107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
// Copyright (c) 2011, Niels Martin Hansen <nielsm@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
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// $Id$
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/// @file progress.cpp
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/// @brief Progress bars.
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/// @ingroup libaegisub
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#ifndef LAG_PRE
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#include <assert.h>
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#include <string>
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#include <iomanip>
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#include <iostream>
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#include <cmath>
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#endif
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#include "libaegisub/progress.h"
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namespace agi {
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class NullProgressSink : public ProgressSink {
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public:
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virtual void set_progress(int steps, int max) { }
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virtual void set_operation(const std::string &operation) { }
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virtual bool get_cancelled() const { return false; }
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};
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ProgressSink * NullProgressSinkFactory::create_progress_sink(const std::string &title) const {
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return new NullProgressSink;
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}
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class StdioProgressSink : public ProgressSink {
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private:
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std::string operation;
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float progress;
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void print();
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public:
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StdioProgressSink(const std::string &title);
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virtual ~StdioProgressSink();
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virtual void set_progress(int steps, int max);
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virtual void set_operation(const std::string &operation);
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virtual bool get_cancelled() const { return false; } // or maybe see if there is an ESC waiting or get a ^C sent flag
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};
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ProgressSink * StdioProgressSinkFactory::create_progress_sink(const std::string &title) const {
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return new StdioProgressSink(title);
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}
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StdioProgressSink::StdioProgressSink(const std::string &title)
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: operation(title)
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, progress(0) {
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std::cout << title << ": ";
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print();
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}
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StdioProgressSink::~StdioProgressSink()
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{
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std::cout << "end" << std::endl;
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}
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void StdioProgressSink::set_progress(int steps, int max) {
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assert(steps >= 0);
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assert(steps <= max);
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float old_progress = progress;
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progress = (100.f * steps)/max;
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if (std::fabs(progress-old_progress) > 0.8)
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{
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print();
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}
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}
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void StdioProgressSink::set_operation(const std::string &operation) {
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this->operation = operation;
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print();
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}
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void StdioProgressSink::print() {
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std::cout << operation << ": " << std::setprecision(2) << progress << std::endl;
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}
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} // namespace agi
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