588 lines
18 KiB
Python
588 lines
18 KiB
Python
import re
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from typing import Any, Callable, Optional, Self, cast, overload
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from PyQt6.QtCore import QMargins, QPoint, QRect, QSize, Qt, QUrl, pyqtSignal
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from PyQt6.QtGui import (
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QBrush,
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QColor,
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QFont,
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QFontMetrics,
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QMouseEvent,
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QPainter,
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QPaintEvent,
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QResizeEvent,
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QTextOption,
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QTransform,
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)
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from PyQt6.QtWidgets import QWidget
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class Fragment:
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"""A fragment of text to be displayed"""
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_indentAmount = 35
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def __init__(
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self,
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which: str | Self,
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font: QFont | None = None,
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audio: str = "",
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color: Optional[QColor] = None,
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asis: bool = False,
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) -> None:
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if isinstance(which, Fragment):
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for k, v in which.__dict__.items():
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self.__dict__[k] = v
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return
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self._text: str = which
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if font is None:
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raise TypeError("Missing required parameter 'font'")
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self._font = font
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self._audio: QUrl = QUrl(audio)
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self._align = QTextOption(
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Qt.AlignmentFlag.AlignLeft | Qt.AlignmentFlag.AlignBaseline
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)
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self._padding = QMargins()
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self._border = QMargins()
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self._margin = QMargins()
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self._wref = ""
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self._position = QPoint()
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self._rect = QRect()
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self._borderRect = QRect()
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self._clickRect = QRect()
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if color:
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self._color = color
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else:
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self._color = QColor()
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self._background = QColor()
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self._asis = asis
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self._indent = 0
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self._target = "word"
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return
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def __str__(self) -> str:
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return self.__repr__()
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def size(self, width: int) -> QSize:
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return self.paintEvent(width)
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def height(self, width: int) -> int:
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return self.size(width).height()
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def width(self, width: int) -> int:
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return self.size(width).width()
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def __repr__(self) -> str:
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return f"({self._position.x()}, {self._position.y()}): {self._text}"
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@overload
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def paintEvent(self, widthSrc: int) -> QSize:
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...
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@overload
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def paintEvent(self, widthSrc: QPainter) -> int:
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...
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def paintEvent(self, widthSrc: QPainter | int) -> int | QSize:
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if isinstance(widthSrc, QPainter):
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viewportWidth = widthSrc.viewport().width()
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painter = widthSrc
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else:
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viewportWidth = widthSrc
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painter = None
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fm = QFontMetrics(self._font)
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top = self._position.y() + fm.descent() - fm.height()
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left = self._position.x()
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width = viewportWidth - left
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height = 2000
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rect = QRect(left, top, width, height)
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indent = self._indent * self._indentAmount
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flags = Qt.AlignmentFlag.AlignLeft | Qt.AlignmentFlag.AlignBaseline
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boundingNoWrap = fm.boundingRect(
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rect, flags | Qt.TextFlag.TextSingleLine, self._text
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)
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bounding = fm.boundingRect(
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rect, flags | Qt.TextFlag.TextWordWrap, self._text
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)
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text = self._text
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remainingText = ""
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if boundingNoWrap.height() < bounding.height():
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#
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# This is not optimal, but it is only a few iterations
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#
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lastSpace = 0
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char = 0
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pos = rect.x()
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while pos < rect.right():
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if text[char] == " ":
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lastSpace = char
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pos += fm.horizontalAdvance(text[char])
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char += 1
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if lastSpace > 0:
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remainingText = text[lastSpace + 1 :]
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text = text[:lastSpace]
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size = boundingNoWrap.size()
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boundingNoWrap = fm.boundingRect(
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rect, flags | Qt.TextFlag.TextSingleLine, text
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)
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rect.setSize(boundingNoWrap.size())
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if remainingText != "":
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top += size.height()
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remainingRect = QRect(indent, top, viewportWidth - indent, height)
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boundingRemaingRect = fm.boundingRect(
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remainingRect, flags | Qt.TextFlag.TextWordWrap, remainingText
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)
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size = size.grownBy(QMargins(0, 0, 0, boundingRemaingRect.height()))
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remainingRect.setSize(boundingRemaingRect.size())
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size = size.grownBy(self._margin)
