Python QStringListModel.index方法代码示例

# 需要导入模块: from PyQt5.Qt import QStringListModel [as 别名]
# 或者: from PyQt5.Qt.QStringListModel import index [as 别名]
class RichTextDelegate(QStyledItemDelegate):  # {{{

    def __init__(self, parent=None, max_width=160):
        QStyledItemDelegate.__init__(self, parent)
        self.max_width = max_width
        self.dummy_model = QStringListModel([' '], self)
        self.dummy_index = self.dummy_model.index(0)

    def to_doc(self, index, option=None):
        doc = QTextDocument()
        if option is not None and option.state & QStyle.State_Selected:
            p = option.palette
            group = (p.Active if option.state & QStyle.State_Active else
                    p.Inactive)
            c = p.color(group, p.HighlightedText)
            c = 'rgb(%d, %d, %d)'%c.getRgb()[:3]
            doc.setDefaultStyleSheet(' * { color: %s }'%c)
        doc.setHtml(index.data() or '')
        return doc

    def sizeHint(self, option, index):
        doc = self.to_doc(index, option=option)
        ans = doc.size().toSize()
        if ans.width() > self.max_width - 10:
            ans.setWidth(self.max_width)
        ans.setHeight(ans.height()+10)
        return ans

    def paint(self, painter, option, index):
        QStyledItemDelegate.paint(self, painter, option, self.dummy_index)
        painter.save()
        painter.setClipRect(QRectF(option.rect))
        painter.translate(option.rect.topLeft())
        self.to_doc(index, option).drawContents(painter)
        painter.restore()

# 需要导入模块: from PyQt5.Qt import QStringListModel [as 别名]
# 或者: from PyQt5.Qt.QStringListModel import index [as 别名]
class Delegate(QStyledItemDelegate):

    def __init__(self, parent=None):
        QStyledItemDelegate.__init__(self, parent)
        self._m = QStringListModel(['sdfgkjsg sopgjs gsgs slgjslg sdklgsgl', ''])

    def sizeHint(self, option, index):
        ans = QStyledItemDelegate.sizeHint(self, option, self._m.index(0))
        index.data(Qt.UserRole).adjust_size_hint(option, ans)
        return ans

    def paint(self, painter, option, index):
        QStyledItemDelegate.paint(self, painter, option, self._m.index(1))
        painter.save()
        parent = self.parent() or QApplication.instance()
        style = parent.style()
        try:
            index.data(Qt.UserRole).draw_item(painter, style, option)
        finally:
            painter.restore()

# 需要导入模块: from PyQt5.Qt import QStringListModel [as 别名]
# 或者: from PyQt5.Qt.QStringListModel import index [as 别名]
class FontFamilyDialog(QDialog):

    def __init__(self, current_family, parent=None):
        QDialog.__init__(self, parent)
        self.setWindowTitle(_('Choose font family'))
        self.setWindowIcon(QIcon(I('font.png')))
        from calibre.utils.fonts.scanner import font_scanner
        self.font_scanner = font_scanner

        self.m = QStringListModel(self)
        self.build_font_list()
        self.l = l = QGridLayout()
        self.setLayout(l)
        self.view = FontsView(self)
        self.view.setModel(self.m)
        self.view.setCurrentIndex(self.m.index(0))
        if current_family:
            for i, val in enumerate(self.families):
                if icu_lower(val) == icu_lower(current_family):
                    self.view.setCurrentIndex(self.m.index(i))
                    break
        self.view.doubleClicked.connect(self.accept, type=Qt.QueuedConnection)
        self.view.changed.connect(self.current_changed,
                type=Qt.QueuedConnection)
        self.faces = Typefaces(self)
        self.bb = QDialogButtonBox(QDialogButtonBox.Ok|QDialogButtonBox.Cancel)
        self.bb.accepted.connect(self.accept)
        self.bb.rejected.connect(self.reject)
        self.add_fonts_button = afb = self.bb.addButton(_('Add &fonts'),
                self.bb.ActionRole)
        afb.setIcon(QIcon(I('plus.png')))
        afb.clicked.connect(self.add_fonts)
        self.ml = QLabel(_('Choose a font family from the list below:'))
        self.search = QLineEdit(self)
        self.search.setPlaceholderText(_('Search'))
        self.search.returnPressed.connect(self.find)
        self.nb = QToolButton(self)
        self.nb.setIcon(QIcon(I('arrow-down.png')))
        self.nb.setToolTip(_('Find next'))
        self.pb = QToolButton(self)
        self.pb.setIcon(QIcon(I('arrow-up.png')))
        self.pb.setToolTip(_('Find previous'))
        self.nb.clicked.connect(self.find_next)
        self.pb.clicked.connect(self.find_previous)

        l.addWidget(self.ml, 0, 0, 1, 4)
        l.addWidget(self.search, 1, 0, 1, 1)
        l.addWidget(self.nb, 1, 1, 1, 1)
        l.addWidget(self.pb, 1, 2, 1, 1)
        l.addWidget(self.view, 2, 0, 1, 3)
        l.addWidget(self.faces, 1, 3, 2, 1)
        l.addWidget(self.bb, 3, 0, 1, 4)
        l.setAlignment(self.faces, Qt.AlignTop)

        self.resize(800, 600)

    def set_current(self, i):
        self.view.setCurrentIndex(self.m.index(i))

    def keyPressEvent(self, e):
        if e.key() == Qt.Key_Return:
            return
        return QDialog.keyPressEvent(self, e)

    def find(self, backwards=False):
        i = self.view.currentIndex().row()
        if i < 0:
            i = 0
        q = icu_lower(unicode(self.search.text())).strip()
        if not q:
            return
        r = (xrange(i-1, -1, -1) if backwards else xrange(i+1,
            len(self.families)))
        for j in r:
            f = self.families[j]
            if q in icu_lower(f):
                self.set_current(j)
                return

    def find_next(self):
        self.find()

    def find_previous(self):
        self.find(backwards=True)

    def build_font_list(self):
        try:
            self.families = list(self.font_scanner.find_font_families())
        except:
            self.families = []
            print ('WARNING: Could not load fonts')
            import traceback
            traceback.print_exc()
        self.families.insert(0, _('None'))
        self.m.setStringList(self.families)

    def add_fonts(self):
        families = add_fonts(self)
        if not families:
            return
#.........这里部分代码省略.........