Hochschulprojekte
/
CG2_Tasks
0
0
Fork 0
Code Issues Pull Requests Activity

[TASK] Fix indentation.

This commit is contained in:
Jan Philipp Timme 2015-10-23 10:40:05 +02:00
parent 305df52433
commit 18807593c4
3 changed files with 318 additions and 372 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
imageviewer-main-qt4.cpp
View File

@ -38,14 +38,13 @@
**
****************************************************************************/
#include <QApplication>
#include <QApplication>
#include "imageviewer-qt4.h"
#include "imageviewer-qt4.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
ImageViewer imageViewer;
imageViewer.show();
return app.exec();
}
int main(int argc, char *argv[]) {
QApplication app(argc, argv);
ImageViewer imageViewer;
imageViewer.show();
return app.exec();
}

530
imageviewer-qt4.cpp
View File

@ -38,26 +38,20 @@
**
****************************************************************************/
#include "imageviewer-qt4.h"
#include "imageviewer-qt4.h"
ImageViewer::ImageViewer()
{
image=NULL;
startLogging();
generateMainGui();
renewLogging();
generateControlPanels();
createActions();
createMenus();
resize(1600, 600);
ImageViewer::ImageViewer() {
image=NULL;
startLogging();
generateMainGui();
renewLogging();
generateControlPanels();
createActions();
createMenus();
resize(1600, 600);
}
void ImageViewer::drawBlackLine()
{
void ImageViewer::drawBlackLine() {
if(image!=NULL) {
for(int i=0;i<std::min(image->width(),image->height());i++) {
image->setPixel(i,i,0);
@ -74,7 +68,7 @@ void ImageViewer::drawDiagonalCross() {
int width = image->width();
int height = image->height();
for(int y=0; y<image->height(); y++) {
image->setPixel((1.0*y/height)*width,y,color); //holy shit, ez gg!
image->setPixel((1.0*y/height)*width,y,color);
}
}
updateImageDisplay();
@ -82,7 +76,6 @@ void ImageViewer::drawDiagonalCross() {
renewLogging();
}
//Proxy-Method to actual algorithm
void ImageViewer::drawRainbowCross() {
drawRainbowCross(0);
@ -98,8 +91,8 @@ void ImageViewer::drawRainbowCross(int initialHue=0) {
for(int i=0;i<std::min(image->width(),image->height());i++) {
int color = myColor.rgba();
for(int r=0; r<range; r++) {
image->setPixel(i+r,i,color);
image->setPixel((image_width-i)-r,i,color);
image->setPixel(i+r,i,color);
image->setPixel((image_width-i)-r,i,color);
}
h++;
if(h > 359) h = 0;
@ -123,73 +116,71 @@ void ImageViewer::acidTrippin() {
/****************************************************************************************
*
* mit dieser Methode können sie sich pro Aufgabe ein Tab anlegen, in der die Ein-
* Mit dieser Methode können sie sich pro Aufgabe ein Tab anlegen, in der die Ein-
* stellungen per Slider, Button, Checkbox etc. gemacht werden und die zu implemen-
* tierenden Algorithmen gestatet werden.
* tierenden Algorithmen gestattet werden.