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size = size.grownBy(self._border)
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size = size.grownBy(self._padding)
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if painter is None:
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return size
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painter.save()
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painter.setFont(self._font)
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painter.setPen(QColor("#f00"))
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if self._audio.isValid():
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radius = self._borderRect.height() / 2
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painter.drawRoundedRect(self._borderRect, radius, radius)
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if self._wref:
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start = bounding.bottomLeft()
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end = bounding.bottomRight()
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painter.drawLine(start, end)
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painter.setPen(self._color)
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if self._background.isValid():
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brush = painter.brush()
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brush.setColor(self._background)
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brush.setStyle(Qt.BrushStyle.SolidPattern)
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painter.setBrush(brush)
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painter.fillRect(rect, brush)
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painter.drawText(rect, flags, text)
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if remainingText:
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if self._background.isValid():
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painter.fillRect(remainingRect, brush)
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painter.drawText(
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remainingRect, flags | Qt.TextFlag.TextWordWrap, remainingText
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)
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painter.restore()
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return size.height()
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#
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# Setters
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#
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def setText(self, text: str) -> None:
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self._text = text
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return
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def setTarget(self, target: str) -> None:
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self._target = target
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return
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def setFont(self, font: QFont) -> None:
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self._font = font
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return
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def setAudio(self, audio: str | QUrl) -> None:
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if type(audio) is str:
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self._audio = QUrl(audio)
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else:
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self._audio = cast(QUrl, audio)
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return
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def setAlign(self, align: QTextOption) -> None:
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self._align = align
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return
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def setRect(self, rect: QRect) -> None:
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self._rect = rect
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return
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def setPadding(self, *args: int, **kwargs: int) -> None:
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top = kwargs.get("top", -1)
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right = kwargs.get("right", -1)
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bottom = kwargs.get("bottom", -1)
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left = kwargs.get("left", -1)
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if top > -1 or right > -1 or bottom > -1 or left > -1:
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if top >= 0:
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self._padding.setTop(top)
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if right >= 0:
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self._padding.setRight(right)
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if bottom >= 0:
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self._padding.setBottom(bottom)
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if left >= 0:
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self._padding.setLeft(left)
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return
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if len(args) == 4:
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(top, right, bottom, left) = [args[0], args[1], args[2], args[3]]
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elif len(args) == 3:
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(top, right, bottom, left) = [args[0], args[1], args[2], args[1]]
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elif len(args) == 2:
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(top, right, bottom, left) = [args[0], args[1], args[0], args[1]]
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elif len(args) == 1:
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(top, right, bottom, left) = [args[0], args[0], args[0], args[0]]
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else:
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raise Exception("argument error")
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self._padding = QMargins(left, top, right, bottom)
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return
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def setBorder(self, *args: int, **kwargs: int) -> None:
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top = kwargs.get("top", -1)
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right = kwargs.get("right", -1)
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bottom = kwargs.get("bottom", -1)
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left = kwargs.get("left", -1)
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if top > -1 or right > -1 or bottom > -1 or left > -1:
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if top >= 0:
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self._border.setTop(top)
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if right >= 0:
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self._border.setRight(right)
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if bottom >= 0:
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self._border.setBottom(bottom)
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if left >= 0:
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self._border.setLeft(left)
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return
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if len(args) == 4:
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(top, right, bottom, left) = [args[0], args[1], args[2], args[3]]
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elif len(args) == 3:
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(top, right, bottom, left) = [args[0], args[1], args[2], args[1]]
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elif len(args) == 2:
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(top, right, bottom, left) = [args[0], args[1], args[0], args[1]]
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elif len(args) == 1:
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(top, right, bottom, left) = [args[0], args[0], args[0], args[0]]
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else:
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raise Exception("argument error")
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self._border = QMargins(left, top, right, bottom)
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return
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def setMargin(self, *args: int, **kwargs: int) -> None:
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top = kwargs.get("top", -1)
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right = kwargs.get("right", -1)
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bottom = kwargs.get("bottom", -1)
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left = kwargs.get("left", -1)
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if top > -1 or right > -1 or bottom > -1 or left > -1:
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if top >= 0:
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self._margin.setTop(top)
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if right >= 0:
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self._margin.setRight(right)
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if bottom >= 0:
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self._margin.setBottom(bottom)
