f641357073
Selectionner copie aussitot au relachement du bouton, et le clic droit colle directement. Plus de menu contextuel ni de raccourci a connaitre : c'est le comportement des terminaux Unix et de PuTTY. - selection relachee, et double-clic sur un mot, copient dans la foulee - clic droit et clic molette collent immediatement - un simple clic sans deplacement se contente d'annuler la selection, sans toucher au presse-papiers : sinon il ecraserait ce qu'on s'apprete a coller - le menu contextuel est supprime, le clic droit etant desormais un collage - "Tout selectionner" passe sur Ctrl+Maj+A, Ctrl+A restant "debut de ligne" pour le shell Les raccourcis clavier restent disponibles pour qui les prefere. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
604 lines
24 KiB
Python
604 lines
24 KiB
Python
"""Widget terminal : emulation ANSI/VT100 (pyte) rendue avec QPainter.
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Optimisation cle : on ne redessine que les lignes reellement modifiees depuis le
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dernier rendu (via `screen.dirty`, fourni par pyte), au lieu de repeindre tout
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l'ecran a chaque octet recu. Sans ca, chaque frappe clavier (et son echo distant)
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declenche un repaint de la totalite de la grille, ce qui devient tres sensible
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des que le terminal contient beaucoup de lignes ou que la fenetre est grande.
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"""
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from __future__ import annotations
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import pyte
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from PySide6.QtCore import QRect, Qt, Signal
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from PySide6.QtGui import (
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QColor, QFont, QFontMetrics, QPainter, QKeyEvent, QWheelEvent,
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)
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from PySide6.QtWidgets import QWidget, QApplication, QScrollBar
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from app import theme as app_theme
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# Sequences envoyees pour les touches speciales
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KEY_SEQUENCES = {
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Qt.Key_Up: b"\x1b[A", Qt.Key_Down: b"\x1b[B", Qt.Key_Right: b"\x1b[C", Qt.Key_Left: b"\x1b[D",
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Qt.Key_Home: b"\x1b[H", Qt.Key_End: b"\x1b[F", Qt.Key_Insert: b"\x1b[2~", Qt.Key_Delete: b"\x1b[3~",
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Qt.Key_PageUp: b"\x1b[5~", Qt.Key_PageDown: b"\x1b[6~",
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Qt.Key_F1: b"\x1bOP", Qt.Key_F2: b"\x1bOQ", Qt.Key_F3: b"\x1bOR", Qt.Key_F4: b"\x1bOS",
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Qt.Key_F5: b"\x1b[15~", Qt.Key_F6: b"\x1b[17~", Qt.Key_F7: b"\x1b[18~", Qt.Key_F8: b"\x1b[19~",
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Qt.Key_F9: b"\x1b[20~", Qt.Key_F10: b"\x1b[21~", Qt.Key_F11: b"\x1b[23~", Qt.Key_F12: b"\x1b[24~",
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Qt.Key_Backspace: b"\x7f", Qt.Key_Tab: b"\t", Qt.Key_Return: b"\r", Qt.Key_Enter: b"\r",
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Qt.Key_Escape: b"\x1b",
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}
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class ReplyingScreen(pyte.HistoryScreen):
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"""Ecran pyte capable de repondre aux requetes du terminal.
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Certaines pseudo-consoles (ConPTY notamment) interrogent le terminal au demarrage
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("Device Attributes" \x1b[c, "Cursor Position Report" \x1b[6n) et **attendent la
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reponse** avant de poursuivre. pyte sait construire ces reponses, mais les envoie
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via write_process_input(), qui ne fait rien par defaut : sans ce branchement, la
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console reste bloquee en attente.
