/***************************************************************************
- * 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"
-DolphinIconsView::DolphinIconsView(DolphinView* parent) :
- QListView(parent)
+#include "dolphincategorydrawer.h"
+#include "dolphincontroller.h"
+#include "dolphinsettings.h"
+#include "dolphin_iconsmodesettings.h"
+#include "draganddrophelper.h"
+
+#include <kcategorizedsortfilterproxymodel.h>
+#include <kdialog.h>
+#include <kdirmodel.h>
+
+#include <QAbstractProxyModel>
+#include <QApplication>
+#include <QPainter>
+#include <QPoint>
+
+DolphinIconsView::DolphinIconsView(QWidget* parent, DolphinController* controller) :
+ KCategorizedView(parent),
+ m_controller(controller),
+ m_categoryDrawer(0),
+ m_itemSize(),
+ m_dragging(false),
+ m_dropRect()
{
+ Q_ASSERT(controller != 0);
+ setViewMode(QListView::IconMode);
+ setResizeMode(QListView::Adjust);
+ setSpacing(KDialog::spacingHint());
+ setMovement(QListView::Static);
+ setDragEnabled(true);
+ viewport()->setAcceptDrops(true);
+
+ setMouseTracking(true);
+ viewport()->setAttribute(Qt::WA_Hover);
+
+ // 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&)),
+ this, SLOT(triggerItem(const QModelIndex&)));
+ } else {
+ connect(this, SIGNAL(doubleClicked(const QModelIndex&)),
+ this, SLOT(triggerItem(const QModelIndex&)));
+ }
+ connect(this, SIGNAL(viewportEntered()),
+ controller, SLOT(emitViewportEntered()));
+ connect(controller, SIGNAL(zoomIn()),
+ this, SLOT(zoomIn()));
+ connect(controller, SIGNAL(zoomOut()),
+ this, SLOT(zoomOut()));
+
+ const DolphinView* view = controller->dolphinView();
+ connect(view, SIGNAL(showPreviewChanged()),
+ this, SLOT(slotShowPreviewChanged()));
+ connect(view, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
+ this, SLOT(slotAdditionalInfoChanged(const KFileItemDelegate::InformationList&)));
+
+ connect(this, SIGNAL(entered(const QModelIndex&)),
+ this, SLOT(slotEntered(const QModelIndex&)));
+
+ // apply the icons mode settings to the widget
+ const IconsModeSettings* settings = DolphinSettings::instance().iconsModeSettings();
+ Q_ASSERT(settings != 0);
+
+ m_viewOptions = KCategorizedView::viewOptions();
+ m_viewOptions.showDecorationSelected = true;
+
+ QFont font(settings->fontFamily(), settings->fontSize());
+ font.setItalic(settings->italicFont());
+ font.setBold(settings->boldFont());
+ m_viewOptions.font = font;
+
+ setWordWrap(settings->numberOfTextlines() > 1);
+ updateGridSize(view->showPreview(), 0);
+
+ if (settings->arrangement() == QListView::TopToBottom) {
+ setFlow(QListView::LeftToRight);
+ m_viewOptions.decorationPosition = QStyleOptionViewItem::Top;
+ } else {
+ setFlow(QListView::TopToBottom);
+ m_viewOptions.decorationPosition = QStyleOptionViewItem::Left;
+ m_viewOptions.displayAlignment = Qt::AlignLeft | Qt::AlignVCenter;
+ }
+
+ m_categoryDrawer = new DolphinCategoryDrawer();
+ setCategoryDrawer(m_categoryDrawer);
+
+ setFocus();
}
DolphinIconsView::~DolphinIconsView()
{
+ delete m_categoryDrawer;
+ m_categoryDrawer = 0;
+}
+
+QRect DolphinIconsView::visualRect(const QModelIndex& index) const
+{
+ const bool leftToRightFlow = (flow() == QListView::LeftToRight);
+
+ QRect itemRect = KCategorizedView::visualRect(index);
+ const int maxWidth = m_itemSize.width();
+ const int maxHeight = m_itemSize.height();
+
+ if (itemRect.width() > maxWidth) {
+ // assure that the maximum item width is not exceeded
+ if (leftToRightFlow) {
+ const int left = itemRect.left() + (itemRect.width() - maxWidth) / 2;
+ itemRect.setLeft(left);
+ }
+ itemRect.setWidth(maxWidth);
+ }
+
+ if (itemRect.height() > maxHeight) {
+ // assure that the maximum item height is not exceeded
+ if (!leftToRightFlow) {
+ const int top = itemRect.top() + (itemRect.height() - maxHeight) / 2;
+ itemRect.setTop(top);
+ }
+ itemRect.setHeight(maxHeight);
+ }
+
+ KCategorizedSortFilterProxyModel* proxyModel = dynamic_cast<KCategorizedSortFilterProxyModel*>(model());
+ if (leftToRightFlow && !proxyModel->isCategorizedModel()) {
+ // TODO: QListView::visualRect() calculates a wrong position of the items under
+ // certain circumstances (e. g. if the text is too long). This issue is bypassed
+ // by the following code (I'll try create a patch for Qt but as Dolphin must also work with
+ // Qt 4.3.0 this workaround must get applied at least for KDE 4.0).
