How to include .txt on Qt

[Payx]

Okay understood how it works now.

Why it say that "Costs" is not declared, it is the name of the QMap right ?

[mrjj]

@Payx
Yes Costs is the QMap variable.

[Payx]

How do i declare a QMap ?

i tried

QMap<QRgb, CostInfo > Costs;

[mrjj]

@Payx
Yes that is how you declare an empty QMap called Costs.

[Payx]

Yes but it say that CostInfo is not declared again

[mrjj]

@Payx
CostInfo must be declared before you use it in QMap
Where is it?
you used to have struct CostInfo declaration.

[Payx]

I put my declaration of CostInfo in my .h

[mrjj]

@Payx
and is that .h file included in the same file where u have the Qmap def ?

[Payx]

i got

QMap<QRgb, CostInfo > Costs = {
	{ QColor(255 , 0 , 0 ).rgb(), { "://fraise.png", 10 }},
	{ QColor(0 , 255 , 0 ).rgb(), { "://balleverte.png", 20 }},
	{ QColor(0 , 0 , 255 ).rgb(), { "://ballebleue.png", 20 }},
	{ QColor(255 , 255 , 255 ).rgb(), { "://balleblanche.png", 20 }},
	{ QColor(255 , 128 , 0 ).rgb(), { "://ballepeche.png", 20 }},
	{ QColor(0 , 0 , 0 ).rgb(), { "://noir.png", 20 }},
	{ QColor(102 , 51 , 0 ).rgb(), { "://marron.png", 20 }},
	{ QColor(255 , 102 , 78 ).rgb(), { "://rose.png", 20 }},
	{ QColor(0 , 204 , 204 ).rgb(), { "://turquoise.png", 20 }},
	{ QColor(255 , 178 , 102 ).rgb(), { "://beige.png", 20 }},
	{ QColor(76 , 0 , 153 ).rgb(), { "://violet.png", 20 }},
	{ QColor(100 , 100 , 100 ).rgb(), { "://gris.png", 20 }},
};

in my .cpp

and struct in my .h,

do i paste "QMap<QRgb, CostInfo > Costs;" in my .cpp like my function or in my .h (sorry but i didnt understand ur question ^^)

[mrjj]

@Payx
it sounds right.

The CostInfo is in .h ?

Can you show it ?

[Payx]

i think i fixed it i had :

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QPixmap>
#include <QPoint>
#include <QSize>
#include <iostream>

namespace Ui {
	class MainWindow;
}

class MainWindow : public QMainWindow
{
	Q_OBJECT

public:
	explicit MainWindow(QWidget *parent = 0);
	struct CostInfo
	{
		QString ImageName;
		int     cost;
	};



	~MainWindow();





private slots:
	void on_push_clicked();
	void on_push2_clicked();

	void on_verticalSlider_sliderMoved(int position);

	void on_verticalSlider_actionTriggered(int action);

private:
	Ui::MainWindow *ui;
	QImage pixi;
	QPixmap pixa;
	float k;
	int a;


	int z=1;
	int b;
};

#endif // MAINWINDOW_H

and now i remember that i have to paste in the .h but not in public or private so i have :

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QPixmap>
#include <QPoint>
#include <QSize>
#include <iostream>

namespace Ui {
	class MainWindow;
}
struct CostInfo
{
	QString ImageName;
	int     cost;
};


class MainWindow : public QMainWindow
{
	Q_OBJECT

public:
	explicit MainWindow(QWidget *parent = 0);



	~MainWindow();





private slots:
	void on_push_clicked();
	void on_push2_clicked();


	void on_verticalSlider_sliderMoved(int position);

	void on_verticalSlider_actionTriggered(int action);

private:
	Ui::MainWindow *ui;
	QImage pixi;
	QPixmap pixa;
	float k;
	int a;


	int z=1;
	int b;
};

#endif // MAINWINDOW_H

and what is this line :

QMapIterator<QRgb, CostInfo> i;

because it say "no matching function to call"

[mrjj]

I wonder if you dont have c++11 compiler.

"no matching function to call"
Make sure you have included QMapIterator

[Payx]

i included, no change.

How can i see if i have a c++ compiler ?

[mrjj]

@Payx
Ok. No sure what goes wrongly for you. Seems to have CostInfo
in .h and Costs QMap in cpp which should be fine.

• How can i see if i have a c++ compiler ?
  c++11 compiler. Meaning a compiler that knows the new c++11 version.
  I assume you do. But if you are on linux or using old Qt it might not be the case.

So what platform and Qt version?

[Payx]

i paste for you all my project so you can see exactly :

.h :

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QPixmap>
#include <QPoint>
#include <QSize>
#include <iostream>
#include <QMapIterator>
#include <QMap>

namespace Ui {
	class MainWindow;
}
struct CostInfo
{
	QString ImageName;
	int     cost;
};


class MainWindow : public QMainWindow
{
	Q_OBJECT

public:
	explicit MainWindow(QWidget *parent = 0);



	~MainWindow();





private slots:
	void on_push_clicked();
	void on_push2_clicked();


	void on_verticalSlider_sliderMoved(int position);

	void on_verticalSlider_actionTriggered(int action);

private:
	Ui::MainWindow *ui;
	QImage pixi;
	QPixmap pixa;
	float k;
	int a;


	int z=1;
	int b;
};

#endif // MAINWINDOW_H

.cpp (mainwidow)

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QPixmap>
#include <QImage>
#include <QFileDialog>
#include <QColor>
#include <QPoint>
#include <QSize>
#include <iostream>
#include <QMapIterator>
#include <QMap>
using namespace std;


QColor Couleurdominante(const QImage& image, const QPoint& topLeft, const QSize& rectSize);
void Remplissage(QImage& image, const QPoint& topLeft, const QSize& rectSize, const QColor& colour);


