2 files changed, 115 insertions, 100 deletions

diff --git a/tools/designer/src/lib/shared/filterwidget.cpp b/tools/designer/src/lib/shared/filterwidget.cpp
index 6c73a08..84810cb 100644
--- a/tools/designer/src/lib/shared/filterwidget.cpp
+++ b/tools/designer/src/lib/shared/filterwidget.cpp
@@ -44,13 +44,17 @@
 
 #include <QtGui/QVBoxLayout>
 #include <QtGui/QHBoxLayout>
-#include <QtGui/QPushButton>
 #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 };
 
@@ -61,12 +65,44 @@ namespace qdesigner_internal {
 HintLineEdit::HintLineEdit(QWidget *parent) :
     QLineEdit(parent),
     m_defaultFocusPolicy(focusPolicy()),
-    m_hintColor(QColor(0xbbbbbb)),
-    m_refuseFocus(false),
-    m_showingHintText(false)
+    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
+    QPixmap iconpixmap = icon().pixmap(ICONBUTTON_SIZE, ICONBUTTON_SIZE, isDown() ?
+                                       QIcon::Selected : QIcon::Normal);
+    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;
@@ -111,92 +147,60 @@ void HintLineEdit::focusInEvent(QFocusEvent *e)
         }
     }
 
-    hideHintText();
     QLineEdit::focusInEvent(e);
 }
 
-void HintLineEdit::focusOutEvent(QFocusEvent *e)
+// ------------------- FilterWidget
+FilterWidget::FilterWidget(QWidget *parent, LayoutMode lm)  :
+    QWidget(parent),
+    m_editor(new HintLineEdit(this)),
+    m_button(new IconButton(m_editor)),
+    m_buttonwidth(0)
 {
-    if (debugFilter)
-        qDebug() << Q_FUNC_INFO;
-    // Focus out: Switch to displaying the hint text unless there is user input
-    showHintText();
-    QLineEdit::focusOutEvent(e);
-}
+    m_editor->setPlaceholderText(tr("Filter"));
 
-QString HintLineEdit::hintText() const
-{
-    return m_hintText;
-}
+    // Let the style determine minimum height for our widget
+    QSize size(ICONBUTTON_SIZE + 2, ICONBUTTON_SIZE + 2);
 
-void HintLineEdit::setHintText(const QString &ht)
-{
-    if (ht == m_hintText)
-        return;
-    hideHintText();
-    m_hintText = ht;
-    if (!hasFocus() && !ht.isEmpty())
-        showHintText();
-}
+    QStyleOptionFrame frameOpt;
+    frameOpt.initFrom(m_editor);
+    QSize adjustedSize = style()->sizeFromContents(QStyle::CT_LineEdit, &frameOpt, size, m_editor);
 
-void HintLineEdit::showHintText(bool force)
-{
-    if (m_showingHintText || m_hintText.isEmpty())
-        return;
-    if (force || text().isEmpty()) {
-        m_showingHintText = true;
-        setText(m_hintText);
-        setTextColor(m_hintColor, &m_textColor);
-    }
-}
-void HintLineEdit::hideHintText()
-{
-    if (m_showingHintText && !m_hintText.isEmpty()) {
-        m_showingHintText = false;
-        setText(QString());
-        setTextColor(m_textColor);
+    // Note KDE does not reserve space for the highlight color
+    if (style()->inherits("OxygenStyle")) {
+        adjustedSize = adjustedSize.expandedTo(QSize(0, 32));
+        size = size.expandedTo(QSize(24, 0));
     }
-}
 
-bool  HintLineEdit::isShowingHintText() const
-{
-    return m_showingHintText;
-}
+    m_editor->setMinimumHeight(adjustedSize.height());
 
-QString  HintLineEdit::typedText() const
-{
-    return m_showingHintText ? QString() : text();
-}
+    // Make room for clear icon
+    QMargins margins = m_editor->textMargins();
+    if (layoutDirection() == Qt::LeftToRight)
+        margins.setRight(size.width());
+    else
+        margins.setLeft(size.width());
 
-void HintLineEdit::setTextColor(const QColor &newColor, QColor *oldColor)
-{
-    QPalette pal = palette();
-    if (oldColor)
-        *oldColor = pal.color(QPalette::Text);
-    pal.setColor(QPalette::Text, newColor);
-    setPalette(pal);}
+    m_editor->setTextMargins(margins);
 
-// ------------------- FilterWidget
-FilterWidget::FilterWidget(QWidget *parent, LayoutMode lm)  :
-    QWidget(parent),
-    m_button(new QPushButton),
-    m_editor(new HintLineEdit)
-{
-    m_editor->setHintText(tr("<Filter>"));
     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);
 