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"""
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.reply_callback = None
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def write_process_input(self, data: str) -> None:
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if self.reply_callback:
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self.reply_callback(data.encode("utf-8", errors="ignore"))
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class TerminalWidget(QWidget):
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data_to_send = Signal(bytes)
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resized = Signal(int, int) # cols, rows
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search_requested = Signal() # Ctrl+F : l'onglet ouvre sa barre de recherche
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def __init__(self, parent=None):
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super().__init__(parent)
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self.setFocusPolicy(Qt.StrongFocus)
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self.setAttribute(Qt.WA_OpaquePaintEvent, True)
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self.font_size = app_theme.load_font_size()
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self._apply_font(self.font_size)
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# barre de defilement de l'historique, placee a la main (le widget peint
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# directement sa grille, il n'utilise pas de zone de defilement Qt)
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self.scrollbar = QScrollBar(Qt.Vertical, self)
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self.scrollbar.setCursor(Qt.ArrowCursor)
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self.scrollbar.valueChanged.connect(self._on_scrollbar_moved)
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self._syncing_scrollbar = False
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self.cols = 80
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self.rows = 24
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self.screen = ReplyingScreen(self.cols, self.rows, history=5000)
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# les reponses aux requetes du terminal repartent par le meme canal que le clavier
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self.screen.reply_callback = self.data_to_send.emit
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self.stream = pyte.ByteStream(self.screen)
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self.scroll_offset = 0
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self._prev_cursor_y = 0
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# selection a la souris : coordonnees (colonne, ligne) dans la grille
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self._sel_anchor: tuple[int, int] | None = None
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self._sel_focus: tuple[int, int] | None = None
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self._selecting = False
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self._load_palette()
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self.setMinimumSize(200, 100)
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# ---------- police ----------
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def _apply_font(self, size: int) -> None:
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self.font_ = QFont("Cascadia Mono", size)
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if not self.font_.exactMatch():
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self.font_ = QFont("Consolas", size)
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self.font_.setStyleHint(QFont.Monospace)
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self.setFont(self.font_)
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metrics = QFontMetrics(self.font_)
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self.char_w = max(1, metrics.horizontalAdvance("M"))
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self.char_h = max(1, metrics.height())
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def set_font_size(self, size: int) -> None:
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"""Change la taille de police et reajuste la grille en consequence."""
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size = max(6, min(32, size))
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if size == self.font_size:
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return
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self.font_size = size
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self._apply_font(size)
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app_theme.save_font_size(size)
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self._recompute_grid()
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self.update()
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def zoom(self, delta: int) -> None:
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self.set_font_size(self.font_size + delta)
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def reset_zoom(self) -> None:
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self.set_font_size(10)
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def _recompute_grid(self) -> None:
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"""Recalcule le nombre de colonnes/lignes disponibles et previent la session."""
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width = max(0, self.width() - self.scrollbar.sizeHint().width())
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new_cols = max(10, width // self.char_w)
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new_rows = max(3, self.height() // self.char_h)
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if new_cols != self.cols or new_rows != self.rows:
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self.cols, self.rows = new_cols, new_rows
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self.screen.resize(self.rows, self.cols)
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self.resized.emit(self.cols, self.rows)
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def _load_palette(self) -> None:
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"""Construit les couleurs du terminal a partir du theme courant.
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Le cache evite de re-parser les memes couleurs hexa a chaque caractere
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redessine (c'etait un point chaud du rendu)."""
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palette = app_theme.terminal_palette()
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self.default_fg = QColor(palette["fg"])
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self.default_bg = QColor(palette["bg"])
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self.cursor_color = QColor(*palette["cursor"])
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self._color_cache: dict[str, QColor] = {
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name: QColor(value) for name, value in palette["ansi"].items()
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}
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self._bold_fg = QColor(palette["ansi"]["brightwhite"])
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self.selection_color = QColor(*palette.get("selection", (79, 140, 255, 90)))
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def reset_screen(self) -> None:
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"""Vide l'ecran et l'historique (utilise lors d'une reconnexion)."""
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self.screen.reset()
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self.screen.resize(self.rows, self.cols)
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try:
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self.screen.history.top.clear()
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self.screen.history.bottom.clear()
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except Exception:
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pass
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self.clear_selection()
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self.scroll_offset = 0
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self._prev_cursor_y = 0
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self._sync_scrollbar()
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self.update()
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def refresh_theme(self) -> None:
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"""Recharge les couleurs apres un changement de theme, et redessine."""
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self._load_palette()
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self.update()
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# ---------- selection a la souris ----------
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def _cell_at(self, pos) -> tuple[int, int]:
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col = max(0, min(self.cols - 1, pos.x() // self.char_w))
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row = max(0, min(self.rows - 1, pos.y() // self.char_h))
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return col, row
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def _ordered_selection(self) -> tuple[tuple[int, int], tuple[int, int]] | None:
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"""Renvoie (debut, fin) remis dans l'ordre de lecture."""