*
*****************************************************************************************/
void ImageViewer::generateControlPanels()
{
// first tab
void ImageViewer::generateControlPanels() {
// first tab
m_option_panel1 = new QWidget();
m_option_layout1 = new QVBoxLayout();
m_option_panel1->setLayout(m_option_layout1);
m_option_panel1 = new QWidget();
m_option_layout1 = new QVBoxLayout();
m_option_panel1->setLayout(m_option_layout1);
button1 = new QPushButton();
button1->setText("Draw a black line");
button1 = new QPushButton();
button1->setText("Draw a black line");
button2 = new QPushButton();
button2->setText("Draw a rainbow cross");
button2 = new QPushButton();
button2->setText("Draw a rainbow cross");
button3 = new QPushButton();
button3->setText("Start the neverending acid trip!");
button3 = new QPushButton();
button3->setText("Start the neverending acid trip!");
button4 = new QPushButton();
button4->setText("Draw a diagonal cross");
button4 = new QPushButton();
button4->setText("Draw a diagonal cross");
lineSlider = new QSlider(Qt::Horizontal);
lineSlider->setMinimum(1);
lineSlider->setMaximum(150);
lineSlider->setValue(3);
lineSlider = new QSlider(Qt::Horizontal);
lineSlider->setMinimum(1);
lineSlider->setMaximum(150);
lineSlider->setValue(3);
QObject::connect(button1, SIGNAL (clicked()), this, SLOT (drawBlackLine()));
QObject::connect(button2, SIGNAL (clicked()), this, SLOT (drawRainbowCross()));
QObject::connect(button3, SIGNAL (clicked()), this, SLOT (acidTrippin()));
QObject::connect(button4, SIGNAL (clicked()), this, SLOT (drawDiagonalCross()));
//QObject::connect(lineSlider, SIGNAL (valueChanged(int)), this, SLOT (drawRainbowCross()));
QObject::connect(button1, SIGNAL (clicked()), this, SLOT (drawBlackLine()));
QObject::connect(button2, SIGNAL (clicked()), this, SLOT (drawRainbowCross()));
QObject::connect(button3, SIGNAL (clicked()), this, SLOT (acidTrippin()));
QObject::connect(button4, SIGNAL (clicked()), this, SLOT (drawDiagonalCross()));
//QObject::connect(lineSlider, SIGNAL (valueChanged(int)), this, SLOT (drawRainbowCross()));
m_option_layout1->addWidget(new QLabel("Let's draw something!"));
m_option_layout1->addWidget(button1);
m_option_layout1->addWidget(button2);
m_option_layout1->addWidget(button3);
m_option_layout1->addWidget(button4);
m_option_layout1->addWidget(new QLabel("This will not stop unless process is killed."));
m_option_layout1->addWidget(lineSlider);
m_option_layout1->addWidget(new QLabel("Sets the width of the cross."));
m_option_layout1->addWidget(new QLabel("Let's draw something!"));
m_option_layout1->addWidget(button1);
m_option_layout1->addWidget(button2);
m_option_layout1->addWidget(button3);
m_option_layout1->addWidget(button4);
m_option_layout1->addWidget(new QLabel("This will not stop unless process is killed."));
m_option_layout1->addWidget(lineSlider);
m_option_layout1->addWidget(new QLabel("Sets the width of the cross."));
tabWidget->addTab(m_option_panel1,"Task #1");
tabWidget->addTab(m_option_panel1,"Task #1");
// another tab
m_option_panel2 = new QWidget();
m_option_layout2 = new QVBoxLayout();
m_option_panel2->setLayout(m_option_layout2);
// another tab
m_option_panel2 = new QWidget();
m_option_layout2 = new QVBoxLayout();
m_option_panel2->setLayout(m_option_layout2);
spinbox1 = new QSpinBox(tabWidget);
spinbox1 = new QSpinBox(tabWidget);
m_option_layout2->addWidget(new QLabel("Here we put some more controls later."));
m_option_layout2->addWidget(spinbox1);
m_option_layout2->addWidget(new QLabel("Here we put some more controls later."));
m_option_layout2->addWidget(spinbox1);
tabWidget->addTab(m_option_panel2,"Task #2");
tabWidget->show();
tabWidget->addTab(m_option_panel2,"Task #2");
tabWidget->show();
// Hinweis: Es bietet sich an pro Aufgabe jeweils einen solchen Tab zu erstellen
// Hinweis: Es bietet sich an pro Aufgabe jeweils einen solchen Tab zu erstellen
}
/****************************************************************************************
*
* ab hier kommen technische Details, die nicht notwenig für das Verständnis und die
* Ab hier kommen technische Details, die nicht notwenig für das Verständnis und die
* Bearbeitung sind.
