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     ExLineEdit::paintEvent(e);
  67     if (m_lineEdit->text().isEmpty() && !hasFocus() && !inactiveText.isEmpty()) {
  68         QStyleOptionFrame 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     }
  79 }
  80
  81 void SearchLineEdit::resizeEvent(QResizeEvent *e) {
  82     updateGeometries();
  83     ExLineEdit::resizeEvent(e);
  84 }
  85
  86 void SearchLineEdit::updateGeometries() {
  87     int menuHeight = height();
  88     int menuWidth = menuHeight + 1;
  89     if (!searchButton->m_menu)
  90         menuWidth = (menuHeight / 5) * 4;
  91     searchButton->resize(QSize(menuWidth, menuHeight));
  92 }
  93
  94 void SearchLineEdit::setInactiveText(const QString &text) {
  95     inactiveText = text;
  96 }
  97
  98 void SearchLineEdit::setText(const QString &text) {
  99     m_lineEdit->setText(text);
 100 }
 101
 102 AutoComplete *SearchLineEdit::getAutoComplete() {
 103     return autoComplete;
 104 }
 105
 106 void SearchLineEdit::setMenu(QMenu *menu) {
 107     if (searchButton->m_menu)
 108         searchButton->m_menu->deleteLater();
 109     searchButton->m_menu = menu;
 110     updateGeometries();
 111 }
 112
 113 QMenu *SearchLineEdit::menu() const {
 114     if (!searchButton->m_menu) {
 115         searchButton->m_menu = new QMenu(searchButton);
 116         if (isVisible())
 117             (const_cast<SearchLineEdit*>(this))->updateGeometries();
 118     }
 119     return searchButton->m_menu;
 120 }
 121
 122 void SearchLineEdit::returnPressed() {
 123     QString text = m_lineEdit->text().simplified();
 124     if (!text.isEmpty()) {
 125         autoComplete->preventSuggest();
 126         emit search(text);
 127     }
 128 }
 129
 130 void SearchLineEdit::enableSuggest() {
 131     autoComplete->enableSuggest();
 132 }
 133
 134 void SearchLineEdit::preventSuggest() {
 135     autoComplete->preventSuggest();
 136 }
 137
 138 void SearchLineEdit::selectAll() {
 139     m_lineEdit->selectAll();
 140 }
 141
 142 void SearchLineEdit::setSuggester(Suggester *suggester) {
 143     autoComplete->setSuggester(suggester);
 144 }
 145
 146 void SearchLineEdit::focusInEvent(QFocusEvent *e) {
 147     ExLineEdit::focusInEvent(e);
 148     enableSuggest();
 149 }
 150
 151 void SearchLineEdit::emitTextChanged(const QString &text) {
 152     autoComplete->enableSuggest();
 153     emit textEdited(text);
 154 }
 155
 156 QString SearchLineEdit::text() {
 157     return m_lineEdit->text();
 158 }
 159
 160 QLineEdit *SearchLineEdit::getLineEdit() {
 161     return m_lineEdit;
 162 }
 163
 164 void SearchLineEdit::setEnabled(bool enabled) {
 165     ExLineEdit::setEnabled(enabled);
 166     emit enabledChanged(enabled);
 167 }