Select Git revision
imageviewer.cpp
Code owners
Assign users and groups as approvers for specific file changes. Learn more.
imageviewer.cpp 21.50 KiB
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "imageviewer.h"
#include <QtWidgets>
#include <cstdlib>
#if defined(QT_PRINTSUPPORT_LIB)
#include <QtPrintSupport/qtprintsupportglobal.h>
#if QT_CONFIG(printdialog)
#include <QPrintDialog>
#endif
#endif
//! [0]
ImageViewer::ImageViewer(QWidget *parent)
: QMainWindow(parent), imageLabel(new QLabel),
scrollArea(new QScrollArea), scaleFactor(1)
{
interactionTool = new InteractionTool();
imageLabel->setBackgroundRole(QPalette::Dark);
imageLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
imageLabel->setScaledContents(true);
scrollArea->setBackgroundRole(QPalette::Dark);
scrollArea->setWidget(imageLabel);
//scrollArea->setVisible(false);
setCentralWidget(scrollArea);
createActions();
//colorButtons = std::vector<QToolButton*>(); //TODO vector zu Qvector ändern
colorVect = QVector<QRgb>();
QPixmap px(20, 20);
QString str2;
newLayerDock = new NewLayerDock(interactionTool);
connect(newLayerDock,&NewLayerDock::update,this,&ImageViewer::updateall);
connect(newLayerDock,QOverload<bool>::of(&NewLayerDock::updateHasLayer),this,&ImageViewer::updateHasLayer);
drawDock = new DrawDock(interactionTool);
connect(drawDock,&DrawDock::updateVisible,this,&ImageViewer::updateVisible);
connect(drawDock,QOverload<para1>::of(&DrawDock::drawShowI),this,&ImageViewer::drawShowI);
connect(drawDock,QOverload<para2>::of(&DrawDock::drawShowII),this,&ImageViewer::drawShowII);
transLationDock = new TranslationDock(interactionTool);
connect(transLationDock,QOverload<toolParameters_t*>::of(&TranslationDock::getParams),this,&ImageViewer::setTranslationParams);
connect(transLationDock,&TranslationDock::update,this,&ImageViewer::updateall);
colorDock = new ColorDock(interactionTool);
connect(colorDock,&ColorDock::updateVisible,this,&ImageViewer::updateVisible);
connect(colorDock,QOverload<QVector<QRgb>>::of(&ColorDock::updateColorVect),this,&ImageViewer::updateColorVector);
addDockWidget(Qt::BottomDockWidgetArea, colorDock->getDockWidget());
layerDock = new LayerDock(interactionTool);
connect(layerDock,&LayerDock::updateLayerDock,this,&ImageViewer::updateLayerDock);
connect(layerDock,&LayerDock::newLayer,this,&ImageViewer::newLayer);
connect(layerDock,&LayerDock::update,this,&ImageViewer::updateWithoutLayer);
connect(layerDock,QOverload<toolParameters_t*>::of(&LayerDock::getParams),this,&ImageViewer::setMergeParams);
addDockWidget(Qt::RightDockWidgetArea, layerDock->getDockWidget());
connect(colorDock,&ColorDock::updateLayers,layerDock,&LayerDock::updateLayers);
connect(drawDock,&DrawDock::updateLayer,layerDock,&LayerDock::updateLayers);
newColorVect = QVector<QRgb>();
colorVect = colorDock->getColorVect();
newColorVect.append(colorVect);
newLayerDock->setColorVect(colorVect);
drawDock->setColorVect(colorVect);
colorDock->setColorVect(colorVect);
//createColorDock();
layerDockW = layerDock->getDockWidget();
//resize(QGuiApplication::primaryScreen()->availableSize() * 3 / 5);
resize(QGuiApplication::primaryScreen()->availableSize() * 4 / 5);
}
bool ImageViewer::loadFile(const QString &fileName)
{
QImageReader reader(fileName);
reader.setAutoTransform(true);
QImage *newImage = new QImage;
*newImage = reader.read();
if (newImage->isNull()) {
QMessageBox::information(this, QGuiApplication::applicationDisplayName(),
tr("Cannot load %1: %2")
.arg(QDir::toNativeSeparators(fileName), reader.errorString()));
return false;
}
//! [2]
