Allow to optionally limit the maximum number of text lines

[dolphin.git] / src / views / dolphinitemlistcontainer.cpp

diff --git a/src/views/dolphinitemlistcontainer.cpp b/src/views/dolphinitemlistcontainer.cpp
index 7c32f982a839ada24d70ee8a8eab7e5300d17ff8..88e10d8a3a9b2d9bc4861ce7adce8dbbd0aab322 100644 (file)
--- a/src/views/dolphinitemlistcontainer.cpp
+++ b/src/views/dolphinitemlistcontainer.cpp
@@ -31,7 +31,6 @@
 #include <kitemviews/kitemlistcontroller.h>
 #include <kitemviews/kitemliststyleoption.h>
 
-#include <KDirLister>
 #include <KGlobalSettings>
 
 #include <views/viewmodecontroller.h>
@@ -39,19 +38,20 @@
 #include "zoomlevelinfo.h"
 
 
-DolphinItemListContainer::DolphinItemListContainer(KDirLister* dirLister,
-                                                   QWidget* parent) :
+DolphinItemListContainer::DolphinItemListContainer(QWidget* parent) :
     KItemListContainer(parent),
     m_zoomLevel(0),
     m_fileItemListView(0)
 {
-    controller()->setModel(new KFileItemModel(dirLister, this));
+    controller()->setModel(new KFileItemModel(this));
 
     m_fileItemListView = new KFileItemListView();
-    m_fileItemListView->setWidgetCreator(new KItemListWidgetCreator<DolphinFileItemListWidget>());    
-    m_fileItemListView->setEnabledSelectionToggles(GeneralSettings::showSelectionToggle());
     controller()->setView(m_fileItemListView);
 
+    m_fileItemListView->setWidgetCreator(new KItemListWidgetCreator<DolphinFileItemListWidget>());
+    m_fileItemListView->setEnabledSelectionToggles(GeneralSettings::showSelectionToggle());
+    m_fileItemListView->setEnlargeSmallPreviews(GeneralSettings::enlargeSmallPreviews());
+
     updateAutoActivationDelay();
     updateFont();
     updateGridSize();
@@ -59,9 +59,7 @@ DolphinItemListContainer::DolphinItemListContainer(KDirLister* dirLister,
 
 DolphinItemListContainer::~DolphinItemListContainer()
 {
-    IconsModeSettings::self()->writeConfig();
-    CompactModeSettings::self()->writeConfig();
-    DetailsModeSettings::self()->writeConfig();
+    writeSettings();
 
     controller()->setView(0);
     delete m_fileItemListView;
@@ -135,15 +133,19 @@ void DolphinItemListContainer::setItemLayout(KFileItemListView::Layout layout)
     switch (layout) {
     case KFileItemListView::IconsLayout:
         m_fileItemListView->setScrollOrientation(Qt::Vertical);
-        m_fileItemListView->setHeaderShown(false);
+        m_fileItemListView->setHeaderVisible(false);
+        m_fileItemListView->setSupportsItemExpanding(false);
         break;
     case KFileItemListView::DetailsLayout:
         m_fileItemListView->setScrollOrientation(Qt::Vertical);
-        m_fileItemListView->setHeaderShown(true);
+        m_fileItemListView->setHeaderVisible(true);
+        m_fileItemListView->setSupportsItemExpanding(DetailsModeSettings::expandableFolders());
+
         break;
     case KFileItemListView::CompactLayout:
         m_fileItemListView->setScrollOrientation(Qt::Horizontal);
-        m_fileItemListView->setHeaderShown(false);
+        m_fileItemListView->setHeaderVisible(false);
+        m_fileItemListView->setSupportsItemExpanding(false);
         break;
     default:
         Q_ASSERT(false);
@@ -170,7 +172,7 @@ void DolphinItemListContainer::endTransaction()
     m_fileItemListView->endTransaction();
 }
 
-void DolphinItemListContainer::refresh()
+void DolphinItemListContainer::readSettings()
 {
     ViewModeSettings settings(viewMode());
     settings.readConfig();
@@ -178,6 +180,11 @@ void DolphinItemListContainer::refresh()
     beginTransaction();
 
     m_fileItemListView->setEnabledSelectionToggles(GeneralSettings::showSelectionToggle());
+
+    const bool expandableFolders = (itemLayout() && KFileItemListView::DetailsLayout) &&
+                                   DetailsModeSettings::expandableFolders();
+    m_fileItemListView->setSupportsItemExpanding(expandableFolders);
+
     updateAutoActivationDelay();
     updateFont();
     updateGridSize();
@@ -192,6 +199,13 @@ void DolphinItemListContainer::refresh()
     endTransaction();
 }
 