*
*
@ -197,275 +188,242 @@ void ImageViewer::generateControlPanels()
void ImageViewer::startLogging()
{
//LogFile
logFile.open("log.txt", std::ios::out);
logFile << "Logging: \n" << std::endl;
//LogFile
logFile.open("log.txt", std::ios::out);
logFile << "Logging: \n" << std::endl;
}
void ImageViewer::renewLogging()
{
QFile file("log.txt"); // Create a file handle for the file named
QString line;
file.open(QIODevice::ReadOnly); // Open the file
QFile file("log.txt"); // Create a file handle for the file named
QString line;
file.open(QIODevice::ReadOnly); // Open the file
QTextStream stream( &file ); // Set the stream to read from myFile
logBrowser->clear();
while(!stream.atEnd()){
line = stream.readLine(); // this reads a line (QString) from the file
logBrowser->append(line);
}
QTextStream stream(&file); // Set the stream to read from myFile
logBrowser->clear();
while(!stream.atEnd()) {
line = stream.readLine(); // this reads a line (QString) from the file
logBrowser->append(line);
}
}
void ImageViewer::updateImageDisplay()
{
imageLabel->setPixmap(QPixmap::fromImage(*image));
void ImageViewer::updateImageDisplay() {
imageLabel->setPixmap(QPixmap::fromImage(*image));
}
void ImageViewer::generateMainGui()
{
/* Tab widget */
tabWidget = new QTabWidget(this);
tabWidget->setObjectName("tabWidget");
void ImageViewer::generateMainGui() {
/* Tab widget */
tabWidget = new QTabWidget(this);
tabWidget->setObjectName("tabWidget");
/* Center widget */
centralwidget = new QWidget(this);
centralwidget->setObjectName("centralwidget");
//centralwidget->setFixedSize(200,200);
//setCentralWidget(centralwidget);
imageLabel = new QLabel;
imageLabel->setBackgroundRole(QPalette::Base);
imageLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
imageLabel->setScaledContents(true);
/* Center widget */
centralwidget = new QWidget(this);
centralwidget->setObjectName("centralwidget");
//centralwidget->setFixedSize(200,200);
//setCentralWidget(centralwidget);
/* Center widget */
scrollArea = new QScrollArea;
scrollArea->setBackgroundRole(QPalette::Dark);
scrollArea->setWidget(imageLabel);
setCentralWidget(scrollArea);
imageLabel = new QLabel;
imageLabel->setBackgroundRole(QPalette::Base);
imageLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
imageLabel->setScaledContents(true);
/* HBox layout */
QGridLayout* gLayout = new QGridLayout(centralwidget);
gLayout->setObjectName("hboxLayout");
gLayout->addWidget(new QLabel(),1,1);
gLayout->setVerticalSpacing(50);
gLayout->addWidget(tabWidget,2,1);
gLayout->addWidget(scrollArea,2,2);
/* Center widget */
scrollArea = new QScrollArea;
scrollArea->setBackgroundRole(QPalette::Dark);
scrollArea->setWidget(imageLabel);
setCentralWidget(scrollArea);
/* HBox layout */
QGridLayout* gLayout = new QGridLayout(centralwidget);
gLayout->setObjectName("hboxLayout");
gLayout->addWidget(new QLabel(),1,1);
gLayout->setVerticalSpacing(50);
gLayout->addWidget(tabWidget,2,1);
gLayout->addWidget(scrollArea,2,2);
logBrowser= new QTextEdit(this);
logBrowser->setMinimumHeight(100);
logBrowser->setMaximumHeight(200);
logBrowser->setMinimumWidth(width());
logBrowser->setMaximumWidth(width());
gLayout->addWidget(logBrowser,3,1,1,2);
gLayout->setVerticalSpacing(50);
logBrowser= new QTextEdit(this);
logBrowser->setMinimumHeight(100);
logBrowser->setMaximumHeight(200);
logBrowser->setMinimumWidth(width());
logBrowser->setMaximumWidth(width());
gLayout->addWidget(logBrowser,3,1,1,2);
gLayout->setVerticalSpacing(50);