+ const IconsModeSettings* settings = DolphinSettings::instance().iconsModeSettings();
+ const int margin = settings->gridSpacing();
+ const int gridWidth = gridSize().width();
+ const int gridIndex = (itemRect.left() - margin + 1) / gridWidth;
+ itemRect.moveLeft(gridIndex * gridWidth + margin);
+ }
+
+ return itemRect;
+}
+
+QStyleOptionViewItem DolphinIconsView::viewOptions() const
+{
+ return m_viewOptions;
+}
+
+void DolphinIconsView::contextMenuEvent(QContextMenuEvent* event)
+{
+ KCategorizedView::contextMenuEvent(event);
+ m_controller->triggerContextMenuRequest(event->pos());
+}
+
+void DolphinIconsView::mousePressEvent(QMouseEvent* event)
+{
+ m_controller->requestActivation();
+ if (!indexAt(event->pos()).isValid()) {
+ 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::startDrag(this, supportedActions);
+}
+
+void DolphinIconsView::dragEnterEvent(QDragEnterEvent* event)
+{
+ if (event->mimeData()->hasUrls()) {
+ event->acceptProposedAction();
+ }
+ m_dragging = true;
+}
+
+void DolphinIconsView::dragLeaveEvent(QDragLeaveEvent* event)
+{
+ KCategorizedView::dragLeaveEvent(event);
+
+ // TODO: remove this code when the issue #160611 is solved in Qt 4.4
+ m_dragging = false;
+ 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);
+ if (itemForIndex(index).isDir()) {
+ m_dropRect = visualRect(index);
+ } else {
+ m_dropRect.setSize(QSize()); // set as invalid
+ }
+ setDirtyRegion(m_dropRect);
+}
+
+void DolphinIconsView::dropEvent(QDropEvent* event)
+{
+ if (!selectionModel()->isSelected(indexAt(event->pos()))) {
+ const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
+ if (!urls.isEmpty()) {
+ const QModelIndex index = indexAt(event->pos());
+ const KFileItem item = itemForIndex(index);
+ m_controller->indicateDroppedUrls(urls,
+ m_controller->url(),
+ item);
+ event->acceptProposedAction();
+ }
+ }
+
+ KCategorizedView::dropEvent(event);
+
+ m_dragging = false;
+}
+
+void DolphinIconsView::paintEvent(QPaintEvent* event)
+{
+ KCategorizedView::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);
+ DragAndDropHelper::drawHoverIndication(viewport(), m_dropRect, brush);
+ }
+}
+
+void DolphinIconsView::keyPressEvent(QKeyEvent* event)
+{
+ KCategorizedView::keyPressEvent(event);
+
+ const QItemSelectionModel* selModel = selectionModel();
+ const QModelIndex currentIndex = selModel->currentIndex();
+ const bool trigger = currentIndex.isValid()
+ && (event->key() == Qt::Key_Return)
+ && (selModel->selectedIndexes().count() <= 1);
+ if (trigger) {
+ triggerItem(currentIndex);
+ }
+}
+
+void DolphinIconsView::triggerItem(const QModelIndex& index)
+{
+ m_controller->triggerItem(itemForIndex(index));
+}
+
+void DolphinIconsView::slotEntered(const QModelIndex& index)
+{
+ m_controller->emitItemEntered(itemForIndex(index));
+}
+
+void DolphinIconsView::slotShowPreviewChanged()
+{
+ const DolphinView* view = m_controller->dolphinView();
+ const int infoCount = view->additionalInfo().count();
+ updateGridSize(view->showPreview(), infoCount);
+}
+
+void DolphinIconsView::slotAdditionalInfoChanged(const KFileItemDelegate::InformationList& info)
+{
+ const bool showPreview = m_controller->dolphinView()->showPreview();
+ updateGridSize(showPreview, info.count());
+}
+
+void DolphinIconsView::zoomIn()
+{
+ if (isZoomInPossible()) {
+ 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 = increasedIconSize(settings->previewSize());
+ settings->setPreviewSize(previewSize);
+ } else {
+ newIconSize = increasedIconSize(oldIconSize);
+ settings->setIconSize(newIconSize);
+ if (settings->previewSize() < newIconSize) {
+ // assure that the preview size is always >= the icon size
+ settings->setPreviewSize(newIconSize);
+ }
+ }
+
+ // increase also the grid size
+ const int diff = newIconSize - oldIconSize;
+ settings->setItemWidth(settings->itemWidth() + diff);