MainWindow::MainWindow(QWidget *parent) :
	QMainWindow(parent),
	ui(new Ui::MainWindow)
{
		ui->setupUi(this);

}


MainWindow::~MainWindow()
{
	delete ui;
}




void MainWindow::on_push_clicked()
{
	QString fileName = QFileDialog::getOpenFileName(this,
	tr("Open Image"), "/", tr("Image Files (*.png *.jpg *.bmp)"));
	QPixmap pix(fileName);
	ui->label->setPixmap(pix);
	const QSize s = pix.size();
	pixi = QImage(pix.toImage());

	ui->label_2->setText( "Size: " + QString::number(s.width()) +" "+ QString::number(s.height()) );

}

void MainWindow::on_push2_clicked()
{


	for (int i=0;i<pixi.width();i+=z){
						 for (int j=0;j<pixi.height();j+=z){
							 k=k+0.06;
							Remplissage(pixi,QPoint(i,j),QSize(z,z),Couleurdominante(pixi,QPoint(i,j),QSize(z,z)));

		}
	}

	pixa=QPixmap::fromImage(pixi);
	ui->label_3->setPixmap(pixa);
	float a = k - 0.06*z;
	ui->label_4->setText(QString::number(a));

}




void Remplissage(QImage& image, const QPoint& topLeft, const QSize& rectangle, const QColor& colour) {

	int maxX = topLeft.x() + rectangle.width();
	int maxY = topLeft.y() + rectangle.height();

	for(int x = topLeft.x(); x < maxX; ++x) {
		for(int y = topLeft.y(); y < maxY; ++y) {
			image.setPixelColor(x, y, colour);
			QMapIterator<QRgb, CostInfo> i;
			while (Costs.hasNext()) {
				i.next();
				QColor BaseColor( i.key() );
				if (Costs.contains( colour.rgb() ) || IsCloseColor(BaseColor, colour) )  {
					CostInfo& ci = Costs[colour.rgb()];
					int Cost = ci.Cost;
					QPixmap pix( ci.ImageName );
				}

		}			}
	}
}


QColor Couleurdominante(const QImage & image,const QPoint & topLeft, const QSize & rectangle)
{
		int rouge = 0, vert = 0, bleue = 0;

		int  X = topLeft.x() + rectangle.width();
		int  Y = topLeft.y() + rectangle.height();

		for (int y = topLeft.y(); y < Y; y++)  {
				for (int x = topLeft.x(); x < X; x++)   {
						QRgb pixel = image.pixel(x, y);

						rouge += qRed(pixel);
						vert += qGreen(pixel);
						bleue += qBlue(pixel);
				}
		}

		int n = rectangle.width() * rectangle.height();

		Q_ASSERT(n);
		if (n <= 0)
				return Qt::black;

		return QColor(rouge / n, vert / n, bleue / n);
}


QMap<QRgb, CostInfo > Costs = {
	{ QColor(255 , 0 , 0 ).rgb(), { "://fraise.png", 10 }},
	{ QColor(0 , 255 , 0 ).rgb(), { "://balleverte.png", 20 }},
	{ QColor(0 , 0 , 255 ).rgb(), { "://ballebleue.png", 20 }},
	{ QColor(255 , 255 , 255 ).rgb(), { "://balleblanche.png", 20 }},
	{ QColor(255 , 128 , 0 ).rgb(), { "://ballepeche.png", 20 }},
	{ QColor(0 , 0 , 0 ).rgb(), { "://noir.png", 20 }},
	{ QColor(102 , 51 , 0 ).rgb(), { "://marron.png", 20 }},
	{ QColor(255 , 102 , 78 ).rgb(), { "://rose.png", 20 }},
	{ QColor(0 , 204 , 204 ).rgb(), { "://turquoise.png", 20 }},
	{ QColor(255 , 178 , 102 ).rgb(), { "://beige.png", 20 }},
	{ QColor(76 , 0 , 153 ).rgb(), { "://violet.png", 20 }},
	{ QColor(100 , 100 , 100 ).rgb(), { "://gris.png", 20 }},
};

bool IsCloseColor( QColor c1, QColor c2 ) {
	int diffRed   = abs(c1.red() - c2.red());
	int diffGreen = abs(c1.green() - c2.green());
	int diffBlue  = abs(c1.blue()  - c2.blue());

	if (diffBlue+diffRed+diffGreen< 100){
		return true;

}	else{
				return false;


	}
}

void MainWindow::on_verticalSlider_sliderMoved(int position)
{
	ui->verticalSlider->setRange(1,50);
		z=position;
}

main .cpp

#include "mainwindow.h"
#include <QApplication>
#include <QPixmap>
#include <QCoreApplication>
#include <QFile>
#include <QString>
#include <QDebug>
#include <QTextStream>
#include <QMap>
#include <QMapIterator>

int main(int argc, char *argv[])
{
	QApplication a(argc, argv);
	MainWindow w;
	w.show();

	return a.exec();
}

I am on windows 10
Qt 4.1.0

[mrjj]

It looks ok.
What is the exact error you get?

Also 4.1 is very old. Are you using old mingw too?

Old compilers might not like the initialisation list/in place
If you just do
QMap<QRgb, CostInfo > Costs;

Will it compile then?

[Payx]

i added

QMap<QRgb, CostInfo > Costs;

In mainwindow.cpp

and my error is !


with only QMap ... it compile

[SGaist]

QMapIterator<QRgb, CostInfo> i; is wrong

It should be something like

QMap<QRgb, CostInfo>::const_iterator i = Costs.constBegin();
while (i.hasNext()) {
//etc.
}

[Payx]

@SGaist Thank you ! i think it works


i don't know how to solve the 3 first error

[SGaist]

Please, show the latest version of your code.