->frameGeometry().topLeft(); + const QPoint adjustedPoint(point.x() - topLeft.x(), point.y() - topLeft.y()); + const QModelIndex index = column->indexAt(adjustedPoint); + if (index.isValid()) { + return index; + } + } + + return QModelIndex(); +} + +void DolphinColumnView::scrollTo(const QModelIndex& index, ScrollHint hint) +{ + activeColumn()->scrollTo(index, hint); +} + +QRect DolphinColumnView::visualRect(const QModelIndex& index) const +{ + return activeColumn()->visualRect(index); +} + +void DolphinColumnView::setModel(QAbstractItemModel* model) +{ + activeColumn()->setModel(model); + QAbstractItemView::setModel(model); +} + +bool DolphinColumnView::isIndexHidden(const QModelIndex& index) const +{ + return false;//activeColumn()->isIndexHidden(index); +} + +QModelIndex DolphinColumnView::moveCursor(CursorAction cursorAction, Qt::KeyboardModifiers modifiers) +{ + // Parts of this code have been taken from QColumnView::moveCursor(). + // Copyright (C) 1992-2007 Trolltech ASA. + + Q_UNUSED(modifiers); + if (model() == 0) { + return QModelIndex(); + } + + const QModelIndex current = currentIndex(); + if (isRightToLeft()) { + if (cursorAction == MoveLeft) { + cursorAction = MoveRight; + } else if (cursorAction == MoveRight) { + cursorAction = MoveLeft; + } + } + + switch (cursorAction) { + case MoveLeft: + if (m_index > 0) { + setActiveColumnIndex(m_index - 1); + } + break; + + case MoveRight: + if (m_index < m_columns.count() - 1) { + setActiveColumnIndex(m_index + 1); + } + break; + + default: + break; + } + + return QModelIndex(); +} + +void DolphinColumnView::setSelection(const QRect& rect, QItemSelectionModel::SelectionFlags flags) +{ + //activeColumn()->setSelection(rect, flags); +} + +QRegion DolphinColumnView::visualRegionForSelection(const QItemSelection& selection) const +{ + return QRegion(); //activeColumn()->visualRegionForSelection(selection); +} + +int DolphinColumnView::horizontalOffset() const +{ + return -m_contentX; +} + +int DolphinColumnView::verticalOffset() const +{ + return 0; +} + +void DolphinColumnView::mousePressEvent(QMouseEvent* event) +{ + m_controller->triggerActivation(); + QAbstractItemView::mousePressEvent(event); +} + +void DolphinColumnView::resizeEvent(QResizeEvent* event) +{ + QAbstractItemView::resizeEvent(event); + layoutColumns(); + updateScrollBar(); } void DolphinColumnView::zoomIn() @@ -140,6 +563,100 @@ void DolphinColumnView::zoomOut() } } +void DolphinColumnView::triggerItem(const QModelIndex& index) +{ + m_controller->triggerItem(index); + + const Qt::KeyboardModifiers modifiers = QApplication::keyboardModifiers(); + if ((modifiers & Qt::ControlModifier) || (modifiers & Qt::ShiftModifier)) { + return; + } + + const QAbstractProxyModel* proxyModel = static_cast(model()); + const KDirModel* dirModel = static_cast(proxyModel->sourceModel()); + const KFileItem item = dirModel->itemForIndex(proxyModel->mapToSource(index)); + if ((item.url() != activeColumn()->url()) && item.isDir()) { + deleteInactiveChildColumns(); + + const KUrl& childUrl = m_controller->url(); + activeColumn()->setChildUrl(childUrl); + + ColumnWidget* column = new ColumnWidget(viewport(), this, childUrl); + column->setModel(model()); + column->setRootIndex(index); + + m_columns.append(column); + + setActiveColumnIndex(m_index + 1); + + // Before invoking layoutColumns() the column must be shown. To prevent + // a flickering the initial geometry is set to be invisible. + column->setGeometry(QRect(-1, -1, 1, 1)); + column->show(); + + layoutColumns(); + updateScrollBar(); + assureVisibleActiveColumn(); + } +} + +void DolphinColumnView::moveContentHorizontally(int x) +{ + m_contentX = -x; + layoutColumns(); +} + +void DolphinColumnView::showColumn(const KUrl& url) +{ + if (!m_columns[0]->url().isParentOf(url)) { + // the URL is no child URL of the column view, hence do nothing + return; + } + + int columnIndex = 0; + foreach (ColumnWidget* column, m_columns) { + if (column->url() == url) { + // the column represents already the requested URL, hence activate it + requestActivation(column); + return; + } else if (!column->url().isParentOf(url)) { + // the column is no parent of the requested URL, hence it must + // be deleted and a new column must be loaded + if (columnIndex > 0) { + setActiveColumnIndex(columnIndex - 1); + deleteInactiveChildColumns(); + } + + const QAbstractProxyModel* proxyModel = static_cast(model()); + const KDirModel* dirModel = static_cast(proxyModel->sourceModel()); + const QModelIndex dirIndex = dirModel->indexForUrl(url); + if (dirIndex.isValid()) { + triggerItem(proxyModel->mapFromSource(dirIndex)); + } + return; + } + ++columnIndex; + } +} + +void DolphinColumnView::updateDecorationSize() +{ + ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings(); + const int iconSize = settings->iconSize(); + + foreach (QObject* object, viewport()->children()) { + if (object->inherits("QListView")) { + ColumnWidget* widget = static_cast(object); + widget->setDecorationSize(QSize(iconSize, iconSize)); + } + } + + m_controller->setZoomInPossible(isZoomInPossible()); + m_controller->setZoomOutPossible(isZoomOutPossible()); + + doItemsLayout(); +} + bool DolphinColumnView::isZoomInPossible() const { ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings(); @@ -152,16 +669,89 @@ bool DolphinColumnView::isZoomOutPossible() const return settings->iconSize() > K3Icon::SizeSmall; } -void DolphinColumnView::updateDecorationSize() +void DolphinColumnView::setActiveColumnIndex(int index) +{ + if (m_index == index) { + return; + } + + const bool hasActiveColumn = (m_index >= 0); + if (hasActiveColumn) { + m_columns[m_index]->setActive(false); + } + + m_index = index; + m_columns[m_index]->setActive(true); + + m_controller->setUrl(m_columns[m_index]->url()); +} + +void DolphinColumnView::layoutColumns() { + int x = m_contentX; ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings(); - const int iconSize = settings->iconSize(); - m_viewOptions.decorationSize = QSize(iconSize, iconSize); + const int columnWidth = settings->columnWidth(); + foreach (ColumnWidget* column, m_columns) { + column->setGeometry(QRect(x, 0, columnWidth, viewport()->height())); + x += columnWidth; + } +} - m_controller->setZoomInPossible(isZoomInPossible()); - m_controller->setZoomOutPossible(isZoomOutPossible()); +void DolphinColumnView::updateScrollBar() +{ + int contentWidth = 0; + foreach (ColumnWidget* column, m_columns) { + contentWidth += column->width(); + } - doItemsLayout(); + horizontalScrollBar()->setPageStep(contentWidth); + horizontalScrollBar()->setRange(0, contentWidth - viewport()->width()); +} + +void DolphinColumnView::assureVisibleActiveColumn() +{ + const int viewportWidth = viewport()->width(); + const int x = activeColumn()->x(); + const int width = activeColumn()->width(); + if (x + width > viewportWidth) { + int newContentX = m_contentX - x - width + viewportWidth; + if (newContentX > 0) { + newContentX = 0; + } + m_animation->setFrameRange(-m_contentX, -newContentX); + m_animation->start(); + } else if (x < 0) { + const int newContentX = m_contentX - x; + m_animation->setFrameRange(-m_contentX, -newContentX); + m_animation->start(); + } +} + +void DolphinColumnView::requestActivation(ColumnWidget* column) +{ + if (column->isActive()) { + assureVisibleActiveColumn(); + } else { + int index = 0; + foreach (ColumnWidget* currColumn, m_columns) { + if (currColumn == column) { + setActiveColumnIndex(index); + assureVisibleActiveColumn(); + return; + } + ++index; + } + } +} + +void DolphinColumnView::deleteInactiveChildColumns() +{ + QList::iterator start = m_columns.begin() + m_index + 1; + QList::iterator end = m_columns.end(); + for (QList::iterator it = start; it != end; ++it) { + (*it)->deleteLater(); + } + m_columns.erase(start, end); } #include "dolphincolumnview.moc"