}
void ImageViewer::print()
{
Q_ASSERT(imageLabel->pixmap());
#if !defined(QT_NO_PRINTER) && !defined(QT_NO_PRINTDIALOG)
QPrintDialog dialog(&printer, this);
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());
void ImageViewer::print() {
Q_ASSERT(imageLabel->pixmap());
#if !defined(QT_NO_PRINTER) && !defined(QT_NO_PRINTDIALOG)
QPrintDialog dialog(&printer, this);
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
}
void ImageViewer::open() {
if(image != NULL) {
delete image;
image = NULL;
}
QString fileName = QFileDialog::getOpenFileName(this, tr("Open File"), QDir::currentPath());
if(!fileName.isEmpty()) {
image = new QImage(fileName);
if(image->isNull()) {
QMessageBox::information(this, tr("Image Viewer"), tr("Cannot load %1.").arg(fileName));
return;
}
#endif
}
void ImageViewer::open()
{
if(image!=NULL)
{
delete image;
image=NULL;
}
QString fileName = QFileDialog::getOpenFileName(this,
tr("Open File"), QDir::currentPath());
if (!fileName.isEmpty()) {
image = new QImage(fileName);
if (image->isNull()) {
QMessageBox::information(this, tr("Image Viewer"),
tr("Cannot load %1.").arg(fileName));
return;
}
scaleFactor = 1.0;
updateImageDisplay();
printAct->setEnabled(true);
fitToWindowAct->setEnabled(true);
updateActions();
if (!fitToWindowAct->isChecked())
imageLabel->adjustSize();
if(!fitToWindowAct->isChecked()) imageLabel->adjustSize();
setWindowFilePath(fileName);
logFile << "geladen: " << fileName.toStdString().c_str() << std::endl;
renewLogging();
}
}
}
void ImageViewer::resizeEvent(QResizeEvent * event)
{
QMainWindow::resizeEvent(event);
centralwidget->setMinimumWidth(width());
centralwidget->setMinimumHeight(height());
centralwidget->setMaximumWidth(width());
centralwidget->setMaximumHeight(height());
logBrowser->setMinimumWidth(width()-40);
logBrowser->setMaximumWidth(width()-40);
void ImageViewer::resizeEvent(QResizeEvent* event) {
QMainWindow::resizeEvent(event);
centralwidget->setMinimumWidth(width());
centralwidget->setMinimumHeight(height());
centralwidget->setMaximumWidth(width());
centralwidget->setMaximumHeight(height());
logBrowser->setMinimumWidth(width()-40);
logBrowser->setMaximumWidth(width()-40);
}
void ImageViewer::zoomIn()
{
scaleImage(1.25);
}
void ImageViewer::zoomIn() {
scaleImage(1.25);
}
void ImageViewer::zoomOut()
{
scaleImage(0.8);
}
void ImageViewer::zoomOut() {
scaleImage(0.8);
}
void ImageViewer::normalSize()
{
imageLabel->adjustSize();
scaleFactor = 1.0;
}
void ImageViewer::normalSize() {
imageLabel->adjustSize();
scaleFactor = 1.0;
}
void ImageViewer::fitToWindow()
{
bool fitToWindow = fitToWindowAct->isChecked();
scrollArea->setWidgetResizable(fitToWindow);
if (!fitToWindow) {
normalSize();
}
updateActions();
}
void ImageViewer::fitToWindow() {
bool fitToWindow = fitToWindowAct->isChecked();
scrollArea->setWidgetResizable(fitToWindow);
if(!fitToWindow) {
normalSize();
}
updateActions();
}
void ImageViewer::about()
{
QMessageBox::about(this, tr("About Image Viewer"),
tr("<p>The <b>Image Viewer</b> example shows how to combine QLabel "
"and QScrollArea to display an image. QLabel is typically used "
"for displaying a text, but it can also display an image. "
"QScrollArea provides a scrolling view around another widget. "
"If the child widget exceeds the size of the frame, QScrollArea "
"automatically provides scroll bars. </p><p>The example "
"demonstrates how QLabel's ability to scale its contents "
"(QLabel::scaledContents), and QScrollArea's ability to "
