]> cloud.milkyroute.net Git - dolphin.git/blobdiff - src/dolphiniconsview.cpp
Move code for initializing and handling view extensions to the new class ViewExtensio...
[dolphin.git] / src / dolphiniconsview.cpp
index f32ecbd3df57e6b39d251999803283cd948e6aba..b07ce5a0460db60f37a96c630d013fd6e5cfcd70 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 "dolphincategorydrawer.h"
 #include "dolphincontroller.h"
-#include "dolphinsettings.h"
+#include "settings/dolphinsettings.h"
+#include "dolphinsortfilterproxymodel.h"
 #include "dolphinviewautoscroller.h"
 #include "dolphin_iconsmodesettings.h"
 #include "dolphin_generalsettings.h"
 #include "draganddrophelper.h"
 #include "selectionmanager.h"
+#include "viewextensionsfactory.h"
 #include "zoomlevelinfo.h"
 
 #include <kcategorizedsortfilterproxymodel.h>
 #include <QApplication>
 #include <QScrollBar>
 
-DolphinIconsView::DolphinIconsView(QWidget* parent, DolphinController* controller) :
+DolphinIconsView::DolphinIconsView(QWidget* parent,
+                                   DolphinController* controller,
+                                   DolphinSortFilterProxyModel* proxyModel) :
     KCategorizedView(parent),
-    m_enableScrollTo(false),
     m_controller(controller),
     m_selectionManager(0),
     m_autoScroller(0),
     m_categoryDrawer(0),
+    m_extensionsFactory(0),
     m_font(),
     m_decorationSize(),
     m_decorationPosition(QStyleOptionViewItem::Top),
@@ -53,6 +57,7 @@ DolphinIconsView::DolphinIconsView(QWidget* parent, DolphinController* controlle
     m_dropRect()
 {
     Q_ASSERT(controller != 0);
+    setModel(proxyModel);
     setLayoutDirection(Qt::LeftToRight);
     setViewMode(QListView::IconMode);
     setResizeMode(QListView::Adjust);
@@ -86,6 +91,8 @@ DolphinIconsView::DolphinIconsView(QWidget* parent, DolphinController* controlle
             controller, SLOT(emitItemEntered(const QModelIndex&)));
     connect(this, SIGNAL(viewportEntered()),
             controller, SLOT(emitViewportEntered()));
+    connect(controller, SIGNAL(nameFilterChanged(const QString&)),
+            this, SLOT(setNameFilter(const QString&)));
     connect(controller, SIGNAL(zoomLevelChanged(int)),
             this, SLOT(setZoomLevel(int)));
 
@@ -126,8 +133,10 @@ DolphinIconsView::DolphinIconsView(QWidget* parent, DolphinController* controlle
 
     setFocus();
 
-    connect(KGlobalSettings::self(), SIGNAL(kdisplayFontChanged()),
-            this, SLOT(updateFont()));
+    connect(KGlobalSettings::self(), SIGNAL(settingsChanged(int)),
+            this, SLOT(slotGlobalSettingsChanged(int)));
+
+    m_extensionsFactory = new ViewExtensionsFactory(this, controller);
 }
 
 DolphinIconsView::~DolphinIconsView()
@@ -136,19 +145,6 @@ DolphinIconsView::~DolphinIconsView()
     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);
@@ -206,9 +202,6 @@ 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);
 }
 
@@ -221,14 +214,12 @@ void DolphinIconsView::dragEnterEvent(QDragEnterEvent* event)
 
 void DolphinIconsView::dragLeaveEvent(QDragLeaveEvent* event)
 {
-    KCategorizedView::dragLeaveEvent(event);
+    Q_UNUSED(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);
@@ -255,13 +246,83 @@ 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);
+}
+
+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)
 {
-    m_enableScrollTo = true; // see DolphinIconsView::scrollTo()
     KCategorizedView::keyPressEvent(event);
     m_controller->handleKeyPressEvent(event);
 }
@@ -317,9 +378,7 @@ void DolphinIconsView::leaveEvent(QEvent* event)
 void DolphinIconsView::currentChanged(const QModelIndex& current, const QModelIndex& previous)
 {
     KCategorizedView::currentChanged(current, previous);
-    if (current.isValid() && !m_autoScroller->isActive()) {
-        scrollTo(current);
-    }
+    m_autoScroller->handleCurrentIndexChange(current, previous);
 }
 
 void DolphinIconsView::resizeEvent(QResizeEvent* event)
@@ -342,6 +401,12 @@ void DolphinIconsView::slotAdditionalInfoChanged()
     updateGridSize(showPreview, view->additionalInfo().count());
 }
 
+void DolphinIconsView::setNameFilter(const QString& nameFilter)
+{
+    DolphinSortFilterProxyModel* proxyModel = static_cast<DolphinSortFilterProxyModel*>(model());
+    proxyModel->setFilterRegExp(nameFilter);
+}
+
 void DolphinIconsView::setZoomLevel(int level)
 {
     IconsModeSettings* settings = DolphinSettings::instance().iconsModeSettings();
@@ -371,14 +436,23 @@ void DolphinIconsView::requestActivation()
     m_controller->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_controller, SLOT(triggerItem(QModelIndex)));
+    disconnect(this, SIGNAL(doubleClicked(QModelIndex)), m_controller, SLOT(triggerItem(QModelIndex)));
+    if (KGlobalSettings::singleClick()) {
+        connect(this, SIGNAL(clicked(QModelIndex)), m_controller, SLOT(triggerItem(QModelIndex)));
+    } else {
+        connect(this, SIGNAL(doubleClicked(QModelIndex)), m_controller, SLOT(triggerItem(QModelIndex)));
+    }
 }
 
 void DolphinIconsView::updateGridSize(bool showPreview, int additionalInfoCount)
@@ -402,12 +476,20 @@ 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)
+    // 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 +502,9 @@ 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) {
@@ -433,7 +516,7 @@ 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) {