-    m_button->setIcon(createIconSet(QLatin1String("resetproperty.png")));
-    m_button->setIconSize(QSize(8, 8));
-    m_button->setFlat(true);
-    l->addWidget(m_button);
+    // 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)));
@@ -204,25 +208,38 @@ FilterWidget::FilterWidget(QWidget *parent, LayoutMode lm)  :
 
 QString FilterWidget::text() const
 {
-    return m_editor->typedText();
+    return m_editor->text();
 }
 
 void FilterWidget::checkButton(const QString &)
 {
-    m_button->setEnabled(!text().isEmpty());
+    m_button->animateShow(!m_editor->text().isEmpty());
 }
 
 void FilterWidget::reset()
 {
     if (debugFilter)
         qDebug() << Q_FUNC_INFO;
-    if (!text().isEmpty()) {
+
+    if (!m_editor->text().isEmpty()) {
         // Editor has lost focus once this is pressed
-        m_editor->showHintText(true);
+        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();
diff --git a/tools/designer/src/lib/shared/filterwidget_p.h b/tools/designer/src/lib/shared/filterwidget_p.h
index 025d708..423b30e 100644
--- a/tools/designer/src/lib/shared/filterwidget_p.h
+++ b/tools/designer/src/lib/shared/filterwidget_p.h
@@ -58,58 +58,55 @@
 #include <QtGui/QWidget>
 #include <QtGui/QLineEdit>
 #include <QtGui/QColor>
+#include <QtGui/QToolButton>
 
 QT_BEGIN_NAMESPACE
 
-class QPushButton;
+class QToolButton;
 
 namespace qdesigner_internal {
 
-/* A line edit that displays a grayed hintText (like "Type Here to Filter")
- * when not focused and empty. When connecting to the changed signals and
- * querying text, one has to be aware that the text is set to that hint
- * text if isShowingHintText() returns true (that is, does not contain
- * valid user input). This widget should never have initial focus
+/* This widget should never have initial focus
  * (ie, be the first widget of a dialog, else, the hint cannot be displayed.
  * For situations, where it is the only focusable control (widget box),
  * there is a special "refuseFocus()" mode, in which it clears the focus
  * policy and focusses explicitly on click (note that setting Qt::ClickFocus
  * is not sufficient for that as an ActivationFocus will occur). */
 
+#define ICONBUTTON_SIZE 16
+
 class QDESIGNER_SHARED_EXPORT HintLineEdit : public QLineEdit {
     Q_OBJECT
 public:
     explicit HintLineEdit(QWidget *parent = 0);
 
-    QString hintText() const;
-
-    bool isShowingHintText() const;
-
-    // Convenience for accessing the text that returns "" in case of isShowingHintText().
-    QString typedText() const;
-
     bool refuseFocus() const;
     void setRefuseFocus(bool v);
 
-public slots:
-    void setHintText(const QString &ht);
-    void showHintText(bool force = false);
-    void hideHintText();
-
 protected:
     virtual void mousePressEvent(QMouseEvent *event);
     virtual void focusInEvent(QFocusEvent *e);
-    virtual void focusOutEvent(QFocusEvent *e);
 
 private:
-    void setTextColor(const QColor &newColor, QColor *oldColor = 0);
-
     const Qt::FocusPolicy m_defaultFocusPolicy;
-    const QColor m_hintColor;
-    QColor m_textColor;
     bool m_refuseFocus;
-    QString m_hintText;
-    bool m_showingHintText;
+};
+
+// IconButton: This is a simple helper class that represents clickable icons
+
+class IconButton: public QToolButton
+{
+    Q_OBJECT
+    Q_PROPERTY(float fader READ fader WRITE setFader)
+public:
+    IconButton(QWidget *parent);
+    void paintEvent(QPaintEvent *event);
+    float fader() { return m_fader; }
+    void setFader(float value) { m_fader = value; update(); }
+    void animateShow(bool visible);
+
+private:
+    float m_fader;
 };
 
 // FilterWidget: For filtering item views, with reset button Uses HintLineEdit.
@@ -128,7 +125,7 @@ public:
     explicit FilterWidget(QWidget *parent = 0, LayoutMode lm = LayoutAlignRight);
 
     QString text() const;
-
+    void resizeEvent(QResizeEvent *);
     bool refuseFocus() const; // see HintLineEdit
     void setRefuseFocus(bool v);
 
@@ -142,8 +139,9 @@ private slots:
     void checkButton(const QString &text);
 
 private:
-    QPushButton *m_button;
     HintLineEdit *m_editor;
+    IconButton *m_button;
+    int m_buttonwidth;
 };
 } // namespace qdesigner_internal