Split CompletionDelegate into own file
This commit is contained in:
Florian Bruhin
parent
5f1cb2ede3
commit
c2af513ae2
@ -22,20 +22,16 @@ subclasses to provide completions.
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"""
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import logging
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import html
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from PyQt5.QtWidgets import (QStyle, QStyleOptionViewItem, QTreeView,
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QStyledItemDelegate, QSizePolicy)
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from PyQt5.QtCore import (pyqtSlot, pyqtSignal, Qt, QRectF, QSize,
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QItemSelectionModel)
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from PyQt5.QtGui import (QIcon, QPalette, QTextDocument, QTextOption,
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QTextCursor, QColor, QAbstractTextDocumentLayout)
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from PyQt5.QtWidgets import QStyle, QTreeView, QSizePolicy
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from PyQt5.QtCore import pyqtSlot, pyqtSignal, Qt, QItemSelectionModel
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import qutebrowser.config.config as config
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import qutebrowser.commands.utils as cmdutils
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import qutebrowser.config.configdata as configdata
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from qutebrowser.models.basecompletion import ROLE_MARKS, NoCompletionsError
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from qutebrowser.config.style import set_register_stylesheet, get_stylesheet
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from qutebrowser.widgets._completiondelegate import CompletionItemDelegate
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from qutebrowser.models.basecompletion import NoCompletionsError
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from qutebrowser.config.style import set_register_stylesheet
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from qutebrowser.commands.managers import split_cmdline
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from qutebrowser.models.completionfilter import CompletionFilterModel as CFM
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from qutebrowser.models.completion import (
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@ -119,7 +115,7 @@ class CompletionView(QTreeView):
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self._init_setting_completions()
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self._completing = False
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self._delegate = _CompletionItemDelegate(self)
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self._delegate = CompletionItemDelegate(self)
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self.setItemDelegate(self._delegate)
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set_register_stylesheet(self)
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self.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Minimum)
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@ -376,240 +372,3 @@ class CompletionView(QTreeView):
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"""Extend resizeEvent to adjust column size."""
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super().resizeEvent(e)
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self._resize_columns()
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class _CompletionItemDelegate(QStyledItemDelegate):
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"""Delegate used by CompletionView to draw individual items.
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Mainly a cleaned up port of Qt's way to draw a TreeView item, except it
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uses a QTextDocument to draw the text and add marking.
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Original implementation:
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qt/src/gui/styles/qcommonstyle.cpp:drawControl:2153
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Attributes:
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_opt: The QStyleOptionViewItem which is used.
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_style: The style to be used.
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_painter: The QPainter to be used.
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_doc: The QTextDocument to be used.
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"""
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# FIXME this is horribly slow when resizing.
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# We should probably cache something in _get_textdoc or so, but as soon as
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# we implement eliding that cache probably isn't worth much anymore...
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def __init__(self, parent=None):
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self._painter = None
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self._opt = None
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self._doc = None
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self._style = None
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super().__init__(parent)
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def _draw_background(self):
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"""Draw the background of an ItemViewItem."""
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self._style.drawPrimitive(self._style.PE_PanelItemViewItem, self._opt,
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self._painter, self._opt.widget)
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def _draw_icon(self):
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"""Draw the icon of an ItemViewItem."""
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icon_rect = self._style.subElementRect(
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self._style.SE_ItemViewItemDecoration, self._opt, self._opt.widget)
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mode = QIcon.Normal
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if not self._opt.state & QStyle.State_Enabled:
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mode = QIcon.Disabled
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elif self._opt.state & QStyle.State_Selected:
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mode = QIcon.Selected
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state = QIcon.On if self._opt.state & QStyle.State_Open else QIcon.Off
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self._opt.icon.paint(self._painter, icon_rect,
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self._opt.decorationAlignment, mode, state)
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def _draw_text(self, index):
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"""Draw the text of an ItemViewItem.
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This is the main part where we differ from the original implementation
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in Qt: We use a QTextDocument to draw text.
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Args:
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index: The QModelIndex of the item to draw.
