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LimeReport/limereport/lrpreviewreportwindow.cpp
Andy Maloney 94db98d596 Optionally monitor changes to files loaded with ReportEngine::loadFromFile() 
When using the designer as a stand alone application and the renderer/preview in the
user application, the preview window would have to be closed and opened again every
time a change was made to the report.

This change adds an optional QFileSystemWatcher to monitor changes to the report file
and automatically refreshes the preview in the application when it is saved.

It may be turned on using the new parameter to ReportEngine::loadFromFile().

If the preview window is open in the application and the file name changes or the file is
removed, inform the user and close the preview window.
2017-04-19 22:43:48 -04:00

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/***************************************************************************
* This file is part of the Lime Report project *
* Copyright (C) 2015 by Alexander Arin *
* arin_a@bk.ru *
* *
** GNU General Public License Usage **
* *
* This library is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
** GNU Lesser General Public License **
* *
* This library 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. *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library. *
* If not, see <http://www.gnu.org/licenses/>. *
* *
* This library 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 General Public License for more details. *
****************************************************************************/
#include "lrpreviewreportwindow.h"
#include "ui_lrpreviewreportwindow.h"
#include "serializators/lrxmlreader.h"
#include "serializators/lrxmlwriter.h"
#include "lrreportengine_p.h"
#include "lrpreviewreportwidget.h"
#include "lrpreviewreportwidget_p.h"
#include <QPrinter>
#include <QPrintDialog>
#include <QFileDialog>
#include <QScrollBar>
#include <QDesktopWidget>
namespace LimeReport{
PreviewReportWindow::PreviewReportWindow(ReportEnginePrivate *report,QWidget *parent, QSettings *settings, Qt::WindowFlags flags) :
QMainWindow(parent,flags),
ui(new Ui::PreviewReportWindow), m_settings(settings), m_ownedSettings(false)
{
ui->setupUi(this);
setWindowTitle("Lime Report Preview");
m_pagesNavigator = new QSpinBox(this);
m_pagesNavigator->setMaximum(10000000);
m_pagesNavigator->setPrefix(tr("Page: "));
m_pagesNavigator->setMinimumWidth(120);
ui->toolBar->insertWidget(ui->actionNextPage,m_pagesNavigator);
ui->actionShowMessages->setVisible(false);
connect(m_pagesNavigator,SIGNAL(valueChanged(int)),this,SLOT(slotPageNavigatorChanged(int)));
m_previewReportWidget = new PreviewReportWidget(report,this);
setCentralWidget(m_previewReportWidget);
layout()->setContentsMargins(1,1,1,1);
connect(m_previewReportWidget,SIGNAL(pageChanged(int)), this,SLOT(slotPageChanged(int)) );
connect(m_previewReportWidget->d_ptr->m_previewPage,SIGNAL(selectionChanged()),this,SLOT(slotSelectionChanged()));
connect(m_pagesNavigator,SIGNAL(valueChanged(int)),this,SLOT(slotPageNavigatorChanged(int)));
m_fontEditor = new FontEditorWidget(m_previewReportWidget->d_ptr->m_previewPage,tr("Font"),this);
m_fontEditor->setObjectName("fontTools");
m_fontEditor->setIconSize(ui->toolBar->iconSize());
m_textAlignmentEditor = new TextAlignmentEditorWidget(m_previewReportWidget->d_ptr->m_previewPage,tr("Text align"),this);
m_textAlignmentEditor->setObjectName("textAlignmentTools");
m_textAlignmentEditor->setIconSize(ui->toolBar->iconSize());
addToolBar(Qt::TopToolBarArea,m_fontEditor);
addToolBar(Qt::TopToolBarArea,m_textAlignmentEditor);
