mirror of
https://github.com/creyD/intelliphoto.git
synced 2026-04-12 19:40:28 +02:00
282 lines
8.7 KiB
C++
282 lines
8.7 KiB
C++
// ---------- IntelliPhotoGui.cpp ----------
|
|
|
|
#include <QtWidgets>
|
|
|
|
#include "IntelliPhotoGui.h"
|
|
#include "PaintingArea.h"
|
|
|
|
// IntelliPhotoGui constructor
|
|
IntelliPhotoGui::IntelliPhotoGui()
|
|
{
|
|
//create Gui elemnts and lay them out
|
|
createGui();
|
|
// Create actions
|
|
createActions();
|
|
//create Menus
|
|
createMenus();
|
|
//set style of the gui
|
|
setIntelliStyle();
|
|
|
|
// Size the app
|
|
resize(500, 500);
|
|
}
|
|
|
|
|
|
// User tried to close the app
|
|
void IntelliPhotoGui::closeEvent(QCloseEvent *event)
|
|
{
|
|
// If they try to close maybeSave() returns true
|
|
// if no changes have been made and the app closes
|
|
if (maybeSave()) {
|
|
event->accept();
|
|
} else {
|
|
|
|
// If there have been changes ignore the event
|
|
event->ignore();
|
|
}
|
|
}
|
|
|
|
// Check if the current image has been changed and then
|
|
// open a dialog to open a file
|
|
void IntelliPhotoGui::open()
|
|
{
|
|
// Check if changes have been made since last save
|
|
// maybeSave() returns true if no changes have been made
|
|
if (maybeSave()) {
|
|
|
|
// Get the file to open from a dialog
|
|
// tr sets the window title to Open File
|
|
// QDir opens the current dirctory
|
|
QString fileName = QFileDialog::getOpenFileName(this,
|
|
tr("Open File"), QDir::currentPath());
|
|
|
|
// If we have a file name load the image and place
|
|
// it in the scribbleArea
|
|
if (!fileName.isEmpty())
|
|
paintingArea->openImage(fileName);
|
|
}
|
|
}
|
|
|
|
// Called when the user clicks Save As in the menu
|
|
void IntelliPhotoGui::save()
|
|
{
|
|
// A QAction represents the action of the user clicking
|
|
QAction *action = qobject_cast<QAction *>(sender());
|
|
|
|
// Stores the array of bytes of the users data
|
|
QByteArray fileFormat = action->data().toByteArray();
|
|
|
|
// Pass it to be saved
|
|
saveFile(fileFormat);
|
|
}
|
|
|
|
// Opens a dialog to change the pen color
|
|
void IntelliPhotoGui::penColor()
|
|
{
|
|
// Store the chosen color from the dialog
|
|
QColor newColor = QColorDialog::getColor(paintingArea->penColor());
|
|
|
|
// If a valid color set it
|
|
if (newColor.isValid())
|
|
paintingArea->setPenColor(newColor);
|
|
}
|
|
|
|
// Opens a dialog that allows the user to change the pen width
|
|
void IntelliPhotoGui::penWidth()
|
|
{
|
|
// Stores button value
|
|
bool ok;
|
|
|
|
// tr("Scribble") is the title
|
|
// the next tr is the text to display
|
|
// Get the current pen width
|
|
// Define the min, max, step and ok button
|
|
int newWidth = QInputDialog::getInt(this, tr("Painting"),
|
|
tr("Select pen width:"),
|
|
paintingArea->penWidth(),
|
|
1, 500, 1, &ok);
|
|
// Change the pen width
|
|
if (ok)
|
|
paintingArea->setPenWidth(newWidth);
|
|
}
|
|
|
|
// Open an about dialog
|
|
void IntelliPhotoGui::about()
|
|
{
|
|
// Window title and text to display
|
|
QMessageBox::about(this, tr("About Painting"),
|
|
tr("<p>The <b>Painting</b> example is awesome</p>"));
|
|
}
|
|
|
|
// Define menu actions that call functions
|
|
void IntelliPhotoGui::createActions()
|
|
{
|
|
//connect signal and slots of gui element
|
|
connect(this->clearButton, SIGNAL(clicked()), paintingArea, SLOT(clearImage()));
|
|
|
|
// Create the action tied to the menu
|
|
openAct = new QAction(tr("&Open..."), this);
|
|
|
|
// Define the associated shortcut key
|
|
openAct->setShortcuts(QKeySequence::Open);
|
|
|
|
// Tie the action to IntelliPhotoGui::open()
|
|
connect(openAct, SIGNAL(triggered()), this, SLOT(open()));
|
|
|
|
// Get a list of the supported file formats
|
|
// QImageWriter is used to write images to files
|
|
foreach (QByteArray format, QImageWriter::supportedImageFormats()) {
|
|
QString text = tr("%1...").arg(QString(format).toUpper());
|
|
|
|
// Create an action for each file format
|
|
QAction *action = new QAction(text, this);
|
|
|
|
// Set an action for each file format
|
|
action->setData(format);
|
|
|
|
// When clicked call IntelliPhotoGui::save()
|
|
connect(action, SIGNAL(triggered()), this, SLOT(save()));
|
|
|
|
// Attach each file format option menu item to Save As
|
|
saveAsActs.append(action);
|
|
}
|
|
|
|
|
|
// Create exit action and tie to IntelliPhotoGui::close()
|
|
exitAct = new QAction(tr("E&xit"), this);
|
|
exitAct->setShortcuts(QKeySequence::Quit);
|
|
connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
|
|
|
|
// Create pen color action and tie to IntelliPhotoGui::penColor()
|
|
penColorAct = new QAction(tr("&Pen Color..."), this);
|
|
connect(penColorAct, SIGNAL(triggered()), this, SLOT(penColor()));
|
|
|
|
// Create pen width action and tie to IntelliPhotoGui::penWidth()
|
|
penWidthAct = new QAction(tr("Pen &Width..."), this);
|
|
connect(penWidthAct, SIGNAL(triggered()), this, SLOT(penWidth()));
|
|
|
|
// Create clear screen action and tie to IntelliPhotoGui::clearImage()
|
|
clearScreenAct = new QAction(tr("&Clear Screen"), this);
|
|
clearScreenAct->setShortcut(tr("Ctrl+L"));
|
|
connect(clearScreenAct, SIGNAL(triggered()),
|
|
paintingArea, SLOT(clearImage()));
|
|
|
|
// Create about action and tie to IntelliPhotoGui::about()
|
|
aboutAct = new QAction(tr("&About"), this);
|
|
connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
|
|
|
|
// Create about Qt action and tie to IntelliPhotoGui::aboutQt()
|
|
aboutQtAct = new QAction(tr("About &Qt"), this);
|
|
connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
|
|
}
|
|
|
|
// Create the menubar
|
|
void IntelliPhotoGui::createMenus()
|
|
{
|
|
// Create Save As option and the list of file types
|
|
saveAsMenu = new QMenu(tr("&Save As"), this);
|
|
foreach (QAction *action, saveAsActs)
|
|
saveAsMenu->addAction(action);
|
|
|
|
// Attach all actions to File
|
|
fileMenu = new QMenu(tr("&File"), this);
|
|
fileMenu->addAction(openAct);
|
|
fileMenu->addMenu(saveAsMenu);
|
|
fileMenu->addSeparator();
|
|
fileMenu->addAction(exitAct);
|
|
|
|
// Attach all actions to Options
|
|
optionMenu = new QMenu(tr("&Options"), this);
|
|
optionMenu->addAction(penColorAct);
|
|
optionMenu->addAction(penWidthAct);
|
|
optionMenu->addSeparator();
|
|
optionMenu->addAction(clearScreenAct);
|
|
|
|
// Attach all actions to Help
|
|
helpMenu = new QMenu(tr("&Help"), this);
|
|
helpMenu->addAction(aboutAct);
|
|
helpMenu->addAction(aboutQtAct);
|
|
|
|
// Add menu items to the menubar
|
|
menuBar()->addMenu(fileMenu);
|
|
menuBar()->addMenu(optionMenu);
|
|
menuBar()->addMenu(helpMenu);
|
|
}
|
|
|
|
void IntelliPhotoGui::createGui(){
|
|
//create a central widget to work on
|
|
centralGuiWidget = new QWidget(this);
|
|
setCentralWidget(centralGuiWidget);
|
|
|
|
//create the grid for the layout
|
|
mainLayout = new QGridLayout(centralGuiWidget);
|
|
centralGuiWidget->setLayout(mainLayout);
|
|
|
|
//create Gui elements
|
|
clearButton = new QPushButton("Clear");
|
|
paintingArea = new PaintingArea();
|
|
|
|
//set gui elemtns position
|
|
mainLayout->addWidget(paintingArea,0,0,10,10);
|
|
mainLayout->addWidget(clearButton,0,10,1,1);
|
|
}
|
|
|
|
void IntelliPhotoGui::setIntelliStyle(){
|
|
// Set the title
|
|
setWindowTitle("IntelliPhoto Prototype");
|
|
//set style sheet
|
|
this->setStyleSheet("background-color:rgb(64,64,64)");
|
|
this->centralGuiWidget->setStyleSheet("color:rgb(255,255,255)");
|
|
this->menuBar()->setStyleSheet("color:rgb(255,255,255)");
|
|
}
|
|
|
|
bool IntelliPhotoGui::maybeSave()
|
|
{
|
|
// Check for changes since last save
|
|
if (paintingArea->isModified()) {
|
|
QMessageBox::StandardButton ret;
|
|
|
|
// Scribble is the title
|
|
// Add text and the buttons
|
|
ret = QMessageBox::warning(this, tr("Painting"),
|
|
tr("The image has been modified.\n"
|
|
"Do you want to save your changes?"),
|
|
QMessageBox::Save | QMessageBox::Discard
|
|
| QMessageBox::Cancel);
|
|
|
|
// If save button clicked call for file to be saved
|
|
if (ret == QMessageBox::Save) {
|
|
return saveFile("png");
|
|
|
|
// If cancel do nothing
|
|
} else if (ret == QMessageBox::Cancel) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool IntelliPhotoGui::saveFile(const QByteArray &fileFormat)
|
|
{
|
|
// Define path, name and default file type
|
|
QString initialPath = QDir::currentPath() + "/untitled." + fileFormat;
|
|
|
|
// Get selected file from dialog
|
|
// Add the proper file formats and extensions
|
|
QString fileName = QFileDialog::getSaveFileName(this, tr("Save As"),
|
|
initialPath,
|
|
tr("%1 Files (*.%2);;All Files (*)")
|
|
.arg(QString::fromLatin1(fileFormat.toUpper()))
|
|
.arg(QString::fromLatin1(fileFormat)));
|
|
|
|
// If no file do nothing
|
|
if (fileName.isEmpty()) {
|
|
return false;
|
|
} else {
|
|
|
|
// Call for the file to be saved
|
|
return paintingArea->saveImage(fileName, fileFormat.constData());
|
|
}
|
|
}
|
|
|