Aegisub/aegisub/src/dialog_progress.cpp

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// Copyright (c) 2011, Thomas Goyne <plorkyeran@aegisub.org>
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//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
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//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
// $Id$
/// @file dialog_progress.cpp
/// @brief Progress-bar dialog box for displaying during long operations
/// @ingroup utility
///
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#include "config.h"
#include "dialog_progress.h"
#include <libaegisub/exception.h>
#include "compat.h"
#include "utils.h"
#ifndef AGI_PRE
#include <wx/button.h>
#include <wx/gauge.h>
#include <wx/sizer.h>
#include <wx/stattext.h>
#include <wx/textctrl.h>
#endif
wxDEFINE_EVENT(EVT_TITLE, wxThreadEvent);
wxDEFINE_EVENT(EVT_MESSAGE, wxThreadEvent);
wxDEFINE_EVENT(EVT_PROGRESS, wxThreadEvent);
wxDEFINE_EVENT(EVT_INDETERMINATE, wxThreadEvent);
wxDEFINE_EVENT(EVT_LOG, wxThreadEvent);
wxDEFINE_EVENT(EVT_COMPLETE, wxThreadEvent);
class DialogProgressSink : public agi::ProgressSink {
DialogProgress *dialog;
bool cancelled;
wxMutex cancelled_mutex;
template<class T>
void SafeQueue(wxEventType type, T const& value) {
wxThreadEvent *evt = new wxThreadEvent(type);
evt->SetPayload(value);
wxQueueEvent(dialog, evt);
}
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public:
DialogProgressSink(DialogProgress *dialog)
: dialog(dialog)
, cancelled(false)
{
}
void SetTitle(std::string const& title) {
SafeQueue(EVT_TITLE, lagi_wxString(title));
}
void SetMessage(std::string const& msg) {
SafeQueue(EVT_MESSAGE, lagi_wxString(msg));
}
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void SetProgress(int cur, int max) {
SafeQueue(EVT_PROGRESS, int(double(cur) / max * 100));
}
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void Log(std::string const& str) {
SafeQueue(EVT_LOG, lagi_wxString(str));
}
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bool IsCancelled() {
wxMutexLocker l(cancelled_mutex);
return cancelled;
}
void Cancel() {
wxMutexLocker l(cancelled_mutex);
cancelled = true;
}
void SetIndeterminate() {
wxQueueEvent(dialog, new wxThreadEvent(EVT_INDETERMINATE));
}
};
class TaskRunner : public wxThread {
std::tr1::function<void(agi::ProgressSink*)> task;
agi::ProgressSink *ps;
wxDialog *dialog;
public:
TaskRunner(std::tr1::function<void(agi::ProgressSink*)> task, agi::ProgressSink *ps, wxDialog *dialog, int priority)
: task(task)
, ps(ps)
, dialog(dialog)
{
Create();
if (priority != -1)
SetPriority(priority);
Run();
}
wxThread::ExitCode Entry() {
task(ps);
wxQueueEvent(dialog, new wxThreadEvent(EVT_COMPLETE));
return 0;
}
};
DialogProgress::DialogProgress(wxWindow *parent, wxString const& title_text, wxString const& message)
: wxDialog(parent, -1, title_text, wxDefaultPosition, wxDefaultSize, wxBORDER_RAISED)
, pulse_timer(GetEventHandler())
{
title = new wxStaticText(this, -1, title_text, wxDefaultPosition, wxDefaultSize, wxALIGN_CENTRE | wxST_NO_AUTORESIZE);
gauge = new wxGauge(this, -1, 100, wxDefaultPosition, wxSize(300,20));
text = new wxStaticText(this, -1, message, wxDefaultPosition, wxDefaultSize, wxALIGN_CENTRE | wxST_NO_AUTORESIZE);
cancel_button = new wxButton(this, wxID_CANCEL);
log_output = new wxTextCtrl(this, -1, "", wxDefaultPosition, wxSize(300, 120), wxTE_MULTILINE | wxTE_READONLY);
// make the title a slightly larger font
wxFont title_font = title->GetFont();
int fontsize = title_font.GetPointSize();
title_font.SetPointSize(fontsize * 1.375);
title_font.SetWeight(wxFONTWEIGHT_BOLD);
