A lot of checkeable images

[IRON_MAN]

Hello,
I'm creating a window with a lot of images but although I know how to add one I have problems adding the rest of them.
I have done a class to insert the first image.
Do I have to another class in the same. h and .cpp files?Itake many errors if I do like this! this is the class that I'm doing:

changingbutton::changingbutton(QWidget *parent)
: QPushButton(parent)

[spirit]

hm, why do you subclass QPushButton?
the fastes way it's to put a layout on your widget (for exmample QGridLayout) and then in a loop add a label (QLabel) with image into layout.

another way, it's to create you own widget which will load images and draw it in its paintEvent.

[IRON_MAN]

I don't use a label because the image must behave as a button. When I push it, I have to see one picture and when i do not, another one.
At first I tried doing with a label, but I didn't get my goal.
Could you tell me how can i do the same with a label?

[spirit]

the first option is to subclass QLabel and add signal clicked.
the second otpion is to install event filter for a label and process QMouseEvent.

but if you want to use buttons then I don't understand why you sublass QPushButton if you can use clicked signal for changing images.

[spirit]

take a look at this example (it can be optimazed, cashing imagez ect.), it's just for demonstration a buttons approach
test.h

#ifndef TEST_H
#define TEST_H
 
#include <QDialog>
 
class Test: public QDialog
{
	Q_OBJECT
 
public:	
	Test(QWidget *parent = 0);
 
private:
	void init();
 
private slots:
	void changeImage();
 
private:
	enum State { Background, Foreground }; 
 
	int m_rows;
	int m_columns;
	class QGridLayout *m_gl;
};
 
#endif//TEST_H

#ifndef TEST_H
#define TEST_H

#include <QDialog>

class Test: public QDialog
{
	Q_OBJECT

public:	
	Test(QWidget *parent = 0);

private:
	void init();

private slots:
	void changeImage();

private:
	enum State { Background, Foreground }; 

	int m_rows;
	int m_columns;
	class QGridLayout *m_gl;
};

#endif//TEST_H

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test.cpp

#include <QtGui>
#include "test.h"
 
Test::Test(QWidget *parent)
	: QDialog(parent), m_rows(5), m_columns(5)
{
	m_gl = new QGridLayout(this);
	init();
}
 
void Test::init()
{
	for (int r = 0; r < m_rows; ++r) {
		for (int c = 0; c < m_columns; ++c) {
			QPushButton *pb = new QPushButton();
			pb->setProperty("state", Background);
			const QString bin = QString::number(r) + QString::number(c) + "b.png";
			const QString fin = QString::number(r) + QString::number(c) + "f.png";
 
			QPixmap fp(10, 10);
			fp.fill(QColor(qrand()%255, qrand()%255, qrand()%255));
			fp.save(fin);//must be optimized
 
			QPixmap bp(10, 10);
			bp.fill(QColor(qrand()%255, qrand()%255, qrand()%255));
			bp.save(bin);//must be optimized
 
			pb->setProperty("backgroundImageName", bin);
			pb->setProperty("foregroundImageName", fin);
			pb->setText("Background");
			pb->setIcon(QIcon(bp));
			connect(pb, SIGNAL(clicked()), SLOT(changeImage()));
			m_gl->addWidget(pb, r, c);
		}
	}
}
 
void Test::changeImage()
{
	QPushButton *pb = qobject_cast<QPushButton *>(sender());
	if (!pb)
		return;
	const State state = State(pb->property("state").toInt());	
	pb->setText(state == Background ? "Foreground" : "Background");
	pb->setProperty("state", state == Background ? Foreground : Background);
	const QString fileName = (state == Background ? pb->property("foregroundImageName").toString() : pb->property("backgroundImageName").toString());
	pb->setIcon(QIcon(fileName));
}

#include <QtGui>
#include "test.h"

Test::Test(QWidget *parent)
	: QDialog(parent), m_rows(5), m_columns(5)
{
	m_gl = new QGridLayout(this);
	init();
}

void Test::init()
{
	for (int r = 0; r < m_rows; ++r) {
		for (int c = 0; c < m_columns; ++c) {
			QPushButton *pb = new QPushButton();
			pb->setProperty("state", Background);
			const QString bin = QString::number(r) + QString::number(c) + "b.png";
			const QString fin = QString::number(r) + QString::number(c) + "f.png";

			QPixmap fp(10, 10);
			fp.fill(QColor(qrand()%255, qrand()%255, qrand()%255));
			fp.save(fin);//must be optimized

			QPixmap bp(10, 10);
			bp.fill(QColor(qrand()%255, qrand()%255, qrand()%255));
			bp.save(bin);//must be optimized

			pb->setProperty("backgroundImageName", bin);
			pb->setProperty("foregroundImageName", fin);
			pb->setText("Background");
			pb->setIcon(QIcon(bp));
			connect(pb, SIGNAL(clicked()), SLOT(changeImage()));
			m_gl->addWidget(pb, r, c);
		}
	}
}

void Test::changeImage()
{
	QPushButton *pb = qobject_cast<QPushButton *>(sender());
	if (!pb)
		return;
	const State state = State(pb->property("state").toInt());	
	pb->setText(state == Background ? "Foreground" : "Background");
	pb->setProperty("state", state == Background ? Foreground : Background);
	const QString fileName = (state == Background ? pb->property("foregroundImageName").toString() : pb->property("backgroundImageName").toString());
	pb->setIcon(QIcon(fileName));
}

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main.cpp

#include <QApplication>
#include "test.h"
 
int main(int argc, char **argv)
{
	QApplication app(argc, argv);
 
	Test test;
	test.show();
 
	return app.exec();
}

#include <QApplication>
#include "test.h"

int main(int argc, char **argv)
{
	QApplication app(argc, argv);

	Test test;
	test.show();

	return app.exec();
}

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[IRON_MAN]

The code that I'm using to disabled a button is the following one:

QPushButton *xxx= new QPushButton;
xxx->setDisabled(true);
xxx->setIcon(QIcon("IMAGE1.bmp"));
xxx->setText("disabled");

How can I disabled a button?If I do like this i don't lock the function of the button.

[IRON_MAN]

The code that I'm using to disabled a button is the following one:

QPushButton *xxx= new QPushButton;
xxx->setDisabled(true);
xxx->setIcon(QIcon("IMAGE1.bmp"));
xxx->setText("disabled");

How can I disabled a button?If I do like this i don't lock the function of the button.

[IRON_MAN]

To disabled a button I only need to put this sentence:
setDisabled(true).
I have asked a stupid question!

know I have another problem. My images are .bmp. I have loaded them to my new proyect giving a new name as you did "00b.qrc"... and then, in the place that you set in note of test.cpp:


const QString bin = QString::number(r) + QString::number(c) + "b.png";
const QString fin = QString::number(r) + QString::number(c) + "f.png";

I change for :

const QString bin = QString::number(r) + QString::number(c) + "b.bmp";
const QString fin = QString::number(r) + QString::number(c) + "f.bmp";

What I'm doing wrong?