]> cloud.milkyroute.net Git - dolphin.git/blobdiff - src/dolphiniconsview.cpp
Increase version number to 1.5
[dolphin.git] / src / dolphiniconsview.cpp
index 4b886f2222b540f277f8545344b69ca91815fb2e..636bdd66c1ac4d7e9e87b6367a3b15a2f407ebf2 100644 (file)
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2006 by Peter Penz (peter.penz@gmx.at)                  *
+ *   Copyright (C) 2006-2009 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  *
 #include "dolphiniconsview.h"
 
 #include "dolphincategorydrawer.h"
-#include "dolphincontroller.h"
-#include "dolphinsettings.h"
-#include "dolphinviewautoscroller.h"
+#include "dolphinviewcontroller.h"
+#include "settings/dolphinsettings.h"
+#include "dolphinsortfilterproxymodel.h"
 #include "dolphin_iconsmodesettings.h"
 #include "dolphin_generalsettings.h"
 #include "draganddrophelper.h"
 #include "selectionmanager.h"
+#include "viewextensionsfactory.h"
+#include "viewmodecontroller.h"
 #include "zoomlevelinfo.h"
 
 #include <kcategorizedsortfilterproxymodel.h>
 #include <kdialog.h>
-#include <kdirmodel.h>
 #include <kfileitemdelegate.h>
 
 #include <QAbstractProxyModel>
 #include <QApplication>
 #include <QScrollBar>
 
-DolphinIconsView::DolphinIconsView(QWidget* parent, DolphinController* controller) :
+DolphinIconsView::DolphinIconsView(QWidget* parent,
+                                   DolphinViewController* dolphinViewController,
+                                   const ViewModeController* viewModeController,
+                                   DolphinSortFilterProxyModel* proxyModel) :
     KCategorizedView(parent),
-    m_enableScrollTo(false),
-    m_controller(controller),
-    m_selectionManager(0),
-    m_autoScroller(0),
-    m_categoryDrawer(0),
+    m_dolphinViewController(dolphinViewController),
+    m_viewModeController(viewModeController),
+    m_categoryDrawer(new DolphinCategoryDrawer(this)),
+    m_extensionsFactory(0),
     m_font(),
     m_decorationSize(),
     m_decorationPosition(QStyleOptionViewItem::Top),
@@ -52,7 +55,10 @@ DolphinIconsView::DolphinIconsView(QWidget* parent, DolphinController* controlle
     m_itemSize(),
     m_dropRect()
 {
-    Q_ASSERT(controller != 0);
+    Q_ASSERT(dolphinViewController != 0);
+    Q_ASSERT(viewModeController != 0);
+
+    setModel(proxyModel);
     setLayoutDirection(Qt::LeftToRight);
     setViewMode(QListView::IconMode);
     setResizeMode(QListView::Adjust);
@@ -62,34 +68,25 @@ DolphinIconsView::DolphinIconsView(QWidget* parent, DolphinController* controlle
     viewport()->setAcceptDrops(true);
 
     setMouseTracking(true);
-    m_autoScroller = new DolphinViewAutoScroller(this);
 
     connect(this, SIGNAL(clicked(const QModelIndex&)),
-            controller, SLOT(requestTab(const QModelIndex&)));
+            dolphinViewController, SLOT(requestTab(const QModelIndex&)));
     if (KGlobalSettings::singleClick()) {
         connect(this, SIGNAL(clicked(const QModelIndex&)),
-                controller, SLOT(triggerItem(const QModelIndex&)));
+                dolphinViewController, 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()));
+                dolphinViewController, SLOT(triggerItem(const QModelIndex&)));
     }
 
     connect(this, SIGNAL(entered(const QModelIndex&)),
-            controller, SLOT(emitItemEntered(const QModelIndex&)));
+            dolphinViewController, SLOT(emitItemEntered(const QModelIndex&)));
     connect(this, SIGNAL(viewportEntered()),
-            controller, SLOT(emitViewportEntered()));
-    connect(controller, SIGNAL(zoomLevelChanged(int)),
+            dolphinViewController, SLOT(emitViewportEntered()));
+    connect(viewModeController, SIGNAL(zoomLevelChanged(int)),
             this, SLOT(setZoomLevel(int)));
 