m_scalePercent = new QComboBox(this);
m_scalePercent->setEditable(true);
ui->toolBar->insertWidget(ui->actionZoomOut, m_scalePercent);
initPercentCombobox();
// connect(ui->graphicsView->verticalScrollBar(),SIGNAL(valueChanged(int)), this, SLOT(slotSliderMoved(int)));
connect(ui->actionShowMessages, SIGNAL(triggered()), this, SLOT(slotShowErrors()));
connect(m_previewReportWidget, SIGNAL(scalePercentChanged(int)), this, SLOT(slotScalePercentChanged(int)));
connect(m_scalePercent, SIGNAL(currentIndexChanged(QString)), this, SLOT(scaleComboboxChanged(QString)));
restoreSetting();
selectStateIcon();
}
void PreviewReportWindow::writeSetting()
{
settings()->beginGroup("PreviewWindow");
settings()->setValue("Geometry",saveGeometry());
settings()->setValue("State",saveState());
settings()->endGroup();
}
void PreviewReportWindow::restoreSetting()
{
settings()->beginGroup("PreviewWindow");
QVariant v = settings()->value("Geometry");
if (v.isValid()){
restoreGeometry(v.toByteArray());
} else {
QDesktopWidget *desktop = QApplication::desktop();
int screenWidth = desktop->screenGeometry().width();
int screenHeight = desktop->screenGeometry().height();
int x = screenWidth*0.1;
int y = screenHeight*0.1;
resize(screenWidth*0.8, screenHeight*0.8);
move(x, y);
}
v = settings()->value("State");
if (v.isValid()){
restoreState(v.toByteArray());
}
settings()->endGroup();
}
PreviewReportWindow::~PreviewReportWindow()
{
if (m_ownedSettings)
delete m_settings;
//delete m_previewPage;
delete ui;
}
void PreviewReportWindow::initPreview(int pagesCount)
{
m_pagesNavigator->setSuffix(tr(" of %1").arg(pagesCount));
m_pagesNavigator->setMinimum(1);
m_pagesNavigator->setMaximum(pagesCount);
m_pagesNavigator->setValue(1);
}
void PreviewReportWindow::reloadPreview()
{
m_previewReportWidget->refreshPages();
}
void PreviewReportWindow::setSettings(QSettings* value)
{
if (m_ownedSettings)
delete m_settings;
m_settings=value;
m_ownedSettings=false;
restoreSetting();
}
void PreviewReportWindow::setErrorMessages(const QStringList &value){
ui->actionShowMessages->setVisible(true);
m_previewReportWidget->setErrorMessages(value);
}
void PreviewReportWindow::setToolBarVisible(bool value)
{
ui->toolBar->setHidden(value);
selectStateIcon();
}
void PreviewReportWindow::setStatusBarVisible(bool value)
{
ui->statusbar->setVisible(value);
}
void PreviewReportWindow::setMenuVisible(bool value)
{
ui->menubar->setVisible(value);
}
void PreviewReportWindow::setHideResultEditButton(bool value)
{
ui->actionEdit_Mode->setVisible(value);
}
QSettings*PreviewReportWindow::settings()
{
if (m_settings){
return m_settings;
} else {
m_settings = new QSettings("LimeReport",QApplication::applicationName());
m_ownedSettings = true;
return m_settings;
}
}
void PreviewReportWindow::setReportReader(ItemsReaderIntf::Ptr /*reader*/)
{
// m_reader=reader;
// if (!reader.isNull()){
// if (reader->first()) reader->readItem(m_previewPage->pageItem());
// int pagesCount = reader->firstLevelItemsCount();
// m_previewPage->pageItem()->setItemMode(PreviewMode);
// initPreview(pagesCount);
// }
}
void PreviewReportWindow::setPages(ReportPages pages)
{
m_previewReportWidget->d_ptr->setPages(pages);
if (!pages.isEmpty()){
initPreview(pages.count());
}
}
void PreviewReportWindow::exec()
{
bool deleteOnClose = testAttribute(Qt::WA_DeleteOnClose);
setAttribute(Qt::WA_DeleteOnClose,false);
setAttribute(Qt::WA_ShowModal,true);
show();
m_eventLoop.exec();
if (deleteOnClose) delete this;
}
void PreviewReportWindow::closeEvent(QCloseEvent *)
{
#ifdef Q_OS_WIN
writeSetting();
#endif
#ifdef Q_OS_MAC
writeSetting();
#endif
m_eventLoop.exit();
