QmlObserver: Remove breadcrumb widget in observer mode

I wasn't able to get it working on Mac OS X: Putting it on top
of the QGraphicsView doesn't work because Cocoa doesn't allow a
widget to be on top of OpenGL viewport. Embedding it as a
QGraphicsProxyWidget produces lots of Cocoa warnings (raster engine related).

Anyhow, the same widget shows up in the Debugger/Observer tab of
Qt Creator.

Reviewed-by: Lasse Holmstedt

13 files changed, 4 insertions, 531 deletions

diff --git a/share/qtcreator/qml/qmlobserver/crumblepath.cpp b/share/qtcreator/qml/qmlobserver/crumblepath.cpp
deleted file mode 100644
index 47f471f3c1..0000000000
--- a/share/qtcreator/qml/qmlobserver/crumblepath.cpp
+++ /dev/null
@@ -1,389 +0,0 @@
-/**************************************************************************
-**
-** This file is part of Qt Creator
-**
-** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
-**
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** Commercial Usage
-**
-** Licensees holding valid Qt Commercial licenses may use this file in
-** accordance with the Qt Commercial License Agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Nokia.
-**
-** GNU Lesser General Public License Usage
-**
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at http://qt.nokia.com/contact.
-**
-**************************************************************************/
-
-#include "crumblepath.h"
-
-#include <QtCore/QList>
-#include <QtGui/QHBoxLayout>
-#include <QtGui/QPushButton>
-#include <QtGui/QStyle>
-#include <QtGui/QResizeEvent>
-#include <QtGui/QPainter>
-#include <QtGui/QImage>
-
-static const int ArrowBorderSize = 12;
-
-// Draws a CSS-like border image where the defined borders are not stretched
-static void drawCornerImage(const QImage &img, QPainter *painter, QRect rect,
-                                  int left, int top, int right, int bottom)
-{
-    QSize size = img.size();
-    if (top > 0) { //top
-        painter->drawImage(QRect(rect.left() + left, rect.top(), rect.width() -right - left, top), img,
-                           QRect(left, 0, size.width() -right - left, top));
-        if (left > 0) //top-left
-            painter->drawImage(QRect(rect.left(), rect.top(), left, top), img,
-                               QRect(0, 0, left, top));
-        if (right > 0) //top-right
-            painter->drawImage(QRect(rect.left() + rect.width() - right, rect.top(), right, top), img,
-                               QRect(size.width() - right, 0, right, top));
-    }
-    //left
-    if (left > 0)
-        painter->drawImage(QRect(rect.left(), rect.top()+top, left, rect.height() - top - bottom), img,
-                           QRect(0, top, left, size.height() - bottom - top));
-    //center
-    painter->drawImage(QRect(rect.left() + left, rect.top()+top, rect.width() -right - left,
-                             rect.height() - bottom - top), img,
-                       QRect(left, top, size.width() -right -left,
-                             size.height() - bottom - top));
-    if (right > 0) //right
-        painter->drawImage(QRect(rect.left() +rect.width() - right, rect.top()+top, right, rect.height() - top - bottom), img,
-                           QRect(size.width() - right, top, right, size.height() - bottom - top));
-    if (bottom > 0) { //bottom
-        painter->drawImage(QRect(rect.left() +left, rect.top() + rect.height() - bottom,
-                                 rect.width() - right - left, bottom), img,
-                           QRect(left, size.height() - bottom,
