- Moved HandleRichText from the folder "chat" to "util" and redesigned the source

- Extended RsHtml::formatText to replace the RetroShare links with an image and enabled this for the certificate links in the system messages (friend recommendation and user request)
- Added new ObjectPainter for painting a button on a pixmap


git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@5160 b45a01b8-16f6-495d-af2f-9b41ad6348cc

retroshare-gui/src/util/ObjectPainter.cpp

@@ -0,0 +1,62 @@
+/****************************************************************
+ *  RetroShare is distributed under the following license:
+ *
+ *  Copyright (C) 2012, RetroShare Team
+ *
+ *  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 <QPushButton>
+#include <QStyleOption>
+#include <QStylePainter>
+
+#include "ObjectPainter.h"
+
+namespace ObjectPainter
+{
+
+class DrawButton : public QPushButton
+{
+public:
+	DrawButton(const QString &text) : QPushButton(text) {}
+
+	void drawOnPixmap(QPixmap &pixmap)
+	{
+		// get a transparent pixmap
+		pixmap = QPixmap(size());
+		pixmap.fill(Qt::transparent);
+
+		// init options
+		QStyleOptionButton option;
+		initStyleOption(&option);
+
+		// draw the button onto the pixmap
+		QStylePainter painter(&pixmap, this);
+		painter.drawControl(QStyle::CE_PushButton, option);
+		painter.end();
+	}
+};
+
+void drawButton(const QString &text, const QString &styleSheet, QPixmap &pixmap)
+{
+	DrawButton button(text);
+	button.setStyleSheet(styleSheet);
+	QSize size = button.sizeHint();
+	button.setGeometry(0, 0, size.width(), size.height());
+	button.drawOnPixmap(pixmap);
+}
+
+}