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if self._sel_anchor is None or self._sel_focus is None:
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return None
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a, b = self._sel_anchor, self._sel_focus
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if (a[1], a[0]) <= (b[1], b[0]):
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return a, b
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return b, a
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def _selected_columns(self, row: int) -> tuple[int, int] | None:
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"""Plage [debut, fin[ de colonnes selectionnees sur cette ligne."""
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ordered = self._ordered_selection()
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if not ordered:
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return None
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(sx, sy), (ex, ey) = ordered
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if row < sy or row > ey:
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return None
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start = sx if row == sy else 0
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end = (ex + 1) if row == ey else self.cols
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return (start, end) if end > start else None
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def has_selection(self) -> bool:
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return self._ordered_selection() is not None
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def selected_text(self) -> str:
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ordered = self._ordered_selection()
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if not ordered:
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return ""
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lines = []
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for row in range(ordered[0][1], ordered[1][1] + 1):
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span = self._selected_columns(row)
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if not span:
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continue
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line = self.screen.buffer[row]
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# rstrip : le tampon est complete par des espaces jusqu'au bord de l'ecran
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lines.append("".join(line[col].data for col in range(*span)).rstrip())
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return "\n".join(lines)
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def clear_selection(self) -> None:
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if self._sel_anchor is not None:
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self._sel_anchor = self._sel_focus = None
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self.update()
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def select_all(self) -> None:
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self._sel_anchor = (0, 0)
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self._sel_focus = (self.cols - 1, self.rows - 1)
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self.update()
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# ---------- recherche dans l'historique ----------
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def find_text(self, needle: str, backwards: bool = True) -> bool:
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"""Cherche `needle` a l'ecran, puis en remontant l'historique page par page.
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pyte ne sait defiler que par demi-pages : on avance donc de page en page et on
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inspecte l'ecran a chaque etape. La ligne trouvee est selectionnee, ce qui la
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rend visible et immediatement copiable.
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"""
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if not needle:
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return False
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needle_low = needle.lower()
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def match_on_screen() -> bool:
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for row, line in enumerate(self.screen.display):
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col = line.lower().find(needle_low)
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if col >= 0:
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self._sel_anchor = (col, row)
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self._sel_focus = (col + len(needle) - 1, row)
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self.update()
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return True
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return False
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if match_on_screen():
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return True
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above, below = self._history_lengths()
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steps = 0
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max_steps = max(1, (above if backwards else below) // max(1, self.rows // 2)) + 1
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while steps < max_steps:
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if backwards:
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self.screen.prev_page()
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self.scroll_offset += 1
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else:
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self.screen.next_page()
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self.scroll_offset = max(0, self.scroll_offset - 1)
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steps += 1
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if match_on_screen():
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self._sync_scrollbar()
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return True
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self._sync_scrollbar()
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self.update()
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return False
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def scroll_to_bottom(self) -> None:
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"""Revient a la vue en direct."""
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_, below = self._history_lengths()
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page = max(1, self.rows // 2)
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for _ in range((below + page - 1) // page):
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self.screen.next_page()
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self.scroll_offset = 0
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self._sync_scrollbar()
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self.update()
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# ---------- presse-papiers ----------
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def copy_selection(self) -> None:
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text = self.selected_text()
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if text:
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QApplication.clipboard().setText(text)
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def paste_clipboard(self) -> None:
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text = QApplication.clipboard().text()
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if not text:
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return
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# un terminal attend un retour chariot ; \r\n enverrait une ligne vide de plus
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payload = text.replace("\r\n", "\r").replace("\n", "\r")
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self.data_to_send.emit(payload.encode("utf-8", errors="ignore"))
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def buffer_text(self) -> str:
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"""Texte visible + historique proche, pour retrouver ce qui a ete tape
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(utilise pour deduire l'hote d'une commande ssh saisie a la main).
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Les lignes remplies jusqu'a la derniere colonne sont recollees avec la
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suivante : une commande longue (prompt Windows + ssh user@ip) deborde sur
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deux lignes, et la couper en plein milieu casserait la detection.
