[Performous-commit] Tapio Vierros : Labels can be split from the middle with right click.

[Tapio V. <aa...@us...>]

Module: editor
Branch: master
Commit: a467a3ef75bef556578b0679f05273005c0b4b57

Author: Tapio Vierros <tap...@gm...>
Date:   Wed Jan  5 11:01:08 2011 +0200

Labels can be split from the middle with right click.

---

 draglabel.cc  |   23 +++++++++++++++--------
 draglabel.hh  |    5 +++--
 dragwidget.cc |   50 +++++++++++++++++++++++++++++++++++---------------
 3 files changed, 53 insertions(+), 25 deletions(-)

diff --git a/draglabel.cc b/draglabel.cc
index b2f0f7c..ebf78a8 100644
--- a/draglabel.cc
+++ b/draglabel.cc
@@ -47,18 +47,20 @@ namespace {
 }
 
 DragLabel::DragLabel(const QString &text, QWidget *parent)
-	: QLabel(parent)
+	: QLabel(parent), m_labelText(text)
 {
-	m_labelText = text;
-	QFontMetrics metric(font());
-	QSize s = metric.size(Qt::TextSingleLine, text);
-	s.rwidth() += text_margin;
-	s.rheight() += text_margin;
-	createPixmap(s);
+	createPixmap();
 }
 
 void DragLabel::createPixmap(QSize size)
 {
+	if (!size.isValid()) {
+		QFontMetrics metric(font());
+		size = metric.size(Qt::TextSingleLine, m_labelText);
+		size.rwidth() += text_margin;
+		size.rheight() += text_margin;
+	}
+
 	QImage image(size.width(), size.height(),
 				 QImage::Format_ARGB32_Premultiplied);
 	image.fill(qRgba(0, 0, 0, 0));
@@ -87,11 +89,16 @@ void DragLabel::createPixmap(QSize size)
 	setPixmap(QPixmap::fromImage(image));
 }
 
-QString DragLabel::labelText() const
+QString DragLabel::getText() const
 {
     return m_labelText;
 }
 
+void DragLabel::setText(const QString &text)
+{
+	m_labelText = text;
+}
+
 void DragLabel::resizeEvent(QResizeEvent *event)
 {
 	createPixmap(event->size());
diff --git a/draglabel.hh b/draglabel.hh
index a1b73f0..052f348 100644
--- a/draglabel.hh
+++ b/draglabel.hh
@@ -53,8 +53,9 @@ class DragLabel : public QLabel
 {
 public:
 	DragLabel(const QString &text, QWidget *parent);
-	void createPixmap(QSize size);
-	QString labelText() const;
+	void createPixmap(QSize size = QSize());
+	QString getText() const;
+	void setText(const QString &text);
 
 	void resizeEvent(QResizeEvent *event);
 
diff --git a/dragwidget.cc b/dragwidget.cc
index 889dc3a..aa9be1d 100644
--- a/dragwidget.cc
+++ b/dragwidget.cc
@@ -43,6 +43,7 @@
 #include "draglabel.hh"
 #include "dragwidget.hh"
 #include <iostream>
+#include <cmath>
 
 DragWidget::DragWidget(QWidget *parent)
 	: QWidget(parent)
@@ -152,27 +153,46 @@ void DragWidget::mousePressEvent(QMouseEvent *event)
 	if (!child)
 		return;
 
-	QPoint hotSpot = event->pos() - child->pos();
+	if (event->button() == Qt::LeftButton) {
+		QPoint hotSpot = event->pos() - child->pos();
 
-	QByteArray itemData;
-	QDataStream dataStream(&itemData, QIODevice::WriteOnly);
-	dataStream << child->labelText() << QPoint(hotSpot);
+		QByteArray itemData;
+		QDataStream dataStream(&itemData, QIODevice::WriteOnly);
+		dataStream << child->getText() << QPoint(hotSpot);
 
-	QMimeData *mimeData = new QMimeData;
-	mimeData->setData("application/x-fridgemagnet", itemData);
-	mimeData->setText(child->labelText());
+		QMimeData *mimeData = new QMimeData;
+		mimeData->setData("application/x-fridgemagnet", itemData);
+		mimeData->setText(child->getText());
 
-	QDrag *drag = new QDrag(this);
-	drag->setMimeData(mimeData);
-	drag->setPixmap(*child->pixmap());
-	drag->setHotSpot(hotSpot);
+		QDrag *drag = new QDrag(this);
+		drag->setMimeData(mimeData);
+		drag->setPixmap(*child->pixmap());
+		drag->setHotSpot(hotSpot);
 
-	child->hide();
+		child->hide();
+
+		if (drag->exec(Qt::MoveAction | Qt::CopyAction, Qt::CopyAction) == Qt::MoveAction)
+			child->close();
+		else
+			child->show();
+
+	} else if (event->button() == Qt::RightButton) {
+		int cutpos = int(std::ceil(child->getText().length() / 2.0));
+		QString firstst = child->getText().left(cutpos);
+		QString secondst = child->getText().right(child->getText().length() - cutpos);
+
+		DragLabel *newLabel1 = new DragLabel(firstst, this);
+		newLabel1->move(child->pos());
+		newLabel1->show();
+		newLabel1->setAttribute(Qt::WA_DeleteOnClose);
+
+		DragLabel *newLabel2 = new DragLabel(secondst, this);
+		newLabel2->move(newLabel1->pos() + QPoint(newLabel1->width(), 0));
+		newLabel2->show();
+		newLabel2->setAttribute(Qt::WA_DeleteOnClose);
 
-	if (drag->exec(Qt::MoveAction | Qt::CopyAction, Qt::CopyAction) == Qt::MoveAction)
 		child->close();
-	else
-		child->show();
+	}
 }
 
 void DragWidget::wheelEvent(QWheelEvent *event)