-    const DolphinView* view = controller->dolphinView();
+    const DolphinView* view = dolphinViewController->view();
     connect(view, SIGNAL(showPreviewChanged()),
             this, SLOT(slotShowPreviewChanged()));
     connect(view, SIGNAL(additionalInfoChanged()),
@@ -103,13 +100,13 @@ DolphinIconsView::DolphinIconsView(QWidget* parent, DolphinController* controlle
         m_font = KGlobalSettings::generalFont();
     } else {
         m_font = QFont(settings->fontFamily(),
-                       settings->fontSize(),
+                       qRound(settings->fontSize()),
                        settings->fontWeight(),
                        settings->italicFont());
+        m_font.setPointSizeF(settings->fontSize());
     }
 
     setWordWrap(settings->numberOfTextlines() > 1);
-    updateGridSize(view->showPreview(), 0);
 
     if (settings->arrangement() == QListView::TopToBottom) {
         setFlow(QListView::LeftToRight);
@@ -121,32 +118,20 @@ DolphinIconsView::DolphinIconsView(QWidget* parent, DolphinController* controlle
         m_displayAlignment = Qt::AlignLeft | Qt::AlignVCenter;
     }
 
-    m_categoryDrawer = new DolphinCategoryDrawer();
+    connect(m_categoryDrawer, SIGNAL(actionRequested(int,QModelIndex)), this, SLOT(categoryDrawerActionRequested(int,QModelIndex)));
     setCategoryDrawer(m_categoryDrawer);
 
     setFocus();
 
-    connect(KGlobalSettings::self(), SIGNAL(kdisplayFontChanged()),
-            this, SLOT(updateFont()));
-}
+    connect(KGlobalSettings::self(), SIGNAL(settingsChanged(int)),
+            this, SLOT(slotGlobalSettingsChanged(int)));
 
-DolphinIconsView::~DolphinIconsView()
-{
-    delete m_categoryDrawer;
-    m_categoryDrawer = 0;
+    updateGridSize(view->showPreview(), 0);
+    m_extensionsFactory = new ViewExtensionsFactory(this, dolphinViewController, viewModeController);
 }
 
-void DolphinIconsView::scrollTo(const QModelIndex& index, ScrollHint hint)
+DolphinIconsView::~DolphinIconsView()
 {
-    // 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)
@@ -165,6 +150,7 @@ QStyleOptionViewItem DolphinIconsView::viewOptions() const
 {
     QStyleOptionViewItem viewOptions = KCategorizedView::viewOptions();
     viewOptions.font = m_font;
+    viewOptions.fontMetrics = QFontMetrics(m_font);
     viewOptions.decorationPosition = m_decorationPosition;
     viewOptions.decorationSize = m_decorationSize;
     viewOptions.displayAlignment = m_displayAlignment;
@@ -175,12 +161,12 @@ QStyleOptionViewItem DolphinIconsView::viewOptions() const
 void DolphinIconsView::contextMenuEvent(QContextMenuEvent* event)
 {
     KCategorizedView::contextMenuEvent(event);
-    m_controller->triggerContextMenuRequest(event->pos());
+    m_dolphinViewController->triggerContextMenuRequest(event->pos());
 }
 
 void DolphinIconsView::mousePressEvent(QMouseEvent* event)
 {
-    m_controller->requestActivation();
+    m_dolphinViewController->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
@@ -191,14 +177,8 @@ void DolphinIconsView::mousePressEvent(QMouseEvent* event)
         setState(QAbstractItemView::DraggingState);
     }
 
-    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();
-        }
+    if (!index.isValid() && (QApplication::mouseButtons() & Qt::MidButton)) {
+         m_dolphinViewController->replaceUrlByClipboard();
     }
 