}
void PreviewReportWindow::resizeEvent(QResizeEvent* e)
{
#ifdef Q_OS_UNIX
if (e->oldSize()!=e->size()){
writeSetting();
}
#else
Q_UNUSED(e)
#endif
}
void PreviewReportWindow::moveEvent(QMoveEvent* e)
{
#ifdef Q_OS_UNIX
if (e->oldPos()!=e->pos()){
writeSetting();
}
#else
Q_UNUSED(e)
#endif
}
void PreviewReportWindow::showEvent(QShowEvent *)
{
m_fontEditor->setVisible(ui->actionEdit_Mode->isChecked());
m_textAlignmentEditor->setVisible(ui->actionEdit_Mode->isChecked());
}
void PreviewReportWindow::selectStateIcon()
{
if (ui->toolBar->isHidden()){
ui->actionShow_Toolbar->setIcon(QIcon(":/report/images/not_checked.png"));
} else {
ui->actionShow_Toolbar->setIcon(QIcon(":/report/images/checked.png"));
}
}
void PreviewReportWindow::slotPrint()
{
m_previewReportWidget->print();
}
void PreviewReportWindow::slotPriorPage()
{
m_previewReportWidget->priorPage();
}
void PreviewReportWindow::slotNextPage()
{
m_previewReportWidget->nextPage();
}
void PreviewReportWindow::slotZoomIn()
{
m_previewReportWidget->zoomIn();
}
void PreviewReportWindow::slotZoomOut()
{
m_previewReportWidget->zoomOut();
}
void PreviewReportWindow::slotPageNavigatorChanged(int value)
{
m_previewReportWidget->pageNavigatorChanged(value);
}
void PreviewReportWindow::slotShowErrors()
{
m_previewReportWidget->setErrorsMesagesVisible(ui->actionShowMessages->isChecked());
}
void PreviewReportWindow::on_actionEdit_Mode_triggered(bool checked)
{
m_previewReportWidget->d_ptr->m_previewPage->setItemMode((checked)?ItemModes(DesignMode):PreviewMode);
m_textAlignmentEditor->setVisible(checked);
m_fontEditor->setVisible(checked);
//m_reportPages.at(m_currentPage)->setItemMode((checked)?DesignMode:PreviewMode);
}
void PreviewReportWindow::slotSelectionChanged()
{
QGraphicsScene* page=dynamic_cast<QGraphicsScene*>(sender());
if (page){
if (page->selectedItems().count()==1){
BaseDesignIntf* item = dynamic_cast<BaseDesignIntf*>(page->selectedItems().at(0));
if (item) {
m_fontEditor->setItem(item);
m_textAlignmentEditor->setItem(item);
}
}
}
}
ItemsReaderIntf *PreviewReportWindow::reader()
{
return m_reader.data();
}
void PreviewReportWindow::initPercentCombobox()
{
for (int i = 10; i<310; i+=10){
m_scalePercent->addItem(QString("%1%").arg(i));
}
m_scalePercent->setCurrentIndex(4);
}
void PreviewReportWindow::on_actionSaveToFile_triggered()
{
m_previewReportWidget->saveToFile();
}
void PreviewReportWindow::slotFirstPage()
{
m_previewReportWidget->firstPage();
}
void PreviewReportWindow::slotLastPage()
{
m_previewReportWidget->lastPage();
}
void PreviewReportWindow::slotPrintToPDF()
{
m_previewReportWidget->printToPDF();
}
void PreviewReportWindow::slotPageChanged(int pageIndex)
{
m_pagesNavigator->setValue(pageIndex);
}
void PreviewReportWindow::on_actionFit_page_width_triggered()
{
m_previewReportWidget->fitWidth();
}
void PreviewReportWindow::on_actionFit_page_triggered()
{
m_previewReportWidget->fitPage();
}
void PreviewReportWindow::on_actionOne_to_one_triggered()
{
m_previewReportWidget->setScalePercent(100);
}
void PreviewReportWindow::scaleComboboxChanged(QString text)
{
m_previewReportWidget->setScalePercent(text.remove(text.count()-1,1).toInt());
}
void PreviewReportWindow::slotScalePercentChanged(int percent)
{
m_scalePercent->setEditText(QString("%1%").arg(percent));
}
void PreviewReportWindow::on_actionShowMessages_toggled(bool value)
{
m_previewReportWidget->setErrorsMesagesVisible(value);
}
void PreviewReportWindow::on_actionShow_Toolbar_triggered()
{
setToolBarVisible(!ui->toolBar->isHidden());
writeSetting();
}
}// namespace LimeReport
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