919 lines
19 KiB
C++
919 lines
19 KiB
C++
/***********************************************************************
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* flineedit.cpp - Widget FLineEdit *
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* *
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* This file is part of the Final Cut widget toolkit *
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* *
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* Copyright 2012-2018 Markus Gans *
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* *
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* The Final Cut is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Lesser General Public License *
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* as published by the Free Software Foundation; either version 3 of *
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* the License, or (at your option) any later version. *
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* *
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* The Final Cut is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this program. If not, see *
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* <http://www.gnu.org/licenses/>. *
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***********************************************************************/
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#include "final/fapplication.h"
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#include "final/flineedit.h"
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#include "final/fstatusbar.h"
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namespace finalcut
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{
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//----------------------------------------------------------------------
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// class FLineEdit
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//----------------------------------------------------------------------
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// constructor and destructor
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//----------------------------------------------------------------------
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FLineEdit::FLineEdit(FWidget* parent)
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: FWidget(parent)
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, label{new FLabel("", parent)}
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{
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init();
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}
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//----------------------------------------------------------------------
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FLineEdit::FLineEdit (const FString& txt, FWidget* parent)
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: FWidget(parent)
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, text(txt)
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, label{new FLabel("", parent)}
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{
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init();
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setText(txt);
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}
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//----------------------------------------------------------------------
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FLineEdit::~FLineEdit() // destructor
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{
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if ( ! insert_mode )
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setInsertCursor();
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}
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// FLineEdit operators
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//----------------------------------------------------------------------
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FLineEdit& FLineEdit::operator = (const FString& s)
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{
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setText(s);
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return *this;
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}
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//----------------------------------------------------------------------
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FLineEdit& FLineEdit::operator << (const FString& s)
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{
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setText(text + s);
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return *this;
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}
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//----------------------------------------------------------------------
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FLineEdit& FLineEdit::operator << (fc::SpecialCharacter c)
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{
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setText(text + static_cast<wchar_t>(c));
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return *this;
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}
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//----------------------------------------------------------------------
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FLineEdit& FLineEdit::operator << (const wchar_t c)
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{
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setText(text + c);
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return *this;
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}
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//----------------------------------------------------------------------
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FLineEdit& FLineEdit::operator << (const uInt num)
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{
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FString num_str;
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num_str << num;
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setText(text + num_str);
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return *this;
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}
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//----------------------------------------------------------------------
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FLineEdit& FLineEdit::operator << (const int num)
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{
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FString num_str;
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num_str << num;
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setText(text + num_str);
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return *this;
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}
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//----------------------------------------------------------------------
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FLineEdit& FLineEdit::operator << (const uLong num)
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{
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FString num_str;
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num_str << num;
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setText(text + num_str);
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return *this;
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}
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//----------------------------------------------------------------------
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FLineEdit& FLineEdit::operator << (const long num)
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{
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FString num_str;
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num_str << num;
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setText(text + num_str);
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return *this;
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}
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//----------------------------------------------------------------------
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FLineEdit& FLineEdit::operator << (const float num)
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{
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FString num_str;
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num_str << num;
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setText(text + num_str);
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return *this;
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}
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//----------------------------------------------------------------------
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FLineEdit& FLineEdit::operator << (const double num)
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{
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FString num_str;
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num_str << num;
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setText(text + num_str);
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return *this;
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}
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//----------------------------------------------------------------------
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FLineEdit& FLineEdit::operator << (const lDouble num)
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{
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FString num_str;
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num_str << num;
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setText(text + num_str);
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return *this;
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}
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//----------------------------------------------------------------------
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const FLineEdit& FLineEdit::operator >> (FString& s)
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{
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s += text;
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return *this;
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}
