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Diffstat (limited to 'src/views/dolphincolumnviewcontainer.cpp')
| -rw-r--r-- | src/views/dolphincolumnviewcontainer.cpp | 427 |
1 files changed, 0 insertions, 427 deletions
diff --git a/src/views/dolphincolumnviewcontainer.cpp b/src/views/dolphincolumnviewcontainer.cpp deleted file mode 100644 index 3216dd2b6..000000000 --- a/src/views/dolphincolumnviewcontainer.cpp +++ /dev/null @@ -1,427 +0,0 @@ -/*************************************************************************** - * Copyright (C) 2007-2009 by Peter Penz <[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 * - ***************************************************************************/ - -#include "dolphincolumnviewcontainer.h" - -#include "dolphin_columnmodesettings.h" - -#include "dolphincolumnview.h" -#include "dolphinviewcontroller.h" -#include "dolphinsortfilterproxymodel.h" -#include "draganddrophelper.h" -#include "settings/dolphinsettings.h" -#include "viewmodecontroller.h" - -#include <QPoint> -#include <QScrollBar> -#include <QTimeLine> -#include <QTimer> - -DolphinColumnViewContainer::DolphinColumnViewContainer(QWidget* parent, - DolphinViewController* dolphinViewController, - const ViewModeController* viewModeController) : - QScrollArea(parent), - m_dolphinViewController(dolphinViewController), - m_viewModeController(viewModeController), - m_active(false), - m_index(-1), - m_contentX(0), - m_columns(), - m_emptyViewport(0), - m_animation(0), - m_dragSource(0), - m_activeUrlTimer(0), - m_assureVisibleActiveColumnTimer(0) -{ - Q_ASSERT(dolphinViewController); - Q_ASSERT(viewModeController); - - setAcceptDrops(true); - setFocusPolicy(Qt::NoFocus); - setFrameShape(QFrame::NoFrame); - setLayoutDirection(Qt::LeftToRight); - - connect(viewModeController, SIGNAL(activationChanged(bool)), - this, SLOT(updateColumnsBackground(bool))); - - connect(horizontalScrollBar(), SIGNAL(valueChanged(int)), - this, SLOT(moveContentHorizontally(int))); - - m_animation = new QTimeLine(500, this); - connect(m_animation, SIGNAL(frameChanged(int)), horizontalScrollBar(), SLOT(setValue(int))); - - m_activeUrlTimer = new QTimer(this); - m_activeUrlTimer->setSingleShot(true); - m_activeUrlTimer->setInterval(200); - connect(m_activeUrlTimer, SIGNAL(timeout()), - this, SLOT(updateActiveUrl())); - - // Assuring that the active column gets fully visible is done with a small delay. This - // prevents that for temporary activations an animation gets started (e. g. when clicking - // on any folder of the parent column, the child column gets activated). - m_assureVisibleActiveColumnTimer = new QTimer(this); - m_assureVisibleActiveColumnTimer->setSingleShot(true); - m_assureVisibleActiveColumnTimer->setInterval(200); - connect(m_assureVisibleActiveColumnTimer, SIGNAL(timeout()), - this, SLOT(slotAssureVisibleActiveColumn())); - - DolphinColumnView* column = new DolphinColumnView(viewport(), this, viewModeController->url()); - m_columns.append(column); - requestActivation(column); - - m_emptyViewport = new QFrame(viewport()); - m_emptyViewport->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken); - - updateColumnsBackground(true); -} - -DolphinColumnViewContainer::~DolphinColumnViewContainer() -{ - delete m_dragSource; - m_dragSource = 0; -} - -KUrl DolphinColumnViewContainer::rootUrl() const -{ - return m_columns[0]->url(); -} - -QAbstractItemView* DolphinColumnViewContainer::activeColumn() const -{ - return m_columns[m_index]; -} - -void DolphinColumnViewContainer::showColumn(const KUrl& url) -{ - if (!rootUrl().isParentOf(url)) { - removeAllColumns(); - m_columns[0]->setUrl(url); - return; - } - - int columnIndex = 0; - foreach (DolphinColumnView* column, m_columns) { - if (column->url().equals(url, KUrl::CompareWithoutTrailingSlash)) { - // the column represents already the requested URL, hence activate it - requestActivation(column); - layoutColumns(); - return; - } else if (!column->url().isParentOf(url)) { - // the column is no parent of the requested URL, hence - // just delete all remaining columns - if (columnIndex > 0) { - QList<DolphinColumnView*>::iterator start = m_columns.begin() + columnIndex; - QList<DolphinColumnView*>::iterator end = m_columns.end(); - for (QList<DolphinColumnView*>::iterator it = start; it != end; ++it) { - deleteColumn(*it); - } - m_columns.erase(start, end); - - const int maxIndex = m_columns.count() - 1; - Q_ASSERT(maxIndex >= 0); - if (m_index > maxIndex) { - m_index = maxIndex; - } - break; - } - } - ++columnIndex; - } - - // Create missing columns. Assuming that the path is "/home/peter/Temp/" and - // the target path is "/home/peter/Temp/a/b/c/", then the columns "a", "b" and - // "c" will be created. - const int lastIndex = m_columns.count() - 1; - Q_ASSERT(lastIndex >= 0); - - const KUrl& activeUrl = m_columns[lastIndex]->url(); - Q_ASSERT(activeUrl.isParentOf(url)); - Q_ASSERT(activeUrl != url); - - QString path = activeUrl.url(KUrl::AddTrailingSlash); - const QString targetPath = url.url(KUrl::AddTrailingSlash); - - columnIndex = lastIndex; - int slashIndex = path.count('/'); - bool hasSubPath = (slashIndex >= 0); - while (hasSubPath) { - const QString subPath = targetPath.section('/', slashIndex, slashIndex); - if (subPath.isEmpty()) { - hasSubPath = false; - } else { - path += subPath + '/'; - ++slashIndex; - - const KUrl childUrl = KUrl(path); - m_columns[columnIndex]->setChildUrl(childUrl); - columnIndex++; - - DolphinColumnView* column = new DolphinColumnView(viewport(), this, childUrl); - m_columns.append(column); - - // Before invoking layoutColumns() the column must be set visible temporary. - // To prevent a flickering the initial geometry is set to a hidden position. - column->setGeometry(QRect(-1, -1, 1, 1)); - column->show(); - layoutColumns(); - } - } - - requestActivation(m_columns[columnIndex]); -} - -void DolphinColumnViewContainer::mousePressEvent(QMouseEvent* event) -{ - m_dolphinViewController->requestActivation(); - QScrollArea::mousePressEvent(event); -} - -void DolphinColumnViewContainer::keyPressEvent(QKeyEvent* event) -{ - if (event->key() == Qt::Key_Left) { - if (m_index > 0) { - requestActivation(m_columns[m_index - 1]); - } - } else { - QScrollArea::keyPressEvent(event); - } -} - -void DolphinColumnViewContainer::resizeEvent(QResizeEvent* event) -{ - QScrollArea::resizeEvent(event); - layoutColumns(); - assureVisibleActiveColumn(); -} - -void DolphinColumnViewContainer::wheelEvent(QWheelEvent* event) -{ - // let Ctrl+wheel events propagate to the DolphinView for icon zooming - if ((event->modifiers() & Qt::ControlModifier) == Qt::ControlModifier) { - event->ignore(); - } else { - QScrollArea::wheelEvent(event); - } -} - -void DolphinColumnViewContainer::moveContentHorizontally(int x) -{ - m_contentX = isRightToLeft() ? +x : -x; - layoutColumns(); -} - -void DolphinColumnViewContainer::updateColumnsBackground(bool active) -{ - if (active == m_active) { - return; - } - - m_active = active; - - // dim the background of the viewport - const QPalette::ColorRole role = viewport()->backgroundRole(); - QColor background = viewport()->palette().color(role); - background.setAlpha(0); // make background transparent - - QPalette palette = viewport()->palette(); - palette.setColor(role, background); - viewport()->setPalette(palette); - - foreach (DolphinColumnView* column, m_columns) { - column->updateBackground(); - } -} - -void DolphinColumnViewContainer::updateActiveUrl() -{ - const KUrl activeUrl = m_columns[m_index]->url(); - m_dolphinViewController->requestUrlChange(activeUrl); -} - -void DolphinColumnViewContainer::slotAssureVisibleActiveColumn() -{ - const int viewportWidth = viewport()->width(); - const int x = activeColumn()->x(); - - // When a column that is partly visible gets activated, - // it is useful to also assure that the neighbor column is partly visible. - // This allows the user to scroll to the first/last column without using the - // scrollbar and drag & drop operations to invisible columns. - const int neighborColumnGap = 3 * style()->pixelMetric(QStyle::PM_ScrollBarExtent, 0, verticalScrollBar()); - - const int width = activeColumn()->maximumWidth(); - if (x + width > viewportWidth) { - const int newContentX = m_contentX - x - width + viewportWidth; - if (isRightToLeft()) { - m_animation->setFrameRange(m_contentX, newContentX + neighborColumnGap); - } else { - m_animation->setFrameRange(-m_contentX, -newContentX + neighborColumnGap); - } - if (m_animation->state() != QTimeLine::Running) { - m_animation->start(); - } - } else if (x < 0) { - const int newContentX = m_contentX - x; - if (isRightToLeft()) { - m_animation->setFrameRange(m_contentX, newContentX - neighborColumnGap); - } else { - m_animation->setFrameRange(-m_contentX, -newContentX - neighborColumnGap); - } - if (m_animation->state() != QTimeLine::Running) { - m_animation->start(); - } - } -} - -void DolphinColumnViewContainer::assureVisibleActiveColumn() -{ - m_assureVisibleActiveColumnTimer->start(); -} - -void DolphinColumnViewContainer::layoutColumns() -{ - // Layout the position of the columns corresponding to their maximum width - QRect emptyViewportRect; - if (isRightToLeft()) { - int columnWidth = m_columns[0]->maximumWidth(); - int x = viewport()->width() - columnWidth + m_contentX; - foreach (DolphinColumnView* column, m_columns) { - columnWidth = column->maximumWidth(); - column->setGeometry(QRect(x, 0, columnWidth, viewport()->height())); - x -= columnWidth; - } - emptyViewportRect = QRect(0, 0, x + columnWidth, viewport()->height()); - } else { - int x = m_contentX; - foreach (DolphinColumnView* column, m_columns) { - const int columnWidth = column->maximumWidth(); - column->setGeometry(QRect(x, 0, columnWidth, viewport()->height())); - x += columnWidth; - } - emptyViewportRect = QRect(x, 0, viewport()->width() - x, viewport()->height()); - } - - // Show an empty viewport if the columns don't cover the whole viewport - if (emptyViewportRect.isValid()) { - m_emptyViewport->show(); - m_emptyViewport->setGeometry(emptyViewportRect); - } else { - m_emptyViewport->hide(); - } - - // Update the horizontal position indicator - int contentWidth = 0; - foreach (DolphinColumnView* column, m_columns) { - contentWidth += column->maximumWidth(); - } - - const int scrollBarMax = contentWidth - viewport()->width(); - const bool updateScrollBar = (horizontalScrollBar()->pageStep() != contentWidth) - || (horizontalScrollBar()->maximum() != scrollBarMax); - if (updateScrollBar) { - horizontalScrollBar()->setPageStep(contentWidth); - horizontalScrollBar()->setRange(0, scrollBarMax); - } -} - -void DolphinColumnViewContainer::requestActivation(DolphinColumnView* column) -{ - if (m_dolphinViewController->itemView() != column) { - m_dolphinViewController->setItemView(column); - } - if (focusProxy() != column) { - setFocusProxy(column); - } - - if (!column->isActive()) { - // Deactivate the currently active column - if (m_index >= 0) { - m_columns[m_index]->setActive(false); - } - - // Get the index of the column that should get activated - int index = 0; - foreach (DolphinColumnView* currColumn, m_columns) { - if (currColumn == column) { - break; - } - ++index; - } - - Q_ASSERT(index != m_index); - Q_ASSERT(index < m_columns.count()); - - // Activate the requested column - m_index = index; - m_columns[m_index]->setActive(true); - - m_activeUrlTimer->start(); // calls slot updateActiveUrl() - } - - assureVisibleActiveColumn(); -} - -void DolphinColumnViewContainer::removeAllColumns() -{ - QList<DolphinColumnView*>::iterator start = m_columns.begin() + 1; - QList<DolphinColumnView*>::iterator end = m_columns.end(); - for (QList<DolphinColumnView*>::iterator it = start; it != end; ++it) { - deleteColumn(*it); - } - m_columns.erase(start, end); - m_index = 0; - m_columns[0]->setActive(true); - assureVisibleActiveColumn(); -} - -void DolphinColumnViewContainer::deleteColumn(DolphinColumnView* column) -{ - if (!column) { - return; - } - - if (m_dolphinViewController->itemView() == column) { - m_dolphinViewController->setItemView(0); - } - // deleteWhenNotDragSource(column) does not necessarily delete column, - // and we want its preview generator destroyed immediately. - column->hide(); - // Prevent automatic destruction of column when this DolphinColumnViewContainer - // is destroyed. - column->setParent(0); - column->disconnect(); - - if (DragAndDropHelper::instance().isDragSource(column)) { - // The column is a drag source (the feature "Open folders - // during drag operations" is used). Deleting the view - // during an ongoing drag operation is not allowed, so - // this will postponed. - if (m_dragSource) { - // the old stored view is obviously not the drag source anymore - m_dragSource->deleteLater(); - m_dragSource = 0; - } - m_dragSource = column; - } else { - delete column; - column = 0; - } -} - -#include "dolphincolumnviewcontainer.moc" |