Mercurial > octave-dspies
view libgui/src/m-editor/octave-qscintilla.cc @ 18689:fac35875f6eb gui-release
update enabled status of undo/redo actions in the editor
* file-editor-tab.h: new inline function returning the qscintilla edit area
* octave-qscintilla.cc (constructor): connect textChanged signal to new private
slot text_changed;
(text_changed): new slot emitting a signal on undo/redo availability
* octave-qscintilla.h: new slot and new signal
* file-editor.cc (edit_status_update): new slot for updating undo/redo actions;
(construct): undo/redo actions disabled at the beginning;
(add_new_edit_tab): connect new slot to the signal from the qscintilla edit
area indicating undo/redo availability
* file-editor.h: new slot
author | Torsten <ttl@justmail.de> |
---|---|
date | Sun, 27 Apr 2014 19:36:54 +0200 |
parents | 99e26cb0f87f |
children | 7c78430535db 095fdef3d67c |
line wrap: on
line source
/* Copyright (C) 2013 Torsten This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ // Author: Torsten <ttl@justmail.de> #ifdef HAVE_CONFIG_H #include <config.h> #endif #ifdef HAVE_QSCINTILLA #include <Qsci/qscilexer.h> #include <Qsci/qscicommandset.h> #include <QShortcut> #include "octave-qscintilla.h" #include "file-editor-tab.h" #include "shortcut-manager.h" octave_qscintilla::octave_qscintilla (QWidget *p) : QsciScintilla (p) { connect (this, SIGNAL (textChanged ()), this, SLOT (text_changed ())); // clear scintilla edit shortcuts that are handled by the editor QsciCommandSet *cmd_set = standardCommands (); #ifdef HAVE_QSCI_VERSION_2_6_0 // find () was added in QScintilla 2.6 cmd_set->find (QsciCommand::SelectionCopy)->setKey (0); cmd_set->find (QsciCommand::SelectionCut)->setKey (0); cmd_set->find (QsciCommand::Paste)->setKey (0); cmd_set->find (QsciCommand::SelectAll)->setKey (0); cmd_set->find (QsciCommand::SelectionDuplicate)->setKey (0); cmd_set->find (QsciCommand::LineTranspose)->setKey (0); cmd_set->find (QsciCommand::Undo)->setKey (0); cmd_set->find (QsciCommand::Redo)->setKey (0); cmd_set->find (QsciCommand::SelectionUpperCase)->setKey (0); cmd_set->find (QsciCommand::SelectionLowerCase)->setKey (0); cmd_set->find (QsciCommand::ZoomIn)->setKey (0); cmd_set->find (QsciCommand::ZoomOut)->setKey (0); cmd_set->find (QsciCommand::DeleteWordLeft)->setKey (0); cmd_set->find (QsciCommand::DeleteWordRight)->setKey (0); cmd_set->find (QsciCommand::DeleteLineLeft)->setKey (0); cmd_set->find (QsciCommand::DeleteLineRight)->setKey (0); cmd_set->find (QsciCommand::LineDelete)->setKey (0); cmd_set->find (QsciCommand::LineCut)->setKey (0); cmd_set->find (QsciCommand::LineCopy)->setKey (0); #else // find commands via its default key (tricky way without find ()) QList< QsciCommand * > cmd_list = cmd_set->commands (); for (int i = 0; i < cmd_list.length (); i++) { int cmd_key = cmd_list.at (i)->key (); switch (cmd_key) { case Qt::Key_C | Qt::CTRL : // SelectionCopy case Qt::Key_X | Qt::CTRL : // SelectionCut case Qt::Key_V | Qt::CTRL : // Paste case Qt::Key_A | Qt::CTRL : // SelectAll case Qt::Key_D | Qt::CTRL : // SelectionDuplicate case Qt::Key_T | Qt::CTRL : // LineTranspose case Qt::Key_Z | Qt::CTRL : // Undo case Qt::Key_Y | Qt::CTRL : // Redo case Qt::Key_Z | Qt::CTRL | Qt::SHIFT : // Redo case Qt::Key_U | Qt::CTRL : // SelectionLowerCase case Qt::Key_U | Qt::CTRL | Qt::SHIFT : // SelectionUpperCase case Qt::Key_Plus | Qt::CTRL : // ZoomIn case Qt::Key_Minus | Qt::CTRL : // ZoomOut case Qt::Key_Backspace | Qt::CTRL | Qt::SHIFT : // DeleteLineLeft case Qt::Key_Delete | Qt::CTRL | Qt::SHIFT : // DeleteLineRight case Qt::Key_K | Qt::META : // DeleteLineRight case Qt::Key_Backspace | Qt::CTRL : // DeleteWordLeft case Qt::Key_Delete | Qt::CTRL : // DeleteWordRight case Qt::Key_L | Qt::CTRL | Qt::SHIFT : // LineDelete case Qt::Key_L | Qt::CTRL : // LineCut case Qt::Key_T | Qt::CTRL | Qt::SHIFT : // LineCopy cmd_list.at (i)->setKey (0); } } #endif } octave_qscintilla::~octave_qscintilla () { } void octave_qscintilla::get_global_textcursor_pos (QPoint *global_pos, QPoint *local_pos) { long position = SendScintilla (SCI_GETCURRENTPOS); long point_x = SendScintilla (SCI_POINTXFROMPOSITION,0,position); long point_y = SendScintilla (SCI_POINTYFROMPOSITION,0,position); *local_pos = QPoint (point_x,point_y); // local cursor position *global_pos = mapToGlobal (*local_pos); // global position of cursor } // determine the actual word and whether we are in an octave or matlab script bool octave_qscintilla::get_actual_word () { QPoint global_pos, local_pos; get_global_textcursor_pos (&global_pos, &local_pos); _word_at_cursor = wordAtPoint (local_pos); QString lexer_name = lexer ()->lexer (); return ((lexer_name == "octave" || lexer_name == "matlab") && !