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/**********************************************************************
zyGrib: meteorological GRIB file viewer
Copyright (C) 2008-2012 - Jacques Zaninetti - http://www.zygrib.org
This program 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.
This program 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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***********************************************************************/
#include <QImageWriter>
#include <QFileDialog>
#include <QMessageBox>
#include <QAbstractEventDispatcher>
#include "ImageWriter.h"
#include "Util.h"
//==============================================================
ImageWriterDialog::ImageWriterDialog
(QWidget *parent, int W, int H, int quality,
bool resizeAfter,
bool showDateCursor, bool showColorScale,
int Winit, int Hinit)
: DialogBoxColumn (parent, 1,
tr("Image parameters"),
tr("Image parameters"),
2)
{
this->Winit = Winit;
this->Hinit = Hinit;
sbWidth = new QSpinBox (this);
sbWidth->setRange (1, 999999);
sbWidth->setValue (W);
sbHeight = new QSpinBox (this);
sbHeight->setRange (1, 999999);
sbHeight->setValue (H);
sbQuality = new QSpinBox (this);
sbQuality->setRange (0, 100);
sbQuality->setSuffix (" %");
sbQuality->setValue (quality);
cbResizeAfter = new QCheckBox (this);
cbResizeAfter->setChecked (resizeAfter);
cbShowDateCursor = new QCheckBox (this);
cbShowDateCursor->setChecked (showDateCursor);
cbShowColorScale = new QCheckBox (this);
cbShowColorScale->setChecked (showColorScale);
cbAsScreen = new QCheckBox (this);
cbAsScreen->setChecked (W==Winit && H==Hinit);
addLabeledWidget (0, tr("Current size"), cbAsScreen);
addLabeledWidget (0, tr("Width"), sbWidth);
addLabeledWidget (0, tr("Height"), sbHeight);
addLabeledWidget (0, tr("Quality"), sbQuality);
addLabeledWidget (0, tr("Resize after"), cbResizeAfter);
addLabeledWidget (0, tr("Display date cursor"), cbShowDateCursor);
addLabeledWidget (0, tr("Display color scale"), cbShowColorScale);
connect(sbWidth, SIGNAL(valueChanged(int)), this, SLOT(slotUpdateWidgets()));
connect(sbHeight, SIGNAL(valueChanged(int)), this, SLOT(slotUpdateWidgets()));
connect(cbAsScreen, SIGNAL(stateChanged(int)), this, SLOT(slotUpdateWidgets()));
connect(cbResizeAfter, SIGNAL(stateChanged(int)), this, SLOT(slotUpdateWidgets()));
connect(cbShowDateCursor, SIGNAL(stateChanged(int)), this, SLOT(slotUpdateWidgets()));
connect(cbShowColorScale, SIGNAL(stateChanged(int)), this, SLOT(slotUpdateWidgets()));
}
//---------------------------------------------------------
void ImageWriterDialog::slotUpdateWidgets ()
{
if (sender() == cbAsScreen) {
if (cbAsScreen->isChecked()) {
sbWidth->setValue (Winit);
sbHeight->setValue (Hinit);
}
}
else {
cbAsScreen->setChecked (sbWidth->value()==Winit && sbHeight->value()==Hinit);
}
}
//==============================================================
ImageWriter::ImageWriter (QWidget *parent, Terrain *terre)
{
this->parent = parent;
this->terre = terre;
}
//-------------------------------------------------
ImageWriter::~ImageWriter ()
{
}
//-------------------------------------------------
QImage * ImageWriter::createImage (
time_t date, ImageWriterDialog &dial, int Winit, int Hinit)
{
QPixmap *pixmap = NULL;
QImage *image = NULL;
int W = dial.getW ();
int H = dial.getH ();
bool showDateCursor = dial.getShowDateCursor ();
bool showColorScale = dial.getShowColorScale ();
int HDateChooser = showDateCursor ? 16 : 0;
int WColorScale = showColorScale ? 32 : 0;
if (dial.getResizeAfter() && (W!=Winit || H!=Hinit) )
{
QPixmap *pixmap2 = terre->createPixmap (date, Winit, Hinit);
if (pixmap2) {
pixmap = new QPixmap (pixmap2->scaled (
W-WColorScale, H-HDateChooser,
Qt::KeepAspectRatioByExpanding,
Qt::SmoothTransformation));
delete pixmap2;
}
}
else {
pixmap = terre->createPixmap (date, W-WColorScale, H-HDateChooser);
}
if (pixmap) {
image = new QImage (W, H, QImage::Format_RGB32);
if (image) {
QPainter pntimage (image);
pntimage.drawPixmap (0, 0, *pixmap);
if (showDateCursor) {
DateChooser datechooser;
datechooser.setGriddedPlotter (terre->getGriddedPlotter());
datechooser.setMarkToday (false);
datechooser.setDate (date);
datechooser.resize (W, HDateChooser);
datechooser.render (&pntimage, QPoint(0,H-HDateChooser));
}
if (showColorScale) {
ColorScaleGraph colorScale;
colorScale.setColorScale (
terre->getGriddedPlotter(),
terre->getColorMapData ());
colorScale.resize (WColorScale, H-HDateChooser);