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// public methods of FLineEdit
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//----------------------------------------------------------------------
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bool FLineEdit::setEnable (bool on)
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{
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FWidget::setEnable(on);
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if ( on )
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{
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if ( hasFocus() )
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{
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setForegroundColor (wc.inputfield_active_focus_fg);
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setBackgroundColor (wc.inputfield_active_focus_bg);
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}
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else
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{
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setForegroundColor (wc.inputfield_active_fg);
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setBackgroundColor (wc.inputfield_active_bg);
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}
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}
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else
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{
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setForegroundColor (wc.inputfield_inactive_fg);
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setBackgroundColor (wc.inputfield_inactive_bg);
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}
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return on;
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}
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//----------------------------------------------------------------------
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bool FLineEdit::setFocus (bool on)
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{
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FWidget::setFocus(on);
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if ( on )
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{
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if ( isEnabled() )
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{
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setForegroundColor (wc.inputfield_active_focus_fg);
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setBackgroundColor (wc.inputfield_active_focus_bg);
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if ( getStatusBar() )
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{
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const FString& msg = getStatusbarMessage();
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const FString& curMsg = getStatusBar()->getMessage();
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if ( curMsg != msg )
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getStatusBar()->setMessage(msg);
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}
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}
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}
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else
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{
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if ( isEnabled() )
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{
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setForegroundColor (wc.inputfield_active_fg);
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setBackgroundColor (wc.inputfield_active_bg);
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if ( getStatusBar() )
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getStatusBar()->clearMessage();
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}
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}
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return on;
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}
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//----------------------------------------------------------------------
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bool FLineEdit::setShadow (bool on)
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{
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if ( on
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&& getEncoding() != fc::VT100
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&& getEncoding() != fc::ASCII )
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{
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flags.shadow = true;
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setShadowSize(1, 1);
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}
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else
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{
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flags.shadow = false;
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setShadowSize(0, 0);
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}
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return flags.shadow;
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}
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//----------------------------------------------------------------------
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void FLineEdit::setText (const FString& txt)
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{
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text_offset = 0;
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cursor_pos = 0;
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if ( txt )
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text = txt;
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else
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text = "";
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}
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//----------------------------------------------------------------------
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void FLineEdit::setLabelText (const FString& ltxt)
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{
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label_text = ltxt;
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label->setText(label_text);
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adjustLabel();
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}
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//----------------------------------------------------------------------
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void FLineEdit::setLabelOrientation(const label_o o)
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{
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label_orientation = o;
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adjustLabel();
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}
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//----------------------------------------------------------------------
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void FLineEdit::hide()
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{
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std::size_t s, size;
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FColor fg, bg;
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auto parent_widget = getParentWidget();
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FWidget::hide();
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if ( parent_widget )
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{
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fg = parent_widget->getForegroundColor();
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bg = parent_widget->getBackgroundColor();
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}
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else
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{
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fg = wc.dialog_fg;
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bg = wc.dialog_bg;
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}
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setColor (fg, bg);
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s = hasShadow() ? 1 : 0;
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size = getWidth() + s;
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if ( size == 0 )
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return;
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auto blank = createBlankArray(size + 1);
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for (std::size_t y = 0; y < getHeight() + s; y++)
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{
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setPrintPos (1, 1 + int(y));
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print (blank);
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}
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destroyBlankArray(blank);
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if ( label )
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label->hide();
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}
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//----------------------------------------------------------------------
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void FLineEdit::clear()
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{
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text_offset = 0;
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cursor_pos = 0;
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text.clear();
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}
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//----------------------------------------------------------------------
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void FLineEdit::onKeyPress (FKeyEvent* ev)
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{
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FKey key = ev->key();
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switch ( key )
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{
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case fc::Fkey_left:
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keyLeft();
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ev->accept();
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break;
