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  37
  38 #include "urllineedit.h"
  39 #include "searchlineedit.h"
  40
  41 #include <QtCore/QEvent>
  42
  43 #include <QtGui/QApplication>
  44 #include <QtGui/QCompleter>
  45 #include <QtGui/QFocusEvent>
  46 #include <QtGui/QHBoxLayout>
  47 #include <QtGui/QLabel>
  48 #include <QtGui/QLineEdit>
  49 #include <QtGui/QPainter>
  50 #include <QtGui/QStyle>
  51 #include <QtGui/QStyleOptionFrameV2>
  52
  53 #include <QtCore/QDebug>
  54
  55 ExLineEdit::ExLineEdit(QWidget *parent)
  56     : QWidget(parent)
  57     , m_leftWidget(0)
  58     , m_lineEdit(new QLineEdit(this))
  59     , m_clearButton(0)
  60 {
  61     setFocusPolicy(m_lineEdit->focusPolicy());
  62     setAttribute(Qt::WA_InputMethodEnabled);
  63     setSizePolicy(m_lineEdit->sizePolicy());
  64     setBackgroundRole(m_lineEdit->backgroundRole());
  65     setMouseTracking(true);
  66     setAcceptDrops(true);
  67     setAttribute(Qt::WA_MacShowFocusRect, true);
  68     QPalette p = m_lineEdit->palette();
  69     setPalette(p);
  70
  71     // line edit
  72     m_lineEdit->setFrame(false);
  73     m_lineEdit->setFocusProxy(this);
  74     m_lineEdit->setAttribute(Qt::WA_MacShowFocusRect, false);
  75     QPalette clearPalette = m_lineEdit->palette();
  76     clearPalette.setBrush(QPalette::Base, QBrush(Qt::transparent));
  77     m_lineEdit->setPalette(clearPalette);
  78
  79     // clearButton
  80     m_clearButton = new ClearButton(this);
  81     connect(m_clearButton, SIGNAL(clicked()),
  82             m_lineEdit, SLOT(clear()));
  83     connect(m_lineEdit, SIGNAL(textChanged(const QString&)),
  84             m_clearButton, SLOT(textChanged(const QString&)));
  85 }
  86
  87 void ExLineEdit::setFont(const QFont &font) {
  88     m_lineEdit->setFont(font);
  89     updateGeometries();
  90 }
  91
  92 void ExLineEdit::setLeftWidget(QWidget *widget)
  93 {
  94     m_leftWidget = widget;
  95 }
  96
  97 QWidget *ExLineEdit::leftWidget() const
  98 {
  99     return m_leftWidget;
 100 }
 101
 102 void ExLineEdit::resizeEvent(QResizeEvent *event)
 103 {
 104     Q_ASSERT(m_leftWidget);
 105     updateGeometries();
 106     QWidget::resizeEvent(event);
 107 }
 108
 109 void ExLineEdit::updateGeometries()
 110 {
 111     QStyleOptionFrameV2 panel;
 112     initStyleOption(&panel);
 113     QRect rect = style()->subElementRect(QStyle::SE_LineEditContents, &panel, this);
 114
 115     int padding = 3;
 116     // int height = rect.height() + padding*2;
 117     int width = rect.width();
 118
 119     // int m_leftWidgetHeight = m_leftWidget->height();
 120     m_leftWidget->setGeometry(rect.x() + 2,          0,
 121                               m_leftWidget->width(), m_leftWidget->height());
 122
 123     int clearButtonWidth = this->height();
 124     m_lineEdit->setGeometry(m_leftWidget->x() + m_leftWidget->width(),        padding,
 125                             width - clearButtonWidth - m_leftWidget->width(), this->height() - padding*2);
 126
 127     m_clearButton->setGeometry(this->width() - clearButtonWidth, 0,
 128                                clearButtonWidth, this->height());
 129 }
 130
 131 void ExLineEdit::initStyleOption(QStyleOptionFrameV2 *option) const
 132 {
 133     option->initFrom(this);
 134     option->rect = contentsRect();
 135     option->lineWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth, option, this);
 136     option->midLineWidth = 0;
 137     option->state |= QStyle::State_Sunken;
 138     if (m_lineEdit->isReadOnly())
 139         option->state |= QStyle::State_ReadOnly;
 140 #ifdef QT_KEYPAD_NAVIGATION
 141     if (hasEditFocus())
 142         option->state |= QStyle::State_HasEditFocus;
 143 #endif
 144     option->features = QStyleOptionFrameV2::None;
 145 }
 146
 147 QSize ExLineEdit::sizeHint() const
 148 {
 149     m_lineEdit->setFrame(true);
 150     QSize size = m_lineEdit->sizeHint();
 151     m_lineEdit->setFrame(false);
 152     return size;
 153 }
 154
 155 void ExLineEdit::focusInEvent(QFocusEvent *event)
 156 {
 157     m_lineEdit->event(event);
 158     QWidget::focusInEvent(event);
 159 }
 160
 161 void ExLineEdit::focusOutEvent(QFocusEvent *event)
 162 {
 163     m_lineEdit->event(event);
 164
 165     if (m_lineEdit->completer()) {
 166         connect(m_lineEdit->completer(), SIGNAL(activated(QString)),
 167                          m_lineEdit, SLOT(setText(QString)));
 168         connect(m_lineEdit->completer(), SIGNAL(highlighted(QString)),
 169                          m_lineEdit, SLOT(_q_completionHighlighted(QString)));
 170     }
 171     QWidget::focusOutEvent(event);
 172 }
 173
 174 void ExLineEdit::keyPressEvent(QKeyEvent *event)
 175 {
 176     m_lineEdit->event(event);
 177     QWidget::keyPressEvent(event);
 178 }
 179
 180 bool ExLineEdit::event(QEvent *event)
 181 {
 182     if (event->type() == QEvent::ShortcutOverride)
 183         m_lineEdit->event(event);
 184     return QWidget::event(event);
 185 }
 186
 187 void ExLineEdit::paintEvent(QPaintEvent *)
 188 {
 189     QPainter p(this);
 190     QStyleOptionFrameV2 panel;
 191     initStyleOption(&panel);
 192     style()->drawPrimitive(QStyle::PE_PanelLineEdit, &panel, &p, this);
 193 }