"automatically resize its contents "
"(QScrollArea::widgetResizable), can be used to implement "
"zooming and scaling features. </p><p>In addition the example "
"shows how to use QPainter to print an image.</p>"));
}
void ImageViewer::about() {
QMessageBox::about(this, tr("About Image Viewer"),
tr("<p>The <b>Image Viewer</b> example shows how to combine QLabel "
"and QScrollArea to display an image. QLabel is typically used "
"for displaying a text, but it can also display an image. "
"QScrollArea provides a scrolling view around another widget. "
"If the child widget exceeds the size of the frame, QScrollArea "
"automatically provides scroll bars. </p><p>The example "
"demonstrates how QLabel's ability to scale its contents "
"(QLabel::scaledContents), and QScrollArea's ability to "
"automatically resize its contents "
"(QScrollArea::widgetResizable), can be used to implement "
"zooming and scaling features. </p><p>In addition the example "
"shows how to use QPainter to print an image.</p>"));
}
void ImageViewer::createActions()
{
openAct = new QAction(tr("&Open..."), this);
openAct->setShortcut(tr("Ctrl+O"));
connect(openAct, SIGNAL(triggered()), this, SLOT(open()));
void ImageViewer::createActions() {
openAct = new QAction(tr("&Open..."), this);
openAct->setShortcut(tr("Ctrl+O"));
connect(openAct, SIGNAL(triggered()), this, SLOT(open()));
printAct = new QAction(tr("&Print..."), this);
printAct->setShortcut(tr("Ctrl+P"));
printAct->setEnabled(false);
connect(printAct, SIGNAL(triggered()), this, SLOT(print()));
printAct = new QAction(tr("&Print..."), this);
printAct->setShortcut(tr("Ctrl+P"));
printAct->setEnabled(false);
connect(printAct, SIGNAL(triggered()), this, SLOT(print()));
exitAct = new QAction(tr("E&xit"), this);
exitAct->setShortcut(tr("Ctrl+Q"));
connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
exitAct = new QAction(tr("E&xit"), this);
exitAct->setShortcut(tr("Ctrl+Q"));
connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
zoomInAct = new QAction(tr("Zoom &In (25%)"), this);
zoomInAct->setShortcut(tr("Ctrl++"));
zoomInAct->setEnabled(false);
connect(zoomInAct, SIGNAL(triggered()), this, SLOT(zoomIn()));
zoomInAct = new QAction(tr("Zoom &In (25%)"), this);
zoomInAct->setShortcut(tr("Ctrl++"));
zoomInAct->setEnabled(false);
connect(zoomInAct, SIGNAL(triggered()), this, SLOT(zoomIn()));
zoomOutAct = new QAction(tr("Zoom &Out (25%)"), this);
zoomOutAct->setShortcut(tr("Ctrl+-"));
zoomOutAct->setEnabled(false);
connect(zoomOutAct, SIGNAL(triggered()), this, SLOT(zoomOut()));
zoomOutAct = new QAction(tr("Zoom &Out (25%)"), this);
zoomOutAct->setShortcut(tr("Ctrl+-"));
zoomOutAct->setEnabled(false);
connect(zoomOutAct, SIGNAL(triggered()), this, SLOT(zoomOut()));
normalSizeAct = new QAction(tr("&Normal Size"), this);
normalSizeAct->setShortcut(tr("Ctrl+S"));
normalSizeAct->setEnabled(false);
connect(normalSizeAct, SIGNAL(triggered()), this, SLOT(normalSize()));
normalSizeAct = new QAction(tr("&Normal Size"), this);
normalSizeAct->setShortcut(tr("Ctrl+S"));
normalSizeAct->setEnabled(false);
connect(normalSizeAct, SIGNAL(triggered()), this, SLOT(normalSize()));
fitToWindowAct = new QAction(tr("&Fit to Window"), this);
fitToWindowAct->setEnabled(false);
fitToWindowAct->setCheckable(true);
fitToWindowAct->setShortcut(tr("Ctrl+F"));
connect(fitToWindowAct, SIGNAL(triggered()), this, SLOT(fitToWindow()));
fitToWindowAct = new QAction(tr("&Fit to Window"), this);