-                                 size.width() - right - left, bottom));
-    if (left > 0) //bottom-left
-        painter->drawImage(QRect(rect.left(), rect.top() + rect.height() - bottom, left, bottom), img,
-                           QRect(0, size.height() - bottom, left, bottom));
-    if (right > 0) //bottom-right
-        painter->drawImage(QRect(rect.left() + rect.width() - right, rect.top() + rect.height() - bottom, right, bottom), img,
-                           QRect(size.width() - right, size.height() - bottom, right, bottom));
-    }
-}
-
-// Tints an image with tintColor, while preserving alpha and lightness
-static void tintImage(QImage &img, const QColor &tintColor)
-{
-    QPainter p(&img);
-    p.setCompositionMode(QPainter::CompositionMode_Screen);
-
-    for (int x = 0; x < img.width(); ++x) {
-        for (int y = 0; y < img.height(); ++y) {
-            QRgb rgbColor = img.pixel(x, y);
-            int alpha = qAlpha(rgbColor);
-            QColor c = QColor(rgbColor);
-
-            if (alpha > 0) {
-                c.toHsl();
-                qreal l = c.lightnessF();
-                QColor newColor = QColor::fromHslF(tintColor.hslHueF(), tintColor.hslSaturationF(), l);
-                newColor.setAlpha(alpha);
-                img.setPixel(x, y, newColor.rgba());
-            }
-        }
-    }
-}
-
-class CrumblePathButton : public QPushButton
-{
-public:
-    enum SegmentType {
-        LastSegment = 1,
-        MiddleSegment = 2,
-        FirstSegment = 4
-    };
-
-    explicit CrumblePathButton(const QString &title, QWidget *parent = 0);
-    void setSegmentType(int type);
-protected:
-    void paintEvent(QPaintEvent *);
-    void mouseMoveEvent(QMouseEvent *e);
-    void leaveEvent(QEvent *);
-    void mousePressEvent(QMouseEvent *e);
-    void mouseReleaseEvent(QMouseEvent *e);
-
-private:
-    void tintImages();
-
-private:
-    bool m_isHovering;
-    bool m_isPressed;
-    bool m_isEnd;
-    QColor m_baseColor;
-    QImage m_segment;
-    QImage m_segmentEnd;
-    QImage m_segmentSelected;
-    QImage m_segmentSelectedEnd;
-    QImage m_segmentHover;
-    QImage m_segmentHoverEnd;
-    QPoint m_textPos;
-};
-
-CrumblePathButton::CrumblePathButton(const QString &title, QWidget *parent)
-    : QPushButton(title, parent), m_isHovering(false), m_isPressed(false), m_isEnd(true)
-{
-    setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
-    setToolTip(title);
-    setMinimumHeight(24);
-    setMaximumHeight(24);
-    setMouseTracking(true);
-    m_textPos.setX(18);
-    m_textPos.setY(height());
-    m_baseColor = QColor(0x666666);
-
-    m_segment = QImage(":/crumblepath/images/crumblepath-segment.png");
-    m_segmentSelected = QImage(":/crumblepath/images/crumblepath-segment-selected.png");
-    m_segmentHover = QImage(":/crumblepath/images/crumblepath-segment-hover.png");
-    m_segmentEnd = QImage(":/crumblepath/images/crumblepath-segment-end.png");
-    m_segmentSelectedEnd = QImage(":/crumblepath/images/crumblepath-segment-selected-end.png");
-    m_segmentHoverEnd = QImage(":/crumblepath/images/crumblepath-segment-hover-end.png");
-
-    tintImages();
-}
-
-void CrumblePathButton::paintEvent(QPaintEvent *)
-{
-    QPainter p(this);
-    QRect geom(0, 0, geometry().width(), geometry().height());
-
-    if (m_isEnd) {
-        if (m_isPressed) {
-            drawCornerImage(m_segmentSelectedEnd, &p, geom, 2, 0, 2, 0);
-        } else if (m_isHovering) {
-            drawCornerImage(m_segmentHoverEnd, &p, geom, 2, 0, 2, 0);
-        } else {
-            drawCornerImage(m_segmentEnd, &p, geom, 2, 0, 2, 0);
