+ unify DLL export defines to namespace names
git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5000 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
This commit is contained in:
wmayer
484
src/Gui/ProgressBar.cpp
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484
src/Gui/ProgressBar.cpp
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/***************************************************************************
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* Copyright (c) 2004 Werner Mayer <wmayer[at]users.sourceforge.net> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library 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 Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <QApplication>
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# include <QGenericReturnArgument>
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# include <QKeyEvent>
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# include <QMessageBox>
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# include <QMetaObject>
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# include <QStatusBar>
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# include <QThread>
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# include <QTime>
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# include <QTimer>
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#endif
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#include "ProgressBar.h"
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#include "MainWindow.h"
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#include "WaitCursor.h"
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using namespace Gui;
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namespace Gui {
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struct SequencerPrivate
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{
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ProgressBar* bar;
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WaitCursor* waitCursor;
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QTime measureTime;
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QTime progressTime;
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QString text;
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bool guiThread;
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};
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struct ProgressBarPrivate
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{
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QTimer* delayShowTimer;
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int minimumDuration;
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int observeEventFilter;
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};
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}
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Sequencer* Sequencer::_pclSingleton = 0;
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Sequencer* Sequencer::instance()
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{
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// not initialized?
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if (!_pclSingleton)
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{
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_pclSingleton = new Sequencer();
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}
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return _pclSingleton;
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}
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Sequencer::Sequencer ()
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{
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d = new SequencerPrivate;
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d->bar = 0;
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d->waitCursor = 0;
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d->guiThread = true;
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}
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Sequencer::~Sequencer ()
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{
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delete d;
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}
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void Sequencer::pause()
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{
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QThread *currentThread = QThread::currentThread();
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QThread *thr = d->bar->thread(); // this is the main thread
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if (thr != currentThread)
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return;
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// allow key handling of dialog and restore cursor
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d->bar->leaveControlEvents();
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d->waitCursor->restoreCursor();
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QApplication::setOverrideCursor(Qt::ArrowCursor);
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}
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void Sequencer::resume()
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{
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QThread *currentThread = QThread::currentThread();
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QThread *thr = d->bar->thread(); // this is the main thread
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if (thr != currentThread)
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return;
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QApplication::restoreOverrideCursor();
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d->waitCursor->setWaitCursor();
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// must be called as last to get control before WaitCursor
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d->bar->enterControlEvents(); // grab again
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}
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void Sequencer::startStep()
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{
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QThread *currentThread = QThread::currentThread();
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QThread *thr = d->bar->thread(); // this is the main thread
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if (thr != currentThread) {
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d->guiThread = false;
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d->bar->setRange(0, (int)nTotalSteps);
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if (nTotalSteps == 0) {
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d->progressTime.start();
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}
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d->measureTime.start();
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QMetaObject::invokeMethod(d->bar, "aboutToShow", Qt::QueuedConnection);
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}
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else {
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d->guiThread = true;
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d->bar->setRange(0, (int)nTotalSteps);
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if (nTotalSteps == 0) {
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d->progressTime.start();
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}
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d->measureTime.start();
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d->waitCursor = new Gui::WaitCursor;
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d->bar->enterControlEvents();
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d->bar->aboutToShow();
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}
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}
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void Sequencer::nextStep(bool canAbort)
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{
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QThread *currentThread = QThread::currentThread();
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QThread *thr = d->bar->thread(); // this is the main thread
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if (thr != currentThread) {
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setValue((int)nProgress+1);
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}
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else {
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if (wasCanceled() && canAbort) {
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// restore cursor
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pause();
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bool ok = d->bar->canAbort();
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// continue and show up wait cursor if needed
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resume();
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// force to abort the operation
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if ( ok ) {
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abort();
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} else {
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rejectCancel();
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setValue((int)nProgress+1);
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}
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}
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else {
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setValue((int)nProgress+1);
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}
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}
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}
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void Sequencer::setProgress(size_t step)
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{
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d->bar->show();
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setValue((int)step);
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}
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void Sequencer::setValue(int step)
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{
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QThread *currentThread = QThread::currentThread();
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QThread *thr = d->bar->thread(); // this is the main thread
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// if number of total steps is unknown then increment only by one
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if (nTotalSteps == 0) {
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int elapsed = d->progressTime.elapsed();
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// allow an update every 500 milliseconds only
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if (elapsed > 500) {
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d->progressTime.restart();
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if (thr != currentThread) {
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QMetaObject::invokeMethod(d->bar, "setValue", Qt::/*Blocking*/QueuedConnection,
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QGenericReturnArgument(), Q_ARG(int,d->bar->value()+1));
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}
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else {
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d->bar->setValue(d->bar->value()+1);
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qApp->processEvents();
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}
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}
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}
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else {
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if (thr != currentThread) {
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QMetaObject::invokeMethod(d->bar, "setValue", Qt::/*Blocking*/QueuedConnection,
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QGenericReturnArgument(), Q_ARG(int,step));
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if (d->bar->isVisible())
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showRemainingTime();
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}
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else {
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d->bar->setValue(step);
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if (d->bar->isVisible())
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showRemainingTime();
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d->bar->resetObserveEventFilter();
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qApp->processEvents();
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}
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}
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}
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void Sequencer::showRemainingTime()
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{
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QThread *currentThread = QThread::currentThread();
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QThread *thr = d->bar->thread(); // this is the main thread
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int elapsed = d->measureTime.elapsed();
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int progress = d->bar->value();
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int totalSteps = d->bar->maximum() - d->bar->minimum();
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QString txt = d->text;
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// More than 5 percent complete or more than 5 secs have elapsed.