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"""
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if not self._opt.text:
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return
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text_rect_ = self._style.subElementRect(
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self._style.SE_ItemViewItemText, self._opt, self._opt.widget)
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margin = self._style.pixelMetric(QStyle.PM_FocusFrameHMargin,
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self._opt, self._opt.widget) + 1
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# remove width padding
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text_rect = text_rect_.adjusted(margin, 0, -margin, 0)
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# move text upwards a bit
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if index.parent().isValid():
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text_rect.adjust(0, -1, 0, -1)
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else:
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text_rect.adjust(0, -2, 0, -2)
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self._painter.save()
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state = self._opt.state
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if state & QStyle.State_Enabled and state & QStyle.State_Active:
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cg = QPalette.Normal
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elif state & QStyle.State_Enabled:
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cg = QPalette.Inactive
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else:
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cg = QPalette.Disabled
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if state & QStyle.State_Selected:
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self._painter.setPen(self._opt.palette.color(
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cg, QPalette.HighlightedText))
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# This is a dirty fix for the text jumping by one pixel for
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# whatever reason.
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text_rect.adjust(0, -1, 0, 0)
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else:
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self._painter.setPen(self._opt.palette.color(cg, QPalette.Text))
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if state & QStyle.State_Editing:
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self._painter.setPen(self._opt.palette.color(cg, QPalette.Text))
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self._painter.drawRect(text_rect_.adjusted(0, 0, -1, -1))
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self._painter.translate(text_rect.left(), text_rect.top())
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self._get_textdoc(index)
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self._draw_textdoc(text_rect)
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self._painter.restore()
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def _draw_textdoc(self, rect):
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"""Draw the QTextDocument of an item.
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Args:
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rect: The QRect to clip the drawing to.
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"""
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# We can't use drawContents because then the color would be ignored.
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# See: https://qt-project.org/forums/viewthread/21492
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clip = QRectF(0, 0, rect.width(), rect.height())
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self._painter.save()
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if self._opt.state & QStyle.State_Selected:
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option = 'completion.item.selected.fg'
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elif not self._opt.state & QStyle.State_Enabled:
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option = 'completion.category.fg'
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else:
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option = 'completion.fg'
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try:
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self._painter.setPen(QColor(config.get('colors', option)))
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except config.NoOptionError:
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self._painter.setPen(QColor(config.get('colors', 'completion.fg')))
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ctx = QAbstractTextDocumentLayout.PaintContext()
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ctx.palette.setColor(QPalette.Text, self._painter.pen().color())
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if clip.isValid():
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self._painter.setClipRect(clip)
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ctx.clip = clip
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self._doc.documentLayout().draw(self._painter, ctx)
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self._painter.restore()
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def _get_textdoc(self, index):
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"""Create the QTextDocument of an item.
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Args:
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index: The QModelIndex of the item to draw.
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"""
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# FIXME we probably should do eliding here. See
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# qcommonstyle.cpp:viewItemDrawText
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text_option = QTextOption()
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if self._opt.features & QStyleOptionViewItem.WrapText:
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text_option.setWrapMode(QTextOption.WordWrap)
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else:
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text_option.setWrapMode(QTextOption.ManualWrap)
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text_option.setTextDirection(self._opt.direction)
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text_option.setAlignment(QStyle.visualAlignment(
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self._opt.direction, self._opt.displayAlignment))
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self._doc = QTextDocument(self)
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if index.parent().isValid():
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self._doc.setPlainText(self._opt.text)
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else:
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self._doc.setHtml('<b>{}</b>'.format(html.escape(self._opt.text)))
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self._doc.setDefaultFont(self._opt.font)
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self._doc.setDefaultTextOption(text_option)
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self._doc.setDefaultStyleSheet(get_stylesheet("""
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.highlight {{
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{color[completion.match.fg]}
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}}
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"""))
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self._doc.setDocumentMargin(2)
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if index.column() == 0:
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marks = index.data(ROLE_MARKS)
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if marks is None:
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return
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for mark in marks:
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cur = QTextCursor(self._doc)
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cur.setPosition(mark[0])
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cur.setPosition(mark[1], QTextCursor.KeepAnchor)
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txt = cur.selectedText()
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cur.removeSelectedText()
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cur.insertHtml('<span class="highlight">{}</span>'.format(
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html.escape(txt)))
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def _draw_focus_rect(self):
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"""Draw the focus rectangle of an ItemViewItem."""