-        }
-    } else {
-        if (m_isPressed) {
-            drawCornerImage(m_segmentSelected, &p, geom, 2, 0, 12, 0);
-        } else if (m_isHovering) {
-            drawCornerImage(m_segmentHover, &p, geom, 2, 0, 12, 0);
-        } else {
-            drawCornerImage(m_segment, &p, geom, 2, 0, 12, 0);
-        }
-    }
-    p.setPen(QColor(Qt::white));
-    QFontMetrics fm(p.font());
-    QString textToDraw = fm.elidedText(text(), Qt::ElideRight, geom.width() - m_textPos.x());
-
-    p.drawText(QRectF(m_textPos.x(), 4, geom.width(), geom.height()), textToDraw);
-}
-
-void CrumblePathButton::tintImages()
-{
-    tintImage(m_segmentEnd, m_baseColor);
-    tintImage(m_segmentSelectedEnd, m_baseColor);
-    tintImage(m_segmentHoverEnd, m_baseColor);
-    tintImage(m_segmentSelected, m_baseColor);
-    tintImage(m_segmentHover, m_baseColor);
-    tintImage(m_segment, m_baseColor);
-}
-
-void CrumblePathButton::leaveEvent(QEvent *e)
-{
-    QPushButton::leaveEvent(e);
-    m_isHovering = false;
-    update();
-}
-
-void CrumblePathButton::mouseMoveEvent(QMouseEvent *e)
-{
-    QPushButton::mouseMoveEvent(e);
-    m_isHovering = true;
-    update();
-}
-
-void CrumblePathButton::mousePressEvent(QMouseEvent *e)
-{
-    QPushButton::mousePressEvent(e);
-    m_isPressed = true;
-    update();
-}
-
-void CrumblePathButton::mouseReleaseEvent(QMouseEvent *e)
-{
-    QPushButton::mouseReleaseEvent(e);
-    m_isPressed = false;
-    update();
-}
-
-void CrumblePathButton::setSegmentType(int type)
-{
-    bool useLeftPadding = !(type & FirstSegment);
-    m_isEnd = (type & LastSegment);
-    m_textPos.setX(useLeftPadding ? 18 : 4);
-}
-
-struct CrumblePathPrivate {
-    explicit CrumblePathPrivate(CrumblePath *q);
-
-    QColor m_baseColor;
-    QList<CrumblePathButton*> m_buttons;
-    QWidget *m_background;
-};
-
-CrumblePathPrivate::CrumblePathPrivate(CrumblePath *q) :
-    m_baseColor(0x666666),
-    m_background(new QWidget(q))
-{
-}
-
-//
-// CrumblePath
-//
-CrumblePath::CrumblePath(QWidget *parent) :
-    QWidget(parent), d(new CrumblePathPrivate(this))
-{
-    setMinimumHeight(25);
-    setMaximumHeight(25);
-    setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Minimum);
-
-    setBackgroundStyle();
-    d->m_background->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred);
-}
-
-CrumblePath::~CrumblePath()
-{
-    qDeleteAll(d->m_buttons);
-    d->m_buttons.clear();
-}
-
-void CrumblePath::setBackgroundStyle()
-{
-    d->m_background->setStyleSheet("QWidget { background-color:" + d->m_baseColor.name() + ";}");
-}
-
-void CrumblePath::pushElement(const QString &title)
-{
-    CrumblePathButton *newButton = new CrumblePathButton(title, this);
-    newButton->hide();
-    connect(newButton, SIGNAL(clicked()), SLOT(mapClickToIndex()));
-    connect(newButton, SIGNAL(customContextMenuRequested(QPoint)), SLOT(mapContextMenuRequestToIndex()));
-
-    int segType = CrumblePathButton::MiddleSegment;
-    if (!d->m_buttons.isEmpty()) {
-        if (d->m_buttons.length() == 1)
-            segType = segType | CrumblePathButton::FirstSegment;
-        d->m_buttons.last()->setSegmentType(segType);
-    } else {
-        segType = CrumblePathButton::FirstSegment | CrumblePathButton::LastSegment;
-        newButton->setSegmentType(segType);
-    }
-    d->m_buttons.append(newButton);
-
-    resizeButtons();
-}
-
-void CrumblePath::popElement()
-{
-    QWidget *last = d->m_buttons.last();
-    d->m_buttons.removeLast();
-    last->setParent(0);
-    last->deleteLater();
-
-    int segType = CrumblePathButton::MiddleSegment | CrumblePathButton::LastSegment;