param = new toolParameters_t;
param->tool=tools_e::newLayer; param->pic = newImage;
param->colorVect = newColorVect;
interactionTool->useTool(param);
param = nullptr;
newImage = interactionTool->getPicture()->getCurrentLayerAsQ();
//colorVect = interactionTool->getPicture()->getCurrentLayerAsQ()->colorTable();
if (newImage==nullptr){
return false;
}
hasLayer=true;
return true;
}
void ImageViewer::setImage(QImage newImage)//remove Parameter
{
image = newImage;
//updateVisible();
//imageLabel->setPixmap(*pixmap);
imageLabel->setPixmap(QPixmap::fromImage(image));
//! [4]
//scaleFactor = 1.0;
//scrollArea->setVisible(true);
printAct->setEnabled(true);
fitToWindowAct->setEnabled(true);
updateActions();
if (!fitToWindowAct->isChecked())
imageLabel->adjustSize();
}
//! [4]
bool ImageViewer::saveFile(const QString &fileName)
{
QImageWriter writer(fileName);
QPixmap *px = new QPixmap(interactionTool->getPicture()->getMaxSize());
QPainter *painter= new QPainter(px);
for (int i = 0; i < interactionTool->getPicture()->getLayerCount(); i++) {
if (layerDock->isLayerCheckboxChecked(i)){
painter->drawImage(interactionTool->getPicture()->xOffset(i),interactionTool->getPicture()->yOffset(i),*interactionTool->getPicture()->getLayerAsQ(i));
//painter->drawI
}
}
if (!writer.write(px->toImage())) {
QMessageBox::information(this, QGuiApplication::applicationDisplayName(),
tr("Cannot write %1: %2")
.arg(QDir::toNativeSeparators(fileName)), writer.errorString());
return false;
}
const QString message = tr("Wrote \"%1\"").arg(QDir::toNativeSeparators(fileName));
statusBar()->showMessage(message);
return true;
}
//! [1]
static void initializeImageFileDialog(QFileDialog &dialog, QFileDialog::AcceptMode acceptMode)
{
static bool firstDialog = true;
if (firstDialog) {
firstDialog = false;
const QStringList picturesLocations = QStandardPaths::standardLocations(QStandardPaths::PicturesLocation);
dialog.setDirectory(picturesLocations.isEmpty() ? QDir::currentPath() : picturesLocations.last());
}
QStringList mimeTypeFilters;
const QByteArrayList supportedMimeTypes = acceptMode == QFileDialog::AcceptOpen ? QImageReader::supportedMimeTypes() : QImageWriter::supportedMimeTypes();
for (const QByteArray &mimeTypeName : supportedMimeTypes)
mimeTypeFilters.append(mimeTypeName);
mimeTypeFilters.sort();
dialog.setMimeTypeFilters(mimeTypeFilters);
dialog.selectMimeTypeFilter("image/jpeg");
if (acceptMode == QFileDialog::AcceptSave)
dialog.setDefaultSuffix("jpg");
}
void ImageViewer::open()
{
QFileDialog dialog(this, tr("Open File"));
initializeImageFileDialog(dialog, QFileDialog::AcceptOpen);
while (dialog.exec() == QDialog::Accepted && !loadFile(dialog.selectedFiles().first())) {}
//updateColors();
colorDock->updateColors();
//updateLayerCount();
layerDock->updateLayerCount();
updateVisible();
}
//! [1]
void ImageViewer::saveAs()
{
QFileDialog dialog(this, tr("Save File As"));
initializeImageFileDialog(dialog, QFileDialog::AcceptSave);
while (dialog.exec() == QDialog::Accepted && !saveFile(dialog.selectedFiles().first())) {}
}
//! [5]
void ImageViewer::print()
//! [5] //! [6]
{
Q_ASSERT(imageLabel->pixmap());
#if QT_CONFIG(printdialog)
//! [6] //! [7]
QPrintDialog dialog(&printer, this);
//! [7] //! [8]
if (dialog.exec()) {
QPainter painter(&printer);
QRect rect = painter.viewport();
QSize size = imageLabel->pixmap()->size();
size.scale(rect.size(), Qt::KeepAspectRatio);
painter.setViewport(rect.x(), rect.y(), size.width(), size.height());
painter.setWindow(imageLabel->pixmap()->rect());
painter.drawPixmap(0, 0, *imageLabel->pixmap());