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state = self._opt.state
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if not state & QStyle.State_HasFocus:
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return
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o = self._opt
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o.rect = self._style.subElementRect(
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self._style.SE_ItemViewItemFocusRect, self._opt, self._opt.widget)
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o.state |= QStyle.State_KeyboardFocusChange | QStyle.State_Item
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if state & QStyle.State_Enabled:
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cg = QPalette.Normal
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else:
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cg = QPalette.Disabled
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if state & QStyle.State_Selected:
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role = QPalette.Highlight
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else:
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role = QPalette.Window
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o.backgroundColor = self._opt.palette.color(cg, role)
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self._style.drawPrimitive(QStyle.PE_FrameFocusRect, o, self._painter,
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self._opt.widget)
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def sizeHint(self, option, index):
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"""Override sizeHint of QStyledItemDelegate.
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Return the cell size based on the QTextDocument size, but might not
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work correctly yet.
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Args:
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option: const QStyleOptionViewItem & option
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index: const QModelIndex & index
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Return:
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A QSize with the recommended size.
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"""
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value = index.data(Qt.SizeHintRole)
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if value is not None:
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return value
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self._opt = QStyleOptionViewItem(option)
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self.initStyleOption(self._opt, index)
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self._style = self._opt.widget.style()
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self._get_textdoc(index)
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docsize = self._doc.size().toSize()
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size = self._style.sizeFromContents(QStyle.CT_ItemViewItem, self._opt,
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docsize, self._opt.widget)
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return size + QSize(10, 3)
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def paint(self, painter, option, index):
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"""Override the QStyledItemDelegate paint function.
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Args:
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painter: QPainter * painter
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option: const QStyleOptionViewItem & option
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index: const QModelIndex & index
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"""
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self._painter = painter
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self._painter.save()
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self._opt = QStyleOptionViewItem(option)
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self.initStyleOption(self._opt, index)
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self._style = self._opt.widget.style()
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self._draw_background()
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self._draw_icon()
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self._draw_text(index)
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self._draw_focus_rect()
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self._painter.restore()
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268
qutebrowser/widgets/_completiondelegate.py
Normal file
268
qutebrowser/widgets/_completiondelegate.py
Normal file
@ -0,0 +1,268 @@
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# Copyright 2014 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
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#
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# This file is part of qutebrowser.
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#
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# qutebrowser is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# qutebrowser is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with qutebrowser. If not, see <http://www.gnu.org/licenses/>.
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"""Completion item delegate for CompletionView.
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We use this to be able to highlight parts of the text.
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"""
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import html
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from PyQt5.QtWidgets import QStyle, QStyleOptionViewItem, QStyledItemDelegate
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from PyQt5.QtCore import QRectF, QSize, Qt
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from PyQt5.QtGui import (QIcon, QPalette, QTextDocument, QTextOption,
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QTextCursor, QColor, QAbstractTextDocumentLayout)
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import qutebrowser.config.config as config
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from qutebrowser.models.basecompletion import ROLE_MARKS
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from qutebrowser.config.style import get_stylesheet
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class CompletionItemDelegate(QStyledItemDelegate):
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"""Delegate used by CompletionView to draw individual items.
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Mainly a cleaned up port of Qt's way to draw a TreeView item, except it
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uses a QTextDocument to draw the text and add marking.
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Original implementation:
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qt/src/gui/styles/qcommonstyle.cpp:drawControl:2153
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Attributes:
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_opt: The QStyleOptionViewItem which is used.
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_style: The style to be used.
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_painter: The QPainter to be used.
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_doc: The QTextDocument to be used.
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"""
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# FIXME this is horribly slow when resizing.
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# We should probably cache something in _get_textdoc or so, but as soon as
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# we implement eliding that cache probably isn't worth much anymore...
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def __init__(self, parent=None):
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self._painter = None
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self._opt = None
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self._doc = None
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self._style = None
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super().__init__(parent)
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def _draw_background(self):
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"""Draw the background of an ItemViewItem."""
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self._style.drawPrimitive(self._style.PE_PanelItemViewItem, self._opt,
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self._painter, self._opt.widget)
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def _draw_icon(self):
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"""Draw the icon of an ItemViewItem."""
