Fixed rendering issues in ListWidget in SiteInfo

It should now be rendered well with all possible
font sizes.

Closes #663

src/lib/lib.pro

@@ -194,7 +194,8 @@ SOURCES += \
     network/schemehandlers/qupzillaschemehandler.cpp \
     network/schemehandlers/adblockschemehandler.cpp \
     network/schemehandlers/fileschemehandler.cpp \
-    other/registerqappassociation.cpp
+    other/registerqappassociation.cpp \
+    tools/listitemdelegate.cpp
 
 HEADERS  += \
     webview/tabpreview.h \
@@ -351,7 +352,8 @@ HEADERS  += \
     network/schemehandlers/qupzillaschemehandler.h \
     network/schemehandlers/adblockschemehandler.h \
     network/schemehandlers/fileschemehandler.h \
-    other/registerqappassociation.h
+    other/registerqappassociation.h \
+    tools/listitemdelegate.h
 
 FORMS    += \
     preferences/autofillmanager.ui \

src/lib/preferences/pluginlistdelegate.h

@@ -27,7 +27,7 @@ class QListWidget;
 class QT_QUPZILLA_EXPORT PluginListDelegate : public QStyledItemDelegate
 {
 public:
-    PluginListDelegate(QListWidget* parent);
+    explicit PluginListDelegate(QListWidget* parent);
 
     void paint(QPainter* painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
     QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const;

src/lib/tools/listitemdelegate.cpp

@@ -0,0 +1,88 @@
+/* ============================================================
+* QupZilla - WebKit based browser
+* Copyright (C) 2010-2012  David Rosca <nowrep@gmail.com>
+*
+* 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
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+* ============================================================ */
+#include "listitemdelegate.h"
+
+#include <QApplication>
+#include <QPainter>
+
+ListItemDelegate::ListItemDelegate(int iconSize, QWidget* parent)
+    : QStyledItemDelegate(parent)
+    , m_iconSize(iconSize)
+    , m_itemHeight(0)
+    , m_padding(0)
+{
+}
+
+int ListItemDelegate::itemHeight() const
+{
+    return m_itemHeight;
+}
+
+void ListItemDelegate::paint(QPainter* painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
+{
+    QStyleOptionViewItemV4 opt = option;
+    initStyleOption(&opt, index);
+
+    const QWidget* w = opt.widget;
+    const QStyle* style = w ? w->style() : QApplication::style();
+    const Qt::LayoutDirection direction = w ? w->layoutDirection() : QApplication::layoutDirection();
+
+#ifdef Q_OS_WIN
+    const QPalette::ColorRole colorRole = QPalette::Text;
+#else
+    const QPalette::ColorRole colorRole = opt.state & QStyle::State_Selected ? QPalette::HighlightedText : QPalette::Text;
+#endif
+
+    int topPosition = opt.rect.top() + m_padding;
+
+    // Draw background
+    style->drawPrimitive(QStyle::PE_PanelItemViewItem, &opt, painter, w);
+
+    // Draw icon
+    QRect iconRect(opt.rect.left() + (opt.rect.width() - m_iconSize) / 2, topPosition, m_iconSize, m_iconSize);
+    QRect visualIconRect = style->visualRect(direction, opt.rect, iconRect);
+    QPixmap pixmap = index.data(Qt::DecorationRole).value<QIcon>().pixmap(m_iconSize);
+    painter->drawPixmap(visualIconRect, pixmap);
+    topPosition += m_iconSize + m_padding;
+
+    // Draw title
+    const QString &title = index.data(Qt::DisplayRole).toString();
+    const int leftTitleEdge = opt.rect.left() + m_padding;
+    QRect titleRect(leftTitleEdge, topPosition, opt.rect.width() - 2 * m_padding, opt.fontMetrics.height());
+    QRect visualTitleRect = style->visualRect(direction, opt.rect, titleRect);
+    style->drawItemText(painter, visualTitleRect, Qt::AlignCenter, opt.palette, true, title, colorRole);
+}
+
+QSize ListItemDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
+{
+    if (!m_itemHeight) {
+        QStyleOptionViewItemV4 opt(option);
+        initStyleOption(&opt, index);
+
+        const QWidget* w = opt.widget;
+        const QStyle* style = w ? w->style() : QApplication::style();
+        const int padding = style->pixelMetric(QStyle::PM_FocusFrameHMargin, 0) + 1;
+
+        m_padding = padding > 5 ? padding : 5;
+
+        m_itemHeight = 3 * m_padding + opt.fontMetrics.height() + m_iconSize;
+    }
+
+    int width = 2 * m_padding + option.fontMetrics.width(index.data(Qt::DisplayRole).toString());
+    return QSize(width > (m_iconSize + 2 * m_padding) ? width : m_iconSize + 2 * m_padding, m_itemHeight);
+}

