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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 252 insertions, 0 deletions

diff --git a/src/designer/src/lib/shared/filterwidget.cpp b/src/designer/src/lib/shared/filterwidget.cpp
new file mode 100644
index 000000000..e6c826cf8
--- /dev/null
+++ b/src/designer/src/lib/shared/filterwidget.cpp
@@ -0,0 +1,252 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Designer of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "filterwidget_p.h"
+#include "iconloader_p.h"
+
+#include <QtGui/QVBoxLayout>
+#include <QtGui/QHBoxLayout>
+#include <QtGui/QLineEdit>
+#include <QtGui/QFocusEvent>
+#include <QtGui/QPalette>
+#include <QtGui/QCursor>
+#include <QtGui/QToolButton>
+#include <QtGui/QPainter>
+#include <QtGui/QStyle>
+#include <QtGui/QStyleOption>
+
+#include <QtCore/QDebug>
+#include <QtCore/QPropertyAnimation>
+
+enum { debugFilter = 0 };
+
+QT_BEGIN_NAMESPACE
+
+namespace qdesigner_internal {
+
+HintLineEdit::HintLineEdit(QWidget *parent) :
+    QLineEdit(parent),
+    m_defaultFocusPolicy(focusPolicy()),
+    m_refuseFocus(false)
+{
+}
+
+IconButton::IconButton(QWidget *parent)
+    : QToolButton(parent)
+{
+    setCursor(Qt::ArrowCursor);
+}
+
+void IconButton::paintEvent(QPaintEvent *)
+{
+    QPainter painter(this);
+    // Note isDown should really use the active state but in most styles
+    // this has no proper feedback
+    QIcon::Mode state = QIcon::Disabled;
+    if (isEnabled())
+        state = isDown() ? QIcon::Selected : QIcon::Normal;
+    QPixmap iconpixmap = icon().pixmap(QSize(ICONBUTTON_SIZE, ICONBUTTON_SIZE),
+                                       state, QIcon::Off);
+    QRect pixmapRect = QRect(0, 0, iconpixmap.width(), iconpixmap.height());
+    pixmapRect.moveCenter(rect().center());
+    painter.setOpacity(m_fader);
+    painter.drawPixmap(pixmapRect, iconpixmap);
+}
+
+void IconButton::animateShow(bool visible)
+{
+    if (visible) {
+        QPropertyAnimation *animation = new QPropertyAnimation(this, "fader");
+        animation->setDuration(160);
+        animation->setEndValue(1.0);
+        animation->start(QAbstractAnimation::DeleteWhenStopped);
+    } else {
+        QPropertyAnimation *animation = new QPropertyAnimation(this, "fader");
+        animation->setDuration(160);
+        animation->setEndValue(0.0);
+        animation->start(QAbstractAnimation::DeleteWhenStopped);
+    }
+}
+
+bool HintLineEdit::refuseFocus() const
+{
+    return m_refuseFocus;
+}
+
+void HintLineEdit::setRefuseFocus(bool v)
+{
+    if (v == m_refuseFocus)
+        return;
+    m_refuseFocus = v;
+    setFocusPolicy(m_refuseFocus ? Qt::NoFocus : m_defaultFocusPolicy);
+}
+
+void HintLineEdit::mousePressEvent(QMouseEvent *e)
+{
+    if (debugFilter)
+        qDebug() << Q_FUNC_INFO;
+    // Explicitly focus on click.