     KCategorizedView::mousePressEvent(event);
@@ -206,10 +186,7 @@ void DolphinIconsView::mousePressEvent(QMouseEvent* 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);
+    DragAndDropHelper::instance().startDrag(this, supportedActions, m_dolphinViewController);
 }
 
 void DolphinIconsView::dragEnterEvent(QDragEnterEvent* event)
@@ -235,7 +212,7 @@ void DolphinIconsView::dragMoveEvent(QDragMoveEvent* event)
 
     m_dropRect.setSize(QSize()); // set as invalid
     if (index.isValid()) {
-        const KFileItem item = m_controller->itemForIndex(index);
+        const KFileItem item = m_dolphinViewController->itemForIndex(index);
         if (!item.isNull() && item.isDir()) {
             m_dropRect = visualRect(index);
         } else {
@@ -253,33 +230,95 @@ void DolphinIconsView::dragMoveEvent(QDragMoveEvent* event)
 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);
+    const KFileItem item = m_dolphinViewController->itemForIndex(index);
+    m_dolphinViewController->indicateDroppedUrls(item, m_viewModeController->url(), event);
+    // don't call KCategorizedView::dropEvent(event), as it moves
+    // the items which is not wanted
+}
+
+QModelIndex DolphinIconsView::moveCursor(CursorAction cursorAction, Qt::KeyboardModifiers modifiers)
+{
+    const QModelIndex oldCurrent = currentIndex();
+
+    QModelIndex newCurrent = KCategorizedView::moveCursor(cursorAction, modifiers);
+    if (newCurrent != oldCurrent) {
+        return newCurrent;
+    }
+
+    // The cursor has not been moved by the base implementation. Provide a
+    // wrap behavior, so that the cursor will go to the next item when reaching
+    // the border.
+    const IconsModeSettings* settings = DolphinSettings::instance().iconsModeSettings();
+    if (settings->arrangement() == QListView::LeftToRight) {
+        switch (cursorAction) {
+        case MoveUp:
+            if (newCurrent.row() == 0) {
+                return newCurrent;
+            }
+            newCurrent = KCategorizedView::moveCursor(MoveLeft, modifiers);
+            selectionModel()->setCurrentIndex(newCurrent, QItemSelectionModel::NoUpdate);
+            newCurrent = KCategorizedView::moveCursor(MovePageDown, modifiers);
+            break;
+
+        case MoveDown:
+            if (newCurrent.row() == (model()->rowCount() - 1)) {
+                return newCurrent;
+            }
+            newCurrent = KCategorizedView::moveCursor(MovePageUp, modifiers);
+            selectionModel()->setCurrentIndex(newCurrent, QItemSelectionModel::NoUpdate);
+            newCurrent = KCategorizedView::moveCursor(MoveRight, modifiers);
+            break;
+
+        default:
+            break;
+        }
+    } else {
+        QModelIndex current = oldCurrent;
+        switch (cursorAction) {
+        case MoveLeft:
+            if (newCurrent.row() == 0) {
+                return newCurrent;
+            }
+            newCurrent = KCategorizedView::moveCursor(MoveUp, modifiers);
+            do {
+                selectionModel()->setCurrentIndex(newCurrent, QItemSelectionModel::NoUpdate);
+                current = newCurrent;
+                newCurrent = KCategorizedView::moveCursor(MoveRight, modifiers);
+            } while (newCurrent != current);
+            break;
+
+        case MoveRight:
+            if (newCurrent.row() == (model()->rowCount() - 1)) {
+                return newCurrent;
+            }
+            do {
+                selectionModel()->setCurrentIndex(newCurrent, QItemSelectionModel::NoUpdate);
+                current = newCurrent;
+                newCurrent = KCategorizedView::moveCursor(MoveLeft, modifiers);
+            } while (newCurrent != current);
+            newCurrent = KCategorizedView::moveCursor(MoveDown, modifiers);
+            break;
+
+        default:
+            break;
+        }
+    }
 
-    KCategorizedView::dropEvent(event);
+    // Revert all changes of the current item to make sure that item selection works correctly
+    selectionModel()->setCurrentIndex(oldCurrent, QItemSelectionModel::NoUpdate);
+    return newCurrent;
 }
 
 void DolphinIconsView::keyPressEvent(QKeyEvent* event)
 {
     KCategorizedView::keyPressEvent(event);
-    m_controller->handleKeyPressEvent(event);
-    m_enableScrollTo = true; // see DolphinIconsView::scrollTo()
+    m_dolphinViewController->handleKeyPressEvent(event);
 }
 
