/***************************************************************************
- * Copyright (C) 2006 by Peter Penz *
- * peter.penz@gmx.at *
+ * Copyright (C) 2006 by Peter Penz (peter.penz@gmx.at) *
* *
* 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 *
* 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., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
***************************************************************************/
#include "dolphiniconsview.h"
-#include "dolphinview.h"
+#include "dolphincategorydrawer.h"
+#include "dolphincontroller.h"
+#include "dolphinsettings.h"
+#include "dolphin_iconsmodesettings.h"
+#include "dolphin_generalsettings.h"
+#include "draganddrophelper.h"
+#include "selectionmanager.h"
+#include "zoomlevelinfo.h"
+
+#include <kcategorizedsortfilterproxymodel.h>
+#include <kdialog.h>
#include <kdirmodel.h>
-#include <kfileitem.h>
+#include <kfileitemdelegate.h>
+
+#include <QAbstractProxyModel>
+#include <QApplication>
+#include <QScrollBar>
-DolphinIconsView::DolphinIconsView(DolphinView* parent) :
- QListView(parent),
- m_parentView( parent )
+DolphinIconsView::DolphinIconsView(QWidget* parent, DolphinController* controller) :
+ KCategorizedView(parent),
+ m_enableScrollTo(false),
+ m_controller(controller),
+ m_selectionManager(0),
+ m_categoryDrawer(0),
+ m_font(),
+ m_decorationSize(),
+ m_decorationPosition(QStyleOptionViewItem::Top),
+ m_displayAlignment(Qt::AlignHCenter),
+ m_itemSize(),
+ m_dropRect()
{
- setResizeMode( QListView::Adjust );
+ Q_ASSERT(controller != 0);
+ setLayoutDirection(Qt::LeftToRight);
+ setViewMode(QListView::IconMode);
+ setResizeMode(QListView::Adjust);
+ setSpacing(KDialog::spacingHint());
+ setMovement(QListView::Static);
+ setDragEnabled(true);
+ setEditTriggers(QAbstractItemView::NoEditTriggers);
+ viewport()->setAcceptDrops(true);
+
+ setMouseTracking(true);
+
+ // 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' and to handle the
+ // RETURN-key in keyPressEvent().
+ 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&)));
+ }
+
+ if (DolphinSettings::instance().generalSettings()->showSelectionToggle()) {
+ m_selectionManager = new SelectionManager(this);
+ connect(m_selectionManager, SIGNAL(selectionChanged()),
+ this, SLOT(requestActivation()));
+ connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
+ m_selectionManager, SLOT(reset()));
+ }
+
+ connect(this, SIGNAL(entered(const QModelIndex&)),
+ controller, SLOT(emitItemEntered(const QModelIndex&)));
+ connect(this, SIGNAL(viewportEntered()),
+ controller, SLOT(emitViewportEntered()));
+ connect(controller, SIGNAL(zoomLevelChanged(int)),
+ this, SLOT(setZoomLevel(int)));
+
+ const DolphinView* view = controller->dolphinView();
+ connect(view, SIGNAL(showPreviewChanged()),
+ this, SLOT(slotShowPreviewChanged()));
+ connect(view, SIGNAL(additionalInfoChanged()),
+ this, SLOT(slotAdditionalInfoChanged()));
+
+ // apply the icons mode settings to the widget
+ const IconsModeSettings* settings = DolphinSettings::instance().iconsModeSettings();
+ Q_ASSERT(settings != 0);
+
+ if (settings->useSystemFont()) {
+ m_font = KGlobalSettings::generalFont();
