Element editor : graphic part

Diagram editor : shape item
Gain a new way to be resized: mirror resizing. Click on the item for switch the resize mode


git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@4583 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/QetGraphicsItemModeler/qetgraphicshandlerutility.cpp

@@ -24,8 +24,7 @@
  * @param size : the size of the handler
  */
 QetGraphicsHandlerUtility::QetGraphicsHandlerUtility(qreal size) :
-	m_size (size),
-	m_zoom_factor(1)
+	m_size (size)
 {}
 
 /**
@@ -34,19 +33,15 @@ QetGraphicsHandlerUtility::QetGraphicsHandlerUtility(qreal size) :
  * @param painter : painter to use for drawing the handler
  * @param point : point to draw the handler
  */
-void QetGraphicsHandlerUtility::drawHandler(QPainter *painter, const QPointF &point, bool color2)
+void QetGraphicsHandlerUtility::drawHandler(QPainter *painter, const QPointF &point)
 {
-		//Color of handler
-	QColor inner(0xFF, 0xFF, 0xFF);
-	QColor outer(0x00, 0x61, 0xFF);
-	if(color2) outer = QColor(0x1A, 0x5C, 0x14);
 		//Setup the zoom factor to draw the handler in the same size at screen,
 		//no matter the zoom of the QPainter
 	m_zoom_factor = 1.0/painter->transform().m11();
 
 	painter->save();
-	painter->setBrush(QBrush(inner));
-	QPen square_pen(QBrush(outer), 2, Qt::SolidLine, Qt::SquareCap, Qt::MiterJoin);
+	painter->setBrush(QBrush(m_inner_color));
+	QPen square_pen(QBrush(m_outer_color), 2, Qt::SolidLine, Qt::SquareCap, Qt::MiterJoin);
 	square_pen.setCosmetic(true);
 	painter->setPen(square_pen);
 	painter->drawRect(getRect(point));
@@ -55,14 +50,14 @@ void QetGraphicsHandlerUtility::drawHandler(QPainter *painter, const QPointF &po
 
 /**
  * @brief QetGraphicsHandlerUtility::drawHandler
- * Conveniance method for void QetGraphicsHandlerUtility::drawHandler(QPainter *painter, const QPointF &point, bool color2)
+ * Conveniance method for void QetGraphicsHandlerUtility::drawHandler(QPainter *painter, const QPointF &point)
  * @param painter
  * @param points
  * @param color2
  */
-void QetGraphicsHandlerUtility::drawHandler(QPainter *painter, const QVector<QPointF> &points, bool color2) {
+void QetGraphicsHandlerUtility::drawHandler(QPainter *painter, const QVector<QPointF> &points) {
 	foreach(QPointF point, points)
-		drawHandler(painter, point, color2);
+		drawHandler(painter, point);
 }
 
 /**
@@ -107,6 +102,14 @@ QVector<QRectF> QetGraphicsHandlerUtility::handlerRect(const QVector<QPointF> &v
 	return rect_vector;
 }
 
+void QetGraphicsHandlerUtility::setInnerColor(QColor color) {
+	m_inner_color = color;
+}
+
+void QetGraphicsHandlerUtility::setOuterColor(QColor color) {
+	m_outer_color = color;
+}
+
 /**
  * @brief QetGraphicsHandlerUtility::getRect
  * @param point
@@ -192,6 +195,64 @@ QRectF QetGraphicsHandlerUtility::rectForPosAtIndex(const QRectF &old_rect, cons
 	return rect;
 }
 
