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, 129 insertions, 0 deletions

diff --git a/src/tooltips/kformattedballoontipdelegate.cpp b/src/tooltips/kformattedballoontipdelegate.cpp
new file mode 100644
index 000000000..140c90ef4
--- /dev/null
+++ b/src/tooltips/kformattedballoontipdelegate.cpp
@@ -0,0 +1,129 @@
+/*******************************************************************************
+ *   Copyright (C) 2008 by Fredrik Höglund <[email protected]>                   *
+ *   Copyright (C) 2008 by Konstantin Heil <[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 "kformattedballoontipdelegate.h"
+#include <QBitmap>
+#include <QLinearGradient>
+#include <QTextDocument>
+#include <kcolorscheme.h>
+
+KFormattedBalloonTipDelegate::KFormattedBalloonTipDelegate()
+{
+}
+
+KFormattedBalloonTipDelegate::~KFormattedBalloonTipDelegate()
+{
+}
+
+QSize KFormattedBalloonTipDelegate::sizeHint(const KStyleOptionToolTip *option, const KToolTipItem *item) const
+{
+    QTextDocument doc;
+    doc.setHtml(item->text());
+    const QIcon icon = item->icon();
+
+    const QSize iconSize = icon.isNull() ? QSize(0, 0) : icon.actualSize(option->decorationSize);
+    const QSize docSize = doc.size().toSize();
+    QSize contentSize = iconSize + docSize;
+
+    // assure that the content height is large enough for the icon and the document
+    contentSize.setHeight(iconSize.height() > doc.size().height() ? iconSize.height() : doc.size().height());
+    return contentSize + QSize(Border * 3, Border * 2);
+}
+
+void KFormattedBalloonTipDelegate::paint(QPainter *painter,
+                                         const KStyleOptionToolTip *option,
+                                         const KToolTipItem *item) const
+{
+    QPainterPath path = createPath(*option);
+    if (haveAlphaChannel()) {
+        painter->setRenderHint(QPainter::Antialiasing);
+        painter->translate(.5, .5);
+    }
+
+    const QColor toColor = option->palette.brush(QPalette::ToolTipBase).color();
+    const QColor fromColor = KColorScheme::shade(toColor, KColorScheme::LightShade, 0.2);
+
+    QLinearGradient gradient(option->rect.topLeft(), option->rect.bottomLeft());
+    gradient.setColorAt(0.0, fromColor);
+    gradient.setColorAt(1.0, toColor);
+    painter->setPen(Qt::NoPen);
+    painter->setBrush(gradient);
+
+    painter->drawPath(path);
+
+    const QIcon icon = item->icon();
+    int x = Border;
+    const int y = Border;
+    if (!icon.isNull()) {
+        const QSize iconSize = icon.actualSize(option->decorationSize);
+        const QPoint pos(x + option->rect.x(), y + option->rect.y());
+        painter->drawPixmap(pos, icon.pixmap(iconSize));
+        x += iconSize.width() + Border;
+    }
+
+    QTextDocument doc;
+    doc.setHtml(item->text());
+    QPixmap bitmap(doc.size().toSize());
+    bitmap.fill(Qt::transparent);
+    QPainter p(&bitmap);
+    doc.drawContents(&p);
+
+    const QRect docRect(QPoint(x, y), doc.size().toSize());
+    painter->drawPixmap(docRect, bitmap);
+}
+
+QRegion KFormattedBalloonTipDelegate::inputShape(const KStyleOptionToolTip *option) const
+{
+    QBitmap bitmap(option->rect.size());
+    bitmap.fill(Qt::color0);
+
+    QPainter p(&bitmap);
+    p.setPen(QPen(Qt::color1, 1));
+    p.setBrush(Qt::color1);
+    p.drawPath(createPath(*option));
+
+    return QRegion(bitmap);
+}
+
+QRegion KFormattedBalloonTipDelegate::shapeMask(const KStyleOptionToolTip *option) const
+{
+    return inputShape(option);
+}
+
+static inline void arc(QPainterPath &path, qreal cx, qreal cy, qreal radius, qreal angle, qreal sweeplength)
+{
+    path.arcTo(cx-radius, cy-radius, radius * 2, radius * 2, angle, sweeplength);
+}
+
+QPainterPath KFormattedBalloonTipDelegate::createPath(const KStyleOptionToolTip& option) const
+{
+    const QRect rect = option.rect;
+    const qreal radius = 5;
+
+    QPainterPath path;
+    path.moveTo(rect.left(), rect.top() + radius);
+    arc(path, rect.left()  + radius, rect.top()    + radius, radius, 180, -90);
+    arc(path, rect.right() - radius, rect.top()    + radius, radius,  90, -90);
+    arc(path, rect.right() - radius, rect.bottom() - radius, radius,   0, -90);
+    arc(path, rect.left()  + radius, rect.bottom() - radius, radius, 270, -90);
+    path.closeSubpath();
+
+    return path;
+}