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if (progress * 20 > totalSteps || elapsed > 5000) {
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int rest = (int) ( (double) totalSteps/progress * elapsed ) - elapsed;
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// more than 1 secs have elapsed and at least 100 ms are remaining
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if (elapsed > 1000 && rest > 100) {
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QTime time( 0,0, 0);
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time = time.addSecs( rest/1000 );
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QString remain = Gui::ProgressBar::tr("Remaining: %1").arg(time.toString());
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QString status = QString::fromAscii("%1\t[%2]").arg(txt).arg(remain);
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if (thr != currentThread) {
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QMetaObject::invokeMethod(getMainWindow()->statusBar(), "showMessage",
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Qt::/*Blocking*/QueuedConnection,
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QGenericReturnArgument(),
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Q_ARG(QString,status));
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}
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else {
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getMainWindow()->statusBar()->showMessage(status);
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}
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}
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}
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}
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void Sequencer::resetData()
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{
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QThread *currentThread = QThread::currentThread();
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QThread *thr = d->bar->thread(); // this is the main thread
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if (thr != currentThread) {
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QMetaObject::invokeMethod(d->bar, "reset", Qt::QueuedConnection);
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QMetaObject::invokeMethod(d->bar, "hide", Qt::QueuedConnection);
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QMetaObject::invokeMethod(getMainWindow()->statusBar(), "showMessage",
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Qt::/*Blocking*/QueuedConnection,
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QGenericReturnArgument(),
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Q_ARG(QString,QString()));
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QMetaObject::invokeMethod(getMainWindow(), "setPaneText",
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Qt::/*Blocking*/QueuedConnection,
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QGenericReturnArgument(),
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Q_ARG(int,1),
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Q_ARG(QString,QString()));
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}
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else {
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d->bar->reset();
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// Note: Under Qt 4.1.4 this forces to run QWindowsStyle::eventFilter() twice
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// handling the same event thus a warning is printed. Possibly, this is a bug
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// in Qt. The message is QEventDispatcherUNIX::unregisterTimer: invalid argument.