+ } else {
+ m_font = QFont(settings->fontFamily(),
+ settings->fontSize(),
+ settings->fontWeight(),
+ settings->italicFont());
+ }
+
+ setWordWrap(settings->numberOfTextlines() > 1);
+ updateGridSize(view->showPreview(), 0);
+
+ if (settings->arrangement() == QListView::TopToBottom) {
+ setFlow(QListView::LeftToRight);
+ m_decorationPosition = QStyleOptionViewItem::Top;
+ m_displayAlignment = Qt::AlignHCenter;
+ } else {
+ setFlow(QListView::TopToBottom);
+ m_decorationPosition = QStyleOptionViewItem::Left;
+ m_displayAlignment = Qt::AlignLeft | Qt::AlignVCenter;
+ }
+
+ m_categoryDrawer = new DolphinCategoryDrawer();
+ setCategoryDrawer(m_categoryDrawer);
+
+ setFocus();
+
+ connect(KGlobalSettings::self(), SIGNAL(kdisplayFontChanged()),
+ this, SLOT(updateFont()));
}
DolphinIconsView::~DolphinIconsView()
{
+ delete m_categoryDrawer;
+ m_categoryDrawer = 0;
+}
+
+void DolphinIconsView::scrollTo(const QModelIndex& index, ScrollHint hint)
+{
+ // Enable the QListView implementation of scrollTo() only if it has been
+ // triggered by a key press. Otherwise QAbstractItemView wants to scroll to the current
+ // index each time the layout has been changed. This becomes an issue when
+ // previews are loaded and the scrollbar is used: the scrollbar will always
+ // be reset to 0 on each new preview.
+ if (m_enableScrollTo || (state() != QAbstractItemView::NoState)) {
+ KCategorizedView::scrollTo(index, hint);
+ m_enableScrollTo = false;
+ }
+}
+
+void DolphinIconsView::dataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight)
+{
+ KCategorizedView::dataChanged(topLeft, bottomRight);
+
+ KCategorizedSortFilterProxyModel* proxyModel = dynamic_cast<KCategorizedSortFilterProxyModel*>(model());
+ if ((flow() == QListView::LeftToRight) && !proxyModel->isCategorizedModel()) {
+ // bypass a QListView issue that items are not layout correctly if the decoration size of
+ // an index changes
+ scheduleDelayedItemsLayout();
+ }
+}
+
+QStyleOptionViewItem DolphinIconsView::viewOptions() const
+{
+ QStyleOptionViewItem viewOptions = KCategorizedView::viewOptions();
+ viewOptions.font = m_font;
+ viewOptions.decorationPosition = m_decorationPosition;
+ viewOptions.decorationSize = m_decorationSize;
+ viewOptions.displayAlignment = m_displayAlignment;
+ viewOptions.showDecorationSelected = true;
+ return viewOptions;
+}
+
+void DolphinIconsView::contextMenuEvent(QContextMenuEvent* event)
+{
+ KCategorizedView::contextMenuEvent(event);
+ m_controller->triggerContextMenuRequest(event->pos());
}
void DolphinIconsView::mousePressEvent(QMouseEvent* event)
{
- QListView::mousePressEvent(event);
+ m_controller->requestActivation();
+ const QModelIndex index = indexAt(event->pos());
+ if (index.isValid() && (event->button() == Qt::LeftButton)) {
+ // TODO: It should not be necessary to manually set the dragging state, but I could
+ // not reproduce this issue with a Qt-only example yet to find the root cause.
+ // Issue description: start Dolphin, split the view and drag an item from the
+ // inactive view to the active view by a very fast mouse movement. Result:
+ // the item gets selected instead of being dragged...
