kicad/common/scintilla_tricks.cpp

211 lines
6.0 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2020 KiCad Developers, see change_log.txt for contributors.
*
* This program 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 2
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <fctsys.h>
#include <scintilla_tricks.h>
#include <gal/color4d.h>
#include <dialog_shim.h>
SCINTILLA_TRICKS::SCINTILLA_TRICKS( wxStyledTextCtrl* aScintilla, const wxString& aBraces ) :
m_te( aScintilla ),
m_braces( aBraces ),
m_lastCaretPos( -1 )
{
// A hack which causes Scintilla to auto-size the text editor canvas
// See: https://github.com/jacobslusser/ScintillaNET/issues/216
m_te->SetScrollWidth( 1 );
m_te->SetScrollWidthTracking( true );
// Set up the brace highlighting
wxColour highlight = wxSystemSettings::GetColour( wxSYS_COLOUR_HIGHLIGHT );
wxColour highlightText = wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOWTEXT );
if( KIGFX::COLOR4D( highlightText ).GetBrightness() > 0.5 )
highlight = highlight.ChangeLightness( 80 );
else
highlight = highlight.ChangeLightness( 120 );
m_te->StyleSetForeground( wxSTC_STYLE_BRACELIGHT, highlightText );
m_te->StyleSetBackground( wxSTC_STYLE_BRACELIGHT, highlight );
m_te->StyleSetForeground( wxSTC_STYLE_BRACEBAD, *wxRED );
// Set up autocomplete
m_te->AutoCompSetIgnoreCase( true );
m_te->AutoCompSetFillUps( m_braces[1] );
m_te->AutoCompSetMaxHeight( 20 );
// Hook up events
m_te->Bind( wxEVT_STC_UPDATEUI, &SCINTILLA_TRICKS::onScintillaUpdateUI, this );
// Dispatch command-keys in Scintilla control.
m_te->Bind( wxEVT_CHAR_HOOK, &SCINTILLA_TRICKS::onCharHook, this );
}
bool SCINTILLA_TRICKS::isCtrl( int aChar, const wxKeyEvent& e )
{
return e.GetKeyCode() == aChar && e.ControlDown() && !e.AltDown() &&
!e.ShiftDown() && !e.MetaDown();
}
bool SCINTILLA_TRICKS::isShiftCtrl( int aChar, const wxKeyEvent& e )
{
return e.GetKeyCode() == aChar && e.ControlDown() && !e.AltDown() &&
e.ShiftDown() && !e.MetaDown();
}
void SCINTILLA_TRICKS::onCharHook( wxKeyEvent& aEvent )
{
if( aEvent.GetKeyCode() == WXK_TAB )
{
if( aEvent.ControlDown() )
{
int flags = 0;
if( !aEvent.ShiftDown() )
flags |= wxNavigationKeyEvent::IsForward;
wxWindow* parent = m_te->GetParent();
while( parent && dynamic_cast<DIALOG_SHIM*>( parent ) == nullptr )
parent = parent->GetParent();
if( parent )
parent->NavigateIn( flags );
}
else
{
m_te->Tab();
}
}
else if( isCtrl( 'Z', aEvent ) )
{
m_te->Undo();
}
else if( isShiftCtrl( 'Z', aEvent ) || isCtrl( 'Y', aEvent ) )
{
m_te->Redo();
}
else if( isCtrl( 'X', aEvent ) )
{
m_te->Cut();
}
else if( isCtrl( 'C', aEvent ) )
{
m_te->Copy();
}
else if( isCtrl( 'V', aEvent ) )
{
m_te->Paste();
}
else if( aEvent.GetKeyCode() == WXK_BACK )
{
m_te->DeleteBack();
}
else if( aEvent.GetKeyCode() == WXK_DELETE )
{
if( m_te->GetSelectionEnd() > m_te->GetSelectionStart() )
m_te->DeleteBack();
}
else
{
aEvent.Skip();
}
}
void SCINTILLA_TRICKS::onScintillaUpdateUI( wxStyledTextEvent& aEvent )
{
auto isBrace = [this]( int c ) -> bool
{
return m_braces.Find( (wxChar) c ) >= 0;
};
// Has the caret changed position?
int caretPos = m_te->GetCurrentPos();
if( m_lastCaretPos != caretPos )
{
m_lastCaretPos = caretPos;
int bracePos1 = -1;
int bracePos2 = -1;
// Is there a brace to the left or right?
if( caretPos > 0 && isBrace( m_te->GetCharAt( caretPos-1 ) ) )
bracePos1 = ( caretPos - 1 );
else if( isBrace( m_te->GetCharAt( caretPos ) ) )
bracePos1 = caretPos;
if( bracePos1 >= 0 )
{
// Find the matching brace
bracePos2 = m_te->BraceMatch( bracePos1 );
if( bracePos2 == -1 )
{
m_te->BraceBadLight( bracePos1 );
m_te->SetHighlightGuide( 0 );
}
else
{
m_te->BraceHighlight( bracePos1, bracePos2 );
m_te->SetHighlightGuide( m_te->GetColumn( bracePos1 ) );
}
}
else
{
// Turn off brace matching
m_te->BraceHighlight( -1, -1 );
m_te->SetHighlightGuide( 0 );
}
}
}
void SCINTILLA_TRICKS::DoAutocomplete( const wxString& aPartial, const wxArrayString& aTokens )
{
wxArrayString matchedTokens;
wxString filter = wxT( "*" ) + aPartial.Lower() + wxT( "*" );
for( const wxString& token : aTokens )
{
if( token.Lower().Matches( filter ) )
matchedTokens.push_back( token );
}
if( matchedTokens.size() > 0 )
{
// NB: tokens MUST be in alphabetical order because the Scintilla engine is going
// to do a binary search on them
matchedTokens.Sort();
m_te->AutoCompShow( aPartial.size(), wxJoin( matchedTokens, ' ' ) );
}
}