}
#endif
}
//! [8]
void ImageViewer::copy()
{
#ifndef QT_NO_CLIPBOARD
QGuiApplication::clipboard()->setImage(image);
#endif // !QT_NO_CLIPBOARD
}
#ifndef QT_NO_CLIPBOARD
static QImage clipboardImage()
{
if (const QMimeData *mimeData = QGuiApplication::clipboard()->mimeData()) {
if (mimeData->hasImage()) {
const QImage image = qvariant_cast<QImage>(mimeData->imageData());
if (!image.isNull())
return image;
} }
return QImage();
}
#endif // !QT_NO_CLIPBOARD
void ImageViewer::paste()
{
#ifndef QT_NO_CLIPBOARD
const QImage newImage = clipboardImage();
if (newImage.isNull()) {
statusBar()->showMessage(tr("No image in clipboard"));
} else {
setImage(newImage);
setWindowFilePath(QString());
const QString message = tr("Obtained image from clipboard, %1x%2, Depth: %3")
.arg(newImage.width()).arg(newImage.height()).arg(newImage.depth());
statusBar()->showMessage(message);
}
#endif // !QT_NO_CLIPBOARD
}
//! [9]
void ImageViewer::zoomIn()
//! [9] //! [10]
{
scaleImage(1.25);
}
void ImageViewer::zoomOut()
{
scaleImage(0.8);
}
//! [10] //! [11]
void ImageViewer::normalSize()
//! [11] //! [12]
{
imageLabel->adjustSize();
scaleFactor = 1.0;
}
//! [12]
//! [13]
void ImageViewer::fitToWindow()
//! [13] //! [14]
{
bool fitToWindow = fitToWindowAct->isChecked();
scrollArea->setWidgetResizable(fitToWindow);
if (!fitToWindow)
normalSize();
updateActions();
}
//! [14]
//! [15]
void ImageViewer::about()
//! [15] //! [16]
{
QMessageBox::about(this, tr("About Image Viewer"),"");
}
//! [16]
//! [17]
void ImageViewer::createActions()
//! [17] //! [18]
{
QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
QAction *openAct = fileMenu->addAction(tr("&Open..."), this, &ImageViewer::open); openAct->setShortcut(QKeySequence::Open);
saveAsAct = fileMenu->addAction(tr("&Save As..."), this, &ImageViewer::saveAs);
saveAsAct->setEnabled(false);
printAct = fileMenu->addAction(tr("&Print..."), this, &ImageViewer::print);
printAct->setShortcut(QKeySequence::Print);
printAct->setEnabled(false);
fileMenu->addSeparator();
QAction *exitAct = fileMenu->addAction(tr("E&xit"), this, &QWidget::close);
exitAct->setShortcut(tr("Ctrl+Q"));
QMenu *editMenu = menuBar()->addMenu(tr("&Edit"));
copyAct = editMenu->addAction(tr("&Copy"), this, &ImageViewer::copy);
copyAct->setShortcut(QKeySequence::Copy);
copyAct->setEnabled(false);
QAction *pasteAct = editMenu->addAction(tr("&Paste"), this, &ImageViewer::paste);
pasteAct->setShortcut(QKeySequence::Paste);
QMenu *viewMenu = menuBar()->addMenu(tr("&View"));
zoomInAct = viewMenu->addAction(tr("Zoom &In (25%)"), this, &ImageViewer::zoomIn);
zoomInAct->setShortcut(QKeySequence::ZoomIn);
zoomInAct->setEnabled(false);
zoomOutAct = viewMenu->addAction(tr("Zoom &Out (25%)"), this, &ImageViewer::zoomOut);
zoomOutAct->setShortcut(QKeySequence::ZoomOut);
zoomOutAct->setEnabled(false);
normalSizeAct = viewMenu->addAction(tr("&Normal Size"), this, &ImageViewer::normalSize);
normalSizeAct->setShortcut(tr("Ctrl+S"));
normalSizeAct->setEnabled(false);
viewMenu->addSeparator();
fitToWindowAct = viewMenu->addAction(tr("&Fit to Window"), this, &ImageViewer::fitToWindow);
fitToWindowAct->setEnabled(false);
fitToWindowAct->setCheckable(true);
fitToWindowAct->setShortcut(tr("Ctrl+F"));
QMenu *toolMenu = menuBar()->addMenu(tr("&Tools"));
QAction *drawTool = toolMenu->addAction(tr("&Draw"), this, &ImageViewer::draw);
QAction *newLayer = toolMenu->addAction(tr("&New Layer"), this, &ImageViewer::newLayer);
QAction *translate = toolMenu->addAction(tr("&Translate"), this, &ImageViewer::translate);
