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//===========================================
// 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
UpdateIcons();
UpdateText();
}
SlideshowWidget::~SlideshowWidget(){
}
// ================
// PUBLIC SLOTS
// ================
void SlideshowWidget::LoadImages(QList<LFileInfo> list){
ui->combo_image_name->clear();
for(int i=0; i<list.length(); i++){
if(list[i].isImage()){ ui->combo_image_name->addItem(list[i].fileName(), list[i].absoluteFilePath() ); }
}
}
//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","") );
}
void SlideshowWidget::UpdateText(){
ui->retranslateUi(this);
}
// =================
// PRIVATE
// =================
void SlideshowWidget::UpdateImage(){
if( !ui->label_image->isVisible() ){ return; } //don't update if not visible - can cause strange resizing issues
QString file = ui->combo_image_name->currentData().toString();
/*if(!file.endsWith("/")){ file.append("/"); }
file.append(ui->combo_image_name->currentText());*/
//qDebug() << "Show Image:" << file;
QPixmap pix(file);
if(pix.size().width() > ui->label_image->contentsRect().width() || pix.size().height() > ui->label_image->contentsRect().height()){
pix = pix.scaled(ui->label_image->contentsRect().size(), 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);
}
// =================
// PRIVATE SLOTS
// =================
// Picture rotation options
void SlideshowWidget::on_combo_image_name_indexChanged(int index){
if(index>=0 && !ui->combo_image_name->currentData().toString().isEmpty()){
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();
}
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