fitToWindowAct->setEnabled(false);
fitToWindowAct->setCheckable(true);
fitToWindowAct->setShortcut(tr("Ctrl+F"));
connect(fitToWindowAct, SIGNAL(triggered()), this, SLOT(fitToWindow()));
aboutAct = new QAction(tr("&About"), this);
connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
aboutAct = new QAction(tr("&About"), this);
connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
aboutQtAct = new QAction(tr("About &Qt"), this);
connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
}
aboutQtAct = new QAction(tr("About &Qt"), this);
connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
}
void ImageViewer::createMenus()
{
fileMenu = new QMenu(tr("&File"), this);
fileMenu->addAction(openAct);
fileMenu->addAction(printAct);
fileMenu->addSeparator();
fileMenu->addAction(exitAct);
void ImageViewer::createMenus() {
fileMenu = new QMenu(tr("&File"), this);
fileMenu->addAction(openAct);
fileMenu->addAction(printAct);
fileMenu->addSeparator();
fileMenu->addAction(exitAct);
viewMenu = new QMenu(tr("&View"), this);
viewMenu->addAction(zoomInAct);
viewMenu->addAction(zoomOutAct);
viewMenu->addAction(normalSizeAct);
viewMenu->addSeparator();
viewMenu->addAction(fitToWindowAct);
viewMenu = new QMenu(tr("&View"), this);
viewMenu->addAction(zoomInAct);
viewMenu->addAction(zoomOutAct);
viewMenu->addAction(normalSizeAct);
viewMenu->addSeparator();
viewMenu->addAction(fitToWindowAct);
helpMenu = new QMenu(tr("&Help"), this);
helpMenu->addAction(aboutAct);
helpMenu->addAction(aboutQtAct);
helpMenu = new QMenu(tr("&Help"), this);
helpMenu->addAction(aboutAct);
helpMenu->addAction(aboutQtAct);
menuBar()->addMenu(fileMenu);
menuBar()->addMenu(viewMenu);
menuBar()->addMenu(helpMenu);
}
menuBar()->addMenu(fileMenu);
menuBar()->addMenu(viewMenu);
menuBar()->addMenu(helpMenu);
}
void ImageViewer::updateActions()
{
zoomInAct->setEnabled(!fitToWindowAct->isChecked());
zoomOutAct->setEnabled(!fitToWindowAct->isChecked());
normalSizeAct->setEnabled(!fitToWindowAct->isChecked());
}
void ImageViewer::updateActions() {
zoomInAct->setEnabled(!fitToWindowAct->isChecked());
zoomOutAct->setEnabled(!fitToWindowAct->isChecked());
normalSizeAct->setEnabled(!fitToWindowAct->isChecked());
}
void ImageViewer::scaleImage(double factor)
{
Q_ASSERT(imageLabel->pixmap());
scaleFactor *= factor;
imageLabel->resize(scaleFactor * imageLabel->pixmap()->size());
void ImageViewer::scaleImage(double factor) {
Q_ASSERT(imageLabel->pixmap());
scaleFactor *= factor;
imageLabel->resize(scaleFactor * imageLabel->pixmap()->size());
adjustScrollBar(scrollArea->horizontalScrollBar(), factor);
adjustScrollBar(scrollArea->verticalScrollBar(), factor);
adjustScrollBar(scrollArea->horizontalScrollBar(), factor);
adjustScrollBar(scrollArea->verticalScrollBar(), factor);
zoomInAct->setEnabled(scaleFactor < 3.0);
zoomOutAct->setEnabled(scaleFactor > 0.333);
}
zoomInAct->setEnabled(scaleFactor < 3.0);
zoomOutAct->setEnabled(scaleFactor > 0.333);
}
void ImageViewer::adjustScrollBar(QScrollBar *scrollBar, double factor)
{
scrollBar->setValue(int(factor * scrollBar->value()
+ ((factor - 1) * scrollBar->pageStep()/2)));
}
void ImageViewer::adjustScrollBar(QScrollBar* scrollBar, double factor) {
scrollBar->setValue(int(factor * scrollBar->value() + ((factor - 1) * scrollBar->pageStep()/2)));
}

139
imageviewer-qt4.h
View File

@ -38,16 +38,16 @@
**
****************************************************************************/
#ifndef IMAGEVIEWER_H