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case fc::Fkey_right:
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keyRight();
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ev->accept();
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break;
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case fc::Fkey_home:
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keyHome();
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ev->accept();
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break;
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case fc::Fkey_end:
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keyEnd();
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ev->accept();
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break;
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case fc::Fkey_dc: // del key
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keyDel();
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ev->accept();
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break;
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case fc::Fkey_erase:
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case fc::Fkey_backspace:
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keyBackspace();
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ev->accept();
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break;
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case fc::Fkey_ic: // insert key
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keyInsert();
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ev->accept();
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break;
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case fc::Fkey_return:
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case fc::Fkey_enter:
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keyEnter();
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ev->accept();
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break;
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case fc::Fkey_tab:
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ev->ignore();
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break;
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default:
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if ( keyInput(key) )
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ev->accept();
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}
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// end of switch
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if ( ev->isAccepted()
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&& key != fc::Fkey_return
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&& key != fc::Fkey_enter )
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{
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drawInputField();
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updateTerminal();
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}
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}
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//----------------------------------------------------------------------
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void FLineEdit::onMouseDown (FMouseEvent* ev)
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{
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int mouse_x, mouse_y;
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if ( ev->getButton() != fc::LeftButton )
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return;
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if ( ! hasFocus() )
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{
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auto focused_widget = getFocusWidget();
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FFocusEvent out (fc::FocusOut_Event);
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FApplication::queueEvent(focused_widget, &out);
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setFocus();
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if ( focused_widget )
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focused_widget->redraw();
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redraw();
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if ( getStatusBar() )
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getStatusBar()->drawMessage();
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}
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mouse_x = ev->getX();
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mouse_y = ev->getY();
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if ( mouse_x >= 2 && mouse_x <= int(getWidth()) && mouse_y == 1 )
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{
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std::size_t len = text.getLength();
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cursor_pos = text_offset + std::size_t(mouse_x) - 2;
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if ( cursor_pos >= len )
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cursor_pos = len;
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drawInputField();
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updateTerminal();
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}
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}
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//----------------------------------------------------------------------
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void FLineEdit::onMouseUp (FMouseEvent*)
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{
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if ( drag_scroll != FLineEdit::noScroll )
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{
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delOwnTimer();
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drag_scroll = FLineEdit::noScroll;
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scroll_timer = false;
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}
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}
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//----------------------------------------------------------------------
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void FLineEdit::onMouseMove (FMouseEvent* ev)
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{
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std::size_t len;
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int mouse_x, mouse_y;
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if ( ev->getButton() != fc::LeftButton )
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return;
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len = text.getLength();
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mouse_x = ev->getX();
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mouse_y = ev->getY();
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if ( mouse_x >= 2 && mouse_x <= int(getWidth()) && mouse_y == 1 )
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{
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cursor_pos = text_offset + std::size_t(mouse_x) - 2;
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if ( cursor_pos >= len )
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cursor_pos = len;
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drawInputField();
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updateTerminal();
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}
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// auto-scrolling when dragging mouse outside the widget
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if ( mouse_x < 2 )
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{
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// drag left
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if ( ! scroll_timer && text_offset > 0 )
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{
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scroll_timer = true;
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addTimer(scroll_repeat);
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drag_scroll = FLineEdit::scrollLeft;
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}
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if ( text_offset == 0 )
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{
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delOwnTimer();
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drag_scroll = FLineEdit::noScroll;
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}
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}
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else if ( mouse_x >= int(getWidth()) )
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{
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// drag right
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if ( ! scroll_timer && text_offset <= len - getWidth() + 1 )
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{
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scroll_timer = true;
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addTimer(scroll_repeat);
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drag_scroll = FLineEdit::scrollRight;
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}
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if ( text_offset == len - getWidth() + 2 )
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{
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delOwnTimer();
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drag_scroll = FLineEdit::noScroll;
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}
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}
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else
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{
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// no dragging
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delOwnTimer();
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scroll_timer = false;
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drag_scroll = FLineEdit::noScroll;
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}
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}
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//----------------------------------------------------------------------
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void FLineEdit::onTimer (FTimerEvent*)
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{
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std::size_t len = text.getLength();