+/**
+ * @brief QetGraphicsHandlerUtility::mirrorRectForPosAtIndex
+ * Return a rectangle after modification of the point '@pos' at index '@index' of original rectangle '@old_rect'.
+ * the opposite edge is modified inversely (like a mirror)
+ * @param old_rect : the rectangle befor modification
+ * @param pos : the new position of a key point
+ * @param index : the index of the key point to modifie see QetGraphicsHandlerUtility::pointsForRect to know
+ * the index of each keys points of a rectangle)
+ * @return : the rectangle with modification. If index is lower than 0 or higher than 7, this method return old_rect.
+ */
+QRectF QetGraphicsHandlerUtility::mirrorRectForPosAtIndex(const QRectF &old_rect, const QPointF &pos, int index)
+{
+	if (index < 0 || index > 7) return old_rect;
+
+	QRectF rect = old_rect;
+	QPointF center = rect.center();
+
+	if (index == 0) {
+		qreal x = pos.x() + (pos.x() - rect.topLeft().x());
+		qreal y = pos.y() + (pos.y() - rect.topLeft().y());
+		rect.setTopLeft(QPointF(x,y));
+	}
+	else if (index == 1) {
+		qreal y = pos.y() + (pos.y() - rect.topLeft().y());
+		rect.setTop(y);
+	}
+	else if (index == 2) {
+		qreal x = pos.x() + (pos.x() - rect.topRight().x());
+		qreal y = pos.y() + (pos.y() - rect.topLeft().y());
+		rect.setTopRight(QPointF(x,y));
+	}
+	else if (index == 3) {
+		qreal x = pos.x() + (pos.x() - rect.left());
+		rect.setLeft(x);
+	}
+	else if (index == 4) {
+		qreal x = pos.x() + (pos.x() - rect.right());
+		rect.setRight(x);
+	}
+	else if (index == 5) {
+		qreal x = pos.x() + (pos.x() - rect.bottomLeft().x());
+		qreal y = pos.y() + (pos.y() - rect.bottomLeft().y());
+		rect.setBottomLeft(QPointF(x,y));
+	}
+	else if (index == 6) {
+		qreal y = pos.y() + (pos.y() - rect.bottom());
+		rect.setBottom(y);
+	}
+	else if (index == 7) {
+		qreal x = pos.x() + (pos.x() - rect.bottomRight().x());
+		qreal y = pos.y() + (pos.y() - rect.bottomRight().y());
+		rect.setBottomRight(QPointF(x,y));
+	}
+
+	rect.moveCenter(center);
+	return rect;
+}
+
 /**
  * @brief QetGraphicsHandlerUtility::lineForPosAtIndex
  * Return a line after modification of @pos at index @index of @old_line.

sources/QetGraphicsItemModeler/qetgraphicshandlerutility.h

@@ -20,6 +20,7 @@
 
 #include <QRectF>
 #include <QLineF>
+#include <QColor>
 
 class QPainter;
 
@@ -34,22 +35,27 @@ class QetGraphicsHandlerUtility
 	public:
 		QetGraphicsHandlerUtility (qreal size = 1);
 		void setSize(qreal size) {m_size = size;}
-		void drawHandler (QPainter *painter, const QPointF & point, bool color2 = false);
-		void drawHandler(QPainter *painter, const QVector<QPointF> &points, bool color2 = false);
+		void drawHandler (QPainter *painter, const QPointF & point);
+		void drawHandler(QPainter *painter, const QVector<QPointF> &points);
 		QPointF posForHandler(const QPointF &point) const;
 		bool pointIsInHandler (const QPointF &point, const QPointF &key_point) const;
 		int pointIsHoverHandler (const QPointF &point, const QVector<QPointF> &vector) const;
 		QVector<QRectF> handlerRect (const QVector<QPointF> &vector) const;
+		void setInnerColor (QColor color);
+		void setOuterColor (QColor color);
 
 	private:
 		QRectF getRect (const QPointF &point) const;
 		qreal m_size;
-		qreal m_zoom_factor;
+		qreal m_zoom_factor = 1;
+		QColor m_inner_color = Qt::white,
+			   m_outer_color = Qt::blue;
 
 	public:
 		static QVector <QPointF> pointsForRect (const QRectF &rect);
 		static QVector <QPointF> pointsForLine (const QLineF &line);
 		static QRectF rectForPosAtIndex (const QRectF &old_rect, const QPointF &pos, int index);
+		static QRectF mirrorRectForPosAtIndex (const QRectF &old_rect, const QPointF &pos, int index);
 		static QLineF lineForPosAtIndex (const QLineF &old_line, const QPointF &pos, int index);
 };
 

sources/editor/elementprimitivedecorator.cpp

@@ -21,11 +21,9 @@
 #include "editorcommands.h"
 #include "qet.h"
 #include <QPainter>
-#include <QDebug>
 #include <QGraphicsSceneHoverEvent>
 #include <QStyleOptionGraphicsItem>
 #include <QGraphicsScene>
-#include <QTransform>
 
 /**
 	Constructor
@@ -36,6 +34,7 @@ ElementPrimitiveDecorator::ElementPrimitiveDecorator(QGraphicsItem *parent):
 	m_handler(10)
 {
 	init();
+	m_handler.setOuterColor(Qt::darkGreen);
 }
 
 /**
@@ -97,8 +96,9 @@ void ElementPrimitiveDecorator::paint(QPainter *painter, const QStyleOptionGraph
 	pen.setCosmetic(true);
 	painter -> setPen(pen);
 	painter -> drawRect(modified_bounding_rect_);
+
 		//Draw the handlers
-	m_handler.drawHandler(painter, getResizingsPoints(), decorated_items_.size()-1);
+	m_handler.drawHandler(painter, getResizingsPoints());
 	