-    if (!d->m_buttons.isEmpty()) {
-        if (d->m_buttons.length() == 1)
-            segType = CrumblePathButton::FirstSegment | CrumblePathButton::LastSegment;
-        d->m_buttons.last()->setSegmentType(segType);
-    }
-    resizeButtons();
-}
-
-void CrumblePath::clear()
-{
-    while (!d->m_buttons.isEmpty()) {
-        popElement();
-    }
-}
-
-void CrumblePath::resizeEvent(QResizeEvent *)
-{
-    resizeButtons();
-}
-
-void CrumblePath::resizeButtons()
-{
-    int buttonMinWidth = 0;
-    int buttonMaxWidth = 0;
-    int totalWidthLeft = width();
-
-    if (d->m_buttons.length() >= 1) {
-        QPoint nextElementPosition(0,0);
-
-        d->m_buttons[0]->raise();
-        // rearrange all items so that the first item is on top (added last).
-        for(int i = 0; i < d->m_buttons.length() ; ++i) {
-            CrumblePathButton *button = d->m_buttons[i];
-
-            QFontMetrics fm(button->font());
-            buttonMinWidth = ArrowBorderSize + fm.width(button->text()) + ArrowBorderSize * 2 ;
-            buttonMaxWidth = (totalWidthLeft + ArrowBorderSize * (d->m_buttons.length() - i)) / (d->m_buttons.length() - i);
-
-            if (buttonMinWidth > buttonMaxWidth && i < d->m_buttons.length() - 1) {
-                buttonMinWidth = buttonMaxWidth;
-            } else if (i > 3 && (i == d->m_buttons.length() - 1)) {
-                buttonMinWidth = width() - nextElementPosition.x();
-                buttonMaxWidth = buttonMinWidth;
-            }
-
-            button->setMinimumWidth(buttonMinWidth);
-            button->setMaximumWidth(buttonMaxWidth);
-            button->move(nextElementPosition);
-
-            nextElementPosition.rx() += button->width() - ArrowBorderSize;
-            totalWidthLeft -= button->width();
-
-            button->show();
-            if (i > 0)
-                button->stackUnder(d->m_buttons[i - 1]);
-        }
-
-    }
-
-    d->m_background->setGeometry(0,0, width(), height());
-    d->m_background->update();
-}
-
-void CrumblePath::mapClickToIndex()
-{
-    QObject *element = sender();
-    for (int i = 0; i < d->m_buttons.length(); ++i) {
-        if (d->m_buttons[i] == element) {
-            emit elementClicked(i);
-            return;
-        }
-    }
-}
-
-void CrumblePath::mapContextMenuRequestToIndex()
-{
-    QObject *element = sender();
-    for (int i = 0; i < d->m_buttons.length(); ++i) {
-        if (d->m_buttons[i] == element) {
-            emit elementContextMenuRequested(i);
-            return;
-        }
-    }
-}
-
diff --git a/share/qtcreator/qml/qmlobserver/crumblepath.h b/share/qtcreator/qml/qmlobserver/crumblepath.h
deleted file mode 100644
index 188992db35..0000000000
--- a/share/qtcreator/qml/qmlobserver/crumblepath.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/**************************************************************************
-**
-** This file is part of Qt Creator
-**
-** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
-**
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** Commercial Usage
-**
-** Licensees holding valid Qt Commercial licenses may use this file in
-** accordance with the Qt Commercial License Agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Nokia.
-**
-** GNU Lesser General Public License Usage
-**
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at http://qt.nokia.com/contact.
-**
-**************************************************************************/
-
-#ifndef CRUMBLEPATH_H
-#define CRUMBLEPATH_H
-
-#include <QtGui/QWidget>
-