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"""
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lines = list(self.screen.display)
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try:
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for entry in self.screen.history.top:
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lines.insert(0, "".join(char.data for char in entry.values()))
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except Exception:
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pass
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joined: list[str] = []
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current = ""
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for line in lines:
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stripped = line.rstrip()
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current += stripped
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if len(stripped) >= self.cols: # ligne pleine : la suite continue en dessous
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continue
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joined.append(current)
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current = ""
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if current:
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joined.append(current)
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return "\n".join(joined)
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# ---------- alimentation depuis la connexion SSH ----------
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def feed(self, data: bytes) -> None:
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was_scrolled = self.scroll_offset != 0
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self.stream.feed(data)
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self.scroll_offset = 0
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if was_scrolled:
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# on revient du scrollback a la vue live : tout le contenu affiche change,
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# un repaint partiel base sur les seules lignes "dirty" serait incomplet
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self.screen.dirty.clear()
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self._sync_scrollbar()
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self.update()
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return
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self._sync_scrollbar()
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dirty_rows = self.screen.dirty
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cursor_y = self.screen.cursor.y
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if cursor_y != self._prev_cursor_y:
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dirty_rows = dirty_rows | {self._prev_cursor_y, cursor_y}
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else:
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dirty_rows = dirty_rows | {cursor_y}
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self._prev_cursor_y = cursor_y
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if dirty_rows:
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min_y = max(0, min(dirty_rows))
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max_y = min(self.rows - 1, max(dirty_rows))
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self.update(QRect(0, min_y * self.char_h, self.cols * self.char_w, (max_y - min_y + 1) * self.char_h))
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self.screen.dirty.clear()
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# ---------- rendu ----------
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def paintEvent(self, event) -> None:
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painter = QPainter(self)
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rect = event.rect()
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painter.fillRect(rect, self.default_bg)
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painter.setFont(self.font_)
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y0 = max(0, rect.top() // self.char_h)
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y1 = min(self.rows - 1, rect.bottom() // self.char_h)
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cursor = self.screen.cursor
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for y in range(y0, y1 + 1):
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line = self.screen.buffer[y]
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x = 0
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while x < self.cols:
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char = line[x]
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run_text = char.data
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start_x = x
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fg, bg = self._resolve_colors(char)
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# regrouper les caracteres consecutifs de meme style pour limiter les appels de dessin
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x += 1
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while x < self.cols:
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nxt = line[x]
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nfg, nbg = self._resolve_colors(nxt)
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if nfg == fg and nbg == bg:
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run_text += nxt.data
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x += 1
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else:
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break
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px = start_x * self.char_w
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py = y * self.char_h
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run_w = (x - start_x) * self.char_w
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if bg != self.default_bg:
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painter.fillRect(px, py, run_w, self.char_h, bg)
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painter.setPen(fg)
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painter.drawText(px, py + self.char_h - 4, run_text)
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# surlignage de la selection, par-dessus le texte
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for y in range(y0, y1 + 1):
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span = self._selected_columns(y)
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if span:
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start, end = span
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painter.fillRect(
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start * self.char_w, y * self.char_h,
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(end - start) * self.char_w, self.char_h,
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self.selection_color,
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)
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# curseur (bloc plein), non affiche pendant un scroll dans l'historique
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if self.scroll_offset == 0 and not self.screen.cursor.hidden and y0 <= cursor.y <= y1:
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cx, cy = cursor.x, cursor.y
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painter.fillRect(cx * self.char_w, cy * self.char_h, self.char_w, self.char_h, self.cursor_color)
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painter.end()
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def _resolve_colors(self, char) -> tuple[QColor, QColor]:
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fg_color = self._color_for(char.fg, self.default_fg)
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bg_color = self._color_for(char.bg, self.default_bg)
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if char.reverse:
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fg_color, bg_color = bg_color, fg_color
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if char.bold and fg_color is self.default_fg:
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fg_color = self._bold_fg
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return fg_color, bg_color
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def _color_for(self, value: str, default: QColor) -> QColor:
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cached = self._color_cache.get(value)
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if cached is not None:
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return cached
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if isinstance(value, str) and len(value) == 6:
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candidate = QColor(f"#{value}")
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if candidate.isValid():
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self._color_cache[value] = candidate
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return candidate
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return default
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# ---------- barre de defilement ----------
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def _history_lengths(self) -> tuple[int, int]:
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"""(lignes au-dessus, lignes en dessous) dans l'historique pyte."""