 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;
-    }
-
-    horizontalScrollBar()->setSingleStep(m_itemSize.width() / 10);
-    verticalScrollBar()->setSingleStep(m_itemSize.height() / 10);
+    horizontalScrollBar()->setSingleStep(m_itemSize.width() / 5);
+    verticalScrollBar()->setSingleStep(m_itemSize.height() / 5);
 
     KCategorizedView::wheelEvent(event);
     // if the icons are aligned left to right, the vertical wheel event should
@@ -311,33 +350,31 @@ void DolphinIconsView::leaveEvent(QEvent* 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();
+    m_dolphinViewController->emitViewportEntered();
 }
 
 void DolphinIconsView::currentChanged(const QModelIndex& current, const QModelIndex& previous)
 {
     KCategorizedView::currentChanged(current, previous);
-    if (current.isValid() && !m_autoScroller->isActive()) {
-        scrollTo(current);
-    }
+    m_extensionsFactory->handleCurrentIndexChange(current, previous);
 }
 
 void DolphinIconsView::resizeEvent(QResizeEvent* event)
 {
     KCategorizedView::resizeEvent(event);
-    const DolphinView* view = m_controller->dolphinView();
+    const DolphinView* view = m_dolphinViewController->view();
     updateGridSize(view->showPreview(), view->additionalInfo().count());
 }
 
 void DolphinIconsView::slotShowPreviewChanged()
 {
-    const DolphinView* view = m_controller->dolphinView();
+    const DolphinView* view = m_dolphinViewController->view();
     updateGridSize(view->showPreview(), additionalInfoCount());
 }
 
 void DolphinIconsView::slotAdditionalInfoChanged()
 {
-    const DolphinView* view = m_controller->dolphinView();
+    const DolphinView* view = m_dolphinViewController->view();
     const bool showPreview = view->showPreview();
     updateGridSize(showPreview, view->additionalInfo().count());
 }
@@ -349,7 +386,7 @@ void DolphinIconsView::setZoomLevel(int level)
     const int oldIconSize = settings->iconSize();
     int newIconSize = oldIconSize;
 
-    const bool showPreview = m_controller->dolphinView()->showPreview();
+    const bool showPreview = m_dolphinViewController->view()->showPreview();
     if (showPreview) {
         const int previewSize = ZoomLevelInfo::iconSizeForZoomLevel(level);
         settings->setPreviewSize(previewSize);
@@ -368,17 +405,53 @@ void DolphinIconsView::setZoomLevel(int level)
 
 void DolphinIconsView::requestActivation()
 {
-    m_controller->requestActivation();
+    m_dolphinViewController->requestActivation();
 }
 
-void DolphinIconsView::updateFont()
+void DolphinIconsView::slotGlobalSettingsChanged(int category)
 {
+    Q_UNUSED(category);
+
     const IconsModeSettings* settings = DolphinSettings::instance().iconsModeSettings();
     Q_ASSERT(settings != 0);
-
     if (settings->useSystemFont()) {
         m_font = KGlobalSettings::generalFont();
     }
+
+    disconnect(this, SIGNAL(clicked(QModelIndex)), m_dolphinViewController, SLOT(triggerItem(QModelIndex)));
+    disconnect(this, SIGNAL(doubleClicked(QModelIndex)), m_dolphinViewController, SLOT(triggerItem(QModelIndex)));
+    if (KGlobalSettings::singleClick()) {
+        connect(this, SIGNAL(clicked(QModelIndex)), m_dolphinViewController, SLOT(triggerItem(QModelIndex)));
+    } else {
+        connect(this, SIGNAL(doubleClicked(QModelIndex)), m_dolphinViewController, SLOT(triggerItem(QModelIndex)));
+    }
+}
+
+void DolphinIconsView::categoryDrawerActionRequested(int action, const QModelIndex &index)
+{
+    const QSortFilterProxyModel *model = dynamic_cast<const QSortFilterProxyModel*>(index.model());
+    const QModelIndex topLeft = model->index(index.row(), modelColumn());
+    QModelIndex bottomRight = topLeft;
+    const QString category = model->data(index, KCategorizedSortFilterProxyModel::CategoryDisplayRole).toString();
+    QModelIndex current = topLeft;
+    while (true) {
+        current = model->index(current.row() + 1, modelColumn());
+        const QString curCategory = model->data(model->index(current.row(), index.column()), KCategorizedSortFilterProxyModel::CategoryDisplayRole).toString();
+        if (!current.isValid() || category != curCategory) {
+            break;
+        }
+        bottomRight = current;
+    }
+    switch (action) {
+        case DolphinCategoryDrawer::SelectAll:
+            selectionModel()->select(QItemSelection(topLeft, bottomRight), QItemSelectionModel::Select);
+            break;
+        case DolphinCategoryDrawer::UnselectAll:
+            selectionModel()->select(QItemSelection(topLeft, bottomRight), QItemSelectionModel::Deselect);
+            break;
+        default:
+            break;
+    }
 }
 