-QT_FORWARD_DECLARE_CLASS(QResizeEvent);
-
-struct CrumblePathPrivate;
-
-class CrumblePath : public QWidget
-{
-    Q_OBJECT
-public:
-    explicit CrumblePath(QWidget *parent = 0);
-    ~CrumblePath();
-
-public slots:
-    void pushElement(const QString &title);
-    void popElement();
-    void clear();
-
-signals:
-    void elementClicked(int index);
-    void elementContextMenuRequested(int index);
-
-protected:
-    void resizeEvent(QResizeEvent *);
-
-private slots:
-    void mapClickToIndex();
-    void mapContextMenuRequestToIndex();
-
-private:
-    void resizeButtons();
-    void setBackgroundStyle();
-
-private:
-    QScopedPointer<CrumblePathPrivate> d;
-};
-
-#endif // CRUMBLEPATH_H
diff --git a/share/qtcreator/qml/qmlobserver/crumblepath.qrc b/share/qtcreator/qml/qmlobserver/crumblepath.qrc
deleted file mode 100644
index 1c0897973c..0000000000
--- a/share/qtcreator/qml/qmlobserver/crumblepath.qrc
+++ /dev/null
@@ -1,10 +0,0 @@
-<RCC>
-    <qresource prefix="/crumblepath">
-        <file>images/crumblepath-segment-end.png</file>
-        <file>images/crumblepath-segment-hover-end.png</file>
-        <file>images/crumblepath-segment-hover.png</file>
-        <file>images/crumblepath-segment-selected-end.png</file>
-        <file>images/crumblepath-segment-selected.png</file>
-        <file>images/crumblepath-segment.png</file>
-    </qresource>
-</RCC>
diff --git a/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-end.png b/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-end.png
deleted file mode 100644
index 1fc371cfec..0000000000
--- a/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-end.png
+++ /dev/null
diff --git a/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-hover-end.png b/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-hover-end.png
deleted file mode 100644
index 5663d29ee6..0000000000
--- a/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-hover-end.png
+++ /dev/null
diff --git a/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-hover.png b/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-hover.png
deleted file mode 100644
index 741f0575dd..0000000000
--- a/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-hover.png
+++ /dev/null
diff --git a/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-selected-end.png b/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-selected-end.png
deleted file mode 100644
index 6ef4e05b45..0000000000
--- a/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-selected-end.png
+++ /dev/null
diff --git a/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-selected.png b/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-selected.png
deleted file mode 100644
index c674099b5a..0000000000
--- a/share/qtcreator/qml/qmlobserver/images/crumblepath-segment-selected.png
+++ /dev/null
diff --git a/share/qtcreator/qml/qmlobserver/images/crumblepath-segment.png b/share/qtcreator/qml/qmlobserver/images/crumblepath-segment.png
deleted file mode 100644
index ad6e7165f6..0000000000
--- a/share/qtcreator/qml/qmlobserver/images/crumblepath-segment.png
+++ /dev/null
diff --git a/share/qtcreator/qml/qmlobserver/qml.pri b/share/qtcreator/qml/qmlobserver/qml.pri
index 08da6e4cfe..7e485d3984 100644
--- a/share/qtcreator/qml/qmlobserver/qml.pri
+++ b/share/qtcreator/qml/qmlobserver/qml.pri
@@ -15,18 +15,15 @@ HEADERS += $$PWD/qmlruntime.h \
            $$PWD/proxysettings.h \
            $$PWD/qdeclarativetester.h \
            $$PWD/deviceorientation.h \
-           $$PWD/loggerwidget.h \
-           $$PWD/crumblepath.h
+           $$PWD/loggerwidget.h
 