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if left >= 0:
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self._margin.setLeft(left)
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return
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if len(args) == 4:
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(top, right, bottom, left) = [args[0], args[1], args[2], args[3]]
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elif len(args) == 3:
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(top, right, bottom, left) = [args[0], args[1], args[2], args[1]]
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elif len(args) == 2:
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(top, right, bottom, left) = [args[0], args[1], args[0], args[1]]
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elif len(args) == 1:
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(top, right, bottom, left) = [args[0], args[0], args[0], args[0]]
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else:
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raise Exception("argument error")
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self._margin = QMargins(left, top, right, bottom)
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return
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def setWRef(self, ref: str) -> None:
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self._wref = ref
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return
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def setPosition(self, pnt: QPoint) -> None:
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self._position = pnt
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return
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def setBorderRect(self, rect: QRect) -> None:
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self._borderRect = rect
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return
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def setClickRect(self, rect: QRect) -> None:
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self._clickRect = rect
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return
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def setColor(self, color: QColor) -> None:
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self._color = color
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return
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def setBackground(self, color: QColor) -> None:
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self._background = color
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return
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def setIndent(self, indent: int) -> None:
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self._indent = indent
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return
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#
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# Getters
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#
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def wRef(self) -> str:
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return self._wref
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def text(self) -> str:
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return self._text
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def font(self) -> QFont:
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return self._font
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def audio(self) -> QUrl:
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return self._audio
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def align(self) -> QTextOption:
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return self._align
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def rect(self) -> QRect:
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return self._rect
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def padding(self) -> QMargins:
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return self._padding
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def border(self) -> QMargins:
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return self._border
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def margin(self) -> QMargins:
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return self._margin
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def position(self) -> QPoint:
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return self._position
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def borderRect(self) -> QRect:
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return self._borderRect
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def clickRect(self) -> QRect:
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return self._clickRect
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def color(self) -> QColor:
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return self._color
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def asis(self) -> bool:
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return self._asis
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def indent(self) -> int:
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return self._indent
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def pixelIndent(self) -> int:
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return self._indent * self._indentAmount
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class Line:
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parseText = None
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def __init__(self) -> None:
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self._maxHeight = -1
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self._baseLine = -1
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self._leading = -1
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self._fragments: list[Fragment] = []
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return
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def __repr__(self) -> str:
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return (
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"|".join([x.text() for x in self._fragments])
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+ f"|{self._maxHeight}"
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)
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@classmethod
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def setParseText(cls, call: Callable) -> None:
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cls.parseText = call
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return
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def paintEvent(self, painter: QPainter) -> int:
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#
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# we do not have an event field because we are not a true widget
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#
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lineSpacing = 0
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for frag in self._fragments:
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ls = frag.paintEvent(painter)
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if ls > lineSpacing:
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lineSpacing = ls
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return lineSpacing
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def addFragment(
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self,
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frags: Fragment | list[Fragment],
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) -> None:
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SPEAKER = "\U0001F508"
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if not isinstance(frags, list):
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frags = [
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frags,
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]
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for frag in frags:
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if frag.audio().isValid():
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frag.setText(frag.text() + " " + SPEAKER)
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text = frag.text()
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text = re.sub(r"\*", "\u2022", text)
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text = re.sub(r"\{ldquo\}", "\u201c", text)
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text = re.sub(r"\{rdquo\}", "\u201d", text)
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frag.setText(text)
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if frag.audio().isValid():
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frag.setPadding(3, 0, 0, 5)
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frag.setBorder(1)
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frag.setMargin(0, 0, 0, 0)
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if Line.parseText:
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items = Line.parseText(frag)
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self._fragments += items
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else:
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self._fragments.append(frag)
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return
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def finalizeLine(self, width: int, base: int) -> None:
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"""Create all of the positions for all the fragments."""