 	// uncomment to draw the real bouding rect (=adjusted internal bounding rect)
 	// painter -> setBrush(QBrush(QColor(240, 0, 0, 127)));

sources/editor/graphicspart/partarc.cpp

@@ -232,7 +232,11 @@ void PartArc::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
 	{
 		QPointF pos_ = event->modifiers() == Qt::ControlModifier ? event->pos() : mapFromScene(elementScene()->snapToGrid(event->scenePos()));
 		prepareGeometryChange();
+
+		if (m_resize_mode == 1)
 			setRect(m_handler.rectForPosAtIndex(m_rect, pos_, m_handler_index));
+		else
+			setRect(m_handler.mirrorRectForPosAtIndex(m_rect, pos_, m_handler_index));
 	}
 	else
 		CustomElementGraphicPart::mouseMoveEvent(event);
@@ -245,8 +249,11 @@ void PartArc::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
  */
 void PartArc::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 {
-	if (event->button() == Qt::LeftButton)
+	if (event->button() == Qt::LeftButton) {
 		setCursor(Qt::OpenHandCursor);
+		if (event->buttonDownPos(Qt::LeftButton) == event->pos())
+			switchResizeMode();
+	}
 
 	if (m_handler_index >= 0 && m_handler_index <= 7)
 	{
@@ -261,3 +268,16 @@ void PartArc::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 	else
 		CustomElementGraphicPart::mouseReleaseEvent(event);
 }
+
+void PartArc::switchResizeMode()
+{
+	if (m_resize_mode == 1) {
+		m_resize_mode = 2;
+		m_handler.setOuterColor(Qt::darkGreen);
+	}
+	else {
+		m_resize_mode = 1;
+		m_handler.setOuterColor(Qt::blue);
+	}
+	update();
+}

sources/editor/graphicspart/partarc.h

@@ -64,9 +64,13 @@ class PartArc : public AbstractPartEllipse
 		virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
 		virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
 
+	private:
+		void switchResizeMode();
+
 	private:
 		QetGraphicsHandlerUtility m_handler;
 		int m_handler_index;
 		QPropertyUndoCommand *m_undo_command;
+		int m_resize_mode = 1;
 };
 #endif

sources/editor/graphicspart/partellipse.cpp

@@ -227,7 +227,11 @@ void PartEllipse::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
 	{
 		QPointF pos_ = event->modifiers() == Qt::ControlModifier ? event->pos() : mapFromScene(elementScene()->snapToGrid(event->scenePos()));
 		prepareGeometryChange();
+
+		if (m_resize_mode == 1)
 			setRect(m_handler.rectForPosAtIndex(m_rect, pos_, m_handler_index));
+		else
+			setRect(m_handler.mirrorRectForPosAtIndex(m_rect, pos_, m_handler_index));
 	}
 	else
 		CustomElementGraphicPart::mouseMoveEvent(event);
@@ -240,8 +244,11 @@ void PartEllipse::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
  */
 void PartEllipse::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 {
-	if (event->button() == Qt::LeftButton)
+	if (event->button() == Qt::LeftButton) {
 		setCursor(Qt::OpenHandCursor);
+		if (event->buttonDownPos(Qt::LeftButton) == event->pos())
+			switchResizeMode();
+	}
 
 	if (m_handler_index >= 0 && m_handler_index <= 7)
 	{
@@ -256,3 +263,16 @@ void PartEllipse::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 	else
 		CustomElementGraphicPart::mouseReleaseEvent(event);
 }
+
+void PartEllipse::switchResizeMode()
+{
+	if (m_resize_mode == 1) {
+		m_resize_mode = 2;
+		m_handler.setOuterColor(Qt::darkGreen);
+	}
+	else {
+		m_resize_mode = 1;
+		m_handler.setOuterColor(Qt::blue);
+	}
+	update();
+}

sources/editor/graphicspart/partellipse.h

@@ -66,9 +66,13 @@ class PartEllipse : public  AbstractPartEllipse
 		virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
 		virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
 
+	private:
+		void switchResizeMode();
+
 	private:
 		QetGraphicsHandlerUtility m_handler;
 		int m_handler_index;
 		QPropertyUndoCommand *m_undo_command;
+		int m_resize_mode = 1;
 };
 #endif

sources/editor/graphicspart/partrectangle.cpp

@@ -298,7 +298,11 @@ void PartRectangle::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
 	{
 		QPointF pos_ = event->modifiers() == Qt::ControlModifier ? event->pos() : mapFromScene(elementScene()->snapToGrid(event->scenePos()));
 		prepareGeometryChange();
+
+		if (m_resize_mode == 1)
 			setRect(m_handler.rectForPosAtIndex(m_rect, pos_, m_handler_index));
+		else
+			setRect(m_handler.mirrorRectForPosAtIndex(m_rect, pos_, m_handler_index));
 	}
 	else
 		CustomElementGraphicPart::mouseMoveEvent(event);
@@ -311,8 +315,11 @@ void PartRectangle::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
  */
 void PartRectangle::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 {
-	if (event->button() == Qt::LeftButton)
+	if (event->button() == Qt::LeftButton) {
 		setCursor(Qt::OpenHandCursor);
+		if (event->buttonDownPos(Qt::LeftButton) == event->pos())
+			switchResizeMode();
+	}
 