 
 SOURCES += $$PWD/qmlruntime.cpp \
            $$PWD/proxysettings.cpp \
            $$PWD/qdeclarativetester.cpp \
-           $$PWD/loggerwidget.cpp \
-           $$PWD/crumblepath.cpp
+           $$PWD/loggerwidget.cpp
 
-RESOURCES += $$PWD/qmlruntime.qrc \
-    crumblepath.qrc
+RESOURCES += $$PWD/qmlruntime.qrc
 
 OTHER_FILES += toolbarstyle.css
 
diff --git a/share/qtcreator/qml/qmlobserver/qmlruntime.cpp b/share/qtcreator/qml/qmlobserver/qmlruntime.cpp
index 36d83d9a00..d35c18d4a9 100644
--- a/share/qtcreator/qml/qmlobserver/qmlruntime.cpp
+++ b/share/qtcreator/qml/qmlobserver/qmlruntime.cpp
@@ -57,7 +57,6 @@
 #include <qdeclarativeviewobserver.h>
 #include <qdeclarativeobserverservice.h>
 
-#include "crumblepath.h"
 #include "qmlruntime.h"
 #include <qdeclarativecontext.h>
 #include <qdeclarativeengine.h>
@@ -534,32 +533,6 @@ QNetworkAccessManager *NetworkAccessManagerFactory::create(QObject *parent)
     return manager;
 }
 
-//
-// Event filter that ensures the crumble path width is always the canvas width
-//
-class CrumblePathResizer : public QObject
-{
-    Q_OBJECT
-public:
-    CrumblePathResizer(CrumblePath *crumblePathWidget, QObject *parent = 0) :
-        QObject(parent),
-        m_crumblePathWidget(crumblePathWidget)
-    {
-    }
-
-    bool eventFilter(QObject *obj, QEvent *event)
-    {
-        if (event->type() == QEvent::Resize) {
-            QResizeEvent *resizeEvent = static_cast<QResizeEvent *>(event);
-            m_crumblePathWidget->resize(resizeEvent->size().width(), m_crumblePathWidget->height());
-        }
-        return QObject::eventFilter(obj, event);
-    }
-
-private:
-    QWidget *m_crumblePathWidget;
-};
-
 QString QDeclarativeViewer::getVideoFileName()
 {
     QString title = convertAvailable || ffmpegAvailable ? tr("Save Video File") : tr("Save PNG Frames");
@@ -582,7 +555,6 @@ QDeclarativeViewer::QDeclarativeViewer(QWidget *parent, Qt::WindowFlags flags)
       , tester(0)
       , useQmlFileBrowser(true)
       , m_centralWidget(0)
-      , m_crumblePathWidget(0)
       , translator(0)
 {
     QDeclarativeViewer::registerTypes();
@@ -620,18 +592,6 @@ QDeclarativeViewer::QDeclarativeViewer(QWidget *parent, Qt::WindowFlags flags)
     canvas = new QDeclarativeView(this);
     observer = new QmlJSDebugger::QDeclarativeViewObserver(canvas, this);
     new QmlJSDebugger::JSDebuggerAgent(canvas->engine());
-    if (!(flags & Qt::FramelessWindowHint)) {
-        m_crumblePathWidget = new CrumblePath(canvas);
-#ifndef Q_WS_MAC
-        m_crumblePathWidget->setStyleSheet("QWidget { border-bottom: 1px solid black; }");
-#endif
-        m_crumblePathWidget->setVisible(observer->designModeBehavior());
-
-        // CrumblePath is not in a layout, so that it overlays the central widget
-        // The event filter ensures that its width stays in sync nevertheless
-        CrumblePathResizer *resizer = new CrumblePathResizer(m_crumblePathWidget, m_crumblePathWidget);
-        canvas->installEventFilter(resizer);
-    }
 