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d->bar->hide();
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delete d->waitCursor;
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d->waitCursor = 0;
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d->bar->leaveControlEvents();
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getMainWindow()->setPaneText(1, QString());
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getMainWindow()->statusBar()->showMessage(QString());
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}
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SequencerBase::resetData();
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}
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void Sequencer::abort()
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{
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//resets
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resetData();
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Base::AbortException exc("Aborting...");
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throw exc;
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}
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void Sequencer::setText (const char* pszTxt)
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{
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QThread *currentThread = QThread::currentThread();
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QThread *thr = d->bar->thread(); // this is the main thread
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// print message to the statusbar
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d->text = pszTxt ? QString::fromUtf8(pszTxt) : QLatin1String("");
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if (thr != currentThread) {
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QMetaObject::invokeMethod(getMainWindow()->statusBar(), "showMessage",
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Qt::/*Blocking*/QueuedConnection,
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QGenericReturnArgument(),
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Q_ARG(QString,d->text));
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}
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else {
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getMainWindow()->statusBar()->showMessage(d->text);
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}
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}
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bool Sequencer::isBlocking() const
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{
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return d->guiThread;
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}
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QProgressBar* Sequencer::getProgressBar(QWidget* parent)
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{
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if (!d->bar)
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d->bar = new ProgressBar(this, parent);
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return d->bar;
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}
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// -------------------------------------------------------
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/* TRANSLATOR Gui::ProgressBar */
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ProgressBar::ProgressBar (Sequencer* s, QWidget * parent)
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: QProgressBar(parent), sequencer(s)
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{
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d = new Gui::ProgressBarPrivate;
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d->minimumDuration = 2000; // 2 seconds
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d->delayShowTimer = new QTimer(this);
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d->delayShowTimer->setSingleShot(true);
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connect(d->delayShowTimer, SIGNAL(timeout()), this, SLOT(delayedShow()));
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d->observeEventFilter = 0;
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setFixedWidth(120);
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// write percentage to the center
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setAlignment(Qt::AlignHCenter);
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hide();
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}
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ProgressBar::~ProgressBar ()
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{
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disconnect(d->delayShowTimer, SIGNAL(timeout()), this, SLOT(delayedShow()));
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delete d->delayShowTimer;
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delete d;
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}
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int ProgressBar::minimumDuration() const
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{
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return d->minimumDuration;
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}
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void ProgressBar::setMinimumDuration (int ms)
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{
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if (value() == 0)
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{
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d->delayShowTimer->stop();
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d->delayShowTimer->start(ms);
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}
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d->minimumDuration = ms;
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}
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void ProgressBar::aboutToShow()
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{
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// delay showing the bar
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d->delayShowTimer->start(d->minimumDuration);
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}
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void ProgressBar::delayedShow()
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{
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if (!isVisible() && !sequencer->wasCanceled() && sequencer->isRunning())
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show();
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}
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bool ProgressBar::canAbort() const
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{
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int ret = QMessageBox::question(getMainWindow(),tr("Aborting"),
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tr("Do you really want to abort the operation?"), QMessageBox::Yes,
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QMessageBox::No|QMessageBox::Default);
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return (ret == QMessageBox::Yes) ? true : false;
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}
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void ProgressBar::showEvent(QShowEvent* e)
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{
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QProgressBar::showEvent(e);
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d->delayShowTimer->stop();
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}
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void ProgressBar::hideEvent(QHideEvent* e)
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{
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QProgressBar::hideEvent(e);
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d->delayShowTimer->stop();
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}
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void ProgressBar::resetObserveEventFilter()
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{
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d->observeEventFilter = 0;
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}
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void ProgressBar::enterControlEvents()
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{
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qApp->installEventFilter(this);
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// Make sure that we get the key events, otherwise the Inventor viewer usurps the key events
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// This also disables accelerators.
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grabKeyboard();
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}
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void ProgressBar::leaveControlEvents()
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{
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qApp->removeEventFilter(this);
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// relase the keyboard again
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releaseKeyboard();
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}
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bool ProgressBar::eventFilter(QObject* o, QEvent* e)
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{
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if (sequencer->isRunning() && e != 0) {
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switch ( e->type() )
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{
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// check for ESC
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case QEvent::KeyPress:
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{
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QKeyEvent* ke = (QKeyEvent*)e;
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if (ke->key() == Qt::Key_Escape) {
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// eventFilter() was called from the application 50 times without performing a new step (app could hang)
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if (d->observeEventFilter > 50) {
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// tries to unlock the application if it hangs (propably due to incorrect usage of Base::Sequencer)
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if (ke->modifiers() & (Qt::ControlModifier | Qt::AltModifier)) {
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sequencer->resetData();
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return true;
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}
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}
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// cancel the operation
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sequencer->tryToCancel();
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}
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return true;
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} break;
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// ignore alle these events
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case QEvent::KeyRelease:
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case QEvent::Enter:
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case QEvent::Leave:
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case QEvent::MouseButtonDblClick:
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case QEvent::ContextMenu:
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{
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return true;
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} break;
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// special case if the main window's close button was pressed
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case QEvent::Close:
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{
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// avoid to exit while app is working
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// note: all other widget types are allowed to be closed anyway
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if (o == getMainWindow()) {
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e->ignore();
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return true;
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}
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} break;
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// do a system beep and ignore the event
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case QEvent::MouseButtonPress:
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{
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QApplication::beep();
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return true;
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} break;
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default:
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{
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} break;
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}
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d->observeEventFilter++;
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}
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return QProgressBar::eventFilter(o, e);
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}
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#include "moc_ProgressBar.cpp"
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