_word_at_cursor.isEmpty ()); } // call documentation or help on the current word void octave_qscintilla::context_help_doc (bool documentation) { if (get_actual_word ()) contextmenu_help_doc (documentation); } // call edit the function related to the current word void octave_qscintilla::context_edit () { if (get_actual_word ()) contextmenu_edit (true); } // call edit the function related to the current word void octave_qscintilla::context_run () { if (hasSelectedText ()) contextmenu_run (true); } #ifdef HAVE_QSCI_VERSION_2_6_0 // context menu requested void octave_qscintilla::contextMenuEvent (QContextMenuEvent *e) { QPoint global_pos, local_pos; // the menu's position QMenu *context_menu = createStandardContextMenu ( ); // standard menu // fill context menu with editor's standard actions emit create_context_menu_signal (context_menu); // determine position depending on mouse or keyboard event if (e->reason () == QContextMenuEvent::Mouse) { // context menu by mouse global_pos = e->globalPos (); // global mouse position local_pos = e->pos (); // local mouse position } else { // context menu by keyboard or other: get point of text cursor get_global_textcursor_pos (&global_pos, &local_pos); QRect editor_rect = geometry (); // editor rect mapped to global editor_rect.moveTopLeft (parentWidget ()->mapToGlobal (editor_rect.topLeft ())); if (!editor_rect.contains (global_pos)) // is cursor outside editor? global_pos = editor_rect.topLeft (); // yes, take top left corner } // additional custom entries of the context menu context_menu->addSeparator (); // separator before custom entries // help menu: get the position of the mouse or the text cursor // (only for octave files) QString lexer_name = lexer ()->lexer (); if (lexer_name == "octave" || lexer_name == "matlab") { _word_at_cursor = wordAtPoint (local_pos); if (!_word_at_cursor.isEmpty ()) { context_menu->addAction (tr ("Help on") + " " + _word_at_cursor, this, SLOT (contextmenu_help (bool))); context_menu->addAction (tr ("Documentation on") + " " + _word_at_cursor, this, SLOT (contextmenu_doc (bool))); context_menu->addAction (tr ("Edit") + " " + _word_at_cursor, this, SLOT (contextmenu_edit (bool))); } context_menu->addSeparator (); // separator before custom entries if (hasSelectedText ()) context_menu->addAction (tr ("&Run Selection"), this, SLOT (contextmenu_run (bool))); } // finaly show the menu context_menu->exec (global_pos); } #endif // handle the menu entry for calling help or doc void octave_qscintilla::contextmenu_doc (bool) { contextmenu_help_doc (true); } void octave_qscintilla::contextmenu_help (bool) { contextmenu_help_doc (false); } // common function with flag for documentation void octave_qscintilla::contextmenu_help_doc (bool documentation) { QString command; if (documentation) command = "doc "; else command = "help "; emit execute_command_in_terminal_signal (command + _word_at_cursor); } void octave_qscintilla::contextmenu_edit (bool) { emit execute_command_in_terminal_signal (QString("edit ") + _word_at_cursor); } void octave_qscintilla::contextmenu_run (bool) { QStringList commands = selectedText ().split (QRegExp("[\r\n]"), QString::SkipEmptyParts); for (int i = 0; i < commands.size (); i++ ) emit execute_command_in_terminal_signal (commands.at (i)); } void octave_qscintilla::focusInEvent (QFocusEvent *focusEvent) { emit qsci_has_focus_signal (true); QsciScintilla::focusInEvent(focusEvent); } void octave_qscintilla::focusOutEvent (QFocusEvent *focusEvent) { emit qsci_has_focus_signal (false); QsciScintilla::focusOutEvent(focusEvent); } void octave_qscintilla::text_changed () { emit status_update (isUndoAvailable (), isRedoAvailable ()); } #endif