 	if (m_handler_index >= 0 && m_handler_index <= 7)
 	{
@@ -327,3 +334,16 @@ void PartRectangle::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 	else
 		CustomElementGraphicPart::mouseReleaseEvent(event);
 }
+
+void PartRectangle::switchResizeMode()
+{
+	if (m_resize_mode == 1) {
+		m_resize_mode = 2;
+		m_handler.setOuterColor(Qt::darkGreen);
+	}
+	else {
+		m_resize_mode = 1;
+		m_handler.setOuterColor(Qt::blue);
+	}
+	update();
+}

sources/editor/graphicspart/partrectangle.h

@@ -80,11 +80,15 @@ class PartRectangle :  public CustomElementGraphicPart
 		virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
 		virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
 
+	private:
+		void switchResizeMode();
+	
 	private:
 		QRectF m_rect;
 		QList<QPointF> saved_points_;
 		QetGraphicsHandlerUtility m_handler;
 		int m_handler_index;
 		QPropertyUndoCommand *m_undo_command;
+		int m_resize_mode = 1;
 };
 #endif

sources/qetgraphicsitem/qetshapeitem.cpp

@@ -435,8 +435,24 @@ void QetShapeItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
 				m_vector_index == 0 ? m_P1 = new_pos : m_P2 = new_pos;
 				break;
 
-			case Rectangle: setRect(m_handler.rectForPosAtIndex(QRectF(m_P1, m_P2), new_pos, m_vector_index)); break;
-			case Ellipse:   setRect(m_handler.rectForPosAtIndex(QRectF(m_P1, m_P2), new_pos, m_vector_index)); break;
+			case Rectangle:
+				if (m_resize_mode == 1) {
+					setRect(m_handler.rectForPosAtIndex(QRectF(m_P1, m_P2), new_pos, m_vector_index));
+					break;
+				}
+				else {
+					setRect(m_handler.mirrorRectForPosAtIndex(QRectF(m_P1, m_P2), new_pos, m_vector_index));
+					break;
+				}
+			case Ellipse:
+				if (m_resize_mode == 1) {
+					setRect(m_handler.rectForPosAtIndex(QRectF(m_P1, m_P2), new_pos, m_vector_index));
+					break;
+				}
+				else {
+					setRect(m_handler.mirrorRectForPosAtIndex(QRectF(m_P1, m_P2), new_pos, m_vector_index));
+					break;
+				}
 
 			case Polygon:
 				prepareGeometryChange();
@@ -456,6 +472,9 @@ void QetShapeItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
  */
 void QetShapeItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 {
+	if ((m_shapeType & (Rectangle | Ellipse)) && event->buttonDownPos(Qt::LeftButton) == event->pos())
+		switchResizeMode();
+
 	if (m_mouse_grab_handler)
 	{
 		m_mouse_grab_handler = false;
@@ -488,6 +507,19 @@ void QetShapeItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 	QetGraphicsItem::mouseReleaseEvent(event);
 }
 
+void QetShapeItem::switchResizeMode()
+{
+	if (m_resize_mode == 1) {
+		m_resize_mode = 2;
+		m_handler.setOuterColor(Qt::darkGreen);
+	}
+	else {
+		m_resize_mode = 1;
+		m_handler.setOuterColor(Qt::blue);
+	}
+	update();
+}
+
 /**
  * @brief QetShapeItem::fromXml
  * Build this item from the xml description

sources/qetgraphicsitem/qetshapeitem.h

@@ -102,6 +102,9 @@ class QetShapeItem : public QetGraphicsItem
 		virtual void mouseMoveEvent    (QGraphicsSceneMouseEvent *event);
 		virtual void mouseReleaseEvent (QGraphicsSceneMouseEvent *event);
 
+	private:
+		void switchResizeMode();
+
 		///ATTRIBUTES
 	private:
 		ShapeType	 m_shapeType;
@@ -114,5 +117,6 @@ class QetShapeItem : public QetGraphicsItem
 		int			 m_vector_index;
 		QetGraphicsHandlerUtility m_handler;
 		bool m_close = false;
+		int m_resize_mode = 1;
 };
 #endif // QETSHAPEITEM_H