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switch ( int(drag_scroll) )
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{
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case FLineEdit::noScroll:
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return;
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case FLineEdit::scrollLeft:
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if ( text_offset == 0 )
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{
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drag_scroll = FLineEdit::noScroll;
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return;
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}
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text_offset--;
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if ( cursor_pos > 0 )
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cursor_pos--;
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break;
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case FLineEdit::scrollRight:
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if ( len < getWidth() - 2
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|| text_offset == len - getWidth() + 2 )
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{
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drag_scroll = FLineEdit::noScroll;
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return;
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}
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if ( text_offset <= len - getWidth() + 1 )
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text_offset++;
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if ( cursor_pos < len )
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cursor_pos++;
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break;
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default:
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break;
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}
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drawInputField();
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updateTerminal();
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}
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//----------------------------------------------------------------------
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void FLineEdit::onAccel (FAccelEvent* ev)
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{
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if ( ! isEnabled() )
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return;
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if ( ! hasFocus() )
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{
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auto focused_widget = static_cast<FWidget*>(ev->focusedWidget());
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if ( focused_widget && focused_widget->isWidget() )
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{
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FFocusEvent out (fc::FocusOut_Event);
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FApplication::queueEvent(focused_widget, &out);
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setFocus();
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focused_widget->redraw();
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redraw();
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if ( getStatusBar() )
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{
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getStatusBar()->drawMessage();
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updateTerminal();
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flush_out();
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}
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}
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}
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ev->accept();
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}
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//----------------------------------------------------------------------
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void FLineEdit::onHide (FHideEvent*)
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{
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if ( ! insert_mode )
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setInsertCursor();
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}
|
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//----------------------------------------------------------------------
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void FLineEdit::onFocusIn (FFocusEvent*)
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{
|
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if ( insert_mode )
|
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setInsertCursor();
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else
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unsetInsertCursor();
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|
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if ( getStatusBar() )
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{
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getStatusBar()->drawMessage();
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updateTerminal();
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flush_out();
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}
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}
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|
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//----------------------------------------------------------------------
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void FLineEdit::onFocusOut (FFocusEvent*)
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{
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if ( getStatusBar() )
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{
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getStatusBar()->clearMessage();
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getStatusBar()->drawMessage();
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}
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|
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if ( ! insert_mode )
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setInsertCursor();
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}
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|
|
|
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// protected methods of FListBox
|
|
//----------------------------------------------------------------------
|
|
void FLineEdit::adjustLabel()
|
|
{
|
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std::size_t label_length = label_text.getLength();
|
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|
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if ( hasHotkey() )
|
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label_length--;
|
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|
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assert ( label_orientation == label_above
|
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|| label_orientation == label_left );
|
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|
|
switch ( label_orientation )
|
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{
|
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case label_above:
|
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label->setGeometry(getX(), getY() - 1, label_length, 1);
|
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break;
|
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|
|
case label_left:
|
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label->setGeometry(getX() - int(label_length) - 1, getY()
|
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, label_length, 1);
|
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break;
|
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}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FLineEdit::adjustSize()
|
|
{
|
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FWidget::adjustSize();
|
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adjustLabel();
|
|
}
|
|
|
|
|
|
// private methods of FLineEdit
|
|
//----------------------------------------------------------------------
|
|
void FLineEdit::init()
|
|
{
|
|
label->setAccelWidget(this);
|
|
setVisibleCursor();
|
|
setShadow();
|
|
|
|
if ( isEnabled() )
|
|
{
|
|
if ( hasFocus() )
|
|
{
|
|
setForegroundColor (wc.inputfield_active_focus_fg);
|
|
setBackgroundColor (wc.inputfield_active_focus_bg);
|
|
}
|
|
else
|
|
{
|
|
setForegroundColor (wc.inputfield_active_fg);
|
|
setBackgroundColor (wc.inputfield_active_bg);
|
|
}
|
|
}
|
|
else // inactive
|
|
{
|
|
setForegroundColor (wc.inputfield_inactive_fg);
|
|
setBackgroundColor (wc.inputfield_inactive_bg);
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
bool FLineEdit::hasHotkey()
|
|
{
|
|
if ( label_text.isEmpty() )
|
|
return 0;
|
|
|
|
return label_text.includes('&');
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FLineEdit::draw()
|
|
{
|
|
drawInputField();
|
|
|
|
if ( flags.focus && getStatusBar() )
|
|
{
|
|
const FString& msg = getStatusbarMessage();
|
|
const FString& curMsg = getStatusBar()->getMessage();
|
|
|
|
if ( curMsg != msg )
|
|
{
|
|
getStatusBar()->setMessage(msg);
|
|
getStatusBar()->drawMessage();
|
|
}
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FLineEdit::drawInputField()
|
|
{
|
|
std::size_t x;
|
|
FString show_text;
|
|
bool isActiveFocus = flags.active && flags.focus;
|
|
setPrintPos (1, 1);
|
|
|
|
if ( isMonochron() )
|
|
{
|
|
setReverse(true);
|
|
print (' ');
|
|
|
|
if ( isActiveFocus )
|
|
setReverse(false);
|
|
else
|
|
setUnderline(true);
|
|
}
|
|
else
|
|
{
|
|
setColor();
|
|
print (' ');
|
|
}
|
|
|
|
if ( isActiveFocus && getMaxColor() < 16 )
|
|
setBold();
|
|
|
|
show_text = text.mid(1 + text_offset, getWidth() - 2);
|
|
|
|
if ( isLinuxTerm() && hasUTF8() )
|
|
{
|
|
setUTF8(true);
|
|
|
|
if ( show_text )
|
|
print (show_text);
|
|
|
|
setUTF8(false);
|
|
}
|
|
else if ( show_text )
|
|
print (show_text);
|
|
|
|
x = show_text.getLength();
|
|
|
|
while ( x < getWidth() - 1 )
|
|
{
|
|
print (' ');
|
|
x++;
|
|
}
|
|
|
|
if ( isActiveFocus && getMaxColor() < 16 )
|
|
unsetBold();
|
|
|
|
if ( isMonochron() )
|
|
{
|
|
setReverse(false);
|
|
setUnderline(false);
|
|
}
|
|
|
|
if ( flags.shadow )
|
|
drawShadow ();
|
|
|
|
// set the cursor to the first pos.