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try:
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return len(self.screen.history.top), len(self.screen.history.bottom)
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except Exception:
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return 0, 0
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def _sync_scrollbar(self) -> None:
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"""Reflete la position dans l'historique. pyte ne defile que par demi-pages :
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la barre est donc graduee en pages, pas en lignes."""
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above, below = self._history_lengths()
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page = max(1, self.rows // 2)
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pages_above = (above + page - 1) // page
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pages_below = (below + page - 1) // page
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total = pages_above + pages_below
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|
|
self._syncing_scrollbar = True
|
|
self.scrollbar.setRange(0, total)
|
|
self.scrollbar.setPageStep(1)
|
|
self.scrollbar.setValue(pages_above) # au maximum = vue en direct
|
|
self.scrollbar.setVisible(total > 0)
|
|
self._syncing_scrollbar = False
|
|
|
|
def _on_scrollbar_moved(self, value: int) -> None:
|
|
if self._syncing_scrollbar:
|
|
return
|
|
above, _ = self._history_lengths()
|
|
page = max(1, self.rows // 2)
|
|
current = (above + page - 1) // page
|
|
steps = value - current
|
|
for _ in range(abs(steps)):
|
|
if steps > 0:
|
|
self.screen.next_page()
|
|
self.scroll_offset = max(0, self.scroll_offset - 1)
|
|
else:
|
|
self.screen.prev_page()
|
|
self.scroll_offset += 1
|
|
self.update()
|
|
|
|
# ---------- redimensionnement ----------
|
|
def resizeEvent(self, event) -> None:
|
|
sb_width = self.scrollbar.sizeHint().width()
|
|
self.scrollbar.setGeometry(self.width() - sb_width, 0, sb_width, self.height())
|
|
self._recompute_grid()
|
|
self._sync_scrollbar()
|
|
super().resizeEvent(event)
|
|
|
|
# ---------- entree clavier ----------
|
|
def keyPressEvent(self, event: QKeyEvent) -> None:
|
|
key = event.key()
|
|
modifiers = event.modifiers()
|
|
|
|
# Copier/coller AVANT la gestion de Ctrl+lettre : sinon Ctrl+Shift+C partirait
|
|
# comme un Ctrl+C (interruption) au lieu de copier. Ctrl+C seul reste l'interruption,
|
|
# comme dans tous les terminaux.
|
|
if (modifiers & Qt.ControlModifier) and (modifiers & Qt.ShiftModifier):
|
|
if key == Qt.Key_C:
|
|
self.copy_selection()
|
|
return
|
|
if key == Qt.Key_V:
|
|
self.paste_clipboard()
|
|
return
|
|
if key == Qt.Key_A:
|
|
# Ctrl+A seul reste "debut de ligne" pour le shell
|
|
self.select_all()
|
|
return
|
|
if key == Qt.Key_Insert and (modifiers & Qt.ShiftModifier):
|
|
self.paste_clipboard()
|
|
return
|
|
|
|
if modifiers & Qt.ControlModifier:
|
|
if key in (Qt.Key_Plus, Qt.Key_Equal):
|
|
self.zoom(1)
|
|
return
|
|
if key == Qt.Key_Minus:
|
|
self.zoom(-1)
|
|
return
|
|
if key == Qt.Key_0:
|
|
self.reset_zoom()
|
|
return
|
|
if key == Qt.Key_F:
|
|
self.search_requested.emit()
|
|
return
|
|
|
|
# defilement de l'historique au clavier
|
|
if modifiers & Qt.ShiftModifier and key in (Qt.Key_PageUp, Qt.Key_PageDown):
|
|
if key == Qt.Key_PageUp:
|
|
self.screen.prev_page()
|
|
self.scroll_offset += 1
|
|
else:
|
|
self.screen.next_page()
|
|
self.scroll_offset = max(0, self.scroll_offset - 1)
|
|
self._sync_scrollbar()
|
|
self.update()
|
|
return
|
|
if modifiers & Qt.ControlModifier and key == Qt.Key_End:
|
|
self.scroll_to_bottom()