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#
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# Find the maximum hight and max baseline
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#
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maxHeight = -1
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baseLine = -1
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leading = -1
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for frag in self._fragments:
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fm = QFontMetrics(frag.font())
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height = frag.height(width)
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bl = fm.height() - fm.descent()
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if fm.leading() > leading:
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leading = fm.leading()
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if height > maxHeight:
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maxHeight = height
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if bl > baseLine:
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baseLine = bl
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self._baseLine = baseLine
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self._maxHeight = maxHeight
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self._leading = leading
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x = 0
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for frag in self._fragments:
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left = frag.pixelIndent()
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if x < left:
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x = left
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#
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# We need to calculate the location to draw the
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# text. We also need to calculate the bounding Rectangle
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# for this fragment
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#
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size = frag.size(width)
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fm = QFontMetrics(frag.font())
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offset = (
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frag.margin().left()
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+ frag.border().left()
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+ frag.padding().left()
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)
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frag.setPosition(QPoint(x + offset, self._baseLine))
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if not frag.border().isNull() or not frag.wRef():
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#
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# self._baseLine is where the text will be drawn
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# fm.descent is the distance from the baseline of the
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# text to the bottom of the rect
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# The top of the bounding rect is at self._baseLine
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# + fm.descent - rect.height
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# The border is drawn at top-padding-border-margin+marin
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#
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top = self._baseLine + fm.descent() - fm.height()
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y = top - frag.padding().top() - frag.border().top()
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pos = QPoint(x, y)
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rect = QRect(pos, size.shrunkBy(frag.margin()))
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frag.setBorderRect(rect)
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pos.setY(pos.y() + base)
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frag.setClickRect(QRect(pos, size.shrunkBy(frag.margin())))
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x += size.width()
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return
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def getLine(self) -> list[Fragment]:
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return self._fragments
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def getLineSpacing(self) -> int:
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return self._leading + self._maxHeight
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class Definition(QWidget):
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pronounce = pyqtSignal(str)
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def __init__(
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self, word: Optional[Any] = None, *args: Any, **kwargs: Any
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) -> None:
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super(Definition, self).__init__(*args, **kwargs)
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self._word = word
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if word is not None:
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self.setWord(word)
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return
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def setWord(self, word: Any) -> None:
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self._word = word
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lines: list[Line] = word.get_def()
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assert lines is not None
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self._lines = lines
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self._buttons: list[Fragment] = []
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base = 0
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for line in self._lines:
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line.finalizeLine(self.width(), base)
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for frag in line.getLine():
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if frag.audio().isValid():
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self._buttons.append(frag)
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if frag.wRef():
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print(f"Adding {frag} as an anchor")
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self._buttons.append(frag)
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base += line.getLineSpacing()
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self.setFixedHeight(base)
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return
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def resizeEvent(self, event: Optional[QResizeEvent] = None) -> None:
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base = 0
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for line in self._lines:
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line.finalizeLine(self.width(), base)
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base += line.getLineSpacing()
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self.setFixedHeight(base)
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super(Definition, self).resizeEvent(event)
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return
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_downFrag: Optional[Fragment | None] = None
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def mousePressEvent(self, event: Optional[QMouseEvent]) -> None:
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if not event:
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return super().mousePressEvent(event)
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print(f"mousePressEvent: {event.pos()}")
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for frag in self._buttons:
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rect = frag.clickRect()
|
|
if rect.contains(event.pos()):
|
|
self._downFrag = frag
|
|
return
|
|
return super().mousePressEvent(event)
|
|
|
|
def mouseReleaseEvent(self, event: Optional[QMouseEvent]) -> None:
|
|
if not event:
|
|
return super().mouseReleaseEvent(event)
|
|
if self._downFrag is not None and self._downFrag.clickRect().contains(
|
|
event.pos()
|
|
):
|
|
audio = self._downFrag.audio().url()
|
|
print(audio)
|
|
self.pronounce.emit(audio)
|
|
print("emit done")
|
|
self._downFrag = None
|
|
return
|
|
self._downFrag = None
|
|
return super().mouseReleaseEvent(event)
|
|
|
|
def paintEvent(self, _: Optional[QPaintEvent]) -> None: # noqa
|
|
painter = QPainter(self)
|
|
painter.save()
|
|
painter.setBrush(QBrush())
|
|
painter.setPen(QColor("white"))
|
|
|
|
#
|
|
# Each line needs a base calculated. To do that, we need to find the
|
|
# bounding rectangle of the text. Once we have the bounding rectangle,
|
|
# we can use the descendant to calculate the baseline within that
|
|
# bounding box.
|
|
#
|
|
# All text on this line needs to be on the same baseline
|
|
#
|
|
assert self._lines is not None
|
|
base = 0
|
|
for line in self._lines:
|
|
transform = QTransform()
|
|
transform.translate(0, base)
|
|
painter.setTransform(transform)
|
|
base += line.paintEvent(painter)
|
|
painter.restore()
|
|
return
|