|
|
setCursorPos (int(2 + cursor_pos - text_offset), 1);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
inline void FLineEdit::keyLeft()
|
|
{
|
|
if ( cursor_pos > 0 )
|
|
cursor_pos--;
|
|
|
|
if ( cursor_pos < text_offset )
|
|
text_offset--;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
inline void FLineEdit::keyRight()
|
|
{
|
|
std::size_t len = text.getLength();
|
|
|
|
if ( cursor_pos < len )
|
|
cursor_pos++;
|
|
|
|
if ( cursor_pos - text_offset >= getWidth() - 2
|
|
&& text_offset <= len - getWidth() + 1 )
|
|
text_offset++;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
inline void FLineEdit::keyHome()
|
|
{
|
|
cursor_pos = 0;
|
|
text_offset = 0;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
inline void FLineEdit::keyEnd()
|
|
{
|
|
std::size_t len = text.getLength();
|
|
cursor_pos = len;
|
|
|
|
if ( cursor_pos >= getWidth() - 1 )
|
|
text_offset = len - getWidth() + 2;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
inline void FLineEdit::keyDel()
|
|
{
|
|
std::size_t len = text.getLength();
|
|
|
|
if ( len > 0 && cursor_pos < len )
|
|
{
|
|
text.remove(cursor_pos, 1);
|
|
processChanged();
|
|
}
|
|
|
|
if ( cursor_pos >= len )
|
|
cursor_pos = len;
|
|
|
|
if ( text_offset > 0 && len - text_offset < getWidth() - 1 )
|
|
text_offset--;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
inline void FLineEdit::keyBackspace()
|
|
{
|
|
if ( text.getLength() > 0 && cursor_pos > 0 )
|
|
{
|
|
text.remove(cursor_pos - 1, 1);
|
|
processChanged();
|
|
cursor_pos--;
|
|
|
|
if ( text_offset > 0 )
|
|
text_offset--;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
inline void FLineEdit::keyInsert()
|
|
{
|
|
insert_mode = ! insert_mode;
|
|
|
|
if ( insert_mode )
|
|
setInsertCursor();
|
|
else
|
|
unsetInsertCursor();
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
inline void FLineEdit::keyEnter()
|
|
{
|
|
processActivate();
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
inline bool FLineEdit::keyInput (FKey key)
|
|
{
|
|
if ( key >= 0x20 && key <= 0x10fff )
|
|
{
|
|
std::size_t len = text.getLength();
|
|
|
|
if ( cursor_pos == len )
|
|
{
|
|
text += wchar_t(key);
|
|
processChanged();
|
|
}
|
|
else if ( len > 0 )
|
|
{
|
|
if ( insert_mode )
|
|
text.insert(wchar_t(key), cursor_pos);
|
|
else
|
|
text.overwrite(wchar_t(key), cursor_pos);
|
|
|
|
processChanged();
|
|
}
|
|
else
|
|
{
|
|
text = wchar_t(key);
|
|
processChanged();
|
|
}
|
|
|
|
cursor_pos++;
|
|
|
|
if ( cursor_pos >= getWidth() - 1 )
|
|
text_offset++;
|
|
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FLineEdit::processActivate()
|
|
{
|
|
if ( ! hasFocus() )
|
|
{
|
|
setFocus();
|
|
redraw();
|
|
}
|
|
|
|
emitCallback("activate");
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FLineEdit::processChanged()
|
|
{
|
|
emitCallback("changed");
|
|
}
|
|
|
|
} // namespace finalcut
|