+ setState(QAbstractItemView::DraggingState);
+ }
- if (event->button() != Qt::RightButton) {
- return;
+ if (!index.isValid()) {
+ if (QApplication::mouseButtons() & Qt::MidButton) {
+ m_controller->replaceUrlByClipboard();
+ }
+ const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
+ if (!(modifier & Qt::ShiftModifier) && !(modifier & Qt::ControlModifier)) {
+ clearSelection();
+ }
+ }
+
+ KCategorizedView::mousePressEvent(event);
+}
+
+void DolphinIconsView::startDrag(Qt::DropActions supportedActions)
+{
+ // TODO: invoking KCategorizedView::startDrag() should not be necessary, we'll
+ // fix this in KDE 4.1
+ KCategorizedView::startDrag(supportedActions);
+ DragAndDropHelper::instance().startDrag(this, supportedActions, m_controller);
+}
+
+void DolphinIconsView::dragEnterEvent(QDragEnterEvent* event)
+{
+ if (DragAndDropHelper::instance().isMimeDataSupported(event->mimeData())) {
+ event->acceptProposedAction();
}
+}
- KFileItem* item = 0;
+void DolphinIconsView::dragLeaveEvent(QDragLeaveEvent* event)
+{
+ KCategorizedView::dragLeaveEvent(event);
+ setDirtyRegion(m_dropRect);
+}
+
+void DolphinIconsView::dragMoveEvent(QDragMoveEvent* event)
+{
+ KCategorizedView::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.setSize(QSize()); // set as invalid
if (index.isValid()) {
- KDirModel* dirModel = static_cast<KDirModel*>(model());
- item = dirModel->itemForIndex(index);
+ const KFileItem item = m_controller->itemForIndex(index);
+ if (!item.isNull() && item.isDir()) {
+ m_dropRect = visualRect(index);
+ } else {
+ m_dropRect.setSize(QSize()); // set as invalid
+ }
+ }
+ if (DragAndDropHelper::instance().isMimeDataSupported(event->mimeData())) {
+ // accept url drops, independently from the destination item
+ event->acceptProposedAction();
+ }
+
+ setDirtyRegion(m_dropRect);
+}
+
+void DolphinIconsView::dropEvent(QDropEvent* event)
+{
+ const QModelIndex index = indexAt(event->pos());
+ const KFileItem item = m_controller->itemForIndex(index);
+ m_controller->indicateDroppedUrls(item, m_controller->url(), event);
+
+ KCategorizedView::dropEvent(event);
+}
+
+void DolphinIconsView::keyPressEvent(QKeyEvent* event)
+{
+ KCategorizedView::keyPressEvent(event);
+ m_controller->handleKeyPressEvent(event);
+ m_enableScrollTo = true; // see DolphinIconsView::scrollTo()
+}
+
+void DolphinIconsView::wheelEvent(QWheelEvent* event)
+{
+ if (m_selectionManager != 0) {
+ m_selectionManager->reset();
+ }
+
+ // let Ctrl+wheel events propagate to the DolphinView for icon zooming
+ if (event->modifiers() & Qt::ControlModifier) {
+ event->ignore();
+ return;
+ }
+ KCategorizedView::wheelEvent(event);
+ // if the icons are aligned left to right, the vertical wheel event should
+ // be applied to the horizontal scrollbar
+ const IconsModeSettings* settings = DolphinSettings::instance().iconsModeSettings();
+ const bool scrollHorizontal = (event->orientation() == Qt::Vertical) &&
+ (settings->arrangement() == QListView::LeftToRight);
+ if (scrollHorizontal) {
+ QWheelEvent horizEvent(event->pos(),
+ event->delta(),
+ event->buttons(),
+ event->modifiers(),
+ Qt::Horizontal);
+ QApplication::sendEvent(horizontalScrollBar(), &horizEvent);
+ }
+}
+
+void DolphinIconsView::showEvent(QShowEvent* event)
+{
+ KFileItemDelegate* delegate = dynamic_cast<KFileItemDelegate*>(itemDelegate());
+ delegate->setMaximumSize(m_itemSize);
+
+ KCategorizedView::showEvent(event);
+}
+
+void DolphinIconsView::leaveEvent(QEvent* event)
+{
+ KCategorizedView::leaveEvent(event);