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icon_rect = self._style.subElementRect(
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self._style.SE_ItemViewItemDecoration, self._opt, self._opt.widget)
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mode = QIcon.Normal
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if not self._opt.state & QStyle.State_Enabled:
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mode = QIcon.Disabled
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elif self._opt.state & QStyle.State_Selected:
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mode = QIcon.Selected
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state = QIcon.On if self._opt.state & QStyle.State_Open else QIcon.Off
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self._opt.icon.paint(self._painter, icon_rect,
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self._opt.decorationAlignment, mode, state)
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def _draw_text(self, index):
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"""Draw the text of an ItemViewItem.
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This is the main part where we differ from the original implementation
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in Qt: We use a QTextDocument to draw text.
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Args:
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index: The QModelIndex of the item to draw.
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"""
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if not self._opt.text:
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return
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text_rect_ = self._style.subElementRect(
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self._style.SE_ItemViewItemText, self._opt, self._opt.widget)
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margin = self._style.pixelMetric(QStyle.PM_FocusFrameHMargin,
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self._opt, self._opt.widget) + 1
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# remove width padding
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text_rect = text_rect_.adjusted(margin, 0, -margin, 0)
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# move text upwards a bit
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if index.parent().isValid():
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text_rect.adjust(0, -1, 0, -1)
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else:
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text_rect.adjust(0, -2, 0, -2)
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self._painter.save()
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state = self._opt.state
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if state & QStyle.State_Enabled and state & QStyle.State_Active:
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cg = QPalette.Normal
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elif state & QStyle.State_Enabled:
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cg = QPalette.Inactive
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else:
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cg = QPalette.Disabled
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if state & QStyle.State_Selected:
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self._painter.setPen(self._opt.palette.color(
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cg, QPalette.HighlightedText))
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# This is a dirty fix for the text jumping by one pixel for
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# whatever reason.
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text_rect.adjust(0, -1, 0, 0)
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else:
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self._painter.setPen(self._opt.palette.color(cg, QPalette.Text))
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if state & QStyle.State_Editing:
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self._painter.setPen(self._opt.palette.color(cg, QPalette.Text))
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self._painter.drawRect(text_rect_.adjusted(0, 0, -1, -1))
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self._painter.translate(text_rect.left(), text_rect.top())
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self._get_textdoc(index)
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self._draw_textdoc(text_rect)
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self._painter.restore()
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def _draw_textdoc(self, rect):
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"""Draw the QTextDocument of an item.
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Args:
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rect: The QRect to clip the drawing to.
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"""
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# We can't use drawContents because then the color would be ignored.
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# See: https://qt-project.org/forums/viewthread/21492
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clip = QRectF(0, 0, rect.width(), rect.height())
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self._painter.save()
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if self._opt.state & QStyle.State_Selected:
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option = 'completion.item.selected.fg'
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elif not self._opt.state & QStyle.State_Enabled:
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option = 'completion.category.fg'
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else:
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option = 'completion.fg'
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try:
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self._painter.setPen(QColor(config.get('colors', option)))
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except config.NoOptionError:
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self._painter.setPen(QColor(config.get('colors', 'completion.fg')))
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ctx = QAbstractTextDocumentLayout.PaintContext()
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ctx.palette.setColor(QPalette.Text, self._painter.pen().color())
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if clip.isValid():
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self._painter.setClipRect(clip)
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ctx.clip = clip
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self._doc.documentLayout().draw(self._painter, ctx)
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self._painter.restore()
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def _get_textdoc(self, index):
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"""Create the QTextDocument of an item.
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Args:
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index: The QModelIndex of the item to draw.