 void DolphinIconsView::updateGridSize(bool showPreview, int additionalInfoCount)
@@ -400,14 +473,22 @@ void DolphinIconsView::updateGridSize(bool showPreview, int additionalInfoCount)
     }
 
     Q_ASSERT(additionalInfoCount >= 0);
-    itemHeight += additionalInfoCount * m_font.pointSize() * 2;
-
-    // optimize the item size of the grid in a way to prevent large gaps on the
-    // right border (= row arrangement) or the bottom border (= column arrangement)
+    itemHeight += additionalInfoCount * QFontMetrics(m_font).height();
+
+    // Optimize the item size of the grid in a way to prevent large gaps on the
+    // right border (= row arrangement) or the bottom border (= column arrangement).
+    // There is no public API in QListView to find out the used width of the viewport
+    // for the layout. The following calculation of 'contentWidth'/'contentHeight'
+    // is based on QListViewPrivate::prepareItemsLayout() (Copyright (C) 2009 Nokia Corporation).
+    int frameAroundContents = 0;
+    if (style()->styleHint(QStyle::SH_ScrollView_FrameOnlyAroundContents)) {
+        frameAroundContents = style()->pixelMetric(QStyle::PM_DefaultFrameWidth) * 2;
+    }
     const int spacing = settings->gridSpacing();
     if (settings->arrangement() == QListView::TopToBottom) {
-        const int contentWidth = viewport()->width() - 1 -
-                                 style()->pixelMetric(QStyle::PM_ScrollBarExtent, 0, horizontalScrollBar());
+        const int contentWidth = viewport()->width() - 1
+                                 - frameAroundContents
+                                 - style()->pixelMetric(QStyle::PM_ScrollBarExtent, 0, horizontalScrollBar());
         const int gridWidth = itemWidth + spacing * 2;
         const int horizItemCount = contentWidth / gridWidth;
         if (horizItemCount > 0) {
@@ -420,8 +501,9 @@ void DolphinIconsView::updateGridSize(bool showPreview, int additionalInfoCount)
         m_decorationSize = QSize(itemWidth, size);
         setIconSize(QSize(itemWidth, size));
     } else {
-        const int contentHeight = viewport()->height() - 1 -
-                                  style()->pixelMetric(QStyle::PM_ScrollBarExtent, 0, verticalScrollBar());
+        const int contentHeight = viewport()->height() - 1
+                                  - frameAroundContents
+                                  - style()->pixelMetric(QStyle::PM_ScrollBarExtent, 0, verticalScrollBar());
         const int gridHeight = itemHeight + spacing;
         const int vertItemCount = contentHeight / gridHeight;
         if (vertItemCount > 0) {
@@ -433,21 +515,17 @@ void DolphinIconsView::updateGridSize(bool showPreview, int additionalInfoCount)
     }
 
     m_itemSize = QSize(itemWidth, itemHeight);
-    setGridSize(QSize(itemWidth + spacing * 2, itemHeight + spacing));
+    setGridSizeOwn(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();
-    }
 }
 
 int DolphinIconsView::additionalInfoCount() const
 {
-    const DolphinView* view = m_controller->dolphinView();
+    const DolphinView* view = m_dolphinViewController->view();
     return view->additionalInfo().count();
 }