|
|
return
|
|
|
|
# Ctrl+lettre = raccourci (Ctrl+C, Ctrl+D...), mais PAS quand Alt est aussi enfonce :
|
|
# sur les claviers europeens (AZERTY compris), AltGr - indispensable pour taper
|
|
# @ # { } | ~ ... - est rapporte par Windows comme Ctrl+Alt enfonces ensemble.
|
|
# Sans cette exclusion, taper "@" (et les lettres voisines pendant le chevauchement
|
|
# naturel de la frappe) etait intercepte comme un raccourci Ctrl+lettre parasite,
|
|
# envoyant un octet de controle au lieu du vrai caractere.
|
|
if (modifiers & Qt.ControlModifier) and not (modifiers & Qt.AltModifier) and Qt.Key_A <= key <= Qt.Key_Z:
|
|
self.data_to_send.emit(bytes([key - Qt.Key_A + 1]))
|
|
return
|
|
|
|
if key in KEY_SEQUENCES:
|
|
self.data_to_send.emit(KEY_SEQUENCES[key])
|
|
return
|
|
|
|
text = event.text()
|
|
if text:
|
|
self.data_to_send.emit(text.encode("utf-8", errors="ignore"))
|
|
return
|
|
super().keyPressEvent(event)
|
|
|
|
def wheelEvent(self, event: QWheelEvent) -> None:
|
|
steps = event.angleDelta().y() // 120
|
|
if event.modifiers() & Qt.ControlModifier:
|
|
self.zoom(1 if steps > 0 else -1) # Ctrl+molette = zoom, comme partout
|
|
return
|
|
if steps > 0:
|
|
self.screen.prev_page()
|
|
self.scroll_offset += steps
|
|
elif steps < 0:
|
|
self.screen.next_page()
|
|
self.scroll_offset = max(0, self.scroll_offset + steps)
|
|
self._sync_scrollbar()
|
|
self.update()
|
|
|
|
def mousePressEvent(self, event) -> None:
|
|
self.setFocus()
|
|
if event.button() == Qt.LeftButton:
|
|
self._sel_anchor = self._sel_focus = self._cell_at(event.position().toPoint())
|
|
self._selecting = True
|
|
self.update()
|
|
elif event.button() in (Qt.RightButton, Qt.MiddleButton):
|
|
# Comportement des terminaux Unix (et de PuTTY) : le clic droit colle
|
|
# directement, sans passer par un menu.
|
|
self.paste_clipboard()
|
|
super().mousePressEvent(event)
|
|
|
|
def mouseMoveEvent(self, event) -> None:
|
|
if self._selecting:
|
|
self._sel_focus = self._cell_at(event.position().toPoint())
|
|
self.update()
|
|
super().mouseMoveEvent(event)
|
|
|
|
def mouseReleaseEvent(self, event) -> None:
|
|
if event.button() == Qt.LeftButton:
|
|
self._selecting = False
|
|
if self._sel_anchor == self._sel_focus:
|
|
# simple clic sans deplacement : on annule la selection sans toucher
|
|
# au presse-papiers, qui contient peut-etre ce qu'on s'apprete a coller
|
|
self.clear_selection()
|
|
else:
|
|
# Comportement des terminaux Unix : relacher la souris apres une
|
|
# selection copie immediatement, sans raccourci ni menu.
|
|
self.copy_selection()
|
|
super().mouseReleaseEvent(event)
|
|
|
|
def mouseDoubleClickEvent(self, event) -> None:
|
|
"""Double-clic : selectionne le mot sous le curseur."""
|
|
col, row = self._cell_at(event.position().toPoint())
|
|
line = self.screen.buffer[row]
|
|
separators = " \t\"'`()[]{}<>|;:,"
|
|
if line[col].data in separators:
|
|
return
|
|
start = col
|
|
while start > 0 and line[start - 1].data not in separators:
|
|
start -= 1
|
|
end = col
|
|
while end < self.cols - 1 and line[end + 1].data not in separators:
|
|
end += 1
|
|
self._sel_anchor, self._sel_focus = (start, row), (end, row)
|
|
self.update()
|
|
self.copy_selection() # comme la selection a la souris : copie immediate
|
|
|
|
def contextMenuEvent(self, event) -> None:
|
|
# Pas de menu contextuel : dans un terminal Unix le clic droit colle,
|
|
# et il est traite dans mousePressEvent.
|
|
event.ignore()
|