title->SetFont(title_font);
wxSizer *sizer = new wxBoxSizer(wxVERTICAL);
sizer->Add(title, wxSizerFlags().Expand().Center());
sizer->Add(gauge, wxSizerFlags(1).Expand().Border());
sizer->Add(text, wxSizerFlags().Expand().Center());
sizer->Add(cancel_button, wxSizerFlags().Center().Border());
sizer->Add(log_output, wxSizerFlags().Expand().Border(wxALL & ~wxTOP));
sizer->Hide(log_output);
SetSizerAndFit(sizer);
CenterOnParent();
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Bind(wxEVT_SHOW, &DialogProgress::OnShow, this);
Bind(wxEVT_TIMER, &DialogProgress::OnPulseTimer, this);
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Bind(EVT_TITLE, &DialogProgress::OnSetTitle, this);
Bind(EVT_MESSAGE, &DialogProgress::OnSetMessage, this);
Bind(EVT_PROGRESS, &DialogProgress::OnSetProgress, this);
Bind(EVT_INDETERMINATE, &DialogProgress::OnSetIndeterminate, this);
Bind(EVT_COMPLETE, &DialogProgress::OnComplete, this);
Bind(EVT_LOG, &DialogProgress::OnLog, this);
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}
void DialogProgress::Run(std::tr1::function<void(agi::ProgressSink*)> task, int priority) {
DialogProgressSink ps(this);
this->ps = &ps;
new TaskRunner(task, &ps, this, priority);
if (!ShowModal())
throw agi::UserCancelException("Cancelled by user");
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}
void DialogProgress::OnShow(wxShowEvent&) {
// Restore the cancel button in case it was previously switched to a close
// button
Bind(wxEVT_COMMAND_BUTTON_CLICKED, &DialogProgress::OnCancel, this, wxID_CANCEL);
cancel_button->SetLabelText(_("Cancel"));
cancel_button->Enable();
wxSizer *sizer = GetSizer();
if (sizer->IsShown(log_output)) {
sizer->Hide(log_output);
Layout();
sizer->Fit(this);
log_output->Clear();
}
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}
void DialogProgress::OnSetTitle(wxThreadEvent &evt) {
title->SetLabelText(evt.GetPayload<wxString>());
}
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void DialogProgress::OnSetMessage(wxThreadEvent &evt) {
text->SetLabelText(evt.GetPayload<wxString>());
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}
void DialogProgress::OnSetProgress(wxThreadEvent &evt) {
gauge->SetValue(mid(0, evt.GetPayload<int>(), 100));
}
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void DialogProgress::OnSetIndeterminate(wxThreadEvent &evt) {
pulse_timer.Start(1000);
}
void DialogProgress::OnComplete(wxThreadEvent &evt) {
pulse_timer.Stop();
// Unbind the cancel handler so that the default behavior happens (i.e. the
// dialog is closed) as there's no longer a task to cancel
Unbind(wxEVT_COMMAND_BUTTON_CLICKED, &DialogProgress::OnCancel, this, wxID_CANCEL);
// If it ran to completion and there is debug output, leave the window open
// so the user can read the debug output and switch the cancel button to a
// close button
bool cancelled = ps->IsCancelled();
if (cancelled || log_output->IsEmpty())
EndModal(!cancelled);
else
cancel_button->SetLabelText(_("Close"));
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}
void DialogProgress::OnLog(wxThreadEvent &evt) {
if (log_output->IsEmpty()) {
wxSizer *sizer = GetSizer();
sizer->Show(log_output);
Layout();
sizer->Fit(this);
}
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*log_output << evt.GetPayload<wxString>();
log_output->SetInsertionPointEnd();
}
void DialogProgress::OnCancel(wxCommandEvent &evt) {
ps->Cancel();
cancel_button->Enable(false);
cancel_button->SetLabelText(_("Cancelling..."));
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}
void DialogProgress::OnPulseTimer(wxTimerEvent&) {
gauge->Pulse();
}