Group classes into folders, Dolphin is too big in the meantime for having a flat directory hierarchy. dolphin/src/CMakeLists.txt will be cleaned up later.

svn path=/trunk/KDE/kdebase/apps/; revision=911065

1 files changed, 135 insertions, 0 deletions

diff --git a/src/panels/information/metatextlabel.cpp b/src/panels/information/metatextlabel.cpp
new file mode 100644
index 000000000..66f12db90
--- /dev/null
+++ b/src/panels/information/metatextlabel.cpp
@@ -0,0 +1,135 @@
+/***************************************************************************
+ *   Copyright (C) 2008 by Peter Penz <[email protected]>                  *
+ *                                                                         *
+ *   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 2 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, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
+ ***************************************************************************/
+
+#include "metatextlabel.h"
+
+#include <kglobalsettings.h>
+#include <klocale.h>
+
+#include <QPainter>
+#include <QTextLayout>
+#include <QTextLine>
+#include <kdebug.h>
+
+MetaTextLabel::MetaTextLabel(QWidget* parent) :
+    QWidget(parent),
+    m_minimumHeight(0),
+    m_metaInfos()
+{
+    setFont(KGlobalSettings::smallestReadableFont());
+}
+
+MetaTextLabel::~MetaTextLabel()
+{
+}
+
+void MetaTextLabel::clear()
+{
+    m_minimumHeight = 0;
+    m_metaInfos.clear();
+    update();
+}
+
+void MetaTextLabel::add(const QString& labelText, const QString& infoText)
+{
+    MetaInfo metaInfo;
+    metaInfo.label = labelText;
+    metaInfo.info = infoText;
+    
+    m_metaInfos.append(metaInfo);
+    
+    m_minimumHeight += requiredHeight(metaInfo);
+    setMinimumHeight(m_minimumHeight);
+    
+    update();
+}
+
+void MetaTextLabel::paintEvent(QPaintEvent* event)
+{
+    QWidget::paintEvent(event);
+    
+    QPainter painter(this);
+    
+    const QColor infoColor = palette().color(QPalette::Foreground);
+    QColor labelColor = infoColor;
+    labelColor.setAlpha(128);
+    
+    int y = 0;
+    const int infoWidth = width() / 2;
+    const int labelWidth = infoWidth - 2 * Spacing;
+    const int infoX = infoWidth;
+    const int maxHeight = fontMetrics().height() * 5;
+    
+    QRect boundingRect;
+    foreach (const MetaInfo& metaInfo, m_metaInfos) {
+        // draw label (e. g. "Date:")
+        painter.setPen(labelColor);
+        painter.drawText(0, y, labelWidth, maxHeight,
+                         Qt::AlignTop | Qt::AlignRight | Qt::TextWordWrap,
+                         metaInfo.label);
+                         
+        // draw information (e. g. "2008-11-09 20:12")
+        painter.setPen(infoColor);
+        painter.drawText(infoX, y, infoWidth, maxHeight,
+                         Qt::AlignTop | Qt::AlignLeft | Qt::TextWordWrap,
+                         metaInfo.info,
+                         &boundingRect);
+                         
+        y += boundingRect.height() + Spacing;
+    }
+}
+
+void MetaTextLabel::resizeEvent(QResizeEvent* event)
+{
+    QWidget::resizeEvent(event);
+    
+    m_minimumHeight = 0;
+    foreach (const MetaInfo& metaInfo, m_metaInfos) {
+        m_minimumHeight += requiredHeight(metaInfo);
+    }
+    setMinimumHeight(m_minimumHeight);
+}
+
+int MetaTextLabel::requiredHeight(const MetaInfo& metaInfo) const
+{
+    QTextOption textOption;
+    textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
+    
+    qreal height = 0;
+    const int leading = fontMetrics().leading();
+    const int availableWidth = width() / 2;
+    
+    QTextLayout textLayout(metaInfo.info);
+    textLayout.setFont(font());
+    textLayout.setTextOption(textOption);
+    
+    textLayout.beginLayout();
+    QTextLine line = textLayout.createLine();
+    while (line.isValid()) {
+        line.setLineWidth(availableWidth);
+        height += leading;
+        height += line.height();
+        line = textLayout.createLine();
+    }    
+    textLayout.endLayout();
+    
+    return static_cast<int>(height) + Spacing;
+}
+
+#include "metatextlabel.moc"