+ // if the mouse is above an item and moved very fast outside the widget,
+ // no viewportEntered() signal might be emitted although the mouse has been moved
+ // above the viewport
+ m_controller->emitViewportEntered();
+}
+
+void DolphinIconsView::slotShowPreviewChanged()
+{
+ const DolphinView* view = m_controller->dolphinView();
+ updateGridSize(view->showPreview(), additionalInfoCount());
+}
+
+void DolphinIconsView::slotAdditionalInfoChanged()
+{
+ const DolphinView* view = m_controller->dolphinView();
+ const bool showPreview = view->showPreview();
+ updateGridSize(showPreview, view->additionalInfo().count());
+}
+
+void DolphinIconsView::setZoomLevel(int level)
+{
+ IconsModeSettings* settings = DolphinSettings::instance().iconsModeSettings();
+
+ const int oldIconSize = settings->iconSize();
+ int newIconSize = oldIconSize;
+
+ const bool showPreview = m_controller->dolphinView()->showPreview();
+ if (showPreview) {
+ const int previewSize = ZoomLevelInfo::iconSizeForZoomLevel(level);
+ settings->setPreviewSize(previewSize);
+ } else {
+ newIconSize = ZoomLevelInfo::iconSizeForZoomLevel(level);
+ settings->setIconSize(newIconSize);
+ }
+
+ // increase also the grid size
+ const int diff = newIconSize - oldIconSize;
+ settings->setItemWidth(settings->itemWidth() + diff);
+ settings->setItemHeight(settings->itemHeight() + diff);
+
+ updateGridSize(showPreview, additionalInfoCount());
+}
+
+void DolphinIconsView::requestActivation()
+{
+ m_controller->requestActivation();
+}
+
+void DolphinIconsView::updateFont()
+{
+ const IconsModeSettings* settings = DolphinSettings::instance().iconsModeSettings();
+ Q_ASSERT(settings != 0);
+
+ if (settings->useSystemFont()) {
+ m_font = KGlobalSettings::generalFont();
+ }
+}
+
+void DolphinIconsView::updateGridSize(bool showPreview, int additionalInfoCount)
+{
+ const IconsModeSettings* settings = DolphinSettings::instance().iconsModeSettings();
+ Q_ASSERT(settings != 0);
+
+ int itemWidth = settings->itemWidth();
+ int itemHeight = settings->itemHeight();
+ int size = settings->iconSize();
+
+ if (showPreview) {
+ const int previewSize = settings->previewSize();
+ const int diff = previewSize - size;
+ itemWidth += diff;
+ itemHeight += diff;
+
+ size = previewSize;
+ }
+
+ Q_ASSERT(additionalInfoCount >= 0);
+ itemHeight += additionalInfoCount * m_font.pointSize() * 2;
+
+ if (settings->arrangement() == QListView::TopToBottom) {
+ // The decoration width indirectly defines the maximum
+ // width for the text wrapping. To use the maximum item width
+ // for text wrapping, it is used as decoration width.
+ m_decorationSize = QSize(itemWidth, size);
+ setIconSize(QSize(itemWidth, size));
+ } else {
+ m_decorationSize = QSize(size, size);
+ setIconSize(QSize(size, size));
}
- m_parentView->openContextMenu(item, event->globalPos());
+ m_itemSize = QSize(itemWidth, itemHeight);
+
+ const int spacing = settings->gridSpacing();
+ setGridSize(QSize(itemWidth + spacing * 2, itemHeight + spacing));
+
+ KFileItemDelegate* delegate = dynamic_cast<KFileItemDelegate*>(itemDelegate());
+ if (delegate != 0) {
+ delegate->setMaximumSize(m_itemSize);
+ }
+
+ if (m_selectionManager != 0) {
+ m_selectionManager->reset();
+ }
}
-void DolphinIconsView::mouseReleaseEvent(QMouseEvent* event)
+int DolphinIconsView::additionalInfoCount() const
{
- QListView::mouseReleaseEvent(event);
- m_parentView->declareViewActive();
+ const DolphinView* view = m_controller->dolphinView();
+ return view->additionalInfo().count();
}
#include "dolphiniconsview.moc"
projects / dolphin.git / blobdiff