diff options
Diffstat (limited to 'src-qt5/desktop-utils/lumina-fm/widgets/SlideshowWidget.cpp')
| -rw-r--r-- | src-qt5/desktop-utils/lumina-fm/widgets/SlideshowWidget.cpp | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/src-qt5/desktop-utils/lumina-fm/widgets/SlideshowWidget.cpp b/src-qt5/desktop-utils/lumina-fm/widgets/SlideshowWidget.cpp new file mode 100644 index 00000000..a9028d2b --- /dev/null +++ b/src-qt5/desktop-utils/lumina-fm/widgets/SlideshowWidget.cpp @@ -0,0 +1,169 @@ +//=========================================== +// Lumina-DE source code +// Copyright (c) 2015, Ken Moore +// Available under the 3-clause BSD license +// See the LICENSE file for full details +//=========================================== +#include "SlideshowWidget.h" +#include "ui_SlideshowWidget.h" + +#include <QImageWriter> +#include <QMessageBox> + +SlideshowWidget::SlideshowWidget(QWidget *parent) : QWidget(parent), ui(new Ui::SlideshowWidget){ + ui->setupUi(this); //load the designer file + zoom = 1; + UpdateIcons(); + UpdateText(); +} + +SlideshowWidget::~SlideshowWidget(){ + +} + +// ================ +// PUBLIC SLOTS +// ================ +void SlideshowWidget::ClearImages(){ + ui->combo_image_name->clear(); +} + +void SlideshowWidget::LoadImages(QList<LFileInfo> list){ + int cmax = ui->combo_image_name->count(); //current number of items + for(int i=0; i<list.length(); i++){ + if(list[i].isImage()){ ui->combo_image_name->addItem(list[i].fileName(), list[i].absoluteFilePath() ); } + } + //Now automatically show the first item from the batch of new ones + if(cmax < ui->combo_image_name->count()){ ui->combo_image_name->setCurrentIndex(cmax); } +} + +void SlideshowWidget::refresh(){ + UpdateImage(); +} + +//Theme change functions +void SlideshowWidget::UpdateIcons(){ + ui->tool_image_goBegin->setIcon( LXDG::findIcon("go-first-view","") ); + ui->tool_image_goEnd->setIcon( LXDG::findIcon("go-last-view","") ); + ui->tool_image_goPrev->setIcon( LXDG::findIcon("go-previous-view","") ); + ui->tool_image_goNext->setIcon( LXDG::findIcon("go-next-view","") ); + ui->tool_image_remove->setIcon( LXDG::findIcon("edit-delete","") ); + ui->tool_image_rotateleft->setIcon( LXDG::findIcon("object-rotate-left","") ); + ui->tool_image_rotateright->setIcon( LXDG::findIcon("object-rotate-right","") ); + ui->tool_image_zoomin->setIcon( LXDG::findIcon("zoom-in","") ); + ui->tool_image_zoomout->setIcon( LXDG::findIcon("zoom-out","") ); +} + +void SlideshowWidget::UpdateText(){ + ui->retranslateUi(this); +} + + +// ================= +// PRIVATE +// ================= +void SlideshowWidget::UpdateImage(){ + QString file = ui->combo_image_name->currentData().toString(); + qDebug() << "Show Image:" << file << "Zoom:" << zoom; + QPixmap pix(file); + QSize sz = ui->scrollArea->contentsRect().size(); + if( sz.width()>pix.size().width() || sz.height()>pix.size().height()){ sz = pix.size(); } //100% size already - apply zoom after this + pix = pix.scaled(sz*zoom, Qt::KeepAspectRatio, Qt::SmoothTransformation); + ui->label_image->setPixmap(pix); + //Now set/load the buttons + ui->tool_image_goBegin->setEnabled(ui->combo_image_name->currentIndex()>0); + ui->tool_image_goPrev->setEnabled(ui->combo_image_name->currentIndex()>0); + ui->tool_image_goEnd->setEnabled(ui->combo_image_name->currentIndex()<(ui->combo_image_name->count()-1)); + ui->tool_image_goNext->setEnabled(ui->combo_image_name->currentIndex()<(ui->combo_image_name->count()-1)); + ui->label_image_index->setText( QString::number(ui->combo_image_name->currentIndex()+1)+"/"+QString::number(ui->combo_image_name->count()) ); + static