+    if (m_refuseFocus && !hasFocus())
+        setFocus(Qt::OtherFocusReason);
+    QLineEdit::mousePressEvent(e);
+}
+
+void HintLineEdit::focusInEvent(QFocusEvent *e)
+{
+    if (debugFilter)
+        qDebug() << Q_FUNC_INFO;
+    if (m_refuseFocus) {
+        // Refuse the focus if the mouse it outside. In addition to the mouse
+        // press logic, this prevents a re-focussing which occurs once
+        // we actually had focus
+        const Qt::FocusReason reason = e->reason();
+        if (reason == Qt::ActiveWindowFocusReason || reason == Qt::PopupFocusReason) {
+            const QPoint mousePos = mapFromGlobal(QCursor::pos());
+            const bool refuse = !geometry().contains(mousePos);
+            if (debugFilter)
+                qDebug() << Q_FUNC_INFO << refuse ;
+            if (refuse) {
+                e->ignore();
+                return;
+            }
+        }
+    }
+
+    QLineEdit::focusInEvent(e);
+}
+
+// ------------------- FilterWidget
+FilterWidget::FilterWidget(QWidget *parent, LayoutMode lm)  :
+    QWidget(parent),
+    m_editor(new HintLineEdit(this)),
+    m_button(new IconButton(m_editor)),
+    m_buttonwidth(0)
+{
+    m_editor->setPlaceholderText(tr("Filter"));
+
+    // Let the style determine minimum height for our widget
+    QSize size(ICONBUTTON_SIZE + 6, ICONBUTTON_SIZE + 2);
+
+    // Note KDE does not reserve space for the highlight color
+    if (style()->inherits("OxygenStyle")) {
+        size = size.expandedTo(QSize(24, 0));
+    }
+
+    // Make room for clear icon
+    QMargins margins = m_editor->textMargins();
+    if (layoutDirection() == Qt::LeftToRight)
+        margins.setRight(size.width());
+    else
+        margins.setLeft(size.width());
+
+    m_editor->setTextMargins(margins);
+
+    QHBoxLayout *l = new QHBoxLayout(this);
+    l->setMargin(0);
+    l->setSpacing(0);
+    if (lm == LayoutAlignRight)
+        l->addItem(new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Minimum));
+
+    l->addWidget(m_editor);
+
+    // KDE has custom icons for this. Notice that icon namings are counter intuitive
+    // If these icons are not avaiable we use the freedesktop standard name before
+    // falling back to a bundled resource
+    QIcon icon = QIcon::fromTheme(layoutDirection() == Qt::LeftToRight ?
+                     QLatin1String("edit-clear-locationbar-rtl") :
+                     QLatin1String("edit-clear-locationbar-ltr"),
+                     QIcon::fromTheme("edit-clear", createIconSet(QLatin1String("cleartext.png"))));
+
+    m_button->setIcon(icon);
+    m_button->setToolTip(tr("Clear text"));
+    connect(m_button, SIGNAL(clicked()), this, SLOT(reset()));
+    connect(m_editor, SIGNAL(textChanged(QString)), this, SLOT(checkButton(QString)));
+    connect(m_editor, SIGNAL(textEdited(QString)), this, SIGNAL(filterChanged(QString)));
+}
+
+QString FilterWidget::text() const
+{
+    return m_editor->text();
+}
+
+void FilterWidget::checkButton(const QString &text)
+{
+    if (m_oldText.isEmpty() || text.isEmpty())
+        m_button->animateShow(!m_editor->text().isEmpty());
+    m_oldText = text;
+}
+
+void FilterWidget::reset()
+{
+    if (debugFilter)
+        qDebug() << Q_FUNC_INFO;
+
+    if (!m_editor->text().isEmpty()) {
+        // Editor has lost focus once this is pressed
+        m_editor->clear();
+        emit filterChanged(QString());
+    }
+}
+
+void FilterWidget::resizeEvent(QResizeEvent *)
+{
+    QRect contentRect = m_editor->rect();
+    if (layoutDirection() == Qt::LeftToRight) {
+        const int iconoffset = m_editor->textMargins().right() + 4;
+        m_button->setGeometry(contentRect.adjusted(m_editor->width() - iconoffset, 0, 0, 0));
+    } else {
+        const int iconoffset = m_editor->textMargins().left() + 4;
+        m_button->setGeometry(contentRect.adjusted(0, 0, -m_editor->width() + iconoffset, 0));
+    }
+}
+
+bool FilterWidget::refuseFocus() const
+{
+    return m_editor->refuseFocus();
+}
+
+void FilterWidget::setRefuseFocus(bool v)
+{
+    m_editor->setRefuseFocus(v);
+}
+} // namespace qdesigner_internal
+
+QT_END_NAMESPACE