git.sur5r.net Git - minitube/blob - src/searchlineedit.cpp

   1 #include "searchlineedit.h"
   2 #include "autocomplete.h"
   3 #include "iconutils.h"
   4
   5 class SearchButton : public QAbstractButton {
   6
   7 public:
   8     SearchButton(QWidget *parent = 0);
   9     QMenu *m_menu;
  10
  11 protected:
  12     void paintEvent(QPaintEvent *e);
  13     void mousePressEvent(QMouseEvent *e);
  14
  15 };
  16
  17 SearchButton::SearchButton(QWidget *parent)
  18     : QAbstractButton(parent),
  19     m_menu(0) {
  20     setObjectName(QLatin1String("SearchButton"));
  21     setCursor(Qt::ArrowCursor);
  22     setFocusPolicy(Qt::NoFocus);
  23 }
  24
  25 void SearchButton::mousePressEvent(QMouseEvent *e) {
  26     if (m_menu && e->button() == Qt::LeftButton) {
  27         QWidget *p = parentWidget();
  28         if (p) {
  29             QPoint r = p->mapToGlobal(QPoint(0, p->height()));
  30             m_menu->exec(QPoint(r.x() + height() / 2, r.y()));
  31         }
  32         e->accept();
  33     }
  34     QAbstractButton::mousePressEvent(e);
  35 }
  36
  37 void SearchButton::paintEvent(QPaintEvent *e) {
  38     Q_UNUSED(e);
  39     QPainter painter(this);
  40     const int h = height();
  41     int iconSize = 16;
  42     if (h > 30) iconSize = 22;
  43     QPixmap p = IconUtils::icon("edit-find").pixmap(iconSize, iconSize);
  44     int x = (width() - p.width()) / 2;
  45     int y = (h - p.height()) / 2;
  46     painter.drawPixmap(x, y, p);
  47 }
  48
  49 SearchLineEdit::SearchLineEdit(QWidget *parent) : ExLineEdit(parent), searchButton(new SearchButton(this)) {
  50     connect(m_lineEdit, SIGNAL(textChanged(const QString &)), SIGNAL(textChanged(const QString &)));
  51     connect(m_lineEdit, SIGNAL(textEdited(const QString &)), SIGNAL(textEdited(const QString &)));
  52     connect(m_lineEdit, SIGNAL(returnPressed()), SLOT(returnPressed()));
  53
  54     setLeftWidget(searchButton);
  55     inactiveText = tr("Search");
  56
  57     QSizePolicy policy = sizePolicy();
  58     setSizePolicy(QSizePolicy::Preferred, policy.verticalPolicy());
  59
  60     // completion
  61     autoComplete = new AutoComplete(this, m_lineEdit);
  62     connect(autoComplete, SIGNAL(suggestionAccepted(Suggestion*)), SIGNAL(suggestionAccepted(Suggestion*)));
  63 }
  64
  65 void SearchLineEdit::paintEvent(QPaintEvent *e) {
  66     if (m_lineEdit->text().isEmpty() && !hasFocus() && !inactiveText.isEmpty()) {
  67         ExLineEdit::paintEvent(e);
  68         QStyleOptionFrameV2 panel;
  69         initStyleOption(&panel);
  70         QRect r = style()->subElementRect(QStyle::SE_LineEditContents, &panel, this);
  71         QFontMetrics fm = fontMetrics();
  72         int horizontalMargin = m_lineEdit->x();
  73         QRect lineRect(horizontalMargin + r.x(), r.y() + (r.height() - fm.height() + 1) / 2,
  74                        r.width() - 2 * horizontalMargin, fm.height());
  75         QPainter painter(this);
  76         painter.setPen(palette().brush(QPalette::Disabled, QPalette::Text).color());
  77         painter.drawText(lineRect, Qt::AlignLeft | Qt::AlignVCenter, inactiveText);
  78     } else {
  79         ExLineEdit::paintEvent(e);
  80     }
  81 }
  82
  83 void SearchLineEdit::resizeEvent(QResizeEvent *e) {
  84     updateGeometries();
  85     ExLineEdit::resizeEvent(e);
  86 }
  87
  88 void SearchLineEdit::updateGeometries() {
  89     int menuHeight = height();
  90     int menuWidth = menuHeight + 1;
  91     if (!searchButton->m_menu)
  92         menuWidth = (menuHeight / 5) * 4;
  93     searchButton->resize(QSize(menuWidth, menuHeight));
  94 }
  95
  96 void SearchLineEdit::setInactiveText(const QString &text) {
  97     inactiveText = text;
  98 }
  99
 100 void SearchLineEdit::setText(const QString &text) {
 101     m_lineEdit->setText(text);
 102 }
 103
 104 AutoComplete *SearchLineEdit::getAutoComplete() {
 105     return autoComplete;
 106 }
 107
 108 void SearchLineEdit::setMenu(QMenu *menu) {
 109     if (searchButton->m_menu)
 110         searchButton->m_menu->deleteLater();
 111     searchButton->m_menu = menu;
 112     updateGeometries();
 113 }
 114
 115 QMenu *SearchLineEdit::menu() const {
 116     if (!searchButton->m_menu) {
 117         searchButton->m_menu = new QMenu(searchButton);
 118         if (isVisible())
 119             (const_cast<SearchLineEdit*>(this))->updateGeometries();
 120     }
 121     return searchButton->m_menu;
 122 }
 123
 124 void SearchLineEdit::returnPressed() {
 125     QString text = m_lineEdit->text().simplified();
 126     if (!text.isEmpty()) {
 127         autoComplete->preventSuggest();
 128         emit search(text);
 129     }
 130 }
 131
 132 void SearchLineEdit::enableSuggest() {
 133     autoComplete->enableSuggest();
 134 }
 135
 136 void SearchLineEdit::preventSuggest() {
 137     autoComplete->preventSuggest();
 138 }
 139
 140 void SearchLineEdit::selectAll() {
 141     m_lineEdit->selectAll();
 142 }
 143
 144 void SearchLineEdit::setSuggester(Suggester *suggester) {
 145     autoComplete->setSuggester(suggester);
 146 }
 147
 148 void SearchLineEdit::focusInEvent(QFocusEvent *e) {
 149     ExLineEdit::focusInEvent(e);
 150     enableSuggest();
 151 }
 152
 153 void SearchLineEdit::emitTextChanged(const QString &text) {
 154     autoComplete->enableSuggest();
 155     emit textEdited(text);
 156 }
 157
 158 QString SearchLineEdit::text() {
 159     return m_lineEdit->text();
 160 }
 161
 162 QLineEdit *SearchLineEdit::getLineEdit() {
 163     return m_lineEdit;
 164 }
 165
 166 void SearchLineEdit::setEnabled(bool enabled) {
 167     ExLineEdit::setEnabled(enabled);
 168     emit enabledChanged(enabled);
 169 }