colorScale.render (&pntimage, QPoint(W-WColorScale,0));
}
}
delete pixmap;
}
return image;
}
//-------------------------------------------------
void ImageWriter::saveCurrentImage ()
{
saveImage (terre->getCurrentDate());
}
//-------------------------------------------------
void ImageWriter::saveImage (time_t date)
{
int W = Util::getSetting("imageSaveWidth", 640).toInt();
int H = Util::getSetting("imageSaveHeight", 480).toInt();
int Q = Util::getSetting("imageSaveQuality", 90).toInt();
int Winit = terre->getProjection()->getW();
int Hinit = terre->getProjection()->getH();
bool rsz = Util::getSetting("imageSaveResizeAfter", false).toBool();
bool showDateCursor = Util::getSetting("imageShowDateCursor", false).toBool();
bool showColorScale = Util::getSetting("imageShowColorScale", true).toBool();
ImageWriterDialog dial (parent, W,H,Q,
rsz, showDateCursor, showColorScale, Winit,Hinit);
dial.exec ();
if (dial.isAccepted())
{
QImage *image = createImage (date, dial, Winit,Hinit);
if (image)
{
if (! image->isNull())
{
QString filename = Util::getSetting("imageSaveFilename", "").toString();
filename = Util::getSaveFileName (terre,
tr("Save JPEG image"),
filename,
tr("Images (*.jpg *.jpeg)") );
if (filename != "") {
saveSettings (dial, filename);
qApp->setOverrideCursor (Qt::WaitCursor);
if ( ! filename.endsWith(".jpg", Qt::CaseInsensitive)
&& ! filename.endsWith(".jpeg", Qt::CaseInsensitive) )
filename += ".jpg";
image->save (filename, "JPEG", Q);
qApp->restoreOverrideCursor ();
}
}
delete image;
}
}
}
//-------------------------------------------------
void ImageWriter::saveSettings (ImageWriterDialog &dial, QString filename)
{
Util::setSetting("imageSaveWidth", dial.getW());
Util::setSetting("imageSaveHeight", dial.getH());
Util::setSetting("imageSaveQuality", dial.getQ());
Util::setSetting("imageSaveFilename", filename);
Util::setSetting("imageSaveResizeAfter", dial.getResizeAfter());
Util::setSetting("imageShowDateCursor", dial.getShowDateCursor());
Util::setSetting("imageShowColorScale", dial.getShowColorScale());
}
//-------------------------------------------------
void ImageWriter::saveAllImages ()
{
GriddedPlotter *plotter = terre->getGriddedPlotter ();
if (!plotter || !plotter->isReaderOk()) {
return;
}
int W = Util::getSetting("imageSaveWidth", 640).toInt();
int H = Util::getSetting("imageSaveHeight", 480).toInt();
int Q = Util::getSetting("imageSaveQuality", 90).toInt();
int Winit = terre->getProjection()->getW();
int Hinit = terre->getProjection()->getH();
bool rsz = Util::getSetting("imageSaveResizeAfter", false).toBool();
bool showDateCursor = Util::getSetting("imageShowDateCursor", false).toBool();
bool showColorScale = Util::getSetting("imageShowColorScale", true).toBool();
ImageWriterDialog dial (parent, W,H,Q,
rsz, showDateCursor, showColorScale, Winit,Hinit);
dial.exec ();
if (dial.isAccepted())
{
QString filename = Util::getSetting("imageSaveFilename", "").toString();
filename = Util::getSaveFileName (terre,
tr("Save all images (JPEG)"),
filename,
tr("Images (*.jpg *.jpeg)") );
if (filename != "")
{
QRegExp reg ("(.jpeg$|.jpg$)");
reg.setCaseSensitivity(Qt::CaseInsensitive);
QString prefix = filename.replace(reg, "");
reg.setPattern ("(_$|_\\d\\d\\d$)");
prefix = filename.replace(reg, "");
int nb = plotter->getNumberOfDates ();
QString nom1 = createAnimImageFilename (prefix, 1);
QString nom2 = createAnimImageFilename (prefix, nb);
if ( QMessageBox::question (terre,
tr("Save all images"),
tr("This operation will create %1 files :").arg(nb)
+ "\n\n"
+ QString("%1\n...\n%2").arg(nom1).arg(nom2)
+ "\n\n"
+ tr("Warning: existing files will be deleted !")
,
QMessageBox::Ok|QMessageBox::Cancel
)
== QMessageBox::Ok )
{
saveSettings (dial, filename);
qApp->setOverrideCursor (Qt::WaitCursor);
std::set<time_t>::iterator iter;
int num=1;
for (iter=plotter->getListDates()->begin();
iter!=plotter->getListDates()->end(); iter++, num++)
{
qApp->processEvents ();
time_t date = *iter;
QImage * image = createImage (date, dial, Winit,Hinit);
if (image)
{
QString filename = createAnimImageFilename (prefix, num);
image->save (filename, "JPEG", Q);
delete image;
}
}
qApp->restoreOverrideCursor ();
}
}
}
}
//-------------------------------------------------------
QString ImageWriter::createAnimImageFilename (QString prefix, int n)
{
return (prefix+"_%1.jpg").arg(n, 3, 10, QChar('0'));
}
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