#define IMAGEVIEWER_H
#ifndef IMAGEVIEWER_H
#define IMAGEVIEWER_H
#include <QMainWindow>
#include <QPrinter>
#include <QtGui>
#include <QResizeEvent>
#include <QPushButton>
#include <QSlider>
#include <QColor>
#include <QMainWindow>
#include <QPrinter>
#include <QtGui>
#include <QResizeEvent>
#include <QPushButton>
#include <QSlider>
#include <QColor>
#include "fstream"
@ -62,61 +62,53 @@ class QTabWidget;
class QPushButton;
class QSpinBox;
class ImageViewer : public QMainWindow
{
Q_OBJECT
class ImageViewer : public QMainWindow {
Q_OBJECT
private:
private:
// Beispiel für GUI Elemente
QWidget* m_option_panel1;
QVBoxLayout* m_option_layout1;
// Beispiel für GUI Elemente
QWidget* m_option_panel1;
QVBoxLayout* m_option_layout1;
QWidget* m_option_panel2;
QVBoxLayout* m_option_layout2;
QWidget* m_option_panel2;
QVBoxLayout* m_option_layout2;
QPushButton* button1;
QPushButton* button2;
QPushButton* button3;
QPushButton* button4;
QSpinBox* spinbox1;
QPushButton* button1;
QPushButton* button2;
QPushButton* button3;
QPushButton* button4;
QSpinBox* spinbox1;
// hier können weitere GUI Objekte hin wie Buttons Slider etc.
QSlider* lineSlider;
// hier können weitere GUI Objekte hin wie Buttons Slider etc.
private slots:
// Beispiel für einen Algorithmus
void drawBlackLine();
QSlider* lineSlider;
// hier können weitere als SLOTS definierte Funktionen hin, die auf Knopfdruck etc. aufgerufen werden.
void drawRainbowCross();
void drawDiagonalCross();
void acidTrippin();
private slots:
void open();
void print();
void zoomIn();
void zoomOut();
void normalSize();
void fitToWindow();
void about();
// Beispiel für einen Algorithmus
void drawBlackLine();
// hier können weitere als SLOTS definierte Funktionen hin, die auf Knopfdruck etc. aufgerufen werden.
void drawRainbowCross();
void drawDiagonalCross();
void acidTrippin();
void open();
void print();
void zoomIn();
void zoomOut();
void normalSize();
void fitToWindow();
void about();
public:
ImageViewer();
bool loadFile(const QString &);
void updateImageDisplay();
protected:
public:
ImageViewer();
bool loadFile(const QString &);
void updateImageDisplay();
protected:
void resizeEvent(QResizeEvent * event);
private:
private:
void drawRainbowCross(int h);
// in diesen Beiden Methoden sind Änderungen nötig bzw. sie dienen als
// Vorlage für eigene Methoden.
void generateControlPanels();
@ -125,13 +117,13 @@ protected:
void startLogging();
void generateMainGui();
void createActions();
void createMenus();
void updateActions();
void scaleImage(double factor);
void adjustScrollBar(QScrollBar *scrollBar, double factor);
void createActions();
void createMenus();
void updateActions();
void scaleImage(double factor);
void adjustScrollBar(QScrollBar *scrollBar, double factor);
void renewLogging();
void renewLogging();
QTabWidget* tabWidget;
QTextEdit* logBrowser;
@ -141,27 +133,24 @@ protected:
double scaleFactor;
QImage* image;
std::fstream logFile;
#ifndef QT_NO_PRINTER
QPrinter printer;
#endif
QAction *openAct;
QAction *printAct;
QAction *exitAct;
QAction *zoomInAct;
QAction *zoomOutAct;
QAction *normalSizeAct;
QAction *fitToWindowAct;
QAction *aboutAct;
QAction *aboutQtAct;
QAction *openAct;
QAction *printAct;
QAction *exitAct;
QAction *zoomInAct;
QAction *zoomOutAct;
QAction *normalSizeAct;
QAction *fitToWindowAct;
QAction *aboutAct;
QAction *aboutQtAct;
QMenu *fileMenu;
QMenu *viewMenu;
QMenu *helpMenu;
};
#endif
QMenu *fileMenu;
QMenu *viewMenu;
QMenu *helpMenu;
};
#endif