src/lib/tools/listitemdelegate.h

@@ -0,0 +1,41 @@
+/* ============================================================
+* QupZilla - WebKit based browser
+* Copyright (C) 2010-2012  David Rosca <nowrep@gmail.com>
+*
+* 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
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+* ============================================================ */
+#ifndef LISTITEMDELEGATE_H
+#define LISTITEMDELEGATE_H
+
+#include <QStyledItemDelegate>
+
+#include "qz_namespace.h"
+
+class QT_QUPZILLA_EXPORT ListItemDelegate : public QStyledItemDelegate
+{
+public:
+    explicit ListItemDelegate(int iconSize, QWidget* parent);
+
+    int itemHeight() const;
+
+    void paint(QPainter* painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
+    QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const;
+
+private:
+    int m_iconSize;
+    mutable int m_itemHeight;
+    mutable int m_padding;
+};
+
+#endif // LISTITEMDELEGATE_H

src/lib/webview/siteinfo.cpp

@@ -17,6 +17,7 @@
 * ============================================================ */
 #include "siteinfo.h"
 #include "ui_siteinfo.h"
+#include "listitemdelegate.h"
 #include "webview.h"
 #include "webpage.h"
 #include "mainapplication.h"
@@ -53,12 +54,17 @@ SiteInfo::SiteInfo(WebView* view, QWidget* parent)
     setAttribute(Qt::WA_DeleteOnClose);
     ui->setupUi(this);
 
+    ListItemDelegate* delegate = new ListItemDelegate(24, ui->listWidget);
+    ui->listWidget->setItemDelegate(delegate);
+
     ui->listWidget->item(0)->setIcon(QIcon::fromTheme("document-properties", QIcon(":/icons/preferences/document-properties.png")));
     ui->listWidget->item(1)->setIcon(QIcon::fromTheme("applications-graphics", QIcon(":/icons/preferences/applications-graphics.png")));
     ui->listWidget->item(2)->setIcon(QIcon::fromTheme("text-x-sql", QIcon(":/icons/preferences/text-x-sql.png")));
     ui->listWidget->item(3)->setIcon(QIcon::fromTheme("dialog-password", QIcon(":/icons/preferences/dialog-password.png")));
     ui->listWidget->item(0)->setSelected(true);
 
+    ui->listWidget->setFixedHeight(delegate->itemHeight());
+
     WebPage* webPage = view->page();
     QWebFrame* frame = view->page()->mainFrame();
     QString title = view->title();

src/lib/webview/siteinfo.ui

@@ -16,18 +16,6 @@
   <layout class="QGridLayout" name="gridLayout">
    <item row="0" column="0">
     <widget class="QListWidget" name="listWidget">
-     <property name="sizePolicy">
-      <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
-       <horstretch>0</horstretch>
-       <verstretch>0</verstretch>
-      </sizepolicy>
-     </property>
-     <property name="maximumSize">
-      <size>
-       <width>16777215</width>
-       <height>53</height>
-      </size>
-     </property>
      <property name="focusPolicy">
       <enum>Qt::NoFocus</enum>
      </property>
@@ -40,8 +28,8 @@
      <property name="movement">
       <enum>QListView::Static</enum>
      </property>
-     <property name="flow">
-      <enum>QListView::LeftToRight</enum>
+     <property name="resizeMode">
+      <enum>QListView::Adjust</enum>
      </property>
      <property name="viewMode">
       <enum>QListView::IconMode</enum>