     m_centralWidget = new QWidget(this);
     QVBoxLayout *layout = new QVBoxLayout(m_centralWidget);
@@ -650,13 +610,6 @@ QDeclarativeViewer::QDeclarativeViewer(QWidget *parent, Qt::WindowFlags flags)
     QObject::connect(observer, SIGNAL(reloadRequested()), this, SLOT(reload()));
     QObject::connect(canvas, SIGNAL(sceneResized(QSize)), this, SLOT(sceneResized(QSize)));
     QObject::connect(canvas, SIGNAL(statusChanged(QDeclarativeView::Status)), this, SLOT(statusChanged()));
-    if (m_crumblePathWidget) {
-        QObject::connect(observer, SIGNAL(inspectorContextCleared()), m_crumblePathWidget, SLOT(clear()));
-        QObject::connect(observer, SIGNAL(inspectorContextPushed(QString)), m_crumblePathWidget, SLOT(pushElement(QString)));
-        QObject::connect(observer, SIGNAL(inspectorContextPopped()), m_crumblePathWidget, SLOT(popElement()));
-        QObject::connect(m_crumblePathWidget, SIGNAL(elementClicked(int)), observer, SLOT(setObserverContext(int)));
-        QObject::connect(observer, SIGNAL(designModeBehaviorChanged(bool)), m_crumblePathWidget, SLOT(setVisible(bool)));
-    }
     QObject::connect(canvas->engine(), SIGNAL(quit()), QCoreApplication::instance (), SLOT(quit()));
 
     QObject::connect(warningsWidget(), SIGNAL(opened()), this, SLOT(warningsWidgetOpened()));
diff --git a/share/qtcreator/qml/qmlobserver/qmlruntime.h b/share/qtcreator/qml/qmlobserver/qmlruntime.h
index 630c30c324..7c30998dfc 100644
--- a/share/qtcreator/qml/qmlobserver/qmlruntime.h
+++ b/share/qtcreator/qml/qmlobserver/qmlruntime.h
@@ -53,8 +53,6 @@ namespace QmlJSDebugger {
     class QDeclarativeViewObserver;
 }
 
-class CrumblePath;
-
 QT_BEGIN_NAMESPACE
 
 class QDeclarativeView;
@@ -215,7 +213,6 @@ private:
     bool useQmlFileBrowser;
 
     QWidget *m_centralWidget;
-    CrumblePath *m_crumblePathWidget;
 
     QTranslator *translator;
     void loadTranslationFile(const QString& directory);
diff --git a/src/plugins/qt4projectmanager/qmlobservertool.cpp b/src/plugins/qt4projectmanager/qmlobservertool.cpp
index 623e527d19..5d5bbdf8fb 100644
--- a/src/plugins/qt4projectmanager/qmlobservertool.cpp
+++ b/src/plugins/qt4projectmanager/qmlobservertool.cpp
@@ -125,7 +125,6 @@ QString QmlObserverTool::copy(const QString &qtInstallData, QString *errorMessag
 
     QStringList files;
     files << QLatin1String("main.cpp") << QLatin1String("qmlobserver.pro")
-          << QLatin1String("crumblepath.cpp") << QLatin1String("crumblepath.h")
           << QLatin1String("deviceorientation.cpp") << QLatin1String("deviceorientation.h")
           << QLatin1String("deviceorientation_maemo5.cpp") << QLatin1String("Info_mac.plist")
           << QLatin1String("loggerwidget.cpp") << QLatin1String("loggerwidget.h")
@@ -140,11 +139,7 @@ QString QmlObserverTool::copy(const QString &qtInstallData, QString *errorMessag
           << QLatin1String("content/Browser.qml") << QLatin1String("content/images/folder.png")
           << QLatin1String("content/images/titlebar.png") << QLatin1String("content/images/titlebar.sci")
           << QLatin1String("content/images/up.png")
-          << QLatin1String("LICENSE.LGPL") << QLatin1String("LGPL_EXCEPTION.TXT")
-          << QLatin1String("crumblepath.qrc") << QLatin1String("images/crumblepath-segment-end.png")
-          << QLatin1String("images/crumblepath-segment-hover-end.png") << QLatin1String("images/crumblepath-segment-hover.png")
-          << QLatin1String("images/crumblepath-segment-selected-end.png") << QLatin1String("images/crumblepath-segment-selected.png")
-          << QLatin1String("images/crumblepath-segment.png");
+          << QLatin1String("LICENSE.LGPL") << QLatin1String("LGPL_EXCEPTION.TXT");
 
     QStringList debuggerLibFiles;
     debuggerLibFiles << QLatin1String("jsdebuggeragent.cpp")