QAction *makeToShaped = toolMenu->addAction(tr("&Make Shaped"), this, &ImageViewer::makeShaped);
QMenu *helpMenu = menuBar()->addMenu(tr("&Help"));
helpMenu->addAction(tr("&About"), this, &ImageViewer::about);
helpMenu->addAction(tr("About &Qt"), &QApplication::aboutQt);
}
//! [18]
//! [21]
void ImageViewer::updateActions()
//! [21] //! [22]
{
saveAsAct->setEnabled(!image.isNull());
copyAct->setEnabled(!image.isNull());
zoomInAct->setEnabled(!fitToWindowAct->isChecked());
zoomOutAct->setEnabled(!fitToWindowAct->isChecked());
normalSizeAct->setEnabled(!fitToWindowAct->isChecked());
}
//! [22]
//! [23]
void ImageViewer::scaleImage(double factor)
//! [23] //! [24]
{
Q_ASSERT(imageLabel->pixmap());
scaleFactor *= factor;
imageLabel->resize(scaleFactor * imageLabel->pixmap()->size());
adjustScrollBar(scrollArea->horizontalScrollBar(), factor);
adjustScrollBar(scrollArea->verticalScrollBar(), factor);
zoomInAct->setEnabled(scaleFactor < 3.0);
zoomOutAct->setEnabled(scaleFactor > 0.333);
}
//! [24]
//! [25]
void ImageViewer::adjustScrollBar(QScrollBar *scrollBar, double factor)
//! [25] //! [26]
{
scrollBar->setValue(int(factor * scrollBar->value()
+ ((factor - 1) * scrollBar->pageStep()/2)));
}
//! [26]
void ImageViewer::draw(){
//createDrawDock();
addDockWidget(Qt::LeftDockWidgetArea, drawDock->createDrawDock());
}
void ImageViewer::mousePressEvent(QMouseEvent *event)
{
if(drawDock->mouseEvent(event,press,scrollArea->x(),scrollArea->horizontalScrollBar()->value(),scrollArea->y(),scrollArea->verticalScrollBar()->value())){
} else
if (event->button() == Qt::LeftButton && interactionTool->getPicture()->hasLayer()){
moveStart=true;
move = event->pos()-QPoint(scrollArea->x()-scrollArea->horizontalScrollBar()->value(),scrollArea->y()-scrollArea->verticalScrollBar()->value());
}
}
void ImageViewer::mouseMoveEvent(QMouseEvent *event)
{
if(drawDock->mouseEvent(event,movee,scrollArea->x(),scrollArea->horizontalScrollBar()->value(),scrollArea->y(),scrollArea->verticalScrollBar()->value())){
} else if (moveStart){
move -= event->pos()-QPoint(scrollArea->x()-scrollArea->horizontalScrollBar()->value(),scrollArea->y()-scrollArea->verticalScrollBar()->value());
param = new toolParameters_t;
param->tool = tools_e::move;
param->offsetX = (-1)*move.x();
param->offsetY = (-1)*move.y();
interactionTool->useTool(param);
param = nullptr;
//setImage(*interactionTool->getPicture()->getCurrentLayerAsQ());
updateVisible();
move = event->pos()-QPoint(scrollArea->x()-scrollArea->horizontalScrollBar()->value(),scrollArea->y()-scrollArea->verticalScrollBar()->value());
}
}
void ImageViewer::mouseReleaseEvent(QMouseEvent *event)
{
if(drawDock->mouseEvent(event,release,scrollArea->x(),scrollArea->horizontalScrollBar()->value(),scrollArea->y(),scrollArea->verticalScrollBar()->value())){
} else if (event->button() == Qt::LeftButton && moveStart){
move -= event->pos()-QPoint(scrollArea->x()-scrollArea->horizontalScrollBar()->value(),scrollArea->y()-scrollArea->verticalScrollBar()->value());
param = new toolParameters_t;
param->tool = tools_e::move;
param->offsetX = (-1)*move.x();
param->offsetY = (-1)*move.y();
interactionTool->useTool(param);
moveStart=false;
param = nullptr; //setImage(*interactionTool->getPicture()->getCurrentLayerAsQ());
updateVisible();
}
}
void ImageViewer::newLayer(){
//param = new toolParameters_t;
//param->tool=tools_e::newLayer;
addDockWidget(Qt::LeftDockWidgetArea, newLayerDock->createNewLayerDock());
//createNewLayerDock();
}
void ImageViewer::translate(){
addDockWidget(Qt::LeftDockWidgetArea, transLationDock->createTranslateDock());