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"""
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# FIXME we probably should do eliding here. See
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# qcommonstyle.cpp:viewItemDrawText
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text_option = QTextOption()
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if self._opt.features & QStyleOptionViewItem.WrapText:
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text_option.setWrapMode(QTextOption.WordWrap)
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else:
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text_option.setWrapMode(QTextOption.ManualWrap)
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text_option.setTextDirection(self._opt.direction)
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text_option.setAlignment(QStyle.visualAlignment(
|
||||
self._opt.direction, self._opt.displayAlignment))
|
||||
|
||||
self._doc = QTextDocument(self)
|
||||
if index.parent().isValid():
|
||||
self._doc.setPlainText(self._opt.text)
|
||||
else:
|
||||
self._doc.setHtml('<b>{}</b>'.format(html.escape(self._opt.text)))
|
||||
self._doc.setDefaultFont(self._opt.font)
|
||||
self._doc.setDefaultTextOption(text_option)
|
||||
self._doc.setDefaultStyleSheet(get_stylesheet("""
|
||||
.highlight {{
|
||||
{color[completion.match.fg]}
|
||||
}}
|
||||
"""))
|
||||
self._doc.setDocumentMargin(2)
|
||||
|
||||
if index.column() == 0:
|
||||
marks = index.data(ROLE_MARKS)
|
||||
if marks is None:
|
||||
return
|
||||
for mark in marks:
|
||||
cur = QTextCursor(self._doc)
|
||||
cur.setPosition(mark[0])
|
||||
cur.setPosition(mark[1], QTextCursor.KeepAnchor)
|
||||
txt = cur.selectedText()
|
||||
cur.removeSelectedText()
|
||||
cur.insertHtml('<span class="highlight">{}</span>'.format(
|
||||
html.escape(txt)))
|
||||
|
||||
def _draw_focus_rect(self):
|
||||
"""Draw the focus rectangle of an ItemViewItem."""
|
||||
state = self._opt.state
|
||||
if not state & QStyle.State_HasFocus:
|
||||
return
|
||||
o = self._opt
|
||||
o.rect = self._style.subElementRect(
|
||||
self._style.SE_ItemViewItemFocusRect, self._opt, self._opt.widget)
|
||||
o.state |= QStyle.State_KeyboardFocusChange | QStyle.State_Item
|
||||
if state & QStyle.State_Enabled:
|
||||
cg = QPalette.Normal
|
||||
else:
|
||||
cg = QPalette.Disabled
|
||||
if state & QStyle.State_Selected:
|
||||
role = QPalette.Highlight
|
||||
else:
|
||||
role = QPalette.Window
|
||||
o.backgroundColor = self._opt.palette.color(cg, role)
|
||||
self._style.drawPrimitive(QStyle.PE_FrameFocusRect, o, self._painter,
|
||||
self._opt.widget)
|
||||
|
||||
def sizeHint(self, option, index):
|
||||
"""Override sizeHint of QStyledItemDelegate.
|
||||
|
||||
Return the cell size based on the QTextDocument size, but might not
|
||||
work correctly yet.
|
||||
|
||||
Args:
|
||||
option: const QStyleOptionViewItem & option
|
||||
index: const QModelIndex & index
|
||||
|
||||
Return:
|
||||
A QSize with the recommended size.
|
||||
"""
|
||||
value = index.data(Qt.SizeHintRole)
|
||||
if value is not None:
|
||||
return value
|
||||
self._opt = QStyleOptionViewItem(option)
|
||||
self.initStyleOption(self._opt, index)
|
||||
self._style = self._opt.widget.style()
|
||||
self._get_textdoc(index)
|
||||
docsize = self._doc.size().toSize()
|
||||
size = self._style.sizeFromContents(QStyle.CT_ItemViewItem, self._opt,
|
||||
docsize, self._opt.widget)
|
||||
return size + QSize(10, 3)
|
||||
|
||||
def paint(self, painter, option, index):
|
||||
"""Override the QStyledItemDelegate paint function.
|
||||
|
||||
Args:
|
||||
painter: QPainter * painter
|
||||
option: const QStyleOptionViewItem & option
|
||||
index: const QModelIndex & index
|
||||
"""
|
||||
self._painter = painter
|
||||
self._painter.save()
|
||||
self._opt = QStyleOptionViewItem(option)
|
||||
self.initStyleOption(self._opt, index)
|
||||
self._style = self._opt.widget.style()
|
||||
|
||||
self._draw_background()
|
||||
self._draw_icon()
|
||||
self._draw_text(index)
|
||||
self._draw_focus_rect()
|
||||
|
||||
self._painter.restore()
|
||||
Loading…
Reference in New Issue
Block a user