QList<QByteArray> writeableformats; + if(writeableformats.isEmpty()){ + writeableformats = QImageWriter::supportedImageFormats(); + qDebug() << "Writeable image formats:" << writeableformats; + } + bool canwrite = writeableformats.contains(file.section(".",-1).toLower().toLocal8Bit()); //compare the suffix with the list + bool isUserWritable = QFileInfo(file).isWritable(); + ui->tool_image_remove->setEnabled(isUserWritable); + ui->tool_image_rotateleft->setEnabled(isUserWritable && canwrite); + ui->tool_image_rotateright->setEnabled(isUserWritable && canwrite); + ui->tool_image_zoomin->setEnabled(zoom<2); + ui->tool_image_zoomout->setEnabled(zoom>0.25); +} + + +// ================= +// PRIVATE SLOTS +// ================= +// Picture rotation options +void SlideshowWidget::on_combo_image_name_currentIndexChanged(int index){ + if(index>=0 && !ui->combo_image_name->currentData().toString().isEmpty()){ + zoom = 1; //always reset the zoom level when changing images + UpdateImage(); + } +} + +void SlideshowWidget::on_tool_image_goEnd_clicked(){ + ui->combo_image_name->setCurrentIndex( ui->combo_image_name->count()-1 ); +} + +void SlideshowWidget::on_tool_image_goNext_clicked(){ + ui->combo_image_name->setCurrentIndex( ui->combo_image_name->currentIndex()+1 ); +} + +void SlideshowWidget::on_tool_image_goPrev_clicked(){ + ui->combo_image_name->setCurrentIndex( ui->combo_image_name->currentIndex()-1 ); +} + +void SlideshowWidget::on_tool_image_goBegin_clicked(){ + ui->combo_image_name->setCurrentIndex(0); +} + +// Picture modification options +void SlideshowWidget::on_tool_image_remove_clicked(){ + QString file = ui->combo_image_name->currentData().toString(); + //Verify permanent removal of file/dir + if(QMessageBox::Yes != QMessageBox::question(this, tr("Verify Removal"), tr("WARNING: This will permanently delete the file from the system!")+"\n"+tr("Are you sure you want to continue?")+"\n\n"+file, QMessageBox::Yes | QMessageBox::No, QMessageBox::No) ){ + return; //cancelled + } + if( QFile::remove(file) ){ + int index = ui->combo_image_name->currentIndex(); + ui->combo_image_name->removeItem( index ); + } +} + +void SlideshowWidget::on_tool_image_rotateleft_clicked(){ + //First load the file fresh (not the scaled version in the UI) + QString file = ui->combo_image_name->currentData().toString(); + QPixmap pix(file); + //Now rotate the image 90 degrees counter-clockwise + QTransform trans; + pix = pix.transformed( trans.rotate(-90) , Qt::SmoothTransformation); + //Now save the image back to the same file + pix.save(file); + //Now re-load the image in the UI + UpdateImage(); +} + +void SlideshowWidget::on_tool_image_rotateright_clicked(){ + //First load the file fresh (not the scaled version in the UI) + QString file = ui->combo_image_name->currentData().toString(); + QPixmap pix(file); + //Now rotate the image 90 degrees counter-clockwise + QTransform trans; + pix = pix.transformed( trans.rotate(90) , Qt::SmoothTransformation); + //Now save the image back to the same file + pix.save(file); + //Now re-load the image in the UI + UpdateImage(); +} + +void SlideshowWidget::on_tool_image_zoomin_clicked(){ + zoom+=0.25; //change 25% every time + UpdateImage(); +} + +void SlideshowWidget::on_tool_image_zoomout_clicked(){ + zoom-=0.25; //change 25% every time + UpdateImage(); +} + |