};
void ImageViewer::updateVisible(){
//for (int i = 0; i < interactionTool->getPicture()->getLayerCount(); i++) {
// if (layerCheckboxes[i]->isChecked()){
//TODO: Syncronisieren vom Bild
// }
//}
QString message;
message.sprintf("Dimensions: %dx%d",interactionTool->getPicture()->getCurrentLayerAsQ()->width(),interactionTool->getPicture()->getCurrentLayerAsQ()->height());
statusBar()->showMessage(message);
calculateVisible();
}
void ImageViewer::calculateVisible(){
QPixmap *px = new QPixmap(interactionTool->getPicture()->getMaxSize());
px->fill(QColor(0,0,0,0));
QSize ms = interactionTool->getPicture()->getMinOffset();
int mdx=ms.width()%10;
int mdy=ms.height()%10;
bool c=true;
bool ug=(px->size().height()/10+1-ms.height()/10)%2==1;
QPainter *painter= new QPainter(px);
QBrush *br1 = new QBrush(QColor(100,100,100));
QBrush *br2 = new QBrush(QColor(200,200,200));
//QBrush *br3 = new QBrush(QColor(0,0,0,0));
for (int i = ms.width()/10; i < px->size().width()/10+1;i++){
if(!ug&&i>ms.width()/10){
c=!c;
}
for (int j = ms.height()/10; j < px->size().height()/10+1;j++){
if(c){
painter->fillRect(i*10+mdx,j*10+mdy,10,10,*br1);
c=!c;
} else {
painter->fillRect(i*10+mdx,j*10+mdy,10,10,*br2);
c=!c;
}
}
}
//painter->fillRect(0,0,px->size().width(),ms.height(),*br3);
//painter->fillRect(0,0,ms.width(),px->size().height(),*br3);
for (int i = 0; i < interactionTool->getPicture()->getLayerCount(); i++) {
if (layerDock->isLayerCheckboxChecked(i)){
painter->drawImage(interactionTool->getPicture()->xOffset(i),interactionTool->getPicture()->yOffset(i),*interactionTool->getPicture()->getLayerAsQ(i));
//painter->drawI
}
}
pixmap=px;
setImage(px->toImage());
}
void ImageViewer::makeShaped(){
if(hasLayer){
interactionTool->getPicture()->makeCurrentLayerShaped();
//updateColors();
colorDock->updateColors();
}}
bool ImageViewer::getHasLayer(){
return hasLayer;
}
QVector<QRgb> ImageViewer::getColorVect(){
return colorVect;
}
void ImageViewer::setTranslationParams(toolParameters_t *param){
param->colorVect = colorVect;
transLationDock->doTranslationII(param);
}
void ImageViewer::updateall(){
//updateLayerCount();
layerDock->updateLayerCount();
//updateColors();
colorDock->updateColors();
//setImage(*interactionTool.getPicture()->getCurrentLayerAsQ());
updateVisible();
}
void ImageViewer::updateHasLayer(bool b){
hasLayer = b;
}
void ImageViewer::drawShowI(para1 p){
QPixmap *px = new QPixmap(*imageLabel->pixmap());
QPainter *painter= new QPainter(px);
QPen *pen = new QPen(QColor(colorVect[p.i]));
pen->setWidth(p.w);
painter->setPen(*pen);
painter->drawLine(p.q, p.p);
imageLabel->setPixmap(*px);
}
void ImageViewer::drawShowII(para2 p){
QPixmap *px = new QPixmap(*imageLabel->pixmap());
QPainter *painter= new QPainter(px);
QBrush *pen = new QBrush(QColor(colorVect[p.i]));
painter->setBrush(*pen);
QPainterPath path;
path.addPolygon(p.p);
painter->fillPath(path,*pen);
imageLabel->setPixmap(*px);
}
void ImageViewer::updateLayerDock(){
layerDockW->close();
layerDockW=layerDock->getDockWidget();
addDockWidget(Qt::RightDockWidgetArea, layerDockW);
}
void ImageViewer::setMergeParams(toolParameters_t *param){
param->colorVect = colorVect;
layerDock->doMergeII(param);
}
void ImageViewer::updateWithoutLayer(){
//updateColors();
colorDock->updateColors();
//setImage(*interactionTool.getPicture()->getCurrentLayerAsQ());
updateVisible();
}
void ImageViewer::updateColorVector(QVector<QRgb> colorVect){
this->colorVect = colorVect;
newLayerDock->setColorVect(colorVect);
drawDock->setColorVect(colorVect);
}