/*********************************************************************** * fprogressbar.cpp - Widget FProgressbar * * * * This file is part of the Final Cut widget toolkit * * * * Copyright 2014-2017 Markus Gans * * * * The Final Cut is free software; you can redistribute it and/or * * modify it under the terms of the GNU Lesser General Public License * * as published by the Free Software Foundation; either version 3 of * * the License, or (at your option) any later version. * * * * The Final Cut 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 Lesser General Public License for more details. * * * * You should have received a copy of the GNU Lesser General Public * * License along with this program. If not, see * * . * ***********************************************************************/ #include "final/fprogressbar.h" //---------------------------------------------------------------------- // class FProgressbar //---------------------------------------------------------------------- // constructors and destructor //---------------------------------------------------------------------- FProgressbar::FProgressbar(FWidget* parent) : FWidget(parent) , percentage(-1) , bar_length(getWidth()) { unsetFocusable(); setShadow(); } //---------------------------------------------------------------------- FProgressbar::~FProgressbar() // destructor { } // public methods of FProgressbar //---------------------------------------------------------------------- void FProgressbar::setPercentage (int percentage_value) { if ( percentage_value <= percentage ) return; if ( percentage_value > 100 ) percentage = 100; else if ( percentage_value < 0 ) percentage = 0; else percentage = percentage_value; if ( isVisible() ) { drawPercentage(); drawBar(); } updateTerminal(); } //---------------------------------------------------------------------- void FProgressbar::setGeometry (int x, int y, int w, int h, bool adjust) { // Set the progress bar geometry FWidget::setGeometry (x, y, w, h, adjust); bar_length = w; } //---------------------------------------------------------------------- bool FProgressbar::setShadow (bool on) { if ( on && getEncoding() != fc::VT100 && getEncoding() != fc::ASCII ) { flags |= fc::shadow; setShadowSize(1,1); } else { flags &= ~fc::shadow; setShadowSize(0,0); } return on; } //---------------------------------------------------------------------- void FProgressbar::hide() { int s, size; short fg, bg; char* blank; FWidget* parent_widget = getParentWidget(); FWidget::hide(); if ( parent_widget ) { fg = parent_widget->getForegroundColor(); bg = parent_widget->getBackgroundColor(); } else { fg = wc.dialog_fg; bg = wc.dialog_bg; } setColor (fg, bg); s = hasShadow() ? 1 : 0; size = getWidth() + s; if ( size < 0 ) return; try { blank = new char[size + 1]; } catch (const std::bad_alloc& ex) { std::cerr << "not enough memory to alloc " << ex.what() << std::endl; return; } std::memset(blank, ' ', uLong(size)); blank[size] = '\0'; for (int y = 0; y < getHeight() + s; y++) { setPrintPos (1, 1 + y); print (blank); } delete[] blank; setPrintPos (getWidth() - 4, 0); print (" "); // hide percentage } //---------------------------------------------------------------------- void FProgressbar::reset() { percentage = -1; if ( isVisible() ) { drawPercentage(); drawBar(); } updateTerminal(); } // private methods of FProgressbar //---------------------------------------------------------------------- void FProgressbar::draw() { drawPercentage(); drawBar(); if ( (flags & fc::shadow) != 0 ) drawShadow (); flush_out(); } //---------------------------------------------------------------------- void FProgressbar::drawPercentage() { FWidget* parent_widget = getParentWidget(); if ( parent_widget ) setColor ( parent_widget->getForegroundColor() , parent_widget->getBackgroundColor() ); else setColor ( wc.dialog_fg, wc.dialog_bg ); if ( isMonochron() ) setReverse(true); setPrintPos (getWidth() - 3, 0); if ( percentage < 0 || percentage > 100 ) print ("--- %"); else printf ("%3d %%", percentage); if ( isMonochron() ) setReverse(false); } //---------------------------------------------------------------------- void FProgressbar::drawBar() { int i = 0; double length = double(bar_length * percentage) / 100; setPrintPos (1,1); setColor ( wc.progressbar_bg , wc.progressbar_fg ); if ( isMonochron() ) setReverse(false); for (; i < trunc(length); i++) print (' '); if ( isMonochron() ) setReverse(true); if ( percentage > 0.0f && trunc(length) < bar_length ) { if ( round(length) > trunc(length) || getMaxColor() < 16 ) { if ( isMonochron() ) { setReverse(false); print (' '); setReverse(true); } else print (' '); } else { setColor (wc.progressbar_fg, wc.progressbar_bg); print (fc::LeftHalfBlock); // ▌ } i++; } setColor (wc.progressbar_fg, wc.progressbar_bg); if ( getMaxColor() < 16 ) { for (; i < bar_length; i++) print (fc::MediumShade); // ▒ } else { for (; i < bar_length; i++) print (' '); } if ( isMonochron() ) setReverse(false); updateTerminal(); flush_out(); }