+ settings->setItemHeight(settings->itemHeight() + diff);
+
+ const int infoCount = m_controller->dolphinView()->additionalInfo().count();
+ updateGridSize(showPreview, infoCount);
+ }
+}
+
+void DolphinIconsView::zoomOut()
+{
+ if (isZoomOutPossible()) {
+ 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 = decreasedIconSize(settings->previewSize());
+ settings->setPreviewSize(previewSize);
+ if (settings->iconSize() > previewSize) {
+ // assure that the icon size is always <= the preview size
+ newIconSize = previewSize;
+ settings->setIconSize(newIconSize);
+ }
+ } else {
+ newIconSize = decreasedIconSize(settings->iconSize());
+ settings->setIconSize(newIconSize);
+ }
+
+ // decrease also the grid size
+ const int diff = oldIconSize - newIconSize;
+ settings->setItemWidth(settings->itemWidth() - diff);
+ settings->setItemHeight(settings->itemHeight() - diff);
+
+ const int infoCount = m_controller->dolphinView()->additionalInfo().count();
+ updateGridSize(showPreview, infoCount);
+ }
+}
+
+bool DolphinIconsView::isZoomInPossible() const
+{
+ IconsModeSettings* settings = DolphinSettings::instance().iconsModeSettings();
+ const bool showPreview = m_controller->dolphinView()->showPreview();
+ const int size = showPreview ? settings->previewSize() : settings->iconSize();
+ return size < KIconLoader::SizeEnormous;
+}
+
+bool DolphinIconsView::isZoomOutPossible() const
+{
+ IconsModeSettings* settings = DolphinSettings::instance().iconsModeSettings();
+ const bool showPreview = m_controller->dolphinView()->showPreview();
+ const int size = showPreview ? settings->previewSize() : settings->iconSize();
+ return size > KIconLoader::SizeSmall;
+}
+
+int DolphinIconsView::increasedIconSize(int size) const
+{
+ int incSize = 0;
+ switch (size) {
+ case KIconLoader::SizeSmall: incSize = KIconLoader::SizeSmallMedium; break;
+ case KIconLoader::SizeSmallMedium: incSize = KIconLoader::SizeMedium; break;
+ case KIconLoader::SizeMedium: incSize = KIconLoader::SizeLarge; break;
+ case KIconLoader::SizeLarge: incSize = KIconLoader::SizeHuge; break;
+ case KIconLoader::SizeHuge: incSize = KIconLoader::SizeEnormous; break;
+ default: Q_ASSERT(false); break;
+ }
+ return incSize;
+}
+
+int DolphinIconsView::decreasedIconSize(int size) const
+{
+ int decSize = 0;
+ switch (size) {
+ case KIconLoader::SizeSmallMedium: decSize = KIconLoader::SizeSmall; break;
+ case KIconLoader::SizeMedium: decSize = KIconLoader::SizeSmallMedium; break;
+ case KIconLoader::SizeLarge: decSize = KIconLoader::SizeMedium; break;
+ case KIconLoader::SizeHuge: decSize = KIconLoader::SizeLarge; break;
+ case KIconLoader::SizeEnormous: decSize = KIconLoader::SizeHuge; break;
+ default: Q_ASSERT(false); break;
+ }
+ return decSize;
+}
+
+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;
+ Q_ASSERT(diff >= 0);
+ itemWidth += diff;
+ itemHeight += diff;
+
+ size = previewSize;
+ }
+
+ Q_ASSERT(additionalInfoCount >= 0);
+ itemHeight += additionalInfoCount * m_viewOptions.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_viewOptions.decorationSize = QSize(itemWidth, size);
+ } else {
+ m_viewOptions.decorationSize = QSize(size, size);
+ }
+
+ const int spacing = settings->gridSpacing();
+ setGridSize(QSize(itemWidth + spacing * 2, itemHeight + spacing));
+
+ m_itemSize = QSize(itemWidth, itemHeight);
+
+ m_controller->setZoomInPossible(isZoomInPossible());
+ m_controller->setZoomOutPossible(isZoomOutPossible());
+}
+
+KFileItem DolphinIconsView::itemForIndex(const QModelIndex& index) const
+{
+ QAbstractProxyModel* proxyModel = static_cast<QAbstractProxyModel*>(model());
+ KDirModel* dirModel = static_cast<KDirModel*>(proxyModel->sourceModel());
+ const QModelIndex dirIndex = proxyModel->mapToSource(index);
+ return dirModel->itemForIndex(dirIndex);
}
#include "dolphiniconsview.moc"
projects / dolphin.git / blobdiff