+void DolphinItemListContainer::writeSettings()
+{
+    IconsModeSettings::self()->writeConfig();
+    CompactModeSettings::self()->writeConfig();
+    DetailsModeSettings::self()->writeConfig();
+}
+
 void DolphinItemListContainer::updateGridSize()
 {
     const ViewModeSettings settings(viewMode());
@@ -201,30 +215,63 @@ void DolphinItemListContainer::updateGridSize()
     m_zoomLevel = ZoomLevelInfo::zoomLevelForIconSize(QSize(iconSize, iconSize));
     KItemListStyleOption styleOption = m_fileItemListView->styleOption();
 
-    const int innerMargin = (iconSize >= KIconLoader::SizeSmallMedium) ? 4 : 2;
+    const int padding = 2;
+    int horizontalMargin = 0;
+    int verticalMargin = 0;
 
     // Calculate the item-width and item-height
     int itemWidth;
     int itemHeight;
+    QSize maxTextSize;
+
     switch (itemLayout()) {
     case KFileItemListView::IconsLayout: {
-        const int minItemWidth = 64;
+        const int minItemWidth = 48;
         itemWidth = minItemWidth + IconsModeSettings::textWidthIndex() * 64;
-        if (itemWidth < iconSize + innerMargin * 2) {
-            itemWidth = iconSize + innerMargin * 2;
+
+        if (previewsShown()) {
+            // Optimize the width for previews with a 3:2 aspect ratio instead
+            // of a 1:1 ratio to avoid wasting too much vertical space when
+            // photos.
+            const int minWidth = iconSize * 3 / 2;
+            itemWidth = qMax(itemWidth, minWidth);
+        }
+
+        if (itemWidth < iconSize + padding * 2) {
+            itemWidth = iconSize + padding * 2;
+        }
+
+        itemHeight = padding * 3 + iconSize + styleOption.fontMetrics.lineSpacing();
+        if (IconsModeSettings::maximumTextLines() > 0) {
+            // A restriction is given for the maximum number of textlines (0 means
+            // having no restriction)
+            const int additionalInfoCount = m_fileItemListView->visibleRoles().count() - 1;
+            const int maxAdditionalLines = additionalInfoCount + IconsModeSettings::maximumTextLines();
+            maxTextSize.rheight() = styleOption.fontMetrics.lineSpacing() * maxAdditionalLines;
         }
-        itemHeight = innerMargin * 2 + iconSize + styleOption.fontMetrics.height();
+
+        horizontalMargin = 4;
+        verticalMargin = 8;
         break;
     }
     case KFileItemListView::CompactLayout: {
-        itemWidth = innerMargin * 4 + iconSize + styleOption.fontMetrics.height() * 5;
+        itemWidth = padding * 4 + iconSize + styleOption.fontMetrics.height() * 5;
         const int textLinesCount = m_fileItemListView->visibleRoles().count();
-        itemHeight = innerMargin * 2 + qMax(iconSize, textLinesCount * styleOption.fontMetrics.height());
+        itemHeight = padding * 2 + qMax(iconSize, textLinesCount * styleOption.fontMetrics.lineSpacing());
+
+        if (CompactModeSettings::maximumTextWidthIndex() > 0) {
+            // A restriction is given for the maximum width of the text (0 means
+            // having no restriction)
+            maxTextSize.rwidth() = styleOption.fontMetrics.height() * 10 *
+                                   CompactModeSettings::maximumTextWidthIndex();
+        }
+
+        horizontalMargin = 8;
         break;
     }
     case KFileItemListView::DetailsLayout: {
         itemWidth = -1;
-        itemHeight = innerMargin * 2 + qMax(iconSize, styleOption.fontMetrics.height());
+        itemHeight = padding * 2 + qMax(iconSize, styleOption.fontMetrics.lineSpacing());
         break;
     }
     default:
@@ -235,10 +282,15 @@ void DolphinItemListContainer::updateGridSize()
     }
 
     // Apply the calculated values
-    styleOption.margin = innerMargin;
+    styleOption.padding = padding;
+    styleOption.horizontalMargin = horizontalMargin;
+    styleOption.verticalMargin = verticalMargin;
     styleOption.iconSize = iconSize;
+    styleOption.maxTextSize = maxTextSize;
+    m_fileItemListView->beginTransaction();
     m_fileItemListView->setStyleOption(styleOption);
     m_fileItemListView->setItemSize(QSizeF(itemWidth, itemHeight));
+    m_fileItemListView->endTransaction();
 }
 
 void DolphinItemListContainer::updateFont()